WorldWideScience

Sample records for accompanies pro-thymocyte proliferation

  1. Psychosocial Accompaniment

    Mary Watkins

    2015-08-01

    Full Text Available This essay advocates for a paradigm shift in psychology toward the activity and ethics of accompaniment. Accompaniment requires a reorientation of the subjectivity, interpersonal practices, and critical understanding of the accompanier so that (she can stand alongside others who desire listening, witnessing, advocacy, space to develop critical inquiry and research, and joint imagination and action to address desired and needed changes. The idea of “accompaniment” emerged in liberation theology in Latin America, and migrated into liberatory forms of psychology as “psychosocial accompaniment.” This essay explores accompaniment and its ethics from a phenomenological perspective, highlighting differences from mainstream stances in psychology. Attention is also given to the effects of accompaniment on the accompanier. Efforts to decolonize psychology require careful attention to the psychic decolonization of its practitioners and to the cultivation of decolonizing interpersonal practices that provide a relational and ethical foundation for joint research, restorative healing, and transformative action. Such practices endeavor through dialogue to build mutual respect and understanding, promote effective solidarity, and contribute to the empowerment of those marginalized. The decolonization of psychology should enable practitioners to be more effective in working for increased social, economic, and environmental justice; peace building and reconciliation; and local and global ecological sustainability.

  2. Peroxisomes : Membrane events accompanying peroxisome proliferation

    Opalinski, Lukasz; Veenhuis, Marten; van der Klei, Ida J.

    2011-01-01

    Peroxisomes are ubiquitous organelles surrounded by a single membrane that display a variety of metabolic functions. These vary with the organism in which they occur and with environmental conditions. Peroxisomes multiply by division of existing organelles and can be formed from ER. The peroxisomal

  3. [Wernicke encephalopathy accompanying linitis plastica].

    Soós, Zsuzsanna; Salamon, Mónika; Oláh, Roland; Czégeni, Anna; Salamon, Ferenc; Folyovich, András; Winkler, Gábor

    2014-01-05

    Wernicke encephalopathy (or Wernicke-Korsakoff encephalopathy) is a rarely diagnosed neurological disorder, which is caused by vitamin B1 deficiency. In the classical form it is characterized by a typical triad (confusion, oculomotor disturbance and ataxia), however, in the majority of the cases only confusion is present. It can be frequently observed in subjects with chronic alcohol consumption, but it may accompany different pathological states of which end stage malignant diseases are the most importants, where confusion may have different backgrounds. The authors present the case of an old male patient with advanced gastric cancer recognised and treated vitamin B1 deficiency, and they draw attention to difficulties of the diagnosis of Wernicke's disease.

  4. 19 CFR 148.4 - Accompanying articles.

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Accompanying articles. 148.4 Section 148.4 Customs... (CONTINUED) PERSONAL DECLARATIONS AND EXEMPTIONS General Provisions § 148.4 Accompanying articles. (a) Generally. Articles shall be considered as accompanying a passenger or brought in by him if the...

  5. Novice Collaboration in Solo and Accompaniment Improvisation

    Hansen, Anne-Marie; Andersen, Hans Jørgen

    2012-01-01

    This study investigates how non-musicians engaged in a solo-accompaniment music improvisation relationship. Seven user teams interacted with two electronic music instruments integrated in two pen tablets. One instrument was a melody instrument and the other a chord instru-ment. The study was done...

  6. Metastatic Basal Cell Carcinoma Accompanying Gorlin Syndrome

    Yeliz Bilir

    2014-01-01

    Full Text Available Gorlin-Goltz syndrome or basal cell nevus syndrome is an autosomal dominant syndrome characterized by skeletal anomalies, numerous cysts observed in the jaw, and multiple basal cell carcinoma of the skin, which may be accompanied by falx cerebri calcification. Basal cell carcinoma is the most commonly skin tumor with slow clinical course and low metastatic potential. Its concomitance with Gorlin syndrome, resulting from a mutation in a tumor suppressor gene, may substantially change morbidity and mortality. A 66-year-old male patient with a history of recurrent basal cell carcinoma was presented with exophthalmus in the left eye and the lesions localized in the left lateral orbita and left zygomatic area. His physical examination revealed hearing loss, gapped teeth, highly arched palate, and frontal prominence. Left orbital mass, cystic masses at frontal and ethmoidal sinuses, and multiple pulmonary nodules were detected at CT scans. Basal cell carcinoma was diagnosed from biopsy of ethmoid sinus. Based on the clinical and typical radiological characteristics (falx cerebri calcification, bifid costa, and odontogenic cysts, the patient was diagnosed with metastatic skin basal cell carcinoma accompanied by Gorlin syndrome. Our case is a basal cell carcinoma with aggressive course accompanying a rarely seen syndrome.

  7. Metastatic Basal cell carcinoma accompanying gorlin syndrome.

    Bilir, Yeliz; Gokce, Erkan; Ozturk, Banu; Deresoy, Faik Alev; Yuksekkaya, Ruken; Yaman, Emel

    2014-01-01

    Gorlin-Goltz syndrome or basal cell nevus syndrome is an autosomal dominant syndrome characterized by skeletal anomalies, numerous cysts observed in the jaw, and multiple basal cell carcinoma of the skin, which may be accompanied by falx cerebri calcification. Basal cell carcinoma is the most commonly skin tumor with slow clinical course and low metastatic potential. Its concomitance with Gorlin syndrome, resulting from a mutation in a tumor suppressor gene, may substantially change morbidity and mortality. A 66-year-old male patient with a history of recurrent basal cell carcinoma was presented with exophthalmus in the left eye and the lesions localized in the left lateral orbita and left zygomatic area. His physical examination revealed hearing loss, gapped teeth, highly arched palate, and frontal prominence. Left orbital mass, cystic masses at frontal and ethmoidal sinuses, and multiple pulmonary nodules were detected at CT scans. Basal cell carcinoma was diagnosed from biopsy of ethmoid sinus. Based on the clinical and typical radiological characteristics (falx cerebri calcification, bifid costa, and odontogenic cysts), the patient was diagnosed with metastatic skin basal cell carcinoma accompanied by Gorlin syndrome. Our case is a basal cell carcinoma with aggressive course accompanying a rarely seen syndrome.

  8. Solutions manual to accompany Nonlinear programming

    Bazaraa, Mokhtar S; Shetty, C M

    2014-01-01

    As the Solutions Manual, this book is meant to accompany the main title, Nonlinear Programming: Theory and Algorithms, Third Edition. This book presents recent developments of key topics in nonlinear programming (NLP) using a logical and self-contained format. The volume is divided into three sections: convex analysis, optimality conditions, and dual computational techniques. Precise statements of algortihms are given along with convergence analysis. Each chapter contains detailed numerical examples, graphical illustrations, and numerous exercises to aid readers in understanding the concepts a

  9. Solutions manual to accompany Fundamentals of calculus

    Morris, Carla C

    2015-01-01

    Solutions Manual to Accompany Fundamentals of Calculus the text that encourages students to use power, quotient, and product rules for solutions as well as stresses the importance of modeling skills.  In addition to core integral and differential calculus coverage, the core book features finite calculus, which lends itself to modeling and spreadsheets.  Specifically, finite calculus is applied to marginal economic analysis, finance, growth, and decay.  Includes: Linear Equations and Functions The Derivative Using the Derivative Exponential and Logarithmic

  10. Severe Hypoglycemia Accompanied with Thyroid Crisis

    Yuki Nakatani

    2012-01-01

    Full Text Available We report a 32-year-old Japanese women with severe hypoglycemia accompanied with thyroid crisis. She complained of dyspnea, general fatigue, and leg edema. She was diagnosed with hyperthyroidism with congestive heart failure and liver dysfunction. Soon after admission, sudden cardiopulmonary arrest occurred. She was then transferred to the intensive care unit. Her serum glucose level was 7 mg/dl. Intravenous glucose, hydrocortisone, diuretics, and continuous hemodiafiltration (CHDF saved her. We considered that hypoglycemia occurred due to heart failure and liver dysfunction due to thyroid crisis.

  11. Tumefactive Brain Demyelination Accompanying MADSAM Neuropathy

    Şefik Evren Erdener

    2015-09-01

    Full Text Available Multifocal acquired demyelinating sensory and motor (MADSAM neuropathy is characterized by asymmetric multifocal motor and sensory loss and conduction blocks in peripheral nerves. Peripheral demyelinating diseases may be accompanied by demyelination in central nervous system (CNS. In this report, a MADSAM patient with a solitary tumefactive demyelinating lesion in brain is presented. Neuroimaging due to a visual field defect revealed a right parietooccipital lesion, which was initially misdiagnosed as a tumor. Pathological examination showed that it was demyelinating in nature. Peripheral nervous symptoms of the patient developed two years later and she was then diagnosed with MADSAM. There was prominent clinical and electrophysiological response to steroid treatment. Tumefactive brain involvement was not previously reported for MADSAM neuropathy, although it was documented in a single case with typical chronic inflammatory demyelinating polyneuropathy (CIDP. CNS involvement should therefore be considered in MADSAM patients.

  12. Bilateral foveal retinoschisis accompanying unilateral peripheral retinoschisis

    Nilufer Kocak

    2014-01-01

    Full Text Available X-linked juvenile retinoschisis is a rare hereditary retinal disease characterized by a tangential splitting of the neurosensory retina which may cause early-onset visual impairment. Existence of the retinal neurosensory layer splitting on cross-sectional images of optical coherance tomography (OCT and the absence of leakage on fluorescein angiography (FA help confirming the diagnosis. Such diagnostic tests are also helpful in determining the management of the disease. However, most of the retinoschisis cavities remain stable and rarely extend to the posterior pole, many authors suggest laser prophylaxis to avoid the potential risk of retinal detachment due to holes in the outer retinal layer. Herein, we report a case with bilateral foveal retinoschisis accompanying unilateral peripheral retinoschisis who was evaluated with detailed ophthalmologic examination. Visual acuity, fundoscopy, OCT, and FA remained stable in the second year of follow-up after prophylactic argon laser treatment.

  13. The ACOSTA accompanying measure A2106.

    Thayer, C; De Moor, G; Van Goor, J

    1994-10-01

    At a time when the informatics and telecommunications industries are looking for new markets to exploit in relation, for example, to the emerging ISDN and broadband communications networks, there is a need to create a broad consensus in Europe by bringing together systematically the relevant industries including telecom service providers, health care providers, insurance organisations, standardisation experts and policy makers. The aim of the ACOSTA (Consensus Formation and Standardisation Promotion) Accompanying Measure is the creation of more general awareness of the relevant environment among all the parties, better specification of common requirements and options taking better account of the real needs of the users, and enlargement of the common market in health care telematics.

  14. Review: Regional land subsidence accompanying groundwater extraction

    Galloway, Devin L.; Burbey, Thomas J.

    2011-01-01

    The extraction of groundwater can generate land subsidence by causing the compaction of susceptible aquifer systems, typically unconsolidated alluvial or basin-fill aquifer systems comprising aquifers and aquitards. Various ground-based and remotely sensed methods are used to measure and map subsidence. Many areas of subsidence caused by groundwater pumping have been identified and monitored, and corrective measures to slow or halt subsidence have been devised. Two principal means are used to mitigate subsidence caused by groundwater withdrawal—reduction of groundwater withdrawal, and artificial recharge. Analysis and simulation of aquifer-system compaction follow from the basic relations between head, stress, compressibility, and groundwater flow and are addressed primarily using two approaches—one based on conventional groundwater flow theory and one based on linear poroelasticity theory. Research and development to improve the assessment and analysis of aquifer-system compaction, the accompanying subsidence and potential ground ruptures are needed in the topic areas of the hydromechanical behavior of aquitards, the role of horizontal deformation, the application of differential synthetic aperture radar interferometry, and the regional-scale simulation of coupled groundwater flow and aquifer-system deformation to support resource management and hazard mitigation measures.

  15. 16 CFR 1500.125 - Labeling requirements for accompanying literature.

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Labeling requirements for accompanying literature. 1500.125 Section 1500.125 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL... REGULATIONS § 1500.125 Labeling requirements for accompanying literature. When any accompanying...

  16. [Kartagener syndrome and hemangiomatous proliferation of lung capillaries: case report and literature review].

    Słodkowska, J; Słupek, A; Burakowski, J; Bestry, I; Filipecki, S; Radomski, P

    1996-01-01

    The authors present a case of Kartagener syndrome complicated by pulmonary hypertension accompanied by the lung capillaries haemangiomatous proliferation (post mortem diagnosis). Review of a literature (23 published cases) of the haemangiomatous proliferation of lung capillaries emphasizes clinico-pathological aspects and differential diagnosis. A rarity of Kartagener syndrome is another interesting point of a published case.

  17. JPRS Report: Proliferation Issues

    2016-03-24

    report contains foreign media information on issues related to worldwide proliferation and transfer activities in nuclear, chemical , and biological...Intelligence Branch Head on Far East Weapons Threat [IDF Radio, 8 Jun 93] ............................. 12 Sarid: No More Nuclear Reactors To Be Built...Treaty," said Han, who is also unification minister. Non-Proliferation Treaty. Whether the proposed working-level contact to improve Asked about

  18. 9 CFR 93.307 - Articles accompanying horses.

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Articles accompanying horses. 93.307... FOR MEANS OF CONVEYANCE AND SHIPPING CONTAINERS Horses § 93.307 Articles accompanying horses. No..., blankets, or other things used for or about horses governed by the regulations this part, shall be...

  19. Harmonizing Melody with Meta-Structure of Piano Accompaniment Figure

    Yin Feng; Kui Chen; Xiang-Bin Liu

    2011-01-01

    In this paper,a meta-structure of piano accompaniment figure (meta-structure for short) is proposed to harmonize a melodic piece of music so as to construct a multi-voice music.Here we approach melody harmonization with piano accompaniment as a machine learning task in a probabilistic framework.A series of piano accompaniment figures are collected from the massive existing sample scores and converted into a set of meta-structure.After the procedure of samples training,a model is formulated to generate a proper piano accompaniment figure for a harmonizing unit in the context.This model is flexible in harmonizing a melody with piano accompaniment.The experimental results are evaluated and discussed.

  20. The nuclear proliferation; La proliferation nucleaire

    Gere, F. [Ecole Polytechnique, 91 - Palaiseau (France)

    1995-04-01

    In this book is detailed the beginning of nuclear military power, with the first bomb of Hiroshima, the different ways of getting uranium 235 and plutonium 239, and how the first countries (Usa, Ussr, China, United kingdom, France) got nuclear weapons. Then the most important part is reviewed with the details of non-proliferation treaty and the creation of IAEA to promote civilian nuclear power in the world and to control the use of plutonium and uranium in nuclear power plants. The cases of countries who reached the atom mastery, such Israel, South Africa, Pakistan, Iraq, North Korea, Argentina, Brazil, Iran, Algeria, Taiwan and the reasons which they wanted nuclear weapon for or why they gave up, are exposed.

  1. JPRS Report, Proliferation Issues

    2016-03-24

    competence in handling delicate and agricultral projects, medical research, sterilizing issues. tools, and digging oilfields. Electricity Minister Engineer ...CONTENTS 21 October 1992 [This report contains foreign media information on issues related to worldwide proliferation and transfer activities in nuclear...be built by shipping plutonium through the Strait of Malacca, For- the year 2006 to meet the soaring electricity demand, eign Ministry officials said

  2. Battling Nuclear Proliferation

    2007-01-01

    As the North Korean and Iranian nuclear issues develop and efforts to resolve them continue, global attention to anti-nuclear proliferation and the work of the International Atomic Energy Agency (IAEA) has become even more intense. Pang Sen, Chairman of

  3. The Nightmare of Proliferation

    PANG SEN; ZHOU WENYI

    2010-01-01

    @@ The year 2010 unfolded with conflicting developments in the arena of nuclear non-proliferation. Positive news foreshadowed the resumption of the once "dead" six-party talks regarding hostilities on the Korean Peninsula. On the other hand, the Iranian nuclear issue took a downward turn.

  4. JPRS Report, Proliferation Issues

    2016-03-24

    1 Editorials on Faliero’s Parliamentary Address... Parliamentary Address dence-building measures it would promote in the region to realise the objective of non-proliferation. New Delhi Rejects U.S...takes about 250 tonnes of used at Manuguru in the face of advice from juniors that heavy water to run each nuclear reactor. But during the all but a

  5. JPRS Report, Proliferation Issues

    2016-03-24

    All information has been obtained from foreign radio and television broadcasts, news agency transmissions, newspapers , books, and periodicals. Items...COMMERCE 8NATIONAL TECHNICAL INFORMATION SERVICE ’TIC Q.,’U ’ SPRINGFIELD, VA. 22161 PROLIFERATION ISSUES JPRS-TND-92-023 CONTENTS 16 July 1992 [This...Experts To Tour Azerbaijan ........................................................................................ 12 To Conduct Biochemical Analysis

  6. Herpes zoster laryngitis accompanied by Ramsay Hunt syndrome.

    Lee, Dong Hoon; Yoon, Tae Mi; Lee, Joon Kyoo; Joo, Young Eun; Lim, Sang Chul

    2013-01-01

    The most common presentation of herpes zoster in the head and neck region is called Ramsay Hunt syndrome (RHS), which rarely accompanies multiple cranial neuropathy. Herpes zoster also involves the mucous membrane of the tongue, palate, pharynx, and larynx. Herpes zoster infection of the larynx accompanied by Ramsay Hunt syndrome with cranial polyneuropathy is extremely rare, with only few reported cases in the literature. At the time of this report, a review of the medical literature disclosed 4 reported cases of herpes zoster laryngitis accompanied by Ramsay Hunt syndrome. Herein, we present 2 additional cases and report the clinical outcome of cranial polyneuropathy with a review of the literature.

  7. Correlation between thyroid function and nodular goiter accompanied with gallstone

    Shihong Ma; Qinjiang Liu; Xiaofeng Hou

    2014-01-01

    The-purpose-of-the-study-wass-to-explore-the-correlation-between-thyroid-function-and-nodular-goiter-accompanied-with-gal-stone.-Methods:We-col-ected-120-cases-about-nodular-goiter-accompanied-with-gal-stone-and-128-cases-about-nodular-goiter-and-establish-50-healthy-control-groups.-Detected-t-level-of-hyrotropic-hormone-(TSH),-total-tri-o-dothyronine-(TT3),-total-thyroxine-in-the-peripheral-venous-blood-of-these-cases-in-the-three-groups-by-using-electrochemilu-minescence-immunoassay,-measure-level-of-total-cholesterol-(TC),-high-density-lipoprotein-cholesterol-(HDL-C),-low-density-lipoprotein-cholesterol-(LDL-C)-and-total-bile-acid-(TBA)-levels-by-using-enzymic-method,-and-observed-the-changes-of-thyroid-function-and-blood-lipid-among-the-three-groups.-Results:The-serum-TT3-level-in-nodular-goiter-accompanied-with-gal-stone-group-and-the-nodular-goiter-group-was-significantly-lower-than-that-in-control-group-(P0.05).-Accordingly,-TC-and-LDL-C-level-in-nodular-goiter-accompanied-with-gal-stone-group-was-significantly-higher-than-that-in-nodular-goiter-and-control-group-(P0.05).-The-HDL-C-level-in-nodular-goiter-accompanied-with-gal-stone-group-and-control-group-was-higher-than-that-in-simple-nodular-goiter-group-(P<0.01).-Conclusion:The-originating-etiologic-factor-of-nodular-goiter-accompanied-with-gal-stone-may-be-related-to-that-the-decreased-TT3-induced-sub-clinical-hypothyroidism.

  8. Proliferation in cycle

    Piao Yunsong [College of Physical Sciences, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], E-mail: yspiao@gucas.ac.cn

    2009-06-15

    In the contracting phase with w{approx_equal}0, the scale invariant spectrum of curvature perturbation is given by the increasing mode of metric perturbation. In this Letter, it is found that if the contracting phase with w{approx_equal}0 is included in each cycle of a cycle universe, since the metric perturbation is amplified on super horizon scale cycle by cycle, after each cycle the universe will be inevitably separated into many parts independent of one another, each of which corresponds to a new universe and evolves up to next cycle, and then is separated again. In this sense, a cyclic multiverse scenario is actually presented, in which the universe proliferates cycle by cycle. We estimate the number of new universes proliferated in each cycle, and discuss the implications of this result.

  9. JPRS Report, Proliferation Issues

    2016-03-24

    TECHNICAL INFORMATION SERVICE SPRINGFIELD, VA 22161 PROLIFERATION ISSUES JPRS-TND-93-011 CONTENTS 23 April 1993 [This report contains foreign media ...in English 1432 GMT 19 Apr 93 Both Qian and Han are here to attend the 49th annual session of the UN Economic and Social Commission [Text] Chengdu...symposium held at a countries, its bad habit of the cold war era. Tokyo hotel on plutonium and the destruction of nuclear weapons, said he hopes proposals

  10. JPRS Report: Proliferation Issues

    2016-03-24

    foreign media information on issues related to worldwide proliferation and transfer activities in nuclear, chemical, and biological weapons, including...Domestic Service in English 1215 GMT 28 Dec 92 As China has shown enormous market potential in its economic reform and opening to the outside world...CIS commander-in-chief, social and legal guarantees of military Reports on Minsk Summit on Strategic Forces observers and peace-keepers, as well as

  11. Anterior internal lenticonus accompanied by congenital nuclear cataract

    LIU Zhe; SUN Chuan-bin; YAO Ke

    2011-01-01

    Internal lenticonus is a very rare morphologic abnormality of crystalline lens which has been reported in only several cases in the literature.We herein reported the clinical characteristics and surgical findings of the anterior internal lenticonus accompanied by congenital nuclear cataract.Cataract extraction accompanied with intraocular lens implantation was uneventfully performed,and a good visual outcome was achieved in this case.Viral infection during embryonal and fetal period might account for the formation of the anterior internal lenticonus and congenital nuclear cataract in our case.

  12. TMJ degeneration in SAMP8 mice is accompanied by deranged Ihh signaling.

    Ishizuka, Y; Shibukawa, Y; Nagayama, M; Decker, R; Kinumatsu, T; Saito, A; Pacifici, M; Koyama, E

    2014-03-01

    The temporomandibular joint (TMJ) functions as a load-bearing diarthrodial joint during mastication, and its continuous use and stress can lead to degeneration over age. Using senescence-accelerated (SAMP8) mice that develop early osteoarthritis-like changes in synovial joints at high frequency, we analyzed possible molecular mechanisms of TMJ degeneration and tested whether and how malocclusion may accelerate it. Condylar articular cartilage in young SAMP8 mice displayed early-onset osteoarthritic changes that included reductions in superficial/chondroprogenitor cell number, proteoglycan/collagen content, and Indian hedgehog (Ihh)-expressing chondrocytes. Following malocclusion induced by tooth milling, the SAMP8 condyles became morphologically defective, displayed even lower proteoglycan levels, and underwent abnormal chondrocyte maturation compared with malocclusion-treated condyles in wild-type mice. Malocclusion also induced faster progression of pathologic changes with increasing age in SAMP8 condyles as indicated by decreased PCNA-positive proliferating chondroprogenitors and increased TUNEL-positive apoptotic cells. These changes were accompanied by steeper reductions in Ihh signaling and by expression of matrix metalloproteinase 13 at the chondro-osseous junction in SAMP8 articular cartilage. In sum, we show for the first time that precocious TMJ degeneration in SAMP8 mice is accompanied by--and possibly attributable to--altered Ihh signaling and that occlusal dysfunction accelerates progression toward degenerative TMJ disease in this model.

  13. Initiatives for proliferation prevention

    NONE

    1997-04-01

    Preventing the proliferation of weapons of mass destruction is a central part of US national security policy. A principal instrument of the Department of Energy`s (DOE`s) program for securing weapons of mass destruction technology and expertise and removing incentives for scientists, engineers and technicians in the newly independent states (NIS) of the former Soviet Union to go to rogue countries or assist terrorist groups is the Initiatives for Proliferation Prevention (IPP). IPP was initiated pursuant to the 1994 Foreign Operations Appropriations Act. IPP is a nonproliferation program with a commercialization strategy. IPP seeks to enhance US national security and to achieve nonproliferation objectives by engaging scientists, engineers and technicians from former NIS weapons institutes; redirecting their activities in cooperatively-developed, commercially viable non-weapons related projects. These projects lead to commercial and economic benefits for both the NIS and the US IPP projects are funded in Russian, Ukraine, Kazakhstan and Belarus. This booklet offers an overview of the IPP program as well as a sampling of some of the projects which are currently underway.

  14. Teacher's Manual to Accompany "How to Get a Job."

    Webster, John D.

    Prepared for teachers of mentally handicapped students, this teacher's guide accompanies the student booklet, "How to Get A Job," and contains suggestions for learning activities and vocabulary development for each subdivision of all four major units in the student booklet: choosing the right kind of work, looking for the job, going on an…

  15. Hypertrophic pachymeningitis accompanying neuromyelitis optica spectrum disorder: A case report.

    Kon, Tomoya; Nishijima, Haruo; Haga, Rie; Funamizu, Yukihisa; Ueno, Tatsuya; Arai, Akira; Suzuki, Chieko; Nunomura, Jin-ichi; Baba, Masayuki; Takahashi, Toshiyuki; Tomiyama, Masahiko

    2015-10-15

    We report a case of idiopathic cerebral hypertrophic pachymeningitis accompanying neuromyelitis optica spectrum disorder. No other identifiable cause of pachymeningitis was detected. Corticosteroid therapy was effective for both diseases. Hypertrophic pachymeningitis is closely related to autoimmune inflammatory disease of the central nervous system. This case supports the hypothesis that hypertrophic pachymeningitis can be a rare comorbidity of neuromyelitis optica spectrum disorder.

  16. Critical thinking of student nurses during clinical accompaniment

    BY Uys

    2005-09-01

    Full Text Available The purpose of this study was to investigate the methods of clinical accompaniment used by clinical facilitators in practice. The findings of the study also reflected facilitators’ perceptions regarding critical thinking and the facilitation thereof. A quantitative research design was used. A literature study was conducted to identify the methods of accompaniment that facilitate critical thinking. Data was collected by means of a questionnaire developed for that purpose. Making a content-related validity judgment, and involving seven clinical facilitators in an academic institution, ensured the validity of the questionnaire. The results of the study indicated that various clinical methods of accompaniment were used. To a large extent, these methods correlated with those discussed in the literature review. The researcher further concluded that the concepts ‘critical thinking’ and ‘facilitation’ were not interpreted correctly by the respondents, and would therefore not be implemented in a proper manner in nursing practice. Furthermore, it seemed evident that tutor-driven learning realised more often than student-driven learning. In this regard, the requirement of outcomes-based education was not satisfied. The researcher is therefore of the opinion that a practical programme for the development of critical thinking skills during clinical accompaniment must be developed within the framework of outcomes-based education.

  17. 29 CFR 575.5 - Supporting data to accompany application.

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Supporting data to accompany application. 575.5 Section 575.5 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAIVER OF CHILD LABOR PROVISIONS FOR AGRICULTURAL EMPLOYMENT OF 10 AND 11 YEAR OLD MINORS IN...

  18. 9 CFR 93.208 - Articles accompanying poultry.

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Articles accompanying poultry. 93.208... AGRICULTURE EXPORTATION AND IMPORTATION OF ANIMALS (INCLUDING POULTRY) AND ANIMAL PRODUCTS IMPORTATION OF CERTAIN ANIMALS, BIRDS, FISH, AND POULTRY, AND CERTAIN ANIMAL, BIRD, AND POULTRY PRODUCTS;...

  19. Uncertainties in Nuclear Proliferation Modeling

    Kim, Chul Min; Yim, Man-Sung; Park, Hyeon Seok [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2015-05-15

    There have been various efforts in the research community to understand the determinants of nuclear proliferation and develop quantitative tools to predict nuclear proliferation events. Such systematic approaches have shown the possibility to provide warning for the international community to prevent nuclear proliferation activities. However, there are still large debates for the robustness of the actual effect of determinants and projection results. Some studies have shown that several factors can cause uncertainties in previous quantitative nuclear proliferation modeling works. This paper analyzes the uncertainties in the past approaches and suggests future works in the view of proliferation history, analysis methods, and variable selection. The research community still lacks the knowledge for the source of uncertainty in current models. Fundamental problems in modeling will remain even other advanced modeling method is developed. Before starting to develop fancy model based on the time dependent proliferation determinants' hypothesis, using graph theory, etc., it is important to analyze the uncertainty of current model to solve the fundamental problems of nuclear proliferation modeling. The uncertainty from different proliferation history coding is small. Serious problems are from limited analysis methods and correlation among the variables. Problems in regression analysis and survival analysis cause huge uncertainties when using the same dataset, which decreases the robustness of the result. Inaccurate variables for nuclear proliferation also increase the uncertainty. To overcome these problems, further quantitative research should focus on analyzing the knowledge suggested on the qualitative nuclear proliferation studies.

  20. Proliferation: myth or reality?; La proliferation: mythe ou realite?

    NONE

    2005-07-01

    This article analyzes the proliferation approach, its technical condition and political motivation, and the share between the myth (political deception, assumptions and extrapolations) and the reality of proliferation. Its appreciation is complicated by the irrational behaviour of some political actors and by the significant loss of the non-use taboo. The control of technologies is an important element for proliferation slowing down but an efficient and autonomous intelligence system remains indispensable. (J.S.)

  1. Adult-Onset Acquired Partial Lipodystrophy Accompanied by Rheumatoid Arthritis

    Yusuke Muto

    2015-04-01

    Full Text Available Lipodystrophy is a group of metabolic disorders, possibly caused by autoimmune disease. In this report, we describe a case of adult-onset acquired partial lipodystrophy accompanied by rheumatoid arthritis without a family history. Interestingly, immunohistochemical staining revealed dense infiltration of IL-27-producing cells as well as MMP-7- and MMP-28-expressing cells, both of which have been reported to facilitate the development of autoimmune disease. Our present case might suggest possible mechanisms for acquired partial lipodystrophy.

  2. Right Lung Agenesis; Isolated and with Accompanied Anomalies

    Yakup Canıtez

    2013-12-01

    Full Text Available Right lung agenesis is a rare anomaly that can be isolated or accompanied by system anomalies such as cardiac, skeletal or urinary systems. Case 1, a four-month-old girl, was brought because of respiratory distress. Patient had polydactyly, syndactyly of right thumb, right mandibular hypoplasia and low-set dysmorphic ears. Lung x-ray and thorax computerized tomography (CT were consistent with right pulmonary agenesis and butterfly vertebra was evident in the 7th thoracic level. Thoracic CT angiography revealed narrowing of the left main bronchus and esophagus due to compression of aorta, left pulmonary artery and right atrium. In bronchoscopy, narrowing due to compression at the carina level was seen and right main bronchus was not seen. In abdominal ultrasonography, right kidney placement anomaly (pelvic ectopia was present and renal scintigraphy revealed fusion in both kidneys. With these findings, it was found that right pulmonary agenesis was accompanied by ipsilateral radial ray anomaly, renal anomaly, vertebral anomaly and hemifacial microsomia. Case 2, a fifteen-year-old male patient, was diagnosed as pulmonary agenesis via chest x-ray, pulmonary CT and bronchoscopy after a wheezing episode when he was 2 months old. Patient had no complaint except for exhaustion that is aggravated by exercise during last year. In physical examination, he had a mild scoliosis toward right, respiratory sounds were diminished on right hemithorax and heart sounds were heard on right side. Chest x-ray and thoracic CT were consistent with right lung agenesis. No abnormality was found in echocardiography and abdominal ultrasonography was normal. Accompanied cardiovascular anomalies, distortions of intrathoracic structures and recurrent infections are main factors that affect mortality and morbidity. Here, two cases with right lung agenesis, isolated and accompanied by multiple anomalies, were presented. (Jo­ur­nal of Cur­rent Pe­di­at­rics 2013; 11: 134-7

  3. A case of peribiliary cysts accompanying bile duct carcinoma

    Fumihiko Miura; Tadahiro Takada; Hodaka Amano; Masahiro Yoshida; Takahiro Isaka; Naoyuki Toyota; Keita Wada; Kenji Takagi; Kenichiro Karo

    2006-01-01

    A rare case of peribiliary cysts accompaying bile duct carcinoma is presented. A 54-year-old man was diagnosed as having lower bile duct carcinoma and peribiliary cysts by diagnostic imaging. He underwent pylorus preserving pancreatoduodenectomy. As for the peribiliary cysts, a course of observation was taken.Over surgery due to misdiagnosis of patients with biliary malignancy accompanied by peribiliary cysts should be avoided.

  4. Klinefelter's syndrome accompanied by diabetes mellitus and diabetes insipidus.

    Isobe, K; Niwa, T; Ohkubo, M; Ohba, M; Shikano, M; Watanabe, Y

    1992-07-01

    The first case of Klinefelter's syndrome accompanied by diabetes insipidus and diabetes mellitus is reported. A 41-year-old man admitted for hyperosmolar diabetic coma with a past history of diabetes insipidus was diagnosed as having Klinefelter's syndrome by endocrinological examination and sex chromosome analysis. In this case, glucose tolerance test was normalized half a year later and blood glucose was well controlled with diet therapy alone.

  5. The Raven,a Loner’s Psychological Accompanier

    商滔

    2015-01-01

    Edgar Allan Poe’s The Raven is well-known to the world for its detailed psychological descriptions in the author’s eyes of this essay.Whereas,the Raven is the only one accompanier and the best listener listening to Poe’s psychological cry for his lover.The author will try to present the scene of the sadness from Poe by employing Carl G.Jung’s theories about consciousness and unconsciousness.

  6. The Raven,a Loner’s Psychological Accompanier

    商滔

    2015-01-01

    Edgar Allan Poe’s The Raven is well-known to the world for its detailed psychological descriptions in the author’s eyes of this essay.Whereas,the Raven is the only one accompanie and the best listener listening to Poe’s psychological cry for his lover.The author will try to present the scene of the sadness from Poe by employing Carl G.Jung’s theories about consciousness and unconsciousness.

  7. Real-time implementation of an interactive jazz accompaniment system

    Deshpande, Nikhil

    Modern computational algorithms and digital signal processing (DSP) are able to combine with human performers without forced or predetermined structure in order to create dynamic and real-time accompaniment systems. With modern computing power and intelligent algorithm layout and design, it is possible to achieve more detailed auditory analysis of live music. Using this information, computer code can follow and predict how a human's musical performance evolves, and use this to react in a musical manner. This project builds a real-time accompaniment system to perform together with live musicians, with a focus on live jazz performance and improvisation. The system utilizes a new polyphonic pitch detector and embeds it in an Ableton Live system - combined with Max for Live - to perform elements of audio analysis, generation, and triggering. The system also relies on tension curves and information rate calculations from the Creative Artificially Intuitive and Reasoning Agent (CAIRA) system to help understand and predict human improvisation. These metrics are vital to the core system and allow for extrapolated audio analysis. The system is able to react dynamically to a human performer, and can successfully accompany the human as an entire rhythm section.

  8. Test bank to accompany Computers data and processing

    Deitel, Harvey M

    1980-01-01

    Test Bank to Accompany Computers and Data Processing provides a variety of questions from which instructors can easily custom tailor exams appropriate for their particular courses. This book contains over 4000 short-answer questions that span the full range of topics for introductory computing course.This book is organized into five parts encompassing 19 chapters. This text provides a very large number of questions so that instructors can produce different exam testing essentially the same topics in succeeding semesters. Three types of questions are included in this book, including multiple ch

  9. Bronchial Sparganosis mansoni accompanied by abnormal hyperplasia diagnosed by bronchoscopy

    BAI Jing; HE Zhi-yi; LIU Guang-nan; ZHANG Jian-quan; DENG Jing-min; LI Mei-hua; ZHONG Xiao-ning

    2012-01-01

    Pulmonary sparganosis mansoni is rare in humans and bronchial sparganosis mansoni has not been reported.We reported a patient with a soft-tissue mass in the right hilum area on a chest computed tomography (CT) scan that was suspected of being lung cancer.Bronchoscopy identified sparganum larvae.Bronchial sparganosis mansoni accompanied by abnormal hyperplasia was diagnosed by histopathology.We introduced our experience and reviewed the clinical characteristics of three pulmonary sparganosis mansoni cases and three pleural cavity sparganosis mansoni cases that have been reoorted.

  10. Optic Neuritis Associated with Myelodysplastic Syndrome Accompanied by Eosinophilic Crisis.

    Nagasaki, Joji; Nishimoto, Mitsutaka; Nakamae, Hirohisa; Nakane, Takahiko; Koh, Hideo; Yoshimoto, Kumiko; Shiraki, Kunihiko; Hino, Masayuki

    2015-01-01

    Myelodysplastic syndrome (MDS) was diagnosed in a 64-year-old man. Three months later, he presented with right-sided visual loss. A diagnosis of optic neuritis caused by both ischemic and non-ischemic changes was established. Concurrently, prominent eosinophilia was seen in both the peripheral blood and bone marrow. A partial improvement of visual loss was obtained concomitant with a rapid decrease of the eosinophils after treatment with corticosteroids. Optic neuritis related to MDS is a rare condition and its etiology has not yet been identified. We herein report a case of optic neuritis associated with MDS and accompanied by an eosinophilic crisis.

  11. Study guide to accompany computers data and processing

    Deitel, Harvey M

    1985-01-01

    Study Guide to Accompany Computer and Data Processing provides information pertinent to the fundamental aspects of computers and computer technology. This book presents the key benefits of using computers.Organized into five parts encompassing 19 chapters, this book begins with an overview of the evolution of modern computing systems from the earliest mechanical calculating devices to microchips. This text then introduces computer hardware and describes the processor. Other chapters describe how microprocessors are made and describe the physical operation of computers. This book discusses as w

  12. Mucocele Accompanied by a Traumatic Neuroma: A Case Report

    Jaafari Ashkavandi Z.

    2013-03-01

    Full Text Available Mucocele and traumatic neuroma are two lesions related to the traumatic events; however there is only one reported case in which these two entities were perceived simultaneously. The current study reported a 21-year-old man who complained of painless recurrent swelling, accompanied by paresthesia on his left lower labial mucosa. He had a previous history of similar lesion and had been treated with surgery and cauterization last year. The primary clinical impression was a recurrent mucocele. Microscopic surveys displayed a traumatic neuroma in the vicinity of a mucocele which seems to be arising from the previous surgical treatment.

  13. Persistent Postconcussive Symptoms Are Accompanied by Decreased Functional Brain Oxygenation.

    Helmich, Ingo; Saluja, Rajeet S; Lausberg, Hedda; Kempe, Mathias; Furley, Philip; Berger, Alisa; Chen, Jen-Kai; Ptito, Alain

    2015-01-01

    Diagnostic methods are considered a major concern in the determination of mild traumatic brain injury. The authors examined brain oxygenation patterns in subjects with severe and minor persistent postconcussive difficulties and a healthy control group during working memory tasks in prefrontal brain regions using functional near-infrared spectroscopy. The results demonstrated decreased working memory performances among concussed subjects with severe postconcussive symptoms that were accompanied by decreased brain oxygenation patterns. An association appears to exist between decreased brain oxygenation, poor performance of working memory tasks, and increased symptom severity scores in subjects suffering from persistent postconcussive symptoms.

  14. Solutions manual to accompany finite mathematics models and applications

    Morris, Carla C

    2015-01-01

    A solutions manual to accompany Finite Mathematics: Models and Applications In order to emphasize the main concepts of each chapter, Finite Mathematics: Models and Applications features plentiful pedagogical elements throughout such as special exercises, end notes, hints, select solutions, biographies of key mathematicians, boxed key principles, a glossary of important terms and topics, and an overview of use of technology. The book encourages the modeling of linear programs and their solutions and uses common computer software programs such as LINDO. In addition to extensive chapters on pr

  15. Value-sensitive clinical accompaniment in community nursing science

    Ebin Arries

    2010-03-01

    Full Text Available Clinical community health facilities where undergraduate students are placed for their practical work in community nursing science are dynamic and have undergone major transformation over the past few years. In the clinical field, community nurses and undergraduate students are representative of the different races and language and ethnic groups in the South African population, with each group espousing different value systems. Both parties – students and community nurses – report that, due to these differences, value conflicts are experienced during clinical accompaniment and that this has negative effects on clinical learning in community nursing science.

    The goal of this study was to explore and describe the experiences of students with regard to value-sensitive clinical accompaniment in the community nursing environment. An exploratory, descriptive and contextual design was used. Interactions between community nurses and students during clinical accompaniment were explored for value sensitivity by means of video recordings,participant observation and focus group interviews. Data were collected by means of video recordings, participant observation and focus group interviews. The data were analysed and coded by the researcher and the external coder, using an inductive descriptive method to identify important segments of the regularity of behaviour. The focus group interviews were transcribed, analysed and coded by the researcher and the external coder, using Tesch’s steps of analysis (Creswell 1994:155–156.Lincoln and Guba’s criteria (1985:290 for trustworthiness were applied to the study.

    The general findings indicate that clinical accompaniment in community nursing is not value sensitive and, as a result, guidelines for value-sensitive clinical accompaniment need to be developed for undergraduate students in the community nursing environment. The following values (values for which guidelines need to be developed were

  16. Middleware Design for Swarm-Driving Robots Accompanying Humans.

    Kim, Min Su; Kim, Sang Hyuck; Kang, Soon Ju

    2017-02-17

    Research on robots that accompany humans is being continuously studied. The Pet-Bot provides walking-assistance and object-carrying services without any specific controls through interaction between the robot and the human in real time. However, with Pet-Bot, there is a limit to the number of robots a user can use. If this limit is overcome, the Pet-Bot can provide services in more areas. Therefore, in this study, we propose a swarm-driving middleware design adopting the concept of a swarm, which provides effective parallel movement to allow multiple human-accompanying robots to accomplish a common purpose. The functions of middleware divide into three parts: a sequence manager for swarm process, a messaging manager, and a relative-location identification manager. This middleware processes the sequence of swarm-process of robots in the swarm through message exchanging using radio frequency (RF) communication of an IEEE 802.15.4 MAC protocol and manages an infrared (IR) communication module identifying relative location with IR signal strength. The swarm in this study is composed of the master interacting with the user and the slaves having no interaction with the user. This composition is intended to control the overall swarm in synchronization with the user activity, which is difficult to predict. We evaluate the accuracy of the relative-location estimation using IR communication, the response time of the slaves to a change in user activity, and the time to organize a network according to the number of slaves.

  17. Treatment of lingual traumatic ulcer accompanied with fungal infections

    Sella Sella

    2011-09-01

    Full Text Available Background: Traumatic ulcer is a common form of ulceration occured in oral cavity caused by mechanical trauma, either acute or chronic, resulting in loss of the entire epithelium. Traumatic ulcer often occurs in children that are usually found on buccal mucosa, labial mucosa of upper and lower lip, lateral tongue, and a variety of areas that may be bitten. To properly diagnose the ulcer, dentists should evaluate the history and clinical description in detail. If the lesion is allegedly accompanied by other infections, such as fungal, bacterial or viral infections, microbiological or serological tests will be required. One of the initial therapy given for fungal infection is nystatin which aimed to support the recovery and repair processes of epithelial tissue in traumatic ulcer case. Purpose: This case report is aimed to emphasize the importance of microbiological examination in suspected cases of ulcer accompanied with traumatic fungal infection. Case: A 12-year-old girl came to the clinic of Pediatric Dentistry, Faculty of Dentistry, University of Indonesia on June 9, 2011 accompanied with her mother. The patient who had a history of geographic tongue came with complaints of injury found in the middle of the tongue. The main diagnosis was ulcer accompanied with traumatic fungal infection based on the results of swab examination. Case management: This traumatic ulcer case was treated with Dental Health Education, oral prophylaxis, as well as prescribing and usage instructions of nystatin. The recovery and repair processes of mucosal epithelium of the tongue then occured after the use of nystatin. Conclusion: It can be concluded that microbiological examination is important to diagnose suspected cases of ulcer accompanied with traumatic fungal infection. The appropriate treatment such as nystatin can be given for traumatic fungal infection.Latar belakang: Ulkus traumatic merupakan bentuk umum dari ulserasi rongga mulut yang terjadi akibat trauma

  18. 19 CFR 133.24 - Restrictions on articles accompanying importer and mail importations.

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Restrictions on articles accompanying importer and... accompanying importer and mail importations. (a) Detention. Articles accompanying an importer and mail... given in the following manner: (1) Articles accompanying importer. When the articles are carried...

  19. Cell proliferation in gastrointestinal mucosa.

    Wong, W M; Wright, N A

    1999-01-01

    Gastrointestinal cell proliferation plays an important role in the maintenance of the integrity of the gastrointestinal system. The study of gastrointestinal proliferation kinetics allows a better understanding of the complexity of the system, and also has important implications for the study of gastrointestinal carcinogenesis. Gastrointestinal stem cells are shown to be pluripotential and to give rise to all cell lineages in the epithelium. Carcinogenesis in the colon occurs through sequenti...

  20. Cytosolic DNA Sensor Upregulation Accompanies DNA Electrotransfer in B16.F10 Melanoma Cells.

    Znidar, Katarina; Bosnjak, Masa; Cemazar, Maja; Heller, Loree C

    2016-06-07

    In several preclinical tumor models, antitumor effects occur after intratumoral electroporation, also known as electrotransfer, of plasmid DNA devoid of a therapeutic gene. In mouse melanomas, these effects are preceded by significant elevation of several proinflammatory cytokines. These observations implicate the binding and activation of intracellular DNA-specific pattern recognition receptors or DNA sensors in response to DNA electrotransfer. In tumors, IFNβ mRNA and protein levels significantly increased. The mRNAs of several DNA sensors were detected, and DAI, DDX60, and p204 tended to be upregulated. These effects were accompanied with reduced tumor growth and increased tumor necrosis. In B16.F10 cells in culture, IFNβ mRNA and protein levels were significantly upregulated. The mRNAs for several DNA sensors were present in these cells; DNA-dependent activator of interferon regulatory factor (DAI), DEAD (Asp-Glu-Ala-Asp) box polypeptide 60 (DDX60), and p204 were significantly upregulated while DDX60 protein levels were coordinately upregulated. Upregulation of DNA sensors in tumors could be masked by the lower transfection efficiency compared to in vitro or to dilution by other tumor cell types. Mirroring the observation of tumor necrosis, cells underwent a significant DNA concentration-dependent decrease in proliferation and survival. Taken together, these results indicate that DNA electrotransfer may cause the upregulation of several intracellular DNA sensors in B16.F10 cells, inducing effects in vitro and potentially in vivo.

  1. ACCOMPANYING THERAPY IN PATIENTS AFTER ENDOSCOPIC LARYNGEAL SURGERY

    E. N. Novozhilova

    2014-01-01

    Full Text Available The paper describes the experience with accompanying therapy in patients after endoscopic laryngeal surgery, which has been gained at the Unit of Head and Neck Tumors, Moscow City Cancer Hospital Sixty-Two. Endolaryngeal operations have been performed using robotic CO2 laser and alternative modes of mechanical ventilation. Methods for abolishing laser-induced reactive tissue changes with different groups of pharmaceuticals are considered. Both the possible side effects of some drugs and their potential interaction are taken into account. The high efficacy of current inhalation systems (PARI delivering the required doses of medicaments over a short period of time and with minimal losses and regulating their dispersion in relation to the drug used is noted.

  2. [Aspects of psychotherapy in diabetes mellitus with accompanying alcoholic intoxication].

    Sidorov, P I; Novikova, I A; Solov'ev, A G

    2001-01-01

    120 patients with different types of diabetes mellitus were divided into groups by the presence and intensity of accompanying alcoholic intoxication: group 1--no alcohol intake; group 2--rare alcohol intake; group 3--moderate alcohol intake; group 4--alcoholic abuse. Experimental psychological methods were used together with psychotherapeutic approaches: Wiesbaden's questionnaire (WIPPF), Lusher's and MMPI tests. For each group of the patients some recommendations are given for application of the above techniques. Thus in patients from the 1-3 groups it is worthwhile to perform a positive psychotherapy directed to the development of the body/sensation sphere (according to WIPPF), that is a care about physical and mental state (including autotraining and training of communication). In the alcohol abusing patients the main point should be fantasy/future sphere (according to WIPPF) in the ranges of the same positive psychotherapy directed to forming positive world view and correction of the interpersonal relations.

  3. Thermal expansion accompanying the glass-liquid transition and crystallization

    M. Q. Jiang

    2015-12-01

    Full Text Available We report the linear thermal expansion behaviors of a Zr-based (Vitreloy 1 bulk metallic glass in its as-cast, annealed and crystallized states. Accompanying the glass-liquid transition, the as-cast Vitreloy 1 shows a continuous decrease in the thermal expansivity, whereas the annealed glass shows a sudden increase. The crystallized Vitreloy 1 exhibits an almost unchanged thermal expansivity prior to its melting. Furthermore, it is demonstrated that the nucleation of crystalline phases can induce a significant thermal shrinkage of the supercooled liquid, but with the growth of these nuclei, the thermal expansion again dominates. These results are explained in the framework of the potential energy landscape, advocating that the configurational and vibrational contributions to the thermal expansion of the glass depend on both, structure and temperature.

  4. Transient positive and negative experiences accompanying stage hypnosis.

    Crawford, H J; Kitner-Triolo, M; Clarke, S W; Olesko, B

    1992-11-01

    Frequency of positive and negative experiences accompanying stage hypnosis was assessed in follow-up interviews with 22 participants of university-sponsored performances. Most subjects described their experience positively (relaxing, interesting, exciting, satisfying, illuminating, and pleasurable), but some described it negatively (confusing, silly, annoying, and frightening). Five subjects (22.7%) reported partial or complete amnesia; all were highly responsive to the stage hypnosis suggestions. One subject was completely unable to breach amnesia and felt annoyed and frightened. Five subjects (22.7%) believed the hypnotist had control over their behavior. Participants (n = 15) tested subsequently on the Stanford Hypnotic Susceptibility Scale, Form C (Weitzenhoffer & Hilgard, 1962) were mostly moderately to highly hypnotizable (M = 7.07), and the scores correlated significantly (r = .68) with the percentage of passed stage hypnosis suggestions.

  5. Middleware Design for Swarm-Driving Robots Accompanying Humans

    Kim, Min Su; Kim, Sang Hyuck; Kang, Soon Ju

    2017-01-01

    Research on robots that accompany humans is being continuously studied. The Pet-Bot provides walking-assistance and object-carrying services without any specific controls through interaction between the robot and the human in real time. However, with Pet-Bot, there is a limit to the number of robots a user can use. If this limit is overcome, the Pet-Bot can provide services in more areas. Therefore, in this study, we propose a swarm-driving middleware design adopting the concept of a swarm, which provides effective parallel movement to allow multiple human-accompanying robots to accomplish a common purpose. The functions of middleware divide into three parts: a sequence manager for swarm process, a messaging manager, and a relative-location identification manager. This middleware processes the sequence of swarm-process of robots in the swarm through message exchanging using radio frequency (RF) communication of an IEEE 802.15.4 MAC protocol and manages an infrared (IR) communication module identifying relative location with IR signal strength. The swarm in this study is composed of the master interacting with the user and the slaves having no interaction with the user. This composition is intended to control the overall swarm in synchronization with the user activity, which is difficult to predict. We evaluate the accuracy of the relative-location estimation using IR communication, the response time of the slaves to a change in user activity, and the time to organize a network according to the number of slaves. PMID:28218650

  6. Soundtracks to Accompany Visualizations of Nuclear Pasta Simulations

    Clark, Emily

    2014-09-01

    Nuclear pasta is a substance found in neutron stars and core-collapse supernovae, arising at the extreme densities near nuclear saturation, when the attractive nuclear and repulsive coulomb forces mold the dense sea of protons and neutrons into shapes such as spheres, tubes, and slabs, which somewhat resemble different types of pasta. The structures are analyzed using molecular dynamical simulations for different proton fractions, temperatures, densities, and number of nucleons. The system is stressed by stretching it, squeezing it, or subjecting it to some outside force. In order to obtain a more complete representation of how the nuclear pasta responds, sound tracks were produced to accompany videos of stretching simulations. The audio tracks were made by assuming sound waves are produced from changes in the nucleon density. This density was calculated within a small region at frequent time intervals during the run. The resulting sound track was then synced with a video of the run in order to emphasize the development of the system as the pasta moves and breaks. Nuclear pasta is a substance found in neutron stars and core-collapse supernovae, arising at the extreme densities near nuclear saturation, when the attractive nuclear and repulsive coulomb forces mold the dense sea of protons and neutrons into shapes such as spheres, tubes, and slabs, which somewhat resemble different types of pasta. The structures are analyzed using molecular dynamical simulations for different proton fractions, temperatures, densities, and number of nucleons. The system is stressed by stretching it, squeezing it, or subjecting it to some outside force. In order to obtain a more complete representation of how the nuclear pasta responds, sound tracks were produced to accompany videos of stretching simulations. The audio tracks were made by assuming sound waves are produced from changes in the nucleon density. This density was calculated within a small region at frequent time intervals

  7. Radio rebrightening of the GRB afterglow by the accompanying supernova

    Duran, Rodolfo Barniol

    2015-01-01

    The gamma-ray burst (GRB) jet powers the afterglow emission by shocking the surrounding medium, and radio afterglow can now be routinely observed to almost a year after the explosion. Long-duration GRBs are accompanied by supernovae (SNe) that typically contain much more energy than the GRB jet. Here we consider the fact that the SN blast wave will also produce its own afterglow, which will peak at much later time (since it is non-relativistic), when the SN blast wave transitions from a coasting phase to a decelerating Sedov-Taylor phase. We predict that this component will peak generally a few tens of years after the explosion and it will outshine the GRB powered afterglow well-before its peak emission. In the case of GRB 030329, where the external density is constrained by the $\\sim 10$-year coverage of the radio GRB afterglow, the radio emission is predicted to start rising over the next decade and to continue to increase for the following decades up to a level of $\\sim 0.5$ mJy. Detection of the SN-powere...

  8. Massively augmented hippocampal dentate granule cell activation accompanies epilepsy development

    Dengler, Christopher G.; Yue, Cuiyong; Takano, Hajime; Coulter, Douglas A.

    2017-01-01

    In a mouse model of temporal lobe epilepsy, multicellular calcium imaging revealed that disease emergence was accompanied by massive amplification in the normally sparse, afferent stimulation-induced activation of hippocampal dentate granule cells. Patch recordings demonstrated reductions in local inhibitory function within the dentate gyrus at time points where sparse activation was compromised. Mimicking changes in inhibitory synaptic function and transmembrane chloride regulation was sufficient to elicit the dentate gyrus circuit collapse evident during epilepsy development. Pharmacological blockade of outward chloride transport had no effect during epilepsy development, and significantly increased granule cell activation in both control and chronically epileptic animals. This apparent occlusion effect implicates reduction in chloride extrusion as a mechanism contributing to granule cell hyperactivation specifically during early epilepsy development. Glutamine plays a significant role in local synthesis of GABA in synapses. In epileptic mice, sparse granule cell activation could be restored by glutamine application, implicating compromised GABA synthesis. Glutamine had no effect on granule cell activation earlier, during epilepsy development. We conclude that compromised feedforward inhibition within the local circuit generates the massive dentate gyrus circuit hyperactivation evident in animals during and following epilepsy development. However, the mechanisms underlying this disinhibition diverge significantly as epilepsy progresses. PMID:28218241

  9. Heat transfer enhancement accompanying Leidenfrost state suppression at ultrahigh temperatures.

    Shahriari, Arjang; Wurz, Jillian; Bahadur, Vaibhav

    2014-10-14

    The well-known Leidenfrost effect is the formation of a vapor layer between a liquid and an underlying hot surface. This insulating vapor layer severely degrades heat transfer and results in surface dryout. We measure the heat transfer enhancement and dryout prevention benefits accompanying electrostatic suppression of the Leidenfrost state. Interfacial electric fields in the vapor layer can attract liquid toward the surface and promote wetting. This principle can suppress dryout even at ultrahigh temperatures exceeding 500 °C, which is more than 8 times the Leidenfrost superheat for organic solvents. Robust Leidenfrost state suppression is observed for a variety of liquids, ranging from low electrical conductivity organic solvents to electrically conducting salt solutions. Elimination of the vapor layer increases heat dissipation capacity by more than 1 order of magnitude. Heat removal capacities exceeding 500 W/cm(2) are measured, which is 5 times the critical heat flux (CHF) of water on common engineering surfaces. Furthermore, the heat transfer rate can be electrically controlled by the applied voltage. The underlying science is explained via a multiphysics analytical model which captures the coupled electrostatic-fluid-thermal transport phenomena underlying electrostatic Leidenfrost state suppression. Overall, this work uncovers the physics underlying dryout prevention and demonstrates electrically tunable boiling heat transfer with ultralow power consumption.

  10. Melatonin production accompanies arousal from daily torpor in Siberian hamsters.

    Larkin, Jennie E; Yellon, Steven M; Zucker, Irving

    2003-01-01

    Arousal from deep hibernation is accompanied by a transient rise of melatonin (Mel) in circulation; there are no comparable analyses of Mel concentrations in species that undergo much shallower, shorter duration episodes of daily torpor. Serum Mel concentrations were determined during arousal from both natural daily torpor and torpor induced by 2-deoxy-D-glucose (2-DG) treatment (2,500 mg/kg, intraperitoneal [IP]); blood samples were drawn from the retro-orbital sinus of anesthetized Siberian hamsters. For animals kept in darkness during torpor, Mel concentrations were highest during early arousal when thermogenesis is maximal, and they decreased as body temperature increased during arousal and returned to baseline once euthermia was reestablished. In hamsters kept in the light during the torpor bout, Mel concentrations were elevated above basal values during arousal, but the response was significantly blunted in comparison with values recorded in darkness. Increased Mel concentrations were detected in hamsters only during arousal from torpor (either natural or 2-DG induced) and were not simply a result of the drug treatment; hamsters that remained euthermic or manifested mild hypothermia after drug treatment maintained basal Mel concentrations. We propose that increased Mel production may reflect enhanced sympathetic activation associated with intense thermogenesis during arousal from torpor rather than an adjustment of the circadian rhythm of Mel secretion.

  11. Nuclear Proliferation Technology Trends Analysis

    Zentner, Michael D.; Coles, Garill A.; Talbert, Robert J.

    2005-10-04

    A process is underway to develop mature, integrated methodologies to address nonproliferation issues. A variety of methodologies (both qualitative and quantitative) are being considered. All have one thing in common, a need for a consistent set of proliferation related data that can be used as a basis for application. One approach to providing a basis for predicting and evaluating future proliferation events is to understand past proliferation events, that is, the different paths that have actually been taken to acquire or attempt to acquire special nuclear material. In order to provide this information, this report describing previous material acquisition activities (obtained from open source material) has been prepared. This report describes how, based on an evaluation of historical trends in nuclear technology development, conclusions can be reached concerning: (1) The length of time it takes to acquire a technology; (2) The length of time it takes for production of special nuclear material to begin; and (3) The type of approaches taken for acquiring the technology. In addition to examining time constants, the report is intended to provide information that could be used to support the use of the different non-proliferation analysis methodologies. Accordingly, each section includes: (1) Technology description; (2) Technology origin; (3) Basic theory; (4) Important components/materials; (5) Technology development; (6) Technological difficulties involved in use; (7) Changes/improvements in technology; (8) Countries that have used/attempted to use the technology; (9) Technology Information; (10) Acquisition approaches; (11) Time constants for technology development; and (12) Required Concurrent Technologies.

  12. PMP27 PROMOTES PEROXISOMAL PROLIFERATION

    MARSHALL, PA; KRIMKEVICH, YI; LARK, RH; DYER, JM; VEENHUIS, M; GOODMAN, JM; Krimkevich, Yelena I.; Lark, Richard H.; Dyer, John M.; Goodman, Joel M.

    1995-01-01

    Peroxisomes perform many essential functions in eukaryotic cells. The weight of evidence indicates that these organelles divide by budding from preexisting peroxisomes. This process is not understood at the molecular level. Peroxisomal proliferation can be induced in Saccharomyces cerevisiae by olea

  13. Recombiant DNA and cell proliferation

    Stein, G.S.; Stein, J.L.

    1984-01-01

    This book contains 13 chapters. Some of the chapter titles are: Expression of Dihydrofolate Reductase and Thymidylate Synthase Genes in Mammalian Cells; Expression of Histone Genes during the Cell Cycle in Human Cells; Regulation of Nonmuscle Actin Gene Expression during Early Development; and Recombinant DNA Approaches to Studying Control of Cell Proliferation: An Overview.

  14. Hemiplegic peripheral neuropathy accompanied with multiple cranial nerve palsy

    Hirohisa Okuma

    2012-03-01

    Full Text Available A 32-year-old man experienced double vision around January, 2010, followed by weakness of his left upper and lower extremities. Articulation disorders and loss of hearing in his left ear developed, and he was admitted to our hospital on February 14, 2010. Physical examination was normal, and neurological examination showed clear consciousness with no impairment of cognitive function, but with articulation disorders. Olfactory sensation was reduced. Left ptosis and left gaze palsy, complete left facial palsy, perceptive deafness of the left ear, and muscle weakness of the left trapezius muscle were observed. Paresis in the left upper and lower extremities was graded 4/5 through manual muscle testing. Sensory system evaluation revealed complete left-side palsy, including the face. Deep tendon reflexes were slightly diminished equally on both sides; no pathologic reflex was seen. No abnormality of the brain parenchyma, cerebral nerves or cervicothoracolumbar region was found on brain magnetic resonance imaging. On electroencephalogram, alpha waves in the main frequency band of 8 to 9 Hz were recorded, indicating normal findings. Brain single photon emission computed tomography (SPECT scan showed reduced blood flow in the right inner frontal lobe and both occipital lobes. Nerve biopsy (left sural nerve showed reduction of nerve density by 30%, with demyelination. The patient also showed manifestations of multiple cranial nerve disorder, i.e., of the trigeminal nerve, glossopharyngeal nerve, vagus nerve, and hypoglossal nerve. Whole-body examination was negative. Finally, based on ischemic brain SPECT images, spinal fluid findings and nerve biopsy results, peripheral neuropathy accompanied with multiple cranial nerve palsy was diagnosed.

  15. EEG signatures accompanying auditory figure-ground segregation.

    Tóth, Brigitta; Kocsis, Zsuzsanna; Háden, Gábor P; Szerafin, Ágnes; Shinn-Cunningham, Barbara G; Winkler, István

    2016-11-01

    In everyday acoustic scenes, figure-ground segregation typically requires one to group together sound elements over both time and frequency. Electroencephalogram was recorded while listeners detected repeating tonal complexes composed of a random set of pure tones within stimuli consisting of randomly varying tonal elements. The repeating pattern was perceived as a figure over the randomly changing background. It was found that detection performance improved both as the number of pure tones making up each repeated complex (figure coherence) increased, and as the number of repeated complexes (duration) increased - i.e., detection was easier when either the spectral or temporal structure of the figure was enhanced. Figure detection was accompanied by the elicitation of the object related negativity (ORN) and the P400 event-related potentials (ERPs), which have been previously shown to be evoked by the presence of two concurrent sounds. Both ERP components had generators within and outside of auditory cortex. The amplitudes of the ORN and the P400 increased with both figure coherence and figure duration. However, only the P400 amplitude correlated with detection performance. These results suggest that 1) the ORN and P400 reflect processes involved in detecting the emergence of a new auditory object in the presence of other concurrent auditory objects; 2) the ORN corresponds to the likelihood of the presence of two or more concurrent sound objects, whereas the P400 reflects the perceptual recognition of the presence of multiple auditory objects and/or preparation for reporting the detection of a target object.

  16. Novel factors modulating human β-cell proliferation.

    Shirakawa, J; Kulkarni, R N

    2016-09-01

    β-Cell dysfunction in type 1 and type 2 diabetes is accompanied by a progressive loss of β-cells, and an understanding of the cellular mechanism(s) that regulate β-cell mass will enable approaches to enhance hormone secretion. It is becoming increasingly recognized that enhancement of human β-cell proliferation is one potential approach to restore β-cell mass to prevent and/or cure type 1 and type 2 diabetes. While several reports describe the factor(s) that enhance β-cell replication in animal models or cell lines, promoting effective human β-cell proliferation continues to be a challenge in the field. In this review, we discuss recent studies reporting successful human β-cell proliferation including WS6, an IkB kinase and EBP1 inhibitor; harmine and 5-IT, both DYRK1A inhibitors; GNF7156 and GNF4877, GSK-3β and DYRK1A inhibitors; osteoprotegrin and Denosmab, receptor activator of NF-kB (RANK) inhibitors; and SerpinB1, a protease inhibitor. These studies provide important examples of proteins and pathways that may prove useful for designing therapeutic strategies to counter the different forms of human diabetes.

  17. Increased nuclear ploidy, not cell proliferation, is sustained in the peroxisome proliferator-treated rat liver.

    Lalwani, N D; Dethloff, L A; Haskins, J R; Robertson, D G; de la Iglesia, F A

    1997-01-01

    Peroxisome proliferators are believed to induce liver tumors in rodents due to sustained increase in cell proliferation and oxidative stress resulting from the induction of peroxisomal enzymes. The objective of this study was to conduct a sequential analysis of the early changes in cell-cycle kinetics and the dynamics of rat liver DNA synthesis after treatment with a peroxisome proliferator. Immunofluorescent detection of proliferating cell nuclear antigen (PCNA) and bromodeoxyuridine (BrdU) incorporation into DNA during S phase we used to assess rat hepatocyte proliferation in vivo during dietary administration of Wy-14,643, a known peroxisome proliferator and hepatocarcinogen in rodents. Rats were placed on diet containing 0.1% WY-14,643 and implanted subcutaneously with 5-bromo-2'deoxyuridine containing osmotic pumps 4 days prior to being sacrificed on days 4, 11, and 25 of treatment. Isolated liver nuclei labeled with fluorscein isothiocyanate (FITC)-anti-BrdU/PI and FITC-anti-PCNA/PI were analyzed for S-phase kinetics using flow cytometry. Morphometric analysis was performed to evaluate nuclear and cell size and enumeration of BrdU labeled cells, binucleated hepatocytes, and mitotic index. The BrdU labeling index increased 2-fold in livers of Wy-14,643-treated rats at day 4, but distribution of cells in G1, S phase, and G2-M did not differ significantly from controls. PCNA-positive cells decreased from 36% on day 4 to 17% on day 25, whereas the percentage of PCNA-positive cells in controls increased 2-fold from day 4 to day 11 and remained unchanged up to day 25. The differences in the number of PCNA-positive nuclei between control and Wy-14,643-treated groups were statistically significant only on day 4. Binucleated hepatocytes, determined by morphometric analysis, increased slightly on day 25 in treated rats parallel to an increase in the percentage of cells in G2-M phase. Significant shifts were noted in nuclear diameter and nuclear area after 11 and 25

  18. NFAT5 promotes proliferation and migration of lung adenocarcinoma cells in part through regulating AQP5 expression

    Guo, Kai, E-mail: gk161@163.com [Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi' an 710038 (China); Department of Respiration, 161th Hospital, PLA, Wuhan 430015 (China); Jin, Faguang, E-mail: jinfag@fmmu.edu.cn [Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi' an 710038 (China)

    2015-09-25

    The osmoregulated transcription factor nuclear factor of activated T-cells 5(NFAT5), has been found to play important roles in the development of many kinds of human cancers, including breast cancer, colon carcinoma, renal cell carcinoma and melanoma. The aim of the present study was to determine whether NFAT5 is involved in the proliferation and migration of lung adenocarcinoma cells. We found that NFAT5 was upregulated in lung adenocarcinoma cells and knockdown of NFAT5 decreased proliferation and migration of the cells, accompanied by a significant reduction in the expression of AQP5. AQP5 was upregulated in lung adenocarcinoma cells and knockdown of AQP5 also inhibited proliferation and migration of the cells as knockdown of NFAT5 did. Moreover, overexpression of NFAT5 promoted proliferation and migration of lung adenocarcinoma cells, accompanied by a significant increase in the expression of AQP5. These results indicate that NFAT5 plays important roles in proliferation and migration of human lung adenocarcinoma cells through regulating AQP5 expression, providing a new therapeutic option for lung adenocarcinoma therapy. - Highlights: • NFAT5 expression is higher in lung adenocarcinoma cells compared with normal cells. • NFAT5 knockdown decreases proliferation and migration of lung adenocarcinoma cells. • Knockdown of NFAT5 reduces AQP5 expression in human lung adenocarcinoma cells. • Overexpression of NFAT5 promotes proliferation and migration of lung adenocarcinoma cells. • Overexpression of NFAT5 increases AQP5 expression in human lung adenocarcinoma cells.

  19. Research on the dry intrusion accompanying the low vortex precipitation

    YAO; XiuPing; WU; GuoXiong; ZHAO; BingKe; YU; YuBin; YANG; GuiMing

    2007-01-01

    By employing the 6.7μm satellite vapor cloud images and NCEP/NCAR 1°×1° reanalysis datasets, the characteristics and mechanism of the dry intrusion, as well as its impacts on the low vortex precipitation at the Meiyu front are explored in this paper. It is found that the formation,development and maintenance of the low vortex precipitation at the Meiyu front are closely related to the evolution of the dry intrusion. The dry intrusion is characterized by high potential vorticity (PV), low humidity and cold air. The dry intrusion exhibits as an obvious dark zone on vapor cloud images, an area in which atmospheric relative humidity is lower than 60%. However, the features of the dry intrusion on the vapor images are clearer than that of the humidity field, for the former is the digital vapor cloud images with high temporal and spatial resolution, and it can be used to explore the finer characteristics of the development, evolution and supplement of the intrusion during the development of the low vortex. The dry intrusion impacts accompanying the low vortex precipitation at the Meiyu front come from all levels of the troposphere, with the strongest intrusion located at the upper troposphere. The dry and cold air intrudes the vicinity of the low vortex from the upper isentropic surface to the lower one, slanting east-ward from lower to higher level. The low vortex precipitation region is usually situated in front of the dry intrusion where the relative humidity gradient is higher. The research also reveals that the mechanism of the dry intrusion is that the high potential vorticity descends from the upper troposphere to the lower level, therefore, the dry intrusion can be used as an important index of the high PV forcing. To the west of the low vortex precipitation, the upper level northerlies descend across the isentropic surface, then the dry cold advection can trigger the instable development in the midlow troposphere. The dry intru-sion enhances the low vortex

  20. Co-culture with Sertoli cells promotes proliferation and migration of umbilical cord mesenchymal stem cells

    Zhang, Fenxi, E-mail: fxzhang0824@gmail.com [Department of Anatomy, Sanquan College, Xinxiang Medical University, Henan 453003, People' s Republic of China (China); Hong, Yan; Liang, Wenmei [Department of Histology and Embryology, Guiyang Medical University, Guizhou 550004, People' s Republic of China (China); Ren, Tongming [Department of Anatomy, Sanquan College, Xinxiang Medical University, Henan 453003, People' s Republic of China (China); Jing, Suhua [ICU Center, The Third Hospital of Xinxiang Medical University, Henan 453003, People' s Republic of China (China); Lin, Juntang [Stem Cell Center, Xinxiang Medical University, Henan 453003, People' s Republic of China (China)

    2012-10-12

    Highlights: Black-Right-Pointing-Pointer Co-culture of Sertoli cells (SCs) with human umbilical cord mesenchymal stem cells (UCMSCs). Black-Right-Pointing-Pointer Presence of SCs dramatically increased proliferation and migration of UCMSCs. Black-Right-Pointing-Pointer Presence of SCs stimulated expression of Mdm2, Akt, CDC2, Cyclin D, CXCR4, MAPKs. -- Abstract: Human umbilical cord mesenchymal stem cells (hUCMSCs) have been recently used in transplant therapy. The proliferation and migration of MSCs are the determinants of the efficiency of MSC transplant therapy. Sertoli cells are a kind of 'nurse' cells that support the development of sperm cells. Recent studies show that Sertoli cells promote proliferation of endothelial cells and neural stem cells in co-culture. We hypothesized that co-culture of UCMSCs with Sertoli cells may also promote proliferation and migration of UCMSCs. To examine this hypothesis, we isolated UCMSCs from human cords and Sertoli cells from mouse testes, and co-cultured them using a Transwell system. We found that UCMSCs exhibited strong proliferation ability and potential to differentiate to other cell lineages such as osteocytes and adipocytes. The presence of Sertoli cells in co-culture significantly enhanced the proliferation and migration potential of UCMSCs (P < 0.01). Moreover, these phenotypic changes were accompanied with upregulation of multiple genes involved in cell proliferation and migration including phospho-Akt, Mdm2, phospho-CDC2, Cyclin D1, Cyclin D3 as well as CXCR4, phospho-p44 MAPK and phospho-p38 MAPK. These findings indicate that Sertoli cells boost UCMSC proliferation and migration potential.

  1. RNA interference targeting raptor inhibits proliferation of gastric cancer cells

    Wu, William Ka Kei; Lee, Chung Wa [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China); Cho, Chi Hin [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China); School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China); Chan, Francis Ka Leung [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China); Yu, Jun, E-mail: junyu@cuhk.edu.hk [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China); Sung, Joseph Jao Yiu, E-mail: joesung@cuhk.edu.hk [Institute of Digestive Diseases, LKS Institute of Health Sciences and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong (China)

    2011-06-10

    Mammalian target of rapamycin complex 1 (mTORC1) is dysregulated in gastric cancer. The biologic function of mTORC1 in gastric carcinogenesis is unclear. Here, we demonstrate that disruption of mTORC1 function by RNA interference-mediated downregulation of raptor substantially inhibited gastric cancer cell proliferation through induction of G{sub 0}/G{sub 1}-phase cell cycle arrest. The anti-proliferative effect was accompanied by concomitant downregulation of activator protein-1 and upregulation of Smad2/3 transcriptional activities. In addition, the expression of cyclin D{sub 3} and p21{sup Waf1}, which stabilizes cyclin D/cdk4 complex for G{sub 1}-S transition, was reduced by raptor knockdown. In conclusion, disruption of mTORC1 inhibits gastric cancer cell proliferation through multiple pathways. This discovery may have an implication in the application of mTORC1-directed therapy for the treatment of gastric cancer.

  2. Increased vascular density and vitreo-retinal membranes accompany vascularization of the pigment epithelium in the dystrophic rat retina.

    Caldwell, R B; Roque, R S; Solomon, S W

    1989-09-01

    Observations of vascularization of the retinal pigment epithelium (RPE) and formation of vitreo-retinal membranes (VRMs) in Royal College of Surgeons (RCS) rats with inherited retinal dystrophy suggest that vascular proliferation occurs in this model. To test this hypothesis, we studied the progression of vascular changes in RCS and age-matched control rats using quantitative light microscope morphometry and electron microscopy. At 2 weeks, prior to photoreceptor degeneration, the dystrophic retina is comparable with the control. By 2 months, extensive degeneration of photoreceptor cells results in significant thinning of the dystrophic retina as compared with the control. Signs of vascular degeneration are evident at the electron microscope level--"ghost" vessels consisting of acellular basal lamina surrounded by amorphous electron-dense material; degenerating endothelial cells and pericytes; and abnormal deposits of extracellular matrix (ECM) material around blood vessels. Vascular degeneration is accompanied by glial changes in the form of necrotic perivascular glial processes and abnormal ECM deposits among the altered Muller cell processes. At 2-4 months in the dystrophic retina, numbers of vessel profiles in dystrophic retinas are decreased as compared with controls. However, vascular degeneration is overshadowed by the formation of numerous capillary tufts within the RPE layer, which together with retinal thinning results in increased vessel density. Between 4-12 months, the retinal thickness diminishes further, vascularization of the RPE increases, vitreo-retinal membranes are formed, and vascular density increases. In summary, following an initial period of vascular degeneration, vascularization of the RPE is accompanied by an increase in retinal vessel density and by the formation of vitreo-retinal membranes.

  3. 30 CFR 250.246 - What mineral resource conservation information must accompany the DPP or DOCD?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What mineral resource conservation information... Coordination Documents (docd) § 250.246 What mineral resource conservation information must accompany the DPP or DOCD? The following mineral resource conservation information, as applicable, must accompany...

  4. 76 FR 44926 - Renewal of Declaration Regarding Emergency Use of Doxycycline Hyclate Tablets Accompanied by...

    2011-07-27

    ... Declaration Regarding Emergency Use of Doxycycline Hyclate Tablets Accompanied by Emergency Use Information and Amendment To Include All Oral Formulations of Doxycycline AGENCY: Office of the Secretary (OS... authorization of emergency use of doxycycline hyclate tablets accompanied by emergency use information...

  5. An extension of the Noether theorem: Accompanying equations possessing conservation laws

    Dorodnitsyn, V. A.; Ibragimov, N. H.

    2014-02-01

    It is shown that the Noether theorem can be extended for some equations associated (accompanying) with Euler-Lagrange equation. Each symmetry of Lagrangian yields a class of accompanying equations possessing conservation law (first integral). The generalization is done for canonical Hamiltonian equations as well.

  6. 22 CFR 40.102 - Guardian required to accompany excluded alien.

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Guardian required to accompany excluded alien. 40.102 Section 40.102 Foreign Relations DEPARTMENT OF STATE VISAS REGULATIONS PERTAINING TO BOTH... Guardian required to accompany excluded alien. INA 212(a)(9)(B) is not applicable at the time of...

  7. 39 CFR 320.7 - Suspension for advertisements accompanying parcels or periodicals.

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Suspension for advertisements accompanying parcels... advertisements accompanying parcels or periodicals. (a) The operation of 39 U.S.C. 601(a) (1) through (6) and § 310.2(b) (1) through (6) of this chapter is suspended on all post routes for advertisements...

  8. 30 CFR 250.215 - What hydrogen sulfide (H2S) information must accompany the EP?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What hydrogen sulfide (H2S) information must accompany the EP? 250.215 Section 250.215 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE... Contents of Exploration Plans (ep) § 250.215 What hydrogen sulfide (H2S) information must accompany the...

  9. 7 CFR 319.37-12 - Prohibited articles accompanying restricted articles.

    2010-01-01

    ... 7 Agriculture 5 2010-01-01 2010-01-01 false Prohibited articles accompanying restricted articles... Stock, Plants, Roots, Bulbs, Seeds, and Other Plant Products 1,2 § 319.37-12 Prohibited articles accompanying restricted articles. A restricted article for importation into the United States shall not...

  10. Proliferation resistance fuel cycle technology

    Lee, J. S.; Ko, W. I

    1999-02-01

    The issues of dual use in nuclear technology are analysed for nuclear fuel cycle with special focus on uranium enrichment and spent fuel reprocessing which are considered as the most sensitive components in terms of vulnerability to diversion. Technical alternatives to mitigrate the vulnerability, as has been analysed in depth during the NASAP and INFCE era in the late seventies, are reviewed to characterize the DUPIC fuel cycle alternative. On the other hand, the new realities in nuclear energy including the disposition of weapon materials as a legacy of cold war are recast in an angle of nuclear proliferation resistance and safeguards with a discussion on the concept of spent fuel standard concept and its compliance with the DUPIC fuel cycle technology. (author)

  11. Proliferation resistance: issues, initiatives and evaluation

    Pilat, Joseph F [Los Alamos National Laboratory

    2009-01-01

    The vision of a nuclear renaissance has highlighted the issue of proliferation resistance. The prospects for a dramatic growth in nuclear power may depend on the effectiveness of, and the resources devoted to, plans to develop and implement technologies and approaches that strengthen proliferation resistance. The GenIV International Forum (GIF) and others have devoted attention and resources to proliferation resistance. However, the hope of finding a way to make the peaceful uses of nuclear energy resistant to proliferation has reappeared again and again in the history of nuclear power with little practical consequence. The concept of proliferation resistance has usually focused on intrinsic (technological) as opposed to extrinsic (institutional) factors. However, if there are benefits that may yet be realized from reactors and other facilities designed to minimize proliferation risks, it is their coupling with effective safeguards and other nonproliferation measures that likely will be critical. Proliferation resistance has also traditionally been applied only to state threats. Although there are no technologies that can wholly eliminate the risk of proliferation by a determined state, technology can play a limited role in reducing state threats and perhaps in eliminating many non-state threats. These and other issues are not academic. They affect efforts to evaluate proliferation resistance, including the methodology developed by GIF's Proliferation Resistance and Physical Protection (PR&PP) Working Group as well as the proliferation resistance initiatives that are being pursued or may be developed in the future. This paper will offer a new framework for thinking about proliferation resistance issues, including the ways the output of the methodology could be developed to inform the decisions that states, the International Atomic Energy (IAEA) and others will have to make in order to fully realize the promise of a nuclear renaissance.

  12. Proliferation after the Iraq war; La proliferation apres la guerre d'Irak

    Daguzan, J.F

    2004-09-15

    This article uses the Iraq war major event to analyze the approach used by the US to fight against proliferation. It questions the decision and analysis process which has led to the US-British intervention and analyzes the consequences of the war on the proliferation of other countries and on the expected perspectives. Finally, the future of proliferation itself is questioned: do we have to fear more threat or is the virtuous circle of non-proliferation well started? (J.S.)

  13. Cyclic mechanical strain-induced proliferation and migration of human airway smooth muscle cells: role of EMMPRIN and MMPs.

    Hasaneen, Nadia A; Zucker, Stanley; Cao, Jian; Chiarelli, Christian; Panettieri, Reynold A; Foda, Hussein D

    2005-09-01

    Airway smooth muscle (ASM) proliferation and migration are major components of airway remodeling in asthma. Asthmatic airways are exposed to mechanical strain, which contributes to their remodeling. Matrix metalloproteinase (MMP) plays an important role in remodeling. In the present study, we examined if the mechanical strain of human ASM (HASM) cells contributes to their proliferation and migration and the role of MMPs in this process. HASM were exposed to mechanical strain using the FlexCell system. HASM cell proliferation, migration and MMP release, activation, and expression were assessed. Our results show that cyclic strain increased the proliferation and migration of HASM; cyclic strain increased release and activation of MMP-1, -2, and -3 and membrane type 1-MMP; MMP release was preceded by an increase in extracellular MMP inducer; Prinomastat [a MMP inhibitor (MMPI)] significantly decreased cyclic strain-induced proliferation and migration of HASM; and the strain-induced increase in the release of MMPs was accompanied by an increase in tenascin-C release. In conclusion, cyclic mechanical strain plays an important role in HASM cell proliferation and migration. This increase in proliferation and migration is through an increase in MMP release and activation. Pharmacological MMPIs should be considered in the pursuit of therapeutic options for airway remodeling in asthma.

  14. Vascular Injury Accompanying Displaced Proximal Humeral Fractures: Two Cases and a Review of the Literature

    Martijn Hofman

    2011-01-01

    Full Text Available We present two cases in which displaced proximal humeral fractures are accompanied by vascular injury. These Injuries are very rare but severe and the accompanying vascular impairment can have great clinical consequences. Therefore, we try to emphasize on the importance of thorough and accurate diagnostics, because it is obligatory for early diagnosis and improving the eventual outcome of these injuries. The specific order in treatment (internal fixation first or vascular repair first depends on the severity of the accompanying vascular injury. The increasing use of endovascular procedures to treat vascular lesions is a very interesting development with several advantages, especially in elderly and multimorbid patients.

  15. Langerhans Cell Histiocytosis of the Thyroid with Multiple Cervical Lymph Node Involvement Accompanying Metastatic Thyroid Papillary Carcinoma

    Ceyran, A. Bahar; Şenol, Serkan; Bayraktar, Barış; Özkanlı, Şeyma; Cinel, Z. Leyla; Aydın, Abdullah

    2014-01-01

    A 37-year-old male case was admitted with goiter. Ultrasonography of thyroid showed a 5 cm cystic nodule in the left lobe with a 1.5 cm solid component. Fine needle aspiration biopsy revealed atypia of undetermined significance or follicular lesion. The patient was operated on. The pathological diagnosis was reported as papillary thyroid carcinoma. The immunohistochemical examination showed multiple foci of Langerhans cell histiocytosis involving both lobes. The patient died due to cardiac arrest with respiratory causes in the early postoperative period. Langerhans cell histiocytosis is a rare primary condition which involves abnormal clonal proliferation of Langerhans cells in various tissues and organs. Thyroid involvement is infrequently seen. Although the etiology is unknown, genetic components may be linked to the disease. It is also associated with a family history of thyroid disease. Papillary thyroid carcinoma is the most common malignant epithelial tumor of the thyroid gland. Langerhans cell histiocytosis presenting with papillary thyroid carcinoma is rare. The privilege of our case is langerhans cell histiocytosis of the thyroid with multiple cervical lymph node involvement accompanying cervical lymph node metastatic thyroid papillary carcinoma. PMID:25349760

  16. Cryptococcal meningitis accompanying lymphocytic inflammation predominantly in cerebral deep white matter: a possible manifestation of immune reconstitution inflammatory syndrome.

    Kuwahara, Hiroya; Tsuchiya, Kuniaki; Kobayashi, Zen; Inaba, Akira; Akiyama, Haruhiko; Mizusawa, Hidehiro

    2014-02-01

    Cryptococcal meningitis is rarely complicated by immune-mediated leukoencephalopathy, but the precise pathomechanism is uncertain. A 72-year-old Japanese man treated with prednisolone for Sweet disease developed a subacute progression of meningitis, which was considered as neuro-Sweet disease. A treatment by methylprednisolone rapidly improved CSF findings with a remarkable decrease in lymphocyte numbers in the blood, but the patient's consciousness still worsened after the cessation of the treatment. The patient developed cryptococcal meningitis and MRI showed abnormal intensities predominantly in the cerebral deep white matter along with the recovery of lymphocyte numbers in the blood, which resulted in death. A postmortem examination of the brain revealed degenerative lesions, especially at the cerebral white matter and cortex adjacent to the leptomeninges abundantly infiltrated by Cryptococcus neoformans. In the affected cerebral deep white matter, perivascular infiltration of lymphocytes was prominent in coexistence with reactive astrocytes and vascular proliferation, but these findings were not observed in the subcortical and cortical lesions. Cryptococcus neoformans was not present within the brain parenchyma. This is the first report of a case suggesting that cryptococcal meningitis can accompany lymphocytic inflammation predominantly in cerebral deep white matter as a possible manifestation of immune reconstitution inflammatory syndrome.

  17. Teaching Activities on Horizontal Nuclear Proliferation.

    Zola, John

    1990-01-01

    Provides learning activities concerning the horizontal proliferation of nuclear weapons. Includes step-by-step directions for four activities: (1) the life cycle of nuclear weapons; (2) nuclear nonproliferation: pros and cons; (3) the nuclear power/nuclear weapons connection; and (4) managing nuclear proliferation. (NL)

  18. Nuclear Proliferation as a Global Values Issue.

    Nelson, Jack L.

    1990-01-01

    Presents a classroom activity designed to involve students in critical thinking and values inquiry concerning the horizontal nuclear proliferation. Provides a set of global values, explaining the conflict between them and nuclear proliferation. Uses indicators, hypothesis development, and testing. Provides sources for material evidence to use in…

  19. Corneal cellular proliferation and wound healing

    Gan, Lisha

    2000-01-01

    Background. Cellular proliferation plays an important role in both physiological and pathological processes. Epithelial hyperplasia in the epithelium, excessive scar formation in retrocorneal membrane formation and neovascularization are examples of excessive proliferation of cornea cells. Lack of proliferative ability causes corneal degeneration. The degree of proliferative and metabolic activity will directly influence corneal transparency and very evidently refractive res...

  20. Control of cell proliferation by Myc

    Bouchard, C; Staller, P; Eilers, M

    1998-01-01

    Myc proteins are key regulators of mammalian cell proliferation. They are transcription factors that activate genes as part of a heterodimeric complex with the protein Max. This review summarizes recent progress in understanding how Myc stimulates cell proliferation and how this might contribute...

  1. Director`s series on proliferation

    Bailey, K.C.; Price, M.E. [eds.

    1995-11-17

    This is an occasional publication of essays on the topics of nuclear, chemical, biological, and missile proliferation. The views represented are those of the author`s. Essay topics include: Nuclear Proliferation: Myth and Reality; Problems of Enforcing Compliance with Arms Control Agreements; The Unreliability of the Russian Officer Corps: Reluctant Domestic Warriors; and Russia`s Nuclear Legacy.

  2. Proliferation resistance of small modular reactors fuels

    Polidoro, F.; Parozzi, F. [RSE - Ricerca sul Sistema Energetico,Via Rubattino 54, 20134, Milano (Italy); Fassnacht, F.; Kuett, M.; Englert, M. [IANUS, Darmstadt University of Technology, Alexanderstr. 35, D-64283 Darmstadt (Germany)

    2013-07-01

    In this paper the proliferation resistance of different types of Small Modular Reactors (SMRs) has been examined and classified with criteria available in the literature. In the first part of the study, the level of proliferation attractiveness of traditional low-enriched UO{sub 2} and MOX fuels to be used in SMRs based on pressurized water technology has been analyzed. On the basis of numerical simulations both cores show significant proliferation risks. Although the MOX core is less proliferation prone in comparison to the UO{sub 2} core, it still can be highly attractive for diversion or undeclared production of nuclear material. In the second part of the paper, calculations to assess the proliferation attractiveness of fuel in typical small sodium cooled fast reactor show that proliferation risks from spent fuel cannot be neglected. The core contains a highly attractive plutonium composition during the whole life cycle. Despite some aspects of the design like the sealed core that enables easy detection of unauthorized withdrawal of fissile material and enhances proliferation resistance, in case of open Non-Proliferation Treaty break-out, weapon-grade plutonium in sufficient quantities could be extracted from the reactor core.

  3. Insulin induces PKC-dependent proliferation of mesenteric vascular smooth muscle cells from hypertensive patients

    Xukai WANG; Yan WANG; Chenming YANG; Ying WAN; Xianwen JI

    2006-01-01

    Background and objectives Proliferation of human vascular smooth muscle cells (VSMCs) induced by hyperinsulinemia is a very common clinical pathology. Extensive research has focused on PKC (Protein kinase C)-MAPK (mitogen-activated protein kinase)intracellular signal transduction and the phenotypic modulation accompanied by reorganization of intracellular F-actins in VSMCs.Methods DNA synthesis, signaling of ERK1/2 MAPKs, and changes in α-smooth muscle (SM) actin and F-actin were studied in hypertensive and normotensive human arterial VSMCs exposed to insulin and PMA with and without the PKC inhibitor, GF109203X.Results Differences among cell types in MAPK signaling, α-SM actin, and F-actin isoforms in VSMCs harvested from the arteries of patients with essential hypertension (EH) and normotension (NT) were identified in response to insulin treatment. Proliferation and activation of MAPK were more pronounced in EH VSMCs than in NEH VSMCs. Insulin exposure decreased expression of α-SM actin and was accompanied by rearrangement of intracellular F-actins in VSMCs, especially in the EH group. These effects were reversed by treatment with the PKC inhibitor. Conclusions Human mesenteric VSMCs of EH and NT patients differed in proliferation, MAPK signaling, and degree of changes in α-SM actin and F-actin isoforms immediately following insulin exposure in vitro.

  4. The endocannabinoid system drives neural progenitor proliferation.

    Aguado, Tania; Monory, Krisztina; Palazuelos, Javier; Stella, Nephi; Cravatt, Benjamin; Lutz, Beat; Marsicano, Giovanni; Kokaia, Zaal; Guzmán, Manuel; Galve-Roperh, Ismael

    2005-10-01

    The discovery of multipotent neural progenitor (NP) cells has provided strong support for the existence of neurogenesis in the adult brain. However, the signals controlling NP proliferation remain elusive. Endocannabinoids, the endogenous counterparts of marijuana-derived cannabinoids, act as neuromodulators via presynaptic CB1 receptors and also control neural cell death and survival. Here we show that progenitor cells express a functional endocannabinoid system that actively regulates cell proliferation both in vitro and in vivo. Specifically, NPs produce endocannabinoids and express the CB1 receptor and the endocannabinoid-inactivating enzyme fatty acid amide hydrolase (FAAH). CB1 receptor activation promotes cell proliferation and neurosphere generation, an action that is abrogated in CB1-deficient NPs. Accordingly, proliferation of hippocampal NPs is increased in FAAH-deficient mice. Our results demonstrate that endocannabinoids constitute a new group of signaling cues that regulate NP proliferation and thus open novel therapeutic avenues for manipulation of NP cell fate in the adult brain.

  5. [Letter and accompanying Bill proposing the creation of the Agassiz Wilderness

    US Fish and Wildlife Service, Department of the Interior — This reference contains both the letter, addressed to the Speaker of the House, proposing the creation of thirty-seven new wilderness areas, and the accompanying...

  6. Christoph Rothmann's discourse on the comet of 1585 an edition and translation with accompanying essays

    Granada, Miguel A; Jardine, Nicholas

    2014-01-01

    Christoph Rothmann's Discourse on the Comet of 1585 offers the first edition of the Latin treatise after it was published in 1619. It is accompanied by an English translation and a full introduction and commentary.

  7. [Introduction of accompanying documents on the new EMC standard of medical electrical equipment].

    Wang, Weiming

    2013-07-01

    The article introduces the requirements of accompanying documents on the new EMC standard of medical electrical equipment (YY 0505-2012), hope it can be useful for the manufacturers of medical electrical equipment.

  8. Results of dental implantation at patients with the accompanying somatic pathology

    2016-01-01

    Until recently operations of dental implantation were performed at patients of not having associated diseases. Now researches of opportunities of dental implantation at different types of the accompanying somatopathies are conducted.

  9. A Rare Entity: Bilateral First Rib Fractures Accompanying Bilateral Scapular Fractures

    Gultekin Gulbahar

    2015-01-01

    Full Text Available First rib fractures are scarce due to their well-protected anatomic locations. Bilateral first rib fractures accompanying bilateral scapular fractures are very rare, although they may be together with scapular and clavicular fractures. According to our knowledge, no case of bilateral first rib fractures accompanying bilateral scapular fractures has been reported, so we herein discussed the diagnosis, treatment, and complications of bone fractures due to thoracic trauma in bias of this rare entity.

  10. Red Ear and More: Facial and Extrafacial Erythema Accompanying Migraine Attacks.

    Velasco, Elena Martínez; Mesonero, Luis López; Hueso, María Isabel Pedraza; Piñero, Marina Ruiz; de Lera Alfonso, Mercedes; Peral, Ángel Luis Guerrero

    2016-01-01

    Cutaneous manifestations of migraine are infrequent and their spectrum is reduced to the red ear syndrome (RES) and eyelid disorders. We report a case of a 26-year-old woman with migraine accompanied by extensive erythema, which involved right ear and cheek and left hemithorax. She fulfilled proposed criteria of RES. We started preventive therapy with a significant response. This is the first description in the literature of an erythema accompanying migraine attacks broadly exceeding the ear.

  11. Vegetative Proliferation and Secondary Proliferated Inflorescences Development in Grass Ischaemum barbatum Retz

    Guo-Hua Ma; Xue-Lin Huang; Bunn Eric

    2006-01-01

    We report the vegetative proliferation and new phenomenon of "secondary proliferated inflorescences" in the grass Ischaemum barbatum Retz, as determined by anatomical analysis of prepared sections of inflorescences. Leaves and shoots could be developed from the original spikelets of inflorescences and plantlets developed when these shoots were transplanted to moist soil. "Secondary proliferated inflorescences" is the first name here because some inflorescences that developed inadequacy are grown from the spikelet on the mother inflorescence. Our investigation showed that this form of vegetative proliferation and secondary proliferated inflorescences development of I. barbatum has arisen following late autumn fires of the previous year. It is suggested that the sudden onset of a fire could lead to a hormone imbalance or a chemical induction, which results in ephemeral vegetative proliferation even secondary proliferated inflorescences development in wild populations.

  12. Harmine stimulates proliferation of human neural progenitors

    Dakic, Vanja; Maciel, Renata de Moraes; Drummond, Hannah; Nascimento, Juliana M.; Trindade, Pablo

    2016-01-01

    Harmine is the β-carboline alkaloid with the highest concentration in the psychotropic plant decoction Ayahuasca. In rodents, classical antidepressants reverse the symptoms of depression by stimulating neuronal proliferation. It has been shown that Ayahuasca presents antidepressant effects in patients with depressive disorder. In the present study, we investigated the effects of harmine in cell cultures containing human neural progenitor cells (hNPCs, 97% nestin-positive) derived from pluripotent stem cells. After 4 days of treatment, the pool of proliferating hNPCs increased by 71.5%. Harmine has been reported as a potent inhibitor of the dual specificity tyrosine-phosphorylation-regulated kinase (DYRK1A), which regulates cell proliferation and brain development. We tested the effect of analogs of harmine, an inhibitor of DYRK1A (INDY), and an irreversible selective inhibitor of monoamine oxidase (MAO) but not DYRK1A (pargyline). INDY but not pargyline induced proliferation of hNPCs similarly to harmine, suggesting that inhibition of DYRK1A is a possible mechanism to explain harmine effects upon the proliferation of hNPCs. Our findings show that harmine enhances proliferation of hNPCs and suggest that inhibition of DYRK1A may explain its effects upon proliferation in vitro and antidepressant effects in vivo. PMID:27957390

  13. Harmine stimulates proliferation of human neural progenitors

    Vanja Dakic

    2016-12-01

    Full Text Available Harmine is the β-carboline alkaloid with the highest concentration in the psychotropic plant decoction Ayahuasca. In rodents, classical antidepressants reverse the symptoms of depression by stimulating neuronal proliferation. It has been shown that Ayahuasca presents antidepressant effects in patients with depressive disorder. In the present study, we investigated the effects of harmine in cell cultures containing human neural progenitor cells (hNPCs, 97% nestin-positive derived from pluripotent stem cells. After 4 days of treatment, the pool of proliferating hNPCs increased by 71.5%. Harmine has been reported as a potent inhibitor of the dual specificity tyrosine-phosphorylation-regulated kinase (DYRK1A, which regulates cell proliferation and brain development. We tested the effect of analogs of harmine, an inhibitor of DYRK1A (INDY, and an irreversible selective inhibitor of monoamine oxidase (MAO but not DYRK1A (pargyline. INDY but not pargyline induced proliferation of hNPCs similarly to harmine, suggesting that inhibition of DYRK1A is a possible mechanism to explain harmine effects upon the proliferation of hNPCs. Our findings show that harmine enhances proliferation of hNPCs and suggest that inhibition of DYRK1A may explain its effects upon proliferation in vitro and antidepressant effects in vivo.

  14. Financial incentives for reducing proliferation risks

    Weise, Rachel A.; Hund, Gretchen

    2016-08-15

    This article submitted for publication to the Bulletin of Atomic Scientists explains the possible financial incentives for financial institutions and large integrators to reduce nuclear proliferation risks by including anti-proliferation measures in their due diligence and requiring their suppliers to meet heightened compliance standards. Because manufacturers of dual-use nuclear goods are diverse and numerous outreach is difficult. However, financial institutions and large integrators work with nearly all dual-use manufacturers, making financial institutions and integrators well-positioned to increase awareness of proliferation and trafficking risks throughout the nuclear supply chain

  15. The Relationship of Expression of bcl-2, p53, and Proliferating Cell Nuclear Antigen (PCNA) to Cell Proliferation and Apoptosis in Renal Cell Carcinoma

    朱朝辉; 邢诗安; 程平; 李国胜; 杨郁; 曾甫清; 鲁功成

    2004-01-01

    To investigate the relationship of bcl-2, p53, proliferating cell nuclear antigen (PCNA) to cell proliferation, apoptosis and pathological parameters, the patterns of cell growth and turnover in renal cell carcinoma (RCC), formalin-fixed and paraffin-embedded tissue blocks from 34 patients with RCC were examined. Cell proliferation activity was detected by PCNA immunostaining and the proliferation index (PI) was expressed as a percentage of the PCNA-positive cells in the tumor cells. Apoptosis was detected by terminal deoxy- nucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL), and the apoptotic index (AI) was expressed as a percentage of the TUNEL-positive cells in the tumor cells. Expressions of bcl-2 and p53 were assessed immunohistochemically. Our results showed that the PI ranged from 6.0 % to 24.0 % (median 12.3 %) and theAI from 2.0 % to 8.0 % (median 5.4 %) in RCC. The expression of the bcl-2 protein was demonstrated in 15 cases (44.1 %); the expression of the p53 protein, however, was seen in only 3 case. bcl-2 positivity was not associated with PI or AI or any pathological parameters. There were close associations between PI and tumor grade and stage, and a significant relationship between AI and the tumor grade of RCC. Our study suggests that bcl-2 positivity was not associated with PI or AI or any pathological parameters. There are close associations between PI and AI and tumor grade and stage of RCC. Active cell proliferation may be accompanied by frequent apoptosis in RCC.

  16. Proliferating resident microglia after focal cerebral ischaemia in mice.

    Denes, Adam; Vidyasagar, Rishma; Feng, Jianghua; Narvainen, Johanna; McColl, Barry W; Kauppinen, Risto A; Allan, Stuart M

    2007-12-01

    Cerebral ischaemia usually results in the rapid death of neurons within the immediate territory of the affected artery. Neuronal loss is accompanied by a sequence of events, including brain oedema, blood-brain barrier (BBB) breakdown, and neuroinflammation, all of which contribute to further neuronal death. Although the role of macrophages and mononuclear phagocytes in the expansion of ischaemic injury has been widely studied, the relative contribution of these cells, either of exogenous or intrinsic central nervous system (CNS) origin is still not entirely clear. The purpose of this study, therefore, was to use different durations of transient middle cerebral artery occlusion (tMCAo) in the mouse to investigate fully post-occlusion BBB permeability and cellular changes in the brain during the 72 h post-MCAo period. This was achieved using in vivo magnetic resonance imaging (MRI) and cell labelling techniques. Our results show that BBB breakdown and formation of the primary ischaemic damage after tMCAo is not associated with significant infiltration of neutrophils, although more are observed with longer periods of MCAo. In addition, we observe very few infiltrating exogenous macrophages over a 72 h period after 30 or 60 mins of occlusion, instead a profound increase in proliferating resident microglia cells was observed. Interestingly, the more severe injury associated with 60 mins of MCAo leads to a markedly reduced proliferation of resident microglial cells, suggesting that these cells may play a protective function, possibly through phagocytosis of infiltrating neutrophils. These data further support possible beneficial actions of microglial cells in the injured brain.

  17. Handbook for nuclear non-proliferation

    Lee, Byung Wook; Oh, Keun Bae; Lee, Kwang Seok; Lee, Dong Jin; Ko, Han Seok

    1997-05-01

    This book analyzed international non-proliferation regime preventing from spread of nuclear weapon. This book took review from the historical background of non-proliferation regime to the recent changes and status. The regime, here, is divided into multilateral and bilateral regime. First of all, this book reports four multilateral treaties concluded for non-proliferation such as NPT, NWFZ, CTBT and others. Secondly, international organization and regimes concerned with non-proliferation are analyzed with emphasis of UN, IAEA, ZC and NSG, Regional Safeguards System and international conference. Finally, this book report the current circumstances of nuclear cooperation agreement related with Korea which is an important means for bilateral regime. (author). 13 tabs., 2 figs.

  18. Absence of K-Ras Reduces Proliferation and Migration But Increases Extracellular Matrix Synthesis in Fibroblasts.

    Muñoz-Félix, José M; Fuentes-Calvo, Isabel; Cuesta, Cristina; Eleno, Nélida; Crespo, Piero; López-Novoa, José M; Martínez-Salgado, Carlos

    2016-10-01

    The involvement of Ras-GTPases in the development of renal fibrosis has been addressed in the last decade. We have previously shown that H- and N-Ras isoforms participate in the regulation of fibrosis. Herein, we assessed the role of K-Ras in cellular processes involved in the development of fibrosis: proliferation, migration, and extracellular matrix (ECM) proteins synthesis. K-Ras knockout (KO) mouse embryonic fibroblasts (K-ras(-/-) ) stimulated with transforming growth factor-β1 (TGF-β1) exhibited reduced proliferation and impaired mobility than wild-type fibroblasts. Moreover, an increase on ECM production was observed in K-Ras KO fibroblasts in basal conditions. The absence of K-Ras was accompanied by reduced Ras activation and ERK phosphorylation, and increased AKT phosphorylation, but no differences were observed in TGF-β1-induced Smad signaling. The MEK inhibitor U0126 decreased cell proliferation independently of the presence of K-ras but reduced migration and ECM proteins expression only in wild-type fibroblasts, while the PI3K-AKT inhibitor LY294002 decreased cell proliferation, migration, and ECM synthesis in both types of fibroblasts. Thus, our data unveil that K-Ras and its downstream effector pathways distinctively regulate key biological processes in the development of fibrosis. Moreover, we show that K-Ras may be a crucial mediator in TGF-β1-mediated effects in this cell type. J. Cell. Physiol. 231: 2224-2235, 2016. © 2016 Wiley Periodicals, Inc.

  19. Collagen Promotes Higher Adhesion, Survival and Proliferation of Mesenchymal Stem Cells.

    Chinnapaka Somaiah

    Full Text Available Mesenchymal stem cells (MSC can differentiate into several cell types and are desirable candidates for cell therapy and tissue engineering. However, due to poor cell survival, proliferation and differentiation in the patient, the therapy outcomes have not been satisfactory. Although several studies have been done to understand the conditions that promote proliferation, differentiation and migration of MSC in vitro and in vivo, still there is no clear understanding on the effect of non-cellular bio molecules. Of the many factors that influence the cell behavior, the immediate cell microenvironment plays a major role. In this context, we studied the effect of extracellular matrix (ECM proteins in controlling cell survival, proliferation, migration and directed MSC differentiation. We found that collagen promoted cell proliferation, cell survival under stress and promoted high cell adhesion to the cell culture surface. Increased osteogenic differentiation accompanied by high active RHOA (Ras homology gene family member A levels was exhibited by MSC cultured on collagen. In conclusion, our study shows that collagen will be a suitable matrix for large scale production of MSC with high survival rate and to obtain high osteogenic differentiation for therapy.

  20. Pioglitazone promotes preadipocyte proliferation by downregulating p16{sup Ink4a}

    Hasan, Arif U. [Department of Cardiorenal Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Ohmori, Koji, E-mail: komori@med.kagawa-u.ac.jp [Department of Cardiorenal Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Hashimoto, Takeshi [Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Kamitori, Kazuyo; Hirata, Yuko [Department of Cell Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Ishihara, Yasuhiro; Okamoto, Naoko; Noma, Takahisa [Department of Cardiorenal Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Kosaka, Hiroaki [Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Tokuda, Masaaki [Department of Cell Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan); Kohno, Masakazu [Department of Cardiorenal Cerebrovascular Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793 (Japan)

    2011-07-29

    Highlights: {yields} Mechanisms for preadipocyte hyperplasia by pioglitazone, a PPAR{gamma} agonist, are shown. {yields} Pioglitazone promotes cell-cycle of 3T3-L1 preadipocytes and increases their number. {yields} Pioglitazone downregulates a cyclin dependent kinase inhibitor, p16{sup Ink4a}. {yields} PPAR{gamma} transrepresses p16{sup Ink4a} gene in preadipocytes, which pioglitazone enhances. -- Abstract: Pioglitazone, a synthetic ligand of peroxisome proliferator-activated receptor (PPAR){gamma}, causes preadipocyte proliferation through a mechanism which still remains elusive. Here, to address the mechanism, we investigated the effects of PPAR{gamma} and pioglitazone on the kinetics of cyclin-dependent kinase inhibitors, especially with p16{sup Ink4a} (p16) centered, by employing 3T3-L1 preadipocytes. Pioglitazone promoted preadipocyte proliferation by increasing S and G{sub 2}/M cell-cycle entry, which was accompanied by decreased p16 mRNA expression. PPAR{gamma} overexpression along with the luciferase reporter assay confirmed that PPAR{gamma} was crucial for the downregulation of p16 mRNA transcription, and that the action was augmented by pioglitazone. Thus, pioglitazone exerted cell-cycle dependent promoting effect on preadipocyte proliferation, of which mechanisms include p16-downregulation through PPAR{gamma}.

  1. TRPV6 modulates proliferation of human pancreatic neuroendocrine BON-1 tumour cells.

    Skrzypski, Marek; Kołodziejski, Paweł A; Mergler, Stefan; Khajavi, Noushafarin; Nowak, Krzysztof W; Strowski, Mathias Z

    2016-08-01

    Highly Ca(2+) permeable receptor potential channel vanilloid type 6 (TRPV6) modulates a variety of biological functions including calcium-dependent cell growth and apoptosis. So far, the role of TRPV6 in controlling growth of pancreatic neuroendocrine tumour (NET) cells is unknown. In the present study, we characterize the expression of TRPV6 in pancreatic BON-1 and QGP-1 NET cells. Furthermore, we evaluate the impact of TRPV6 on intracellular calcium, the activity of nuclear factor of activated T-cells (NFAT) and proliferation of BON-1 cells. TRPV6 expression was assessed by real-time PCR and Western blot. TRPV6 mRNA expression and protein production were down-regulated by siRNA. Changes in intracellular calcium levels were detected by fluorescence calcium imaging (fura-2/AM). NFAT activity was studied by NFAT reporter assay; cell proliferation by bromodeoxyuridine (BrdU), MTT and propidium iodine staining. TRPV6 mRNA and protein are present in BON-1 and QGP-1 NET-cells. Down-regulation of TRPV6 attenuates BON-1 cell proliferation. TRPV6 down-regulation is associated with decreased Ca(2+) response pattern and reduced NFAT activity. In conclusion, TRPV6 is expressed in pancreatic NETs and modulates cell proliferation via Ca(2+)-dependent mechanism, which is accompanied by NFAT activation.

  2. Notch regulates blastema proliferation and prevents differentiation during adult zebrafish fin regeneration.

    Münch, Juliane; González-Rajal, Alvaro; de la Pompa, José Luis

    2013-04-01

    Zebrafish have the capacity to regenerate several organs, including the heart and fins. Fin regeneration is epimorphic, involving the formation at the amputation plane of a mass of undifferentiated, proliferating mesenchymal progenitor-like cells, called blastema. This tissue provides all the cell types that form the fin, so that after damage or amputation the fin pattern and structure are fully restored. How blastema cells remain in this progenitor-like state is poorly understood. Here, we show that the Notch pathway plays an essential role during fin regeneration. Notch signalling is activated during blastema formation and remains active throughout the regeneration process. Chemical inhibition or morpholino-mediated knockdown of Notch signalling impairs fin regeneration via decreased proliferation accompanied by reduced expression of Notch target genes in the blastema. Conversely, overexpression of a constitutively active form of the Notch1 receptor (N1ICD) in the regenerating fin leads to increased proliferation and to the expansion of the blastema cell markers msxe and msxb, as well as increased expression of the proliferation regulator aldh1a2. This blastema expansion prevents regenerative fin outgrowth, as indicated by the reduction in differentiating osteoblasts and the inhibition of bone regeneration. We conclude that Notch signalling maintains blastema cells in a plastic, undifferentiated and proliferative state, an essential requirement for fin regeneration.

  3. Hydrogen sulfide lowers proliferation and induces protective autophagy in colon epithelial cells.

    Ya C Wu

    Full Text Available Hydrogen sulfide (H(2S is a gaseous bacterial metabolite that reaches high levels in the large intestine. In the present study, the effect of H(2S on the proliferation of normal and cancerous colon epithelial cells was investigated. An immortalized colon epithelial cell line (YAMC and a panel of colon cancer cell lines (HT-29, SW1116, HCT116 were exposed to H(2S at concentrations similar to those found in the human colon. H(2S inhibited normal and cancerous colon epithelial cell proliferation as measured by MTT assay. The anti-mitogenic effect of H(2S was accompanied by G(1-phase cell cycle arrest and the induction of the cyclin-dependent kinase inhibitor p21(Cip. Moreover, exposure to H(2S led to features characteristic of autophagy, including increased formation of LC3B(+ autophagic vacuoles and acidic vesicular organelles as determined by immunofluorescence and acridine orange staining, respectively. Abolition of autophagy by RNA interference targeting Vps34 or Atg7 enhanced the anti-proliferative effect of H(2S. Further mechanistic investigation revealed that H(2S stimulated the phosphorylation of AMP-activated protein kinase (AMPK and inhibited the phosphorylation of mammalian target of rapamycin (mTOR and S6 kinase. Inhibition of AMPK significantly reversed H(2S-induced autophagy and inhibition of cell proliferation. Collectively, we demonstrate that H(2S inhibits colon epithelial cell proliferation and induces protective autophagy via the AMPK pathway.

  4. Role of PKC isozymes in low-power light-stimulated proliferation of cultured skin cells

    Grossman, Nili; Kleitman, Vered; Meller, Julia; Kaufmann, Roland; Akgun, Nermin; Ruck, Angelika; Livneh, Etta; Lubart, Rachel

    2000-11-01

    Exposure of cultured skin cells to low power visible light leads to a transiently stimulated proliferation. Facilitation of this response requires the presence of active PKC, elevation of intracellular calcium, and involves reactive oxygen species. In the present study, the role of PKC(alpha) and PCK(eta) was examined using paired murine fibroblasts, differing in the level of these isozymes expression. The ability of the cells to respond to low power UVA light or HeNe laser by stimulated proliferation was correlated with an active state or overexpression of PKC(alpha) , but not PKC(eta) . A parallel response was obtained in cells that were loaded with A1PcS4 before photosensitization. Whenever this latter treatment caused a light-stimulated inhibition, it was accompanied by the intracellular calcium and photosensitizer dynamics typical of the effect of PDT on rate epithelial cells. Accordingly, added antioxidants that suppressed light-stimulated proliferation also suppressed this light-stimulated inhibition. The model systems employed in this study are the first to demonstrate the specific effect of PKC isozymes on light-stimulated proliferation, in relation to oxidative stress, and indicate their dual role in light-tissue interaction.

  5. Sweden and the making of nuclear non-proliferation: from indecision to assertiveness

    Dassen, L. van [Uppsala Univ. (Sweden). Dept. of Peace and Conflict Research

    1998-03-01

    Swedish research on nuclear weapons started at a modest scale in 1945 but was soon expanded. By the early 1950s the research programme started to face some of the problems that were going to accompany it for the rest of its life: different priorities and cost-estimates were made by the sectors that wanted to develop nuclear energy and those working on the bomb. Moreover, an introduction of nuclear weapons would lead to a major redistribution of resources to the disadvantage of the navy and army. The public and political debates intensified during the 1950s and culminated in 1960. At first, pro-nuclear voices had been strongest but were soon challenged by interest groups, unions and peace movements. 1960, a committee within the government had established a compromise: Nuclear weapons research for production of weapons would be terminated, while research on the consequences of nuclear weapons would continue. It was a cosmetic decision that could cover for a continued research on weapons design. Nevertheless, there are some general qualities from the debates that indicate why the outcome was that Sweden signed the NPT in 1968. First, the number of interested persons, groups movements and party politicians engaged in the issue increased every time the issue came up. Secondly, the segments of society that supported the nuclear option remained roughly the same. No strong movements rallied to the defence of this position. On the other hand, the anti-nuclear wing received more and more followers. Third, there was a marked tendency by virtually all actors (except the military) to include every sign of progress in international disarmament and non-proliferation efforts as arguments against Swedish proliferation. Since 1968, the non-proliferation choice has ben manifested through Sweden``s adherence to the NPT and this has been accompanied by a strong commitment to other non-proliferation initiatives. Refs.

  6. Knowledge and expectations of the accompanying member concerning illnesses and hospitalization of the newborn

    Maria da Gloria Machado de Oliveira

    2015-02-01

    Full Text Available This study aimed at describing the knowledge, difficulties and expectations of accompanying members concerning illnesses and hospitalization of the newborn. It is a qualitative study with 11 accompanying members of infants admitted in public hospital, in Fortaleza, CE, Brazil. It consists of semi-structured interviews carried out and recorded in June 2012. It was based on the content analysis that emerged from three categories: knowing the health problems of the newborn, expectations in the hospital context and difficulties faced by accompanying members. It was observed that the accompanying members had limited knowledge about the health conditions that resulted in the hospitalization of the newborn, although there was a professional health team for the guidelines, for the affected needs. Commonly speaking, it expresses limited information, but possible to be understood. It is essential that the health professionals provide to the accompanying members on the disease, treatment and recovery of the newborn so that they can understand the process of hospitalization and provide proper assistance.

  7. Airway Epithelium Stimulates Smooth Muscle Proliferation

    Malavia, Nikita K.; Raub, Christopher B.; Mahon, Sari B.; Brenner, Matthew; Reynold A Panettieri; George, Steven C.

    2009-01-01

    Communication between the airway epithelium and stroma is evident during embryogenesis, and both epithelial shedding and increased smooth muscle proliferation are features of airway remodeling. Hence, we hypothesized that after injury the airway epithelium could modulate airway smooth muscle proliferation. Fully differentiated primary normal human bronchial epithelial (NHBE) cells at an air–liquid interface were co-cultured with serum-deprived normal primary human airway smooth muscle cells (...

  8. Managing Proliferation Issues with Iran

    Nelson, C. Richard; Saltiel, David H.

    2002-02-15

    . Russian policy, in particular, will continue to play a vital role in determining the extent to which Iran is able to pursue WMD options. Without a fundamental change in the regional security environment, however, there is little reason to expect changes in Iranian WMD and missile policies, and the United States, acting alone and short of war, cannot prevent Iran from ultimately developing WMD and delivery systems. Furthermore, U.S. policies that take a tougher line with Russia, China and North Korea are not likely to lead to more restraint among these potential sources of WMD and missile technology. In the absence of engagement with Iran, unilateral U.S. economic sanctions will remain the principal, if flawed, U.S. policy tool for seeking to prevent Iran from acquiring WMD. The rationale is that by discouraging trade and investment, particularly in Iran's energy sector, the government of Iran will have less revenue to pursue proliferation. Without broad international support for economic isolation, however, such an effort may hinder Iran's WMD programs, though it cannot block them. Finally, options are needed to deal with major failures in nonproliferation efforts. These options include measures to deter Iranian use of WMD, to defend against their use if deterrence fails, and to destroy Iranian WMD capabilities should the need arise.

  9. 78 FR 66357 - Proposed Changes to FCC Form 499-A, FCC Form 499-Q, and Accompanying Instructions

    2013-11-05

    ... COMMISSION Proposed Changes to FCC Form 499-A, FCC Form 499-Q, and Accompanying Instructions AGENCY: Federal... annual Telecommunications Reporting Worksheet, FCC Form 499-A (Form 499-A) and accompanying instructions... Telecommunications Reporting Worksheet, FCC Form 499-Q (Form 499-Q) and accompanying instructions (Form...

  10. Totally laparoscopic gastrectomy for early gastric cancer accompanied by huge hiatal hernia: A case report.

    Hagiwara, Chie; Yajima, Kazuhito; Iwasaki, Yoshiaki; Oohinata, Ryouki; Yuu, Ken; Ishiyama, Satoshi; Amaki, Misato; Nakano, Daisuke; Yamaguchi, Tatsuro; Matsumoto, Hiroshi; Takahashi, Keiichi

    2016-02-01

    We herein present a case in which we used a totally laparoscopic approach for early gastric cancer accompanied by a huge hiatal hernia. An 80-year-old Japanese woman was referred with a chief complaint of dysphagia. A clinical diagnosis of early gastric cancer, T1b (SM) N0M0, stage IA, accompanied by hiatal hernia, was made. Distal gastrectomy with D1 plus lymphadenectomy was carried out. After the gastrectomy, the hernial sac was excised and the hernial orifice was closed. Reconstruction using the Roux-en-Y method was selected. The postoperative course was uneventful and she was discharged on postoperative day 10.

  11. Steam thermolysis of tire shreds: modernization in afterburning of accompanying gas with waste steam

    Kalitko, V. A.

    2010-03-01

    On the basis of experience in the commercial operation of tire-shred steam thermolysis in EnresTec Inc. (Taiwan) producing high-grade commercial carbon, liquid pyrolysis fuel, and accompanying fuel gas by this method, we have proposed a number of engineering solutions and calculated-analytical substantiations for modernization and intensification of the process by afterburning the accompanying gas with waste steam condensable in the scrubber of water gas cleaning of afterburning products. The condensate is completely freed of the organic pyrolysis impurities and the necessity of separating it from the liquid fuel, as is the case with the active process, is excluded.

  12. 75 FR 61489 - Renewal of Declaration Regarding Emergency Use of Doxycycline Hyclate Tablets Accompanied by...

    2010-10-05

    ... HUMAN SERVICES Office of the Secretary Renewal of Declaration Regarding Emergency Use of Doxycycline... use of doxycycline hyclate tablets accompanied by emergency use information subject to the terms of..., Michael O. Leavitt, declared an emergency justifying the authorization of the emergency use of...

  13. Training shortens search times in children with visual impairment accompanied by nystagmus

    Huurneman, B.; Boonstra, F.N.

    2014-01-01

    Perceptual learning (PL) can improve near visual acuity (NVA) in 4-9 year old children with visual impairment (VI). However, the mechanisms underlying improved NVA are unknown. The present study compares feature search and oculomotor measures in 4-9 year old children with VI accompanied by nystagmus

  14. Measurement of isolated photons accompanied by jets in deep inelastic ep scattering

    Abramowicz, H.; Abt, I.; Adamczyk, L.; Adamus, M.; Aggarwal, R.; Antonelli, S.; Antonioli, P.; Antonov, A.; Arneodo, M.; Aushev, V.; Aushev, Y.; Bachynska, O.; Bamberger, A.; Barakbaev, A. N.; Barbagli, G.; Bari, G.; Barreiro, F.; Bartosik, N.; Bartsch, D.; Basile, M.; Behnke, O.; Behr, J.; Behrens, U.; Bellagamba, L.; Bertolin, A.; Bhadra, S.; Bindi, M.; Blohm, C.; Bokhonov, V.; Bold, T.; Bondarenko, K.; Boos, E. G.; Borras, K.; Boscherini, D.; Brock, I.; Brownson, E.; Brugnera, R.; Bruemmer, N.; Bruni, A.; Bruni, G.; Brzozowska, B.; Bussey, P. J.; Bylsma, B.; Caldwell, A.; Capua, M.; Carlin, R.; Catterall, C. D.; Chekanov, S.; Chwastowski, J.; Ciborowski, J.; Ciesielski, R.; Cifarelli, L.; Cindolo, F.; Contin, A.; Cooper-Sarkar, A. M.; Coppola, N.; Corradi, M.; Corriveau, F.; Costa, M.; D'Agostini, G.; Dal Corso, F.; del Peso, J.; Dementiev, R. K.; De Pasquale, S.; Derrick, M.; Devenish, R. C. E.; Dobur, D.; Dolgoshein, B. A.; Dolinska, G.; Doyle, A. T.; Drugakov, V.; Durkin, L. S.; Dusini, S.; Eisenberg, Y.; Ermolov, P. F.; Eskreys, A.; Fazio, S.; Ferrando, J.; Ferrero, M. I.; Figiel, J.; Forrest, M.; Foster, B.; Gach, G.; Galas, A.; Gallo, E.; Garfagnini, A.; Geiser, A.; Gialas, I.; Gizhko, A.; Gladilin, L. K.; Gladkov, D.; Glasman, C.; Gogota, O.; Golubkov, Yu. A.; Goettlicher, P.; Grabowska-Bold, I.; Grebenyuk, J.; Gregor, I.; Grigorescu, G.; Grzelak, G.; Gueta, O.; Guzik, M.; Gwenlan, C.; Haas, T.; Hain, W.; Hamatsu, R.; Hart, J. C.; Hartmann, H.; Hartner, G.; Hilger, E.; Hochman, D.; Hori, R.; Huettmann, A.; Ibrahim, Z. A.; Iga, Y.; Ingbir, R.; Ishitsuka, M.; Jakob, H. -P.; Januschek, F.; Jones, T. W.; Juengst, M.; Kadenko, I.; Kahle, B.; Kananov, S.; Kanno, T.; Karshon, U.; Karstens, F.; Katkov, I. I.; Kaur, M.; Kaur, P.; Keramidas, A.; Khein, L. A.; Kim, J. Y.; Kisielewska, D.; Kitamura, S.; Klanner, R.; Klein, U.; Kondrashova, N.; Kononenko, O.; Kooijman, P.; Korol, Ie; Korzhavina, I. A.; Kotanski, A.; Koetz, U.; Kowalski, H.; Kuprash, O.; Kuze, M.; Lee, A.; Levchenko, B. B.; Libov, V.; Limentani, S.; Ling, T. Y.; Lisovyi, M.; Lobodzinska, E.; Lohmann, W.; Loehr, B.; Lohrmann, E.; Long, K. R.; Longhin, A.; Lontkovskyi, D.; Lukina, O. Yu; Maeda, J.; Magill, S.; Makarenko, I.; Malka, J.; Mankel, R.; Margotti, A.; Marini, G.; Mastroberardino, A.; Mattingly, M. C. K.; Melzer-Pellmann, I. -A.; Mergelmeyer, S.; Miglioranzi, S.; Idris, F. Mohamad; Monaco, V.; Montanari, A.; Mujkic, K.; Musgrave, B.; Nagano, K.; Namsoo, T.; Nania, R.; Nigro, A.; Ning, Y.; Nobe, T.; Notz, D.; Nowak, R. J.; Nuncio-Quiroz, A. E.; Oh, B. Y.; Okazaki, N.; Olkiewicz, K.; Onishchuk, Yu.; Papageorgiu, K.; Parenti, A.; Pawlak, J. M.; Pawlik, B.; Pelfer, P. G.; Pellegrino, A.; Perlanski, W.; Perrey, H.; Piotrzkowski, K.; Plucinski, P.; Pokrovskiy, N. S.; Polini, A.; Proskuryakov, A. S.; Przybycien, M.; Raval, A.; Reeder, D. D.; Reisert, B.; Ren, Z.; Repond, J.; Ri, Y. D.; Robertson, A.; Roloff, P.; Rubinsky, I.; Ruspa, M.; Sacchi, R.; Samson, U.; Sartorelli, G.; Savin, A. A.; Saxon, D. H.; Schioppa, M.; Schlenstedt, S.; Schleper, P.; Schmidke, W. B.; Schneekloth, U.; Schoenberg, V.; Schoerner-Sadenius, T.; Schwartz, J.; Sciulli, F.; Shcheglova, L. M.; Shehzadi, R.; Singh, I.; Skillicorn, I. O.; Slominski, W.; Smith, W. H.; Sola, V.; Solano, A.; Son, D.; Sosnovtsev, V.; Spiridonov, A.; Stadie, H.; Stanco, L.; Stefaniuk, N.; Stern, A.; Stewart, T. P.; Stifutkin, A.; Stopa, P.; Suchkov, S.; Susinno, G.; Suszycki, L.; Sztuk-Dambietz, J.; Szuba, D.; Szuba, J.; Tapper, A. D.; Tassi, E.; Terron, J.; Theedt, T.; Tiecke, H.; Tokushuku, K.; Tomaszewska, J.; Trusov, V.; Tsurugai, T.; Turcato, M.; Turkot, O.; Tymieniecka, T.; Vazquez, M.; Verbytskyi, A.; Viazlo, O.; Vlasov, N. N.; Walczak, R.; Abdullah, W. A. T. Wan; Whitmore, J. J.; Wichmann, K.; Wing, M.; Wlasenko, M.; Wolf, G.; Wolfe, H.; Wrona, K.; Yaguees-Molina, A. G.; Yamada, S.; Yamazaki, Y.; Yoshida, R.; Youngman, C.; Zabiegalov, O.; Zarnecki, A. F.; Zawiejski, L.; Zenaiev, O.; Zeuner, W.; Zhautykov, B. O.; Zhmak, N.; Zichichi, A.; Zolkapli, Z.; Zotkin, D. S.

    2012-01-01

    The production of isolated high-energy photons accompanied by jets has been measured in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb(-1). Measurements were made for exchanged photon virtualities Q(2), in the range 10 to 350 GeV2. The photons w

  15. Clinical accompaniment: the critical care nursing students’ experiences in a private hospital

    N. Tsele

    2000-09-01

    Full Text Available The quality of clinical accompaniment of the student enrolled for the post-basic diploma in Medical and Surgical Nursing Science: Critical Care Nursing (General is an important dimension of the educational/learning programme. The clinical accompanist/mentor is responsible for ensuring the student’s compliance with the clinical outcomes of the programme in accordance with the requirements laid down by the Nursing Education Institution and the South African Nursing Council. The purpose of this study was to explore and describe the experiences of the students enrolled for a post-basic diploma in Medical and Surgical Nursing Science: Critical Care Nursing (General, in relation to the clinical accompaniment in a private hospital in Gauteng. An exploratory, descriptive and phenomenological research design was utilised and individual interviews were conducted with the ten students in the research hospital. A content analysis was conducted and the results revealed both positive and negative experiences by the students in the internal and external worlds. The recommendations include the formulation of standards for clinical accompaniment of students. the evaluation of the quality of clinical accompaniment of students and empowerment of the organisation, clinical accompanists/mentors and clinicians.

  16. 30 CFR 250.223 - What mitigation measures information must accompany the EP?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What mitigation measures information must... INTERIOR OFFSHORE OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF Plans and Information Contents of Exploration Plans (ep) § 250.223 What mitigation measures information must accompany the EP?...

  17. 30 CFR 250.254 - What mitigation measures information must accompany the DPP or DOCD?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What mitigation measures information must... Information Contents of Development and Production Plans (dpp) and Development Operations Coordination Documents (docd) § 250.254 What mitigation measures information must accompany the DPP or DOCD? (a) If...

  18. Effects of Music Instruction with Bamboo Xylophone Accompaniment on Singing Achievement among Second-Grade Children

    Simeon, Jinky Jane C.; Ku, Agnes Chun Moi

    2015-01-01

    The aim of this research is to determine the effect of music instruction with bamboo xylophone as harmonic accompaniment on the singing achievement of second-grade children. Eighty children (N = 80) from four randomly selected classes in two different public schools in the city of Kota Kinabalu participated in this study and they were assigned to…

  19. String Instrument Intonation in Upper and Lower Registers: The Effects of Accompaniment.

    Kantorski, Vincent J.

    1986-01-01

    Investigated the effects of different accompaniment and register conditions on string instrumentalists' intonation performance of scalar passages. Both upper and lower register performances were significantly sharper than the computer-generated model. Violinist evidenced the least deviation, followed in order by violists, cellists, and bassists.…

  20. Handbook of Remedial or Developmental Activities to Accompany the Illinois Test of Psycholinguistic Abilities.

    Brown, Drucilla, Comp.

    This handbook, intended to accompany the Illinois Test of Psycholinguistic Abilities, describes numerous remedial and developmental activities for perceptual motor and psychomotor skills. Observable classroom behaviors associated with various perceptual motor and psychomotor disabilities (visual-motor channel disability, auditory-vocal channel…

  1. 41 CFR 101-25.110-3 - Tires accompanying new motor vehicles.

    2010-07-01

    ... motor vehicles. 101-25.110-3 Section 101-25.110-3 Public Contracts and Property Management Federal...-GENERAL 25.1-General Policies § 101-25.110-3 Tires accompanying new motor vehicles. The tire identifications and recordkeeping regulations issued by the Department of Transportation require each...

  2. 30 CFR 250.243 - What general information must accompany the DPP or DOCD?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What general information must accompany the DPP or DOCD? 250.243 Section 250.243 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE... Contents of Development and Production Plans (dpp) and Development Operations Coordination Documents...

  3. Analysis on the environmental problems accompanying the high-speed urbanization of small towns in China

    2002-01-01

    The environmental problems accompanying the rapid urbanization of many small towns like Keqiao, SHaoxing County, and their countermeasures are presented. To settle these problems rationally as well as effectively will not only conduce to boost the environmental quality and life quality of cities, but also help to promote the development of regional economy and the realization of sustainable development.

  4. UNIQUENESS OF LIMIT CYCLE FOR A CLASS OF QUARTIC SYSTEM ACCOMPANYING WITH QUADRATIC SYSTEM

    2008-01-01

    In this paper,we consider a class of quartic system,which is more general and realistic than the quartic accompanying system. Consequently,we obtain sufficient conditions concerning the uniqueness of limit cycle as well as some other in-depth conclusions.

  5. STUDY OF THE GAMMA EMISSION PROBABILITY ACCOMPANYING THE SPONTANEOUS FISSION OF CF-252

    VANDERPLOEG, H; LAURENS, CR; BACELAR, JCS; BUDA, A; GAARDHOJE, JJ; VANTHOF, G; KALANTARNAYESTANAKI, N; VANDERWOUDE, A; ZELAZNY, Z

    1994-01-01

    A study of the gamma emission accompanying the spontaneous fission process of Cf-252 has been performed. The photon emission probability between 3 and 70 MeV and its angular dependence with respect to the fission direction were measured. These measurements were performed as a function of the mass as

  6. 30 CFR 250.226 - What Coastal Zone Management Act (CZMA) information must accompany the EP?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What Coastal Zone Management Act (CZMA) information must accompany the EP? 250.226 Section 250.226 Mineral Resources MINERALS MANAGEMENT SERVICE... and Information Contents of Exploration Plans (ep) § 250.226 What Coastal Zone Management Act...

  7. 76 FR 69738 - Revised 2011 Annual Telecommunications Reporting Worksheet (FCC Form 499-A) and Accompanying...

    2011-11-09

    ... COMMISSION Revised 2011 Annual Telecommunications Reporting Worksheet (FCC Form 499-A) and Accompanying... Competition Bureau released the revised Telecommunications Reporting Worksheet (FCC Form 499-A) and... Competition Bureau, Telecommunications Access Policy Division, at (202) 418-7400 or via the Internet...

  8. Changes in Illness-Related Behavior and Dysphoria Accompanying Behavioral Treatment of Recurrent Headache.

    Rains, Jeanetta C.; Lohr, Jeffrey M.

    Psychophysiologic research indicates that muscle-contraction headache often is not characterized by excessive or unusual muscular activity, and muscular changes seldom accompany headache improvement resulting from treatment. Multidimensional models have been proposed, which emphasize the interdependence of physiological and psychological systems…

  9. Accompanying Symptoms Overlap during Attacks in Menière’s Disease and Vestibular Migraine

    Lopez-Escamez, Jose Antonio; Dlugaiczyk, Julia; Jacobs, Julien; Lempert, Thomas; Teggi, Roberto; von Brevern, Michael; Bisdorff, Alexandre

    2014-01-01

    Menière’s disease and vestibular migraine (VM) are the most common causes of spontaneous recurrent vertigo. The current diagnostic criteria for the two disorders are mainly based on patients’ symptoms, and no biological marker is available. When applying these criteria, an overlap of the two disorders is occasionally observed in clinical practice. Therefore, the present prospective multicenter study aimed to identify accompanying symptoms that may help to differentiate between MD, VM, and probable vestibular migraine (pVM). Two hundred and sixty-eight patients were included in the study (MD: n = 119, VM: n = 84, pVM: n = 65). Patients with MD suffered mainly from accompanying auditory symptoms (tinnitus, fullness of ear, and hearing loss), while accompanying migraine symptoms (migraine-type headache, photo-/phonophobia, visual aura), anxiety, and palpitations were more common during attacks of VM. However, it has to be noted that a subset of MD patients also experienced (migraine-type) headache during the attacks. On the other hand, some VM/pVM patients reported accompanying auditory symptoms. The female/male ratio was statistically higher in VM/pVM as compared to MD, while the age of onset was significantly lower in the former two. The frequency of migraine-type headache was significantly higher in VM as compared to both pVM and MD. Accompanying headache of any type was observed in declining order in VM, pVM, and MD. In conclusion, the present study confirms a considerable overlap of symptoms in MD, VM, and pVM. In particular, we could not identify any highly specific symptom for one of the three entities. It is rather the combination of symptoms that should guide diagnostic reasoning. The identification of common symptom patterns in VM and MD may help to refine future diagnostic criteria for the two disorders. PMID:25566172

  10. Director`s series on proliferation

    Bailey, K.C. [ed.

    1993-09-07

    Two essays are included in this booklet. Their titles are ``The Dynamics of the NPT Extension Decision`` and ``North Korea`s Nuclear Gambit.`` The first paper discusses the conference to be held in 1995 to review the Nuclear Non-Proliferation Treaty (NPT) which will decide whether the treaty shall continue in force indefinitely, or shall be extended for an additional fixed period or periods. Topics relevant to this discussion are: Arms control issues, the nuclear test ban, the limited test ban treaty, the French nuclear testing moratorium, former Soviet nuclear weapons, Iraq, North Korea, nuclear-weapon-free zones, security, controls on nuclear weapon materials, peaceful uses of nuclear energy, safeguards, politics, and organizational and procedural issues. The second paper examines short, medium, and long term issues entailed in Korea`s nuclear proliferation. Topics considered include: Korean unification, North Korean politics, the nuclear issue as leverage, and the Nuclear Non- Proliferation Treaty.

  11. Director`s series on proliferation

    Bailey, K.C.; Price, M.E. [eds.

    1994-12-27

    The Director`s Series on Proliferation is an occasional publication of essays on the topics of nuclear, chemical, biological, and missile proliferation. The seven papers presented in this issue cover the following topics: Should the Treaty on the Nonproliferation of Nuclear Weapons (NPT) be amended?; NPT extension - Legal and procedural issues; An Indonesian view of NPT review conference issues; The treaty of Tlatelolco and the NPT - Tools for peace and development; Perspectives on cut-off, weapons dismantlement, and security assurances; Belarus and NPT challenges; A perspective on the chemical weapons convention - Lessons learned from the preparatory commission.

  12. Preliminary calculation of proliferation resistance of Pyroprocess

    Yeop, Joung Sung; Chang, Soon Heung [Korea Advanced Institute Science and Technology, Daejeon (Korea, Republic of)

    2010-10-15

    We measured the proliferation resistance of Pyroprocess by using multi-attribute utility analysis method. This methodology is intended to allow for the assessment of the effectiveness of safeguards implementation at facilities within a large-scale fuel cycle and allow for the ability to choose technologies based in part on their effectiveness to deter the proliferation of nuclear materials. Pyroprocess may be the part of new Fuel cycle that includes PWR, fuel storage facilities, Pryoprocessing facilities, SFR, fuel repository facilities. In this paper we only focused on Pyroprocessing facilities as a single process

  13. Proliferation risks; Proliferatierisico's

    Carchon, R

    1998-09-01

    The report gives an overview of different aspects related to safeguards of fissile materials. Existing treaties including the Non-Proliferation Treaty, and the Tlatelolco and the Rarotonga Treaties are discussed. An overview of safeguards systems for the control of fissile materials as well as the role of various authorities is given. An overall overview of proliferation risks, the physical protection of fissile materials and the trade in fissile materials is given. Finally, the status in problem countries and de facto nuclear weapon states is discussed.

  14. Molecular crowding defines a common origin for the Warburg effect in proliferating cells and the lactate threshold in muscle physiology.

    Alexei Vazquez

    Full Text Available Aerobic glycolysis is a seemingly wasteful mode of ATP production that is seen both in rapidly proliferating mammalian cells and highly active contracting muscles, but whether there is a common origin for its presence in these widely different systems is unknown. To study this issue, here we develop a model of human central metabolism that incorporates a solvent capacity constraint of metabolic enzymes and mitochondria, accounting for their occupied volume densities, while assuming glucose and/or fatty acid utilization. The model demonstrates that activation of aerobic glycolysis is favored above a threshold metabolic rate in both rapidly proliferating cells and heavily contracting muscles, because it provides higher ATP yield per volume density than mitochondrial oxidative phosphorylation. In the case of muscle physiology, the model also predicts that before the lactate switch, fatty acid oxidation increases, reaches a maximum, and then decreases to zero with concomitant increase in glucose utilization, in agreement with the empirical evidence. These results are further corroborated by a larger scale model, including biosynthesis of major cell biomass components. The larger scale model also predicts that in proliferating cells the lactate switch is accompanied by activation of glutaminolysis, another distinctive feature of the Warburg effect. In conclusion, intracellular molecular crowding is a fundamental constraint for cell metabolism in both rapidly proliferating- and non-proliferating cells with high metabolic demand. Addition of this constraint to metabolic flux balance models can explain several observations of mammalian cell metabolism under steady state conditions.

  15. Induction of cell proliferation in the rat liver by the short-term administration of ethyl tertiary-butyl ether.

    Kakehashi, Anna; Hagiwara, Akihiro; Imai, Norio; Wei, Min; Fukushima, Shoji; Wanibuchi, Hideki

    2015-01-01

    In the present study, in continuation of our previous experiment in order to investigate the mode of action (MOA) of ethyl tertiary-butyl ether (ETBE) hepatotumorigenicity in rats, we aimed to examine alterations in cell proliferation, that are induced by short-term administration of ETBE. F344 rats were administered ETBE at doses of 0, and 1,000 mg/kg body weight twice a day by gavage for 3, 10, 17 and 28 days. It was found that the previously observed significant increase of P450 total content and hydroxyl radical levels after 7 days of ETBE administration, and 8-OHdG formation at day 14, accompanied by accumulation of CYP2B1/2B2, CYP3A1/3A2, CYP2C6, CYP2E1 and CYP1A1 and downregulation of DNA oxoguanine glycosylase 1, was preceded by induction of cell proliferation at day 3. Furthermore, we observed an increase in regenerative cell proliferation as a result of ETBE treatment at day 28, followed by induction of cell cycle arrest and apoptosis by day 14. These results indicated that short-term administration of ETBE led to a significant early increase in cell proliferation activity associated with induction of oxidative stress, and to a regenerative cell proliferation as an adaptive response, which could contribute to the hepatotumorigenicity of ETBE in rats.

  16. Proliferation Security Initiative: Origins and Evolution

    2012-06-01

    John Rood offered a typi- cally vague description of PSI interdictions, as well as an explanation for the lack of more detailed public information...September 2011. 73 “Proliferation Security Initiative: John Rood , Acting Under Secretary of State for Arms Control and International Security

  17. Microfluidic devices for cell cultivation and proliferation

    Tehranirokh, Masoomeh; Kouzani, Abbas Z.; Francis, Paul S.; Kanwar, Jagat R.

    2013-01-01

    Microfluidic technology provides precise, controlled-environment, cost-effective, compact, integrated, and high-throughput microsystems that are promising substitutes for conventional biological laboratory methods. In recent years, microfluidic cell culture devices have been used for applications such as tissue engineering, diagnostics, drug screening, immunology, cancer studies, stem cell proliferation and differentiation, and neurite guidance. Microfluidic technology allows dynamic cell cul...

  18. Does programmed CTL proliferation optimize virus control?

    Wodarz, Dominik; Thomsen, Allan Randrup

    2005-01-01

    CD8 T-cell or cytotoxic T-lymphocyte responses develop through an antigen-independent proliferation and differentiation program. This is in contrast to the previous thinking, which was that continuous antigenic stimulation was required. This Opinion discusses why nature has chosen the proliferati...

  19. Strengthening the foundations of proliferation assessment tools.

    Rexroth, Paul E.; Saltiel, David H.; Rochau, Gary Eugene; Cleary, Virginia D.; Ng, Selena (AREVA NC, Paris, France); Greneche, Dominique (AREVA NC, Paris, France); Giannangeli, Don (Texas A& M University, College Station, TX); Charlton, William S. (Texas A& M University, College Station, TX); Ford, David (Texas A& M University, College Station, TX)

    2007-09-01

    Robust and reliable quantitative proliferation assessment tools have the potential to contribute significantly to a strengthened nonproliferation regime and to the future deployment of nuclear fuel cycle technologies. Efforts to quantify proliferation resistance have thus far met with limited success due to the inherent subjectivity of the problem and interdependencies between attributes that lead to proliferation resistance. We suggest that these limitations flow substantially from weaknesses in the foundations of existing methodologies--the initial data inputs. In most existing methodologies, little consideration has been given to the utilization of varying types of inputs--particularly the mixing of subjective and objective data--or to identifying, understanding, and untangling relationships and dependencies between inputs. To address these concerns, a model set of inputs is suggested that could potentially be employed in multiple approaches. We present an input classification scheme and the initial results of testing for relationships between these inputs. We will discuss how classifying and testing the relationship between these inputs can help strengthen tools to assess the proliferation risk of nuclear fuel cycle processes, systems, and facilities.

  20. Nuclear war, nuclear proliferation, and their consequences

    Sanruddin, A.K.

    1986-01-01

    The proceedings of a colloquium convened by the Groupe de Bellerive offers the contributions of Carl Sagan, Gabriel Garcia Marquez, Kenneth Galbraith, Pierre Trudeau, Edward Kennedy, and other eminent scientists, politicians, and strategists on the subject of the proliferation of nuclear weaponry and its potential ramifications.

  1. Quotidian of accompanying family members in an environment of care: the emergence of hospital tribes

    Silvia da Silva Santos Passos

    2016-06-01

    Full Text Available ABSTRACT OBJECTIVE Understand the quotidian relationships of accompanying family members in an environment of care, which are close to the metaphor of a tribe in hospital environment. METHODQualitative study with data gathered from semi-structured interviews and observations with 16 family members accompanying hospitalized individuals with dependence on self-care. Data were submitted to thematic analysis, and analyzed through the metaphor of "tribe" proposed by comprehensive sociology. RESULTS Family members build up social clusters around caring, where we find traits typical of tribes: emotional ambience; solidarity based on links of sympathy and mutual assistance; an affectual nebula in the process of interaction; a logic of fusion in tactile relations; and communion/religiosity in the process of connecting in a collective identity. CONCLUSION In the presence of tragedy, families build social clusters similar to tribes having care as a totem.

  2. Triple Peripheral Nerve Injury Accompanying to Traumatic Brain Injury: A Case Report

    Ižlknur Can

    2014-02-01

    Full Text Available Secondary injuries especially extremity fractures may be seen concurrently with traumatic brain injury (TBI. Peripheral nerve damages may accompany to these fractures and may be missed out, especially in acute stage. In this case report; damage of radial, ulnar and median nerves which was developed secondarily to distal humerus fracture that could not be detected in acute stage, in a patient who had motor vehicle accident (MVA. 29-year-old male patient was admitted with weakness in the right upper extremity. 9 months ago, he had traumatic brain injury because of MVA, and fracture of distal humerus was detected in follow-ups. Upon the suspect of the peripheral nerve injury, the diagnosis was confirmed with ENMG. The patient responded well to the rehabilitation program treatment. In a TBI patient, it must be kept in mind that there might be a secondary trauma and therefore peripheral nerve lesions may accompany to TBI.

  3. Pitch-informed solo and accompaniment separation towards its use in music education applications

    Cano, Estefanía; Schuller, Gerald; Dittmar, Christian

    2014-12-01

    We present a system for the automatic separation of solo instruments and music accompaniment in polyphonic music recordings. Our approach is based on a pitch detection front-end and a tone-based spectral estimation. We assess the plausibility of using sound separation technologies to create practice material in a music education context. To better understand the sound separation quality requirements in music education, a listening test was conducted to determine the most perceptually relevant signal distortions that need to be improved. Results from the listening test show that solo and accompaniment tracks pose different quality requirements and should be optimized differently. We propose and evaluate algorithm modifications to better understand their effects on objective perceptual quality measures. Finally, we outline possible ways of optimizing our separation approach to better suit the requirements of music education applications.

  4. Grain growth and thermal stability accompanying recrystallization in undercooled Ni-3at.%Sn alloy

    Chen, Z., E-mail: chenzheng1218@163.com [School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116 (China); State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi' an, Shaanxi 710016 (China); Chen, Q.; Shen, C.J. [School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116 (China); Liu, F. [State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi' an, Shaanxi 710016 (China)

    2015-10-15

    The grain growth and thermal stability after recrystallization in as-solidified highly undercooled Ni-3at.%Sn alloy melt were investigated. As for undercooled Ni-3at.%Sn alloy, a transition from dendritic to granular crystals occurred when ΔT≥ΔT{sup *}, which was induced by the plastic deformation of dendrites and subsequent recrystallization. On this basis, the subsequent grain growth and solute segregation accompanying recalescence were calculated by a recently proposed thermo-kinetic model, which showed close agreement with the experimental results. It is concluded that the grain growth process was interrelated to recalescence, solute trapping and solute segregation of Sn atoms captured by solute trapping, which was responsible for the reduction of grain boundary energy and improvement of thermal stability. - Highlights: • A transition from dendritic to granular crystals occurred when ΔT≥ΔT{sup *}. • The grain growth accompanying recalescence was calculated. • A close agreement with the experimental results was shown.

  5. Prevalence of open angle glaucoma in accompanying first degree relatives of patients with glaucoma

    Franciele Vegini

    2008-01-01

    Full Text Available OBJECTIVE: The aim of this study was to determine the prevalence of open angle glaucoma in first-degree relatives accompanying POAG patients during routine examination in a reference hospital. METHOD: First-degree relatives of primary open angle glaucoma patients who accompanied their relatives to the glaucoma service of a reference hospital were screened for glaucoma. RESULTS: One-hundred and one first-degree relatives were examined, of which 56.4% had never had their intraocular pressure measured. 10.9% had previously been diagnosed with glaucoma, and 5.9% were newly diagnosed during this study. CONCLUSIONS: The eye examination of first-degree relatives identified a significant percentage of individuals with glaucoma. Despite being first-degree relatives of glaucoma patients, 56.4% of the companions had never had their eye pressure measured, demonstrating a lack of awareness about this disease.

  6. Nuclear non proliferation and disarmament; Non-proliferation nucleaire et desarmement

    NONE

    2000-07-01

    In the framework of the publication of a document on the ''weapons mastership, disarmament and non proliferation: the french action'', by the ministry of Foreign Affairs and the ministry of Defense, the French Documentation organization presents a whole document. This document describes and details the following topics: the conference on the treaty of non proliferation of nuclear weapons, the France, Usa and Non Governmental Organizations position, the threats of the proliferation, the french actions towards the disarmament, the disarmament in the world, a chronology and some bibliographic resources. (A.L.B.)

  7. Colonic perforation in a patient with systemic lupus erythematosus accompanied by cytomegalovirus infection: A case report

    Yuichi Tachikawa; Hiroaki Nozawa; Junichiro Tanaka; Takeshi Nishikawa; Toshiaki Tanaka; Tomomichi Kiyomatsu; Keisuke Hata; Kazushige Kawai; Shinsuke Kazama; Hironori Yamaguchi; Soichiro Ishihara; Eiji Sunami; Joji Kitayama; Madoka Fujisawa; Katutoshi Takahashi

    2016-01-01

    Introduction: Cytomegalovirus (CMV) infection of the gastrointestinal tract is an uncommon illness, but can be observed in immunocompromised patients. Systemic lupus erythematosus (SLE) patients are generally at high risk of CMV infection. Here we report a subacute progressive case of colitis in SLE accompanied by cytomegalovirus infection. Presentation of case: The patient, a 79-year-old woman, was hospitalized complaining of fever, polyarthritis, and skin ulcer that had lasted seven days...

  8. HIFI: a computer code for projectile fragmentation accompanied by incomplete fusion

    Wu, J.R.

    1980-07-01

    A brief summary of a model proposed to describe projectile fragmentation accompanied by incomplete fusion and the instructions for the use of the computer code HIFI are given. The code HIFI calculates single inclusive spectra, coincident spectra and excitation functions resulting from particle-induced reactions. It is a multipurpose program which can calculate any type of coincident spectra as long as the reaction is assumed to take place in two steps.

  9. EVALUATION OF INFLAMMATORY CHANGES IN JOINTS AT PATIENTS WITH HEMOPHILIA ACCOMPANIED RECURRENT HEMARTHROSIS

    I. L. Davydkin; Y. A. Kosyakova; Y. V. Lartsev; A V Kapishnikov

    2012-01-01

    Objective: to search for new diagnostic approaches for estimating the prevalence of posthemorrhagic phase of inflammation in the joints of patients with hemophilia accompanied recurrent hemarthrosis. Using the method of computerized infrared thermography measured the temperature above the knee, ankle and lower leg. Analysis of the data held with a specially developed algorithm that forms the basis of a computer program for computer (2009). It is established that with increasing temperature ov...

  10. A case of recurrent complex regional pain syndrome accompanying Raynaud's disease: a prospective coincidence?

    Kesikburun, Serdar; Günendi, Zafer; Aydemir, Koray; Özgül, Ahmet; Tan, Arif Kenan

    2013-01-01

    Complex regional pain syndrome (CPRS) and Raynaud's disease are disorders characterized by vasomotor disturbances associating with abnormal autonomic nervous system. We present a case of CRPS involving a history of recurrence and no initiating event. Raynaud's disease accompanying CRPS was diagnosed clinically in the patient. We propose that a sympathetic dysfunction underlies the pathophysiologies of both disorders and may be responsible for the coexistence of these two distinct entities. Recurrence and unknown etiology of CRPS might account for temporary alterations in sympathetic function.

  11. Frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele: case report

    Akkuzu Guzin; Aydin Erdinc; Akkuzu Babur; Bilezikci Banu

    2006-01-01

    Abstract Background Mucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common. Case presentation A case of a frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele is reported. A 77 year old...

  12. The Stress and Vascular Catastrophes in Newborn Rats: Mechanisms Preceding and Accompanying the Brain Hemorrhages

    Semyachkina-Glushkovskaya, Oxana; Borisova, Ekaterina; Abakumov, Maxim; Gorin, Dmitry; Avramov, Latchezar; Fedosov, Ivan; Namykin, Anton; Abdurashitov, Arkady; Serov, Alexander; Pavlov, Alexey; Zinchenko, Ekaterina; Lychagov, Vlad; Navolokin, Nikita; Shirokov, Alexander; Maslyakova, Galina; Zhu, Dan; Luo, Qingming; Chekhonin, Vladimir; Tuchin, Valery; Kurths, Jürgen

    2016-01-01

    In this study, we analyzed the time-depended scenario of stress response cascade preceding and accompanying brain hemorrhages in newborn rats using an interdisciplinary approach based on: a morphological analysis of brain tissues, coherent-domain optical technologies for visualization of the cerebral blood flow, monitoring of the cerebral oxygenation and the deformability of red blood cells (RBCs). Using a model of stress-induced brain hemorrhages (sound stress, 120 dB, 370 Hz), we studied changes in neonatal brain 2, 4, 6, 8 h after stress (the pre-hemorrhage, latent period) and 24 h after stress (the post-hemorrhage period). We found that latent period of brain hemorrhages is accompanied by gradual pathological changes in systemic, metabolic, and cellular levels of stress. The incidence of brain hemorrhages is characterized by a progression of these changes and the irreversible cell death in the brain areas involved in higher mental functions. These processes are realized via a time-depended reduction of cerebral venous blood flow and oxygenation that was accompanied by an increase in RBCs deformability. The significant depletion of the molecular layer of the prefrontal cortex and the pyramidal neurons, which are crucial for associative learning and attention, is developed as a consequence of homeostasis imbalance. Thus, stress-induced processes preceding and accompanying brain hemorrhages in neonatal period contribute to serious injuries of the brain blood circulation, cerebral metabolic activity and structural elements of cognitive function. These results are an informative platform for further studies of mechanisms underlying stress-induced brain hemorrhages during the first days of life that will improve the future generation's health. PMID:27378933

  13. Modified Latarjet Procedure for Patients with Glenoid Bone Defect Accompanied with Anterior Shoulder Instability.

    Demirhan, Mehmet Selahattin; Atalar, Ata Can; Bilsel, Kerem; Eren, İlker; Çelik, Derya; Çil, Hilal

    2013-01-01

    Abstract: Objective: The aim of this study was to assess the effects of coracoid bone block (modified Latarjet) procedure on clinical and functional results in cases with glenoid bone defect accompanied with anterior shoulder instability. Methods: The study included 35 patients (average age: 35 years; range: 20 to 58 years) with glenoid bone defect and recurrent dislocations treated with the modified Latarjet procedure. There were 12 sports injuries, 5 post-epileptic cases and 18 recurrent an...

  14. Multiple dental anomalies accompany unilateral disturbances in abducens and facial nerves: A case report

    Elham Talatahari

    2016-01-01

    Full Text Available This article describes the oral rehabilitation of an 8-year-old girl with extensively affected primary and permanent dentition. This report is unique in which distinct dental anomalies including enamel hypoplasia, irregular dentin formation, taurodontism, hpodontia and dens in dente accompany unilateral disturbance of abducens and facial nerves which control the lateral eye movement, and facial expression, respectively.   Keywords: enamel hypoplasia; irregular dentin formation; taurodontism; hypodontia; dens in dente; abducens and facial nerves;

  15. Blue light inhibits proliferation of melanoma cells

    Becker, Anja; Distler, Elisabeth; Klapczynski, Anna; Arpino, Fabiola; Kuch, Natalia; Simon-Keller, Katja; Sticht, Carsten; van Abeelen, Frank A.; Gretz, Norbert; Oversluizen, Gerrit

    2016-03-01

    Photobiomodulation with blue light is used for several treatment paradigms such as neonatal jaundice, psoriasis and back pain. However, little is known about possible side effects concerning melanoma cells in the skin. The aim of this study was to assess the safety of blue LED irradiation with respect to proliferation of melanoma cells. For that purpose we used the human malignant melanoma cell line SK-MEL28. Cell proliferation was decreased in blue light irradiated cells where the effect size depended on light irradiation dosage. Furthermore, with a repeated irradiation of the melanoma cells on two consecutive days the effect could be intensified. Fluorescence-activated cell sorting with Annexin V and Propidium iodide labeling did not show a higher number of dead cells after blue light irradiation compared to non-irradiated cells. Gene expression analysis revealed down-regulated genes in pathways connected to anti-inflammatory response, like B cell signaling and phagosome. Most prominent pathways with up-regulation of genes were cytochrome P450, steroid hormone biosynthesis. Furthermore, even though cells showed a decrease in proliferation, genes connected to the cell cycle were up-regulated after 24h. This result is concordant with XTT test 48h after irradiation, where irradiated cells showed the same proliferation as the no light negative control. In summary, proliferation of melanoma cells can be decreased using blue light irradiation. Nevertheless, the gene expression analysis has to be further evaluated and more studies, such as in-vivo experiments, are warranted to further assess the safety of blue light treatment.

  16. In Vitro Endothelial Cell Proliferation Assay Reveals Distinct Levels of Proangiogenic Cytokines Characterizing Sera of Healthy Subjects and of Patients with Heart Failure

    Rebecca Voltan

    2014-01-01

    Full Text Available Although myocardial angiogenesis is thought to play an important role in heart failure (HF, the involvement of circulating proinflammatory and proangiogenic cytokines in the pathogenesis and/or prognosis of HF has not been deeply investigated. By using a highly standardized proliferation assay with human endothelial cells, we first demonstrated that sera from older (mean age 52±7.6 years; n=46 healthy donors promoted endothelial cell proliferation to a significantly higher extent compared to sera obtained from younger healthy donors (mean age 29±8.6 years; n=20. The promotion of endothelial cell proliferation was accompanied by high serum levels of several proangiogenic cytokines. When we assessed endothelial cell proliferation in response to HF patients’ sera, we observed that a subset of sera (n=11 promoted cell proliferation to a significantly lesser extent compared to the majority of sera (n=18. Also, in this case, the difference between the patient groups in the ability to induce endothelial cell proliferation correlated to significant (P<0.05 differences in serum proangiogenic cytokine levels. Unexpectedly, HF patients associated to the highest endothelial proliferation index showed the worst prognosis as evaluated in terms of subsequent cardiovascular events in the follow-up, suggesting that high levels of circulating proangiogenic cytokines might be related to a worse prognosis.

  17. The strain of an accompanying conspecific affects the efficacy of social buffering in male rats.

    Nakamura, Kayo; Ishii, Akiko; Kiyokawa, Yasushi; Takeuchi, Yukari; Mori, Yuji

    2016-06-01

    Social buffering is a phenomenon in which stress in an animal is ameliorated when the subject is accompanied by a conspecific animal(s) during exposure to distressing stimuli. We previously reported that in male Wistar rats, the presence of another Wistar rat mitigates conditioned fear responses to an auditory conditioned stimulus (CS). Subsequent analyses revealed several characteristics of this social buffering of conditioned fear responses. However, information regarding the specificity of accompanying conspecifics is still limited. In the present study, we assessed whether rats of other strains could induce social buffering in Wistar rats. When a fear-conditioned Wistar subject was re-exposed to the CS alone, we observed increased freezing and decreased investigation and walking, as well as elevated corticosterone levels. The presence of a Wistar, Sprague-Dawley, or Long-Evans rat blocked these responses, suggesting that social buffering was induced by these strains of rats. In contrast, a Fischer 344 rat did not induce social buffering in the Wistar subject. We further found that an inbred Lewis rat induced social buffering whereas a Brown Norway rat, a strain that has been established independently from Wistar rats, did not. These results suggest that the difference in origin, rather than the inbred or outbred status of the associate rat, seemed to account for the lack of social buffering induced by the F344 rats. Based on these findings, we conclude that strains of an accompanying conspecific can affect the efficacy of social buffering in rats.

  18. Retrospective study of mechanical ventilation in treating multiple trauma accompanied with cranicvervbral injury

    2001-01-01

    Objective: To explore the importance of mechanic al ventilation (MV) in treating multiple trauma mainly accompanied with cerebral injury and improve the treatment level.   Methods: All 116 patients who suffered from multiple trauma acc ompanied with mainly cerebral injury were analyzed. Rank correlation and Chi-sq uare test were made between MV with GCS, ISS, and whether shock or not.   Results: The MV was correlated with GCS, ISS scores, and whethe r shock or not markedly. Furthermore, when GCS≤8, the ratio of MV was about 70% . When ISS≥35, the ratio of MV was about 85%.   Conclusions: During the treatment of multiple trauma accompanie d with cerebral injury, the principle of “early MV, early withdraw” and “indi vidualism” should be insisted on. For patients accompanied with shock, the opti mum PEEP is very important. Proper and active MV is of great importance and can improve the treatment level markedly.

  19. Light charged particle accompanied ternary fission of {sup 242}Cm using the Coulomb and proximity potential

    Santhosh, K.P.; Krishnan, Sreejith; Priyanka, B. [Kannur University, School of Pure and Applied Physics, Kerala (India)

    2014-04-15

    The cold ternary fission of {sup 242}Cm with {sup 4}He, {sup 10}Be and {sup 14}C as light charged particle has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential with the fragments in equatorial configuration. The favorable fragment combinations are obtained from the cold valley plot (plot of driving potential vs. mass number of fragments) and by calculating the yield for charge minimized fragments. The maximum yield in the {sup 4}He accompanied ternary fission is obtained for the fragmentation channel {sup 104}Mo + {sup 134}Te + {sup 4}He and for the {sup 10}Be accompanied ternary fission, the maximum yield is found for the fragmentation channel {sup 98}Zr + {sup 134}Te + {sup 10}Be. It is to be noted that, in the case of {sup 14}C accompanied ternary fission, the maximum yield is obtained for the fragmentation channel {sup 94}Sr + {sup 134}Te + {sup 14}C and the next higher yield is found for the fragmentation channel {sup 96}Zr + {sup 132}Sn + {sup 14}C. Thus, the fragment combinations with maximum yields reveal the role of doubly magic and near doubly magic nuclei in cold ternary fission. (orig.)

  20. A novel schiff base zinc coordination compound inhibits proliferation and induces apoptosis of human osteosarcoma cells.

    Yan, Ming; Pang, Li; Ma, Tan-tan; Zhao, Cheng-liang; Zhang, Nan; Yu, Bing-xin; Xia, Yan

    2015-10-01

    Various kinds of schiff base metal complexes have been proven to induce apoptosis of tumor cells. However, it remains largely unknown whether schiff base zinc complexes induce apoptosis in human cancer cells. Here, we synthesized a novel schiff base zinc coordination compound (SBZCC) and investigated its effects on the growth, proliferation and apoptosis of human osteosarcoma MG-63 cells. A novel SBZCC was synthesized by chemical processes and used to treat MG-63 cells. The cell viability was determined by CCK-8 assay. The cell cycle progression, mitochondrial membrane potential and apoptotic cells were analyzed by flow cytometry. The apoptosis-related proteins levels were determined by immunoblotting. Treatment of MG-63 cells with SBZCC resulted in inhibition of cell proliferation and cell cycle arrest at G1 phase. Moreover, SBZCC significantly reduced the mitochondrial membrane potential and induced apoptosis, accompanied with increased Bax/Bcl-2 and FlasL/Fas expression as well as caspase-3/8/9 cleavage. Our results demonstrated that the synthesized novel SBZCC could inhibit the proliferation and induce apoptosis of MG-63 cells via activating both the mitochondrial and cell death receptor apoptosis pathways, suggesting that SBZCC is a promising agent for the development as anticancer drugs.

  1. The Antidiabetic Drug Metformin Inhibits the Proliferation of Bladder Cancer Cells in Vitro and in Vivo

    Tao Zhang

    2013-12-01

    Full Text Available Recent studies suggest that metformin, a widely used antidiabetic agent, may reduce cancer risk and improve prognosis of certain malignancies. However, the mechanisms for the anti-cancer effects of metformin remain uncertain. In this study, we investigated the effects of metformin on human bladder cancer cells and the underlying mechanisms. Metformin significantly inhibited the proliferation and colony formation of 5637 and T24 cells in vitro; specifically, metformin induced an apparent cell cycle arrest in G0/G1 phases, accompanied by a strong decrease of cyclin D1, cyclin-dependent kinase 4 (CDK4, E2F1 and an increase of p21waf-1. Further experiments revealed that metformin activated AMP-activated protein kinase (AMPK and suppressed mammalian target of rapamycin (mTOR, the central regulator of protein synthesis and cell growth. Moreover, daily treatment of metformin led to a substantial inhibition of tumor growth in a xenograft model with concomitant decrease in the expression of proliferating cell nuclear antigen (PCNA, cyclin D1 and p-mTOR. The in vitro and in vivo results demonstrate that metformin efficiently suppresses the proliferation of bladder cancer cells and suggest that metformin may be a potential therapeutic agent for the treatment of bladder cancer.

  2. Effects of bile acids on proliferation and ultrastructural alteration of pancreatic cancer cell lines

    Zheng Wu; Yi Lüi; Bo Wang; Chang Liu; Zuo-Ren Wang,

    2003-01-01

    AIM: Pancreatic cancer in the head is frequently accompanied by jaundice and high bile acid level in serum. This study focused on the direct effects of bile acids on proliferation and ultrastructural alteration of pancreatic cancer.METHODS: Pancreatic cancer cell lines PANC-1, MIA PaCa2 and PGHAM-1 were explored in this study. The cell lines were cultured in media supplemented with certain bile acids,CA, DCA, LCA, TCDC, TDCA and GCA. Their influence on cell growth was measured with MTT assay after 72 h of incubation. Cell cycles of PANC-1 cells in 40 μM of bile acids media were analyzed by flow cytometry. Ultrastructural alteration of PANC-1 cells induced by DCA was observed using scanning and transmission electron microscope (SEM and TEM).RESULTS: At various concentrations of bile acids and incubation time, no enhanced effects of bile acids on cell proliferation were observed. Significant inhibitory effects were obtained in almost all media with bile acids. DCA and CA increased the percentage of G0+G1 phase cells, while GCA and TDCA elevated the S phase cell number. After 48 h of incubation in DCA medium, PANC-1 cells showed some structural damages such as loss of their microvilli and vacuolization of organelles in cytoplasm.CONCLUSION: Bile acids can reduce proliferation of pancreatic cancer cells due to their direct cytotoxicity. This result implies that elevation of bile acids in jaundiced serum may inhibit pancreatic cancer progression.

  3. Defective CFTR-regulated granulosa cell proliferation in polycystic ovarian syndrome.

    Chen, Hui; Guo, Jing Hui; Zhang, Xiao Hu; Chan, Hsiao Chang

    2015-05-01

    Polycystic ovarian syndrome (PCOS) is one of the most frequent causes of female infertility, featured by abnormal hormone profile, chronic oligo/anovulation, and presence of multiple cystic follicles in the ovary. However, the mechanism underlying the abnormal folliculogenesis remains obscure. We have previously demonstrated that CFTR, a cAMP-dependent Cl(-) and HCO3 (-) conducting anion channel, is expressed in the granulosa cells and its expression is downregulated in PCOS rat models and human patients. In this study, we aimed to investigate the possible involvement of downregulation of CFTR in the impaired follicle development in PCOS using two rat PCOS models and primary culture of granulosa cells. Our results indicated that the downregulation of CFTR in the cystic follicles was accompanied by reduced expression of proliferating cell nuclear antigen (PCNA), in rat PCOS models. In addition, knockdown or inhibition of CFTR in granulosa cell culture resulted in reduced cell viability and downregulation of PCNA. We further demonstrated that CFTR regulated both basal and FSH-stimulated granulosa cell proliferation through the HCO3 (-)/sAC/PKA pathway leading to ERK phosphorylation and its downstream target cyclin D2 (Ccnd2) upregulation. Reduced ERK phosphorylation and CCND2 were found in ovaries of rat PCOS model compared with the control. This study suggests that CFTR is required for normal follicle development and that its downregulation in PCOS may inhibit granulosa cell proliferation, resulting in abnormal follicle development in PCOS.

  4. Devalued, deskilled and diversified: explaining the proliferation of the strip industry in the UK.

    Sanders, Teela; Hardy, Kate

    2012-09-01

    This paper looks beyond the debates that focus on the objectification of the female body to examine the question as to why strip clubs have proliferated and found a permanent place in the night-time economy in the UK. Using empirical qualitative and quantitative data from the largest study into the strip industry in the UK to date, we challenge the common assumption that 'demand' is responsible for the rise in erotic dance. Instead, we argue that the proliferation of strip clubs is largely due to the internal economic structures of the industry which have developed partly in response to the financial crisis beginning in 2008. First, we argue that clubs profit from individual dancers through an exploitative system of fees and fines, rendering a strip club business a low cost investment with high returns and little risk to club owners. Second, we note that the last decade has seen diversification of the industry accompanied by deskilling and devaluing of dancing and dancers' labour. Third, we demonstrate that despite the negative effects of these changes on workers, there has been an expansion of the industry as the ability to make profit, even during a financial crisis was ensured through the transferral of risk to workers. Overall, we suggest that far from proliferating as a response to demand, the industry has maintained its market presence due to its ability to establish highly financially exploitation employment relationships with dancers at a time of economic fragility.

  5. MicroRNA 181b promotes vascular smooth muscle cells proliferation through activation of PI3K and MAPK pathways.

    Li, Tie-Jun; Chen, Yan-Li; Gua, Chao-Jun; Xue, Sheng-Jiang; Ma, Shu-Mei; Li, Xiao-Dong

    2015-01-01

    Vascular smooth muscle cells (VSMCs) hyperplasia is a common feature of pathologic cardiovascular event such as restenosis and atherosclerosis. The role and mechanisms of microRNAs (miRs) in VSMCs proliferation are poorly understood. Here, we report that miR-181b promotes VSMCs proliferation and migration. In an animal model, miR-181b was significantly increased in the rat carotid artery after balloon catheter injury. Delivery of miR-181b inhibitor to injured artery exhibited a marked inhibition of neointimal hyperplasia. Transfection of miR-181b with "mimics" to A10 cells accelerated cell proliferation, which was accompanied by an increase of cell migration. The induction of A10 cells proliferation by miR-181b appeared to be involved in activation of S and G2/M checkpoint, concomitant with decreases in cell-cycle inhibitors p21 and p27, and increases in cell-cycle activators CDK4 and cyclinD1. In contract, miR-181b inhibition attenuated A10 cells proliferation, inhibited cell migration and arrested cell cycle transition. Moreover, forced miR-181b expression elevated the phosphorylation levels of Akt and Erk1/2, whereas inhibition of miR-181b produced the opposite effects. Additionally, inhibition of PI3K and MAPK signaling pathways with specific inhibitors, but not inhibition of JNK pathway, significantly abolished the effects of miR-181b in promoting cell proliferation. These findings demonstrate that miR-181b enhances the proliferation and migration of VSMCs through activation of PI3K and MAPK pathways.

  6. [Physiognomy-accompanying auditory hallucinations in schizophrenia: psychopathological investigation of 10 patients].

    Nagashima, Hideaki; Kobayashi, Toshiyuki

    2010-01-01

    We previously reported two schizophrenic patients with characteristic hallucinations consisting of auditory hallucinations accompanied by visual hallucinations of the speaker's face. The patient sees the face of the hallucinatory speaker in his/her mind and hears the voice talking inwardly. We termed these experiences physiognomy-accompanying auditory hallucinations. In this report, we present 10 patients with schizophrenia showing physiognomy-accompanying auditory hallucinations and evaluate the characteristics of these clinical symptoms. Moreover we consider what the symptoms mean for patients and the metabasis from structural aspects. Lastly, we consider how we can treat these patients living autistic lives with the symptoms. During physiognomy-accompanying auditory hallucinations, the realistic face moves its mouth and talks to the patient expressively. In early onset cases, the faces of various real people appear talking about ordinary things while in late onset cases, the faces can be imaginary but are mainly real people talking about ordinary or delusional things. We suppose that these characteristics of the symptoms unify the schizophrenic world overwhelmed by "a force of non-sense" to "the sense field". "The force of non-sense" is a substantial power but cannot be reduced to the real meaning. And we suppose that not visual reality but the intensity of auditory hallucinations of the face brings about the overwhelming intensity of symptoms and the substantiality of this intensity depends on the states of excessive fullness of "the force of non-sense". With these symptoms patients see the narration of auditory hallucinations through the facial image and the content of auditory hallucinations is compressed into the movement of visual hallucinations of the speaker's face. The form of symptoms is realistic but the speaker's face and voice are beyond ordinary time and space. The symptoms are essentially different from ordinary perception. The visual

  7. Which future for the nuclear counter-proliferation?; Quel avenir pour la contre-proliferation nucleaire?

    Duval, M

    2004-10-01

    After a recall of the permanent data about proliferation and of the safeguards implemented by the international community, the author demonstrates that proliferation has moved towards Asia where a real 'black market' has been created. Then he analyzes the consequences of this change on the future of nuclear deterrent. Finally, he expresses his nostalgia in front of this drift and worries about the future uselessness of the means devoted to this 'pacifying' strategy. (J.S.)

  8. Phosphorylation at tyrosine 114 of Proliferating Cell Nuclear Antigen (PCNA) is required for adipogenesis in response to high fat diet

    Lo, Yuan-Hung; Ho, Po-Chun; Chen, Min-Shan; Hugo, Eric; Ben-Jonathan, Nira [Department of Cancer Biology, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521 (United States); Department of Environmental Health, University of Cincinnati College of Medicine, 3223 Eden Avenue, Kettering Laboratory, Cincinnati, OH 45267-0056 (United States); Wang, Shao-Chun, E-mail: shao-chun.wang@uc.edu [Department of Cancer Biology, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521 (United States); Department of Environmental Health, University of Cincinnati College of Medicine, 3223 Eden Avenue, Kettering Laboratory, Cincinnati, OH 45267-0056 (United States)

    2013-01-04

    Highlights: Black-Right-Pointing-Pointer Proliferating Cell Nuclear Antigen (PCNA) is phosphorylated at Y114. Black-Right-Pointing-Pointer Phospho-Y114 of PCNA is not required for cell proliferation for normal growth. Black-Right-Pointing-Pointer MCE during adipogenesis is abolished in the lack of the phosphorylation. Black-Right-Pointing-Pointer Homozygous Y114F mice are resistant to high fat diet induced obesity. Black-Right-Pointing-Pointer Our results shed light on the interface between proliferation and differentiation. -- Abstract: Clonal proliferation is an obligatory component of adipogenesis. Although several cell cycle regulators are known to participate in the transition between pre-adipocyte proliferation and terminal adipocyte differentiation, how the core DNA synthesis machinery is coordinately regulated in adipogenesis remains elusive. PCNA (Proliferating Cell Nuclear Antigen) is an indispensable component for DNA synthesis during proliferation. Here we show that PCNA is subject to phosphorylation at the highly conserved tyrosine residue 114 (Y114). Replacing the Y114 residue with phenylalanine (Y114F), which is structurally similar to tyrosine but cannot be phosphorylated, does not affect normal animal development. However, when challenged with high fat diet, mice carrying homozygous Y114F alleles (PCNA{sup F/F}) are resistant to adipose tissue enlargement in comparison to wild-type (WT) mice. Mouse embryonic fibroblasts (MEFs) harboring WT or Y114F mutant PCNA proliferate at similar rates. However, when subjected to adipogenesis induction in culture, PCNA{sup F/F} MEFs are not able to re-enter the cell cycle and fail to form mature adipocytes, while WT MEFs undergo mitotic clonal expansion in response to the adipogenic stimulation, accompanied by enhanced Y114 phosphorylation of PCNA, and differentiate to mature adipocytes. Consistent with the function of Y114 phosphorylation in clonal proliferation in adipogenesis, fat tissues isolated from WT

  9. Nerves Regulate Cardiomyocyte Proliferation and Heart Regeneration.

    Mahmoud, Ahmed I; O'Meara, Caitlin C; Gemberling, Matthew; Zhao, Long; Bryant, Donald M; Zheng, Ruimao; Gannon, Joseph B; Cai, Lei; Choi, Wen-Yee; Egnaczyk, Gregory F; Burns, Caroline E; Burns, C Geoffrey; MacRae, Calum A; Poss, Kenneth D; Lee, Richard T

    2015-08-24

    Some organisms, such as adult zebrafish and newborn mice, have the capacity to regenerate heart tissue following injury. Unraveling the mechanisms of heart regeneration is fundamental to understanding why regeneration fails in adult humans. Numerous studies have revealed that nerves are crucial for organ regeneration, thus we aimed to determine whether nerves guide heart regeneration. Here, we show using transgenic zebrafish that inhibition of cardiac innervation leads to reduction of myocyte proliferation following injury. Specifically, pharmacological inhibition of cholinergic nerve function reduces cardiomyocyte proliferation in the injured hearts of both zebrafish and neonatal mice. Direct mechanical denervation impairs heart regeneration in neonatal mice, which was rescued by the administration of neuregulin 1 (NRG1) and nerve growth factor (NGF) recombinant proteins. Transcriptional analysis of mechanically denervated hearts revealed a blunted inflammatory and immune response following injury. These findings demonstrate that nerve function is required for both zebrafish and mouse heart regeneration.

  10. Security Guarantees and Nuclear Non-Proliferation

    Bruno Tertrais

    2011-07-01

    The purpose of this paper is to discuss the value of 'security guarantees', that is, positive security assurances that include a formal or informal defense commitment, in preventing nuclear proliferation. It demonstrates that such guarantees have proven to be a very effective instrument in preventing States from going nuclear. It would thus seem logical to reinforce or extend them. However, this path is fraught with obstacles and dilemmas

  11. The Antarctic - Zangger of proliferation control

    Meadley, T. [Uranium Inst., London (United Kingdom)

    1995-08-01

    The Treaty for the Non-Proliferation of Nuclear Weapons is the main multi-lateral agreement that aims to limit the spread of nuclear weapons. But it is not the only one. In this, the first in an occasional series of reference guides, Core Issues focuses on the various antiproliferation agreements, what they mean and who is party to them. The author is Tim Meadley, Head of External Communications at the UI, with additional research by Charu Jasani. (UK).

  12. Menin represses tumorigenesis via repressing cell proliferation

    Wu, Ting; Hua, Xianxin

    2011-01-01

    Multiple endocrine neoplasia type 1 (MEN1) results from mutations in the tumor suppressor gene, MEN1, which encodes nuclear protein menin. Menin is important for suppressing tumorigenesis in various endocrine and certain non-endocrine tissues. Although menin suppresses MEN1 through a variety of mechanisms including regulating apoptosis and DNA repair, the role of menin in regulating cell proliferation is one of the best-studied functions. Here, we focus on reviewing various mechanisms underly...

  13. IAEA safeguards and non-proliferation

    Harry, R.J.S.

    1995-02-01

    An overview is given of efforts to contain the nuclear weapons proliferation during half a century of man-controlled nuclear fission. An initial policy of denial did not work, a following period of cooperation needed a gradual strengthening of international assurances on the peaceful character of the flourishing use of nuclear techniques for power generation and of other applications. The focus of the nuclear weapon proliferation concern changed from the highly developed states to developing states. The Non-Proliferation Treaty laid the basis for a unique system of voluntarily accepted international inspections to verify the peaceful use of nuclear energy. The IAEA got the task to implement this `Full Scope Safeguards` on all nuclear material and all nuclear activities in the non-nuclear weapon states. Thanks to the structure of the IAEA, in which both proponent and states with a critical attitude take part in the decision making process on the IAEA execution of its tasks, a balanced, and widely acceptable system emerged. International developments necessitated additional improvements of the non-proliferation system. The increase of strength of sub-national groups triggered international cooperation on physical protection, about a quarter of a century ago. More recently, it appeared that NPT states with assumed nuclear weapon ambitions operated in the margins between the interpretation of IAEA safeguards and the spirit and purpose of NPT. Improvements of the IAEA safeguards and a stronger cooperation between states, including the constraints which exporting states have imposed on nuclear supplies, strengthen the safeguards system. The important reductions in the two largest nuclear weapon arsenals lead, together with the delay in the fast breeder implementation, to large stockpiles of nuclear weapon usable materials. Also in this areas new internationally credible assurances have to be obtained, that these materials will never return to nuclear weapon applications.

  14. The new politics of missile proliferation

    Karp, A. [Old Dominion Univ., Norfolk, VA (United States)

    1996-10-01

    The author addresses the most consequential proliferation battle of the 1990s which occurred in Washington over the interpretation of the long-term threat to the United States from ballistic missiles. In the early 1970s, the stabilization of the US-Soviet strategic relationship led to new disputes over the other side`s future intentions, seen most graphically in Western debates over the implications of the Soviet SS-18 and SS-20 missile programs. Today, in much the same way, proliferation politics has matured to the point that surprises are few and the most challenging problem is anticipating the more distant future. Washington`s ballistic missile proliferation battle was sparked by National Intelligence Estimate (NIE) 95-19, entitled {open_quotes}Emerging Threats to North America During the Next 15 Years,{close_quotes} released by the National Intelligence Council in November 1995. This document updated the evidence of regional missile programs reviewed in a similar report issued in 1993, and recapitulated the previous finding that {open_quotes}No country, other than the major declared nuclear powers, will develop or otherwise acquire a ballistic missile in the next 15 years that could threatened the contiguous 48 states or Canada.{close_quotes} The new report confirmed what several other studies of missile proliferation had already established: that besides the five nuclear-weapon states (the United States, Russia, China, France and Britain), only India, Israel and Japan are in a position to develop an ICBM during the foreseeable future, and while all have relevant capabilities, none are undertaking the steps necessary to develop an actual ICBM.

  15. Director`s series on proliferation

    Bailey, K.C.; Price, M.E. [eds.

    1994-10-17

    This series is an occasional publication of essays on the topics of nuclear, chemical, biological, and missile proliferation. Essays contained in this document include: Key issues on NPT renewal and extension, Africa and nuclear nonproliferation, Kenya`s views on the NPT, Prospects for establishing a zone free of weapons of mass destruction in the middle east, effects of a special nuclear weapon materials cut-off convention, and The UK view of NPT renewal.

  16. Proliferation Persuasion. Coercive Bargaining with Nuclear Technology

    Volpe, Tristan A. [George Washington Univ., Washington, DC (United States)

    2015-08-31

    Why do states wait for prolonged periods of time with the technical capacity to produce nuclear weapons? Only a handful of countries have ever acquired the sensitive nuclear fuel cycle technology needed to produce fissile material for nuclear weapons. Yet the enduring trend over the last five decades is for these states to delay or forgo exercising the nuclear weapons option provided by uranium enrichment or plutonium reprocessing capabilities. I show that states pause at this threshold stage because they use nuclear technology to bargain for concessions from both allies and adversaries. But when does nuclear latency offer bargaining benefits? My central argument is that challengers must surmount a dilemma to make coercive diplomacy work: the more they threaten to proliferate, the harder it becomes to reassure others that compliance will be rewarded with nuclear restraint. I identify a range of mechanisms able to solve this credibility problem, from arms control over breakout capacity to third party mediation and confidence building measures. Since each step towards the bomb raises the costs of implementing these policies, a state hits a sweet spot when it first acquires enrichment and/or reprocessing (ENR) technology. Subsequent increases in proliferation capability generate diminishing returns at the bargaining table for two reasons: the state must go to greater lengths to make a credible nonproliferation promise, and nuclear programs exhibit considerable path dependency as they mature over time. Contrary to the conventional wisdom about power in world politics, less nuclear latency thereby yields more coercive threat advantages. I marshal new primary source evidence from archives and interviews to identify episodes in the historical record when states made clear decisions to use ENR technology as a bargaining chip, and employ this theory of proliferation persuasion to explain how Japan, North Korea, and Iran succeeded and failed to barter concessions from the

  17. Plutonium Proliferation: The Achilles Heel of Disarmament

    Leventhal, Paul (President, Nuclear Control Institute, Washington D.C.)

    2001-02-07

    Plutonium is a byproduct of nuclear fission, and it is produced at the rate of about 70 metric tons a year in the world's nuclear power reactors. Concerns about civilian plutonium ran high in the 1970s and prompted enactment of the Nuclear Non-Proliferation Act of 1978 to give the United States a veto over separating plutonium from U.S.-supplied uranium fuel. Over the years, however, so-called reactor-grade plutonium has become the orphan issue of nuclear non-proliferation, largely as a consequence of pressures from plutonium-separating countries. The demise of the fast breeder reactor and the reluctance of utilities to introduce plutonium fuel in light-water reactors have resulted in large surpluses of civilian, weapons-usable plutonium, which now approach in size the 250 tons of military plutonium in the world. Yet reprocessing of spent fuel for recovery and use of plutonium proceeds apace outside the United States and threatens to overwhelm safeguards and security measures for keeping this material out of the hands of nations and terrorists for weapons. A number of historical and current developments are reviewed to demonstrate that plutonium commerce is undercutting efforts both to stop the spread of nuclear weapons and to work toward eliminating existing nuclear arsenals. These developments include the breakdown of U.S. anti-plutonium policy, the production of nuclear weapons by India with Atoms-for-Peace plutonium, the U.S.-Russian plan to introduce excess military plutonium as fuel in civilian power reactors, the failure to include civilian plutonium and bomb-grade uranium in the proposed Fissile Material Cutoff Treaty, and the perception of emerging proliferation threats as the rationale for development of a ballistic missile defense system. Finally, immobilization of separated plutonium in high-level waste is explored as a proliferation-resistant and disarmament-friendly solution for eliminating excess stocks of civilian and military plutonium.

  18. NSAIDs and Cell Proliferation in Colorectal Cancer

    Raj Ettarh

    2010-06-01

    Full Text Available Colon cancer is common worldwide and accounts for significant morbidity and mortality in patients. Fortunately, epidemiological studies have demonstrated that continuous therapy with NSAIDs offers real promise of chemoprevention and adjunct therapy for colon cancer patients. Tumour growth is the result of complex regulation that determines the balance between cell proliferation and cell death. How NSAIDs affect this balance is important for understanding and improving treatment strategies and drug effectiveness. NSAIDs inhibit proliferation and impair the growth of colon cancer cell lines when tested in culture in vitro and many NSAIDs also prevent tumorigenesis and reduce tumour growth in animal models and in patients, but the relationship to inhibition of tumour cell proliferation is less convincing, principally due to gaps in the available data. High concentrations of NSAIDs are required in vitro to achieve cancer cell inhibition and growth retardation at varying time-points following treatment. However, the results from studies with colon cancer cell xenografts are promising and, together with better comparative data on anti-proliferative NSAID concentrations and doses (for in vitro and in vivo administration, could provide more information to improve our understanding of the relationships between these agents, dose and dosing regimen, and cellular environment.

  19. Dynamic proliferation assessment in flow cytometry.

    Diermeier-Daucher, Simone; Brockhoff, Gero

    2010-09-01

    Dynamic proliferation assessment via flow cytometry is legitimately supposed to be the most powerful tool for recording cell cycle kinetics in-vitro. The preeminent feature is a single cell-based multi-informative analysis by temporal high-resolution. Flow cytometric approaches are based on labeling of proliferating cells via thymidine substitution by a base analog (e.g., 5-bromo-2'-deoxyuridine, BrdU) that is added to cell cultures either for a short period of time (pulse labeling) or continuously until cell harvesting. This unit describes the alternative use of the thymidine analog 5-ethynyl-2'-deoxyuridine (EdU) in place of BrdU for three different applications: (1) dynamic proliferation assessment by EdU pulse cell labeling; (2) the same approach as (1) but in combination with live/dead cell discrimination; and (3) dynamic cell cycle analysis based on continuous cell labeling with EdU and Hoechst fluorochrome quenching. In contrast to the detection of BrdU incorporation, EdU-positive cells can be identified by taking advantage of click chemistry, which facilitates a simplified and fast cell preparation. Further analysis options but also limitations of the utilization of EdU are discussed.

  20. Persistent at-level thermal hyperalgesia and tactile allodynia accompany chronic neuronal and astrocyte activation in superficial dorsal horn following mouse cervical contusion spinal cord injury.

    Watson, Jaime L; Hala, Tamara J; Putatunda, Rajarshi; Sannie, Daniel; Lepore, Angelo C

    2014-01-01

    In humans, sensory abnormalities, including neuropathic pain, often result from traumatic spinal cord injury (SCI). SCI can induce cellular changes in the CNS, termed central sensitization, that alter excitability of spinal cord neurons, including those in the dorsal horn involved in pain transmission. Persistently elevated levels of neuronal activity, glial activation, and glutamatergic transmission are thought to contribute to the hyperexcitability of these dorsal horn neurons, which can lead to maladaptive circuitry, aberrant pain processing and, ultimately, chronic neuropathic pain. Here we present a mouse model of SCI-induced neuropathic pain that exhibits a persistent pain phenotype accompanied by chronic neuronal hyperexcitability and glial activation in the spinal cord dorsal horn. We generated a unilateral cervical contusion injury at the C5 or C6 level of the adult mouse spinal cord. Following injury, an increase in the number of neurons expressing ΔFosB (a marker of chronic neuronal activation), persistent astrocyte activation and proliferation (as measured by GFAP and Ki67 expression), and a decrease in the expression of the astrocyte glutamate transporter GLT1 are observed in the ipsilateral superficial dorsal horn of cervical spinal cord. These changes have previously been associated with neuronal hyperexcitability and may contribute to altered pain transmission and chronic neuropathic pain. In our model, they are accompanied by robust at-level hyperaglesia in the ipsilateral forepaw and allodynia in both forepaws that are evident within two weeks following injury and persist for at least six weeks. Furthermore, the pain phenotype occurs in the absence of alterations in forelimb grip strength, suggesting that it represents sensory and not motor abnormalities. Given the importance of transgenic mouse technology, this clinically-relevant model provides a resource that can be used to study the molecular mechanisms contributing to neuropathic pain

  1. Personality Pathology of Adults with Autism Spectrum Disorder without Accompanying Intellectual Impairment in Comparison to Adults with Personality Disorders

    Strunz, Sandra; Westphal, Linda; Ritter, Kathrin; Heuser, Isabella; Dziobek, Isabel; Roepke, Stefan

    2015-01-01

    Differentiating autism spectrum disorders (ASDs) without accompanying intellectual impairment from personality disorders is often challenging. Identifying personality traits and personality pathology specific to ASD might facilitate diagnostic procedure. We recruited a sample of 59 adults with ASD without accompanying intellectual impairment, 62…

  2. 30 CFR 250.245 - What hydrogen sulfide (H2S) information must accompany the DPP or DOCD?

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What hydrogen sulfide (H2S) information must accompany the DPP or DOCD? 250.245 Section 250.245 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT... Documents (docd) § 250.245 What hydrogen sulfide (H2S) information must accompany the DPP or DOCD?...

  3. 78 FR 69415 - Proposed Changes to FCC Form 499-A, FCC Form 499-Q, and Accompanying Instructions.

    2013-11-19

    ... COMMISSION Proposed Changes to FCC Form 499-A, FCC Form 499-Q, and Accompanying Instructions. AGENCY: Federal... to (1) the annual Telecommunications Reporting Worksheet, FCC Form 499-A (Form 499-A) and... quarterly Telecommunications Reporting Worksheet, FCC Form 499-Q (Form 499-Q) and accompanying...

  4. Music Supports the Processing of Song Lyrics and Changes their Contents: : Effects of Melody, Silences and Accompaniment

    Schotanus, Yke

    2016-01-01

    A growing body of evidence indicates that singing might affect the perception of language both in a supportive and in a detrimental way. Accompaniment might be a factor of interest, because loud rests (on-beat silences) and out-of-key notes may confuse listeners, while accompaniment might elucidate

  5. Accompanying conditions in patients with chronic spontaneous urticaria and urticarial vasculitis: Results of a retrospective study

    Sevgi Akarsu

    2015-03-01

    Full Text Available Background and Design: Chronic spontaneous urticaria (CSU, the most common form of chronic urticaria, is characterized by spontaneous wheals and/or angioedema lasting longer than six weeks. Urticarial vasculitis (UV is a small vessel vasculitis; but is also included in the various classification systems of chronic urticaria by some authors. The aim of our study was to evaluate the frequency of accompanying conditions, and to compare the demographic, clinical and laboratory features of patients with CSU and UV. Materials and Methods: In this study, the files of CSU (n=146 and UV (n=43 patients who had been hospitalized between January 2010-December 2013 were retrospectively reviewed in terms of demographic data, disease-specific history, accompanying diseases, medications and laboratory findings. Results: When comparing between the two groups for statistical differences, it was found that the frequencies of personal atopy and angioedema were significantly higher in patients with CSU; however, the patients with UV had significantly higher rates for female gender and the presence of systemic symptoms compared to those with CSU. It was determined that the mean values for erythrocyte sedimentation rate and C-reactive protein, as well as the rates of antinuclear antibody positivity and hypocomplementemia were significantly higher in the UV group, compared with those in the CSU group. Accompanying factors were determined as infections, medications, autoimmune diseases and malignities in order of frequency in both CSU and UV groups, but only the frequency of autoimmune diseases was significantly higher in patients with UV group. Conclusion: Although various authors have reported that a large number (up to 40-60% of patients with UV may present only with wheals (clinically indistinguishable from CSU; we assumed that it would be more appropriate to be considered UV as a priority in patients especially who had systemic symptom, autoimmune disease

  6. [About the last transit. Accompaniment of the soul and the personality].

    Pilar Fenés, María

    2013-03-01

    "Death and its approach represent a field of study for nurses": thus ended his article Montserrat Salvador Borrell in Revista ROL de Enfermería in November 2010. Address it also from the point of view of the soul brings perspective and gives horizon in the sense of one greater understanding. Death, contemplated and lived exclusively from the material side, flees from as a not only traumatic event for which the experience but also unsurpassed for loved ones. Paradoxically, it's a more natural and frequent phenomenon. Why humans so hard that naturalness? Because we have not cultivated, sometimes not even recognized, other spiritual nature which forms us and who has the key to give sense to the decisive events. For many spiritual traditions, death is birth to another world that, from here, we call beyond. In accompaniment of soul seminars, based on the teachings transmitted by Elisabeth Kübler Ros and Marie Lise Labonte, patterns are learned to accompany the personality and soul--which does not always go according to the time of split--and to help the soul to rediscover his way toward the light, toward the origin. The soul knows it well, but the emotional ties forged during his earthly journey can retain it and hinder the process, which becomes slow and painful. The accompaniment of the soul is a "service" human, social and spiritual. Guides in a forgotten and often feared territory is a relief. You have guides to prepare the great journey allows, especially, make peace with himself with others I with the world. The Egyptians used the symbol of the solar boat, which waits for the deceased to cross the great waters. Nurses are, unknowingly, barqueras of small and large transits of existence.

  7. Learning to sing with the accompaniment of the gusle in Serbia in the XXI century

    Lajić-Mihajlović Danka

    2012-01-01

    Full Text Available In this paper, learning to sing with the accompaniment of the gusle is reconsidered within the concept of the preservation of traditional folk music as an intangible cultural heritage, that is, as a specific form of music education. Having dealt with a traditional way of providing continuity in the practice of guslars` (i. e. gusle players - which is learning by observing and imitating more experienced family members or guslars from nearby surrounding - some crucial moments in the history of singing with the accompaniment of the gusle, which also influenced the process of transmitting this skill, are demonstrated. In recent times, singing with the accompaniment of the gusle has been mastered not only within family circles but also in associations of guslars, at private schools of music, and lately there has also been an opportunity to learn this skill at some state schools of music. Accordingly, interviews with the members of an Association of guslars association that is particularly distinguished by the fostering young guslars, and interviews with gusle teachers and pupils who attend schools of music were used as primary sources for this paper, together with the specific experience of the author as a president of the jury in a young guslars’ competition. Since the poetic content of the songs is primarily learnt from printed collections or audio recordings, future guslars in fact master the musical skills of playing and singing along the instrument, that is, the skill of the vocal interpretation of a chosen written poetic text. Concerning these, some programmes and methods are discussed, as well as their effects on young guslars’ competence, principally from the point of style and aesthetics. Attention is particularly drawn to flaws in the teaching concept of future gusle players at state schools of music. In conclusion, the necessity of applying ethnomusicological findings to activities concerning the preservation of an intangible cultural

  8. Targeting cyclin B1 inhibits proliferation and sensitizes breast cancer cells to taxol

    Strebhardt Klaus

    2008-12-01

    Full Text Available Abstract Background Cyclin B1, the regulatory subunit of cyclin-dependent kinase 1 (Cdk1, is essential for the transition from G2 phase to mitosis. Cyclin B1 is very often found to be overexpressed in primary breast and cervical cancer cells as well as in cancer cell lines. Its expression is correlated with the malignancy of gynecological cancers. Methods In order to explore cyclin B1 as a potential target for gynecological cancer therapy, we studied the effect of small interfering RNA (siRNA on different gynecological cancer cell lines by monitoring their proliferation rate, cell cycle profile, protein expression and activity, apoptosis induction and colony formation. Tumor formation in vivo was examined using mouse xenograft models. Results Downregulation of cyclin B1 inhibited proliferation of several breast and cervical cancer cell lines including MCF-7, BT-474, SK-BR-3, MDA-MB-231 and HeLa. After combining cyclin B1 siRNA with taxol, we observed an increased apoptotic rate accompanied by an enhanced antiproliferative effect in breast cancer cells. Furthermore, control HeLa cells were progressively growing, whereas the tumor growth of HeLa cells pre-treated with cyclin B1 siRNA was strongly inhibited in nude mice, indicating that cyclin B1 is indispensable for tumor growth in vivo. Conclusion Our data support the notion of cyclin B1 being essential for survival and proliferation of gynecological cancer cells. Concordantly, knockdown of cyclin B1 inhibits proliferation in vitro as well as in vivo. Moreover, targeting cyclin B1 sensitizes breast cancer cells to taxol, suggesting that specific cyclin B1 targeting is an attractive strategy for the combination with conventionally used agents in gynecological cancer therapy.

  9. ZEB2 mediates multiple pathways regulating cell proliferation, migration, invasion, and apoptosis in glioma.

    Songtao Qi

    Full Text Available BACKGROUND: The aim of the present study was to analyze the expression of Zinc finger E-box Binding homeobox 2 (ZEB2 in glioma and to explore the molecular mechanisms of ZEB2 that regulate cell proliferation, migration, invasion, and apoptosis. METHODOLOGY/PRINCIPAL FINDINGS: Expression of ZEB2 in 90 clinicopathologically characterized glioma patients was analyzed by immunohistochemistry. Furthermore, siRNA targeting ZEB2 was transfected into U251 and U87 glioma cell lines in vitro and proliferation, migration, invasion, and apoptosis were examined separately by MTT assay, Transwell chamber assay, flow cytometry, and western blot. RESULTS: The expression level of ZEB2 protein was significantly increased in glioma tissues compared to normal brain tissues (P<0.001. In addition, high levels of ZEB2 protein were positively correlated with pathology grade classification (P = 0.024 of glioma patients. Knockdown of ZEB2 by siRNA suppressed cell proliferation, migration and invasion, as well as induced cell apoptosis in glioma cells. Furthermore, ZEB2 downregulation was accompanied by decreased expression of CDK4/6, Cyclin D1, Cyclin E, E2F1, and c-myc, while p15 and p21 were upregulated. Lowered expression of ZEB2 enhanced E-cadherin levels but also inhibited β-Catenin, Vimentin, N-cadherin, and Snail expression. Several apoptosis-related regulators such as Caspase-3, Caspase-6, Caspase-9, and Cleaved-PARP were activated while PARP was inhibited after ZEB2 siRNA treatment. CONCLUSION: Overexpression of ZEB2 is an unfavorable factor that may facilitate glioma progression. Knockdown ZEB2 expression by siRNA suppressed cell proliferation, migration, invasion and promoted cell apoptosis in glioma cells.

  10. Karyopherin Alpha 1 Regulates Satellite Cell Proliferation and Survival by Modulating Nuclear Import.

    Choo, Hyo-Jung; Cutler, Alicia; Pavlath, Grace K

    2016-07-19

    Satellite cells are stem cells with an essential role in skeletal muscle repair. Precise regulation of gene expression is critical for proper satellite cell quiescence, proliferation, differentiation and self-renewal. Nuclear proteins required for gene expression are dependent on the nucleocytoplasmic transport machinery to access to nucleus, however little is known about regulation of nuclear transport in satellite cells. The best characterized nuclear import pathway is classical nuclear import which depends on a classical nuclear localization signal (cNLS) in a cargo protein and the heterodimeric import receptors, karyopherin alpha (KPNA) and beta (KPNB). Multiple KPNA1 paralogs exist and can differ in importing specific cNLS proteins required for cell differentiation and function. We show that transcripts for six Kpna paralogs underwent distinct changes in mouse satellite cells during muscle regeneration accompanied by changes in cNLS proteins in nuclei. Depletion of KPNA1, the most dramatically altered KPNA, caused satellite cells in uninjured muscle to prematurely activate, proliferate and undergo apoptosis leading to satellite cell exhaustion with age. Increased proliferation of satellite cells led to enhanced muscle regeneration at early stages of regeneration. In addition, we observed impaired nuclear localization of two key KPNA1 cargo proteins: p27, a cyclin-dependent kinase inhibitor associated with cell cycle control and lymphoid enhancer factor 1, a critical cotranscription factor for β-catenin. These results indicate that regulated nuclear import of proteins by KPNA1 is critical for satellite cell proliferation and survival and establish classical nuclear import as a novel regulatory mechanism for controlling satellite cell fate. Stem Cells 2016.

  11. A typical case of hydrallantois accompanied by fetal monstrosity in a local ewe of Kashmir

    Hiranya Kumar Bhattacharyya

    2012-09-01

    Full Text Available A full termed local ewe with the history of continuous straining with labored breathing for last 24 hours was presented. The animal was disinclined to move with tense and round abdomen which developed rapidly during last two weeks. Caesarean section revealed hydrallantois accompanied by multiple fetal congenital abnormalities. The ewe was under observation for four weeks. Metritis developed 12 days post-operation and was treated successfully. The ewe was found active on 25 days post-surgery with gain of extra 3 kg bodyweight.

  12. Solutions manual to accompany Classical geometry Euclidean, transformational, inversive, and projective

    Leonard, I E; Liu, A C F; Tokarsky, G W

    2014-01-01

    Solutions Manual to accompany Classical Geometry: Euclidean, Transformational, Inversive, and Projective Written by well-known mathematical problem solvers, Classical Geometry: Euclidean, Transformational, Inversive, and Projective features up-to-date and applicable coverage of the wide spectrum of geometry and aids readers in learning the art of logical reasoning, modeling, and proof. With its reader-friendly approach, this undergraduate text features self-contained topical coverage and provides a large selection of solved exercises to aid in reader comprehension. Material in this text can be tailored for a one-, two-, or three-semester sequence.

  13. Solutions manual to accompany Statistics and probability with applications for engineers and scientists

    Gupta, Bhisham C

    2013-01-01

    A solutions manual to accompany Statistics and Probability with Applications for Engineers and ScientistsUnique among books of this kind, Statistics and Probability with Applications for Engineers and Scientists covers descriptive statistics first, then goes on to discuss the fundamentals of probability theory. Along with case studies, examples, and real-world data sets, the book incorporates clear instructions on how to use the statistical packages Minitab® and Microsoft® Office Excel® to analyze various data sets. The book also features: Detailed discussions on sampling distributions, stati

  14. Production of e+ e- pairs accompanied by nuclear dissociation in ultraperipheral heavy-ion collisions

    Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Bekele, S.; Belaga, V. V.; Bellwied, R.; Berger, J.; Bezverkhny, B. I.; Bharadwaj, S.; Bhatia, V. S.; Bichsel, H.; Billmeier, A.; Bland, L. C.; Blyth, C. O.; Bonner, B. E.; Botje, M.; Boucham, A.; Brandin, A.; Bravar, A.; Bystersky, M.; Cadman, R. V.; Cai, X. Z.; Caines, H.; Sánchez, M. Calderón; Carroll, J.; Castillo, J.; Cebra, D.; Chajecki, Z.; Chaloupka, P.; Chattopdhyay, S.; Chen, H. F.; Chen, Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Christie, W.; Coffin, J. P.; Cormier, T. M.; Cramer, J. G.; Crawford, H. J.; Das, D.; Das, S.; Moura, M. M.; Derevschikov, A. A.; Didenko, L.; Dietel, T.; Dong, W. J.; Dong, X.; Draper, J. E.; Du, F.; Dubey, A. K.; Dunin, V. B.; Dunlop, J. C.; Mazumdar, M. R.; Eckardt, V.; Edwards, W. R.; Efimov, L. G.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Fachini, P.; Faivre, J.; Fatemi, R.; Fedorisin, J.; Filimonov, K.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Foley, K. J.; Fomenko, K.; Fu, J.; Gagliardi, C. A.; Gans, J.; Ganti, M. S.; Gaudichet, L.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gonzalez, J. E.; Grachov, O.; Grebenyuk, O.; Grosnick, D.; Guertin, S. M.; Guo, Y.; Gupta, A.; Gutierrez, T. D.; Hallman, T. J.; Hamed, A.; Hardtke, D.; Harris, J. W.; Heinz, M.; Henry, T. W.; Hepplemann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffmann, G. W.; Huang, H. Z.; Huang, S. L.; Hughes, E. W.; Humanic, T. J.; Igo, G.; Ishihara, A.; Jacobs, P.; Jacobs, W. W.; Janik, M.; Jiang, H.; Jones, P. G.; Judd, E. G.; Kabana, S.; Kang, K.; Kaplan, M.; Keane, D.; Khodyrev, V. Yu.; Kiryluk, J.; Kisiel, A.; Kislov, E. M.; Klay, J.; Klein, S. R.; Klyachko, A.; Koetke, D. D.; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kramer, M.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Kuhn, C.; Kulikov, A. I.; Kumar, A.; Kunz, C. L.; Kutuev, R. Kh.; Kuznetsov, A. A.; Lamont, M. A.; Landgraf, J. M.; Lange, S.; Laue, F.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lehocka, S.; Levine, M. J.; Li, C.; Li, Q.; Li, Y.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, L.; Liu, Q. J.; Liu, Z.; Ljubicic, T.; Llope, W. J.; Long, H.; Longacre, R. S.; Lopez-Noriega, M.; Love, W. A.; Lu, Y.; Ludlam, T.; Lynn, D.; Ma, G. L.; Ma, J. G.; Ma, Y. G.; Magestro, D.; Mahajan, S.; Mahapatra, D. P.; Majka, R.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Martin, L.; Marx, J. N.; Matis, H. S.; Matulenko, Yu. A.; McClain, C. J.; McShane, T. S.; Meissner, F.; Melnick, Yu.; Meschanin, A.; Miller, M. L.; Milosevich, Z.; Minaev, N. G.; Mironov, C.; Mischke, A.; Mishra, D.; Mitchell, J.; Mohanty, B.; Molnar, L.; Moore, C. F.; Mora-Corral, M. J.; Morozov, D. A.; Morozov, V.; Munhoz, M. G.; Nandi, B. K.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Nikitin, V. A.; Nogach, L. V.; Norman, B.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldenburg, M.; Olson, D.; Pal, S. K.; Panebratsev, Y.; Panitkin, S. Y.; Pavlinov, A. I.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Petrov, V. A.; Phatak, S. C.; Picha, R.; Planinic, M.; Pluta, J.; Porile, N.; Porter, J.; Poskanzer, A. M.; Potekhin, M.; Potrebenikova, E.; Potukuchi, B. V.; Prindle, D.; Pruneau, C.; Putschke, J.; Rai, G.; Rakness, G.; Raniwala, R.; Raniwala, S.; Ravel, O.; Ray, R. L.; Razin, S. V.; Reichhold, D.; Reid, J. G.; Renault, G.; Retiere, F.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Sakrejda, I.; Salur, S.; Sandweiss, J.; Savin, I.; Sazhin, P. S.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Schroeder, L. S.; Schweda, K.; Seger, J.; Seyboth, P.; Shahaliev, E.; Shao, M.; Shao, W.; Sharma, M.; Shen, W. Q.; Shestermanov, K. E.; Shimanskiy, S. S.; Simon, F.; Singaraju, R. N.; Skoro, G.; Smirnov, N.; Snellings, R.; Sood, G.; Sorensen, P.; Sowinski, J.; Speltz, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D.; Stock, R.; Stolpovsky, A.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A.; Sugarbaker, E.; Suire, C.; Sumbera, M.; Surrow, B.; Symons, T. J.; Toledo, A. Szanto; Szarwas, P.; Tai, A.; Takahashi, J.; Tang, A. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Timoshenko, S.; Tokarev, M.; Trainor, T. A.; Trentalange, S.; Tribble, R. E.; Tsai, O.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Urkinbaev, A.; Buren, G. Van; Leeuwen, M. Van; Molen, A. M.; Varma, R.; Vasilevski, I. M.; Vasiliev, A. N.; Vernet, R.; Vigdor, S. E.; Viyogi, V. P.; Vokal, S.; Voloshin, S. A.; Vznuzdaev, M.; Waggoner, B.; Wang, F.; Wang, G.; Wang, G.; Wang, X. L.; Wang, Y.; Wang, Y.; Wang, Z. M.; Ward, H.; Watson, J. W.; Webb, J. C.; Wells, R.; Westfall, G. D.; Wetzler, A.; Whitten, C.; Wieman, H.; Wissink, S. W.; Witt, R.; Wood, J.; Wu, J.; Xu, N.; Xu, Z.; Xu, Z. Z.; Yamamoto, E.; Yepes, P.; Yurevich, V. I.; Zanevsky, Y. V.; Zhang, H.; Zhang, W. M.; Zhang, Z. P.; Zolnierczuk, P. A.; Zoulkarneev, R.; Zoulkarneeva, Y.; Zubarev, A. N.

    2004-09-01

    We present data on e+ e- pair production accompanied by nuclear breakup in ultraperipheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order diagrams for pair production should be enhanced. We compare the data with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED). The data distributions agree with both calculations, except that the pair transverse momentum spectrum disagrees with the equivalent photon approach. We set limits on higher-order contributions to the cross section.

  15. Production of jets accompanied by W and Z bosons at LHC startup

    Dobur, Didar

    2009-01-01

    We report on potential for measurement of W and Z boson production accompanied by jets. Of particular interest are jet multiplicity and $P_{\\rm T}$ distributions. The 10 to 100 $pb^{-1}$ datasets expected in the startup year of operation of LHC are likely to already provide information beyond the reach of the Tevatron collider both in jet multiplicity and $P_{\\rm T}$ range. We are especially interested in understanding the ratios of W+jets to Z+jets distributions by comparing them to next-to-leading order Monte Carlo generators, as these processes present a formidable background for searches of new physics phenomena.

  16. The Rate for $B\\bbar$ Production Accompanied by a Single Pion

    Randall, Lisa; Randall, Lisa; Sather, Eric

    1993-01-01

    We study the rate for the production of ${B B^\\pm \\pi^\\mp}$, where the sign of the charged pion tags the flavor content of the neutral $B$ meson. We estimate this branching ratio, employing the heavy meson chiral effective theory. We find that at center of mass energy of approximately 12 GeV, a $B$ meson pair should be produced as often with and without an accompanying charged pion. We also calculate two pion production at this center of mass energy, and find that it is negligible, as is the rate for rho production. We consider the implications for CP violation studies. (Invited Talk, 1993 Electroweak Rencontres de Moriond)

  17. Influence of Accompanying Anions on Potassium Retention and Leaching in Potato Growing Alluvial Soils

    V.SHARMA; K.N.SHARMA

    2013-01-01

    A column study was carried out to assess the influence of accompanying anions on potassium (K) leaching at potato growing sites with different soil textures (sandy loam and clay loam) in northwestern India.Potassium was applied in the top 15 cm layer of soil column at 30 and 60 mg K kg-1 through different sources having different accompanying anions (Cl-,SO42-,NO3-and H2PO4-).Maximum K was retained in the top 0-15 cm layer with a sharp decrease in K content occurring in 15-30 cm layer of the soil column.The trend was similar for both levels of applied K as well as frequency of leaching and soil type.The decrease of K content in soil column after four leaching events was maximum in case of Khanaura sandy loam,while only minor decrease was observed in Hundowal clay loam when K was applied at 60 mg K kg-1,indicating higher potential of clay rich soil to adsorb K.In general,the K leaching in presence of the accompanying anions followed the order of SO42-≤ H2PO42-< NO3-=Cl-.Highest 1 mol L-1 CH3COONH4-extractable K was retained when K was applied along with SO42-and H2PO4-anions,and the least was retained when accompanying anion was Cl-.The influence of anions was more pronounced in the light textured soil and at high amounts of K application.Higher levels of K application resulted in higher losses of K,especially in sandy loam soil as observed from the leachate concentration.Among the different K sources,the maximum amount of K leaching was noticed in the soil column amended with KCl.After four leachings,the maximum amount of K leached out was 6.40 mg L-1 in Hundowal clay loam and 9.29 mg L-1 in Khanaura sandy loam at 60 mg K kg-1 of soil application through KCl.These concentrations were lower than the recommended guideline of the World Health Organisation (12.00 mg L-1).

  18. X-ray microbeam quantification of grain subdivision accompanying large deformations of copper

    Butler, G.C.; Guvenilir, A.; McDowell, D.L.; Stock, S.R. [Georgia Inst. of Tech., Atlanta, GA (United States)

    1998-12-31

    Polychromatic synchrotron x-ray microbeams offer a very efficient alternative to electron beam methods for quantifying the amount and character of grain subdivision accompanying large deformations. With a 0.01 mm diameter collimator, bending magnet radiation from a 3.0 GeV source and image storage plates, samples of copper with thicknesses greater than 0.1 mm have been studied. Results from an as-received sample and a sample deformed to 100% torsion are compared and illustrate how efficiently grain subdivision can be quantified with polychromatic microbeam diffraction.

  19. The emission of atoms and molecules accompanying fracture of single-crystal MgO

    Dickinson, J. T.; Jensen, L. C.; Mckay, M. R.; Freund, F.

    1986-01-01

    The emission of particles due to deformation and fracture of materials has been investigated. The emission of electrons (exoelectron emission), ions, neutral species, photons (triboluminescence), as well as long wavelength electromagnetic radiation was observed; collectively these emissions are referred to as fractoemission. This paper describes measurements of the neutral emission accompanying the fracture of single-crystal MgO. Masses detected are tentatively assigned to the emission of H2, CH4, H2O, CO, O2, CO2, and atomic Mg. Other hydrocarbons are also observed. The time dependencies of some of these emissions relative to fracture are presented for two different loading conditions.

  20. Solutions manual to accompany An introduction to numerical methods and analysis

    Epperson, James F

    2014-01-01

    A solutions manual to accompany An Introduction to Numerical Methods and Analysis, Second Edition An Introduction to Numerical Methods and Analysis, Second Edition reflects the latest trends in the field, includes new material and revised exercises, and offers a unique emphasis on applications. The author clearly explains how to both construct and evaluate approximations for accuracy and performance, which are key skills in a variety of fields. A wide range of higher-level methods and solutions, including new topics such as the roots of polynomials, sp

  1. Solutions manual to accompany Combinatorial reasoning an introduction to the art of counting

    DeTemple, Duane

    2014-01-01

    This is a solutions manual to accompany Combinatorial Reasoning: An Introduction to the Art of CountingWritten by well-known scholars in the field, Combinatorial Reasoning: An Introduction to the Art of Counting introduces combinatorics alongside modern techniques, showcases the interdisciplinary aspects of the topic, and illustrates how to problem solve with a multitude of exercises throughout. The authors'' approach is very reader-friendly and avoids the ""scholarly tone"" found in many books on this topic.  

  2. [Patients at the end of life in the intensive care unit: cultural aspects of accompaniment].

    Grom, I-U; Vagts, D A; Kampa, U; Pfeiffer, G; Schreiber-Winzig, L; Wiese, C H R

    2013-06-01

    The accompaniment of people in the face of death offers insights into dimensions which are mostly not seen in ordinary life. These insights also exist in intensive care in German hospitals and are highly relevant in medical decision making. End-of-life decisions in particular often determine medical, cultural and spiritual aspects concerning medical treatment and therapeutic targets and if necessary new therapy targets. The following article especially illuminates cultural aspects and their characteristics in patients at the end of life in the intensive care unit.

  3. In situ electrochemical scanning tunneling microscopy investigation of renewing graphite surface accompanied by electrochemical reaction

    Zhang, Jingdong; Zhu, Guoyi; Wang, Erkang

    1996-08-01

    In situ electrochemical scanning tunneling microscopy (ECSTM) has been employed to follow the renewal process of a graphite electrode accompanied by flavin adenine dinucleotide (FAD) electrochemical reaction which involves adsorption of the reduced form (FADH 2) and desorption of the oxidized form (FAD). The renewal process initiates from steps or kinks on the electrode surface, which provide high active sites for adsorption. This renewal depends on the working electrode potential, especially in the range near the FAD redox potential. Our experiment suggests that delamination of the graphite surface is caused by interaction between the substrate and adsorbed molecules. A simple model is proposed to explain this phenomenon.

  4. A case of Parkes-Weber syndrome accompanied by pseudo-Kaposi's sarcoma%Parkes-Weber综合征伴假性Kaposi肉瘤一例

    唐金玲; 树叶; 陈卫坚; 罗勇奇; 汤建萍

    2014-01-01

    患者女,8岁7个月.右臀部紫红色斑8年,右下肢较左下肢逐渐增大7年余,多发性赘生物1年.皮肤科检查:右下肢较左下肢肥大且长,皮肤鲜红斑痣,皮温增高及皮肤大量赘生物伴有恶臭.X线、磁共振成像、多普勒超声提示高流速脉管畸形.皮肤病理可见血管增生,成纤维细胞增生及红细胞外溢,诊断为伴假性Kaposi肉瘤的Parkes-Weber综合征.%A girl who aged eight years and seven months presented with prunosus patches on the right buttock for 8 years,gradual unilateral enlargement of the right lower limb for more than 7 years,and multiple vegetations for 1 year.Dermatological examination showed nevus flammeus and multiple malodorous vegetations over the right lower limb with high skin temperature.The right lower limb was thicker and longer than the left lower limb.X-ray examination,magnetic resonance imaging and Doppler ultrasound examination revealed high-flow vascular malformations.Pathological examination of the vegetations showed vascular proliferation,fibroblast proliferation and erythrocyte extravasation.She was diagnosed as Parkes-Weber syndrome accompanied by pseudo-Kaposi's sarcoma.

  5. Proliferation of osteoblast cells on nanotubes

    F.WATARI; T.AKASAKA; Xiaoming LI; M.UO; A.YOKOYAMA

    2009-01-01

    Carbon nanotubes (CNT) have a unique structme and feature. In the present study, cell proliferation was performed on the scaffolds of single-walled CNTs (SWCNT), multiwalled CNTs (MWCNT), and on gra-phita, one of the representative isomorphs of pure carbon,for the sake of comparison. Scanning electron microscopy observation of the growth of osteoblast-like cells (Saps2) cultttred on CNTs showed the morphology fully developed for the whole direction, which is different from that extended to one direction on the usual scaffold. Numerous filopodia were grown from cell edge, extended far long and combined with the CNT meshwork. CNTs showed the affinity for collagen and proteins. Proliferated cell numbers are largest on SWCNTs, followed by MWCNTs, and are very low on graphite. This is in good agreement with the sequence in the results of the adsorbed amount of proteins and expression of alkaline phosphatase activity for these scaffolds. The adsorption of protains would be one of the most influential factors to make a contrast difference in cell attachment and proliferation between graphite and CNTs,both of which are isomorphs of carbon and composed of similar graphene sheet crystal structure. In addition, the nanosize meshwork structure with large porosity is another properly responsible for the excellent cell adhesion and growth on CNTs. CNTs could be the favorable materials for biomedical applications.CNTs with different structures and compositions have been synthesized and discovered [3]. Nanomaterials [2-9] and nanocomposites [10-15] may have various effects onliving organisms. In this study, a fundamental study for biomedical application, cell proliferation was performed on various nanotubes (biT), including (1) single-walled CNTs (SWCNT), (2) multiwalled CNTs (MWCNT), and on graphite, an isomorph of CNT, as a comparison.Figure 1 shows the schematic figures of two different crystal structures of carbon: graphite and CNT. Graphite has the layer-by-layer laminated

  6. Nuclear Energy, Nuclear Weapons Proliferation, and the Arms Race.

    Hollander, Jack, Ed.

    A symposium was organized to reexamine the realities of vertical proliferation between the United States and the Soviet Union and to place into perspective the horizontal proliferation of nuclear weapons throughout the world, including the possible role of commercial nuclear power in facilitating proliferation. The four invited symposium…

  7. A Profile of WMD Proliferants: Are There Commonalities?

    1999-05-01

    Abdul Qadeer Khan............................................................................................. 9 General Anatoly Kuntsevich ... Kuntsevich (Taken from Russian Television)....................... 16 v Tables Page Table 1. Summary of Proliferant Backgrounds...Abdul Qadeer Khan who specializes in the proliferation of nuclear weapons, General Anatoly Kuntsevich who specializes in the proliferation of chemical

  8. CCR1, an enzyme required for lignin biosynthesis in Arabidopsis, mediates cell proliferation exit for leaf development

    Xue, Jingshi; Luo, Dexian; Xu, Deyang;

    2015-01-01

    exit in leaves. CCR1 is expressed basipetally in the leaf, and ccr1 mutants exhibited multiple abnormalities, including increased cell proliferation. The ccr1 phenotypes are not due to the reduced lignin content, but instead are due to the dramatically increased level of ferulic acid (FeA......), an intermediate in lignin biosynthesis. FeA is known to have antioxidant activity, and the levels of reactive oxygen species (ROS) in ccr1 were markedly reduced. We also characterized another double mutant in CAFFEIC ACID O-METHYLTRANSFERASE (comt) and CAFFEOYL CoA 3-O-METHYLTRANSFERASE (ccoaomt), in which the FeA...... level was dramatically reduced. Cell proliferation in comt ccoaomt leaves was decreased, accompanied by elevated ROS levels, and the mutant phenotypes were partially rescued by treatment with FeA or another antioxidant (N-acetyl-L-cysteine). Taken together, our results suggest that CCR1, FeA and ROS...

  9. Proliferation resistance design of a plutonium cycle (Proliferation Resistance Engineering Program: PREP)

    Sorenson, R.J.; Roberts, F.P.; Clark, R.G.

    1979-01-19

    This document describes the proliferation resistance engineering concepts developed to counter the threat of proliferation of nuclear weapons in an International Fuel Service Center (IFSC). The basic elements of an International Fuel Service Center are described. Possible methods for resisting proliferation such as processing alternatives, close-coupling of facilities, process equipment layout, maintenance philosophy, process control, and process monitoring are discussed. Political and institutional issues in providing proliferation resistance for an International Fuel Service Center are analyzed. The conclusions drawn are (1) use-denial can provide time for international response in the event of a host nation takeover. Passive use-denial is more acceptable than active use-denial, and acceptability of active-denial concepts is highly dependent on sovereignty, energy dependence and economic considerations; (2) multinational presence can enhance proliferation resistance; and (3) use-denial must be nonprejudicial with balanced interests for governments and/or private corporations being served. Comparisons between an IFSC as a national facility, an IFSC with minimum multinational effect, and an IFSC with maximum multinational effect show incremental design costs to be less than 2% of total cost of the baseline non-PRE concept facility. The total equipment acquisition cost increment is estimated to be less than 2% of total baseline facility costs. Personnel costs are estimated to increase by less than 10% due to maximum international presence. 46 figures, 9 tables.

  10. The Harmonic Walk: An Interactive Physical Environment to Learn Tonal Melody Accompaniment

    Marcella Mandanici

    2016-01-01

    Full Text Available The Harmonic Walk is an interactive physical environment designed for learning and practicing the accompaniment of a tonal melody. Employing a highly innovative multimedia system, the application offers to the user the possibility of getting in touch with some fundamental tonal music features in a very simple and readily available way. Notwithstanding tonal music is very common in our lives, unskilled people as well as music students and even professionals are scarcely conscious of what these features actually are. The Harmonic Walk, through the body movement in space, can provide all these users a live experience of tonal melody structure, chords progressions, melody accompaniment, and improvisation. Enactive knowledge and embodied cognition allow the user to build an inner map of these musical features, which can be acted by moving on the active surface with a simple step. Thorough assessment tests with musicians and nonmusicians high school students could prove the high communicative power and efficiency of the Harmonic Walk application both in improving musical knowledge and in accomplishing complex musical tasks.

  11. Case of absence of the septum pellucidum accompanied with hydrocephalus and detected by computerized tomography

    Tominaga, K.; Kobayashi, E.; Yamamoto, K.; Asakura, T. (Kagoshima Univ. (Japan). Faculty of Medicine)

    1981-06-01

    A case of absence of the septum pellucidum accompanied with hydrocephalus in a 56 year old woman who had complained headache, dizziness and numbness of left leg was reported. Absence of the septum pellucidum in this case had not been detected until CT scan was performed. Ventriculoperitoneal shunt was performed, then her complaints were cleared up. The discussion was limited as far as possible to absence of the septum pellucidum without agenesis of the corpus callosum with a few references. Encephalographic characteristics of absence of the septum pellucidum were first noted by Foster in 1935. The real prevalence should lie at about 1 : 400 in a sufficiently large encephalographical series, which should be an estimate between 2 and 3 per 100,000 of population. Encephalography, although, afflicts patients with headache, nausea and vomiting, moreover it accompanied with possible intracranial infection. On the other hand, CT scan has cleared up these problems, we can perform it easily in many cases, and know about status of the septum pellucidum. Further examination for more distinct information are taken by coronal section and ''high definition 5 mm slice thickness'' of CT scan.

  12. Metastatic Crohn's disease accompanying granulomatous vasculitis and lymphangitis in the vulva.

    Ishida, Mitsuaki; Iwai, Muneo; Yoshida, Keiko; Kagotani, Akiko; Okabe, Hidetoshi

    2013-01-01

    Metastatic Crohn's disease (CD) is an extremely rare extragastrointestinal manifestation of CD, and is characterized histopathologically by the presence of non-caseating granulomatous inflammation. Granulomatous vasculitis and lymphangitis have rarely been documented in metastatic CD. Herein, we report the first documented case of metastatic CD accompanied by both granulomatous vasculitis and lymphangitis in the vulva. A 35-year-old Japanese female with CD presented with multiple small nodules in her vulva. Biopsy was performed under a clinical diagnosis of genital warts. A histopathological study revealed marked lymphangiectasia in the papillary dermis. Within the dilated lymphatics, lymphocytes and aggregates of macrophages were present, which are typical features of granulomatous lymphangitis. Tiny non-caseating granulomas and granulomatous vasculitis were also observed. Accordingly, a diagnosis of metastatic CD accompanied by both granulomatous vasculitis and lymphangitis was made. The occurrence of cutaneous lesions in patients with CD is well known. Albeit extremely rare, lymphangiectasia has been reported in the vulva of CD patients that clinically mimicked viral warts, as in the present case. The diagnosis of metastatic CD in the present case was not difficult because characteristic histopathological features were present, and a clinical history of CD was available. However, a few cases of genital swelling associated with granulomatous inflammation prior to a diagnosis of gastrointestinal CD have been documented. Therefore, granulomatous vasculitis and lymphangitis in the external genitals should be considered as potential indication of metastatic CD even in cases without a history of gastrointestinal CD.

  13. Umbilicoplasty for large protruding umbilicus accompanying umbilical hernia: a simple and effective technique.

    Ikeda, Hitoshi; Yamamoto, Hideki; Fujino, Junko; Kisaki, Yoshiyuki; Uchida, Hiroo; Ishimaru, Yuki; Hasumi, Toshiaki; Hamajima, Akito

    2004-02-01

    A large umbilical protrusion with redundant skin accompanying an umbilical hernia sometimes needs umbilicoplasty. Although several different techniques for making umbilical depression have been used, the results of the plastic surgery are sometimes unsatisfactory due to postoperative flattening or disappearance of the umbilical depression. To make a permanent umbilical depression that is cosmetically acceptable, we have modified the techniques. Umbilicoplasty was performed in 14 children whose ages ranged from 6 months-6 years and 3 months (median, 1 year and 10 months) and who had umbilical hernia with a large umbilical protrusion. After the fascial defect was closed, the diameter of the umbilicus was reduced to half that before surgery by removing fan-shaped skin flaps and approximating skin edges, and then inverting the umbilicus and fixing it caudally to the fascia and skin. There were no postoperative complications, and no flattening or disappearance of umbilical depression was observed during the follow-up of 10-19 months. The authors' technique of umbilicoplasty for a large protruding umbilicus accompanying umbilical hernia is a simple method that produces acceptable cosmetic results.

  14. Measurement of the specific airway resistance by plethysmography in young children accompanied by an adult

    Klug, B; Bisgaard, H

    1997-01-01

    The purpose of this study was to evaluate a procedure for measurement of specific airway resistance (sRaw) by whole body plethysmography in young awake children accompanied by an adult. sRaw was measured by a single-step procedure, omitting the measurement of the thoracic gas volume. The frequency...... dependency of sRaw was investigated and the accuracy of simulating body temperature, atmospheric pressure and saturation with water vapour (BTPS) conditions by electronic compensation was assessed. One hundred and thirty one children with asthma were studied. In 57 children (mean (SD) age 5.6 (1.8) yrs) who...... performed measurements with and without an accompanying adult, the mean value of sRaw was 1.45 (0.36) and 1.44 (0.38) kPa x s, respectively, with a mean difference of 0.008 (0.152) kPa x s, and mean within-subject coefficients of variations (CV) of 8% and 10%, respectively. In 52 children (mean age 3.3 (0...

  15. Acrolein and Human Disease: Untangling the Knotty Exposure Scenarios Accompanying Several Diverse Disorders.

    Burcham, Philip C

    2017-01-17

    Acrolein is a highly toxic electrophile that participates in many diseases, yet efforts to delineate its precise mechanistic contributions to specific conditions are complicated by its wide distribution within human environments. This Perspective develops the proposal that due to its mixed status as environmental pollutant, metabolic byproduct, and endotoxicant which forms via ubiquitous pathophysiological processes, many diseases likely involve acrolein released from multiple sources. Although the category boundaries are indistinct, at least four identifiable exposure scenarios are identifiable. First, in some syndromes, such as those accompanying chronic or acute intoxication with smoke, whatever role acrolein plays in disease pathogenesis mainly traces to exogenous sources such as the combustion of tobacco or other organic matter. A second exposure category involves xenobiotics that undergo metabolism within the body to release acrolein. Still other health conditions, however, involve acrolein that forms via several endogenous pathways, some of which are activated upon intoxication with xenobiotics (i.e., Exposure Category 3), while still others accompany direct physical trauma to body tissues (Exposure Category 4). Further complicating efforts to clarify the role of endogenous acrolein in human disease is the likelihood that many such syndromes are complex phenomena that resemble "chemical mixture exposures" by involving multiple toxic substances simultaneously. This Perspective contends that while recent decades have witnessed much progress in describing the deleterious effects of acrolein at the cellular and molecular levels, more work is needed to define the contributions of different acrolein sources to "real-world" health conditions in human subjects.

  16. Theta burst stimulation in the treatment of incapacitating tinnitus accompanied by severe depression.

    Soekadar, Surjo R; Arfeller, Carola; Rilk, Albrecht; Plontke, Stefan K; Plewnia, Christian

    2009-04-01

    This case report describes the use of transcranial magnetic theta burst stimulation (TBS) in the treatment of incapacitating tinnitus accompanied by symptoms of severe depression. Tinnitus is known to be associated with hyperactivity and maladaptive cortical reorganization of the central auditory system. Combined with anxiety and depression, it can occasionally constitute a psychiatric emergency. Recently, it has been demonstrated that tinnitus can be temporarily suppressed by non-invasive transcranial magnetic stimulation. TBS is a newly developed technique for rapid and lasting modulation of cortical excitability. Herein, we present a case of a 54-year-old woman with incapacitating tinnitus that has significantly decreased after three cycles of 1-week treatment with continuous TBS to the temporo-parietal auditory association cortex. According to the Tinnitus Questionnaire, tinnitus intensity decreased from 84 points before to 59 points after treatment. Hamilton Rating Scale for Depression score dropped from 44 to 23 points. TBS showed to be efficient, well-tolerated, and practical in the management of distressing tinnitus accompanied by symptoms of severe depression.

  17. Influence of accompanying substances of hemp fibres on their electric resistance

    Pejić Biljana

    2006-01-01

    Full Text Available Hemp fibres belong to the group of natural, cellulose bast fibres. These fibres have exceptional properties such as: antimicrobial effect, absence of allergy effect, extraordinary sorption properties, good electro-physical properties (small static electricity in regard to other cellulose fibres as well as high values of breaking strength (the natural fibre with the highest strength. However, hemp fibres have some defects: heterogeneous chemical composition, large quantity of accompanying substances (lignin pectins, waxes and unsatisfactory fineness and eveness. It is possible to a great extent to eliminate or reduce, the defects of hemp fibres by of appropriate modification treatments. In order to determine the appropriate modification treatment of hemp fibres, the dependences between the chemical composition, fineness and electric resistance of hemp fibres were presented in this paper. In the experimental part of the paper, by the application of a procedure for the determination of the chemical composition, the accompanying supstances of hemp fibres were gradually removed. After each phase some fibrous substrates were separated. After that the fineness and electric resistance were determined. This experiment was conducted in order to define the influence of each component of hemp fibres on the fineness and electric resistance. In this paper, hemp fibres were modified by an aqueous solution of sodium hydroxide, under different conditions of modification. The influence of modification conditions on the fineness and electric resistance were studied.

  18. Analysis of Pathogen Distribution and Drug Resistance of Nosocomial Infections Accompanied in Patients with Malignant Tumor

    YAO Dong-mei; CAO Wei; QING Zhi-ju

    2008-01-01

    Objective:To investigate the pathogen distribution and drug resistance of nosocomial infections accompanied in patients with malignant tumor.Methods:The pathogen culture and drug-sensitivity data of 107 specimens isolated from malignant tumor patients accompanied with nosocomial infection were retrospectively analyzed.Results:Among 118 strains of pathogens isolated from 107 specimens,77 were gram-negative bacillus(65.3%),26 were gram-positive coccus(65.3%),and 15 were fungus(12.7%).Eleven specimens were revealed to have combined infection of bacterium and fungus.Gram-negative bacillus showed high sensitivity to amikacin,ciprofloxacin,and tienam.Gram-positive cocci were highly sensitive to tienam and vancomycin.The bacteria were resistant to other antibiotics in different degrees.Vancomycin-resistant staphylococcus was not detected.Candida was sensitive to antifungals.Conclusion:Conditional pathogenic bacteria were mainly responsible for nosocomial infections in malignant tumor patients with considerable drug resistance.This shows that bacterial tests and the rational use of antibiotics should be emphasized in clinical practice to prevent the formation of drug resistant strains and further endogenous infections.

  19. Bound magnetic exciton polaron accompanied by large lattice displacement and luminescence in EuSe

    Umehara, Masakatsu

    1998-08-01

    We have studied the luminescence in EuSe using the photoinduced localized magnetic polaron (PILMP) model previously proposed for EuTe (Phys. Rev. B 52 (1995) 8140). This paper shows the characteristics of the luminescence around 1.47 eV recently reported (J. Phys. Soc. Japan 63 (1994) 4616) for EuSe is consistent with this model. The PILMP is bound to the localized 4f hole that is created in the photoabsorption process, and accompanies a large lattice displacement induced by the 4f hole. By taking into account this large lattice displacement, we can understand the characteristics of the luminescence, such as the emission energy, the Stokes shift and the spectrum width, quantitatively. The existence of the large lattice displacement is a common feature for EuTe and EuSe. On the other hand, the magnetic polaron effect in EuSe is quite large in comparison to that in EuTe, which causes the difference in the temperature dependence of the emission energy and the spectrum width between EuTe and EuSe. Through the analysis of the luminescence in EuSe, we can see a typical magnetic polaron bound to the 4f hole, that is a bound magnetic exciton polaron accompanied by the large lattice displacement.

  20. Increased susceptibility to fungal disease accompanies adaptation to drought in Brassica rapa.

    O'Hara, Niamh B; Rest, Joshua S; Franks, Steven J

    2016-01-01

    Recent studies have demonstrated adaptive evolutionary responses to climate change, but little is known about how these responses may influence ecological interactions with other organisms, including natural enemies. We used a resurrection experiment in the greenhouse to examine the effect of evolutionary responses to drought on the susceptibility of Brassica rapa plants to a fungal pathogen, Alternaria brassicae. In agreement with previous studies in this population, we found an evolutionary shift to earlier flowering postdrought, which was previously shown to be adaptive. Here, we report the novel finding that postdrought descendant plants were also more susceptible to disease, indicating a rapid evolutionary shift to increased susceptibility. This was accompanied by an evolutionary shift to increased specific leaf area (thinner leaves) following drought. We found that flowering time and disease susceptibility displayed plastic responses to experimental drought treatments, but that this plasticity did not match the direction of evolution, indicating that plastic and evolutionary responses to changes in climate can be opposed. The observed evolutionary shift to increased disease susceptibility accompanying adaptation to drought provides evidence that even if populations can rapidly adapt in response to climate change, evolution in other traits may have ecological effects that could make species more vulnerable.

  1. Effects of SCR-3 on the immunosuppression accompanied with the systemic inflammatory response syndrome.

    Li, Jun; Niu, Jie; Ou, Shan; Ye, Zhan-Yong; Liu, Deng-Qun; Wang, Feng-Chao; Su, Yong-Ping; Wang, Jun-Ping

    2012-05-01

    Steroid receptor coactivator-3 (SRC-3) is a multifunctional protein that plays an important role in mammary gland growth, development, and tumorigenesis. In this study, SCR-3 gene knockout mice were used to study the effects of SCR-3 on the immunosuppression accompanied with systemic inflammatory response syndrome (SIRS). Bacterial clearance assay was performed by blood culture and frozen sections, and the results showed that the absence of SCR-3 protein serious damaged the innate immune system and the body's ability to inactivate or phagocytosis of bacteria was significantly decreased, and the absence of SCR-3 protein also weakened phagocytes' ability to degrade bacteria and their metabolites. Furthermore, animal model of inflammatory reaction was established and the immune function was determined, and the results revealed that SRC-3 protein may play an important role in maintenance of T-cells' immune function, and severe T-cell immune function disorder would be resulted once SRC-3 protein is missing. In addition, the results of our study showed the steady-state of lymphocyte subsets was destroyed after SIRS, leading the suppression of cellular immune function, and the absence of SCR-3 protein may aggravate the suppression of T-lymphocyte function. Therefore, the present study demonstrated that the absence of SCR-3 protein would aggravate immunosuppression. In addition, SRC-3 protein is a significant regulator of infection and inflammation, and SRC-3 protein play an essential role in the development of immunosuppression accompanied with SIRS.

  2. Patterns of Apoptosis and Proliferation throughout the Biennial Reproductive Cycle of Viviparous Female Typhlonectes compressicauda (Amphibia, Gymnophiona

    Michel Raquet

    2016-12-01

    Full Text Available Typhlonectes compressicauda is an aquatic gymnophionan amphibian living in South America. Its breeding cycle is linked to seasons, characterized by a regular alternation of rainy and dry seasons. During a complex biennial cycle, the female genital tract undergoes a series of alternations of increasing and decreasing, governed by equilibrium of proliferation and apoptotic phenomena. Immunohistochemical methods were used to visualize cell proliferation with the detection of Ki67 antibody, a protein present in proliferative cells; terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL and Apostain were performed to detect apoptotic cells on sections of ovaries and oviducts. In ovaries, both phenomena affect the germinal nests and follicles according to the cycle period. In the oviduct, the balance was in favor of proliferation during preparation for reproduction, and in favor of apoptosis when genital ducts regress. Apoptosis and proliferation are narrowly implicated in the remodeling of the genital tract and they are accompanied by the differentiation of tissues according to the phase of the breeding cycle. These variations permit the capture of oocytes at ovulation, always at the same period, and the parturition after 6–7 months of gestation, at a period in which the newborns live with their mother, protected in burrows in the mud. During the intervening year of sexual inactivity, the female reconstitutes body reserves.

  3. Ghrelin inhibits proliferation and increases T-type Ca{sup 2+} channel expression in PC-3 human prostate carcinoma cells

    Diaz-Lezama, Nundehui; Hernandez-Elvira, Mariana [Laboratory of Neuroendocrinology, Institute of Physiology, Autonomous University of Puebla (BUAP), Puebla (Mexico); Sandoval, Alejandro [School of Medicine FES Iztacala, National Autonomous University of Mexico (UNAM), Tlalnepantla (Mexico); Monroy, Alma; Felix, Ricardo [Department of Cell Biology, Center for Research and Advanced Studies of the National Polytechnic Institute (Cinvestav-IPN), Mexico City (Mexico); Monjaraz, Eduardo, E-mail: emguzman@siu.buap.mx [Laboratory of Neuroendocrinology, Institute of Physiology, Autonomous University of Puebla (BUAP), Puebla (Mexico)

    2010-12-03

    Research highlights: {yields} Ghrelin decreases prostate carcinoma PC-3 cells proliferation. {yields} Ghrelin favors apoptosis in PC-3 cells. {yields} Ghrelin increase in intracellular free Ca{sup 2+} levels in PC-3 cells. {yields} Grelin up-regulates expression of T-type Ca{sup 2+} channels in PC-3 cells. {yields} PC-3 cells express T-channels of the Ca{sub V}3.1 and Ca{sub V}3.2 subtype. -- Abstract: Ghrelin is a multifunctional peptide hormone with roles in growth hormone release, food intake and cell proliferation. With ghrelin now recognized as important in neoplastic processes, the aim of this report is to present findings from a series of in vitro studies evaluating the cellular mechanisms involved in ghrelin regulation of proliferation in the PC-3 human prostate carcinoma cells. The results showed that ghrelin significantly decreased proliferation and induced apoptosis. Consistent with a role in apoptosis, an increase in intracellular free Ca{sup 2+} levels was observed in the ghrelin-treated cells, which was accompanied by up-regulated expression of T-type voltage-gated Ca{sup 2+} channels. Interestingly, T-channel antagonists were able to prevent the effects of ghrelin on cell proliferation. These results suggest that ghrelin inhibits proliferation and may promote apoptosis by regulating T-type Ca{sup 2+} channel expression.

  4. Dynamic Alterations to α-Actinin Accompanying Sarcomere Disassembly and Reassembly during Cardiomyocyte Mitosis.

    Fan, Xiaohu; Hughes, Bryan G; Ali, Mohammad A M; Cho, Woo Jung; Lopez, Waleska; Schulz, Richard

    2015-01-01

    Although mammals are thought to lose their capacity to regenerate heart muscle shortly after birth, embryonic and neonatal cardiomyocytes in mammals are hyperplastic. During proliferation these cells need to selectively disassemble their myofibrils for successful cytokinesis. The mechanism of sarcomere disassembly is, however, not understood. To study this, we performed a series of immunofluorescence studies of multiple sarcomeric proteins in proliferating neonatal rat ventricular myocytes and correlated these observations with biochemical changes at different cell cycle stages. During myocyte mitosis, α-actinin and titin were disassembled as early as prometaphase. α-actinin (representing the sarcomeric Z-disk) disassembly precedes that of titin (M-line), suggesting that titin disassembly occurs secondary to the collapse of the Z-disk. Sarcomere disassembly was concurrent with the dissolution of the nuclear envelope. Inhibitors of several intracellular proteases could not block the disassembly of α-actinin or titin. There was a dramatic increase in both cytosolic (soluble) and sarcomeric α-actinin during mitosis, and cytosolic α-actinin exhibited decreased phosphorylation compared to sarcomeric α-actinin. Inhibition of cyclin-dependent kinase 1 (CDK1) induced the quick reassembly of the sarcomere. Sarcomere dis- and re-assembly in cardiomyocyte mitosis is CDK1-dependent and features dynamic differential post-translational modifications of sarcomeric and cytosolic α-actinin.

  5. Genome-wide changes accompanying knockdown of fatty acid synthase in breast cancer

    Smith Jeffrey W

    2007-06-01

    Full Text Available Abstract Background The lipogenic enzyme fatty acid synthase (FAS is up-regulated in a wide variety of cancers, and is considered a potential metabolic oncogene by virtue of its ability to enhance tumor cell survival. Inhibition of tumor FAS causes both cell cycle arrest and apoptosis, indicating FAS is a promising target for cancer treatment. Results Here, we used gene expression profiling to conduct a global study of the cellular processes affected by siRNA mediated knockdown of FAS in MDA-MB-435 mammary carcinoma cells. The study identified 169 up-regulated genes (≥ 1.5 fold and 110 down-regulated genes (≤ 0.67 fold in response to knockdown of FAS. These genes regulate several aspects of tumor function, including metabolism, cell survival/proliferation, DNA replication/transcription, and protein degradation. Quantitative pathway analysis using Gene Set Enrichment Analysis software further revealed that the most pronounced effect of FAS knockdown was down-regulation in pathways that regulate lipid metabolism, glycolysis, the TCA cycle and oxidative phosphorylation. These changes were coupled with up-regulation in genes involved in cell cycle arrest and death receptor mediated apoptotic pathways. Conclusion Together these findings reveal a wide network of pathways that are influenced in response to FAS knockdown and provide new insight into the role of this enzyme in tumor cell survival and proliferation.

  6. Role of prostaglandin receptor EP2 in the regulations of cancer cell proliferation, invasion, and inflammation.

    Jiang, Jianxiong; Dingledine, Ray

    2013-02-01

    Population studies, preclinical, and clinical trials suggest a role for cyclooxygenase-2 (COX-2, PTGS2) in tumor formation and progression. The downstream prostanoid receptor signaling pathways involved in tumorigenesis are poorly understood, although prostaglandin E2 (PGE(2)), a major COX-2 metabolite which is usually upregulated in the involved tissues, presumably plays important roles in tumor biology. Taking advantage of our recently identified novel selective antagonist for the EP2 (PTGER2) subtype of PGE(2) receptor, we demonstrated that EP2 receptor activation could promote prostate cancer cell growth and invasion in vitro, accompanied by upregulation of the tumor-promoting inflammatory cytokines, such as IL-1β and IL-6. Our results suggest the involvement of prostaglandin receptor EP2 in cancer cell proliferation and invasion possibly via its inflammatory actions, and indicate that selective blockade of the PGE(2)-EP2 signaling pathway via small molecule antagonists might represent a novel therapy for tumorigenesis.

  7. Director`s series on proliferation

    Bailey, K.C.; Price, M.E. [eds.

    1994-08-12

    This fifth edition contains some of the papers that were presented in July 1994 at the Lawrence Livermore National conference entitled ``NPT: Review and Extension.`` Topics covered include: strategic warning and new nuclear states, the future for nuclear weapons, possibly stopping North Korean nukes without a war, Article VI of the nuclear non-proliferation treaty from the Chinese perspective, Article VI issues, Article VI and other NPT issues form the perspective of Russia, NPT review and extension, and finally problems facing total nuclear disarmament.

  8. Sensor Fusion for Nuclear Proliferation Activity Monitoring

    Adel Ghanem, Ph D

    2007-03-30

    The objective of Phase 1 of this STTR project is to demonstrate a Proof-of-Concept (PoC) of the Geo-Rad system that integrates a location-aware SmartTag (made by ZonTrak) and a radiation detector (developed by LLNL). It also includes the ability to transmit the collected radiation data and location information to the ZonTrak server (ZonService). The collected data is further transmitted to a central server at LLNL (the Fusion Server) to be processed in conjunction with overhead imagery to generate location estimates of nuclear proliferation and radiation sources.

  9. Comprehensive evaluation of functional and anatomical disorders of the patients with distal occlusion and accompanying obstructive sleep apnea syndrome

    Nabiev, F. H.; Dobrodeev, A. S.; Libin, P. V.; Kotov, I. I.; Ovsyannikov, A. G.

    2015-11-01

    The paper defines the therapeutic and rehabilitation approach to the patients with Angle's classification Class II dento-facial anomalies, accompanied by obstructive sleep apnea (OSA). The proposed comprehensive approach to the diagnostics and treatment of patients with posterior occlusion, accompanied by OSA, allows for objective evaluation of intensity of a dento-facial anomaly and accompanying respiratory disorders in the nasal and oral pharynx, which allows for the pathophysiological mechanisms of OSA to be identified, and an optimal plan for surgical procedures to be developed. The proposed comprehensive approach to the diagnostics and treatment of patients with Angle's classification Class II dento-facial anomalies provides high functional and aesthetic results.

  10. The impact of foreign postings on accompanying military spouses: an ethnographic study

    Gillian Blakely

    2014-08-01

    Full Text Available As part of an ethnographic study, the impact of foreign postings on spouses who accompany military personnel was explored. Individual interviews and focus groups with 34 British military spouses based in one location in southern Europe were conducted. Key findings suggested that reaction to a foreign posting was a reflection of personal attitudes, prior experiences, support, ability to adjust to change and strength of relationship with the serving spouse and community. For many the experience was positive due to the increased opportunity for family time, for others this helped to compensate for the difficulties experienced. Some military spouses experienced significant distress on the posting, particularly if the family was not well-supported. The potential implications of military spouses not adapting to foreign postings have significant implications for healthcare practice. Provision of more appropriate support resources before and during the posting would facilitate the transition for the military spouse and their family.

  11. EVALUATION OF INFLAMMATORY CHANGES IN JOINTS AT PATIENTS WITH HEMOPHILIA ACCOMPANIED RECURRENT HEMARTHROSIS

    I. L. Davydkin

    2012-01-01

    Full Text Available Objective: to search for new diagnostic approaches for estimating the prevalence of posthemorrhagic phase of inflammation in the joints of patients with hemophilia accompanied recurrent hemarthrosis. Using the method of computerized infrared thermography measured the temperature above the knee, ankle and lower leg. Analysis of the data held with a specially developed algorithm that forms the basis of a computer program for computer (2009. It is established that with increasing temperature over the joint at high risk of recurrence monthly hemarthrosis. If the joint hemarthrosis was not, then an increase in temperature may indicate a latent flowing inflammation. Assessing the prevalence of inflammation in the joints of patients with hemophilia has prognostic value: widespread inflammation is characterized by continuous recurrent course, for a limited - monthly recurrent hemarthrosis, in the absence of inflammation in the joint, as evidenced by normal or low-grade fever, recurrent hemarthrosis are likely rare.

  12. Theory of the Jitter radiation in a magnetized plasma accompanying temperature gradient

    Hattori, Makoto

    2016-01-01

    The linear stability of a magnetized plasma accompanying temperature gradient was reexamined by using plasma kinetic theory. The anisotropic velocity distribution function was decomposed into two components. One is proportional to the temperature gradient parallel to and the other is proportional to the temperature gradient perpendicular to the back ground magnetic field. Since the amplitude of the anisotropic velocity distribution function is proportional to the heat conductivity and the heat conductivities perpendicular to the magnetic field is strongly reduced, the first component of the anisotropic velocity distribution function is predominant. The anisotropic velocity distribution function induced by the temperature gradient along the back ground magnetic field drives plasma kinetic instability and the circular polarized magnetic plasma waves are excited. The instability is almost identical to Weibel instability in weakly magnetized plasma. However, depending on whether wave vectors of modes are parallel...

  13. Student Solutions Manual to accompany Fundamentals of Physics,7th Edition

    Halliday, David; Resnick, Robert; Walker, Jearl; Christman, J. Richard

    2004-06-01

    Work more effectively and check solutions as you go along with the text! This Student Solutions Manual that accompanies Fundamentals of Physics, 7th Edition, provides readers with complete, worked-out solutions to 30% of the end-of-chapter problems. These problems are indicated in the text by an ssm icon. No other book on the market today can match the 30-year success of Halliday, Resnick and Walker's Fundamentals of Physics! In a breezy, easy-to-understand style this Seventh Edition offers a solid understanding of fundamental physics concepts, and helps readers apply this conceptual understanding to quantitative problem solving. This book offers a unique combination of authoritative content and stimulating applications.

  14. [The efficacy and safety of terazosin and tamsulosin in patients with urinary disturbance accompanying prostatic hypertrophy].

    Suzuki, Y; Katoh, T; Isurugi, K; Obara, W; Omori, S; Goto, Y; Fujioka, T; Numasato, S

    2001-01-01

    Terazosin (TE) and tamsulosin (TA) were allocated randomly to 38 patients who had urinary disturbance accompanying prostatic hypertrophy, and the efficacy and safety of the drugs were examined. Subjective symptoms due to I-PSS were improved significantly in both TE and TA groups. On the other hand, objective symptoms such as the maximum urinary flow and mean urinary flow were improved more in the TE group. TE showed hypotensive and cholesterol-decreasing effects in patients who also had hypertension and hyperlipemia. No unknown adverse reactions were observed in either groups, and the drugs were shown to be highly safe. TE was considered to be useful as the first choice drug for the patients with hypertension and or hyperlipemia and those with severe objective symptoms. TA was considered to be useful for the patients with impaired drug compliance or those with severe subjective symptoms though objective symptoms were not so severe.

  15. Cannon Fire Soon to Accompany Bugle Call at Fort Detrick | Poster

    Beginning June 14, the familiar bugle calls at Fort Detrick will be joined by a special percussion instrument: a cannon. A single cannon shot will be fired on the first note of “Reveille,” which signals the start of each day and is accompanied by the raising of the American flag. “Reveille” sounds at 6:30 a.m. At 5 p.m., Fort Detrick plays “Retreat,” which alerts the post that the flag is about to be lowered. The cannon will fire on the last note of “Retreat.” After a five-second pause, “To the Color” plays as the flag is lowered.

  16. Temporal modulations of agonist and antagonist muscle activities accompanying improved performance of ballistic movements.

    Liang, Nan; Yamashita, Takamasa; Ni, Zhen; Takahashi, Makoto; Murakami, Tsuneji; Yahagi, Susumu; Kasai, Tatsuya

    2008-02-01

    Although many studies have examined performance improvements of ballistic movement through practice, it is still unclear how performance advances while maintaining maximum velocity, and how the accompanying triphasic electromyographic (EMG) activity is modified. The present study focused on the changes in triphasic EMG activity, i.e., the first agonist burst (AG1), the second agonist burst (AG2), and the antagonist burst (ANT), that accompanied decreases in movement time and error. Twelve healthy volunteers performed 100 ballistic wrist flexion movements in ten 10-trial sessions under the instruction to "maintain maximum velocity throughout the experiment and to stop the limb at the target as fast and accurately as possible". Kinematic parameters (position and velocity) and triphasic EMG activities from the agonist (flexor carpi radialis) and antagonist (extensor carpi radialis) muscles were recorded. Comparison of the results obtained from the first and the last 10 trials, revealed that movement time, movement error, and variability of amplitudes reduced with practice, and that maximum velocity and time to maximum velocity remained constant. EMG activities showed that AG1 and AG2 durations were reduced, whereas ANT duration did not change. Additionally, ANT and AG2 latencies were reduced. Integrated EMG of AG1 was significantly reduced as well. Analysis of the alpha angle (an index of the rate of recruitment of the motoneurons) showed that there was no change in either AG1 or AG2. Correlation analysis of alpha angles between these two bursts further revealed that the close relationship of AG1 and AG2 was kept constant through practice. These findings led to the conclusion that performance improvement in ballistic movement is mainly due to the temporal modulations of agonist and antagonist muscle activities when maximum velocity is kept constant. Presumably, a specific strategy is consistently applied during practice.

  17. Segmental arterial mediolysis accompanied by renal infarction and pancreatic enlargement: a case report

    Ito Nobuhisa

    2012-09-01

    Full Text Available Abstract Introduction Due to recent advances in imaging diagnostic techniques, there are an increasing number of case reports of segmental arterial mediolysis. However, there are only a limited number of reports on segmental arterial mediolysis-related abnormalities of abdominal organs other than the intestine. This report describes a case of segmental arterial mediolysis accompanied by abnormalities of abdominal organs without clinical symptoms. Case presentation A 52-year-old Japanese man with hematuria and no prior medical history was referred to a urologist and was diagnosed as having urinary bladder cancer. He underwent trans-urethral resection of the bladder tumor and intra-vesical instillation therapy, which was followed by observation. During follow-up, although no abdominal symptoms were observed, an abdominal computed tomography scan revealed a dissection of the superior mesenteric artery. A false lumen partially occluded by a thrombus was located distal to this occlusion. The lumen was irregularly shaped with narrow and wide sections. Similar irregularities were also observed in the wall of the inferior mesenteric artery. Arterial dissection with thromboembolism in the left renal artery and renal infarction was also observed. Follow-up computed tomography after two months revealed an enlargement of the pancreatic tail adjacent to the splenic artery. Follow-up three-dimensional computed tomography showed gradual re-expansion of the true lumen of the superior mesenteric artery, improvement in arterial wall irregularities, and a reduction in the pancreas enlargement and renal infarction. Over the following 15 months, these changes gradually normalized. On the basis of the vascular changes in multiple arterial systems that resolved spontaneously, we considered that the lesions were associated with segmental arterial mediolysis. Conclusions We present a rare case of segmental arterial mediolysis accompanied by abnormalities of abdominal

  18. Neuromodulation of Limb Proprioceptive Afferents Decreases Apnea of Prematurity and Accompanying Intermittent Hypoxia and Bradycardia.

    Kalpashri Kesavan

    Full Text Available Apnea of Prematurity (AOP is common, affecting the majority of infants born at <34 weeks gestational age. Apnea and periodic breathing are accompanied by intermittent hypoxia (IH. Animal and human studies demonstrate that IH exposure contributes to multiple pathologies, including retinopathy of prematurity (ROP, injury to sympathetic ganglia regulating cardiovascular action, impaired pancreatic islet cell and bone development, cerebellar injury, and neurodevelopmental disabilities. Current standard of care for AOP/IH includes prone positioning, positive pressure ventilation, and methylxanthine therapy; these interventions are inadequate, and not optimal for early development.The objective is to support breathing in premature infants by using a simple, non-invasive vibratory device placed over limb proprioceptor fibers, an intervention using the principle that limb movements trigger reflexive facilitation of breathing.Premature infants (23-34 wks gestational age, with clinical evidence of AOP/IH episodes were enrolled 1 week after birth. Caffeine treatment was not a reason for exclusion. Small vibration devices were placed on one hand and one foot and activated in 6 hour ON/OFF sequences for a total of 24 hours. Heart rate, respiratory rate, oxygen saturation (SpO2, and breathing pauses were continuously collected.Fewer respiratory pauses occurred during vibration periods, relative to baseline (p<0.005. Significantly fewer SpO2 declines occurred with vibration (p<0.05, relative to control periods. Significantly fewer bradycardic events occurred during vibration periods, relative to no vibration periods (p<0.05.In premature neonates, limb proprioceptive stimulation, simulating limb movement, reduces breathing pauses and IH episodes, and lowers the number of bradycardic events that accompany aberrant breathing episodes. This low-cost neuromodulatory procedure has the potential to provide a non-invasive intervention to reduce apnea, bradycardia and

  19. Effects of Herbal Acupuncture(Soyeum on Cancer Patients Accompanied by Pain

    Hwa-Seung Yoo

    2003-02-01

    Full Text Available Objectives : This study was designed to evaluate effects of "Soyeum" on cancer patients accompanied by pain. Materials and Methods : We retrospectively analyzed the medical records of 9 patients accompanied by pain who had been injected with "Soyeum" for over 14 days continuously in East-West Cancer Center of Oriental Hospital of Daejeon University from June 2002 through August 2002. Results : The statistical significance between the pre-treatment and post-treatment results (Changes of Cytokine Level, QOL, BPQ and Pain relief after pain management were analyzed. Analysis of cytokines (IL-12, IFN-γ level showed that the percentage of increase of IL-12 is 60.0%, IFN-γ is 60.0%. Analysis of QOL showed that the percentage of maintenance and improvement is 77.8%. 55.5% of the patients reported a "worst pain" intensity score of 3 or greater, 44.5% reported a "least pain" intensity score of 2 or greater, and 66.7% reported "average pain" intensity score of 2 or greater. 33.3% of the patients were in pain at the time of interview and 22.2% had a current intensity score of 2 or greater. Analysis of pain relief after pain management showed that the percentage of pain relief score of 2 and 3 is 55.6%. The data was expressed as Mean±SE by using descriptive statistics. Statistical significance examined by using paired t-test. Conclusions : It is suggested that "Soyeum" has effects on pain of cancer patients, also expected that "Soyeum" is useful to improve immunoactivity and for cancer patients.

  20. The role of semantic abstractness and perceptual category in processing speech accompanied by gestures

    Arne eNagels

    2013-12-01

    Full Text Available Space and shape are distinct perceptual categories. In language, perceptual information can also be used to describe abstract semantic concepts like a ‘rising income’ (space or a ‘square personality’ (shape. Despite being inherently concrete, co-speech gestures depicting space and shape can accompany concrete or abstract utterances. Here, we investigated the way that abstractness influences the neural processing of the perceptual categories of space and shape in gestures. Thus, we tested the hypothesis that the neural processing of perceptual categories is highly dependent on language context.In a two-factorial design, we investigated the neural basis for the processing of gestures containing shape (SH and spatial information (SP when accompanying concrete (c or abstract (a verbal utterances. During fMRI data acquisition participants were presented with short video clips of the four conditions (cSP, aSP, cSH, aSH while performing an independent control task.Abstract (a as opposed to concrete (c utterances activated temporal lobes bilaterally and the left inferior frontal gyrus (IFG for both shape-related (SH and space-related (SP utterances. An interaction of perceptual category and semantic abstractness in a more anterior part of the left IFG and inferior part of the posterior temporal lobe indicates that abstractness strongly influenced the neural processing of space and shape information. Despite the concrete visual input of co-speech gestures in all conditions, space and shape information is processed differently depending on the semantic abstractness of its linguistic context.

  1. Reduced inflammation accompanies diminished myelin damage and repair in the NG2 null mouse spinal cord

    Kucharova Karolina

    2011-11-01

    Full Text Available Abstract Background Multiple sclerosis (MS is a demyelinating disease in which blood-derived immune cells and activated microglia damage myelin in the central nervous system. While oligodendrocyte progenitor cells (OPCs are essential for generating oligodendrocytes for myelin repair, other cell types also participate in the damage and repair processes. The NG2 proteoglycan is expressed by OPCs, pericytes, and macrophages/microglia. In this report we investigate the effects of NG2 on these cell types during spinal cord demyelination/remyelination. Methods Demyelinated lesions were created by microinjecting 1% lysolecithin into the lumbar spinal cord. Following demyelination, NG2 expression patterns in wild type mice were studied via immunostaining. Immunolabeling was also used in wild type and NG2 null mice to compare the extent of myelin damage, the kinetics of myelin repair, and the respective responses of OPCs, pericytes, and macrophages/microglia. Cell proliferation was quantified by studies of BrdU incorporation, and cytokine expression levels were evaluated using qRT-PCR. Results The initial volume of spinal cord demyelination in wild type mice is twice as large as in NG2 null mice. However, over the ensuing 5 weeks there is a 6-fold improvement in myelination in wild type mice, versus only a 2-fold improvement in NG2 null mice. NG2 ablation also results in reduced numbers of each of the three affected cell types. BrdU incorporation studies reveal that reduced cell proliferation is an important factor underlying NG2-dependent decreases in each of the three key cell populations. In addition, NG2 ablation reduces macrophage/microglial cell migration and shifts cytokine expression from a pro-inflammatory to anti-inflammatory phenotype. Conclusions Loss of NG2 expression leads to decreased proliferation of OPCs, pericytes, and macrophages/microglia, reducing the abundance of all three cell types in demyelinated spinal cord lesions. As a result

  2. GLUL Promotes Cell Proliferation in Breast Cancer.

    Wang, Yanyan; Fan, Shaohua; Lu, Jun; Zhang, Zifeng; Wu, Dongmei; Wu, Zhiyong; Zheng, Yuanlin

    2016-10-28

    Glutamate-ammonia ligase (GLUL) belongs to the glutamine synthetase family. It catalyzes the synthesis of glutamine from glutamate and ammonia in an ATP-dependent reaction. Here, we found higher expression of GLUL in the breast cancer patients was associated with larger tumor size and higher level of HER2 expression. In addition, GLUL was heterogeneously expressed in various breast cancer cells. The mRNA and protein expression levels of GLUL in SK-BR-3 cells were obviously higher than that in the other types of breast cancer cells. Results showed GLUL knockdown in SK-BR-3 cells could significantly decrease the proliferation ability. Furthermore, GLUL knockdown markedly inhibited the p38 MAPK and ERK1/ERK2 signaling pathways in SK-BR-3 cells. Thus, GLUL may represent a novel target for selectively inhibiting p38 MAPK and ERK1/ERK2 signaling pathways and the proliferation potential of breast cancer cells. This article is protected by copyright. All rights reserved.

  3. Efficacy and safety of exogenous melatonin for secondary sleep disorders and sleep disorders accompanying sleep restriction: meta-analysis

    2006-01-01

    Objective To conduct a systematic review of the efficacy and safety of exogenous melatonin in managing secondary sleep disorders and sleep disorders accompanying sleep restriction, such as jet lag and shiftwork disorder.

  4. Reducing the Risk of Damage to Power Transformers of 110 kV and Above Accompanying Internal Short Circuits

    L’vova, M. M. [JSC “R& D Center at Federal Grid Company of the Unified Power System” (Russian Federation); L’vov, S. Yu. [Presselektro LLC (Russian Federation); Komarov, V. B. [IPCE RAS (Russian Federation); Lyut’ko, E. O. [JSC “R& D Center at Federal Grid Company of the Unified Power System” (Russian Federation); Vdoviko, V. P. [EMA Ltd. (Russian Federation); Demchenko, V. V. [JSC “Boguchanskaya HPP” (Russian Federation); Belyaev, S. G. [PKF Konif Ltd. (Russian Federation); Savel’ev, V. A. [Ivanovo State Power University (Russian Federation); L’vov, M. Yu., E-mail: timashova@nte-power.ru; L’vov, Yu. N. [JSC “R& D Center at Federal Grid Company of the Unified Power System” (Russian Federation)

    2015-03-15

    Methods of increasing the operating reliability of power transformers, autotransformers and shunting reactors in order to reduce the risk of damage, which accompany internal short circuits and equipment fires and explosions, are considered.

  5. Proliferation and the Civilian Nuclear Fuel Cycle. Towards a Simplified Recipe to Measure Proliferation Risk

    Brogli, R.; Krakowski, R.A

    2001-08-01

    The primary goal of this study is to frame the problem of nuclear proliferation in the context of protection and risks associated with nuclear materials flowing in the civilian nuclear fuel cycle. The perspective adopted for this study is that of a nuclear utility and the flow of fresh and spent nuclear fuel with which that utility must deal in the course of providing economic, safe, and ecologically acceptable electrical power to the public. Within this framework quantitative approaches to a material-dependent, simplified proliferation-risk metric are identified and explored. The driving force behind this search for such a proliferation metric derives from the need to quantify the proliferation risk in the context of evaluating various commercial nuclear fuel cycle options (e.g., plutonium recycle versus once-through). While the formulation of the algebra needed to describe the desired, simplified metric(s) should be straight forward once a modus operandi is defined, considerable interaction with the user of any final product that results is essential. Additionally, a broad contextual review of the proliferation problem and past efforts in the quantification of associated risks was developed as part of this study. This extensive review was essential to setting perspectives and establishing (feasibility) limits to the search for a proliferation metric(s) that meets the goals of this study. Past analyses of proliferation risks associated with the commercial nuclear fuel cycle have generally been based on a range of decision-analysis, operations-research tools. Within the time and budget constraints, as well as the self-enforced (utility) customer focus, the more subjective and data-intensive decision-analysis methodologies where not pursued. Three simplified, less-subjective approaches were investigated instead: a) a simplified 'four-factor' formula expressing as a normalized product political, material-quantity, material-quality, and material

  6. Effect of a virtual reality exercise program accompanied by cognitive tasks on the balance and gait of stroke patients

    Lee, In-Wook; Kim, Yong-Nam; Lee, Dong-Kyu

    2015-01-01

    [Purpose] This study aimed to assess the effect of a virtual reality exercise program accompanied by cognitive tasks on the balance and gait of stroke patients. [Subjects] Twenty stroke patients were randomly assigned to two groups 10 to an experimental group that performed a virtual reality exercise program accompanied by cognitive tasks and 10 to a control group. The control group performed a proprioceptive neuromuscular facilitation exercise program. Balance was measured with the Berg Bala...

  7. Vimentin expression influences flow dependent VASP phosphorylation and regulates cell migration and proliferation

    Lund, Natalie [University Hospital Luebeck, Medical Department II, Experimental Angiology, Luebeck (Germany); Henrion, Daniel [Universite d' Angers, INSERM U771, CNRS UMR6214, UFR Sciences Mediales, Angers (France); Tiede, Petra [University Hospital Hamburg Eppendorf, Department of Hepatobiliary and Transplant Surgery, Hamburg (Germany); Ziche, Marina [University of Siena, Department of Molecular Biology, Siena (Italy); Schunkert, Heribert [University Hospital Luebeck, Medical Department II, Experimental Angiology, Luebeck (Germany); Ito, Wulf D., E-mail: wulf.ito@kliniken-oa.de [University Hospital Luebeck, Medical Department II, Experimental Angiology, Luebeck (Germany); Cardiovascular Center Oberallgaeu, Academic Teaching Hospital, University of Ulm, Immenstadt (Germany)

    2010-05-07

    The cytoskeleton plays a central role for the integration of biochemical and biomechanical signals across the cell required for complex cellular functions. Recent studies indicate that the intermediate filament vimentin is necessary for endothelial cell morphogenesis e.g. in the context of leukocyte transmigration. Here, we present evidence, that the scaffold provided by vimentin is essential for VASP localization and PKG mediated VASP phosphorylation and thus controls endothelial cell migration and proliferation. Vimentin suppression using siRNA technique significantly decreased migration velocity by 50% (videomicroscopy), diminished transmigration activity by 42.5% (Boyden chamber) and reduced proliferation by 43% (BrdU-incorporation). In confocal microscopy Vimentin colocalized with VASP and PKG in endothelial cells. Vimentin suppression was accompanied with a translocation of VASP from focal contacts to the perinuclear region. VASP/Vimentin and PKG/Vimentin colocalization appeared to be essential for proper PKG mediated VASP phosphorylation because we detected a diminished expression of PKG and p{sup Ser239}-VASP in vimentin-suppressed cells, Furthermore, the induction of VASP phosphorylation in perfused arteries was markedly decreased in vimentin knockout mice compared to wildtypes. A link is proposed between vimentin, VASP phosphorylation and actin dynamics that delivers an explanation for the important role of vimentin in controlling endothelial cell morphogenesis.

  8. Golli myelin basic proteins stimulate oligodendrocyte progenitor cell proliferation and differentiation in remyelinating adult mouse brain.

    Paez, Pablo M; Cheli, Veronica T; Ghiani, Cristina A; Spreuer, Vilma; Handley, Vance W; Campagnoni, Anthony T

    2012-07-01

    Golli myelin basic proteins are necessary for normal myelination, acting via voltage and store-dependent Ca(2+) entry at multiple steps during oligodendrocyte progenitor cell (OPC) development. To date nothing is known regarding the role of golli proteins in demyelination or remyelination events. Here the effects of golli ablation and overexpression in myelin loss and recovery were examined using the cuprizone (CPZ) model of demyelination/remyelination. We found severe demyelination in the corpus callosum (CC) of golli-overexpressing mice (JOE) during the CPZ treatment, which was accompanied by an increased number of reactive astrocytes and activation of microglia/macrophages. During demyelination of JOE brains, a significant increase in the number of proliferating OPCs was found in the CC as well as in the subventricular zone, and our data indicate that these progenitors matured and fully remyelinated the CC of JOE animals after CPZ withdrawal. In contrast, in the absence of golli (golli-KO mice) delayed myelin loss associated with a smaller immune response, and a lower number of OPCs was found in these mice during the CPZ treatment. Furthermore, incomplete remyelination was observed after CPZ removal in large areas of the CC of golli-KO mice, reflecting irregular recovery of the oligodendrocyte population and subsequent myelin sheath formation. Our findings demonstrate that golli proteins sensitize mature oligodendrocytes to CPZ-induced demyelination, while at the same time stimulate the proliferation/recruitment of OPCs during demyelination, resulting in accelerated remyelination.

  9. Antibiotic drug tigecycline inhibited cell proliferation and induced autophagy in gastric cancer cells

    Tang, Chunling; Yang, Liqun; Jiang, Xiaolan [State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716 (China); Xu, Chuan [Division of Scientific Research and Training, General Hospital of PLA Chengdu Military Area Command, Chengdu, Sichuan 610083 (China); Wang, Mei; Wang, Qinrui [State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716 (China); Zhou, Zhansong, E-mail: zhouzhans@sina.com [Institute of Urinary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038 (China); Xiang, Zhonghuai [State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716 (China); Cui, Hongjuan, E-mail: hcui@swu.edu.cn [State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716 (China)

    2014-03-28

    Highlights: • Tigecycline inhibited cell growth and proliferation in human gastric cancer cells. • Tigecycline induced autophagy not apoptosis in human gastric cancer cells. • AMPK/mTOR/p70S6K pathway was activated after tigecycline treatment. • Tigecycline inhibited tumor growth in xenograft model of human gastric cancer cells. - Abstract: Tigecycline acts as a glycylcycline class bacteriostatic agent, and actively resists a series of bacteria, specifically drug fast bacteria. However, accumulating evidence showed that tetracycline and their derivatives such as doxycycline and minocycline have anti-cancer properties, which are out of their broader antimicrobial activity. We found that tigecycline dramatically inhibited gastric cancer cell proliferation and provided an evidence that tigecycline induced autophagy but not apoptosis in human gastric cancer cells. Further experiments demonstrated that AMPK pathway was activated accompanied with the suppression of its downstream targets including mTOR and p70S6K, and ultimately induced cell autophagy and inhibited cell growth. So our data suggested that tigecycline might act as a candidate agent for pre-clinical evaluation in treatment of patients suffering from gastric cancer.

  10. Simvastatin induces cell cycle arrest and inhibits proliferation of bladder cancer cells via PPARγ signalling pathway

    Wang, Gang; Cao, Rui; Wang, Yongzhi; Qian, Guofeng; Dan, Han C.; Jiang, Wei; Ju, Lingao; Wu, Min; Xiao, Yu; Wang, Xinghuan

    2016-01-01

    Simvastatin is currently one of the most common drugs for old patients with hyperlipidemia, hypercholesterolemia and atherosclerotic diseases by reducing cholesterol level and anti-lipid properties. Importantly, simvastatin has also been reported to have anti-tumor effect, but the underlying mechanism is largely unknown. We collected several human bladder samples and performed microarray. Data analysis suggested bladder cancer (BCa) was significantly associated with fatty acid/lipid metabolism via PPAR signalling pathway. We observed simvastatin did not trigger BCa cell apoptosis, but reduced cell proliferation in a dose- and time-dependent manner, accompanied by PPARγ-activation. Moreover, flow cytometry analysis indicated that simvastatin induced cell cycle arrest at G0/G1 phase, suggested by downregulation of CDK4/6 and Cyclin D1. Furthermore, simvastatin suppressed BCa cell metastasis by inhibiting EMT and affecting AKT/GSK3β. More importantly, we found that the cell cycle arrest at G0/G1 phase and the alterations of CDK4/6 and Cyclin D1 triggered by simvastatin could be recovered by PPARγ-antagonist (GW9662), whereas the treatment of PPARα-antagonist (GW6471) shown no significant effects on the BCa cells. Taken together, our study for the first time revealed that simvastatin inhibited bladder cancer cell proliferation and induced cell cycle arrest at G1/G0 phase via PPARγ signalling pathway. PMID:27779188

  11. Increased expression of BDNF and proliferation of dentate granule cells after bacterial meningitis.

    Tauber, Simone C; Stadelmann, Christine; Spreer, Annette; Brück, Wolfgang; Nau, Roland; Gerber, Joachim

    2005-09-01

    Proliferation and differentiation of neural progenitor cells is increased after bacterial meningitis. To identify endogenous factors involved in neurogenesis, expression of brain-derived neurotrophic factor (BDNF), TrkB, nerve growth factor (NGF), and glial cell line-derived neurotrophic factor (GDNF) was investigated. C57BL/6 mice were infected by intracerebral injection of Streptococcus pneumoniae. Mice were killed 30 hours later or treated with ceftriaxone and killed 4 days after infection. Hippocampal BDNF mRNA levels were increased 2.4-fold 4 days after infection (p = 0.026). Similarly, BDNF protein levels in the hippocampal formation were higher in infected mice than in control animals (p = 0.0003). This was accompanied by an elevated proliferation of dentate granule cells (p = 0.0002). BDNF protein was located predominantly in the hippocampal CA3/4 area and the hilus of the dentate gyrus. The density of dentate granule cells expressing the BDNF receptor TrkB as well as mRNA levels of TrkB in the hippocampal formation were increased 4 days after infection (p = 0.027 and 0.0048, respectively). Conversely, NGF mRNA levels at 30 hours after infection were reduced by approximately 50% (p = 0.004). No significant changes in GDNF expression were observed. In conclusion, increased synthesis of BDNF and TrkB suggests a contribution of this neurotrophic factor to neurogenesis after bacterial meningitis.

  12. C/EBPβ regulates transcription factors critical for proliferation and survival of multiple myeloma cells

    Pal, Rekha; Janz, Martin; Galson, Deborah L.; Gries, Margarete; Li, Shirong; Jöhrens, Korinna; Anagnostopoulos, Ioannis; Dörken, Bernd; Mapara, Markus Y.; Borghesi, Lisa; Kardava, Lela; Roodman, G. David; Milcarek, Christine

    2009-01-01

    CCAAT/enhancer-binding protein β (C/EBPβ), also known as nuclear factor–interleukin-6 (NF-IL6), is a transcription factor that plays an important role in the regulation of growth and differentiation of myeloid and lymphoid cells. Mice deficient in C/EBPβ show impaired generation of B lymphocytes. We show that C/EBPβ regulates transcription factors critical for proliferation and survival in multiple myeloma. Multiple myeloma cell lines and primary multiple myeloma cells strongly expressed C/EBPβ, whereas normal B cells and plasma cells had little or no detectable levels of C/EBPβ. Silencing of C/EBPβ led to down-regulation of transcription factors such as IRF4, XBP1, and BLIMP1 accompanied by a strong inhibition of proliferation. Further, silencing of C/EBPβ led to a complete down-regulation of antiapoptotic B-cell lymphoma 2 (BCL2) expression. In chromatin immunoprecipitation assays, C/EBPβ directly bound to the promoter region of IRF4, BLIMP1, and BCL2. Our data indicate that C/EBPβ is involved in the regulatory network of transcription factors that are critical for plasma cell differentiation and survival. Targeting C/EBPβ may provide a novel therapeutic strategy in the treatment of multiple myeloma. PMID:19717648

  13. Running Exercise Alleviates Pain and Promotes Cell Proliferation in a Rat Model of Intervertebral Disc Degeneration

    Shuo Luan

    2015-01-01

    Full Text Available Chronic low back pain accompanied by intervertebral disk degeneration is a common musculoskeletal disorder. Physical exercise, which is clinically recommended by international guidelines, has proven to be effective for degenerative disc disease (DDD patients. However, the mechanism underlying the analgesic effects of physical exercise on DDD remains largely unclear. The results of the present study showed that mechanical withdrawal thresholds of bilateral hindpaw were significantly decreased beginning on day three after intradiscal complete Freund’s adjuvant (CFA injection and daily running exercise remarkably reduced allodynia in the CFA exercise group beginning at day 28 compared to the spontaneous recovery group (controls. The hindpaw withdrawal thresholds of the exercise group returned nearly to baseline at the end of experiment, but severe pain persisted in the control group. Histological examinations performed on day 70 revealed that running exercise restored the degenerative discs and increased the cell densities of the annulus fibrosus (AF and nucleus pulposus (NP. Furthermore, immunofluorescence labeling revealed significantly higher numbers of 5-bromo-2-deoxyuridine (BrdU-positive cells in the exercise group on days 28, 42, 56 and 70, which indicated more rapid proliferation compared to the control at the corresponding time points. Taken together, these results suggest that running exercise might alleviate the mechanical allodynia induced by intradiscal CFA injection via disc repair and cell proliferation, which provides new evidence for future clinical use.

  14. Increased activity of chondroitin sulfate-synthesizing enzymes during proliferation of arterial smooth muscle cells

    Hollmann, J.; Thiel, J.; Schmidt, A.; Buddecke, E.

    1986-12-01

    Cultured arterial smooth muscle cells incorporate (/sup 35/S)sulfate into the extracellular chondroitin sulfate/dermatan sulfate containing proteoglycans at a higher rate in the phase of logarithmic growth than do non-dividing cells. The cell growth-dependent decrease in /sup 35/S incorporation with increasing cell density is accompanied by a decrease in the activity of chondroitin sulfate-synthesizing enzymes. The specific activity of xylosyl transferase, N-acetylgalactosaminyl transferase I and chondroitin sulfotransferase declines as the cells proceed from low to high densities. The corresponding correlation coefficients are 0.86, 0.91 and 0.89. The ratio of C-60H/C-40H sulfation of chondroitin shows a cell proliferation-dependent decrease indicating an inverse correlation of chondroitin 6-sulfotransferase and chondroitin 4-sulfotransferase activity. The observed changes in the expression of enzyme activities are thought to have some implications in the pathogenesis of arteriosclerosis, the initial stages of which are characterized by proliferation of arterial smooth muscle cells.

  15. Detection of Antineutrinos for Non-Proliferation

    Nieto, M M; Teeter, C M; Wilson, W B; Stanbro, W D; Nieto, Michael Martin; Teeter, Corinne M.; Wilson, William B.; Stanbro, William D.

    2003-01-01

    We discuss the feasibility of using the detection of electron antineutrinos produced in fission to monitor the time dependence of the Plutonium content of nuclear power reactors and large (> 1 MWatt) research reactors. If practical such a scheme would allow world-wide, automated monitoring of reactors and, thereby, the detection of proliferation attempts. Although this idea shows some promise, we find that a practical scheme is difficult to envision. We also consider using fission antineutrino spectra to determine and attribute the fuel in an unexploded nuclear device. We find it would not be possible to determine the isotopic content of such a device in this manner. Finally, we examine the possibility of antineutrino detection of an unannounced low-yield (~ 1kton) nuclear explosion. We argue this can be ruled out completely.

  16. Autism overflows: increasing prevalence and proliferating theories.

    Waterhouse, Lynn

    2008-12-01

    This selective review examines the lack of an explanation for the sharply increasing prevalence of autism, and the lack of any synthesis of the proliferating theories of autism. The most controversial and most widely disseminated notion for increasing prevalence is the measles-mumps-rubella/thimerosal vaccine theory. Less controversial causes that have been proposed include changes in autism diagnostic criteria, increasing services for autism, and growing awareness of the disorder. Regardless of its causes, the increasing prevalence of autism has put pressure on the field of autism research to generate productive and predictive theories of autism. However, the heterogeneity of brain deficits, impaired behaviors, and genetic variants in autism have challenged researchers and theorists, and despite 45 years of research, no standard causal synthesis has emerged. Research going forward should assume that autism is an aggregation of myriad independent disorders of impaired sociality, social cognition, communication, and motor and cognitive skills.

  17. Laser isotope separation and proliferation risks

    Fuss, Werner

    2015-02-15

    There is an ongoing discussion on the proliferation danger of laser enrichment of uranium by the Silex process. Here this risk is compared to that of other processes, in particular centrifuges. The two methods need a similar size of the plant for a comparable production rate (in separative work units per year) and the time and costs for their construction do not differ much. This conclusion from published material does not depend on technical details of Silex. But enough details are known to allow for additional conclusions: Whereas the selectivity (enrichment factor) in the Silex process seems higher, the energy consumption is probably larger. Due to the laser's repetition rate being insufficient for the molecular beam, the method has probably a low depletion factor; this is a serious disadvantage for cascading for high enrichment such as for bomb uranium, although it may be acceptable for low enrichment without cascading for reactor purposes.

  18. TAM receptors support neural stem cell survival, proliferation and neuronal differentiation.

    Rui Ji

    Full Text Available Tyro3, Axl and Mertk (TAM receptor tyrosine kinases play multiple functional roles by either providing intrinsic trophic support for cell growth or regulating the expression of target genes that are important in the homeostatic regulation of immune responses. TAM receptors have been shown to regulate adult hippocampal neurogenesis by negatively regulation of glial cell activation in central nervous system (CNS. In the present study, we further demonstrated that all three TAM receptors were expressed by cultured primary neural stem cells (NSCs and played a direct growth trophic role in NSCs proliferation, neuronal differentiation and survival. The cultured primary NSCs lacking TAM receptors exhibited slower growth, reduced proliferation and increased apoptosis as shown by decreased BrdU incorporation and increased TUNEL labeling, than those from the WT NSCs. In addition, the neuronal differentiation and maturation of the mutant NSCs were impeded, as characterized by less neuronal differentiation (β-tubulin III+ and neurite outgrowth than their WT counterparts. To elucidate the underlying mechanism that the TAM receptors play on the differentiating NSCs, we examined the expression profile of neurotrophins and their receptors by real-time qPCR on the total RNAs from hippocampus and primary NSCs; and found that the TKO NSC showed a significant reduction in the expression of both nerve growth factor (NGF and brain-derived neurotrophic factor (BDNF, but accompanied by compensational increases in the expression of the TrkA, TrkB, TrkC and p75 receptors. These results suggest that TAM receptors support NSCs survival, proliferation and differentiation by regulating expression of neurotrophins, especially the NGF.

  19. Sox9 Modulates Proliferation and Expression of Osteogenic Markers of Adipose-Derived Stem Cells (ASC

    Sabine Stöckl

    2013-05-01

    Full Text Available Background: Mesenchymal stem cells (MSC are promising tools for tissue-engineering and musculoskeletal regeneration. They reside within various tissues, like adipose tissue, periosteum, synovia, muscle, dermis, blood and bone marrow, latter being the most common tissue used for MSC isolation. A promising alternative source for MSC is adipose tissue due to better availability and higher yield of MSC in comparison to bone marrow. A drawback is the yet fragmentary knowledge of adipose-derived stem cell (ASC physiology in order to make them a safe tool for in vivo application. Methods/Results: Here, we identified Sox9 as a highly expressed and crucial transcription factor in undifferentiated rat ASC (rASC. In comparison to rat bone marrow-derived stem cells (rBMSC, mRNA and protein levels of Sox9 were significantly higher in rASC. To study the role of Sox9 in detail, we silenced Sox9 with shRNA in rASC and examined proliferation, apoptosis and the expression of osteogenic differentiation markers. Our results clearly point to a difference in the expression profile of osteogenic marker genes between undifferentiated rASC and rBMSC in early passages. Sox9 silencing induced the expression of osteocalcin, Vegfα and Mmp13, and decreased rASC proliferation accompanied with an induction of p21 and cyclin D1 expression and delayed S-phase entry. Conclusions: We suggest a pro-proliferative role for Sox9 in undifferentiated rASC which may explain the higher proliferation rate of rASC compared to rBMSC. Moreover, we propose an osteogenic differentiation delaying role of Sox9 in rASC which suggests that Sox9 expression is needed to maintain rASC in an undifferentiated, proliferative state.

  20. New castanospermine glycoside analogues inhibit breast cancer cell proliferation and induce apoptosis without affecting normal cells.

    Ghada Allan

    Full Text Available sp²-Iminosugar-type castanospermine analogues have been shown to exhibit anti-tumor activity. However, their effects on cell proliferation and apoptosis and the molecular mechanism at play are not fully understood. Here, we investigated the effect of two representatives, namely the pseudo-S- and C-octyl glycoside 2-oxa-3-oxocastanospermine derivatives SO-OCS and CO-OCS, on MCF-7 and MDA-MB-231 breast cancer and MCF-10A mammary normal cell lines. We found that SO-OCS and CO-OCS inhibited breast cancer cell viability in a concentration- and time-dependent manner. This effect is specific to breast cancer cells as both molecules had no impact on normal MCF-10A cell proliferation. Both drugs induced a cell cycle arrest. CO-OCS arrested cell cycle at G1 and G2/M in MCF-7 and MDA-MB-231 cells respectively. In MCF-7 cells, the G1 arrest is associated with a reduction of CDK4 (cyclin-dependent kinase 4, cyclin D1 and cyclin E expression, pRb phosphorylation, and an overexpression of p21(Waf1/Cip1. In MDA-MB-231 cells, CO-OCS reduced CDK1 but not cyclin B1 expression. SO-OCS accumulated cells in G2/M in both cell lines and this blockade was accompanied by a decrease of CDK1, but not cyclin B1 expression. Furthermore, both drugs induced apoptosis as demonstrated by the increased percentage of annexin V positive cells and Bax/Bcl-2 ratio. Interestingly, in normal MCF-10A cells the two drugs failed to modify cell proliferation, cell cycle progression, cyclins, or CDKs expression. These results demonstrate that the effect of CO-OCS and SO-OCS is triggered by both cell cycle arrest and apoptosis, suggesting that these castanospermine analogues may constitute potential anti-cancer agents against breast cancer.

  1. Brain-derived neurotrophic factor deficiency restricts proliferation of oligodendrocyte progenitors following cuprizone-induced demyelination.

    Tsiperson, Vladislav; Huang, Yangyang; Bagayogo, Issa; Song, Yeri; VonDran, Melissa W; DiCicco-Bloom, Emanuel; Dreyfus, Cheryl F

    2015-01-01

    Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family of growth factors that through its neurotrophic tyrosine kinase, receptor, type 2 (TrkB) receptor, increases 5-bromo-2-deoxyuridine incorporation in oligodendrocyte progenitor cells (OPCs) in culture. Roles in vivo are less well understood; however, increases in numbers of OPCs are restricted in BDNF+/- mice following cuprizone-elicited demyelination. Here, we investigate whether these blunted increases in OPCs are associated with changes in proliferation. BDNF+/+ and BDNF+/- mice were fed cuprizone-containing or control feed. To assess effects on OPC numbers, platelet-derived growth factor receptor alpha (PDGFRα)+ or NG2+ cells were counted. To monitor DNA synthesis, 5-ethynyl-2'-deoxyuridine (EdU) was injected intraperitoneally and colocalized with PDGFRα+ cells. Alternatively, proliferating cell nuclear antigen (PCNA) was colocalized with PDGFRα or NG2. Labeling indices were determined in the BDNF+/+ and BDNF+/- animals. After 4 or 5 weeks of control feed, BDNF+/- mice exhibit similar numbers of OPCs compared with BDNF+/+ animals. The labeling indices for EdU and PCNA also were not significantly different, suggesting that neither the DNA synthesis phase (S phase) nor the proliferative pool size was different between genotypes. In contrast, when mice were challenged by cuprizone for 4 or 5 weeks, increases in OPCs observed in BDNF+/+ mice were reduced in the BDNF+/- mice. This difference in elevations in cell number was accompanied by decreases in EdU labeling and PCNA labeling without changes in cell death, indicating a reduction in the DNA synthesis and the proliferative pool. Therefore, levels of BDNF influence the proliferation of OPCs resulting from a demyelinating lesion.

  2. Evaluation of thermal water in patients with functional dyspepsia and irritable bowel syndrome accompanying constipation

    Giovanni Gasbarrini; Marcello Candelli; RiccardoGiuseppe Graziosetto; Sergio Coccheri; Ferdinando Di Iorio; Giuseppe Nappi

    2006-01-01

    AIM: To evaluate the efficacy of water supplementation treatment in patients with functional dyspepsia or irritable bowe syndrome (IBS) accompanying predominant constipation.METHODS: A total of 3 872 patients with functional dyspepsia and 3609 patients with irritable bowel syndrome were enrolled in the study by 18 Italina thermal centres.Patients underwent a first cycle of thermal therapy for 21 d. A year later patients were re-evaluated at the same centre and received another cycle of thermal therapy.A questionnare to collect personal data on social and occupational status, family and pathological case history,life style, clinical records, utilisation of welfare and health structure and devices was administered to each patient at basal time and one year after each thermal treatment.Sixty patients with functional dyspepsia and 20 with IBS and 80 healthy controls received an evaluation of gastric output and oro-cecal transit time by breath test analysis.Breath test was performed at basal time and after water supplementaton therapies. Gastrointestinal symptoms were evaluated at the same time points. Breath samples were analyzed with a mass spectometer and a gascromatograph. Results were expressed as T1/2 and T-lag for octanoic acid breath test and as oro-cecal transit time for lactulose breath test.RESULTS: A significant reduction of prevalence of symptoms was observed at the end of the first and second cycles of thermal therapy in dyspeptic and IBS patients.The analysis of variance showed a real and persistant improvement of symptoms in all patients. After water supplementation for 3 wk a reduction of gastric output was observed in 49 (87.5%) of 56 dyspeptic patients.Both T1/2 and T-lag were significantly reduced after the therapy compared to basal values [91± 12 (T1/2) and 53 ± 11 (T-lag), Tables 1 and 2] with results of octanoic acid breath test similar to healthy subjects. After water supplementation for 3 wk oro-cecal transit time was shorter than that at the

  3. Initial phases of explosion earthquakes accompanying Vulcanian eruptions at Lokon-Empung volcano, Indonesia

    Yamada, Taishi; Aoyama, Hiroshi; Nishimura, Takeshi; Yakiwara, Hiroshi; Nakamichi, Haruhisa; Oikawa, Jun; Iguchi, Masato; Hendrasto, Muhamad; Suparman, Yasa

    2016-11-01

    We examine the initial phases of explosion earthquakes accompanying Vulcanian eruptions at Lokon-Empung volcano in Indonesia to reveal the triggering process of explosive eruptions. In 2012-2013, 56 Vulcanian eruptions at Lokon-Empung were observed by our temporary observation network being comprised of four broadband seismometers and two infrasound microphones at 1.6-6.8 km from the active vent. The seismic records of each explosion earthquake share almost the same waveform characteristics of initial phases, consisting of a small compressional onset (P phase) and a subsequent large dilatational phase (D phase). Particle orbits of both phases show straight motion from beneath the active vent, which suggests that these phases are composed of a longitudinal body wave. For each explosion, the origin times of the P phase precedes 0.8-2.5 s before the occurrence of an explosion at the vent that are detected by infrasound data. Since the signal-to-noise ratio of the P phase is insufficient for a quantitative analysis, we analyze the D phase dominating the initial phases. Our analysis for the signals of 0.2-1.0 Hz shows the D phase are well explained by a cylindrical contraction source with a half-cosine shaped time function located at 1.0-1.3 km depth beneath the active vent. We also recognize that some explosions are followed by a prominent tremor that coincides with continuous ash emission (ET). The seismic amplitudes and intensity of the D phase of events in ET are larger than the explosions without accompanying tremor (EX). The frequency distribution of the time interval from the previous eruption is also different in the events in ET and EX. The implosion source in the initial phases of explosion earthquakes at several km beneath the active vent has been reported at Sakurajima volcano. Since our result shows considerable agreement with the previous works at Sakurajima, both Lokon-Empung and Sakurajima may share similar initial processes of Vulcanian eruptions.

  4. Modeling hormonal control of cambium proliferation

    Oles, Vladyslav; Panchenko, Alexander

    2017-01-01

    Rise of atmospheric CO2 is one of the main causes of global warming. Catastrophic climate change can be avoided by reducing emissions and increasing sequestration of CO2. Trees are known to sequester CO2 during photosynthesis, and then store it as wood biomass. Thus, breeding of trees with higher wood yield would mitigate global warming as well as augment production of renewable construction materials, energy, and industrial feedstock. Wood is made of cellulose-rich xylem cells produced through proliferation of a specialized stem cell niche called cambium. Importance of cambium in xylem cells production makes it an ideal target for the tree breeding programs; however our knowledge about control of cambium proliferation remains limited. The morphology and regulation of cambium are different from those of stem cell niches that control axial growth. For this reason, translating the knowledge about axial growth to radial growth has limited use. Furthermore, genetic approaches cannot be easily applied because overlaying tissues conceal cambium from direct observation and complicate identification of mutants. To overcome the paucity of experimental tools in cambium biology, we constructed a Boolean network CARENET (CAmbium REgulation gene NETwork) for modelling cambium activity, which includes the key transcription factors WOX4 and HD-ZIP III as well as their potential regulators. Our simulations predict that: (1) auxin, cytokinin, gibberellin, and brassinosteroids act cooperatively in promoting transcription of WOX4 and HD-ZIP III; (2) auxin and cytokinin pathways negatively regulate each other; (3) hormonal pathways act redundantly in sustaining cambium activity; (4) individual cambium cells can have diverse molecular identities. CARENET can be extended to include components of other signalling pathways and be integrated with models of xylem and phloem differentiation. Such extended models would facilitate breeding trees with higher wood yield. PMID:28187161

  5. Effect of epidermal growth factor on follicle-stimulating hormone-induced proliferation of granulosa cells from chicken prehierarchical follicles

    Jin-xing LIN; Yu-dong JIA; Cai-qiao ZHANG

    2011-01-01

    The development of ovarian follicular cells is controlled by multiple circulating and local hormones and factors,including follicle-stimulating hormone (FSH) and epidermal growth factor (EGF).In this study,the stagespecific effect of EGF on FSH-induced proliferation of granulosa cells was evaluated in the ovarian follicles of egg-laying chickens.Results showed that EGF and its receptor (EGFR) mRNAs displayed a high expression in granulosa cells from the prehierarchical follicles,including the large white follicle (LWF) and small yellow follicle (SYF),and thereafter the expression decreased markedly to the stage of the largest preovulatory follicle.SYF represents a turning point of EGF/EGFR mRNA expression during follicle selection.Subsequently the granulosa cells from SYF were cultured to reveal the mediation of EGF in FSH action.Cell proliferation was remarkably increased by treatment with either EGF or FSH (0.1-100 ng/ml).This result was confirmed by elevated proliferating cell nuclear antigen (PCNA) expression and decreased cell apoptosis.Furthermore,EGF-induced cell proliferation was accompanied by increased mRNA expressions of EGFR,FSH receptor,and the cell cycle-regulating genes (cyclins D1 and E1,cyclin-dependent kinases 2 and 6) as well as decreased expression of luteinizing hormone receptor mRNA.However,the EGF or FSH-elicited effect was reversed by simultaneous treatment with an EGFR inhibitor AG1478.In conclusion,EGF and EGFR expressions manifested stage-specific changes during follicular development and EGF mediated FSH-induced cell proliferation and retarded cell differentiation in the prehierarchical follicles.These expressions thus stimulated follicular growth before selection in the egg-laying chicken.

  6. Stimulation of α1a adrenergic receptors induces cellular proliferation or antiproliferative hypertrophy dependent solely on agonist concentration.

    Beilei Lei

    Full Text Available Stimulation of α1aAdrenergic Receptors (ARs is known to have anti-proliferative and hypertrophic effects; however, some studies also suggests this receptor can increase cell proliferation. Surprisingly, we find the α1aAR expressed in rat-1 fibroblasts can produce either phenotype, depending exclusively on agonist concentration. Stimulation of the α1aAR by high dose phenylephrine (>10(-7 M induces an antiproliferative, hypertrophic response accompanied by robust and extended p38 activation. Inhibition of p38 with SB203580 prevented the antiproliferative response, while inhibition of Erk or Jnk had no effect. In stark contrast, stimulation of the α1aAR with low dose phenylephrine (∼10(-8 M induced an Erk-dependent increase in cellular proliferation. Agonist-induced Erk phosphorylation was preceded by rapid FGFR and EGFR transactivation; however, only EGFR inhibition blocked Erk activation and proliferation. The general matrix metalloprotease inhibitor, GM6001, blocked agonist induced Erk activation within seconds, strongly suggesting EGFR activation involved extracellular triple membrane pass signaling. Erk activation required little Ca(2+ release and was blocked by PLCβ or PKC inhibition but not by intracellular Ca(2+ chelation, suggesting Ca(2+ independent activation of novel PKC isoforms. In contrast, Ca(2+ release was essential for PI3K/Akt activation, which was acutely maximal at non-proliferative doses of agonist. Remarkably, our data suggests EGFR transactivation leading to Erk induced proliferation has the lowest activation threshold of any α1aAR response. The ability of α1aARs to induce proliferation are discussed in light of evidence suggesting antagonistic growth responses reflect native α1aAR function.

  7. Gentoxizität durch hormonell stimulierte Proliferation

    Semmel, Britta Birgit

    2006-01-01

    Hormone spielen bei der Kanzerogenese eine wichtige Rolle, indem sie vor allem auf die Phase der Promotion einwirken und die Proliferation bereits initiierter Zellen steigern können. In dieser Arbeit wurden humane Ovarialkarzinomzellen mit Östrogen, Insulin, IGF und EGF zur Proliferation angeregt, woraus eine erhöhte Mikrokernrate resultierte. Mikrokerne sind chromatinhaltige Strukturen, die außerhalb des Zellkerns liegen. Somit lag nahe, dass durch die Steigerung der Proliferation eine genet...

  8. Inhibitory Effect of Cantharidin on Proliferation of A549 Cells

    WANG Xiao-hua; YIN Yuan-qin; SUI Cheng-guang; MENG Fan-dong; MA Ping; JIANG You-hong

    2007-01-01

    Objective: To study the inhibition of Cantharidin against the proliferation of human lung cancer A549 cells and its mechanism. Methods: MTT assay was employed to determine the inhibition of Cantharidin against proliferation of A549 cells and flow Cytometry was applied to analyze A549 cell cycle and the effect of Cantharidin on cell cycle. Results: Cantharidin showed inhibition against the proliferation of A549 cells, and the inhibition was mediated by blocking A549 cell cycle at G2/M phase significantly. Conclusion: Cantharidin exhibits inhibition against the proliferation of human lung cancer A549 cells.

  9. Analysis of Proliferation Resistance of Nuclear Fuel Cycle Systems

    Chang, Hong Lae; Ko, Won Il; Kim, Ho Dong

    2009-11-15

    Proliferation resistance (PR) has been evaluated for the five nuclear fuel cycle systems, potentially deployable in Korea in the future, using the fourteen proliferation resistance attributes suggested in the TOPS report. Unidimensional Utility Theory (UUT) was used in the calculation of utility value for each of the fourteen proliferation resistance attributes, and Multi-Attribute Utility Theory (MAUT), a decision tool with multiple objectives, was used in the evaluation of the proliferation resistance of each nuclear fuel cycle system. Analytic Hierarchy Process (AHP) and Expert Elicitation (EE) were utilized in the derivation of weighting factors for the fourteen proliferation resistance attributes. Among the five nuclear fuel cycle systems evaluated, the once-through fuel cycle system showed the highest level of proliferation resistance, and Pyroprocessing-SFR fuel cycle system showed the similar level of proliferation resistance with the DUPIC fuel cycle system, which has two time higher level of proliferation resistance compared to that of the thermal MOX fuel cycle system. Sensitivity analysis was also carried out to make up for the uncertainty associated with the derivation of weighting factors for the fourteen proliferation resistance attributes.

  10. Glutamine enhances glucose-induced mesangial cell proliferation.

    Lagranha, Claudia J; Doi, Sonia Q; Pithon-Curi, Tania C; Curi, Rui; Sellitti, Donald F

    2008-05-01

    The proliferation of mesangial cells (MC) in the presence of glutamine (0-20 mM) was determined in both low (5 mM) and high (25 mM) glucose-containing medium. Glutamine in a high glucose (HG) environment increased cell proliferation in a dose-dependent manner. Inhibition of glutamine:fructose 6-phosphate amidotransferase (GFAT) and of phosphodiesterase significantly reduced glutamine-induced proliferation. Supraphysiologic levels of glutamine increase MC proliferation in a HG milieu via GFAT and cAMP-dependent pathways, suggesting that glutamine could pose a risk for diabetic nephropathy.

  11. LTP is accompanied by an enhanced local excitability of pyramidal neuron dendrites.

    Frick, Andreas; Magee, Jeffrey; Johnston, Daniel

    2004-02-01

    The propagation and integration of signals in the dendrites of pyramidal neurons is regulated, in part, by the distribution and biophysical properties of voltage-gated ion channels. It is thus possible that any modification of these channels in a specific part of the dendritic tree might locally alter these signaling processes. Using dendritic and somatic whole-cell recordings, combined with calcium imaging in rat hippocampal slices, we found that the induction of long-term potentiation (LTP) was accompanied by a local increase in dendritic excitability that was dependent on the activation of NMDA receptors. These changes favored the back-propagation of action potentials into this dendritic region with a subsequent boost in the Ca(2+) influx. Dendritic cell-attached patch recordings revealed a hyperpolarized shift in the inactivation curve of transient, A-type K(+) currents that can account for the enhanced excitability. These results suggest an important mechanism associated with LTP for shaping signal processing and controlling dendritic function.

  12. A fatal case of severe serotonin syndrome accompanied by moclobemide and paroxetine overdose

    Sener Serkan

    2005-01-01

    Full Text Available Aim: To present a fatal case of serotonin syndrome accompanied by moclobemide and paroxetine overdose. Case presentation: A 34-year-old married woman was presented following intentional ingestion of 3.5 g moclobemide and 2.6 g paroxetine. She was drowsy, agitated, and having rigor. In 1 h she developed myoclonus and diffuse muscle rigidity prominent in lower extremities. All laboratory tests were unremarkable except hyperglycemia (160 mg/dl, sinus tachycardia (103/min, and metabolic acidosis (7.051 pH, 52 mmHg pO2, 74.7 mmHg pCO2, 15% HCO3, 77% SaO2. Despite oxygen supplementation, her respiratory acidosis got worse and the SaO2 concentration decreased to 72%. Endotracheal intubation and paralysis were decided to control muscle hyperactivity followed by hyperthermia (max. 42.3°C unresponsive to benzodiazepine. Even aggressive supportive treatment (mechanical ventilation, buffer replacement, cyproheptadine, and dantrolene were applied, the patient could not recover and suffered cardiopulmonary arrest 20 h after presentation. Conclusion: Physicians working in the emergency departments and intensive care units, managing patients presenting with acute ingestion of selective serotonin reuptake inhibitors combined with monoamine oxidase inhibitors, should be aware of recognizing and treating serotonin stndrome. This is because many of these patients may require intensive care monitoring as well as tracheal intubation and ventilatory support.

  13. Training shortens search times in children with visual impairment accompanied by nystagmus

    Bianca eHuurneman

    2014-09-01

    Full Text Available Perceptual learning (PL can improve near visual acuity in 4-9 year old children with visual impairment. However, the mechanisms underlying improved near visual acuity are unknown. The present study compares feature search and oculomotor measures in 4-9 year old children with visual impairment accompanied by nystagmus (VI+nys [n=33] and children with normal vision (NV [n=29]. Children in the VI+nys group were divided into three training groups: an experimental PL group, a control PL group, and a magnifier group. They were seen before (baseline and after six weeks of training. Children with NV were only seen at baseline. The feature search task entailed finding a target E among distractor E’s (pointing right with element spacing varied in four steps: 0.04°, 0.5°, 1°, and 2°. At baseline, children with VI+nys showed longer search times, shorter fixation durations, and larger saccade amplitudes than children with NV. After training, all training groups showed shorter search times. Only the experimental PL group showed prolonged fixation duration after training at 0.5° and 2° spacing, p’s respectively .033 and .021. Prolonged fixation duration was associated with reduced crowding and improved crowded near visual acuity. One of the mechanisms underlying improved crowded near visual acuity after PL in children with VI+nys seems to be prolonged fixation duration.

  14. Chaos in oscillatory heat evolution accompanying the sorption of hydrogen and deuterium in palladium

    Lalik, Erwin

    2012-01-01

    Aperiodic oscillations in the sorption of H2 or D2 in metallic Pd powder have been observed, and a novel method to confirm their deterministic rather than random character has been devised. A theorem relating the square of a function, with the derivative and integral with variable upper limit of the same function has been proved and proposed to be used as a base for a chaos-vs-random test. Both the experimental and the computed time series may be tested to detect determinism. The result is a single number within the interval [0,2]. The test is designed in such a way that its result is close to zero for the datasets that are deterministic and smooth, and close to 2 for the datasets that are non deterministic (random) or non smooth (discrete). A large variety of the test results has been obtained for the calorimetric time series recorded in thermokinetic oscillations, periodic and quasiperiodic, accompanying the sorption of H2 or D2 with Pd as well as for several non oscillatory calorimetric curves recorded in ...

  15. Presentation of new tectonic map (and accompanying sections) of Trinidad and Tobago

    Persad, K.M.

    1984-04-01

    The Geologic Map of Trinidad, compiled by H.G. Kugler and published in 1961, is currently out of print. While it is the most widely available geologic map, it is confined to onshore Trinidad. This map remains an important reference source, but there have been significant increases in our knowledge of Trindad and Tobago geology since its publication. In particular, there has been: (1) considerable geophysical work, on land and offshore, including 20,000 km (12,400 mi) of seismic lines; (2) approximately 1000 exploration and development wells drilled, including wells in the previously unexplored north and east coast of Trinidad; and (3) significant advances in our understanding of the tectonic evolution of the area, which has resulted largely from the development of the plate tectonic theory. The following items, which take into account many of these new data and concepts, have been compiled. (1) A geologic tectonic map of the entire territory of Trinidad and Tobago, at a scale of 1:200,000. Apart from the surface geology of the land areas, this map shows the major faults and their displacements and locations, total depths and status of exploration wells, and the positions of major petroleum fields. (2) Five accompanying geologic sections at the same scale. (3) A new stratigraphic correlation chart. These new compilations attempt to fill the gap in the published literature on the petroleum geology of Trinidad and Tobago.

  16. Application of near-infrared spectroscopy to measurement of hemodynamic signals accompanying stimulated saliva secretion.

    Sato, Hiroki; Obata, Akiko N; Moda, Ichiro; Ozaki, Kazutaka; Yasuhara, Takaomi; Yamamoto, Yukari; Kiguchi, Masashi; Maki, Atsushi; Kubota, Kisou; Koizumi, Hideaki

    2011-04-01

    We aim to test the feasibility of using near-infrared spectroscopy (NIRS) for indirect measurement of human saliva secretion in response to taste stimuli for potential application to organoleptic testing. We use an NIRS system to measure extracranial hemodynamics (Hb-signals around the temples) of healthy participants when taste stimuli are taken in their mouths. First, the Hb-signals and volume of expelled saliva (stimulated by distilled-water or sucrose-solution intake) are simultaneously measured and large Hb-signal changes in response to the taste stimuli (Hb-responses) are found. Statistical analysis show that both the Hb response and saliva volume are larger for the sucrose solution than for the distilled water with a significant correlation between them (r = 0.81). The effects of swallowing on the Hb-signals are investigated. Similar Hb responses, differing from the sucrose solution and distilled water, are obtained even though the participants swallow the mouth contents. Finally, functional magnetic resonance imaging is used to identify possible sources of the Hb signals corresponding to salivation. Statistical analysis indicates similar responses in the extracranial regions, mainly around the middle meningeal artery. In conclusion, the identified correlation between extracranial hemodynamics and the saliva volume suggests that NIRS is applicable to the measurement of hemodynamic signals accompanying stimulated saliva secretion.

  17. Neuromagnetic fields accompanying unilateral and bilateral voluntary movements: topography and analysis of cortical sources.

    Kristeva, R; Cheyne, D; Deecke, L

    1991-08-01

    Movement-related magnetic fields (MRMFs) accompanying left and right unilateral and bilateral finger flexions were studied in 6 right-handed subjects. Six different MRMF components occurring prior to, and during both unilateral and bilateral movements are described: a slow pre-movement readiness field (RF, 1-0.5 sec prior to movement onset); a motor field (MF) starting shortly before EMG onset; 3 separate "movement-evoked" fields following EMG onset (MEFI at 100 msec; MEFII at 225 msec; and MEFIII at 320 msec); and a "post-movement" field (PMF) following the movement itself. The bilateral topography of the RF and MF for both unilateral and bilateral movements suggested bilateral generators for both conditions. Least-squares fitting of equivalent current dipole sources also indicated bilateral sources for MF prior to both unilateral and bilateral movements with significantly greater strength of contralateral sources in the case of unilateral movements. Differences in pre-movement field patterns for left versus right unilateral movements indicated possible cerebral dominance effects as well. A single current dipole in the contralateral sensorimotor cortex could account for the MEFI for unilateral movements and bilateral sensorimotor sources for bilateral movements. Other MRMF components following EMG onset indicated similar sources in sensorimotor cortex related to sensory feedback or internal monitoring of the movement. The results are discussed with respect to the possible generators active in sensorimotor cortex during unilateral and bilateral movement preparation and execution and their significance for the study of cortical organization of voluntary movement.

  18. Anomaly in neural phase coherence accompanies reduced sensorimotor integration in adults who stutter.

    Sengupta, Ranit; Shah, Shalin; Gore, Katie; Loucks, Torrey; Nasir, Sazzad M

    2016-12-01

    Despite advances in our understanding of the human speech system, the neurophysiological basis of stuttering remains largely unknown. Here, it is hypothesized that the speech of adults who stutter (AWS) is susceptible to disruptions in sensorimotor integration caused by neural miscommunication within the speech motor system. Human speech unfolds over rapid timescales and relies on a distributed system of brain regions working in a parallel and synchronized manner, and a breakdown in neural communication between the putative brain regions could increase susceptibility to dysfluency. Using a speech motor adaptation paradigm under altered auditory feedback with simultaneous recording of EEG, the oscillatory cortical dynamics was investigated in stuttering and fluent adults (FA). Auditory feedback perturbation involved the shifting of the formant frequencies of the target vowel sound. Reduced adaptation in response to the feedback error was observed in AWS and was accompanied by differences in EEG spectral powers and anomalies in phase coherence evolving over the course of speech motor training. It is understood that phase coherence possibly captures neural communication within speech motor networks. Thus, the phase coherence network of the two groups exhibited differences involving the EEG frequency bands. These findings in anomalous neural synchrony provide novel evidence for compromised neuronal communication at short time scales within the speech motor network of AWS.

  19. Spin-flop transition accompanied with changing the type of magnetic ordering

    Syromyatnikov, A. V.

    2017-03-01

    We discuss theoretically rather rear example of spin-flop transition which is accompanied with changing the type of magnetic ordering and which seemingly has not been addressed yet. We demonstrate that changing the type of magnetic ordering can manifest itself in antiferromagnetic (AF) resonance experiments as an apparent peculiar switching of the anisotropy at the transition from the easy-axis type to the easy-plane one. We argue that this kind of spin-flop transition is observed recently by Povarov et al. (2013) [12] in Cu(pz)2(ClO4)2 (where pz denotes pyrazine), one of the best realizations of spin-1/2 Heisenberg AFs on square lattice having a very small anisotropy. We show that the magnetic ordering changes at the spin-flop transition in this material in the direction perpendicular to AF square planes. We examine the microscopic mechanism of such behavior in Cu(pz)2(ClO4)2 and find that dipolar forces and extremely small exchange coupling between spins from neighboring planes are responsible for it.

  20. GRB off-axis afterglows and the emission from the accompanying supernovae

    Kathirgamaraju, Adithan; Giannios, Dimitrios

    2016-01-01

    Gamma-Ray Burst (GRB) afterglows are likely produced in the shock that is driven as the GRB jet interacts with the external medium. Long duration GRBs are also associated with powerful supernovae (SN). We consider the optical and radio afterglows of long GRBs for both blasts viewed along the jet axis ("on-axis" afterglows) and misaligned observes ("off-axis" afterglows). Comparing the optical emission from the afterglow with that of the accompanying SN, using SN 1998bw as an archetype, we find that only a few percent of afterglows viewed off-axis are brighter than the SN. For observable optical off-axis afterglows the viewing angle is at most twice the half-opening angle of the GRB jet. Radio off-axis afterglows should be detected with upcoming radio surveys within a few hundred Mpc. We propose that these surveys will act as "radio triggers," and that dedicated radio facilities should follow-up these sources. Follow-ups can unveil the presence of the radio supernova remnant, if present. In addition, they can ...

  1. GRB off-axis afterglows and the emission from the accompanying supernovae

    Kathirgamaraju, Adithan; Barniol Duran, Rodolfo; Giannios, Dimitrios

    2016-09-01

    Gamma-ray burst (GRB) afterglows are likely produced in the shock that is driven as the GRB jet interacts with the external medium. Long-duration GRBs are also associated with powerful supernovae (SNe). We consider the optical and radio afterglows of long GRBs for both blasts viewed along the jet axis (`on-axis' afterglows) and misaligned observes (`off-axis' afterglows). Comparing the optical emission from the afterglow with that of the accompanying SN, using SN 1998bw as an archetype, we find that only a few per cent of afterglows viewed off-axis are brighter than the SN. For observable optical off-axis afterglows, the viewing angle is at most twice the half-opening angle of the GRB jet. Radio off-axis afterglows should be detected with upcoming radio surveys within a few hundred Mpc. We propose that these surveys will act as `radio triggers', and that dedicated radio facilities should follow-up these sources. Follow-ups can unveil the presence of the radio SN remnant, if present. In addition, they can probe the presence of a mildly relativistic component, either associated with the GRB jet or the SN ejecta, expected in these sources.

  2. Long-term salinity tolerance is accompanied by major restructuring of the coral bacterial microbiome.

    Röthig, Till; Ochsenkühn, Michael A; Roik, Anna; van der Merwe, Riaan; Voolstra, Christian R

    2016-03-01

    Scleractinian corals are assumed to be stenohaline osmoconformers, although they are frequently subjected to variations in seawater salinity due to precipitation, freshwater run-off and other processes. Observed responses to altered salinity levels include differences in photosynthetic performance, respiration and increased bleaching and mortality of the coral host and its algal symbiont, but a study looking at bacterial community changes is lacking. Here, we exposed the coral Fungia granulosa to strongly increased salinity levels in short- and long-term experiments to disentangle temporal and compartment effects of the coral holobiont (i.e. coral host, symbiotic algae and associated bacteria). Our results show a significant reduction in calcification and photosynthesis, but a stable microbiome after short-term exposure to high-salinity levels. By comparison, long-term exposure yielded unchanged photosynthesis levels and visually healthy coral colonies indicating long-term acclimation to high-salinity levels that were accompanied by a major coral microbiome restructuring. Importantly, a bacterium in the family Rhodobacteraceae was succeeded by Pseudomonas veronii as the numerically most abundant taxon. Further, taxonomy-based functional profiling indicates a shift in the bacterial community towards increased osmolyte production, sulphur oxidation and nitrogen fixation. Our study highlights that bacterial community composition in corals can change within days to weeks under altered environmental conditions, where shifts in the microbiome may enable adjustment of the coral to a more advantageous holobiont composition.

  3. Mass changes accompanying the pseudocapacitance of hydrous RuO{sub 2} under different experimental conditions

    Sopcic, Suzana; Rokovic, Marijana Kraljic [Faculty of Chemical Engineering and Technology, Department of Electrochemistry, University of Zagreb, Marulicev trg 19, HR-10000 Zagreb (Croatia); Mandic, Zoran, E-mail: zmandic@fkit.h [Faculty of Chemical Engineering and Technology, Department of Electrochemistry, University of Zagreb, Marulicev trg 19, HR-10000 Zagreb (Croatia); Roka, Andras [Department of Physical Chemistry, Eoetvoes Lorand University, Pazmany Peter setany 1/A, H-1117 Budapest (Hungary); Inzelt, Gyoergy, E-mail: inzeltgy@chem.elte.h [Department of Physical Chemistry, Eoetvoes Lorand University, Pazmany Peter setany 1/A, H-1117 Budapest (Hungary)

    2011-04-01

    Pseudocapacitance reaction of hydrous ruthenium oxide was investigated by cyclic voltammetry combined with electrochemical quartz-crystal nanobalance (EQCN) in sulfuric acid as well as in neutral solutions of Na{sub 2}SO{sub 4} and K{sub 2}SO{sub 4}. The ruthenium oxide electrode was prepared by attaching the ruthenium oxide particles on gold covered quartz electrode. The results show that there are different types of charge taking place simultaneously during the redox reaction of ruthenium oxide electrode. Their contribution to the overall charge depends on the experimental conditions. Depending on the potential and electrolyte used the redox reaction of ruthenium oxide is accompanied either by mass loss or by mass gain. The average molar masses of the species exchanged between the solid phase and the electrolyte solution depend on the potential and scan rate. The effect of Nafion{sup TM} top layer was also investigated. It has been found that it does not affect significantly the overall specific capacitance of ruthenium oxide electrode but the apparent molar masses of exchanged species decrease in comparison with the uncovered electrodes.

  4. Autophagy Accompanied with Bisdemethoxycurcumin-induced Apoptosis in Non-small Cell Lung Cancer Cells

    XU Jin Hong; YANG He Ping; ZHOU Xiang Dong; WANG Hai Jing; GONG Liang; TANG Chun Lan

    2015-01-01

    Objective To investigate the effects of bisdemethoxycurcumin (BDMC) on non-small cell lung cancer (NSCLC) cell line, A549, and the highly metastatic lung cancer 95D cells. Methods CCK-8 assay was used to assess the effect of BDMC on cytotoxicity. Flow cytometry was used to evaluate apoptosis. Western blot analysis, electron microscopy, and quantification of GFP-LC3 punctuates were used to test the effect of BDMC on autophagy and apoptosis of lung cancer cells. Results BDMC inhibited the viability of NSCLC cells, but had no cytotoxic effects on lung small airway epithelial cells (SAECs). The apoptotic cell death induced by BDMC was accompanied with the induction of autophagy in NSCLC cells. Blockage of autophagy by the autophagy inhibitor 3-methyladenine (3-MA) repressed the growth inhibitory effects and induction of apoptosis by BDMC. In addition, BDMC treatment significantly decreased smoothened (SMO) and the transcription factor glioma-associated oncogene 1 (Gli1) expression. Furthermore, depletion of Gli1 by siRNA and cyclopamine (a specific SMO inhibitor) induced autophagy. Conclusion Aberrant activation of Hedgehog (Hh) signaling has been implicated in several human cancers, including lung cancers. The present findings provide direct evidence that BDMC-induced autophagy plays a pro-death role in NSCLC, in part, by inhibiting Hedgehog signaling.

  5. Frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele: case report

    Akkuzu Guzin

    2006-04-01

    Full Text Available Abstract Background Mucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common. Case presentation A case of a frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele is reported. A 77 year old female patient suffering from left sided proptosis and pain around the left eye was admitted to our department. She had a history of left frontal sinus mucocele one year ago that was offered an osteoplastic frontal sinus surgery that the patient refused. Patient had limitation of eye movements. Fundoscopic examination revealed a minimal papilledema. Coronal computerized tomography and orbital magnetic resonance imaging showed a frontal mucocele with suspicious erosion of the orbital roof and a superiorly localized extraconal mass displacing the orbit lateroinferiorly. Frontal and orbital masses had similar intensities. Thus surgery was planned for a fronto-orbital mucocele. During surgery no defect was found on the orbital roof. Frontal mucocele and orbital cystic mass was removed separately. Pathological examination showed a frontal mucocele and an orbital abscess wall. Postoperatively eye movements returned to normal and papilledema resolved. Conclusion Fronto-orbital mucoceles are commonly encountered pathologies, but frontal mucocele with an orbital abscess is a rarely seen and should be kept in mind because their treatments differ.

  6. Values of Seven Tumor Markers in Identiifcation and Diagnosis of Esophageal Carcinoma Accompanied by Neuroendocrine Differentiation

    LIU Lian-ke; SHAO Ming-wen; MA Lan; SUN Jing; GUAN Dan; SHU Yongqian

    2015-01-01

    Objective:To explore the values of seven tumor markers in the identiifcation and diagnosis of esophageal carcinoma accompanied by neuroendocrine differentiation (E-NED). Methods:A total of 378 patients diagnosed as low differentiation of esophageal carcinoma in The First Affiliated Hospital with Nanjing Medical University from Jan., 2008 to Dec., 2013 were selected, in which there were 349 with esophageal carcinoma with no neuroendocrine differentiation (E-NNED, E-NNED group) and 29 with E-NED (E-NED group). The levels of seven tumor markers including synaptophysin (Syn), Chromogranin A (CgA), neuron-specific enolase (NSE), neural cell adhesion molecule (CD56), protein gene product 9.5 (PGP9.5), secretagogue (SCGN) and thyroid transcription factor-1 (TTF-1) of both groups were detected with histoimmunochemical method and the influences of the single and combined detection of above indexes on E-NED patients were analyzed. Results:Except TTF-1, expressions of Syn, CgA, NSE, CD56, PGP9.5 and SCGN in E-NED group were evidently higher than those in E-NNED group and the differences were significant (P Conclusion:PGP9.5 and SCGN can be used as neuroendocrine markers for the pathological diagnosis of E-NED and Syn + CD56, Syn + PGP9.5 and Syn + SCGN can all be used as combined detection.

  7. Rapid magmatic processes accompany arc-continent collision: the Western Bismarck arc, Papua New Guinea

    Cunningham, Heather; Gill, Jim; Turner, Simon; Caulfield, John; Edwards, Louise; Day, Simon

    2012-11-01

    New U-Th-Ra, major and trace element, and Sr-Nd-Pb isotope data are presented for young lavas from the New Britain and Western Bismarck arcs in Papua New Guinea. New Britain is an oceanic arc, whereas the latter is the site of an arc-continent collision. Building on a recent study of the Manus Basin, contrasts between the two arcs are used to evaluate the processes and timescales of magma generation accompanying arc-continent collision and possible slab detachment. All three suites share many attributes characteristic of arc lavas that can be ascribed to the addition of a regionally uniform subduction component derived from the subducting altered oceanic crust and sediment followed by dynamic melting of the modified mantle. However, the Western Bismarck arc lavas diverge from the Pb isotope mixing array formed by the New Britain and the Manus Basin lavas toward elevated 208Pb/204Pb. We interpret this to reflect a second and subsequent addition of sediment melt at crustal depth during collision. 238U and 226Ra excesses are preserved in all of the lavas and are greatest in the Western Bismarck arc. High-Mg andesites with high Sr/Y ratios in the westernmost arc are attributed to recent shallow mantle flux melting at the slab edge. Data for two historical rhyolites are also presented. Although these rhyolites formed in quite different tectonic settings and display different geochemical and isotopic compositions, both formed from mafic parents within millennia.

  8. Long-term salinity tolerance is accompanied by major restructuring of the coral bacterial microbiome

    Rothig, Till

    2016-02-03

    Scleractinian corals are assumed to be stenohaline osmoconformers, although they are frequently subjected to variations in seawater salinity due to precipitation, freshwater runoff, and other processes. Observed responses to altered salinity levels include differences in photosynthetic performance, respiration, and increased bleaching and mortality of the coral host and its algal symbiont, but a study looking at bacterial community changes is lacking. Here we exposed the coral Fungia granulosa to strongly increased salinity levels in short- and long-term experiments to disentangle temporal and compartment effects of the coral holobiont (i.e. coral host, symbiotic algae, and associated bacteria). Our results show a significant reduction in calcification and photosynthesis, but a stable microbiome after short-term exposure to high salinity levels. By comparison, long-term exposure yielded unchanged photosynthesis levels and visually healthy coral colonies indicating long-term acclimation to high salinity levels that were accompanied by a major coral microbiome restructuring. Importantly, a bacterium in the family Rhodobacteraceae was succeeded by Pseudomonas veronii as the numerically most abundant taxon. Further, taxonomy-based functional profiling indicates a shift in the bacterial community towards increased osmolyte production, sulfur oxidation, and nitrogen fixation. Our study highlights that bacterial community composition in corals can change within days to weeks under altered environmental conditions, where shifts in the microbiome may enable adjustment of the coral to a more advantageous holobiont composition.

  9. Similarity dependency of the change in ERP component N1 accompanying with the object recognition learning.

    Tokudome, Wataru; Wang, Gang

    2012-01-01

    Performance during object recognition across views is largely dependent on inter-object similarity. The present study was designed to investigate the similarity dependency of object recognition learning on the changes in ERP component N1. Human subjects were asked to train themselves to recognize novel objects with different inter-object similarity by performing object recognition tasks. During the tasks, images of an object had to be discriminated from the images of other objects irrespective of the viewpoint. When objects had a high inter-object similarity, the ERP component, N1 exhibited a significant increase in both the amplitude and the latency variation across objects during the object recognition learning process, and the N1 amplitude and latency variation across the views of the same objects decreased significantly. In contrast, no significant changes were found during the learning process when using objects with low inter-object similarity. The present findings demonstrate that the changes in the variation of N1 that accompany the object recognition learning process are dependent upon the inter-object similarity and imply that there is a difference in the neuronal representation for object recognition when using objects with high and low inter-object similarity.

  10. LUCC and Accompanied Soil Degradation in China from 1960's to 1990's

    JIANG Qigang; Shintaro GOTO; Hiroki TAKAMURA

    2002-01-01

    This paper tries to qualitatively analyze land use and cover changes (LUCC) and accompanied soil degradation in China, the data of World Atlas of Agriculture in 1969, Land Cover Data of Asia in 1992 and Global Assessment of Human Induced Soil Degradation in 1992, etc. have been used. From 1960' s to 1990's, the area of forestland had increased, arable land and paddy as well as grassland had significantly decreased in China. The major type of soil degradation is due to water erosion, which is widely distributed especially in Loess Plateau and in Southeast and Southwest China, this happened in forestland, grassland and arable land and mainly resulted from deforestation. The secondary type is wind erosion, which is mainly distributed in Northwest China, it happened in arable land and grassland and was caused by overgrazing. Chemical deterioration is distributed in North and Northwest China, which happened in paddy, arable land and grassland. Physical deterioration only concentrated in local area in North China, it happened in arable and paddy. Chemical and physical deteriora-tion mainly resulted from unreasonable activity. Because of different human activities, different LUCC and different natural conditions, the types and strength of soil degradation can be different.

  11. "El Sexo no es Malo": Maternal Values Accompanying Contraceptive Use Advice to Young Latina Adolescent Daughters.

    Romo, Laura F; Bravo, Magali; Cruz, Maria Elena; Rios, Rebeca M; Kouyoumdjian, Claudia

    2010-06-01

    In this study, we utilized observational methods to identify maternal values and concerns accompanying contraceptive use advice in Latina mother-daughter sexuality conversations. The sample included non-sexually active early adolescents around 12 years of age and their mostly Spanish-speaking Latina mothers. Videotaped conversations were coded for the prevalence of messages related to four sexual values (abstinence, delay sex until older, sex is "normal", sex is "improper") and concerns about pregnancy and STD transmission. We examined whether the duration of time spent conversing about these messages was associated with participant characteristics, general communication openness, and the amount of time the dyads spent discussing contraceptive use. Results indicated that Latina mothers who had fewer years of education and lower family income talked longer to their daughters about the need to delay sex, avoid risky situations that would increase their chances of getting pregnant or acquiring an STD, and engage in self-protective practices. Less perceived openness in general communication as reported by both the mothers and the daughters was associated with increased time discussing that sex is improper. Although the duration of contraceptive use messages was brief, mothers and daughters who discussed the fact that sex is normal, and who communicated more about the importance of delaying sex, talked longer about contraceptive use practices compared to mothers and daughters who engaged in minimal discussion of these sexual values.

  12. Preference Reversals in Decision Making Under Risk are Accompanied by Changes in Attention to Different Attributes

    Kim, Betty E.; Seligman, Darryl; Kable, Joseph W.

    2012-01-01

    Recent work has shown that visual fixations reflect and influence trial-to-trial variability in people’s preferences between goods. Here we extend this principle to attribute weights during decision making under risk. We measured eye movements while people chose between two risky gambles or bid on a single gamble. Consistent with previous work, we found that people exhibited systematic preference reversals between choices and bids. For two gambles matched in expected value, people systematically chose the higher probability option but provided a higher bid for the option that offered the greater amount to win. This effect was accompanied by a shift in fixations of the two attributes, with people fixating on probabilities more during choices and on amounts more during bids. Our results suggest that the construction of value during decision making under risk depends on task context partly because the task differentially directs attention at probabilities vs. amounts. Since recent work demonstrates that neural correlates of value vary with visual fixations, our results also suggest testable hypotheses regarding how task context modulates the neural computation of value to generate preference reversals. PMID:22833715

  13. Late time observations of GRB080319B: jet break, host galaxy and accompanying supernova

    Tanvir, Nial R; Levan, Andrew; Fruchter, Andrew; Granot, Jonathan; Svensson, Karl M; O'Brien, Paul T; Wiersema, Klaas; Starling, Rhaana L C; Jakobsson, Pall; Fynbo, Johan; Hjorth, Jens; Curran, Peter; van der Horst, Alexander J; Kouveliotou, Chryssa; Racusin, Judith L; Burrows, David N; Genet, Frank

    2008-01-01

    The Swift-discovered GRB080319B was by far the most distant source ever observed at naked eye brightness, reaching a peak magnitude of 5.3 at a redshift of z=0.937. We present our late time optical and X-ray observations, which confirm that an achromatic break occurred in the power-law afterglow light curve at ~10^6 s post-burst. This most likely indicates that the gamma-ray burst (GRB) outflow was collimated, which for a uniform jet would imply a total energy in the jet E_{jet} \\gsim 10^{52.5} erg. Our observations also show a late-time excess of red light, which is well explained if the GRB was accompanied by a supernova, similar to those seen in some other long-duration GRBs. The latest observations are dominated by light from the host and show that the GRB took place in a faint dwarf galaxy (r(AB) = 27.2, rest-frame M_B = -17.3). This galaxy is small even by the standards of other GRB hosts, which is suggestive of a low metallicity environment.

  14. Motor imagery modulation of postural sway is accompanied by changes in the EMG-COP association.

    Lemos, Thiago; Rodrigues, Erika C; Vargas, Claudia D

    2014-08-08

    Motor imagery (MI) performed in an upright stance promotes increases in postural sway without changes in usual amplitude measures of calf muscle EMG. However, postural muscle activity can also be determined from the temporal association between EMG and center of pressure (COP) displacements. In this study we investigated whether the MI modulation of postural sway is accompanied by changes in EMG-COP association. Surface EMG from the lateral gastrocnemius (LG) muscle and COP coordinates were collected from 12 subjects while they imagined themselves performing a rising on tiptoes movement via kinesthetic or visual imagery. As a control condition subjects were requested to imagine singing a song. The standard deviation of the forward-backward COP sway and the coefficient of variation of the EMG were calculated and compared across tasks. The degree of association between COP sways and LG activity was evaluated through a cross-correlation function. Kinesthetic imagery promoted a larger COP displacement than both visual and control imagery (pEMG amplitude was observed across imagery tasks (p=0.08). Crucially, we found a stronger EMG-COP association during kinesthetic imagery compared to control imagery (p=0.02), whereas the EMG-COP association in visual imagery was not different from that observed during kinesthetic or control imagery (p>0.19). In conclusion, kinesthetic imagery resulted in a higher EMG-COP temporal association. Subliminal fringe mechanisms may account for the imagery effects on muscle activity and postural sway during upright stance.

  15. Structural alteration of cell wall pectins accompanies pea development in response to cold.

    Baldwin, Laëtitia; Domon, Jean-Marc; Klimek, John F; Fournet, Françoise; Sellier, Hélène; Gillet, Françoise; Pelloux, Jérôme; Lejeune-Hénaut, Isabelle; Carpita, Nicholas C; Rayon, Catherine

    2014-08-01

    Pea (Pisum sativum) cell wall metabolism in response to chilling was investigated in a frost-sensitive genotype 'Terese' and a frost-tolerant genotype 'Champagne'. Cell walls isolated from stipules of cold acclimated and non-acclimated plants showed that cold temperatures induce changes in polymers containing xylose, arabinose, galactose and galacturonic acid residues. In the tolerant cultivar Champagne, acclimation is accompanied by increases in homogalacturonan, xylogalacturonan and highly branched Rhamnogalacturonan I with branched and unbranched (1→5)-α-arabinans and (1→4)-β-galactans. In contrast, the sensitive cultivar Terese accumulates substantial amounts of (1→4)-β-xylans and glucuronoxylan, but not the pectins. Greater JIM7 labeling was observed in Champagne compared to Terese, indicating that cold acclimation also induces an increase in the degree of methylesterification of pectins. Significant decrease in polygalacturonase activities in both genotypes were observed at the end of cold acclimation. These data indicate a role for esterified pectins in cold tolerance. The possible functions for pectins and their associated arabinans and galactans in cold acclimation are discussed.

  16. Rapid increases in ventilation accompany the transition from passive to active movement.

    Bell, Harold J; Duffin, James

    2006-06-01

    We used a novel movement transition technique to look for evidence of a rapid onset drive to breathe related to the active component of exercise in humans. Ten volunteers performed the following transitions in a specially designed tandem exercise chair apparatus: rest to passive movement, passive to active movement, and rest to active movement. The transition from rest to active exercise was accompanied by an immediate increase in ventilation, as was the transition from rest to passive leg movement (Delta = 6.06 +/- 1.09 l min(-1), p ventilation again increased immediately and significantly (Delta = 2.55 +/- 0.52 l min(-1), p = 0.032). Ventilation at the first point of active exercise was the same when started either from rest or from a background of passive leg movement (p = 1.00). We conclude that the use of a transition from passive to active leg movements in humans recruits a ventilatory drive related to the active component of exercise, and this can be discerned as a rapid increase in breathing.

  17. Cell differentiation along multiple pathways accompanied by changes in histone acetylation status.

    Legartová, Soňa; Kozubek, Stanislav; Franek, Michal; Zdráhal, Zbyněk; Lochmanová, Gabriela; Martinet, Nadine; Bártová, Eva

    2014-04-01

    Post-translational modification of histones is fundamental to the regulation of basic nuclear processes and subsequent cellular events, including differentiation. In this study, we analyzed acetylated forms of histones H2A, H2B, and H4 during induced differentiation in mouse (mESCs) and human (hESCs) embryonic stem cells and during induced enterocytic differentiation of colon cancer cells in vitro. Endoderm-like differentiation of mESCs induced by retinoic acid and enterocytic differentiation induced by histone deacetylase inhibitor sodium butyrate were accompanied by increased mono-, di-, and tri-acetylation of histone H2B and a pronounced increase in di- and tri-acetylation of histone H4. In enterocytes, mono-acetylation of histone H2A also increased and tetra-acetylation of histone H4 appeared only after induction of this differentiation pathway. During differentiation of hESCs, we observed increased mono-acetylation and decreased tri-acetylation of H2B. Mono-, di-, and tri-acetylation of H4 were reduced, manifested by a significant increase in nonacetylated H4 histones. Levels of acetylated histones increased during induced differentiation in mESCs and during histone deacetylase (HDAC) inhibitor-induced enterocytic differentiation, whereas differentiation of human ESCs was associated with reduced acetylation of histones H2B and H4.

  18. Risk Factors Accompanied with Nephropathy in Patients with Type II Diabetes; Test of the Biopsychosocial Model

    I. Rahimian Boogar

    2012-07-01

    Full Text Available Introduction & Objective: The study of biopsychosocial factors influencing nephropathy as a most serious complication of type II diabetes is important. This study aimed to investigate risk factors accompanied with nephropathy in patients with type II diabetes based on the biopsychosocial model. Materials & Methods: In a cross-sectional descriptive study, 295 patients with type II diabetes were selected by convenience sampling in Tehran Shariati hospital outpatient clinics. The data were collected by demographical information questionnaire along with disease characteristics and depression anxiety stress scales (dass, quality of life scale (who- qol- bref, diabetes self-management scale (dsms, and diabetes knowledge scale (dks, then analyzed by chi-square, independent t-test and logistic regression with pasw software. Results: Hypertension (OR=3.841 & P0.05.Conclusion: It is important to pay attention to hypertension, glycated hemoglobin, body mass index, diabetes self-management, depression, quality of life, and diabetes knowledge for therapeutic intervention programming and diabetes complications control protocols for diabetic patients.(Sci J Hamadan Univ Med Sci 2012;19(2:44-53

  19. Associations between ulnar nerve strain and accompanying conditions in patients with cubital tunnel syndrome.

    Ochi, Kensuke; Horiuchi, Yukio; Nakamura, Toshiyasu; Sato, Kazuki; Morita, Kozo; Horiuchi, Koichi

    2014-01-01

    Pathophysiology of cubital tunnel syndrome (CubTS) is still controversial. Ulnar nerve strain at the elbow was measured intraoperatively in 13 patients with CubTS before simple decompression. The patients were divided into three groups according to their accompanying conditions: compression/adhesion, idiopathic, and relaxation groups. The mean ulnar nerve strain was 43.5 ± 30.0%, 25.5 ± 14.8%, and 9.0 ± 5.0% in the compression/adhesion, idiopathic, and relaxation groups respectively. The mean ulnar nerve strains in patients with McGowan's classification grades I, II, and III were 18.0 ± 4.2%, 27.1 ± 22.7%, and 33.7 ± 24.7%, respectively. The Jonckheere-Terpstra test showed that there were significant reductions in the ulnar nerve strain among the first three groups, but not in the three groups according to McGowan's classification. Our results suggest that the pathophysiology, not disease severity, of CubTS may be explained at least in part by the presence of ulnar nerve strain.

  20. Intracranial Hypertension in a Patient with a Chiari Malformation Accompanied by Hyperthyroidism.

    Pang, Chang Hwan; Lee, Soo Eon; Kim, Chi Heon; Chung, Chun Kee

    2015-09-01

    The Chiari malformation is an infrequently detected congenital anomaly characterized by the downward displacement of the cerebellum with a tonsillar herniation below the foramen magnum that may be accompanied by either syringomyelia or hydrocephalus. Surgery, such as foramen magnum decompression, is indicated for a symptomatic Chiari malformation, although an incidental lesion may be followed-up without further treatment. Infrequently, increased intracranial pressure emerges due to hyperthyroidism. A nineteen-year-old girl visited our outpatient clinic presented with a headache, nausea and vomiting. A brain and spinal magnetic resonance image study (MRI) indicated that the patient had a Chiari I malformation without syringomyelia or hydrocephalus. An enlarged thyroid gland was detected on a physical examination, and serum markers indicated Graves' disease. The patient started anti-hyperthyroid medical treatment. Subsequently, the headache disappeared after the medical treatment of hyperthyroidism without surgical intervention for the Chiari malformation. A symptomatic Chiari malformation is indicated for surgery, but a surgeon should investigate other potential causes of the symptoms of the Chiari malformation to avoid unnecessary surgery.

  1. Pseudoaneurysm Accompanied by Crowe Type IV Developmental Dysplasia of the Hip: A Case Report

    Hirotake Yo

    2012-01-01

    Full Text Available We report the case of a 72-year-old woman whose pseudoaneurysm was difficult to diagnose and treat. The patient had a history of congenital dislocated hip and was undergoing anticoagulation therapy with warfarin due to the mitral valve replacement. Her chief complaint was pain and enlargement of the left buttock, and the laboratory tests revealed severe anemia. However, her elderly depression confused her chief complaint, and she was transferred to a psychiatric hospital. Two months after the onset of the symptoms, she was finally diagnosed with a pseudoaneurysm by contrast-enhanced CT and angiography. IDC coils were used for embolization. A plain CT showed hemostasis as well as a reduced hematoma at 2 months after the embolization. The possible contributing factors for the pseudoaneurysm included bleeding due to warfarin combined with an intramuscular hematoma accompanied by Crowe type IV developmental dysplasia of the hip that led to an arterial rupture by impingement between pelvis and femoral head. Since the warfarin treatment could not be halted due to the valve replacement, embolization was chosen for her treatment, and the treatment outcome was favorable.

  2. Demands, subjectivity and therapeutic process: construction and limitations of Therapeutic Accompaniment

    Luís Felipe Ferro

    2014-12-01

    Full Text Available The Brazilian Psychiatric Reform movement proposed several changes in the field of mental health. Since then, guidelines have been redirecting actions to respond to different demands, associating social inclusion with clinical follow-up. In this context, Therapeutic Accompaniment (TA appears as an important device to compose interventions focused on the demands of individuals with mental disorders. Thus the present work aims to present reflections on the limitations and potentials of TA. This study was based on the practice of TA in the Occupational Therapy Traineeship in Mental Health of the Federal University of Parana - UFPR. Regarding the methodological framework, this paper is structured in a two-way approach: presentation of a case report and exploratory research using unstructured interviews focused on two subjects monitored by TA. Hermeneutic-dialectic analysis was used for data treatment. The results indicate that TA provides significant gains to the process of rehabilitation and construction of citizenship of individuals with mental disorders, enabling actions focused on the demands of the individual, family and community. Nevertheless, there is still the need for continuity of TA interventions, as well as some structural deadlocks that tend to decrease the power of this device.

  3. A novel gene, Pog, is necessary for primordial germ cell proliferation in the mouse and underlies the germ cell deficient mutation, gcd.

    Agoulnik, Alexander I; Lu, Baisong; Zhu, Qichao; Truong, Cavatina; Ty, Maria T; Arango, Nelson; Chada, Kiran K; Bishop, Colin E

    2002-11-15

    Primordial germ cells (PGCs) are the precursor of the germ cells in adult gonads. They arise extra-gonadally and migrate through somatic tissues to the presumptive genital ridges, where they proliferate and differentiate into oogonia or spermatogonia cells. Abnormalities in this developmental process can cause embryonic depletion of germ cells leading to infertility in the adult. We report here that the mouse gcd (germ cell deficient) mutant phenotype, characterized by reduced numbers of PGCs and adult sterility, is due to reduced PGC proliferation rather than aberrant migration and is caused by the partial deletion of a single novel gene, Pog (proliferation of germ cells). Pog is critical for normal PGC proliferation, starting between 9.5 and 10.25 dpc when germ cells begin to migrate to the developing genital ridge. Deletion of Pog is also accompanied by reduced embryonic body weight and, on some genetic backgrounds, embryonic lethality. Thus, in addition to being necessary for PGC proliferation, Pog may have a wider significance in early embryonic development.

  4. Evaluation of germ-cell kinetics in infertile patients with proliferating cell nuclear antigen proliferating index

    Li ZENG; Xiang-Tian KONG; Jin-Wei SU; Tong-Li XIA; Yan-Qun NA; Ying-Lu GUO

    2001-01-01

    To explore the usefulness of proliferating cell nuclear antigen proliferating index (PCNA PI) in the pathological diagnosis and treatment of male infertility. Methods: Testicular biopsy specimen obtained from 48 cases of male infertility and 2 normal controls were fixed and embedded. The sections were stained with anti-PCNA monoclonal antibodies or haematoxylin/eosin. Proliferating index (PI), expressed as the percentage of germ-cell nuclei positively stained with PCNA antibody, was assessed from more than 20 seminiferous tubules or 600 germ-cells. Results: The infertile patients were divided into 4 groups: Group 1, normal spermatogenesis ( 14 cases); Group 2, hypospermatogenesis (16 cases); Group 3, germinal arrest (10 cases); Group 4, Sertoli cell only syndrome (8 cases). The PCNA PI of normal control testis was 86.5% (mean value). Group 3 had a significantly lower PCNA PI (29.8%) than normal testis; Group 1 and 2 had similar Pis (82.3% and 82.3%, respectively) as the control testis. PI of the negative control (Group 4) was 0 as no germ-cells were found. Conclusion: PCNA PI is useful for assessing germ-cell kinetics, especially for pathological diagnosis of germinal arrest which is difficult to differentiate by routine HE staining technique. In germinal arrest, there is a significantly lowered PCNA PI, which is an indication of DNA synthesis deterioration, suggesting the use of therapies be different from those for hypospermatogenesis.

  5. Peroxisome proliferator-activated receptor gamma overexpression suppresses proliferation of human colon cancer cells

    Tsukahara, Tamotsu, E-mail: ttamotsu@shinshu-u.ac.jp [Department of Integrative Physiology and Bio-System Control, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan); Haniu, Hisao [Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621 (Japan)

    2012-08-03

    Highlights: Black-Right-Pointing-Pointer We examined the correlation between PPAR{gamma} expression and cell proliferation. Black-Right-Pointing-Pointer PPAR{gamma} overexpression reduces cell viability. Black-Right-Pointing-Pointer We show the synergistic effect of cell growth inhibition by a PPAR{gamma} agonist. -- Abstract: Peroxisome proliferator-activated receptor gamma (PPAR{gamma}) plays an important role in the differentiation of intestinal cells and tissues. Our previous reports indicate that PPAR{gamma} is expressed at considerable levels in human colon cancer cells. This suggests that PPAR{gamma} expression may be an important factor for cell growth regulation in colon cancer. In this study, we investigated PPAR{gamma} expression in 4 human colon cancer cell lines, HT-29, LOVO, DLD-1, and Caco-2. Real-time polymerase chain reaction (PCR) and Western blot analysis revealed that the relative levels of PPAR{gamma} mRNA and protein in these cells were in the order HT-29 > LOVO > Caco-2 > DLD-1. We also found that PPAR{gamma} overexpression promoted cell growth inhibition in PPAR{gamma} lower-expressing cell lines (Caco-2 and DLD-1), but not in higher-expressing cells (HT-29 and LOVO). We observed a correlation between the level of PPAR{gamma} expression and the cells' sensitivity for proliferation.

  6. A Brief Analysis on Dance Piano Accompaniment Teaching%舞蹈钢琴伴奏教学浅析

    冷平

    2011-01-01

    The essential point of the paper is trying to explore the relationship between dance and music,the position of piano accompaniment in dance performance,how dance moves and piano accompaniment adapt to music styles,and how music sense and artistic accomplishment play important role on promoting dance piano accompaniment and so on.Dance piano accompaniment is not subordinate to dance.On the contrary,piano accompaniment can strengthen the dance emotion and endow with movement and vitality in the classroom teaching activities.Besides,it can make students more easily understand the content of dance training and improve dance teaching quality.%舞蹈与音乐是相生相灭、相辅相成的.钢琴伴奏是当今舞蹈教学中不可缺少的环节,是舞蹈教学中的重要组成部分.充分发挥钢琴伴奏在舞蹈教学中的作用,达到音乐与舞蹈完美的融合,这对舞蹈钢琴伴奏者提出了较高的专业要求.

  7. The possibility of life proliferation from Enceladus

    Czechowski, Leszek

    2016-07-01

    Enceladus is a medium sized icy satellite (MIS) of Saturn. MIS are built of mixtures of rocks and ices. According to [1]: "For life to have emerged […] on the early Earth, a sustained source of chemically transducible energy was essential. The serpentinization process is emerging as an increasingly likely source of that energy" (see also [2]). We consider here conditions for origin of life in the early Enceladus and later proliferation of the life. Mass of serpentinite: The serpentinization on the Earth is often considered with hydrothermal activity in neovolcanic zones along mid-oceanic spreading centers. However, only in small part the hydrothermal activity really occurs. A simple calculations (e.g. [3]) indicate that mass fraction of silicates in Enceladus is ~0.646, hence the total mass of its silicate is ~6.97 10^1^9 kg. [4] considered the process of differentiation and core forming in Enceladus. He found that the result of differentiation is a relatively cold core of loosely packed grains with water between them. The entire core of Enceladus was probably permeable. This could lead to formation of extensive hydrothermal convective systems. It indicates that total mass of serpententinized silicate in Enceladus could be larger than on the Earth. The evolution of temperature in the Enceladus interior for the first a few hundreds Myr is given in [4]. He found that the temperature allows for existing the life even in the center of the satellite. It is possible that for hundreds of Myr the conditions in Enceladus were more favorable for origin of life than on the Earth. Proliferation of life: The low gravity of the Enceladus and its volcanic activity make transport possible. Note that the low temperature of plumes from active region of Enceladus does not kill the organisms. The primitive bacteria could leave the Enceladus with volcanic jets in the same way as particles of the E ring. Other mechanisms could transport particles to terrestrial planets. Therefore it

  8. Extended Deterrence, Nuclear Proliferation, and START III

    Speed, R.D.

    2000-06-20

    Early in the Cold War, the United States adopted a policy of ''extended nuclear deterrence'' to protect its allies by threatening a nuclear strike against any state that attacks these allies. This threat can (in principle) be used to try to deter an enemy attack using conventional weapons or one using nuclear, chemical, or biological weapons. The credibility of a nuclear threat has long been subject to debate and is dependent on many complex geopolitical factors, not the least of which is the military capabilities of the opposing sides. The ending of the Cold War has led to a significant decrease in the number of strategic nuclear weapons deployed by the United States and Russia. START II, which was recently ratified by the Russian Duma, will (if implemented) reduce the number deployed strategic nuclear weapons on each side to 3500, compared to a level of over 11,000 at the end of the Cold War in 1991. The tentative limit established by Presidents Clinton and Yeltsin for START III would reduce the strategic force level to 2000-2500. However, the Russians (along with a number of arms control advocates) now argue that the level should be reduced even further--to 1500 warheads or less. The conventional view is that ''deep cuts'' in nuclear weapons are necessary to discourage nuclear proliferation. Thus, as part of the bargain to get the non-nuclear states to agree to the renewal of the Nuclear Non-Proliferation Treaty, the United States pledged to work towards greater reductions in strategic forces. Without movement in the direction of deep cuts, it is thought by many analysts that some countries may decide to build their own nuclear weapons. Indeed, this was part of the rationale India used to justify its own nuclear weapons program. However, there is also some concern that deep cuts (to 1500 or lower) in the U.S. strategic nuclear arsenal could have the opposite effect. The fear is that such cuts might undermine extended

  9. Cancer cell-selective promoter recognition accompanies antitumor effect by glucocorticoid receptor-targeted gold nanoparticle

    Sau, Samaresh; Agarwalla, Pritha; Mukherjee, Sudip; Bag, Indira; Sreedhar, Bojja; Pal-Bhadra, Manika; Patra, Chitta Ranjan; Banerjee, Rajkumar

    2014-05-01

    Nanoparticles, such as gold nanoparticles (GNP), upon convenient modifications perform multi tasks catering to many biomedical applications. However, GNP or any other type of nanoparticles is yet to achieve the feat of intracellular regulation of endogenous genes of choice such as through manipulation of a gene-promoter in a chromosome. As for gene modulation and delivery, GNP (or other nanoparticles) showed only limited gene therapy potential, which relied on the delivery of `exogenous' genes invoking gene knockdown or replacement. Practically, there are no instances for the nanoparticle-mediated promoter regulation of `endogenous' genes, more so, as a cancer selective phenomenon. In this regard, we report the development of a simple, easily modifiable GNP-formulation, which promoted/up-regulated the expression of a specific category of `endogenous' genes, the glucocorticoid responsive genes. This genetic up-regulation was induced in only cancer cells by modified GNP-mediated transcriptional activation of its cytoplasmic receptor, glucocorticoid receptor (GR). Normal cells and their GR remained primarily unperturbed by this GNP-formulation. The most potent gene up-regulating GNP-formulation down-regulated a cancer-specific proliferative signal, phospho-Akt in cancer cells, which accompanied retardation of tumor growth in the murine melanoma model. We show that GR-targeted GNPs may find potential use in the targeting and modulation of genetic information in cancer towards developing novel anticancer therapeutics.Nanoparticles, such as gold nanoparticles (GNP), upon convenient modifications perform multi tasks catering to many biomedical applications. However, GNP or any other type of nanoparticles is yet to achieve the feat of intracellular regulation of endogenous genes of choice such as through manipulation of a gene-promoter in a chromosome. As for gene modulation and delivery, GNP (or other nanoparticles) showed only limited gene therapy potential, which relied

  10. Processes accompanying of mantle plume emplacement into continental lithosphere: Evidence from NW Arabian plate, Western Syria

    Sharkov, E. V.

    2015-12-01

    Lower crustal xenoliths occurred in the Middle Cretaceous lamprophyre diatremes in Jabel Ansaria (Western Syria) (Sharkov et al., 1992). They are represented mainly garnet granulites and eclogite-like rocks, which underwent by deformations and retrograde metamorphism, and younger fresh pegmatoid garnet-kaersutite-clinopyroxene (Al-Ti augite) rocks; mantle peridotites are absent in these populations. According to mineralogical geothermobarometers, forming of garnet-granulite suite rocks occurred under pressure 13.5-15.4 kbar (depths 45-54 kn) and temperature 965-1115oC. At the same time, among populations of mantle xenoliths in the Late Cenozoic platobasalts of the region, quite the contrary, lower crustal xenoliths are absent, however, predominated spinel lherzolites (fragments of upper cooled rim of a plume head), derived from the close depths (30-40 km: Sharkov, Bogatikov, 2015). From this follows that ancient continental crust was existed here even in the Middle Cretaceous, but in the Late Cenozoic was removed by extended mantle plume head; at that upper sialic crust was not involved in geomechanic processes, because Precambrian metamorphic rocks survived as a basement for Cambrian to Cenozoic sedimentary cover of Arabian platform. In other words, though cardinal rebuilding of deep-seated structure of the region occurred in the Late Cenozoic but it did not affect on the upper shell of the ancient lithosphere. Because composition of mantle xenolithis in basalts is practically similar worldwide, we suggest that deep-seated processes are analogous also. As emplacement of the mantle plume heads accompanied by powerful basaltic magmatism, very likely that range of lower (mafic) continental crust existence is very convenient for extension of plume heads and their adiabatic melting. If such level, because of whatever reasons, was not reached, melting was limited but appeared excess of volatile matters which led to forming of lamprophyre or even kimberlite.

  11. PTRF/Cavin-1 Deficiency Causes Cardiac Dysfunction Accompanied by Cardiomyocyte Hypertrophy and Cardiac Fibrosis

    Ogata, Takehiro; Kasahara, Takeru; Nakanishi, Naohiko; Miyagawa, Kotaro; Naito, Daisuke; Hamaoka, Tetsuro; Nishi, Masahiro; Matoba, Satoaki; Ueyama, Tomomi

    2016-01-01

    Mutations in the PTRF/Cavin-1 gene cause congenital generalized lipodystrophy type 4 (CGL4) associated with myopathy. Additionally, long-QT syndrome and fatal cardiac arrhythmia are observed in patients with CGL4 who have homozygous PTRF/Cavin-1 mutations. PTRF/Cavin-1 deficiency shows reductions of caveolae and caveolin-3 (Cav3) protein expression in skeletal muscle, and Cav3 deficiency in the heart causes cardiac hypertrophy with loss of caveolae. However, it remains unknown how loss of PTRF/Cavin-1 affects cardiac morphology and function. Here, we present a characterization of the hearts of PTRF/Cavin-1-null (PTRF−/−) mice. Electron microscopy revealed the reduction of caveolae in cardiomyocytes of PTRF−/− mice. PTRF−/− mice at 16 weeks of age developed a progressive cardiomyopathic phenotype with wall thickening of left ventricles and reduced fractional shortening evaluated by echocardiography. Electrocardiography revealed that PTRF−/− mice at 24 weeks of age had low voltages and wide QRS complexes in limb leads. Histological analysis showed cardiomyocyte hypertrophy accompanied by progressive interstitial/perivascular fibrosis. Hypertrophy-related fetal gene expression was also induced in PTRF−/− hearts. Western blotting analysis and quantitative RT-PCR revealed that Cav3 expression was suppressed in PTRF−/− hearts compared with that in wild-type (WT) ones. ERK1/2 was activated in PTRF−/− hearts compared with that in WT ones. These results suggest that loss of PTRF/Cavin-1 protein expression is sufficient to induce a molecular program leading to cardiomyocyte hypertrophy and cardiomyopathy, which is partly attributable to Cav3 reduction in the heart. PMID:27612189

  12. Movement-related potentials accompanying unilateral and bilateral finger movements with different inertial loads.

    Kristeva, R; Cheyne, D; Lang, W; Lindinger, G; Deecke, L

    1990-05-01

    The present study was aimed at investigating the effect of inertial loading on movement-related potentials (MRPs) recorded from the scalps of normal subjects while performing finger movements. Two experiments were performed. Experiment 1. MRPs preceding and accompanying the execution of voluntary, unilateral finger movements were investigated in 8 subjects under the 3 experimental conditions of: no inertial load, small inertial load (250 g), and large inertial load (400 g). A significant effect of the inertial load on Bereitschaftspotential (BP) amplitude was observed for the 100 msec period preceding movement onset (BP -100 to 0) at precentral electrode sites and following movement onset (N0 to 100) at both precentral and parietal electrode sites. Pairwise comparisons revealed that significant effects were due to differences between the loading and non-loading conditions and not for different amounts of loading. No significant differences were observed for BP onset or early BP amplitudes, indicating that scalp negativity immediately prior to, and during, movement onset is primarily influenced by conditions of inertial loading. Experiment 2. This experiment examined the effect of inertial loading on MRPs for bilateral, simultaneous voluntary finger movements in 10 subjects under conditions of: no inertial load, inertial load applied separately to the left and right fingers, and with identical inertial loads applied to both fingers. No significant effect of inertial load on MRP amplitude was observed. These results are contrasted with those of experiment 1 which show significant effects of inertial loading for unilateral movements and are interpreted in terms of the hypothesis that bilateral movement organization involves 'higher' aspects of motor control than those reflecting adjustment to conditions of inertial loading.

  13. Laparoscopic cholecystectomy accompanied by simultaneous umbilical hernia repair: A retrospective study

    Kamer E

    2007-01-01

    Full Text Available Background : Umbilical defects may cause technical problems for general surgeons in patients during laparoscopic cholecystectomy (LC operations and may increase the incidence of incisional hernia. Aim : The objectives of this study were to determine the optimal repair method for umbilical hernias that already exist or are encountered incidentally and to present data regarding potential problems that may occur during LC. Settings and Design : Medical records of patients who had received simultaneous umbilical hernia repair (UHR with LC were investigated retrospectively. Materials and Methods : Cholelithiasis was accompanied by umbilical hernia in 64 (8.6% out of 745 patients who underwent LC and UHR simultaneously in our hospital between 2000 and 2004. Statistical Analysis Used : The Mann-Whitney U, Chi-square, One-Way Anova, Kaplan-Meier survival analysis, the log-rank test and t test were used for statistical analyses. Results : LC was followed by UHR using primary suture (Group 1, Mayo repair (Group 2 and flat mesh-based repair (Group 3 in 32 (50%, 18 (28.1% and 14 (21.9% patients, respectively. Mean body mass indexes (BMI of patients were 26.6 kg/m 2 , 29.2 kg/m 2 and 39.9 kg/m 2 in Groups 1, 2 and 3, respectively. Recurrence rates were 9.4%, 5.6% and none (0% in Groups 1, 2 and 3, respectively. Recurrence was observed in three (7.0% out of 43(67.2% patients with BMI≥30 kg/m 2 while umbilical hernia recurred in one (4.8% out of 21 (32.8% patients with BMI< 30 kg/m 2 . Overall morbidity and mortality rates were 14.1% and 0%, respectively. Conclusions : The outcomes of the UHR with mesh after laparoscopic surgeries appear to be better for either obese or non-obese patients than primary suture techniques in recurrence rates.

  14. Hybridization accompanying FRET event in labeled natural nucleoside-unnatural nucleoside containing chimeric DNA duplexes.

    Bag, Subhendu Sekhar; Das, Suman K; Pradhan, Manoj Kumar; Jana, Subhashis

    2016-09-01

    Förster resonance energy transfer (FRET) is a highly efficient strategy in illuminating the structures, structural changes and dynamics of DNA, proteins and other biomolecules and thus is being widely utilized in studying such phenomena, in designing molecular/biomolecular probes for monitoring the hybridization event of two single stranded DNA to form duplex, in gene detection and in many other sensory applications in chemistry, biology and material sciences. Moreover, FRET can give information about the positional status of chromophores within the associated biomolecules with much more accuracy than other methods can yield. Toward this end, we want to report here the ability of fluorescent unnatural nucleoside, triazolylphenanthrene ((TPhen)BDo) to show FRET interaction upon hybridization with fluorescently labeled natural nucleosides, (Per)U or (OxoPy)U or (Per)U, forming two stable chimeric DNA duplexes. The pairing selectivity and the thermal duplex stability of the chimeric duplexes are higher than any of the duplexes with natural nucleoside formed. The hybridization results in a Förster resonance energy transfer (FRET) from donor triazolylphenanthrene of (TPhen)BDo to acceptor oxopyrene of (OxoPy)U and/or to perylene chromophore of (Per)U, respectively, in two chimeric DNA duplexes. Therefore, we have established the FRET process in two chimeric DNA duplexes wherein a fluorescently labeled natural nucleoside ((OxoPy)U or (Per)U) paired against an unnatural nucleoside ((TPhen)BDo) without sacrificing the duplex stability and B-DNA conformation. The hybridization accompanying FRET event in these classes of interacting fluorophores is new. Moreover, there is no report of such designed system of chimeric DNA duplex. Our observed phenomenon and the design can potentially be exploited in designing more of such efficient FRET pairs for useful application in the detection and analysis of biomolecular interactions and in material science application.

  15. Decreases in community viral load are accompanied by reductions in new HIV infections in San Francisco.

    Moupali Das

    Full Text Available BACKGROUND: At the individual level, higher HIV viral load predicts sexual transmission risk. We evaluated San Francisco's community viral load (CVL as a population level marker of HIV transmission risk. We hypothesized that the decrease in CVL in San Francisco from 2004-2008, corresponding with increased rates of HIV testing, antiretroviral therapy (ART coverage and effectiveness, and population-level virologic suppression, would be associated with a reduction in new HIV infections. METHODOLOGY/PRINCIPAL FINDINGS: We used San Francisco's HIV/AIDS surveillance system to examine the trends in CVL. Mean CVL was calculated as the mean of the most recent viral load of all reported HIV-positive individuals in a particular community. Total CVL was defined as the sum of the most recent viral loads of all HIV-positive individuals in a particular community. We used Poisson models with robust standard errors to assess the relationships between the mean and total CVL and the primary outcome: annual numbers of newly diagnosed HIV cases. Both mean and total CVL decreased from 2004-2008 and were accompanied by decreases in new HIV diagnoses from 798 (2004 to 434 (2008. The mean (p = 0.003 and total CVL (p = 0.002 were significantly associated with new HIV cases from 2004-2008. CONCLUSIONS/SIGNIFICANCE: Reductions in CVL are associated with decreased HIV infections. Results suggest that wide-scale ART could reduce HIV transmission at the population level. Because CVL is temporally upstream of new HIV infections, jurisdictions should consider adding CVL to routine HIV surveillance to track the epidemic, allocate resources, and to evaluate the effectiveness of HIV prevention and treatment efforts.

  16. Monitoring of the Enzymatic Degradation of Protein Corona and Evaluating the Accompanying Cytotoxicity of Nanoparticles.

    Ma, Zhifang; Bai, Jing; Jiang, Xiue

    2015-08-19

    Established nanobio interactions face the challenge that the formation of nanoparticle-protein corona complexes shields the inherent properties of the nanoparticles and alters the manner of the interactions between nanoparticles and biological systems. Therefore, many studies have focused on protein corona-mediated nanoparticle binding, internalization, and intracellular transportation. However, there are a few studies to pay attention to if the corona encounters degradation after internalization and how the degradation of the protein corona affects cytotoxicity. To fill this gap, we prepared three types of off/on complexes based on gold nanoparticles (Au NPs) and dye-labeled serum proteins and studied the extracellular and intracellular proteolytic processes of protein coronas as well as their accompanying effects on cytotoxicity through multiple evaluation mechanisms, including cell viability, adenosine triphosphate (ATP) content, mitochondrial membrane potential (MMP), and reactive oxygen species (ROS). The proteolytic process was confirmed by recovery of the fluorescence of the dye-labeled protein molecules that was initially quenched by Au NPs. Our results indicate that the degradation rate of protein corona is dependent on the type of the protein based on systematical evaluation of the extracellular and intracellular degradation processes of the protein coronas formed by human serum albumin (HSA), γ-globulin (HGG), and serum fibrinogen (HSF). Degradation is the fastest for HSA corona and the slowest for HSF corona. Notably, we also find that the Au NP-HSA corona complex induces lower cell viability, slower ATP production, lower MMP, and higher ROS levels. The cytotoxicity of the nanoparticle-protein corona complex may be associated with the protein corona degradation process. All of these results will enrich the database of cytotoxicity induced by nanomaterial-protein corona complexes.

  17. Refractory ulcerative colitis accompanied with cytomegalovirus colitis and multiple liver abscesses:A case report

    Takuya Inoue; Ken Toshina; Takashi Nishikawa; Norihiro Hamamoto; Ken Nakagawa; Ken-Ichi Katsu; Ichiro Hirata; Yutaro Egashira; Kumi Ishida; Ken Kawakami; Eijiro Morita; Naoko Murano; Shingo Yasumoto; Mitsuyuki Murano

    2005-01-01

    Various hepato-biliary complications are an increased incidence in patients with inflammatory bowel disease,and portal bacteremia is well documented in patients with ulcerative colitis (UC). However, few reports mention UC in association with liver abscesses. Recently, there are several reports describing cytomegalovirus (CMV) infection in association with disease exacerbation and steroid refractoriness in patients with UC. Here we present a case of refractory UC accompanied with multiple liver abscesses and CMV colitis. The patient, a 72-year-old male, with a five-year history of repeated admissions to our hospital for UC, presented with an exacerbation of his UC.Sigmoidoscopy performed on admission suggested that his UC was exacerbated, then he was given prednisolone and mesalazine orally, and betamethasone enemas.However, he had exacerbated symptoms. Repeat sigmoidoscopy revealed multiple longitudinal ulcers and pseudopolyps in the rectosigmoid colon. Although immunohistochemical staining of biopsy specimens and the serum testing for antigenemia were negative on admission and after the repeat sigmoidoscopy, they became histologically positive for CMV. Nonetheless, the patient developed spiking fevers, soon after ganciclovir was administered. Laboratory studies revealed an increased white cell count with left shift, and Enterococcus fecalis grew in blood cultures. An abdominal computed tomography (CT) scan was obtained and the diagnosis of liver abscesses associated with UC was made, based on CT results. The hepatic abscesses were successfully treated with intravenous meropenem for 6 wk, without further percutaneous drainage. To our knowledge, this is the first reported case of multiple liver abscesses that develop during UC exacerbation complicated by CMV colitis.

  18. One-way-coupling simulation of cavitation accompanied by high-speed droplet impact

    Kondo, Tomoki; Ando, Keita

    2016-03-01

    Erosion due to high-speed droplet impact is a crucial issue in industrial applications. The erosion is caused by the water-hammer loading on material surfaces and possibly by the reloading from collapsing cavitation bubbles that appear within the droplet. Here, we simulate the dynamics of cavitation bubbles accompanied by high-speed droplet impact against a deformable wall in order to see whether the bubble collapse is violent enough to give rise to cavitation erosion on the wall. The evolution of pressure waves in a single water (or gelatin) droplet to collide with a deformable wall at speed up to 110 m/s is inferred from simulations of multicomponent Euler flow where phase changes are not permitted. Then, we examine the dynamics of cavitation bubbles nucleated from micron/submicron-sized gas bubble nuclei that are supposed to exist inside the droplet. For simplicity, we perform Rayleigh-Plesset-type calculations in a one-way-coupling manner, namely, the bubble dynamics are determined according to the pressure variation obtained from the Euler flow simulation. In the simulation, the preexisting bubble nuclei whose size is either micron or submicron show large growth to submillimeters because tension inside the droplet is obtained through interaction of the pressure waves and the droplet interface; this supports the possibility of having cavitation due to the droplet impact. It is also found, in particular, for the case of cavitation arising from very small nuclei such as nanobubbles, that radiated pressure from the cavitation bubble collapse can overwhelm the water-hammer pressure directly created by the impact. Hence, cavitation may need to be accounted for when it comes to discussing erosion in the droplet impact problem.

  19. A Study of Using Massage Therapy Accompanied with Stretching Exercise for Rehabilitation of Mammary Gland Hyperplasia

    Pin Lv

    2016-01-01

    Full Text Available Purpose. To apply massage therapy accompanied with stretching exercises for treatment of mammary gland hyperplasia, evaluate the clinical outcome in patients, and estimate the therapy as a novel treatment method for mammary hyperplasia. Methods. 28 adult female patients were selected and treated with massage therapy and stretching exercises focusing on skeleton muscles of chest, abdomen, and axilla. The mammary gland oxyhemoglobin (OxyHb and deoxyhemoglobin (DeoxyHb levels were detected before and after treatment after 15, 30, and 45 days. Results. In this cohort, pretreatment OxyHb (mean ± SD is 1.32±0.14 (medium-high, and DeoxyHb is 0.87±0.13 (normal. All patients were clinically diagnosed with benign mammary gland hyperplasia and mastitis. The posttreatment OxyHb levels are 1.23±0.09 (normal-medium, 15-day, 1.16±0.08 (normal, 30-day, and 1.05±0.04 (normal, 45-day, and DeoxyHb levels are 0.90±0.11 (normal, 15-day, 0.94±0.18 (normal, 30-day, and 0.98±0.12 (normal, 45-day. Patients were diagnosed with decreased hyperplasia 15 and 30 days after treatment and with no symptom of hyperplasia in mammary gland 45 days after treatment. Conclusion. Mammary gland hyperplasia is closely correlated with pathological changes of skeletal muscles and could be significantly improved by massage therapy and stretching exercises targeting neighboring skeletal muscles.

  20. Magnetic Resonance Imaging of Mitochondrial Dysfunction and Metabolic Activity, Accompanied by Overproduction of Superoxide.

    Bakalova, Rumiana; Georgieva, Ekaterina; Ivanova, Donika; Zhelev, Zhivko; Aoki, Ichio; Saga, Tsuneo

    2015-12-16

    This study shows that a mitochondria-penetrating nitroxide probe (mito-TEMPO) allows detection of superoxide and visualization of mitochondrial dysfunction in living cells due to the effect of T1 shortening in MRI. Mitochondrial dysfunction was induced by treatment of cells with rotenone and 2-methoxyestradiol (2-ME/Rot). The MRI measurements were performed on 7T MRI. The 2-ME/Rot-treated cells were characterized by overproduction of superoxide, which was confirmed by a conventional dihydroethidium test. In the presence of mito-TEMPO, the intensity of MRI signal in 2-ME/Rot-treated cells was ∼30-40% higher, in comparison with that in untreated cells or culture media. In model (cell-free) systems, we observed that superoxide, but not hydrogen peroxide, increased the intensity of T1-weighted MRI signal of mito-TEMPO. Moreover, the superoxide restores the T1-weighted MRI contrast of mito-TEMPOH, a noncontrast (diamagnetic) analogue of mito-TEMPO. This was also confirmed by using EPR spectroscopy. The results demonstrate that superoxide radical is involved in the enhancement of T1-weighted MRI contrast in living cells, in the absence and presence of mito-TEMPO. This report gives a direction for discovering new opportunities for functional MRI, for detection of metabolic activity, accompanied by overproduction of superoxide, as well as by disturbance of the balance between superoxide and hydrogen peroxide, a very important approach to clarify the fine molecular mechanisms in the regulation of many pathologies. The visualization of mitochondrial activity in real-time can be crucial to clarify the molecular mechanism of the functional MRI in its commonly accepted definition, as a method for detection of neurovascular coupling.

  1. Kimura's disease accompanied by mediastinal lymphadenopathy misdiagnosed as lung cancer: Case report and review of literatures

    Xi SUN

    2012-06-01

    Full Text Available Objective  To further investigate the diagnostic pitfalls of Kimura's disease(KD. Methods  We report one case of Kimura's disease accompanied with mediastinal lymphadenopathy admitted to General Hospital of Chinese PLA in the year 2010. After searching on PubMed and Chinese Medical Journal Searching Engines(Wanfang data base,Cqvip data base,we have found literatures reporting another 3 cases of Kimura's disease with mediastinal lymphadenopathy. Plus the one we presented, all four patients' clinical data were collected and analyzed thereafter. Up-to-date advancement on KD's diagnosis and therapy would also be reviewed. Results  Our case, a 61-year-old male, was initially misdiagnosed as lung cancer with mediastinal metastasis in 2008, but histopathology had confirmed only eosinophil infiltration in enlarged mediasinal lymph nodes, no malignant cells were identified. In the year 2010, he complained bilateral orbital masses, one of which was surgically removed, and was later confirmed as Kimura's disease by histopathology. Clinical features of 4 patients, including our case and the other 3 retrieved in literatures, were available, 2 of whom were misdiagnosed as lung cancer while the other 2 as lymphoma in the beginning. All the 4 patients were responsive to steroid therapy. Conclusions  Kimura's disease could be associated with mediastinal lymphadenopathy which may confuse the physicians in diagnosing. Newly developed minimal invasive approaches such as endoscopic ultrasound-guided fine needle aspiration (EUS-FNA and endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA are helpful for the differential diagnosis.

  2. Inhibition of cultured bovine aortic endothelial cell proliferation by sodium spirulan, a new sulfated polysaccharide isolated from Spirulina platensis.

    Kaji, Toshiyuki; Fujiwara, Yasuyuki; Hamada, Chieko; Yamamoto, Chika; Shimada, Satomi; Lee, Jung-Bum; Hayashi, Toshimitsu

    2002-06-01

    Sodium spirulan (Na-SP) is a sulfated polysaccharide isolated from the blue-green alga Spirulina platensis, which consists of two types of disaccharide repeating units, O-hexuronosyl-rhamnose (aldobiuronic acid) and O-rhamnosyl-3-O-methylrhamnose (acofriose) with sulfate groups, other minor saccharides and sodium ion. Vascular endothelial cells are present on the inner surface of blood vessels in a monolayer and have anticoagulant properties. To address the question whether Na-SP influences the maintenance of endothelial cell monolayers, we investigated the proliferation of cultured bovine aortic endothelial cells treated with Na-SP. It was found that Na-SP has an inhibitory activity on endothelial cell proliferation accompanied with suppression of whole protein synthesis but without non-specific cell damage. The inhibitory activity of Na-SP was the strongest when compared to that of heparan sulfate, heparin, dextran sulfate, dermatan sulfate, chondroitin sulfate A/C and hyaluronan. Furthermore, it was shown that the inhibitory activity of Na-SP disappeared by either desulfation or depolymerization. The present data suggest that Na-SP is a unique sulfated polysaccharide that strongly inhibits vascular endothelial cell proliferation, and the inhibitory activity requires polymerization of sulfated O-rhamnosyl-acofriose repeating units.

  3. Inactivating the spindle checkpoint kinase Bub1 during embryonic development results in a global shutdown of proliferation

    Taylor Stephen S

    2009-09-01

    Full Text Available Abstract Background Bub1 is a component of the spindle assembly checkpoint, a surveillance mechanism that maintains chromosome stability during M-phase. Bub1 is essential during the early stages of embryogenesis, with homozygous BUB1-null mice dying shortly after day E3.5. Bub1 is also required later during embryogenesis; inactivation of BUB1 on day E10.5 appears to rapidly block all further development. However, the mechanism(s responsible for this phenotype remain unclear. Findings Here we show that inactivating BUB1 on day E10.5 stalls embryogenesis within 48 hours. This is accompanied by a global shutdown of proliferation, widespread apoptosis and haemorrhaging. Conclusion Our results suggest that Bub1 is required throughout the developing embryo for cellular proliferation. Therefore, Bub1 has been shown to be essential in all scenarios analyzed thus far in mice: proliferation of cultured fibroblasts, spermatogenesis, oogenesis and both early and late embryonic development. This likely reflects the fact that Bub1 has dual functions during mitosis, being required for both SAC function and chromosome alignment.

  4. Effects of apigenin on cell proliferation of human pancreatic carcinoma cell line BxPC-3 in vitro

    Jiancang Ma; Qiang Li; Jun Zhao; Ying Guo; Qinghua Su; Zongzheng Ji

    2007-01-01

    Objective: To observe the effects of apigenin on cell proliferation of human pancreatic carcinoma cell line BxPC-3 in vitro.Methods :The inhibitive effects of apigenin at different concentrations (0 μmol/L, 100 μmol/L, 200 μmol/L, and 400 μmol/L)on human pancreatic carcinoma cell line BxPC-3 were detected by MTT assays, transmission electron microscope, agarose gel electrophoresis and flow cytometry. The immunohistochemistry was used to detect the expression of Bcl-2 and Bax gene. Results:Apigenin at different concentrations could inhibit the proliferation of human pancreatic carcinoma cell lines BxPC-3, and the inhibitive effect was dose-dependent. The cell cycle of pancreatic carcinoma cells was arrested at G2/M phase. The results of immunohistochemistry showed that the density of apigenin increased, and the expression of Bcl-2 gene was reduced gradually. At the same time the expression of Bax gene was enhanced. Conclusion: Apigenin could inhibit the proliferation of human pancreatic carcinoma cell lines BxPC-3 in vitro. The effect of apoptosis was accompanied with the expression of Bcl-2 decrease and Bax increase.

  5. The transcriptional coactivator DRIP/mediator complex is involved in vitamin D receptor function and regulates keratinocyte proliferation and differentiation.

    Oda, Yuko; Chalkley, Robert J; Burlingame, Alma L; Bikle, Daniel D

    2010-10-01

    Mediator is a multisubunit coactivator complex that facilitates transcription of nuclear receptors. We investigated the role of the mediator complex as a coactivator for vitamin D receptor (VDR) in keratinocytes. Using VDR affinity beads, the vitamin D receptor interacting protein (DRIP)/mediator complex was purified from primary keratinocytes, and its subunit composition was determined by mass spectrometry. The complex included core subunits, such as DRIP205/MED1 (MED1), that directly binds to VDR. Additional subunits were identified that are components of the RNA polymerase II complex. The functions of different mediator components were investigated by silencing its subunits. The core subunit MED1 facilitates VDR activity and regulating keratinocyte proliferation and differentiation. A newly described subunit MED21 also has a role in promoting keratinocyte proliferation and differentiation, whereas MED10 has an inhibitory role. Blocking MED1/MED21 expression caused hyperproliferation of keratinocytes, accompanied by increases in mRNA expression of the cell cycle regulator cyclin D1 and/or glioma-associated oncogene homolog. Blocking MED1 or MED21 expression also resulted in defects in calcium-induced keratinocyte differentiation, as indicated by decreased expression of differentiation markers and decreased translocation of E-cadherin to the membrane. These results show that keratinocytes use the transcriptional coactivator mediator to regulate VDR functions and control keratinocyte proliferation and differentiation.

  6. The SHH/Gli pathway is reactivated in reactive glia and drives proliferation in response to neurodegeneration-induced lesions.

    Pitter, Kenneth L; Tamagno, Ilaria; Feng, Xi; Ghosal, Kaushik; Amankulor, Nduka; Holland, Eric C; Hambardzumyan, Dolores

    2014-10-01

    In response to neurodegeneration, the adult mammalian brain activates a cellular cascade that results in reactive astrogliosis and microgliosis. The mechanism through which astrocytes become reactive and the physiological consequences of their activation in response to neurodegeneration is complex. While the activation and proliferation of astrocytes has been shown to occur during massive neuronal cell death, the functional relationship between these two events has not been clearly elucidated. Here we show that in response to kainic acid- (KA) induced neurodegeneration, the mitogen sonic hedgehog (SHH) is upregulated in reactive astrocytes. SHH activity peaks at 7 days and is accompanied by increased Gli activity and elevated proliferation in several cell types. To determine the functional role of SHH-Gli signaling following KA lesions, we used a pharmacological approach to show that SHH secreted by astrocytes drives the activation and proliferation of astrocytes and microglia. The consequences of SHH-Gli signaling in KA-induced lesions appear to be independent of the severity of neurodegeneration.

  7. Effect of praziquantel on human lymphocyte proliferation in vitro

    Odum, Niels; Theander, T G; Bygbjerg, I C

    1984-01-01

    The antischistosomal drugs tartar emetic and niridazole exert immunosuppression both in vitro and in vivo. In the present study the influence of praziquantel (Biltricide), a potent schistosomicidal drug, on human lymphocyte proliferation in vitro was investigated. Praziquantel 80 micrograms...... no suppressive effect on human lymphocyte proliferation in vitro....

  8. SIRT1 inhibits the mouse intestinal motility and epithelial proliferation

    SIRT1 inhibits the mouse intestinal motility and epithelial proliferation. Sirtuin 1 (SIRT1), a NAD+-dependent histone deacetylase, is involved in a wide array of cellular processes, including glucose homeostasis, energy metabolism, proliferation and apoptosis, and immune response. However, it is un...

  9. Tigecycline inhibits proliferation of Acanthamoeba castellanii.

    Jha, Bijay Kumar; Seo, Incheol; Kong, Hyun-Hee; Suh, Seong-Il; Suh, Min-Ho; Baek, Won-Ki

    2015-03-01

    Acanthamoeba is an opportunistic protozoan parasite responsible for different diseases in humans, such as granulomatous amoebic encephalitis and amoebic keratitis. Tigecycline, a third-generation tetracycline antibiotic, has potential activity to treat most of the antibiotic resistant bacterial infections. The effects of tigecycline in eukaryotic cells as well as parasites are less well studied. In the present study, we tested the effects of tigecycline on trophozoites of Acanthamoeba castellanii. The inhibitory effect of tigecycline on Acanthamoeba was determined by resazurin reduction and trypan blue exclusion assays. We found that tigecycline significantly inhibited the growth of Acanthamoeba (46.4 % inhibition at the concentration of 100 μM) without affecting cell viability and induction of encystation, whereas other tetracycline groups of antibiotics such as tetracycline and doxycycline showed no inhibitory effects. Furthermore, tigecycline decreased cellular adenosine triphosphate (ATP) level by 26 % than the control and increased mitochondrial mass, suggesting mitochondrial dysfunction in tigecycline-treated cells. These findings suggest that mitochondrial dysfunction with decreased ATP production might play an important mechanism of tigecycline in suppression of Acanthamoeba proliferation.

  10. Plant cell proliferation inside an inorganic host.

    Perullini, Mercedes; Rivero, María Mercedes; Jobbágy, Matías; Mentaberry, Alejandro; Bilmes, Sara A

    2007-01-10

    In recent years, much attention has been paid to plant cell culture as a tool for the production of secondary metabolites and the expression of recombinant proteins. Plant cell immobilization offers many advantages for biotechnological processes. However, the most extended matrices employed, such as calcium-alginate, cannot fully protect entrapped cells. Sol-gel chemistry of silicates has emerged as an outstanding strategy to obtain biomaterials in which living cells are truly protected. This field of research is rapidly developing and a large number of bacteria and yeast-entrapping ceramics have already been designed for different applications. But even mild thermal and chemical conditions employed in sol-gel synthesis may result harmful to cells of higher organisms. Here we present a method for the immobilization of plant cells that allows cell growth at cavities created inside a silica matrix. Plant cell proliferation was monitored for a 6-month period, at the end of which plant calli of more than 1 mm in diameter were observed inside the inorganic host. The resulting hybrid device had good mechanical stability and proved to be an effective barrier against biological contamination, suggesting that it could be employed for long-term plant cell entrapment applications.

  11. Intelligent hand-portable proliferation sensing system

    Dieckman, S.L.; Bostrom, G.A.; Waterfield, L.G.; Jendrzejczyk, J.A.; Ahuja, S.; Raptis, A.C.

    1997-08-01

    Argonne National Laboratory, with support from DOE`s Office of Nonproliferation and National Security, is currently developing an intelligent hand-portable sensor system. This system is designed specifically to support the intelligence community with the task of in-field sensing of nuclear proliferation and related activities. Based upon pulsed laser photo-ionization time-of-flight mass spectrometry technology, this novel sensing system is capable of quickly providing a molecular or atomic analysis of specimens. The system is capable of analyzing virtually any gas phase molecule, or molecule that can be induced into the gas phase by (for example) sample heating. This system has the unique advantages of providing unprecedented portability, excellent sensitivity, tremendous fieldability, and a high performance/cost ratio. The system will be capable of operating in a highly automated manner for on-site inspections, and easily modified for other applications such as perimeter monitoring aboard a plane or drone. The paper describes the sensing system.

  12. Nuclear SMAD2 Restrains Proliferation of Glioblastoma

    Yunhu Yu

    2015-03-01

    Full Text Available Aims: Although TGFβ receptor signaling has been shown to play a role in regulation of the growth and metastasis of glioblastoma multiforme (GBM, the downstream pathway through either SMAD2 or SMAD3 has not been elucidated. In this study, we investigate whether nuclear SMAD2 can restrain the proliferation of glioblastoma. Methods: A total of 23 resected specimens from GBM patients were collected for SMAD2 detection. Human GBM cell line A172, U87mg, D341m and Hs683 were maintained in Dulbecco's modified Eagle's medium and transfected with SMAD2 and SMAD3 shRNA plasmids. Gene expression was detected by RT-qPCR and Western and cell growth were detected by MTT assay. Results: Our results showed that the phosphorylated SMAD2 (pSMAD2, the nuclear and functional form of SMAD2 levels in GBM were significantly lower than the paired normal brain tissue in patients. Depletion of SMAD2, but not SMAD3, significantly abolished the inhibitory effects of TGFβ1 on the growth of GBM cells, possibly through pSMAD2-mediated increases in cell-cycle inhibitor, p27. Conclusion: Our data suggest that TGFβ/SMAD2 signaling cascades restrains growth of GBM.

  13. Proliferation of dinoflagellates in Kochi estuary, Kerala.

    Kumar, M Ratheesh; Vishnu, S Raj; Sudhanandh, V S; Faisal, A K; Shibu, R; Vimexen, V; Ajmal, K; Aneesh, K S; Antony, Sibin; Krishnan, Anoop K

    2014-09-01

    Phytoplankton community structure and dynamics of Kochi estuary (bar mouth) have been studied seasonally. Three seasonal samplings namely pre-monsoon, monsoon and post-monsoon were made, and a wide variation was observed in phytoplankton community with respect to nutrients and other physicochemical parameters. Contrary to other seasons, dinoflagellate cell density increased during pre-monsoon season though species diversity was less pronounced (D > 0.15). Peridinium oceanicum was the dominant dinoflagellate during pre-monsoon season. Significant fluctuation in three principal nutrients namely total nitrogen, total phosphorous and silicate were observed during pre-monsoon (TP 40 micromol l(-1) and SiO4 3.20 micromol l(-1), TN 27 micromol l(-1)). Salinity values were also found to be high during pre-monsoon ( > 25 psu). Study suggests that variation in salinity and nutrient concentration during transition of seasons could result in succession of species, thereby causing change in phytoplankton community structure. High salinity and nitrogen values along with low values of silicate and phosphorous resulted in proliferation of dinoflagellates during pre-monsoon season.

  14. Peroxisome Proliferator Activated Receptors and Lipoprotein Metabolism

    Sander Kersten

    2008-01-01

    Full Text Available Plasma lipoproteins are responsible for carrying triglycerides and cholesterol in the blood and ensuring their delivery to target organs. Regulation of lipoprotein metabolism takes place at numerous levels including via changes in gene transcription. An important group of transcription factors that mediates the effect of dietary fatty acids and certain drugs on plasma lipoproteins are the peroxisome proliferator activated receptors (PPARs. Three PPAR isotypes can be distinguished, all of which have a major role in regulating lipoprotein metabolism. PPARα is the molecular target for the fibrate class of drugs. Activation of PPARα in mice and humans markedly reduces hepatic triglyceride production and promotes plasma triglyceride clearance, leading to a clinically significant reduction in plasma triglyceride levels. In addition, plasma high-density lipoprotein (HDL-cholesterol levels are increased upon PPARα activation in humans. PPARγ is the molecular target for the thiazolidinedione class of drugs. Activation of PPARγ in mice and human is generally associated with a modest increase in plasma HDL-cholesterol and a decrease in plasma triglycerides. The latter effect is caused by an increase in lipoprotein lipase-dependent plasma triglyceride clearance. Analogous to PPARα, activation of PPARβ/δ leads to increased plasma HDL-cholesterol and decreased plasma triglyceride levels. In this paper, a fresh perspective on the relation between PPARs and lipoprotein metabolism is presented. The emphasis is on the physiological role of PPARs and the mechanisms underlying the effect of synthetic PPAR agonists on plasma lipoprotein levels.

  15. CSFV proliferation is associated with GBF1 and Rab2

    WULONG LIANG; MINPING ZHENG; CHANGLEI BAO; YANMING ZHANG

    2017-03-01

    The Golgi apparatus and its resident proteins are utilized and regulated by viruses to facilitate their proliferation. Inthis study, we investigated Classical swine fever virus (CSFV) proliferation when the function of the Golgi wasdisturbed. Golgi function was disturbed using chemical inhibitors, namely, brefeldin A (BFA) and golgicide A (GCA),and RNA interfering targets, such as the Golgi-specific BFA-resistance guanine nucleotide exchange factor 1 (GBF1)and Rab2 GTPases. CSFV proliferation was significantly inhibited during RNA replication and viral particlegeneration after BFA and GCA treatment. CSFV multiplication dynamics were retarded in cells transfected withGBF1 and Rab2 shRNA. Furthermore, CSFV proliferation was promoted by GBF1 and Rab2 overexpression using alentiviral system. Hence, Golgi function is important for CSFV multiplication, and GBF1 and Rab2 participate inCSFV proliferation. Further studies must investigate Golgi-resident proteins to elucidate the mechanism underlyingCSFV replication.

  16. Senegenin promotes in vitro proliferation of human neural progenitor cells

    Fang Shi; Zhigang Liang; Zixuan Guo; Ran Li; Fen Yu; Zhanjun Zhang; Xuan Wang; Xiaomin Wang

    2011-01-01

    Senegenin, an effective component of Polygala tenuifolia root extract, promotes proliferation and differentiation of neural progenitor cells in the hippocampus.However, the effects of senegenin on mesencephalon-derived neural progenitor cells remain poorly understood.Cells from a ventral mesencephalon neural progenitor cell line (ReNcell VM) were utilized as models for pharmaceutical screening.The effects of various senegenin concentrations on cell proliferation were analyzed,demonstrating that high senegenin concentrations (5, 10, 50, and 100 pmo/L), particularly 50 pmol/L, significantly promoted proliferation of ReNcell VM cells.In the mitogen-activated protein kinase signal transduction pathway, senegenin significantly increased phosphorylation levels of extracellular signal-regulated kinases.Moreover, cell proliferation was suppressed by extracellular signal-regulated kinase inhibitors.Results suggested that senegenin contributed to in vitro proliferation of human neural progenitor cells by upregulating phosphorylation of extracellular signal-regulated kinase.

  17. Steroid-responsive thalamic lesions accompanying microbleeds in a case of Hashimoto's encephalopathy with autoantibodies against α-enolase.

    Yamaguchi, Yoshitaka; Wada, Manabu; Tanji, Haruko; Kurokawa, Katsuro; Kawanami, Toru; Tanji, Kazuyo; Yoneda, Makoto; Kato, Takeo

    2013-01-01

    A 67-year-old man receiving antithrombotic therapy developed rapidly progressive amnesia. T2-weighted images of brain MRI revealed hyperintense lesions in the bilateral thalami accompanied by microbleeds. Antithyroglobulin antibodies and autoantibodies against the N-terminal of α-enolase (NAE) were identified in the patient's serum; therefore, Hashimoto's encephalopathy (HE) was suspected. Although the patient's radiological findings improved following steroid therapy, his symptoms did not improve, possibly due to increased thalamic microbleeds. Because anti-NAE antibodies are possibly associated with vasculitis, HE accompanied by anti-NAE antibodies may be exacerbated by microbleeds in patients receiving antithrombotic therapy.

  18. Acute Exacerbations of Chronic Hepatitis B Are Accompanied by Decline of Core Antigen-Specific Regulatory T-Cell Frequencies: Implications for Successful Anti-HBV Treatments

    Sun-Lung Tsai

    2007-11-01

    Full Text Available Background and Aims: Acute exacerbations (AEs of perinatally-acquired chronic hepatitis B (CHB are accompanied by increased T cell responses to hepatitis B core and e antigens (HBcAg & HBeAg. Naturally-arising forkhead transcription factor Foxp3 (forkhead box p3-expressing CD4+CD25+ regulatory T (Treg cells are thought to be important in the control of infectious diseases. This study aimed to investigate whether HBcAg-specific Treg cells play a role in modulating spontaneous AEs and in influencing the outcome of anti-hepatitis B virus (HBV treatments.Methods: The SYFPEITHI scoring system was employed to predict epitope peptides on HBcAg overlapping with HBeAg for the construction of peptide-HLA class II tetramers to measure HBcAg-specific Treg cell frequencies (Treg f . Results: HBcAg-specific Treg f declined significantly in association with increased HBcAg-specific cytotoxic T lymphocyte frequencies during spontaneous AEs without treatment. Vigorous in vitro expansion of CD4+CD25+ Treg cells from CHB patients responding to HBcAg and/or its peptides plus interleukin-2 (IL-2 was consistently detected. Depletion of Treg cells from peripheral blood mononuclear cells enhanced proliferation to HBcAg. In contrast, patients with AEs who received anti-HBV treatments with oral nucleoside analogues or interferon-alpha injection revealed that more post-treatment increase of HBcAg-specific Treg f correlated with a higher sustained remission rate to the therapy.Conclusions: These data indicate that HBcAg-specific Treg cells from perinatally-acquired CHB patients are proliferative to HBcAg and its peptides and exhibit suppressor activity. They play a crucial role in modulating spontaneous AEs and in successful anti-HBV treatments.

  19. Colonic inflammation accompanies an increase of β-catenin signaling and Lachnospiraceae/Streptococcaceae bacteria in the hind gut of high-fat diet-fed mice.

    Zeng, Huawei; Ishaq, Suzanne L; Zhao, Feng-Qi; Wright, André-Denis G

    2016-09-01

    Consumption of an obesigenic/high-fat diet (HFD) is associated with a high colon cancer risk and may alter the gut microbiota. To test the hypothesis that long-term high-fat (HF) feeding accelerates inflammatory process and changes gut microbiome composition, C57BL/6 mice were fed HFD (45% energy) or a low-fat (LF) diet (10% energy) for 36 weeks. At the end of the study, body weights in the HF group were 35% greater than those in the LF group. These changes were associated with dramatic increases in body fat composition, inflammatory cell infiltration, inducible nitric oxide synthase protein concentration and cell proliferation marker (Ki67) in ileum and colon. Similarly, β-catenin expression was increased in colon (but not ileum). Consistent with gut inflammation phenotype, we also found that plasma leptin, interleukin 6 and tumor necrosis factor α concentrations were also elevated in mice fed the HFD, indicative of chronic inflammation. Fecal DNA was extracted and the V1-V3 hypervariable region of the microbial 16S rRNA gene was amplified using primers suitable for 454 pyrosequencing. Compared to the LF group, the HF group had high proportions of bacteria from the family Lachnospiraceae/Streptococcaceae, which is known to be involved in the development of metabolic disorders, diabetes and colon cancer. Taken together, our data demonstrate, for the first time, that long-term HF consumption not only increases inflammatory status but also accompanies an increase of colonic β-catenin signaling and Lachnospiraceae/Streptococcaceae bacteria in the hind gut of C57BL/6 mice.

  20. The Comparison of the Effect of Block Flute Accompanied Song Teaching with Multi-Sound Notation and Vocalization Program Accompanied Song Teaching on the Success of Students' Song Learning Behavior

    Saktanli, S. Cem

    2011-01-01

    This experimental study was done to see if using computer supported notation and vocalization program for teaching songs instead of using block flute accompanied song teaching has any significant effect on students' singing behavior. The study group is composed of the 5th, 6th and 7th graders of 2008-2009 educational term in T.O.K.I. Yahya Kemal…

  1. Reactivation from latency displays HIV particle budding at plasma membrane, accompanying CD44 upregulation and recruitment

    Sano Kouichi

    2009-07-01

    Full Text Available Abstract Background It has been accepted that HIV buds from the cell surface in T lymphocytes, whereas in macrophages it buds into intracellular endosomes. Recent studies, on the other hand, suggest that HIV preferentially buds from the cell surface even in monocytic cells. However, most studies are based on observations in acutely infected cells and little is known about HIV budding concomitant with reactivation from latency. Such studies would provide a better understanding of a reservoir for HIV. Results We observed HIV budding in latently infected T lymphocytic and monocytic cell lines following TNF-α stimulation and examined the upregulation of host factors that may be involved in particle production. Electron microscopy analysis revealed that reactivation of latently infected J1.1 cells (latently infected Jurkat cells with HIV-1 and U1 cells (latently infected U937 cells with HIV-1 displayed HIV particle budding predominantly at the plasma membrane, a morphology that is similar to particle budding in acutely infected Jurkat and U937 cells. When mRNA expression levels were quantified by qRT-PCR, we found that particle production from reactivated J1.1 and U1 cells was accompanied by CD44 upregulation. This upregulation was similarly observed when Jurkat and U937 cells were acutely infected with HIV-1 but not when just stimulated with TNF-α, suggesting that CD44 upregulation was linked with HIV production but not with cell stimulation. The molecules in endocytic pathways such as CD63 and HRS were also upregulated when U1 cells were reactivated and U937 cells were acutely infected with HIV-1. Confocal microscopy revealed that these upregulated host molecules were recruited to and accumulated at the sites where mature particles were formed at the plasma membrane. Conclusion Our study indicates that HIV particles are budded at the plasma membrane upon reactivation from latency, a morphology that is similar to particle budding in acute

  2. Peroxisome proliferator-activated receptors for hypertension

    Daisuke; Usuda; Tsugiyasu; Kanda

    2014-01-01

    Peroxisome proliferator-activated receptors(PPARs) are ligand-activated transcription factors belonging to the nuclear receptor superfamily, which is composed of four members encoded by distinct genes(α, β, γ, and δ). The genes undergo transactivation or transrepression under specific mechanisms that lead to the induction or repression of target gene expression. As is the case with other nuclear receptors, all four PPAR isoforms contain five or six structural regions in four functional domains; namely, A/B, C, D, and E/F. PPARs have many functions, particularly functions involving control of vascular tone, inflammation, and energy homeostasis, and are, therefore, important targets for hypertension, obesity, obesity-induced inflammation, and metabolic syndrome in general. Hence, PPARs also represent drug targets, and PPARα and PPARγ agonists are used clinically in the treatment of dyslipidemia and type 2 diabetes mellitus, respectively. Because of their pleiotropic effects, they have been identified as active in a number of diseases and are targets for the development of a broad range of therapies for a variety of diseases. It is likely that the range of PPARγ agonist therapeutic actions will result in novel approaches to lifestyle and other diseases. The combination of PPARs with reagents or with other cardiovascular drugs, such as diuretics and angiotensin Ⅱ receptor blockers, should be studied.This article provides a review of PPAR isoform characteristics, a discussion of progress in our understanding of the biological actions of PPARs, and a summary of PPAR agonist development for patient management. We also include a summary of the experimental and clinical evidence obtained from animal studies and clinical trials conducted to evaluate the usefulness and effectiveness of PPAR agonists in the treatment of lifestyle-related diseases.

  3. Accompany: Acceptable robotiCs COMPanions for AgeiNG Years — Multidimensional aspects of human-system interactions

    F. Amirabdollahian; R. op den Akker; S. Bedaf; R. Bormann; H. Draper; V. Evers; G.J. Gelderblom; C. Gutierrez Ruiz; D. Hewson; N. Hu; I. Iacono; K.L. Koay; B. Kröse; P. Marti; H. Michel; H. Prevot-Huille; U. Reiser; J. Saunders; T. Sorell; K. Dautenhahn

    2013-01-01

    Email Print Request Permissions Save to Project With changes in life expectancy across the world, technologies enhancing well-being of individuals, specifically for older people, are subject to a new stream of research and development. In this paper we present the ACCOMPANY project, a pan-European p

  4. Teacher Education Students' Perceptions of the Value of Handouts Accompanying Teacher Educators' Computer-Generated Slide Presentations

    Yilmazel-Sahin, Yesim; Oxford, Rebecca L.

    2010-01-01

    This mixed-methods study used interviews and a questionnaire to investigate the perceptions of 304 teacher education students regarding the learning-related value of handouts accompanying teacher educators' computer-generated slide presentations. The extent to which graduate and undergraduate students differed in their perceptions was also…

  5. ACCOMPANY: ACceptable robotiCs COMPanions for AgeiNg Years: multidimensional aspects of human-system interactions

    Amirabdollahian, Farshid; Akker, op den Rieks; Bedaf, Sandra; Bormann, Richard; Draper, Heather; Gelderblom, Gert Jan; Gutierrez Ruiz, Carolina; Hewson, David; Iacono, Iolanda; Koay, Kheng Lee; Krose, Ben; Marti, Patrizia; Prevot-Huille, Helene; Reiser, Ulrich; Saunders, Joe; Sorell, Tom; Dautenhahn, Kerstin

    2013-01-01

    With changes in life expectancy across the world, technologies enhancing well-being of individuals, specifically for older people, are subject to a new stream of research and development. In this paper we present the ACCOMPANY project, a pan-European project which focuses on home companion technolog

  6. 30 CFR 250.260 - What Coastal Zone Management Act (CZMA) information must accompany the DPP or DOCD?

    2010-07-01

    ...) information must accompany the DPP or DOCD? 250.260 Section 250.260 Mineral Resources MINERALS MANAGEMENT... Operations Coordination Documents (docd) § 250.260 What Coastal Zone Management Act (CZMA) information must.... “Information” as required by 15 CFR 930.76(a) and 15 CFR 930.58(a)(2)) and “Analysis” as required by 15 CFR...

  7. Understanding Pretend Play. A Guide for Parents and Teachers To Accompany the Documentary Video "When a Child Pretends."

    Drucker, Jan; Franklin, Margery B.; Wilford, Sara

    Pretend play is often undervalued and ignored. This videotape and accompanying booklet highlight how the dramatic scenarios, microworlds, storytelling, and block building of pretend play provide young children the opportunity to develop skills for a lifetime of intellectual, social, emotional, and creative development. The booklet describes the…

  8. Limitation of activities of daily living accompanying reduced neck mobility after laminoplasty preserving or reattaching the semispinalis cervicis into axis.

    Takeuchi, Kazunari; Yokoyama, Toru; Ono, Atsushi; Numasawa, Takuya; Wada, Kanichiro; Itabashi, Taito; Toh, Satoshi

    2008-03-01

    Although difficulties with neck mobility often interfere with patients' activities of daily living (ADL) after cervical laminoplasty, there was no detailed study on the relation between the limitations of ADL accompanying postoperative reduced neck mobility and the cervical posterior approach. The aim of this study was to compare retrospectively the frequency of limitations of ADL accompanying neck mobility after laminoplasty preserving the semispinalis cervicis inserted into the C2 spinous process with that after laminoplasty reattaching the muscle to C2. Forty-nine patients after C4-C7 laminoplasty with C3 laminectomy preserving the semispinalis cervicis inserted into C2 (Group A) and 24 patients after C3-C7 laminoplasty reattaching the muscle (Group B) were evaluated. The frequency of postoperative limitations of ADL accompanying each of three neck movements of extension, flexion and rotation were investigated. The postoperative O-C7 angles at extension and flexion was measured on lateral extension and flexion radiographs of the cervical spine, respectively. The postoperative cervical range of motion in rotation was measured in the cranial view using a digital camera. Frequency of limitations of ADL accompanying extension was lower (P = 0.037) in Group A (2%) than in Group B (17%). Frequency of limitations of ADL accompanying flexion was similar in Group A (8%) and Group B (4%). Frequency of limitations of ADL accompanying rotation was lower (P = 0.031) in Group A (12%) than in Group B (33%). Average O-C7 angle at extension was significantly larger (P = 0.002) in Group A (147 degrees ) than in Group B (136 degrees ). Average O-C7 angle at flexion was similar in Group A (93 degrees ) and Group B (91 degrees ). Average range of motion in rotation was significantly larger (P = 0.004) in Group A (110 degrees ) than in Group B (91 degrees ). This retrospective study suggested that the frequency of limitations of ADL accompanying neck extension or rotation was lower

  9. Hypoxia promotes adipose-derived stem cell proliferation via VEGF

    Phuc Van Pham

    2016-01-01

    Full Text Available Adipose-derived stem cells (ADSCs are a promising mesenchymal stem cell source with therapeutic applications. Recent studies have shown that ADSCs could be expanded in vitro without phenotype changes. This study aimed to evaluate the effect of hypoxia on ADSC proliferation in vitro and to determine the role of vascular endothelial growth factor (VEGF in ADSC proliferation. ADSCs were selectively cultured from the stromal vascular fraction obtained from adipose tissue in DMEM/F12 medium supplemented with 10% fetal bovine serum and 1% antibiotic-antimycotic. ADSCs were cultured under two conditions: hypoxia (5% O2 and normal oxygen (21% O2. The effects of the oxygen concentration on cell proliferation were examined by cell cycle and doubling time. The expression of VEGF was evaluated by the ELISA assay. The role of VEGF in ADSC proliferation was studied by neutralizing VEGF with anti-VEGF monoclonal antibodies. We found that the ADSC proliferation rate was significantly higher under hypoxia compared with normoxia. In hypoxia, ADSCs also triggered VEGF expression. However, neutralizing VEGF with anti-VEGF monoclonal antibodies significantly reduced the proliferation rate. These results suggest that hypoxia stimulated ADSC proliferation in association with VEGF production. [Biomed Res Ther 2016; 3(1.000: 476-482

  10. Utility of Social Modeling for Proliferation Assessment - Preliminary Assessment

    Coles, Garill A.; Gastelum, Zoe N.; Brothers, Alan J.; Thompson, Sandra E.

    2009-06-01

    This Preliminary Assessment draft report will present the results of a literature search and preliminary assessment of the body of research, analysis methods, models and data deemed to be relevant to the Utility of Social Modeling for Proliferation Assessment research. This report will provide: 1) a description of the problem space and the kinds of information pertinent to the problem space, 2) a discussion of key relevant or representative literature, 3) a discussion of models and modeling approaches judged to be potentially useful to the research, and 4) the next steps of this research that will be pursued based on this preliminary assessment. This draft report represents a technical deliverable for the NA-22 Simulations, Algorithms, and Modeling (SAM) program. Specifically this draft report is the Task 1 deliverable for project PL09-UtilSocial-PD06, Utility of Social Modeling for Proliferation Assessment. This project investigates non-traditional use of social and cultural information to improve nuclear proliferation assessment, including nonproliferation assessment, proliferation resistance assessments, safeguards assessments and other related studies. These assessments often use and create technical information about the State’s posture towards proliferation, the vulnerability of a nuclear energy system to an undesired event, and the effectiveness of safeguards. This project will find and fuse social and technical information by explicitly considering the role of cultural, social and behavioral factors relevant to proliferation. The aim of this research is to describe and demonstrate if and how social science modeling has utility in proliferation assessment.

  11. Protective effects of anisodamine on cigarette smoke extract-induced airway smooth muscle cell proliferation and tracheal contractility

    Xu, Guang-Ni; Yang, Kai; Xu, Zu-Peng; Zhu, Liang; Hou, Li-Na; Qi, Hong; Chen, Hong-Zhuan, E-mail: hongzhuan_chen@hotmail.com; Cui, Yong-Yao, E-mail: yongyaocui@yahoo.com.cn

    2012-07-01

    Anisodamine, an antagonist of muscarinic acetylcholine receptors (mAChRs), has been used therapeutically to improve smooth muscle function, including microvascular, intestinal and airway spasms. Our previous studies have revealed that airway hyper-reactivity could be prevented by anisodamine. However, whether anisodamine prevents smoking-induced airway smooth muscle (ASM) cell proliferation remained unclear. In this study, a primary culture of rat ASM cells was used to evaluate an ASM phenotype through the ability of the cells to proliferate and express contractile proteins in response to cigarette smoke extract (CSE) and intervention of anisodamine. Our results showed that CSE resulted in an increase in cyclin D1 expression concomitant with the G0/G1-to-S phase transition, and high expression of M2 and M3. Functional studies showed that tracheal hyper-contractility accompanied contractile marker α-SMA high-expression. These changes, which occur only after CSE stimulation, were prevented and reversed by anisodamine, and CSE-induced cyclin D1 expression was significantly inhibited by anisodamine and the specific inhibitor U0126, BAY11-7082 and LY294002. Thus, we concluded that the protective and reversal effects and mechanism of anisodamine on CSE-induced events might involve, at least partially, the ERK, Akt and NF-κB signaling pathways associated with cyclin D1 via mAChRs. Our study validated that anisodamine intervention on ASM cells may contribute to anti-remodeling properties other than bronchodilation. -- Highlights: ► CSE induces tracheal cell proliferation, hyper-contractility and α-SMA expression. ► Anisodamine reverses CSE-induced tracheal hyper-contractility and cell proliferation. ► ERK, PI3K, and NF-κB pathways and cyclin D1 contribute to the reversal effect.

  12. Effect of pyrimethamine and sulphadoxine on human lymphocyte proliferation

    Bygbjerg, I C; Odum, Niels; Theander, T G

    1986-01-01

    in concentrations 10 times higher than serum values obtained in clinical practice inhibited lymphocyte proliferation irreversibly. PYR in concentrations corresponding to clinical practice quickly and irreversibly suppressed the proliferation of PWM-stimulated cells, and more slowly the proliferation of PPD....... Sulphadoxine (SDX), added in vitro, had no effect on the lymphocytes, while SDX plus PYR had the same effect as PYR alone. Oral intake of SDX plus PYR (Fansidar) also blocked the thymidine synthesis of mitogen-stimulated lymphocytes. The possible consequences of the findings for the use of PYR in malaria...

  13. The possibility of life proliferation from Enceladus

    Czechowski, Leszek

    2016-04-01

    Introduction: Enceladus is a medium-sized icy satellite (MIS) of Saturn. MIS are built of mixtures of rocks and ices. Enceladus with its radius of 250 km is one of the smallest of MIS, however, it is geologically active. According to [1]: "For life to have emerged […] on the early Earth, a sustained source of chemically transducible energy was essential. The serpentinization process is emerging as an increasingly likely source of that energy. Serpentinization of ultramafic crust would have continuously supplied hydrogen, methane, […] to off-ridge alkaline hydrothermal springs that interfaced with the metal-rich carbonic Hadean Ocean" (see also [2]). We consider here conditions for origin of life in early Enceladus and possible proliferation of the life from this satellite to the rest of Solar System. Mass of serpentinite: The serpentinization on the Earth is found in neovolcanic zones along mid-oceanic spreading centers. However, only in small part of them the hydrothermal activity really occurs. After [3] we consider the following reaction: Mg2SiO4 + MgSiO3 + 2H2O -> Mg3Si2O5(OH)4 . This reaction releases 241 000 J per kg of serpentine produced. Simple calculations (e.g. [4]) indicate that mass fraction of silicatesfmas in Enceladus is ˜0.646, hence the total mass of its silicate is ˜6.97 1019 kg. [4] found that the early core in Enceladus was a relatively cold structure built from loosely packed grains with water between them. At that time, there was not mechanism of removing the water. Since rocks are permeable up to the pressure of ˜300 MPa then the entire core of Enceladus was probably permeable for liquids. This could lead to formation of extensive hydrothermal convective systems. T-p conditions in Enceladus: The pressure in the center of Enceladus is ˜2.3 107 Pa that corresponds to pressure on the depth 2300 m in a terrestrial ocean. The evolution of temperature in the Enceladus interior for the first a few hundreds Myr is considered by [4]. If

  14. TRPM7 channel regulates PDGF-BB-induced proliferation of hepatic stellate cells via PI3K and ERK pathways

    Fang, Ling, E-mail: fangling_1984@126.com; Zhan, Shuxiang; Huang, Cheng; Cheng, Xi; Lv, Xiongwen; Si, Hongfang; Li, Jun, E-mail: lj@ahmu.edu.cn

    2013-11-01

    TRPM7, a non-selective cation channel of the TRP channel superfamily, is implicated in diverse physiological and pathological processes including cell proliferation. Recently, TRPM7 has been reported in hepatic stellate cells (HSCs). Here, we investigated the contribution role of TRPM7 in activated HSC-T6 cell (a rat hepatic stellate cell line) proliferation. TRPM7 mRNA and protein were measured by RT-PCR and Western blot in rat model of liver fibrosis in vivo and PDGF-BB-activated HSC-T6 cells in vitro. Both mRNA and protein of TRPM7 were dramatically increased in CCl{sub 4}-treated rat livers. Stimulation of HSC-T6 cells with PDGF-BB resulted in a time-dependent increase of TRPM7 mRNA and protein. However, PDGF-BB-induced HSC-T6 cell proliferation was inhibited by non-specific TRPM7 blocker 2-aminoethoxydiphenyl borate (2-APB) or synthetic siRNA targeting TRPM7, and this was accompanied by downregulation of cell cycle proteins, cyclin D1, PCNA and CDK4. Blockade of TRPM7 channels also attenuated PDGF-BB induced expression of myofibroblast markers as measured by the induction of α-SMA and Col1α1. Furthermore, the phosphorylation of ERK and AKT, associated with cell proliferation, decreased in TRPM7 deficient HSC-T6 cells. These observations suggested that TRPM7 channels contribute to perpetuated fibroblast activation and proliferation of PDGF-BB induced HSC-T6 cells via the activation of ERK and PI3K pathways. Therefore, TRPM7 may constitute a useful target for the treatment of liver fibrosis. - Highlights: • Upregulation of TRPM7 mRNA and protein in the fibrotic livers from CCl{sub 4}-treated rats. • Increasing expression of TRPM7 mRNA and protein during HSC activation. • Blockade of TRPM7 inhibited the PDGF-BB induced proliferation of HSC-T6 cells. • Blockade of TRPM7 decreased α-SMA and Col1α1 expressions in activated HSC-T6 cells. • TRPM7 up-regulation contributes to the activation of ERK and AKT pathways.

  15. Proliferation of massive destruction weapons: fantasy or reality?; La proliferation des armes de destruction massive: fantasme ou realite?

    Duval, M

    2001-09-01

    This article evaluates the threat of massive destruction weapons (nuclear, chemical, biological) for Europe and recalls the existing safeguards against the different forms of nuclear proliferation: legal (non-proliferation treaty (NPT), comprehensive nuclear test ban treaty (CTBT), fissile material cut off treaty (FMCT) etc..), technical (fabrication of fissile materials, delays). However, all these safeguards can be overcome as proven by the activities of some countries. The situation of proliferation for the other type of massive destruction weapons is presented too. (J.S.)

  16. Proliferation of maize (Zea mays L.) roots in response to localized supply of nitrate

    Granato, T. C.; Raper, C. D. Jr; Raper CD, J. r. (Principal Investigator)

    1989-01-01

    Maize (Zea mays L.) plants with two primary nodal root axes were grown for 8 d in flowing nutrient culture with each axis independently supplied with NO3-. Dry matter accumulation by roots was similar whether 1.0 mol m-3 NO3- was supplied to one or both axes. When NO3- was supplied to only one axis, however, accumulation of dry matter within the root system was significantly greater in the axis supplied with NO3-. The increased dry matter accumulation by the +N-treated axis was attributable entirely to increased density and growth of lateral branches and not to a difference in growth of the primary axis. Proliferation of lateral branches for the +N axis was associated with the capacity for in situ reduction and utilization of a portion of the absorbed NO3-, especially in the apical region where lateral primordia are initiated. Although reduced nitrogen was translocated to the -N axis, concentrations in the -N axis remained significantly lower than in the +N axis. The concentration of reduced nitrogen, as well as in vitro NO3- reductase activity, was greater in apical than in more basal regions of the +N axis. The enhanced proliferation of lateral branches in the +N axis was accompanied by an increase in total respiration rate of the axis. Part of the increased respiration was attributable to increased mass of roots. The specific respiration rate (micromoles CO2 evolved per hour per gram root dry weight) was also greater for the +N than for the -N axis. If respiration rate is taken as representative of sink demand, stimulation of initiation and growth of laterals by in situ utilization of a localized exogenous supply of NO3- establishes an increased sink demand through enhanced metabolic activity and the increased partitioning of assimilates to the +N axis responds to the difference in sink demand between +N and -N axes.

  17. Myopericytoma proliferating in an unusual anastomosing multinodular fashion.

    Inoue, Takuya; Misago, Noriyuki; Asami, Akihiko; Tokunaga, Osamu; Narisawa, Yutaka

    2016-05-01

    We herein describe a case of myopericytoma that proliferated in an unusual fashion. Myopericytoma is described as a group of rare, benign, dermal or subcutaneous tumors that are characterized histologically by a striking, concentric, perivascular proliferation of spindle cells and showing apparent differentiation towards perivascular myoid cells. Myopericytoma forms a morphological continuum with myofibroma/myofibromatosis, glomus tumor and angioleiomyoma. The patient was a 64-year-old woman who demonstrated a recurrent ulcer on an atrophic plaque on her left shin. A histopathological examination of the plaque demonstrated that tumor cells proliferated in an anastomosing multinodular fashion along the vessels in the dermis and subcutaneous tissue. In those nodules, there were numerous, small, concentric proliferations of myoid-appearing spindle cells around small vascular lumina. The present case is an unusual example of myopericytoma, manifesting in a characteristic anastomosing, multinodular, infiltrating fashion.

  18. Spontaneous Proliferation in Organotypic Cultures of Mouse Cochleae

    DING Da-lian; WANG Jian; YU Zhi-ping; JIANG Hai-yan; WANG Ping; Richard Salvi

    2008-01-01

    Cells in mammalian cochleae virtually stop proliferation and exit cellular circle before birth. Consequently, hair cells and spiral ganglion neurons destroyed by ototoxic factors cannot be replaced through proliferative regeneration. However, substantial proliferation occurs in organotypic cultures of cochleae from postnatal mice. In the present study, we studied the time course of proliferative growth in cultures of mouse cochlea explants obtained from up to 12 postnatal days. The mitotic nature of this growth was confirmed by bromodeoxyuridine (BrdU) staining and expression of proliferation cell nuclear antigen (PCNA) evaluated with real-time quantitative polymerase chain reaction(RT-PCR). Similar growth time course was found in the cochlear explants of different postnatal ages. The new growth reached its maximum at around 2 days in culture followed by a slow-down, and virtually stopped after 5 days of culture. The possible mechanisms and the significance of this proliferation are discussed.

  19. Inhibitive Effects of Quercetin on Rabbit Tenon Capsule Fibroblasts Proliferation

    Su Liu; Lin Chen

    2005-01-01

    Purpose:To study the inhibitive effects of quercetin (QU) on the fibroblasts proliferation of rabbit Tenon's capsule and its mechanism.Methods: Cultured fibroblasts were exposed to different concentrations of QU solution and investigated by microculture tetrazolium (MTT) assay. The effect of QU was obser ved on cells cycle using the flow cytometer. Besults: QU can suppress the proliferation of rabbit Tenon's capsule fibroblasts in vitro and show a dose-time dependent tendency.Flow cytometer results showed 26.92% cell increase in G1 phase, 23.50% decrease in S phase and 3.42% decrease in G2 phase.Conclusions: QU can suppress the proliferation of rabbit Tenon's capsule fibroblasts in vitro and show a dose-time dependent tendency. QU may effect all phase of cell cycle and inhibit cell proliferation by inhibiting G1 phase transitting to S phase and G2 phase.

  20. EFFECT OF TASPINE ON WOUND HEALING AND FIBROBLAST PROLIFERATION

    Dong Yalin; He Langchong; Chen Fang

    2005-01-01

    Objective To study the effect and mechanism of taspine on wound healing and fibroblast proliferation. Methods The effect of taspine on skin wound was observed in vivo. The different concentration of taspine hydrochloride was added to L929 fibroblast cultivated in vitro, and lactate dehydrogenase was detected and MTT method was applied to observe effect of taspine on fibroblast proliferation. Results The local application of taspine 3 mg/Ml and 1.5 mg/mL accelerated the healing of skin wounded. In vitro, 0.01~0.5 μg/mL of taspine hydrochloride showed no effect on the change of lactate dehydrogenase activity and fibroblast proliferation. Conclusion Taspine is a kind of active alkaloid from leontice robustum which can enhance wound healing, its mechanism on wound healing is not by means of accelerating the proliferation of fibroblast, other mechanisms are necessary for being further studied.

  1. Granulosa cell proliferation differentiation and its role in follicular development

    LU Cuiling; YANG Wei; HU Zhaoyuan; LIU Yixun

    2005-01-01

    Granuiosa cells (GCs) are the most important cells in the ovary that undergo serious changes morphologically and physiologically during the processes of follicular proliferation, differentiation, ovulation, lutenization and atresia. Oocyte (OC) directs GC proliferation and differentiation, while GCs influence OC maturation. Many ovarian factors are involved in the regulation of these processes via different molecular mechanisms and signal pathways. P38MAPK can selectively regulate steroidogenesis in GCs controlled by FSH; Transcript factors LRH-1 and DAX-1 play an important role in this process; FSH induces GC prolfferation and differentiation by stimulating PCNA and StAR expression and steroidogenesis. Activated ERK1/2 signal pathway may be involved in the FSH-regulated GC proliferation and differentiation. Therefore, GC is an ideal model for studying cell proliferation, differentiation and interaction,as well as signal transduction. This review briefly summarizes the latest data in the literature, including the results achieved in our laboratory.

  2. Proliferation/quiescence: the controversial "aller-retour"

    Sagot Isabelle

    2011-05-01

    Full Text Available Abstract The vast majority of cells, from prokaryotes up to vertebrate organisms, spend most of their time in quiescence, a state defined as a temporary and reversible absence of proliferation. Establishing the quiescent state while maintaining the capacity to re-enter the proliferation cycle are critical for cell survival and must be tightly orchestrated to avoid pathological proliferation. Hence, studying the biology of quiescent cells is an exciting research field. Taking advantage of technical progress in genomic, transcriptomic and metabolomic, the nature of transitions between proliferation and quiescence have been recently re-visited in budding yeast. Together with new findings in cell biology, these studies resuscitate an old demon in the field: the controversial existence of a "quiescence program".

  3. Arrest of cytoplasmic streaming induces algal proliferation in green paramecia.

    Toshiyuki Takahashi

    Full Text Available A green ciliate Paramecium bursaria, bearing several hundreds of endosymbiotic algae, demonstrates rotational microtubule-based cytoplasmic streaming, in which cytoplasmic granules and endosymbiotic algae flow in a constant direction. However, its physiological significance is still unknown. We investigated physiological roles of cytoplasmic streaming in P. bursaria through host cell cycle using video-microscopy. Here, we found that cytoplasmic streaming was arrested in dividing green paramecia and the endosymbiotic algae proliferated only during the arrest of cytoplasmic streaming. Interestingly, arrest of cytoplasmic streaming with pressure or a microtubule drug also induced proliferation of endosymbiotic algae independently of host cell cycle. Thus, cytoplasmic streaming may control the algal proliferation in P. bursaria. Furthermore, confocal microscopic observation revealed that a division septum was formed in the constricted area of a dividing paramecium, producing arrest of cytoplasmic streaming. This is a first report to suggest that cytoplasmic streaming controls proliferation of eukaryotic cells.

  4. Mechanical stimulation increases proliferation, differentiation and protein expression in culture

    Grossi, Alberto; Yadav, Kavita; Lawson, Moira Ann

    2007-01-01

    Myogenesis is a complex sequence of events, including the irreversible transition from the proliferation-competent myoblast stage into fused, multinucleated myotubes. Myogenic differentiation is regulated by positive and negative signals from surrounding tissues. Stimulation due to stretch- or load...

  5. Imaging Macrophage and Hematopoietic Progenitor Proliferation in Atherosclerosis

    Ye, Yu-Xiang; Calcagno, Claudia; Binderup, Tina

    2015-01-01

    RATIONALE: Local plaque macrophage proliferation and monocyte production in hematopoietic organs promote progression of atherosclerosis. Therefore, noninvasive imaging of proliferation could serve as a biomarker and monitor therapeutic intervention. OBJECTIVE: To explore (18)F-FLT positron emission...... tomography-computed tomography imaging of cell proliferation in atherosclerosis. METHODS AND RESULTS: (18)F-FLT positron emission tomography-computed tomography was performed in mice, rabbits, and humans with atherosclerosis. In apolipoprotein E knock out mice, increased (18)F-FLT signal was observed...... with atherosclerosis, (18)F-FLT signal significantly increased in the inflamed carotid artery and in the aorta. CONCLUSIONS: (18)F-FLT positron emission tomography imaging may serve as an imaging biomarker for cell proliferation in plaque and hematopoietic activity in individuals with atherosclerosis....

  6. On the National Characteristics of the Piano Accompani-ment Music by Li Yinghai%黎英海钢琴伴奏音乐的民族特色

    陈芳

    2014-01-01

    Mr. Li Yinghai is a celebrated composer and educator in Chinese modern and contemporary history of music, and his piano accompaniment music is of unique and distinctive artistic characteristics. This paper mainly analyzes the national charac-teristics of the piano accompaniment music by Li Yinghai, striv-ing to explore the characteristic of referring to Western composing techniques and absorbing Chinese national music elements in Mr. Li Yinghai's creation of piano accompaniment music.%黎英海先生是中国近现代音乐史上的著名作曲家、教育家,在他的钢琴创作领域中,钢琴伴奏音乐独具鲜明的艺术特色。本文主要对黎英海先生钢琴伴奏音乐的民族特色进行分析,力求对黎英海先生钢琴伴奏音乐创作在借鉴西方作曲技法与吸取中国民族音乐语言上的特点进行探究。

  7. BabA dependent binding of Helicobacter pylori to human gastric mucins cause aggregation that inhibits proliferation and is regulated via ArsS

    Skoog, Emma C.; Padra, Médea; Åberg, Anna; Gideonsson, Pär; Obi, Ikenna; Quintana-Hayashi, Macarena P.; Arnqvist, Anna; Lindén, Sara K.

    2017-01-01

    Mucins in the gastric mucus layer carry a range of glycan structures, which vary between individuals, can have antimicrobial effect or act as ligands for Helicobacter pylori. Mucins from various individuals and disease states modulate H. pylori proliferation and adhesin gene expression differently. Here we investigate the relationship between adhesin mediated binding, aggregation, proliferation and adhesin gene expression using human gastric mucins and synthetic adhesin ligand conjugates. By combining measurements of optical density, bacterial metabolic activity and live/dead stains, we could distinguish bacterial aggregation from viability changes, enabling elucidation of mechanisms behind the anti-prolific effects that mucins can have. Binding of H. pylori to Leb-glycoconjugates inhibited the proliferation of the bacteria in a BabA dependent manner, similarly to the effect of mucins carrying Leb. Furthermore, deletion of arsS lead to a decrease in binding to Leb-glycoconjugates and Leb-decorated mucins, accompanied by decreased aggregation and absence of anti-prolific effect of mucins and Leb-glycoconjugates. Inhibition of proliferation caused by adhesin dependent binding to mucins, and the subsequent aggregation suggests a new role of mucins in the host defense against H. pylori. This aggregating trait of mucins may be useful to incorporate into the design of adhesin inhibitors and other disease intervention molecules. PMID:28106125

  8. BabA dependent binding of Helicobacter pylori to human gastric mucins cause aggregation that inhibits proliferation and is regulated via ArsS.

    Skoog, Emma C; Padra, Médea; Åberg, Anna; Gideonsson, Pär; Obi, Ikenna; Quintana-Hayashi, Macarena P; Arnqvist, Anna; Lindén, Sara K

    2017-01-20

    Mucins in the gastric mucus layer carry a range of glycan structures, which vary between individuals, can have antimicrobial effect or act as ligands for Helicobacter pylori. Mucins from various individuals and disease states modulate H. pylori proliferation and adhesin gene expression differently. Here we investigate the relationship between adhesin mediated binding, aggregation, proliferation and adhesin gene expression using human gastric mucins and synthetic adhesin ligand conjugates. By combining measurements of optical density, bacterial metabolic activity and live/dead stains, we could distinguish bacterial aggregation from viability changes, enabling elucidation of mechanisms behind the anti-prolific effects that mucins can have. Binding of H. pylori to Le(b)-glycoconjugates inhibited the proliferation of the bacteria in a BabA dependent manner, similarly to the effect of mucins carrying Le(b). Furthermore, deletion of arsS lead to a decrease in binding to Le(b)-glycoconjugates and Le(b)-decorated mucins, accompanied by decreased aggregation and absence of anti-prolific effect of mucins and Le(b)-glycoconjugates. Inhibition of proliferation caused by adhesin dependent binding to mucins, and the subsequent aggregation suggests a new role of mucins in the host defense against H. pylori. This aggregating trait of mucins may be useful to incorporate into the design of adhesin inhibitors and other disease intervention molecules.

  9. Natural mixtures of persistent organic pollutants (POPs) suppress ovarian follicle development, liver vitellogenin immunostaining and hepatocyte proliferation in female zebrafish (Danio rerio)

    Kraugerud, Marianne, E-mail: Marianne.Kraugerud@nvh.no [Dept. of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Doughty, Richard William, E-mail: vetrwdoughty@yahoo.co.uk [Sundveien 22, 2015 Leirsund (Norway); Lyche, Jan L., E-mail: Jan.Lyche@nvh.no [Dept. of Food Safety and Infection Biology, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Berg, Vidar, E-mail: Vidar.Berg@nvh.no [Dept. of Food Safety and Infection Biology, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Tremoen, Nina H., E-mail: Nina.Hardnes@nvh.no [Dept. of Production Animal Clinical Sciences, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Alestrom, Peter, E-mail: Peter.Alestrom@nvh.no [Dept. of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Aleksandersen, Mona, E-mail: Mona.Aleksandersen@nvh.no [Dept. of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway); Ropstad, Erik, E-mail: Erik.Ropstad@nvh.no [Dept. of Production Animal Clinical Sciences, Norwegian School of Veterinary Science, POB 8146 Dep., 0033 Oslo (Norway)

    2012-07-15

    Persistent organic pollutants such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and dichlorodiphenyltrichloroethane (DDT) are present in high concentrations in livers of burbot (Lota lota) in Lake Mjosa, Norway. In order to assess effects of such pollutants on fish gonadal morphology, female zebrafish were exposed in two generations by food to mixtures of pollutants extracted from livers of burbot from Lake Mjosa (high and low dose) and Lake Losna, which represents background pollution, and compared to a control group. Ovarian follicle counts detected a significant decrease in late vitellogenic follicle stages in fish exposed to the Losna and the high concentrations of Mjosa mixtures in fish from the first generation. In addition, proliferation of granulosa cells, visualized by immunohistochemistry against proliferating cell nuclear antigen (PCNA), was decreased in all exposure groups in either early or late vitellogenic follicle stages compared to control. This was accompanied by increased apoptosis of granulosa cells. There was a decrease in proliferation of liver hepatocytes with exposure to both Mjosa mixtures. In addition, immunopositivity for vitellogenin in the liver was significantly lower in the Mjosa high group than in the control group. When analysing effects of parental exposure, fish with parents exposed to Mjosa high mixture had significantly higher numbers of perinucleolar follicles than fish with control parents. We conclude that long-term exposure of a real-life mixture of pollutants containing high- and background levels of chemicals supress ovarian follicle development, liver vitellogenin immunostaining intensity and hepatocyte proliferation in the zebrafish model.

  10. The proliferation marker thymidine kinase 1 in clinical use

    Zhou, Ji; HE, ELLEN; SKOG, SVEN

    2012-01-01

    Tumor-related biomarkers are used for the diagnosis, prognosis and monitoring of treatments and follow-up of cancer patients, although only a few are fully accepted for the detection of invisible/visible tumors in health screening. Thymidine kinase 1 (TK1), a cell cycle-dependent and thus a proliferation-related marker, has been extensively studied during the last decades, using both biochemical and immunological techniques. Therefore, TK1 is an emerging potential proliferating biomarker in o...

  11. Inhibition of fatty acid metabolism reduces human myeloma cells proliferation.

    José Manuel Tirado-Vélez

    Full Text Available Multiple myeloma is a haematological malignancy characterized by the clonal proliferation of plasma cells. It has been proposed that targeting cancer cell metabolism would provide a new selective anticancer therapeutic strategy. In this work, we tested the hypothesis that inhibition of β-oxidation and de novo fatty acid synthesis would reduce cell proliferation in human myeloma cells. We evaluated the effect of etomoxir and orlistat on fatty acid metabolism, glucose metabolism, cell cycle distribution, proliferation, cell death and expression of G1/S phase regulatory proteins in myeloma cells. Etomoxir and orlistat inhibited β-oxidation and de novo fatty acid synthesis respectively in myeloma cells, without altering significantly glucose metabolism. These effects were associated with reduced cell viability and cell cycle arrest in G0/G1. Specifically, etomoxir and orlistat reduced by 40-70% myeloma cells proliferation. The combination of etomoxir and orlistat resulted in an additive inhibitory effect on cell proliferation. Orlistat induced apoptosis and sensitized RPMI-8226 cells to apoptosis induction by bortezomib, whereas apoptosis was not altered by etomoxir. Finally, the inhibitory effect of both drugs on cell proliferation was associated with reduced p21 protein levels and phosphorylation levels of retinoblastoma protein. In conclusion, inhibition of fatty acid metabolism represents a potential therapeutic approach to treat human multiple myeloma.

  12. Nuclear proliferation and national security in India and Pakistan

    Joeck, N.H.A.

    1986-01-01

    This study develops an inventory of propositions from secondary literature about nuclear proliferation incentives and constraints. From this comprehensive inventory are derived eight dimensions of proliferation. Once a state has acquired the necessary technology and material to develop weapons, the critical factors that motivate proliferation are insecurity, alliance protection, and a threat of national extinction. The eight dimensions are then evaluated with respect to two critical states, India and Pakistan, both of which are on the brink of developing nuclear weapons. Extensive interviews were conducted in the United States, India, and Pakistan of senior Indian, Pakistani, and American military official, diplomats, politicians, scholars, and journalists. Based on these interviews, it is clear that Indians and Pakistanis feel themselves caught in a dilemma. Although the initial motivation for developing weapons was indeed found to be insecurity, as expected, it is generally assumed that the effect of proliferation will in fact be to render both states even less secure than they were before beginning their nuclear programs. India and Pakistan are a critical pair of states as they are in a position to assess the probable consequences of nuclear proliferation and back away from it. In so doing, they could set an example to other states of why nuclear proliferation is not in the security interest of nations.

  13. Endothelial cell proliferation in swine experimental aneurysm after coil embolization.

    Yumiko Mitome-Mishima

    Full Text Available After coil embolization, recanalization in cerebral aneurysms adversely influences long-term prognosis. Proliferation of endothelial cells on the coil surface may reduce the incidence of recanalization and further improve outcomes after coil embolization. We aimed to map the expression of proliferating tissue over the aneurysmal orifice and define the temporal profile of tissue growth in a swine experimental aneurysm model. We compared the outcomes after spontaneous thrombosis with those of coil embolization using histological and morphological techniques. In aneurysms that we not coiled, spontaneous thrombosis was observed, and weak, easily detachable proliferating tissue was evident in the aneurysmal neck. In contrast, in the coil embolization group, histological analysis showed endothelial-like cells lining the aneurysmal opening. Moreover, immunohistochemical and morphological analysis suggested that these cells were immature endothelial cells. Our results indicated the existence of endothelial cell proliferation 1 week after coil embolization and showed immature endothelial cells in septal tissue between the systemic circulation and the aneurysm. These findings suggest that endothelial cells are lead to and proliferate in the former aneurysmal orifice. This is the first examination to evaluate the temporal change of proliferating tissue in a swine experimental aneurysm model.

  14. EDA-Containing Fibronectin Increases Proliferation of Embryonic Stem Cells

    Losino, Noelia; Waisman, Ariel; Solari, Claudia; Luzzani, Carlos; Espinosa, Darío Fernández; Sassone, Alina; Muro, Andrés F.; Miriuka, Santiago; Sevlever, Gustavo; Barañao, Lino; Guberman, Alejandra

    2013-01-01

    Embryonic stem cells (ESC) need a set of specific factors to be propagated. They can also grow in conditioned medium (CM) derived from a bovine granulosa cell line BGC (BGC-CM), a medium that not only preserves their main features but also increases ESC´s proliferation rate. The mitogenic properties of this medium were previously reported, ascribing this effect to an alternative spliced generated fibronectin isoform that contains the extra domain A (FN EDA+). Here, we investigated if the FN EDA+ isoform increased proliferation of mouse and human ES cells. We analyzed cell proliferation using conditioned media produced by different mouse embryonic fibroblast (MEF) lines genetically engineered to express FN constitutively including or excluding the EDA domain (FN EDA-), and in media supplemented with recombinant peptides containing or not the EDA. We found that the presence of EDA in the medium increased mouse and human ESC’s proliferation rate. Here we showed for the first time that this FN isoform enhances ESC’s proliferation. These findings suggest a possible conserved behavior for regulation of ES cells proliferation by this FN isoform and could contribute to improve their culturing conditions both for research and cell therapy. PMID:24244705

  15. EDA-containing fibronectin increases proliferation of embryonic stem cells.

    Noelia Losino

    Full Text Available Embryonic stem cells (ESC need a set of specific factors to be propagated. They can also grow in conditioned medium (CM derived from a bovine granulosa cell line BGC (BGC-CM, a medium that not only preserves their main features but also increases ESC´s proliferation rate. The mitogenic properties of this medium were previously reported, ascribing this effect to an alternative spliced generated fibronectin isoform that contains the extra domain A (FN EDA(+. Here, we investigated if the FN EDA(+ isoform increased proliferation of mouse and human ES cells. We analyzed cell proliferation using conditioned media produced by different mouse embryonic fibroblast (MEF lines genetically engineered to express FN constitutively including or excluding the EDA domain (FN EDA(-, and in media supplemented with recombinant peptides containing or not the EDA. We found that the presence of EDA in the medium increased mouse and human ESC's proliferation rate. Here we showed for the first time that this FN isoform enhances ESC's proliferation. These findings suggest a possible conserved behavior for regulation of ES cells proliferation by this FN isoform and could contribute to improve their culturing conditions both for research and cell therapy.

  16. Diazoxide promotes oligodendrocyte precursor cell proliferation and myelination.

    Birgit Fogal

    Full Text Available BACKGROUND: Several clinical conditions are associated with white matter injury, including periventricular white matter injury (PWMI, which is a form of brain injury sustained by preterm infants. It has been suggested that white matter injury in this condition is due to altered oligodendrocyte (OL development or death, resulting in OL loss and hypomyelination. At present drugs are not available that stimulate OL proliferation and promote myelination. Evidence suggests that depolarizing stimuli reduces OL proliferation and differentiation, whereas agents that hyperpolarize OLs stimulate OL proliferation and differentiation. Considering that the drug diazoxide activates K(ATP channels to hyperpolarize cells, we tested if this compound could influence OL proliferation and myelination. METHODOLOGY/FINDINGS: Studies were performed using rat oligodendrocyte precursor cell (OPC cultures, cerebellar slice cultures, and an in vivo model of PWMI in which newborn mice were exposed to chronic sublethal hypoxia (10% O(2. We found that K(ATP channel components Kir 6.1 and 6.2 and SUR2 were expressed in oligodendrocytes. Additionally, diazoxide potently stimulated OPC proliferation, as did other K(ATP activators. Diazoxide also stimulated myelination in cerebellar slice cultures. We also found that diazoxide prevented hypomyelination and ventriculomegaly following chronic sublethal hypoxia. CONCLUSIONS: These results identify KATP channel components in OLs and show that diazoxide can stimulate OL proliferation in vitro. Importantly we find that diazoxide can promote myelination in vivo and prevent hypoxia-induced PWMI.

  17. Bioeffect of lipohemia rabbits irradiated in oral mucosa with 650-nm diode-laser-accompanied oxygen inspiration and clinical application

    Yang, Fu-Shou; Tang, Jin-Xian; Liu, Cheng; Yang, Xi-Cheng; Pang, Hi-Xiu

    1998-11-01

    The study on irradiating in oral mucosa of rabbits with 650 nm diode laser and clinical application has been reported in this paper. The result of animal experiment showed: the obvious decrease of cholesterin and triglyceride has been found among those highly lipohemia rabbits in the experiments of 650nm diode laser irradiating accompanying with oxygen, as well as the parameters of hemorheology obviously being improved, as compared with highly lipohemia rabbits un-irradiating, the statistical analysis showing P renal interstitial in the group of rabbits which are irradiated with laser and accompanying with oxygen inspiration, and even the perfectly recovered tissue in some rabbits has been seen. This experimental result is significantly for clinical application. The results of clinic application showed, that the patients employed this method which treatment cerebral infarction, lipohemia, the total effective ratio achieved 91.7 percent, perfect effect 30.6 percent.

  18. WEATHER AND CIRCULATION TYPES ACCOMPANYING THERMAL AND HUMIDITY CONDITIONS UNFAVOURABLE TO THE HUMAN HEALTH IN SUMMER IN KRAKOW (POLAND

    D. CIARANEK

    2013-03-01

    Full Text Available The paper presents the results of a study analysing the frequency of occurrence and patterns of change in the human perception of temperature in relation to types of weather and circulation in Krakow. The Humidex index used for the purpose was determined at three measurement times (6, 12, 18 UTC with data spanning the period 1961-2012. The frequency of occurrence of all types of discomfort situation was found to be on the increase. Days with some discomfort occurred most frequently during non-advection situations, (especially in the centre of a meteorological high or anticyclonic wedge, accompanied by transformed polar maritime air or continental polar air. The weather varied greatly on such days, from cloudy to sunny and with or without precipitation. Days with high discomfort levels were associated with the advection of tropical air accompanied typically by very hot, sweltering weather, and by dry, very sunny weather.

  19. New dance piano accompaniment teaching practice%舞蹈钢琴伴奏的教学实践新探

    项征

    2015-01-01

    舞蹈钢琴伴奏教学不仅是一门重要的艺术类学科,更是一门横跨舞蹈和音乐两大艺术的学科,以舞蹈教学为主,以音乐伴奏为辅,通过音乐的衬托来让学生在一定的意境下学习相关知识,对培养舞蹈艺术人才有着极大的作用.%Dance piano accompaniment teaching is not only a important arts discipline, but also an art subject across dance and music, give priority to with the dance teaching, with music accompaniment is complementary, foil through music to let students study related knowledge, under a certain artistic conception has a great role on training dance art talents.

  20. Relationship between lipid profile, cardiac hemodynamics status and autoimmune activation markers in patients with ischemic heart disease, accompanied with hypothyroidism

    N. S. Mykhailovska

    2015-11-01

    Full Text Available Presence of hypothyroidism in patients with coronary heart disease contribute to its progression. Aim. Study purpose was exploring the features of changes in lipid profile, cardiac hemodynamics status, autoimmune activation markers and their relationships in patients with coronary heart disease, accompanied with hypothyroidism. Methods and results. 64 patients were examined. The levels of thyroid-pituitary hormones, concentration of tumor necrosis factor-α, C-reactive protein, endothelin-1, an inhibitor of plasminogen activator-1, neopterin were examined by ELISA. Structural and functional heart features were studied with doppler echocardiography. It was found that patients with coronary heart disease, accompanied with hypothyroidism, had more expressed lipid disorders, heart restructuring such as increased end - diastolic volume, end - diastolic pressure, myocardial mass and stiffness index on the background of immunoinflammatory activation and endothelial dysfunction. Conclusions. It was found correlation between markers of endothelial dysfunction immunoinflammatory activation and lipid profile, heart structural and functional state.

  1. A case of Fanconi syndrome accompanied by crystal depositions in tubular cells in a patient with multiple myeloma

    Do Hee Kim

    2014-06-01

    Full Text Available Fanconi syndrome (FS is a rare condition that is characterized by defects in the proximal tubular function. A 48-year-old woman was admitted for evaluation of proteinuria. The patient showed normal anion gap acidosis, normoglycemic glycosuria, hypophosphatemia, and hypouricemia. Thus, her condition was compatible with FS. The M peak was found behind the beta globulin region in urine protein electrophoresis. Upon bone marrow examination, we found that 24% of cells were CD138+ plasma cells with kappa restriction. From a kidney biopsy, we found crystalline inclusions within proximal tubular epithelial cells. Thereafter, she was diagnosed with FS accompanied by multiple myeloma. The patient received chemotherapy and autologous stem cell transplantation, and obtained very good partial hematologic response. However, proximal tubular dysfunction was persistent until 1 year after autologous stem cell transplantation. In short, we report a case of FS accompanied by multiple myeloma, demonstrating crystalline inclusion in proximal tubular cells on kidney biopsy.

  2. Direct measurement of the initial proton extrusion to oxygen uptake ratio accompanying succinate oxidation by rat liver mitochondria.

    Setty, O H; Shrager, R I; Bunow, B; Reynafarje, B; Lehninger, A L; Hendler, R W

    1986-01-01

    The problem of obtaining very early ratios for the H+/O stoichiometry accompanying succinate oxidation by rat liver mitochondria was attacked using new techniques for direct measurement rather than extrapolations based on data obtained after mixing and the recovery of the electrode from initial injection of O2. Respiration was quickly initiated in a thoroughly mixed O2-containing suspension of mitochondria under a CO atmosphere by photolysis of the CO-cytochrome c oxidase complex-. Fast respo...

  3. Efficacy of application technology of managing physical exercise by the musical accompaniment to reduce school anxiety first form pupils

    Smirnova Y.V.

    2014-01-01

    Full Text Available Purpose : to study the need to improve the mental state of first-graders and the possibility of achieving this goal, the lesson of physical culture at the expense of proper use of musical accompaniment exercise. Material : participated in the experiment experimental, control and background group (only 55 students of first class. Results : argues that music has a regulating effect on mental and physiological state of a person. It is noted that the combined effects of exercise and music on the body and psyche of a child reduces total anxiety in school. Also reduces the fear in a meaningful situation knowledge test. Found that the effect of exercise without music and with various embodiments use musical accompaniment in the lesson to address interpersonal relations student and the teacher has no significant difference. Conclusions : as a result of the pedagogical experiment to identify significantly positive, confirming the effectiveness of the technology of managing physical exercise by the musical accompaniment for the performance of most indicators of school anxiety.

  4. {\\alpha}-accompanied cold ternary fission of $^{238-244}$Pu isotopes in equatorial and collinear configuration

    Santhosh, K P; Priyanka, B

    2015-01-01

    The cold ternary fission of $^{238}$Pu, $^{240}$Pu, $^{242}$Pu and $^{244}$Pu isotopes, with $^{4}$He as light charged particle, in equatorial and collinear configuration has been studied within the Unified ternary fission model (UTFM). The fragment combination $^{100}$Zr+$^{4}$He+$^{134}$Te possessing the near doubly magic nuclei $^{134}$Te (N=82, Z=52) gives the highest yield in the alpha accompanied ternary fission of $^{238}$Pu. For the alpha accompanied ternary fission of $^{240}$Pu, $^{242}$Pu and $^{244}$Pu isotopes, the highest yield was found for the fragment combination with doubly magic nuclei $^{132}$Sn (N=82, Z=50) as the heavier fragment. The deformation and orientation of fragments have also been taken into account for the alpha accompanied ternary fission of $^{238-244}$Pu isotopes, and it has been found that in addition to closed shell effect, ground state deformation also plays an important role in determining the isotopic yield in the ternary fission process. The emission probability and ki...

  5. The Contribution of Conceptual Change Texts Accompanied by Concept Mapping to Eleventh-Grade Students Understanding of Cellular Respiration Concepts

    Al Khawaldeh, Salem A.; Al Olaimat, Ali M.

    2010-04-01

    The present study conducted to investigate the contribution of conceptual change texts, accompanied by concept mapping instruction to eleventh-grade students' understanding of cellular respiration concepts, and their retention of this understanding. Cellular respiration concepts test was developed as a result of examination of related literature and interviews with teachers regarding their observations of students' difficulties. The test was administrated as pre-test, post-test, and delayed post-test to a total of 70 eleventh-grade students in two classes of the same high school in an urban area, taught by the same teacher. The experimental group was a class of 34 students who received conceptual change texts accompanied by concept mapping instruction. A class of 36 students comprised the control group who received traditional instruction. Besides treatment, previous understanding and logical thinking ability were other independent variables involved in this study. The results showed that logical thinking, treatment, previous understanding of cellular respiration concepts each made a statistically significant contribution to the variation in students' understanding of cellular respiration concepts. The result also showed that conceptual change texts accompanied by concept mapping instruction was significantly better than traditional instruction in retention of this understanding.

  6. In vitro proliferation of adult human beta-cells.

    Sabine Rutti

    Full Text Available A decrease in functional beta-cell mass is a key feature of type 2 diabetes. Glucagon-like peptide 1 (GLP-1 analogues induce proliferation of rodent beta-cells. However, the proliferative capacity of human beta-cells and its modulation by GLP-1 analogues remain to be fully investigated. We therefore sought to quantify adult human beta-cell proliferation in vitro and whether this is affected by the GLP-1 analogue liraglutide.Human islets from 7 adult cadaveric organ donors were dispersed into single cells. Beta-cells were purified by FACS. Non-sorted cells and the beta-cell enriched ("beta-cells" population were plated on extracellular matrix from rat (804G and human bladder carcinoma cells (HTB9 or bovine corneal endothelial ECM (BCEC. Cells were maintained in culture+/-liraglutide for 4 days in the presence of BrdU.Rare human beta-cell proliferation could be observed either in the purified beta-cell population (0.051±0.020%; 22 beta-cells proliferating out of 84'283 beta-cells counted or in the non-sorted cell population (0.055±0.011%; 104 proliferating beta-cells out of 232'826 beta-cells counted, independently of the matrix or the culture conditions. Liraglutide increased human beta-cell proliferation on BCEC in the non-sorted cell population (0.082±0.034% proliferating beta-cells vs. 0.017±0.008% in control, p<0.05.These results indicate that adult human beta-cell proliferation can occur in vitro but remains an extremely rare event with these donors and particular culture conditions. Liraglutide increases beta-cell proliferation only in the non-sorted cell population and only on BCEC. However, it cannot be excluded that human beta-cells may proliferate to a greater extent in situ in response to natural stimuli.

  7. miR-30a suppresses breast cancer cell proliferation and migration by targeting Eya2

    Fu, Jing [Department of Endocrinology, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing (China); Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing (China); Xu, Xiaojie [Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing (China); Kang, Lei [Department of Nuclear Medicine, Peking University First Hospital, Beijing (China); Zhou, Liying [Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing (China); Wang, Shibin [Department of General Surgery, 307 Hospital of PLA, Beijing (China); Lu, Juming [Department of Endocrinology, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing (China); Cheng, Long; Fan, Zhongyi; Yuan, Bin [Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing (China); Tian, Peirong [Department of Endocrinology, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing (China); Zheng, Xiaofei [Beijing Institute of Radiation Medicine, Beijing (China); Yu, Chengze, E-mail: yuchengze@sina.com [Department of General Surgery, 307 Hospital of PLA, Beijing (China); Ye, Qinong, E-mail: yeqn66@yahoo.com [Department of Medical Molecular Biology, Beijing Institute of Biotechnology, Beijing (China); Lv, Zhaohui, E-mail: metabolism301@126.com [Department of Endocrinology, Chinese PLA General Hospital, Chinese PLA Medical School, Beijing (China)

    2014-03-07

    Highlights: • miR-30a represses Eya2 expression by binding to the 3′-untranslated region of Eya2. • The miR-30a/EYA2 axis regulates breast cancer cell proliferation and migration. • The miR-30a/EYA2 axis modulates G1/S cell cycle progression. • The miR-30a/EYA2 axis is dysregulated in breast cancer patients. - Abstract: Eye absent (Eya) proteins are involved in cell fate determination in a broad spectrum of cells and tissues. Aberrant expression of Eya2 has been documented in a variety of cancers and correlates with clinical outcome. However, whether microRNAs (miRNAs) can regulate Eya2 expression remains unknown. Here, we show that miR-30a represses Eya2 expression by binding to the 3′-untranslated region of Eya2. Overexpression of Eya2 in miR-30a-transfected breast cancer cells effectively rescued the inhibition of cell proliferation and migration caused by miR-30a. Knockdown of Eya2 by small-interfering RNA (siRNA) in breast cancer cells mimicked the effect induced by miR-30a and abolished the ability of miR-30a to regulate breast cancer cell proliferation and migration. The miR-30a/Eya2 axis could regulate G1/S cell cycle progression, accompanied by the modulation of expression of cell cycle-related proteins, including cyclin A, cyclin D1, cyclin E, and c-Myc. Moreover, miR-30a expression was downregulated in breast cancer patients, and negatively correlated with Eya2, which was upregulated in breast cancer patients. These data suggest that the miR-30a/Eya2 axis may play an important role in breast cancer development and progression and that miR-30a activation or Eya2 inhibition may be a useful strategy for cancer treatment.

  8. Evaluation of the Cell Proliferation Process of Ovarian Follicles in Hypothyroid Rats by Proliferation Cell Nuclear Antigen Immunohistochemical Technique

    M. Moghaddam Dorafshani

    2012-10-01

    Full Text Available Introduction & Objective: The normal females reproductive function , needs hypothalamus-hypophysis-ovarian extensive hormonal messages. Primary hypothyroidism is characterized by reduced production and secretion of thyroid hormones. During follicular growth PCNA (Proliferating Cell Nuclear Antigen and cycklin D complex play an important role in regulating cell proliferation .This study aimed to determine the cell proliferation index and how this process changes induced by thyroid hormone decreased in rat ovarian follicles.Materials & Methods: In this experimental study, 20 Wistar female rats were divided into experimental and control groups. Experimental group was chemically thyroidectomized by administering propylthiouracil (PTU (500 mg per liter of drinking water. The control group received normal drinking water. After three weeks rats were killed and their ovaries dissected and fixed for the histological preparation. Cell proliferation was determined by PCNA and stereological methods were used for counting cells.Results: Cell proliferation index showed a significant decrease in the frequency of follicular growth from prenatal to graafian follicles in hypothyroidism groups(P0.05 . PCNA expression determined that Primary follicle growth begins earlier. Positive PCNA cells were not observed in primordial follicles of the groups.Conclusion: According to the results of our study, this hypothesis is raised that granulosa cells in growing follicles may be increased by follicle adjacent cells in ovarian stroma . Hormonal changes following the reduction of thyroid hormones may greatly affect the cell proliferation index and lead to faster follicle degeneration.(Sci J Hamadan Univ Med Sci 2012; 19 (3:5-15

  9. Analysis of nuclear proliferation resistance reprocessing and recycling technologies

    Patricia Paviet-Hartmann; Gary Cerefice; Marcela Stacey; Steven Bakhtiar

    2011-05-01

    The PUREX process has been progressively and continuously improved during the past three decades, and these improvements account for successful commercialization of reprocessing in a few countries. The renewed interest in nuclear energy and the international growth of nuclear electricity generation do not equate – and should not be equated -with increasing proliferation risks. Indeed, the nuclear renaissance presents a unique opportunity to enhance the culture of non-proliferation. With the recent revival of interest in nuclear technology, technical methods for prevention of nuclear proliferation are being revisited. Robust strategies to develop new advanced separation technologies are emerging worldwide for sustainability and advancement of nuclear energy with enhanced proliferation resistance. On the other hand, at this moment, there are no proliferation resistance advanced technologies. . Until now proliferation resistance as it applies to reprocessing has been focused on not separating a pure stream of weapons-usable plutonium. France, as an example, has proposed a variant of the PUREX process, the COEX TM process, which does not result on a pure plutonium product stream. A further step is to implement a process based on group extraction of actinides and fission products associated with a homogeneous recycling strategy (UNEX process in the US, GANEX process in France). Such scheme will most likely not be deployable on an industrial scale before 2030 or so because it requires intensive R&D and robust flowsheets. Finally, future generation recycling schemes will handle the used nuclear fuel in fast neutron reactors. This means that the plutonium throughput of the recycling process may increase. The need is obvious for advanced aqueous recycling technologies that are intrinsically more proliferation resistant than the commercial PUREX process. In this paper, we review the actual PUREX process along with the advanced recycling technologies that will enhance

  10. Matrix Stiffness Regulates Endothelial Cell Proliferation through Septin 9

    Yeh, Yi-Ting; Hur, Sung Sik; Chang, Joann; Wang, Kuei-Chun; Chiu, Jeng-Jiann; Li, Yi-Shuan; Chien, Shu

    2012-01-01

    Endothelial proliferation, which is an important process in vascular homeostasis, can be regulated by the extracellular microenvironment. In this study we demonstrated that proliferation of endothelial cells (ECs) was enhanced on hydrogels with high stiffness (HSG, 21.5 kPa) in comparison to those with low stiffness (LSG, 1.72 kPa). ECs on HSG showed markedly prominent stress fibers and a higher RhoA activity than ECs on LSG. Blockade of RhoA attenuated stress fiber formation and proliferation of ECs on HSG, but had little effect on ECs on LSG; enhancement of RhoA had opposite effects. The phosphorylations of Src and Vav2, which are positive RhoA upstream effectors, were higher in ECs on HSG. The inhibition of Src/Vav2 attenuated the HSG-mediated RhoA activation and EC proliferation but exhibited nominal effects on ECs on LSG. Septin 9 (SEPT9), the negative upstream effector for RhoA, was significantly higher in ECs on LSG. The inhibition of SEPT9 increased RhoA activation, Src/Vav2 phosphorylations, and EC proliferation on LSG, but showed minor effects on ECs on HSG. We further demonstrated that the inactivation of integrin αvβ3 caused an increase of SEPT9 expression in ECs on HSG to attenuate Src/Vav2 phosphorylations and inhibit RhoA-dependent EC proliferation. These results demonstrate that the SEPT9/Src/Vav2/RhoA pathway constitutes an important molecular mechanism for the mechanical regulation of EC proliferation. PMID:23118862

  11. Nesfatin-1 inhibits ovarian epithelial carcinoma cell proliferation in vitro

    Xu, Yang; Pang, Xiaoyan; Dong, Mei; Wen, Fang, E-mail: wenfang64@hotmail.com; Zhang, Yi, E-mail: syzi960@yahoo.com

    2013-11-01

    Highlights: •Nesfatin-1 inhibits the proliferation and growth of HO-8910 cells by G1 phase arrest. •Nesfatin-1 enhances HO-8910 cell apoptosis. •Nesfatin-1 inhibits HO-8910 cell proliferation via mTOR and RhoA/ROCK signaling pathway. •The first report of nesfatin-1-mediated proliferation in ovarian epithelial carcinoma. -- Abstract: Nesfatin-1, an 82-amino-acid peptide derived from a 396-amino-acid precursor protein nucleobindin 2 (NUCB2), was originally identified in hypothalamic nuclei involved in the regulation of food intake. It was recently reported that nesfatin-1 is a novel depot specific adipokine preferentially produced by subcutaneous tissue, with obesity- and food deprivation-regulated expression. Although a relation between ovarian cancer mortality and obesity has been previously established, a role of nesfatin-1 in ovarian epithelial carcinoma remains unknown. The aim of the present study is to examine the effect of nesfatin-1 on ovary carcinoma cells proliferation. We found that nesfatin-1 inhibits the proliferation and growth of HO-8910 cells by G1 phase arrest, this inhibition could be abolished by nesfatin-1 neutralizing antibody. Nesfatin-1 enhances HO-8910 cell apoptosis, activation of mammalian target of rapamycin (mTOR) and RhoA/ROCK signaling pathway block the effects of nesfatin-1-induced apoptosis, therefore reverses the inhibition of HO-8910 cell proliferation by nesfatin-1. In conclusion, the present study demonstrated that nesfatin-1 can inhibit the proliferation in human ovarian epithelial carcinoma cell line HO-8910 cells through inducing apoptosis via mTOR and RhoA/ROCK signaling pathway. This study provides a novel regulatory signaling pathway of nesfatin-1-regulated ovarian epithelial carcinoma growth and may contribute to ovarian cancer prevention and therapy, especially in obese patients.

  12. Matrix stiffness regulates endothelial cell proliferation through septin 9.

    Yi-Ting Yeh

    Full Text Available Endothelial proliferation, which is an important process in vascular homeostasis, can be regulated by the extracellular microenvironment. In this study we demonstrated that proliferation of endothelial cells (ECs was enhanced on hydrogels with high stiffness (HSG, 21.5 kPa in comparison to those with low stiffness (LSG, 1.72 kPa. ECs on HSG showed markedly prominent stress fibers and a higher RhoA activity than ECs on LSG. Blockade of RhoA attenuated stress fiber formation and proliferation of ECs on HSG, but had little effect on ECs on LSG; enhancement of RhoA had opposite effects. The phosphorylations of Src and Vav2, which are positive RhoA upstream effectors, were higher in ECs on HSG. The inhibition of Src/Vav2 attenuated the HSG-mediated RhoA activation and EC proliferation but exhibited nominal effects on ECs on LSG. Septin 9 (SEPT9, the negative upstream effector for RhoA, was significantly higher in ECs on LSG. The inhibition of SEPT9 increased RhoA activation, Src/Vav2 phosphorylations, and EC proliferation on LSG, but showed minor effects on ECs on HSG. We further demonstrated that the inactivation of integrin α(vβ(3 caused an increase of SEPT9 expression in ECs on HSG to attenuate Src/Vav2 phosphorylations and inhibit RhoA-dependent EC proliferation. These results demonstrate that the SEPT9/Src/Vav2/RhoA pathway constitutes an important molecular mechanism for the mechanical regulation of EC proliferation.

  13. Aeroallergen challenge promotes dendritic cell proliferation in the airways.

    Veres, Tibor Z; Voedisch, Sabrina; Spies, Emma; Valtonen, Joona; Prenzler, Frauke; Braun, Armin

    2013-02-01

    Aeroallergen provocation induces the rapid accumulation of CD11c(+)MHC class II (MHC II)(+) dendritic cells (DCs) in the lungs, which is driven by an increased recruitment of blood-derived DC precursors. Recent data show, however, that well-differentiated DCs proliferate in situ in various tissues. This may also contribute to their allergen-induced expansion; therefore, we studied DC proliferation in the airways of mice in the steady state and after local aeroallergen provocation. Confocal whole-mount microscopy was used to visualize proliferating DCs in different microanatomical compartments of the lung. We demonstrate that in the steady state, CD11c(+)MHC II(+) DCs proliferate in both the epithelial and subepithelial layers of the airway mucosa as well as in the lung parenchyma. A 1-h pulse of the nucleotide 5-ethynyl-2'-deoxyuridine was sufficient to label 5% of DCs in both layers of the airway mucosa. On the level of whole-lung tissue, 3-5% of both CD11b(+) and CD11b(-) DC populations and 0.3% of CD11c(+)MHC II(low) lung macrophages incorporated 5-ethynyl-2'-deoxyuridine. Aeroallergen provocation caused a 3-fold increase in the frequency of locally proliferating DCs in the airway mucosa. This increase in mucosal DC proliferation was later followed by an elevation in the number of DCs. The recruitment of monocyte-derived inflammatory DCs contributed to the increasing number of DCs in the lung parenchyma, but not in the airway mucosa. We conclude that local proliferation significantly contributes to airway DC homeostasis in the steady state and that it is the major mechanism underlying the expansion of the mucosal epithelial/subepithelial DC network in allergic inflammation.

  14. Fisetin and hesperetin induced apoptosis and cell cycle arrest in chronic myeloid leukemia cells accompanied by modulation of cellular signaling.

    Adan, Aysun; Baran, Yusuf

    2016-05-01

    Fisetin and hesperetin, naturally occurring flavonoids, have been reported as novel antioxidants with chemopreventive/chemotherapeutic potential against various types of cancer. However, their mechanism of action in CML is still unknown. This particular study aims to evaluate the therapeutic potentials of fisetin and hesperetin and their effects on cell proliferation, apoptosis, and cell cycle progression in human K562 CML cells. The results indicated that fisetin and hesperetin inhibited cell proliferation and triggered programmed cell death in these cells. The latter was confırmed by mitochondrial membrane depolarization and an increase in caspase-3 activation. In addition to that, we have detected S and G2/M cell cycle arrests and G0/G1 arrest upon fisetin and hesperetin treatment, respectively. To identify the altered genes and genetic networks in response to fisetin and hesperetin, whole-genome microarray analysis was performed. The microarray gene profiling analysis revealed some important signaling pathways including JAK/STAT pathway, KIT receptor signaling, and growth hormone receptor signaling that were altered upon fisetin and hesperetin treatment. Moreover, microarray data suggested potential candidate genes for targeted CML therapy. Fisetin and hesperetin significantly modulated the expression of genes involved in cell proliferation and division, apoptosis, cell cycle regulation, and other significant cellular processes such as replication, transcription, and translation. In conclusion, our results suggest that fisetin and hesperetin as potential natural agents for CML therapy.

  15. Ablation of phosphoinositide-3-kinase class II alpha suppresses hepatoma cell proliferation

    Ng, Stanley K.L. [Singapore Immunology Network A-STAR (Singapore); Neo, Soek-Ying, E-mail: neo_soek_ying@sics.a-star.edu.sg [Singapore Immunology Network A-STAR (Singapore); Yap, Yann-Wan [Singapore Immunology Network A-STAR (Singapore); Karuturi, R. Krishna Murthy; Loh, Evelyn S.L. [Genome Institute of Singapore A-STAR (Singapore); Liau, Kui-Hin [Department of General Surgery, Tan Tock Seng Hospital (Singapore); Ren, Ee-Chee, E-mail: ren_ee_chee@immunol.a-star.edu.sg [Singapore Immunology Network A-STAR (Singapore); Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore (Singapore)

    2009-09-18

    Cancer such as hepatocellular carcinoma (HCC) is characterized by complex perturbations in multiple signaling pathways, including the phosphoinositide-3-kinase (PI3K/AKT) pathways. Herein we investigated the role of PI3K catalytic isoforms, particularly class II isoforms in HCC proliferation. Among the siRNAs tested against the eight known catalytic PI3K isoforms, specific ablation of class II PI3K alpha (PIK3C2{alpha}) was the most effective in impairing cell growth and this was accompanied by concomitant decrease in PIK3C2{alpha} mRNA and protein levels. Colony formation ability of cells deficient for PIK3C2{alpha} was markedly reduced and growth arrest was associated with increased caspase 3 levels. A small but significant difference in gene dosage and expression levels was detected between tumor and non-tumor tissues in a cohort of 19 HCC patients. Taken together, these data suggest for the first time that in addition to class I PI3Ks in cancer, class II PIK3C2{alpha} can modulate HCC cell growth.

  16. Bmi1 regulates murine intestinal stem cell proliferation and self-renewal downstream of Notch.

    López-Arribillaga, Erika; Rodilla, Verónica; Pellegrinet, Luca; Guiu, Jordi; Iglesias, Mar; Roman, Angel Carlos; Gutarra, Susana; González, Susana; Muñoz-Cánoves, Pura; Fernández-Salguero, Pedro; Radtke, Freddy; Bigas, Anna; Espinosa, Lluís

    2015-01-01

    Genetic data indicate that abrogation of Notch-Rbpj or Wnt-β-catenin pathways results in the loss of the intestinal stem cells (ISCs). However, whether the effect of Notch is direct or due to the aberrant differentiation of the transit-amplifying cells into post-mitotic goblet cells is unknown. To address this issue, we have generated composite tamoxifen-inducible intestine-specific genetic mouse models and analyzed the expression of intestinal differentiation markers. Importantly, we found that activation of β-catenin partially rescues the differentiation phenotype of Rbpj deletion mutants, but not the loss of the ISC compartment. Moreover, we identified Bmi1, which is expressed in the ISC and progenitor compartments, as a gene that is co-regulated by Notch and β-catenin. Loss of Bmi1 resulted in reduced proliferation in the ISC compartment accompanied by p16(INK4a) and p19(ARF) (splice variants of Cdkn2a) accumulation, and increased differentiation to the post-mitotic goblet cell lineage that partially mimics Notch loss-of-function defects. Finally, we provide evidence that Bmi1 contributes to ISC self-renewal.

  17. Loss of COX5B inhibits proliferation and promotes senescence via mitochondrial dysfunction in breast cancer.

    Gao, Shui-Ping; Sun, He-Fen; Jiang, Hong-Lin; Li, Liang-Dong; Hu, Xin; Xu, Xiao-En; Jin, Wei

    2015-12-22

    COX5B, a peripheral subunit of the cytochrome c oxidase complex, has previously been reported to maintain the stability of this complex. However, its functions and mechanisms involved in breast cancer progression remain unclear. Here, by performing SILAC assays in breast cancer cell models and detecting COX5B expression in tissues, we found that COX5B expression was elevated in breast cancer. Down-regulation of COX5B in breast cancer cell lines can suppress cell proliferation and induced cell senescence which was accompanied by elevating production of IL-8 and other cytokines. Interestingly, conditioned medium from COX5B knockdown cells could promote breast cancer cell migration. Mechanistic studies reveal that COX5B silence induces an increase in production of ROS, depolarization of MMP and a decrease in ATP. What's more, silence of COX5B leads to metabolic disorders, such as increased glucose uptake and decreased lactate secretion. Collectively, our study shows that loss of COX5B induces mitochondrial dysfunction and subsequently leads to cell growth suppression and cell senescence. Cytokines such as IL-8 secreted by senescent cells may in turn alter the microenvironment which could enhance cell migration. These findings may provide a novel paradigm for the treatment which combined anti-cancer drugs with particular cytokine inhibitors such as IL-8 blockers.

  18. Porphyromonas gingivalis decreases osteoblast proliferation through IL-6-RANKL/OPG and MMP-9/TIMPs pathways

    Le Xuan

    2009-01-01

    Full Text Available Background: Porphyromonas gingivalis, an important periodontal pathogen, is closely associated with inflammatory alveolar bone resorption. This bacterium exerts its pathogenic effect indirectly through multiple virulence factors, such as lipopolysaccharides, fimbriae, and proteases. Another possible pathogenic path may be through a direct interaction with the host′s soft and hard tissues (e.g., alveolar bone, which could lead to periodontitis. Aims and Objectives: The aim of the present study was to investigate the direct effect of live and heat-inactivated P gingivalis on bone resorption, using an in vitro osteoblast culture model. Results: Optical microscopy and 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide MTT assay revealed that live P gingivalis induced osteoblast detachment and reduced their proliferation. This effect was specific to live bacteria and was dependent on their concentration. Live P gingivalis increased IL-6 mRNA expression and protein production and downregulated RANKL and OPG mRNA expression. The effect of live P gingivalis on bone resorption was strengthened by an increase in MMP-9 expression and its activity. This increase was accompanied by an increase in TIMP-1 and TIMP-2 mRNA expression and protein production by osteoblasts infected with live P gingivalis. Conclusion: Overall, the results suggest that direct contact of P gingivalis with osteoblasts induces bone resorption through an inflammatory pathway that involves IL-6, RANKL/OPG, and MMP-9/TIMPs.

  19. Electrospun fiber membranes enable proliferation of genetically modified cells

    Borjigin M

    2013-02-01

    Full Text Available Mandula Borjigin*, Chris Eskridge*, Rohina Niamat, Bryan Strouse, Pawel Bialk, Eric B KmiecDepartment of Chemistry, Delaware State University, Dover, DE, USA *These authors contributed equally to this work Abstract: Polycaprolactone (PCL and its blended composites (chitosan, gelatin, and lecithin are well-established biomaterials that can enrich cell growth and enable tissue engineering. However, their application in the recovery and proliferation of genetically modified cells has not been studied. In the study reported here, we fabricated PCL-biomaterial blended fiber membranes, characterized them using physicochemical techniques, and used them as templates for the growth of genetically modified HCT116-19 colon cancer cells. Our data show that the blended polymers are highly miscible and form homogenous electrospun fiber membranes of uniform texture. The aligned PCL nanofibers support robust cell growth, yielding a 2.5-fold higher proliferation rate than cells plated on standard plastic plate surfaces. PCL-lecithin fiber membranes yielded a 2.7-fold higher rate of proliferation, while PCL-chitosan supported a more modest growth rate (1.5-fold higher. Surprisingly, PCL-gelatin did not enhance cell proliferation when compared to the rate of cell growth on plastic surfaces. Keywords: nanofibers, PCL-biomaterial blends, miscibility, gene editing, cell proliferation

  20. Legionella pneumophila prevents proliferation of its natural host Acanthamoeba castellanii

    Mengue, Luce; Régnacq, Matthieu; Aucher, Willy; Portier, Emilie; Héchard, Yann; Samba-Louaka, Ascel

    2016-01-01

    Legionella pneumophila is a ubiquitous, pathogenic, Gram-negative bacterium responsible for legionellosis. Like many other amoeba-resistant microorganisms, L. pneumophila resists host clearance and multiplies inside the cell. Through its Dot/Icm type IV secretion system, the bacterium injects more than three hundred effectors that modulate host cell physiology in order to promote its own intracellular replication. Here we report that L. pneumophila prevents proliferation of its natural host Acanthamoeba castellanii. Infected amoebae could not undergo DNA replication and no cell division was observed. The Dot/Icm secretion system was necessary for L. pneumophila to prevent the eukaryotic proliferation. The absence of proliferation was associated with altered amoebal morphology and with a decrease of mRNA transcript levels of CDC2b, a putative regulator of the A. castellanii cell cycle. Complementation of CDC28-deficient Saccharomyces cerevisiae by the CDC2b cDNA was sufficient to restore proliferation of CDC28-deficient S. cerevisiae and suggests for the first time that CDC2b from A. castellanii could be functional and a bona fide cyclin-dependent kinase. Hence, our results reveal that L. pneumophila impairs proliferation of A. castellanii and this effect could involve the cell cycle protein CDC2b. PMID:27805070

  1. Epidermal growth factor mediates spermatogonial proliferation in newt testis

    Abé Shin-ichi

    2008-02-01

    Full Text Available Abstract The complex processes of spermatogenesis are regulated by various factors. The aim of the current study is to determine the effect of epidermal growth factor (EGF on spermatogonial proliferation and clarify the mechanism causing the proliferation in newt testis. In the organ culture, EGF stimulated spermatogonial proliferation, but not their differentiation into spermatocytes. cDNA cloning identified 3 members of the EGF receptors, ErbB1, ErbB2, and ErbB4, in the testis. RT-PCR showed that all the receptors cloned were expressed in both Sertoli and germ cells at the spermatogonial stage. In the organ cultures with inhibitors for the EGF receptors, mitogen-activated protein kinase (MAPK, and phosphoinositide 3-kinase (PI3K, the EGF-induced spermatogonial proliferation was suppressed. Furthermore, when the organ culture was exposed to EGF, the expressions of stem cell factor (SCF, immunoglobulin-like domain containing neuregulin1 (Ig-NRG1, and ErbB4 mRNA were increased. These results suggested that, since the spermatogonia are sequestered within cysts by the blood-testis barrier consisted of Sertoli cells, EGF possibly mediates spermatogonial proliferation in an endocrine manner through the receptors including ErbB1, ErbB2, and ErbB4 expressed on Sertoli cells via activation of MAPK cascade or/and PI3K cascade by elevating the expressions of SCF, Ig-NRG1, and ErbB4.

  2. Relationship between Cell Proliferation and Apoptosis in Cervical Carcinoma

    2002-01-01

    Objective To study the relationship between cell proliferation and apoptosis in cervical carcinoma and its clinical significance.Methods The cell proliferation and apoptosis of cervical epithelial cells in archival formalin-fixed,paraffin-embedded tissue sections of normal cervix ,cervical intraepithelial neoplasms(CN) and cervical squamous carcinoma were tested by using immunohistochemistry assay and DNA nick end-labeling technigue.The proliferation index(PI) and apoptosis index(AI) were calculated and their correlation with clinical and pathological data was analyzed. Results PI was gradually increased,but the AI and AI/PI ratio decreased from normal cervical epithelium,CIN to cervical carcinoma. There was no significant relationship among cell proliferation,apoptosis,clinical stages and pathological grades.High AI was always asso-ciated with a poor prognosis of the patients. Conclusion Cell proliferation and apoptosis allow to distinguish among normal epithelium,CIN and cervical carcinoma and are useful for the assessment of the malignant potential of tumor tissues.

  3. Dicer-dependent pathways regulate chondrocyte proliferation and differentiation.

    Kobayashi, Tatsuya; Lu, Jun; Cobb, Bradley S; Rodda, Stephen J; McMahon, Andrew P; Schipani, Ernestina; Merkenschlager, Matthias; Kronenberg, Henry M

    2008-02-12

    Small noncoding RNAs, microRNAs (miRNAs), bind to messenger RNAs through base pairing to suppress gene expression. Despite accumulating evidence that miRNAs play critical roles in various biological processes across diverse organisms, their roles in mammalian skeletal development have not been demonstrated. Here, we show that Dicer, an essential component for biogenesis of miRNAs, is essential for normal skeletal development. Dicer-null growth plates show a progressive reduction in the proliferating pool of chondrocytes, leading to severe skeletal growth defects and premature death of mice. The reduction of proliferating chondrocytes in Dicer-null growth plates is caused by two distinct mechanisms: decreased chondrocyte proliferation and accelerated differentiation into postmitotic hypertrophic chondrocytes. These defects appear to be caused by mechanisms downstream or independent of the Ihh-PTHrP signaling pathway, a pivotal signaling system that regulates chondrocyte proliferation and differentiation. Microarray analysis of Dicer-null chondrocytes showed limited expression changes in miRNA-target genes, suggesting that, in the majority of cases, chondrocytic miRNAs do not directly regulate target RNA abundance. Our results demonstrate the critical role of the Dicer-dependent pathway in the regulation of chondrocyte proliferation and differentiation during skeletal development.

  4. Fatty acid metabolites in rapidly proliferating breast cancer.

    Joseph T O'Flaherty

    Full Text Available PURPOSE: Breast cancers that over-express a lipoxygenase or cyclooxygenase are associated with poor survival possibly because they overproduce metabolites that alter the cancer's malignant behaviors. However, these metabolites and behaviors have not been identified. We here identify which metabolites among those that stimulate breast cancer cell proliferation in vitro are associated with rapidly proliferating breast cancer. EXPERIMENTAL DESIGN: We used selective ion monitoring-mass spectrometry to quantify in the cancer and normal breast tissue of 27 patients metabolites that stimulate (15-, 12-, 5-hydroxy-, and 5-oxo-eicosatetraenoate, 13-hydroxy-octadecaenoate [HODE] or inhibit (prostaglandin [PG]E2 and D2 breast cancer cell proliferation. We then related their levels to each cancer's proliferation rate as defined by its Mib1 score. RESULTS: 13-HODE was the only metabolite strongly, significantly, and positively associated with Mib1 scores. It was similarly associated with aggressive grade and a key component of grade, mitosis, and also trended to be associated with lymph node metastasis. PGE2 and PGD2 trended to be negatively associated with these markers. No other metabolite in cancer and no metabolite in normal tissue had this profile of associations. CONCLUSIONS: Our data fit a model wherein the overproduction of 13-HODE by 15-lipoxygenase-1 shortens breast cancer survival by stimulating its cells to proliferate and possibly metastasize; no other oxygenase-metabolite pathway, including cyclooxygenase-PGE2/D2 pathways, uses this specific mechanism to shorten survival.

  5. International nuclear proliferation: multilateral diplomacy and regional aspects

    Kapur, A.

    1979-01-01

    Confidential interviews with about 200 officials at 18 nuclear research sites around the world form the background for this discussion of the proliferation issues as they affect the Nuclear Non-Proliferation Treaty (NPT). Critics of the NPT cite its narrow focus on horizontal proliferation and its failures in the areas of vertical proliferation, nuclear technology transfers, heavy-water-reactor systems, and safeguards. The international negotiations necessary to resolve these issues and the difficulty of reaching a global consensus indicate a need to restructure the U.S. decision process before diplomacy can progress. The book discusses the history and nature of proliferation and its relationship to multinational diplomacy; the problems of permanent and workable safeguards; and regional political ramifications in the creeping dependencies of South Asia, apartheid in South Africa, militarization in Japan, and the nuclearization of Brazil and Argentina. The analysis concludes that central issues were not settled by the NPT and that U.S. failures to speak without consulting allies may mean that a bilateral rather than multinational approach should be tried. 105 references, 5 figures, 12 tables. (DCK)

  6. Role of gastric blood flow, neutrophil infiltration, and mucosal cell proliferation in gastric adaptation to aspirin in the rat.

    Konturek, S J; Brzozowski, T; Stachura, J; Dembinski, A; Majka, J

    1994-01-01

    Gastric mucosa exhibits the ability to adapt to ulcerogenic action of aspirin but the mechanism of this phenomenon is unknown. In this study, acute gastric lesions were produced by single or repeated doses of acidified aspirin in rats with intact or resected salivary glands and with intact or suppressed synthase of nitric oxide. A single oral dose of aspirin produced a dose dependent increase in gastric lesions accompanied by considerable blood neutrophilia and mucosal neutrophil infiltration, significant reduction in gastric blood flow, and almost complete suppression of biosynthesis of prostaglandins. After rechallenge with aspirin, the mucosal damage became smaller and progressively declined with repeated aspirin insults. Gastric adaptation to aspirin was accompanied by a significant rise in gastric blood flow, reduction in both blood neutrophilia and mucosal neutrophil infiltration, and a remarkable increase in mucosal cell regeneration and mucosal content of epidermal growth factor. Salivectomy, which reduced the mucosal content of epidermal growth factor, aggravated the initial mucosal damage induced by the first exposure to acidified aspirin but did not prevent the adaptation of this mucosa to repeated aspirin insults. Pretreatment with NG-nitro-L-arginine (L-NNA), a specific inhibitor of nitric oxide synthase, eliminated the hyperaemic response to repeated aspirin but did not abolish the development of adaptation to aspirin showing that the maintenance of the gastric blood flow plays little part in this adaptation. In conclusion, the stomach adapts readily to repeated aspirin insults and this is accompanied by a considerable reduction in blood neutrophilia and the severity of neutrophil infiltration and by an extensive proliferation of mucosal cells possibly involving epidermal growth factor. PMID:7525421

  7. Cissus quadrangularis L. extract attenuates chronic ulcer by possible involvement of polyamines and proliferating cell nuclear antigen

    Mallika Jainu

    2010-01-01

    Full Text Available The present study was designed to investigate whether Cissus quandrangularis extract (CQE had healing effects on gastric ulcer, through modulation of polyamines and proliferating cell nuclear antigen (PCNA in rats. Administration of acetic acid (AA was accompanied by reduced PCNA which was determined by immunohistochemical staining, 3 H-thymidine incorporation using liquid scintillation spectrometry, mitochondrial marker enzymes, polyamine contents and transforming growth factor-alpha (TGF-a expression in gastric mucosa of rats. Administration of CQE after the application of AA to the stomach enhanced the reduction of ulcer area in a dose-dependent manner which was confirmed by histoarchitecture. Moreover, CQE significantly increased the 3 H-thymidine incorporation and the levels of polyamines such as putrescine, spermine and spermidine in ulcerated rats. In addition, the extract offers gastroprotection in the ulcerated area by increased expression of TGF-a and also reversed the changes in the gastric mucosa of ulcerated rats with significant elevation in mitochondrial tricarboxylic acid (TCA cycle enzymes and PCNA levels. Based on these results, the healing effect of CQE on AA induced gastric mucosal injury in rats may be attributed to its growth promoting and cytoprotective actions, possibly involving an increase in tissue polyamine contents and cell proliferation.

  8. Alternol inhibits the proliferation and induces the differentiation of the mouse melanoma B16F0 cell line.

    Wang, Caixia; Xu, Wenjuan; Hao, Wenjin; Wang, Bingsheng; Zheng, Qiusheng

    2016-08-01

    High malignant potential and low susceptibility to treatment are characteristics of malignant melanoma. Alternol, a novel compound purified from microbial fermentation products obtained from the bark of the yew tree, exhibits a variety of antitumor activities. Based on these findings, the aim of the present study was to extend the knowledge on the antineoplastic effect of alternol in the mouse melanoma B16F0 cell line. Alternol significantly inhibited the proliferation and colony formation of B16F0 cells in a dose-dependent manner as detected by MTT and soft agar colony formation assays. NaOH alkaline lysis and oxidation of Dopa indicated that alternol enhanced the melanin content and tyrosinase activity of the B16F0 cells and results also showed a dose‑response relationship. Morphologic changes accompanied by extended dendrites were discovered in the B16F0 cells after treatment with alternol. Furthermore, the mRNA levels of tyrosinase, Trp1 and Trp2 were increased by alternol. Our results confirmed that alternol possesses marked antineoplastic properties against melanoma cells, indicating that this microbial fermentation product is a promising agent for the differentiation therapy of cancer. The inhibition of cell proliferation and colony formation by alternol was associated with both cytotoxicity and induction of differentiation.

  9. Salinomycin inhibits proliferation and induces apoptosis of human nasopharyngeal carcinoma cell in vitro and suppresses tumor growth in vivo

    Wu, Danxin; Zhang, Yu; Huang, Jie; Fan, Zirong; Shi, Fengrong; Wang, Senming, E-mail: wsenming@126.com

    2014-01-10

    Highlight: •We first evaluated the effect of salinomycin on nasopharyngeal carcinoma (NPC). •Salinomycin could inhibit Wnt/β-catenin signaling and induce apoptosis in NPC. •So salinomycin may be a good potential candidate for the chemotherapy of NPC. -- Abstract: Salinomycin (Sal) is a polyether ionophore antibiotic that has recently been shown to induce cell death in various human cancer cells. However, whether salinomycin plays a functional role in nasopharyngeal carcinoma (NPC) has not been determined to date. The present study investigated the chemotherapeutic efficacy of salinomycin and its molecular mechanisms of action in NPC cells. Salinomycin efficiently inhibited proliferation and invasion of 3 NPC cell lines (CNE-1, CNE-2, and CNE-2/DDP) and activated a extensive apoptotic process that is accompanied by activation of caspase-3 and caspase-9, and decreased mitochondrial membrane potential. Meanwhile, the protein expression level of the Wnt coreceptor lipoprotein receptor related protein 6 (LRP6) and β-catenin was down-regulated, which showed that the Wnt/β-catenin signaling was involved in salinomycin-induced apoptosis of NPC cells. In a nude mouse NPC xenograft model, the anti-tumor effect of salinomycin was associated with the downregulation of β-catenin expression. The present study demonstrated that salinomycin can effectively inhibit proliferation and invasion, and induce apoptosis of NPC cells in vitro and inhibit tumor growth in vivo, probably via the inhibition of Wnt/β-catenin signaling, suggesting salinomycin as a potential candidate for the chemotherapy of NPC.

  10. Salinomycin inhibits proliferation and induces apoptosis of human nasopharyngeal carcinoma cell in vitro and suppresses tumor growth in vivo.

    Wu, Danxin; Zhang, Yu; Huang, Jie; Fan, Zirong; Shi, Fengrong; Wang, Senming

    2014-01-10

    Salinomycin (Sal) is a polyether ionophore antibiotic that has recently been shown to induce cell death in various human cancer cells. However, whether salinomycin plays a functional role in nasopharyngeal carcinoma (NPC) has not been determined to date. The present study investigated the chemotherapeutic efficacy of salinomycin and its molecular mechanisms of action in NPC cells. Salinomycin efficiently inhibited proliferation and invasion of 3 NPC cell lines (CNE-1, CNE-2, and CNE-2/DDP) and activated a extensive apoptotic process that is accompanied by activation of caspase-3 and caspase-9, and decreased mitochondrial membrane potential. Meanwhile, the protein expression level of the Wnt coreceptor lipoprotein receptor related protein 6 (LRP6) and β-catenin was down-regulated, which showed that the Wnt/β-catenin signaling was involved in salinomycin-induced apoptosis of NPC cells. In a nude mouse NPC xenograft model, the anti-tumor effect of salinomycin was associated with the downregulation of β-catenin expression. The present study demonstrated that salinomycin can effectively inhibit proliferation and invasion, and induce apoptosis of NPC cells in vitro and inhibit tumor growth in vivo, probably via the inhibition of Wnt/β-catenin signaling, suggesting salinomycin as a potential candidate for the chemotherapy of NPC.

  11. Effects of non-steroidal anti-inflammatory drugs on proliferation, differentiation and migration in equine mesenchymal stem cells.

    Müller, Maike; Raabe, Oksana; Addicks, Klaus; Wenisch, Sabine; Arnhold, Stefan

    2011-03-01

    In equine medicine, stem cell therapies for orthopaedic diseases are routinely accompanied by application of NSAIDs (non-steroidal anti-inflammatory drugs). Thus, it has to be analysed how NSAIDs actually affect the growth and differentiation potential of MSCs (mesenchymal stem cells) in vitro in order to predict the influence of NSAIDs such as phenylbutazone, meloxicam, celecoxib and flunixin on MSCs after grafting in vivo. The effects of NSAIDs were evaluated regarding cell viability and proliferation. Additionally, the multilineage differentiation capacity and cell migration was analysed. NSAIDs at lower concentrations (0.1-1 μM for celecoxib and meloxicam and 10-50 μM for flunixin) exert a positive effect on cell proliferation and migration, while at higher concentrations (10-200 μM for celecoxib and meloxicam and 100-1000 μM for flunixin and phenylbutazone), there is rather a negative influence. While there is hardly any influence on the adipogenic as well as on the chondrogenic MSC differentiation, the osteogenic differentiation potential, as demonstrated with the von Kossa staining, is significantly disturbed. Thus, it can be concluded that the effects of NSAIDs on MSCs are largely dependent on the concentrations used. Additionally, for some differentiation lineages, also the choice of NSAID is critical.

  12. Fatty acid synthase as a factor required for exercise-induced cognitive enhancement and dentate gyrus cellular proliferation.

    Chorna, Nataliya E; Santos-Soto, Iván J; Carballeira, Nestor M; Morales, Joan L; de la Nuez, Janneliz; Cátala-Valentin, Alma; Chornyy, Anatoliy P; Vázquez-Montes, Adrinel; De Ortiz, Sandra Peña

    2013-01-01

    Voluntary running is a robust inducer of adult hippocampal neurogenesis. Given that fatty acid synthase (FASN), the key enzyme for de novo fatty acid biosynthesis, is critically involved in proliferation of embryonic and adult neural stem cells, we hypothesized that FASN could mediate both exercise-induced cell proliferation in the subgranular zone (SGZ) of the dentate gyrus (DG) and enhancement of spatial learning and memory. In 20 week-old male mice, voluntary running-induced hippocampal-specific upregulation of FASN was accompanied also by hippocampal-specific accumulation of palmitate and stearate saturated fatty acids. In experiments addressing the functional role of FASN in our experimental model, chronic intracerebroventricular (i.c.v.) microinfusions of C75, an irreversible FASN inhibitor, and significantly impaired exercise-mediated improvements in spatial learning and memory in the Barnes maze. Unlike the vehicle-injected mice, the C75 group adopted a non-spatial serial escape strategy and displayed delayed escape latencies during acquisition and memory tests. Furthermore, pharmacologic blockade of FASN function with C75 resulted in a significant reduction, compared to vehicle treated controls, of the number of proliferative cells in the DG of running mice as measured by immunoreactive to Ki-67 in the SGZ. Taken together, our data suggest that FASN plays an important role in exercise-mediated cognitive enhancement, which might be associated to its role in modulating exercise-induced stimulation of neurogenesis.

  13. Fatty acid synthase as a factor required for exercise-induced cognitive enhancement and dentate gyrus cellular proliferation.

    Nataliya E Chorna

    Full Text Available Voluntary running is a robust inducer of adult hippocampal neurogenesis. Given that fatty acid synthase (FASN, the key enzyme for de novo fatty acid biosynthesis, is critically involved in proliferation of embryonic and adult neural stem cells, we hypothesized that FASN could mediate both exercise-induced cell proliferation in the subgranular zone (SGZ of the dentate gyrus (DG and enhancement of spatial learning and memory. In 20 week-old male mice, voluntary running-induced hippocampal-specific upregulation of FASN was accompanied also by hippocampal-specific accumulation of palmitate and stearate saturated fatty acids. In experiments addressing the functional role of FASN in our experimental model, chronic intracerebroventricular (i.c.v. microinfusions of C75, an irreversible FASN inhibitor, and significantly impaired exercise-mediated improvements in spatial learning and memory in the Barnes maze. Unlike the vehicle-injected mice, the C75 group adopted a non-spatial serial escape strategy and displayed delayed escape latencies during acquisition and memory tests. Furthermore, pharmacologic blockade of FASN function with C75 resulted in a significant reduction, compared to vehicle treated controls, of the number of proliferative cells in the DG of running mice as measured by immunoreactive to Ki-67 in the SGZ. Taken together, our data suggest that FASN plays an important role in exercise-mediated cognitive enhancement, which might be associated to its role in modulating exercise-induced stimulation of neurogenesis.

  14. Inhibition of glycogen synthase kinase-3 enhances the differentiation and reduces the proliferation of adult human olfactory epithelium neural precursors

    Manceur, Aziza P. [Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario (Canada); Donnelly Centre, University of Toronto, Toronto, Ontario (Canada); Tseng, Michael [Laboratory of Cellular and Molecular Pathophysiology, Centre for Addiction and Mental Health (CAMH), University of Toronto, Toronto, Ontario (Canada); Department of Psychiatry, University of Toronto, Toronto, ON (Canada); Institute of Medical Science, University of Toronto, Toronto, ON (Canada); Holowacz, Tamara [Donnelly Centre, University of Toronto, Toronto, Ontario (Canada); Witterick, Ian [Institute of Medical Science, University of Toronto, Toronto, ON (Canada); Department of Otolaryngology, Head and Neck Surgery, University of Toronto, ON (Canada); Weksberg, Rosanna [Institute of Medical Science, University of Toronto, Toronto, ON (Canada); The Hospital for Sick Children, Research Institute, Program in Genetics and Genomic Biology, Toronto, Ontario Canada (Canada); McCurdy, Richard D. [The Hospital for Sick Children, Research Institute, Program in Genetics and Genomic Biology, Toronto, Ontario Canada (Canada); Warsh, Jerry J. [Laboratory of Cellular and Molecular Pathophysiology, Centre for Addiction and Mental Health (CAMH), University of Toronto, Toronto, Ontario (Canada); Department of Psychiatry, University of Toronto, Toronto, ON (Canada); Institute of Medical Science, University of Toronto, Toronto, ON (Canada); Audet, Julie, E-mail: julie.audet@utoronto.ca [Institute of Biomaterials and Biomedical Engineering (IBBME), University of Toronto, Toronto, Ontario (Canada); Donnelly Centre, University of Toronto, Toronto, Ontario (Canada)

    2011-09-10

    The olfactory epithelium (OE) contains neural precursor cells which can be easily harvested from a minimally invasive nasal biopsy, making them a valuable cell source to study human neural cell lineages in health and disease. Glycogen synthase kinase-3 (GSK-3) has been implicated in the etiology and treatment of neuropsychiatric disorders and also in the regulation of murine neural precursor cell fate in vitro and in vivo. In this study, we examined the impact of decreased GSK-3 activity on the fate of adult human OE neural precursors in vitro. GSK-3 inhibition was achieved using ATP-competitive (6-bromoindirubin-3'-oxime and CHIR99021) or substrate-competitive (TAT-eIF2B) inhibitors to eliminate potential confounding effects on cell fate due to off-target kinase inhibition. GSK-3 inhibitors decreased the number of neural precursor cells in OE cell cultures through a reduction in proliferation. Decreased proliferation was not associated with a reduction in cell survival but was accompanied by a reduction in nestin expression and a substantial increase in the expression of the neuronal differentiation markers MAP1B and neurofilament (NF-M) after 10 days in culture. Taken together, these results suggest that GSK-3 inhibition promotes the early stages of neuronal differentiation in cultures of adult human neural precursors and provide insights into the mechanisms by which alterations in GSK-3 signaling affect adult human neurogenesis, a cellular process strongly suspected to play a role in the etiology of neuropsychiatric disorders.

  15. Calcitriol inhibits Ether-a go-go potassium channel expression and cell proliferation in human breast cancer cells

    Garcia-Becerra, Rocio [Department of Reproductive Biology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico); Diaz, Lorenza, E-mail: lorenzadiaz@gmail.com [Department of Reproductive Biology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico); Camacho, Javier [Department of Pharmacology, Centro de Investigacion y de Estudios Avanzados, Instituto Politecnico Nacional, Av. Instituto Politecnico Nacional 2508, San Pedro Zacatenco 07360, Mexico, D.F. (Mexico); Barrera, David; Ordaz-Rosado, David; Morales, Angelica [Department of Reproductive Biology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico); Ortiz, Cindy Sharon [Department of Pathology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico); Avila, Euclides [Department of Reproductive Biology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico); Bargallo, Enrique [Department of Breast Tumors, Instituto Nacional de Cancerologia, Av. San Fernando No. 22, Tlalpan 14080, Mexico, D.F. (Mexico); Arrecillas, Myrna [Department of Pathology, Instituto Nacional de Cancerologia, Av. San Fernando No. 22, Tlalpan 14080, Mexico, D.F. (Mexico); Halhali, Ali; Larrea, Fernando [Department of Reproductive Biology, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Vasco de Quiroga No. 15, Tlalpan 14000 Mexico, D.F. (Mexico)

    2010-02-01

    Antiproliferative actions of calcitriol have been shown to occur in many cell types; however, little is known regarding the molecular basis of this process in breast carcinoma. Ether-a-go-go (Eag1) potassium channels promote oncogenesis and are implicated in breast cancer cell proliferation. Since calcitriol displays antineoplastic effects while Eag1 promotes tumorigenesis, and both factors antagonically regulate cell cycle progression, we investigated a possible regulatory effect of calcitriol upon Eag1 as a mean to uncover new molecular events involved in the antiproliferative activity of this hormone in human breast tumor-derived cells. RT real-time PCR and immunocytochemistry showed that calcitriol suppressed Eag1 expression by a vitamin D receptor (VDR)-dependent mechanism. This effect was accompanied by inhibition of cell proliferation, which was potentiated by astemizole, a nonspecific Eag1 inhibitor. Immunohistochemistry and Western blot demonstrated that Eag1 and VDR abundance was higher in invasive-ductal carcinoma than in fibroadenoma, and immunoreactivity of both proteins was located in ductal epithelial cells. Our results provide evidence of a novel mechanism involved in the antiproliferative effects of calcitriol and highlight VDR as a cancer therapeutic target for breast cancer treatment and prevention.

  16. Sedum sarmentosum Bunge extract induces apoptosis and inhibits proliferation in pancreatic cancer cells via the hedgehog signaling pathway.

    Bai, Yongheng; Chen, Bicheng; Hong, Weilong; Liang, Yong; Zhou, Mengtao; Zhou, Lan

    2016-05-01

    Sedum sarmentosum Bunge, a traditional Chinese herbal medicine, has a wide range of clinical applications including antibiosis, anti-inflammation and anti-oxidation. In the present study, we identified that its extract (SSBE) exerts pancreatic anticancer activity in vitro and in vivo. In the cultured pancreatic cancer PANC-1 cell line, SSBE inhibited cell growth in a concentration-dependent manner, and it was accompanied by the downregulated expression of proliferating cell nuclear antigen (PCNA). In addition, SSBE treatment also increased cellular apoptosis in a mitochondrial-dependent manner. Moreover, SSBE induced p53 expression, reduced c-Myc expression, and inhibited epithelial-mesenchymal transition (EMT). The antiproliferative activity of SSBE in the pancreatic cancer cells was found to be closely related to cell cycle arrest at the G2/M phase by upregulating p21(Waf1/CIP1) expression. Further study showed that this inhibitory effect of SSBE was through downregulation of the activity of the proliferation-related Hedgehog signaling pathway. Exogenous recombinant protein Shh was used to activate Hedgehog signaling, thereby resulting in the abolishment of the SSBE-mediated inhibition of pancreatic cancer cell growth. In animal xenograft models of pancreatic cancer, activated Hedgehog signaling was also observed compared with the vehicle controls, but was reduced by SSBE administration. As a result, SSBE suppressed the growth of pancreatic tumors. Thus, these findings demonstrate that SSBE has therapeutic potential for pancreatic cancer, and this anticancer effect in pancreatic cancer cells is associated with inhibition of the Hedgehog signaling pathway.

  17. The Long Non-Coding RNA ENST00000537266 and ENST00000426615 Influence Papillary Thyroid Cancer Cell Proliferation and Motility

    Bo Xu

    2016-01-01

    Full Text Available Background/Aims: Papillary thyroid cancer (PTC is the most common histotype of Thyroid cancer (TC. Here, we detected the differentially expressed lncRNAs in tumor tissues and non-tumor tissues of PTC patients by lncRNA microarrays, and explored the function and molecular mechanisms of lncRNAs in the pathogenesis of PTC using a PTC cell line. Methods: CCK-8 assay, colony formation assay and EdU assay were used to detect the cell viability. Flow Cytometry was used to detect the cell cycle and apoptosis. Transwell and scratch assay were used to detect the cell motility. Results: CCK-8 assay, colony formation assay and EdU assay revealed that lncRNAs (ENST00000537266 and ENST00000426615 could inhibit cell proliferation. Cell cycle analysis showed that cell proportion was statistically significant increased in G1 phase and decreased in S phase and G2 phase in Si-266 transfected TPC-1 cells. In addition, a noteworthy increase of cell proportion in G1 phase accompanied by a decrease in S phase and unchanged G2 phase in Si-615 transfected TPC-1 cells were also observed. Meanwhile, transwell and scratch assay showed that ENST00000426615 could inhibit the cell motility while ENST00000537266 could not. Conclusion: Our results showed that lncRNAs (ENST00000426615 and ENST00000537266 might be important regulators of PTC cell proliferation and motility, which might provide new insight into the understanding of PTC pathogenesis.

  18. Proliferating trichilemmal tumour: a case report with review of literature

    A. Bhagya Lakshmi

    2014-06-01

    Full Text Available Proliferating trichilemmal tumour is a solid-cystic neoplasm that shows trichilemmal differentiation similar to that of the isthmus of the hair follicle histologically characteristed by the presence of trichilemmal keratinization. Proliferating Trichilemmal Tumour (PTT appears mainly in elderly women and is in general a solitary lesion on the scalp. Proliferating trichilemmal tumours generally have a benign clinical course, and a clinical differentiation from squamous cell carcinoma is often difficult. We report a case of PTT in a 30 year old man presenting as a solitary 10x8 cm ulcerated nodule on the scalp since 3 months clinically resembled a malignant tumour. The therapeutic approach is surgical removal with a wide clear margin. [Int J Res Med Sci 2014; 2(3.000: 1223-1225

  19. Lymphocytes in patients with psoriasis promote proliferation of keratinocytes

    DENG An-mei; ZHONG Ren-qian; CHEN Sun-xiao; ZHOU Ye; KONG Xian-tao

    2002-01-01

    Objective: To analyze the effect of lymphocytes on proliferation of keratinocytes in patients with psoriasis. Methods: Lymphocytes in lesion and peripheral blood were isolated and amplified, then cultured together with normal keratinocytes. By MTT method, the living cells were quantified in the mixed culture.Results: Compared with normal controls, lymphocytes from lesion and peripheral blood of psoriasis both promote the proliferation of keratinocytes (P<0. 01 and P<0. 05 respectively). The concentrations of IL-2 and IFN-γ in the mixture of lesion lymphocytes and keratinocytes were significantly higher than that of controls.Tripterygium glycosides inhibited this promotion. Conclusion: Lymphocytes in patients with psoriasis (mainly Thl cell) play an important role in proliferation of keratinocytes. This psoriasis cell model is useful for studies on signal transduction in psoriasis.

  20. Estrogen receptors and cell proliferation in breast cancer.

    Ciocca, D R; Fanelli, M A

    1997-10-01

    Most of the actions of estrogens on the normal and abnormal mammary cells are mediated via estrogen receptors (ERs), including control of cell proliferation; however, there are also alternative pathways of estrogen action not involving ERs. Estrogens control several genes and proteins that induce the cells to enter the cell cycle (protooncogenes, growth factors); estrogens also act on proteins directly involved in the control of the cell cycle (cyclins), and moreover, estrogens stimulate the response of negative cell cycle regulators (p53, BRCA1). The next challenge for researchers is elucidating the integration of the interrelationships of the complex pathways involved in the control of cell proliferation. This brief review focuses on the mechanisms of estrogen action to control cell proliferation and the clinical implications in breast cancer. (Trends Endocrinol Metab 1997;8:313-321). (c) 1997, Elsevier Science Inc.

  1. 30 CFR 250.220 - If I propose activities in the Alaska OCS Region, what planning information must accompany the EP?

    2010-07-01

    ... activities in the Alaska OCS Region, what planning information must accompany the EP? If you propose exploration activities in the Alaska OCS Region, the following planning information must accompany your EP: (a... 30 Mineral Resources 2 2010-07-01 2010-07-01 false If I propose activities in the Alaska...

  2. 30 CFR 250.251 - If I propose activities in the Alaska OCS Region, what planning information must accompany the DPP?

    2010-07-01

    ... activities in the Alaska OCS Region, the following planning information must accompany your DPP: (a... 30 Mineral Resources 2 2010-07-01 2010-07-01 false If I propose activities in the Alaska OCS Region, what planning information must accompany the DPP? 250.251 Section 250.251 Mineral...

  3. 41 CFR 302-4.204 - If my spouse does not accompany me but travels unaccompanied at a different time, what per diem...

    2010-07-01

    ... accompany me but travels unaccompanied at a different time, what per diem rate will he/she receive? 302-4.204 Section 302-4.204 Public Contracts and Property Management Federal Travel Regulation System... my spouse does not accompany me but travels unaccompanied at a different time, what per diem...

  4. 钢琴即兴伴奏课的教学改革探讨%Impromptu piano accompaniment teaching reform

    李娜

    2015-01-01

    钢琴即兴伴奏是一门综合性课程,集音乐审美能力、和声理论知识、钢琴弹奏技术于一体,并且实践和理论的结核性较强,是相关专业学生的必须科目之一。然而受多因素的制约和影响,使得当下的教学实际成效并不乐观,因此对教学进行全方位改革具有重要性和必要性。下面本文将介绍钢琴即兴伴奏教学的目标与内容,并分析当下的教学现状,并将有效的改革对策提出,以此来推进钢琴即兴伴奏课的开展。%Piano impromptu accompaniment is a comprehensive course, music aesthetic ability, harmony theory knowledge, piano technology at an organic whole, and the practice and theory of n/med tuberculosis sex is stronger, is one of the relevant professional students must subject. However, restricted and influenced by many factors, the teaching real results of the present is not optimistic, so the comprehensive reform of the teaching has the importance and necessity. This article will introduce below impromptu piano accompaniment teaching goal and content, and analyze the status quo of teaching, and effective reform countermeasures, so as to promote piano improvisational accompaniment lesson.

  5. Analysis of 300 cases of doula accompany delivery%导乐陪伴分娩300例分析

    陈志兵; 蒋美玲; 张卫文

    2012-01-01

    Objective To investigate the impact on improving the quality of obstetric doula accompany delivery. Methods 600 pregnant women were randomly divided into 2 groups (300 cases) : Doula group deliveries throughout a work of serious and responsible,midwives have solid medical theory and extensive clinical experience implementing one - to - one companionship by a midwife; The control group was dealed with the conventional production process handling. Results Doula group vaginal delivery rate was higher than that of control group,and postpartumhemorrhage and neonatal asphyxia were significantly lower than the control group,the differences were statistically significant. Conclusion Doula accompany delivery is a humane medical service mode. Doula accompanied delivery childbirth course allows mothers to experience a healthy and pleasant,and make mother and child safety,health,and it is worthy of promotion.%目的 探讨导乐陪伴分娩对提高产科质量的影响.方法 将600例孕妇随机分为2组(各300例):导乐组分娩全程由一位工作认真负责、具有扎实的医学理论及丰富临床经验的助产士实施一对一陪伴;对照组按传统的模式进行常规产程处理.结果 导乐组阴道分娩率高于对照组,产后出血及新生儿窒息均明显低于对照组,差异均有统计学意义.结论 导乐陪伴分娩是一种人性化医学服务模式,可让母亲们经历健康而愉快的分娩历程,使母婴更加安全、健康,值得推广.

  6. Deformation effects in the alpha accompanied cold ternary fission of even-even {sup 244-260}Cf isotopes

    Santhosh, K.P.; Krishnan, Sreejith [Kannur University, School of Pure and Applied Physics, Payyanur, Kerala (India)

    2016-04-15

    Within the unified ternary fission model (UTFM), the alpha accompanied ternary fission of even-even {sup 244-260}Cf isotopes has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential. For the alpha accompanied ternary fission of the {sup 244}Cf isotope, the highest yield is obtained for the fragment combination {sup 108}Ru + {sup 4}He + {sup 132}Te, which contains the near doubly magic nucleus {sup 132}Te (N = 80, Z = 52). In the case of {sup 246}Cf and {sup 248}Cf isotopes, the highest yield is obtained for the fragment combinations with the near doubly magic nucleus {sup 134}Te (N = 82, Z = 52) as the heaviest fragment. The highest yield obtained for {sup 250}Cf, {sup 252}Cf, {sup 254}Cf, {sup 256}Cf, {sup 258}Cf and {sup 260}Cf isotopes is for the fragment combination with the doubly magic nucleus {sup 132}Sn (N = 82), Z = 50 as the heaviest fragment. We have included the effect of deformation and orientation of fragments and this has revealed that in addition to the closed shell effect, ground-state deformation also plays an important role in the calculation of the relative yield of favorable fragment combinations. The computed isotopic yields for the alpha accompanied ternary fission of the {sup 252}Cf isotope are found to be in agreement with the experimental data. The emission probability and kinetic energy of the long-range alpha particle is calculated for the various isotopes of Cf and are found to be in good agreement with the experimental data. (orig.)

  7. Chemosensitizing effects of carbon-based nanomaterials in cancer cells: enhanced apoptosis and inhibition of proliferation as underlying mechanisms

    Erdmann, Kati; Ringel, Jessica; Hampel, Silke; Rieger, Christiane; Huebner, Doreen; Wirth, Manfred P.; Fuessel, Susanne

    2014-10-01

    Recent studies have shown that carbon nanomaterials such as carbon nanofibres (CNFs) and multi-walled carbon nanotubes (CNTs) can exert antitumor activities themselves and sensitize cancer cells to conventional chemotherapeutics such as carboplatin and cisplatin. In the present study, the chemosensitizing effect of CNFs and CNTs on cancer cells of urological origin was investigated regarding the underlying mechanisms. Prostate cancer (DU-145, PC-3) and bladder cancer (EJ28) cells were treated with carbon nanomaterials (CNFs, CNTs) and chemotherapeutics (carboplatin, cisplatin) alone as well as in combination for 24 h. Forty-eight (EJ28) or 72 h (DU-145, PC-3) after the end of treatment the effects on cellular proliferation, clonogenic survival, cell death rate and cell cycle distribution were evaluated. Depending on the cell line, simultaneous administration of chemotherapeutics and carbon nanomaterials produced an additional inhibition of cellular proliferation and clonogenic survival of up to 77% and 98%, respectively, compared to the inhibitory effects of the chemotherapeutics alone. These strongly enhanced antiproliferative effects were accompanied by an elevated cell death rate, which was predominantly mediated via apoptosis and not by necrosis. The antitumor effects of combinations with CNTs were less pronounced than those with CNFs. The enhanced effects of the combinatory treatments on cellular function were mostly of additive to partly synergistic nature. Furthermore, cell cycle analysis demonstrated an arrest at the G2/M phase mediated by a monotreatment with chemotherapeutics. Following combinatory treatments, mostly less than or nearly additive increases of cell fractions in the G2/M phase could be observed. In conclusion, the pronounced chemosensitizing effects of CNFs and CNTs were mediated by an enhanced apoptosis and inhibition of proliferation. The combination of carbon-based nanomaterials and conventional chemotherapeutics represents a novel

  8. The vitamin D receptor inhibits the respiratory chain, contributing to the metabolic switch that is essential for cancer cell proliferation.

    Consiglio, Marco; Destefanis, Michele; Morena, Deborah; Foglizzo, Valentina; Forneris, Mattia; Pescarmona, Gianpiero; Silvagno, Francesca

    2014-01-01

    We recently described the mitochondrial localization and import of the vitamin D receptor (VDR) in actively proliferating HaCaT cells for the first time, but its role in the organelle remains unknown. Many metabolic intermediates that support cell growth are provided by the mitochondria; consequently, the identification of proteins that regulate mitochondrial metabolic pathways is of great interest, and we sought to understand whether VDR may modulate these pathways. We genetically silenced VDR in HaCaT cells and studied the effects on cell growth, mitochondrial metabolism and biosynthetic pathways. VDR knockdown resulted in robust growth inhibition, with accumulation in the G0G1 phase of the cell cycle and decreased accumulation in the M phase. The effects of VDR silencing on proliferation were confirmed in several human cancer cell lines. Decreased VDR expression was consistently observed in two different models of cell differentiation. The impairment of silenced HaCaT cell growth was accompanied by sharp increases in the mitochondrial membrane potential, which sensitized the cells to oxidative stress. We found that transcription of the subunits II and IV of cytochrome c oxidase was significantly increased upon VDR silencing. Accordingly, treatment of HaCaT cells with vitamin D downregulated both subunits, suggesting that VDR may inhibit the respiratory chain and redirect TCA intermediates toward biosynthesis, thus contributing to the metabolic switch that is typical of cancer cells. In order to explore this hypothesis, we examined various acetyl-CoA-dependent biosynthetic pathways, such as the mevalonate pathway (measured as cholesterol biosynthesis and prenylation of small GTPases), and histone acetylation levels; all of these pathways were inhibited by VDR silencing. These data provide evidence of the role of VDR as a gatekeeper of mitochondrial respiratory chain activity and a facilitator of the diversion of acetyl-CoA from the energy-producing TCA cycle

  9. Insulin and glucagon regulate pancreatic α-cell proliferation.

    Zhuo Liu

    Full Text Available Type 2 diabetes mellitus (T2DM results from insulin resistance and β-cell dysfunction, in the setting of hyperglucagonemia. Glucagon is a 29 amino acid peptide hormone, which is secreted from pancreatic α cells: excessively high circulating levels of glucagon lead to excessive hepatic glucose output. We investigated if α-cell numbers increase in T2DM and what factor (s regulate α-cell turnover. Lepr(db/Lepr(db (db/db mice were used as a T2DM model and αTC1 cells were used to study potential α-cell trophic factors. Here, we demonstrate that in db/db mice α-cell number and plasma glucagon levels increased as diabetes progressed. Insulin treatment (EC50 = 2 nM of α cells significantly increased α-cell proliferation in a concentration-dependent manner compared to non-insulin-treated α cells. Insulin up-regulated α-cell proliferation through the IR/IRS2/AKT/mTOR signaling pathway, and increased insulin-mediated proliferation was prevented by pretreatment with rapamycin, a specific mTOR inhibitor. GcgR antagonism resulted in reduced rates of cell proliferation in αTC1 cells. In addition, blockade of GcgRs in db/db mice improved glucose homeostasis, lessened α-cell proliferation, and increased intra-islet insulin content in β cells in db/db mice. These studies illustrate that pancreatic α-cell proliferation increases as diabetes develops, resulting in elevated plasma glucagon levels, and both insulin and glucagon are trophic factors to α-cells. Our current findings suggest that new therapeutic strategies for the treatment of T2DM may include targeting α cells and glucagon.

  10. [Retroperitoneal dedifferentiated liposarcoma extending into the iliocostal muscle and the quadratus lumborum muscle accompanied with bone formation: case report].

    Matsuura, H; Sakurai, M; Arima, K

    2001-12-01

    A 72-year-old man with back pain on the left side was admitted. Imaging analysis revealed a retroperitoneal mass and a mass in the left iliocostal muscle and the left quadratus lumborum muscle. The two masses could not be resected en bloc, and were resected separately. The clinicopathological findings of these tumors revealed dedifferentiated liposarcoma. The primary dedifferentiated liposarcoma appeared to have originated from the retroperitoneal space extending into the iliocostal muscle and the quadratus lumborum muscle. Then the mass was thought to have formed accompanied with osteogenesis.

  11. Macroscopic yielding in jammed solids is accompanied by a nonequilibrium first-order transition in particle trajectories

    Kawasaki, Takeshi; Berthier, Ludovic

    2016-08-01

    We use computer simulations to analyze the yielding transition during large-amplitude oscillatory shear of a simple model for soft jammed solids. Simultaneous analysis of global mechanical response and particle-scale motion demonstrates that macroscopic yielding, revealed by a smooth crossover in mechanical properties, is accompanied by a sudden change in the particle dynamics, which evolves from nondiffusive motion to irreversible diffusion as the amplitude of the shear is increased. We provide numerical evidence that this sharp change corresponds to a nonequilibrium first-order dynamic phase transition, thus establishing the existence of a well-defined microscopic dynamic signature of the yielding transition in amorphous materials in oscillatory shear.

  12. Autoimmune myelofibrosis accompanied by Sjögren's syndrome in a 47, XXX/46, XX mosaic woman.

    Takahashi, Tohru

    2014-01-01

    This report describes a patient with autoimmune myelofibrosis accompanied by Sjögren's syndrome (SS). A 36-year-old woman was admitted due to petechiae, purpura, gingival bleeding, dyspnea on exertion, and a lack of concentration. She had pancytopenia and was diagnosed with SS. A bone marrow study showed hypercellular marrow with reticulin fibrosis. Lymphocytic infiltrates and aggregates composed of a mixture of T and B cells in the marrow were also observed. A chromosomal analysis of the marrow cells showed 47, XXX and an analysis of peripheral lymphocytes revealed 47, XXX/46, XX mosaic results. The patient's cytopenia resolved following treatment with oral prednisolone.

  13. Hydrogen sulfide (H{sub 2}S)/cystathionine γ-lyase (CSE) pathway contributes to the proliferation of hepatoma cells

    Pan, Yan; Ye, Shuang; Yuan, Dexiao; Zhang, Jianghong; Bai, Yang; Shao, Chunlin, E-mail: clshao@shmu.edu.cn

    2014-05-15

    Highlights: • Inhibition of H{sub 2}S/CSE pathway strongly stimulates cellular apoptosis. • Inhibition of H{sub 2}S/CSE pathway suppresses cell growth by blocking EGFR pathway. • H{sub 2}S/CSE pathway is critical for maintaining the proliferation of hepatoma cells. - Abstract: Hydrogen sulfide (H{sub 2}S)/cystathionine γ-lyase (CSE) pathway has been demonstrated to play vital roles in physiology and pathophysiology. However, its role in tumor cell proliferation remains largely unclear. Here we found that CSE over-expressed in hepatoma HepG2 and PLC/PRF/5 cells. Inhibition of endogenous H{sub 2}S/CSE pathway drastically decreased the proliferation of HepG2 and PLC/PRF/5 cells, and it also enhanced ROS production and mitochondrial disruption, pronounced DNA damage and increased apoptosis. Moreover, this increase of apoptosis was associated with the activation of p53 and p21 accompanied by a decreased ratio of Bcl-2/Bax and up-regulation of phosphorylated c-Jun N-terminal kinase (JNK) and caspase-3 activity. In addition, the negative regulation of cell proliferation by inhibition of H{sub 2}S/CSE system correlated with the blockage of cell mitogenic and survival signal transduction of epidermal growth factor receptor (EGFR) via down-regulating the extracellular-signal-regulated kinase 1/2 (ERK1/2) activation. These results demonstrate that H{sub 2}S/CSE and its downstream pathway contribute to the proliferation of hepatoma cells, and inhibition of this pathway strongly suppress the excessive growth of hepatoma cells by stimulating mitochondrial apoptosis and suppressing cell growth signal transduction.

  14. p38 MAPK-Mediated Bmi-1 down-regulation and defective proliferation in ATM-deficient neural stem cells can be restored by Akt activation.

    Jeesun Kim

    Full Text Available A-T (ataxia telangiectasia is a genetic disease caused by a mutation in the Atm (A-T mutated gene that leads to neurodegeneration. Despite an increase in the numbers of studies in this area in recent years, the mechanisms underlying neurodegeneration in human A-T are still poorly understood. Previous studies demonstrated that neural stem cells (NSCs isolated from the subventricular zone (SVZ of Atm(-/- mouse brains show defective self-renewal and proliferation, which is accompanied by activation of chronic p38 mitogen-activated protein kinase (MAPK and a lower level of the polycomb protein Bmi-1. However, the mechanism underlying Bmi-1 down-regulation and its relevance to defective proliferation in Atm(-/- NSCs remained unclear. Here, we show that over-expression of Bmi-1 increases self-renewal and proliferation of Atm(-/- NSCs to normal, indicating that defective proliferation in Atm(-/- NSCs is a consequence of down-regulation of Bmi-1. We also demonstrate that epidermal growth factor (EGF-induced Akt phosphorylation renders Bmi-1 resistant to the proteasomal degradation, leading to its stabilization and accumulation in the nucleus. However, inhibition of the Akt-dependent Bmi-1 stabilizing process by p38 MAPK signaling reduces the levels of Bmi-1. Treatment of the Atm(-/- NSCs with a specific p38 MAPK inhibitor SB203580 extended Bmi-1 posttranscriptional turnover and H2A ubiquitination in Atm(-/- NSCs. Our observations demonstrate the molecular basis underlying the impairment of self-renewal and proliferation in Atm(-/- NSCs through the p38 MAPK-Akt-Bmi-1-p21 signaling pathway.

  15. The extracellular adherence protein (Eap) of Staphylococcus aureus acts as a proliferation and migration repressing factor that alters the cell morphology of keratinocytes.

    Eisenbeis, Janina; Peisker, Henrik; Backes, Christian S; Bur, Stephanie; Hölters, Sebastian; Thewes, Nicolas; Greiner, Markus; Junker, Christian; Schwarz, Eva C; Hoth, Markus; Junker, Kerstin; Preissner, Klaus T; Jacobs, Karin; Herrmann, Mathias; Bischoff, Markus

    2017-02-01

    Staphyloccocus aureus is a major human pathogen and a common cause for superficial and deep seated wound infections. The pathogen is equipped with a large arsenal of virulence factors, which facilitate attachment to various eukaryotic cell structures and modulate the host immune response. One of these factors is the extracellular adherence protein Eap, a member of the "secretable expanded repertoire adhesive molecules" (SERAM) protein family that possesses adhesive and immune modulatory properties. The secreted protein was previously shown to impair wound healing by interfering with host defense and neovascularization. However, its impact on keratinocyte proliferation and migration, two major steps in the re-epithelialization process of wounds, is not known. Here, we report that Eap affects the proliferation and migration capacities of keratinocytes by altering their morphology and adhesive properties. In particular, treatment of non-confluent HaCaT cell cultures with Eap resulted in cell morphology changes as well as a significant reduction in cell proliferation and migration. Eap-treated HaCaT cells changed their appearance from an oblong via a trapezoid to an astral-like shape, accompanied by decreases in cell volume and cell stiffness, and exhibited significantly increased cell adhesion. Eap had a similar influence on endothelial and cancer cells, indicative for a general effect of Eap on eukaryotic cell morphology and functions. Specifically, Eap was found to interfere with growth factor-stimulated activation of the mitogen-activated protein kinase (MAPK) pathway that is known to be responsible for cell shape modulation, induction of proliferation and migration of epithelial cells. Western blot analyses revealed that Eap blocked the phosphorylation of extracellular signal-regulated kinase 1 and 2 (Erk1/2) in keratinocyte growth factor (KGF)-stimulated HaCaT cells. Together, these data add another antagonistic mechanism of Eap in wound healing, whereby the

  16. Molecular structure and biological function of proliferating cell nuclear antigen

    2007-01-01

    Proliferating cell nuclear antigen (PCNA) is the core component of replication complex in eukaryote.As a processive factor of DNA polymerase delta, PCNA coordinates the replication process by interacting with various replication proteins. PCNA appears to play an essential role in many cell events, such as DNA damage repair, cell cycle regulation, and apoptosis, through the coordination or organization of different partners. PCNA is an essential factor in cell proliferation, and has clinical significance in tumor research. In this article we review the functional structure of PCNA, which acts as a function switch in different cell events.

  17. Nicotine as a mitogenic stimulus for pancreatic acinar cell proliferation

    Parimal Chowdhury; Kodetthoor B Udupa

    2006-01-01

    Cell proliferation is an important process in life for growth of normal and cancer cells. The signal transduction pathways activated during this process are strictly regulated. This editorial focuses on the role of nicotine,a mitogen, in the induction of signaling pathways resulting in proliferation of pancreatic tumor cells and compares these events with those in normal acinar cells isolated from the rat pancreas. The data shows striking similarities between these two cellular systems.In addition, the editorial reviews very recent literature of the contribution of MAPK signaling in cell lines associated with human diseases. A prospective cellular model of nicotine induced activation of MAPK cascade is presented.

  18. Inhibition of brain tumor cell proliferation by alternating electric fields

    Jeong, Hyesun; Oh, Seung-ick; Hong, Sunghoi, E-mail: shong21@korea.ac.kr, E-mail: radioyoon@korea.ac.kr [School of Biosystem and Biomedical Science, Korea University, Seoul 136-703 (Korea, Republic of); Sung, Jiwon; Jeong, Seonghoon; Yoon, Myonggeun, E-mail: shong21@korea.ac.kr, E-mail: radioyoon@korea.ac.kr [Department of Bio-convergence Engineering, Korea University, Seoul 136-703 (Korea, Republic of); Koh, Eui Kwan [Seoul Center, Korea Basic Science Institute, Seoul 136-713 (Korea, Republic of)

    2014-11-17

    This study was designed to investigate the mechanism by which electric fields affect cell function, and to determine the optimal conditions for electric field inhibition of cancer cell proliferation. Low-intensity (<2 V/cm) and intermediate-frequency (100–300 kHz) alternating electric fields were applied to glioblastoma cell lines. These electric fields inhibited cell proliferation by inducing cell cycle arrest and abnormal mitosis due to the malformation of microtubules. These effects were significantly dependent on the intensity and frequency of applied electric fields.

  19. GABA Regulates Stem Cell Proliferation before Nervous System Formation.

    Wang, Doris,; Kriegstein, Arnold; Ben-Ari, Yehezkel

    2008-01-01

    International audience; HISTONE H2AX-DEPENDENT GABAA RECEPTOR REGULATION OF STEM CELL PROLIFERATION: Andäng M, Hjerling-Leffler J, Moliner A, Lundgren TK, Castelo-Branco G, Nanou E, Pozas E, Bryja V, Halliez S, Nishimaru H, Wilbertz J, Arenas E, Koltzenburg M, Charnay P, El Manira A, Ibañez CF, Ernfors P. Nature20084517177:460-46418185516 Stem cell self-renewal implies proliferation under continued maintenance of multipotency. Small changes in numbers of stem cells may lead to large differenc...

  20. The Effect of Cultivated Wild Ginseng Extract on Preadipocyte Proliferation

    Byoung-Woo Kim

    2007-12-01

    Full Text Available Objectives : The purpose of this study is to investigate the effects of cultivated wild ginseng extract on primary cultured preadipocyte and adipocytes. Methods : Diminish preadipocyte proliferation does primary role to reduce obesity. So, preadipocytes and adipocytes were performed on cell cultures with using Sprague-Dawley rats and treated with 0.01-1mg/㎖ cultivated wild ginseng extract. Result : At all concentrations, cultivated wild ginseng extract wasn't show the suppress proliferation of preadipocytes significantly and failed to show effects on decomposition of adipocytes except high dosage. Conclusion : Based on these findings, cultivated wild ginseng is not a suitable choice for the treatment of localized obesity.

  1. Troglitazone inhibits cell proliferation by attenuation of epidermal growth factor receptor signaling independent of peroxisome proliferator-activated receptor γ

    Xiaoqi Li; Xuanming Yang; Youli Xu; Xuejun Jiang; Xin Li; Fajun Nan; Hong Tang

    2009-01-01

    Peroxisome proliferator-activated receptors (PPAR) belong to the nuclear hormone receptor superfamily of ligand-dependent transcription factors. Recent results have shown that agonists of PPARy, such as troglitazone (TGZ), can inhibit cell proliferation and promote cell differentiation independent of PPARγ. In the present study, we provide evidence that TGZ may bind directly to EGFR and trigger its signaling and internalization independent of PPARγ. Detailed studies revealed that prolonged incubation with TGZ effectively attenuated EGFR signaling by target-ing the receptor to the endo-lysosomal degradation machinery. Although the extracellular signal-regulated kinase-signaling pathway was transiently activated by TGZ in EGFR overexpressing cancer cells, inhibition of EGF-induced Akt phosphorylation most likely accounted for the growth arrest of tumor cells caused by TGZ at pharmacologically achievable concentrations. Therefore, we have provided a new line of evidence indicating that TGZ inhibits cell pro-liferation by promoting EGFR degradation and attenuating Akt phosphorylation.

  2. Increased postexercise insulin sensitivity is accompanied by increased AS160 phosphorylation in slow-twitch soleus muscle.

    Iwabe, Maiko; Kawamoto, Emi; Koshinaka, Keiichi; Kawanaka, Kentaro

    2014-12-01

    A single bout of exercise can enhance insulin-stimulated glucose uptake in both fast-twitch (type II) and slow-twitch (type I) skeletal muscle for several hours postexercise. Akt substrate of 160 kDa (AS160) is most distal insulin signaling proteins that have been proposed to contribute to the postexercise enhancement of insulin action in fast-twitch muscle. In this study, we examined whether the postexercise increase in insulin action of glucose uptake in slow-twitch muscle is accompanied by increased phosphorylation of AS160 and its paralog TBC1D1. Male Wistar rats (~1-month-old) were exercised on a treadmill for 180 min (9 m/min). Insulin (50 μU/mL)-stimulated glucose uptake was increased at 2 h after cessation of exercise in soleus muscle composed of predominantly slow-twitch fibers. This postexercise increase in insulin action of glucose uptake was accompanied by increased phosphorylation of AS160 (detected by phospho-Thr642 and phospho-Ser588 antibody). On the other hand, prior exercise did not increase phosphorylation of TBC1D1 (detected by phospho-Thr590) at 2 h postexercise. These results suggest the possibility that an enhancement in AS160 phosphorylation but not TBC1D1 phosphorylation is involved with increased postexercise insulin action of glucose uptake in slow-twitch muscle.

  3. The Clinical Research in Advanced Stage Gastric Cancer Accompanying Hemorrhage with EHLF Chemotherapy and Thrombin to Take Orally

    Chen Huoguo

    2003-01-01

    Purpose:Study therapeutic effectiveness about EHLF chemotherapy and thrombin to take orally in advanced stage gastriccancer accompanying hemorrhage.Methods:76 cases were divided into two groups at random,that were diagnosed by pathology andclinical. Research group included medicine:(etoposide)VP-16,100 mg intravenous drip,d1~3;(hydroxycamptothecin)HCPT, 10mg,ivtravenous drip,d1~5;(calciumfolinate)CF, 100 mg,intravenous drip,d1~5;(fluorouracil)5-Fu,0.5,intravenous drip,d1~5;thrombin,5oou,oral administration,three times in a day, d1~7.Matched control:normal regulation to medicine in gastric hemorrhye.Results:Effective rate in research group was 78.4%,obvious better than one in matched control 28.2%(P<0.01),bad reaction wasslight, life quantity was obvious exaltation.Conclusion:EHLF chemotherapy and thrombin to take orally was used as treatment project inadranced stage gastric cancer accompanying hemorrhage,good result in research group. It is worthy to deserve further reseach.

  4. Proteomic analysis of oil body membrane proteins accompanying the onset of desiccation phase during sunflower seed development.

    Thakur, Anita; Bhatla, Satish C

    2015-01-01

    A noteworthy metabolic signature accompanying oil body (OB) biogenesis during oilseed development is associated with the modulation of the oil body membranes proteins. Present work focuses on 2-dimensional polyacrylamide gel electrophoresis (2-D PAGE)-based analysis of the temporal changes in the OB membrane proteins analyzed by LC-MS/MS accompanying the onset of desiccation (20-30 d after anthesis; DAA) in the developing seeds of sunflower (Helianthus annuus L.). Protein spots unique to 20-30 DAA stages were picked up from 2-D gels for identification and the identified proteins were categorized into 7 functional classes. These include proteins involved in energy metabolism, reactive oxygen scavenging, proteolysis and protein turnover, signaling, oleosin and oil body biogenesis-associated proteins, desiccation and cytoskeleton. At 30 DAA stage, exclusive expressions of enzymes belonging to energy metabolism, desiccation and cytoskeleton were evident which indicated an increase in the metabolic and enzymatic activity in the cells at this stage of seed development (seed filling). Increased expression of cruciferina-like protein and dehydrin at 30 DAA stage marks the onset of desiccation. The data has been analyzed and discussed to highlight desiccation stage-associated metabolic events during oilseed development.

  5. More than Meets the Eye: Functionally Salient Changes in Internal Bone Architecture Accompany Divergence in Cichlid Feeding Mode

    R. Craig Albertson

    2012-01-01

    Full Text Available African cichlids have undergone extensive and repeated adaptive radiations in foraging habitat. While the external morphology of the cichlid craniofacial skeleton has been studied extensively, biomechanically relevant changes to internal bone architecture have been largely overlooked. Here we explore two fundamental questions: (1 Do changes in the internal architecture of bone accompany shifts in foraging mode? (2 What is the genetic basis for this trait? We focus on the maxilla, which is an integral part of the feeding apparatus and an element that should be subjected to significant bending forces during biting. Analyses of μCT scans revealed clear differences between the maxilla of two species that employ alternative foraging strategies (i.e., biting versus suction feeding. Hybrids between the two species exhibit maxillary geometries that closely resemble those of the suction feeding species, consistent with a dominant mode of inheritance. This was supported by the results of a genetic mapping experiment, where suction feeding alleles were dominant to biting alleles at two loci that affect bone architecture. Overall, these data suggest that the internal structure of the cichlid maxilla has a tractable genetic basis and that discrete shifts in this trait have accompanied the evolution of alternate feeding modes.

  6. Deformation effects in the alpha accompanied cold ternary fission of even-even $^{244-260}$Cf isotopes

    Santhosh, K P

    2016-01-01

    Within the Unified ternary fission model (UTFM), the alpha accompanied ternary fission of even-even $^{244-260}$Cf isotopes has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential. For the alpha accompanied ternary fission of 244^Cf isotope, the highest yield is obtained for the fragment combination 108^Ru+4^He+132^Te, which contain near doubly magic nuclei 132^Te (N=80, Z=52). In the case of 246^Cf and 248^Cf isotopes, the highest yield is obtained for the fragment combinations with near doubly magic nuclei 134^Te (N=82, Z=52) as the heavier fragment. The highest yield obtained for 250^Cf, 252^Cf, 254^Cf, 256^Cf, 258^Cf and 260^Cf isotopes is for the fragment combination with doubly magic nuclei 132^Sn (N=82, Z=50) as the heavier fragment. We have included the effect of deformation and orientation of fragments and this has revealed that in addition to closed shell effect, ground state deformation also plays an important role in the calculation of relative yield of fav...

  7. The role of T-regulatory cells in the pathogenesis of immunological disturbances accompanying obesity and atherosclerosis

    Włodzimierz Łuczyński

    2010-03-01

    Full Text Available Obesity and atherosclerosis, and their consequences, including cardiovascular disease, are plagues of the 21st century. Chronic inflammation, whose mechanism is not well understood, underlies the pathophysiological bases of both processes. T lymphocytes, macrophages, and the proinflammatory cytokines produced by these cells play key roles in the immunological disturbances accompanying obesity and atherosclerosis. It was recently shown that T-regulatory cells can play a role in these processes. T-regulatory cells are a small subpopulation of T cells which are responsible for inhibition of the immune response. In this review, experiments conducted in mice and human models on the role of diminished number and/or function of T-regulatory lymphocytes in the pathogenesis of immune disturbances accompanying obesity and atherosclerosis are discussed. The results of studies using T-regulatory cells to stabilize and decrease atherosclerotic lesions in blood vessel walls are also summarized. The results of experiments performed so far are encouraging and give some hope for the future use of T-regulatory cells in the therapy of obesity and atherosclerosis.

  8. Airway smooth muscle cell proliferation is increased in asthma

    Johnson, P R; Roth, Michael; Tamm, M; Hughes, J Margaret; Ge, Q; King, G; Burgess, J K; Black, J L

    2001-01-01

    UNLABELLED: Increased airway smooth muscle (ASM) within the bronchial wall of asthmatic patients has been well documented and is likely to be the result of increased muscle proliferation. We have for the first time been able to culture ASM cells from asthmatic patients and to compare their prolifera

  9. The cardiovascular effects of peroxisome proliferator-activated receptor agonists.

    Friedland, Sayuri N; Leong, Aaron; Filion, Kristian B; Genest, Jacques; Lega, Iliana C; Mottillo, Salvatore; Poirier, Paul; Reoch, Jennifer; Eisenberg, Mark J

    2012-02-01

    Although peroxisome proliferator-activated receptor agonists are prescribed to improve cardiovascular risk factors, their cardiovascular safety is controversial. We therefore reviewed the literature to identify landmark randomized controlled trials evaluating the effect of peroxisome proliferator-activated receptor gamma agonists (pioglitazone and rosiglitazone), alpha agonists (fenofibrate and gemfibrozil), and pan agonists (bezafibrate, muraglitazar, ragaglitazar, tesaglitazar, and aleglitazar) on cardiovascular outcomes. Pioglitazone may modestly reduce cardiovascular events but also may increase the risk of bladder cancer. Rosiglitazone increases the risk of myocardial infarction and has been withdrawn in European and restricted in the United States. Fibrates improve cardiovascular outcomes only in select subgroups: fenofibrate in diabetic patients with metabolic syndrome, gemfibrozil in patients with dyslipidemia, and bezafibrate in patients with diabetes or metabolic syndrome. The cardiovascular safety of the new pan agonist aleglitazar, currently in phase II trials, remains to be determined. The heterogenous effects of peroxisome proliferator-activated receptor agonists to date highlight the importance of postmarketing surveillance. The critical question of why peroxisome proliferator-activated receptor agonists seem to improve cardiovascular risk factors without significantly improving cardiovascular outcomes requires further investigation.

  10. Histamine inhibits adrenocortical cell proliferation but does not affect steroidogenesis.

    Pagotto, Romina Maria; Pereyra, Elba Nora; Monzón, Casandra; Mondillo, Carolina; Pignataro, Omar Pedro

    2014-04-01

    Histamine (HA) is a neurotransmitter synthesized in most mammalian tissues exclusively by histidine decarboxylase enzyme. Among the plethora of actions mediated by HA, the modulatory effects on steroidogenesis and proliferation in Leydig cells (LCs) have been described recently. To determine whether the effects on LCs reported could be extrapolated to all steroidogenic systems, in this study, we assessed the effect of this amine on adrenal proliferation and steroidogenesis, using two adrenocortical cell lines as experimental models, murine Y1 cells and human NCI-H295R cells. Even when steroidogenesis was not modified by HA in adrenocortical cells, the biogenic amine inhibited the proliferation of H295R cells. This action was mediated by the activation of HRH1 subtype and an increase in the production of inositol phosphates as second messengers, causing cell-cycle arrest in the G2/M phase. These results indicate a new role for HA in the proliferation of human adrenocortical cells that could contribute to a better understanding of tumor pathology as well as to the development of new therapeutic agents.

  11. Mechanism of Suppression on Proliferation of QGY Cell by Oxaliplatin

    HE Song; ZUO Guo-qing; ZHANG Yan; TANG Wei-xue; LIU Chang-an

    2007-01-01

    Objective: To observe the effects of oxaliplatin(L-OHP) on proliferation of human hepatoma cell line QGY in vitro and to investigate the mechanism. Methods: The inhibition of proliferation in QGY cell was assayed by MTT-test. Morphologic changes were observed under light microscope and electronic microscope. Distribution of cell cycle and apoptosis were analyzed using flow cytometry. The expressions of cell cycle proteins and apoptosis-associated proteins were detected with immuno-histochemical technique. Results: Oxaliplatin could inhibit the proliferation of QGY cells and the inhibition depended on the exposure time and dose. The cells showed morphologic changes of the early stage of apoptosis under the light microscope: the shrunk round cells, condensed cytoplasma and pycnosis of nucleus. Apoptotic cells and apoptotic body could be found under the transmission electronic microscope. The analysis of cell cycle indicated that oxaliplatin blocked cells at S and G2/M phases and the cells of G0/Gl phase reduced. When treated with oxaliplatin for 72h, the expressions of cyclin A and Bax were up-regulated, mutant type P53, Bcl-2 and Myc were down-regulated, and Fas was not changed. Conclusion: Oxaliplatin could inhibit the proliferation of the hepatoma cell lines. Cells were blocked at S and G2/M phases. The apoptosis was related to the up-regulation of Bax and down-regulation of mutant type P53, Bcl-2 and Myc. Oxaliplatin could not induce apoptosis through the Fas pathway.

  12. Serotonin regulates osteoblast proliferation and function in vitro

    Dai, S.Q.; Yu, L.P. [Department of Orthopedic Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu (China); Shi, X. [Department of Obstetrics and Gynecology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu (China); Wu, H. [Emergency Department, The First Affiliated Hospital, Soochow University, Suzhou (China); Shao, P.; Yin, G.Y.; Wei, Y.Z. [Department of Orthopedic Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu (China)

    2014-08-01

    The monoamine serotonin (5-hydroxytryptamine, 5-HT), a well-known neurotransmitter, also has important functions outside the central nervous system. The objective of this study was to investigate the role of 5-HT in the proliferation, differentiation, and function of osteoblasts in vitro. We treated rat primary calvarial osteoblasts with various concentrations of 5-HT (1 nM to 10 µM) and assessed the rate of osteoblast proliferation, expression levels of osteoblast-specific proteins and genes, and the ability to form mineralized nodules. Next, we detected which 5-HT receptor subtypes were expressed in rat osteoblasts at different stages of osteoblast differentiation. We found that 5-HT could inhibit osteoblast proliferation, differentiation, and mineralization at low concentrations, but this inhibitory effect was mitigated at relatively high concentrations. Six of the 5-HT receptor subtypes (5-HT{sub 1A}, 5-HT{sub 1B}, 5-HT{sub 1D}, 5-HT{sub 2A}, 5-HT{sub 2B}, and 5-HT{sub 2C}) were found to exist in rat osteoblasts. Of these, 5-HT{sub 2A} and 5-HT{sub 1B} receptors had the highest expression levels, at both early and late stages of differentiation. Our results indicated that 5-HT can regulate osteoblast proliferation and function in vitro.

  13. Climate Change, Nuclear Power and Nuclear Proliferation: Magnitude Matters

    Robert J. Goldston

    2011-04-28

    Integrated energy, environment and economics modeling suggests that worldwide electrical energy use will increase from 2.4 TWe today to ~12 TWe in 2100. It will be challenging to provide 40% of this electrical power from combustion with carbon sequestration, as it will be challenging to provide 30% from renewable energy sources derived from natural energy flows. Thus nuclear power may be needed to provide ~30%, 3600 GWe, by 2100. Calculations of the associated stocks and flows of uranium, plutonium and minor actinides indicate that the proliferation risks at mid-century, using current light-water reactor technology, are daunting. There are institutional arrangements that may be able to provide an acceptable level of risk mitigation, but they will be difficult to implement. If a transition is begun to fast-spectrum reactors at mid-century, without a dramatic change in the proliferation risks of such systems, at the end of the century global nuclear proliferation risks are much greater, and more resistant to mitigation. Fusion energy, if successfully demonstrated to be economically competitive, would provide a source of nuclear power with much lower proliferation risks than fission.

  14. Effect of Leptin on Cytotrophoblast Proliferation and Invasion

    Haiyi LIU; Yuanyuan WU; Fuyuan QIAO; Xun GONG

    2009-01-01

    The effects of leptin on cytotrophoblast proliferation and invasion activity were investigated.Immunohistochemistry was used to determine the placental expression of leptin in first-trimester preg-nancy. By using RT-PCR and quantitative real-time PCR, the expression of leptin in cytotrophoblast and the effect of leptin on cytotrophoblast secretion were detected. The potential of cell proliferation, inva-siveness and migration was assessed by MTT, Transwell invasion assay and migration assay respec-tively when the cytotrophoblast was cultured with different concentrations of leptin. The results showed that: (1) Leptin was distributed diffusely around cell membrane, in cytoplasma, and on nuclear mem-brane of cytotrophoblast; (2) Leptin mRNA was expressed in cytotrophoblast. Ten ng/mL leptin could promote the secretion of cytotrophoblast significantly (P<0.01); (3) After culture with different concen-trations of leptin for 24 h or longer, the proliferation of cytotrophoblast was inhibited, while in 24 h leptin could promote cytotrophoblast invasion and migration. Leptin at a concentration of 500 ng/mL could promote cytotrophoblast invasiveness and migration significantly as compared with controls (P<0.05). It was suggested that leptin could inhibit cytotrophoblast proliferation, and promote cytotro-phoblast invasion and migration activity.

  15. Ginsenoside Rg1 promotes endothelial progenitor cell migration and proliferation

    Ai-wu SHI; Xiao-bin WANG; Feng-xiang LU; Min-min ZHU; Xiang-qing KONG; Ke-jiang CAO

    2009-01-01

    Aim: To investigate the effect of ginsenoside Rgl on the migration, adhesion, proliferation, and VEGF expression of endothe-lial progenitor cells (EPCs).Methods: EPCs were isolated from human peripheral blood and incubated with different concentrations of ginsenoside Rgl (0.1, 0.5, 1.0, and 5.0 μmol/L) and vehicle controls. EPC migration was detected with a modified Boyden chamber assay. EPC adhesion was determined by counting adherent cells on fibronectin-coated culture dishes. EPC proliferation was analyzed with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. In vitro vasculogenesis was assayed using an in vitro vasculogenesis detection kit. A VEGF-ELISA kit was used to measure the amount of VEGF protein in the cell culture medium.Results: Ginsenoside Rgl promoted EPC adhesionp proliferation, migration and in vitro vasculogenesis in a dose- and time-dependent manner. Cell cycle analysis showed that 5.0 μmol/L of ginsenoside Rgl significantly increased the EPC prolifera-tive phase (S phase) and decreased the resting phase (G0/G1 phase). Ginsenoside Rgl increased vascular endothelial growth factor production.Conclusion: The results indicate that ginsenoside Rgl promotes proliferation, migration, adhesion and in vitro vasculogen-esis.

  16. Peroxisome Proliferator-Activated Receptor Alpha Target Genes

    Rakhshandehroo, M.; Knoch, B.; Müller, M.R.; Kersten, A.H.

    2010-01-01

    The peroxisome proliferator-activated receptor alpha (PPAR alpha) is a ligand-activated transcription factor involved in the regulation of a variety of processes, ranging from inflammation and immunity to nutrient metabolism and energy homeostasis. PPAR alpha serves as a molecular target for hypolip

  17. Cholesterol induces proliferation of chicken primordial germ cells.

    Chen, Dongyang; Chen, Meijuan; Lu, Zhenping; Yang, Mengmeng; Xie, Long; Zhang, Wenxin; Xu, Huiyan; Lu, Kehuan; Lu, Yangqing

    2016-08-01

    Primordial germ cells (PGCs) are the precursors of sperm and eggs and may serve as suitable cells for use in research in developmental biology and transgenic animals. However, the long-term propagation of PGCs in vitro has so far been plagued by the loss of their germ cell characteristics. This is largely because of the scarcity of knowledge concerning cell division and proliferation in these cells and the poor optimization of the culture medium. The sonic hedgehog (SHH) signaling pathway is involved in proliferation of many types of cells, but little is known about its role in chicken PGCs. The results of the current study indicate that the proliferation of chicken PGCs increases significantly when cholesterol, a molecule that facilitates the trafficking of HH ligands, is supplemented in the culture medium. This effect was attenuated when an SHH antagonist, cyclopamine was added, suggesting the involvement of SHH signaling in this process. The characterization of PGCs treated with cholesterol has shown that these cells express germ-cell-related markers and retain their capability to colonize the embryonic gonad after re-introduction to vasculature of stage-15 HH embryos, indicating that proliferation of PGCs induced by cholesterol does not alter the germ cell characteristics of these cells.

  18. Novel cAMP targets in cell proliferation

    Kuiperij, Hinke Bertha

    2004-01-01

    cAMP is a second messenger that plays a role in a wide variety of biological processes, one of which is the regulation of cell proliferation. Adenylate cyclases generate cAMP in the cell upon activation, followed by binding to and activation of its direct targets, PKA and Epac. PKA is a protein kina

  19. Simvastatin suppresses breast cancer cell proliferation induced by senescent cells

    Liu, Su; Uppal, Harpreet; Demaria, Marco; Desprez, Pierre-Yves; Campisi, Judith; Kapahi, Pankaj

    2015-01-01

    Cellular senescence suppresses cancer by preventing the proliferation of damaged cells, but senescent cells can also promote cancer though the pro-inflammatory senescence-associated secretory phenotype (SASP). Simvastatin, an HMG-coA reductase inhibitor, is known to attenuate inflammation and preven

  20. Climate Change, Nuclear Power and Nuclear Proliferation: Magnitude Matters

    Robert J. Goldston

    2010-03-03

    Integrated energy, environment and economics modeling suggests electrical energy use will increase from 2.4 TWe today to 12 TWe in 2100. It will be challenging to provide 40% of this electrical power from combustion with carbon sequestration, as it will be challenging to provide 30% from renewable energy sources. Thus nuclear power may be needed to provide ~30% by 2100. Calculations of the associated stocks and flows of uranium, plutonium and minor actinides indicate that the proliferation risks at mid-century, using current light-water reactor technology, are daunting. There are institutional arrangements that may be able to provide an acceptable level of risk mitigation, but they will be difficult to implement. If a transition is begun to fast-spectrum reactors at mid-century, without a dramatic change in the proliferation risks of such systems, at the end of the century proliferation risks are much greater, and more resistant to mitigation. The risks of nuclear power should be compared with the risks of the estimated 0.64oC long-term global surface-average temperature rise predicted if nuclear power were replaced with coal-fired power plants without carbon sequestration. Fusion energy, if developed, would provide a source of nuclear power with much lower proliferation risks than fission.

  1. Addressing Information Proliferation: Applications of Information Extraction and Text Mining

    Li, Jingjing

    2013-01-01

    The advent of the Internet and the ever-increasing capacity of storage media have made it easy to store, deliver, and share enormous volumes of data, leading to a proliferation of information on the Web, in online libraries, on news wires, and almost everywhere in our daily lives. Since our ability to process and absorb this information remains…

  2. Factors influencing ER subtype-mediated cell proliferation and apoptosis

    Evers, N.M.

    2014-01-01

      The aim of the current thesis is to elucidate the role of estrogen receptor (ER)αand ERβin cell proliferation and apoptosis induced by estrogenic compounds. Special attention is paid to the importance of the receptor preference of the estrogenic compounds, the cellular ERα/E

  3. Inflammation and proliferation act together to mediate intestinal cell fusion.

    Paige S Davies

    Full Text Available Cell fusion between circulating bone marrow-derived cells (BMDCs and non-hematopoietic cells is well documented in various tissues and has recently been suggested to occur in response to injury. Here we illustrate that inflammation within the intestine enhanced the level of BMDC fusion with intestinal progenitors. To identify important microenvironmental factors mediating intestinal epithelial cell fusion, we performed bone marrow transplantation into mouse models of inflammation and stimulated epithelial proliferation. Interestingly, in a non-injury model or in instances where inflammation was suppressed, an appreciable baseline level of fusion persisted. This suggests that additional mediators of cell fusion exist. A rigorous temporal analysis of early post-transplantation cellular dynamics revealed that GFP-expressing donor cells first trafficked to the intestine coincident with a striking increase in epithelial proliferation, advocating for a required fusogenic state of the host partner. Directly supporting this hypothesis, induction of augmented epithelial proliferation resulted in a significant increase in intestinal cell fusion. Here we report that intestinal inflammation and epithelial proliferation act together to promote cell fusion. While the physiologic impact of cell fusion is not yet known, the increased incidence in an inflammatory and proliferative microenvironment suggests a potential role for cell fusion in mediating the progression of intestinal inflammatory diseases and cancer.

  4. Cell proliferation and neurogenesis in adult mouse brain.

    Olivia L Bordiuk

    Full Text Available Neurogenesis, the formation of new neurons, can be observed in the adult brain of many mammalian species, including humans. Despite significant progress in our understanding of adult neurogenesis, we are still missing data about the extent and location of production of neural precursors in the adult mammalian brain. We used 5-ethynyl-2'-deoxyuridine (EdU to map the location of proliferating cells throughout the entire adult mouse brain and found that neurogenesis occurs at two locations in the mouse brain. The larger one we define as the main proliferative zone (MPZ, and the smaller one corresponds to the subgranular zone of the hippocampus. The MPZ can be divided into three parts. The caudate migratory stream (CMS occupies the middle part of the MPZ. The cable of proliferating cells emanating from the most anterior part of the CMS toward the olfactory bulbs forms the rostral migratory stream. The thin layer of proliferating cells extending posteriorly from the CMS forms the midlayer. We have not found any additional aggregations of proliferating cells in the adult mouse brain that could suggest the existence of other major neurogenic zones in the adult mouse brain.

  5. ENHANCING ADVANCED CANDU PROLIFERATION RESISTANCE FUEL WITH MINOR ACTINIDES

    Gray S. Chang

    2010-05-01

    The advanced nuclear system will significantly advance the science and technology of nuclear energy systems and to enhance the spent fuel proliferation resistance. Minor actinides (MA) are viewed more as a resource to be recycled, and transmuted to less hazardous and possibly more useful forms, rather than simply disposed of as a waste stream in an expensive repository facility. MAs can play a much larger part in the design of advanced systems and fuel cycles, not only as additional sources of useful energy, but also as direct contributors to the reactivity control of the systems into which they are incorporated. In this work, an Advanced CANDU Reactor (ACR) fuel unit lattice cell model with 43 UO2 fuel rods will be used to investigate the effectiveness of a Minor Actinide Reduction Approach (MARA) for enhancing proliferation resistance and improving the fuel cycle performance. The main MARA objective is to increase the 238Pu / Pu isotope ratio by using the transuranic nuclides (237Np and 241Am) in the high burnup fuel and thereby increase the proliferation resistance even for a very low fuel burnup. As a result, MARA is a very effective approach to enhance the proliferation resistance for the on power refueling ACR system nuclear fuel. The MA transmutation characteristics at different MA loadings were compared and their impact on neutronics criticality assessed. The concept of MARA, significantly increases the 238Pu/Pu ratio for proliferation resistance, as well as serves as a burnable absorber to hold-down the initial excess reactivity. It is believed that MARA can play an important role in atoms for peace and the intermediate term of nuclear energy reconnaissance.

  6. The international nuclear non-proliferation system: Challenges and choices

    Simpson, J.; McGrew, A.G.

    1984-01-01

    When a topic has been under discussion for almost 40 years there is a danger that the literature will become excessively esoteric and that, as Philip Grummett suggests, '...a new scholasticism will arise' (p.79). Originating in a November l982 seminar co-sponsored by the British International Studies Association and the Foreign and Commonwealth Office, this volume is a refreshing, well conceived, and well written antidote to that trend. It is also well timed for the 1985 NPT Review Conference. The eight chapters of the volume are divided into three sections. Following an introduction by Anthony McGrew that touches on all the major themes of the volume, the first section deals with the existing non-proliferation system. In three chapters the historical, institutional and policy-making elements of the present system are outlined. There is a vignette on the Nuclear Suppliers Group in Wilmshurst's chapter one (pp. 28-33). Fischer's informative chapter on the IAEA is followed by Gummett's examination of policy options, including, for example, the linking of conventional weapons transfer to non-proliferation policies. The second section, also of three chapters, examines current issues: the state of the international nuclear industry, and the non-proliferation policies of the United States and Britain. Walker's chapter focuses chiefly on change in the industry-from monopoly to pluralism in suppliers, the effect of the economic recession, and the combined effect of these two factors on international politics. Devine's American non-proliferation chapter is a statement of the State Department view, whilst Keohane's chapter on Britain attempts to put the Trident procurement into a proliferation context. The British chapter is present because of ethnocentric considerations.

  7. Opioid-induced proliferation of vascular endothelial cells

    Sandra Leo

    2009-05-01

    Full Text Available Sandra Leo1,2, Rony Nuydens1, Theo F Meert11Pain and Neurology, CNS Department, Johnson and Johnson Pharmaceutical Research and Development, a division of Janssen Pharmaceutica N.V, Beerse, Belgium; 2Laboratory of Biological Psychology, University of Leuven, Leuven, BelgiumAbstract: Angiogenesis is an important issue in cancer research and opioids are often used to treat pain in cancer patients. Therefore it is important to know if the use of opioids is associated with an aberrant stimulation of tumor growth triggered by the stimulation of angiogenesis in cancer patients. Some studies in the literature have suggested the presence of the μ3 opioid receptor, known as the receptor for many opioids, on endothelial cells, which are key players in the process of angiogenesis. In this study we used endothelial cells known to express the μ3 opioid receptor (MOR3, to evaluate the effects of morphine on angiogenesis. We first investigated the effect of morphine on the proliferation of endothelial cells. We showed that morphine is able to stimulate vascular endothelial cell proliferation in vitro. This effect of morphine is mediated by the mitogen-activated protein kinase (MAPK pathway as pre-treatment with PD98059 inhibited this excessive proliferation. Because previous studies indicated nitric oxide (NO as a downstream messenger we investigated the role of NO in the aberrant proliferation of endothelial cells. Our data could not confirm these findings using intracellular NO measurements and quantitative fluorescence microscopy. The potential use and pitfalls of opioids in cancer patients is discussed in light of these negative findings. Keywords: endothelial cells, morphine, cell proliferation, MAPK, nitric oxide, μ3 opioid receptor, angiogenesis

  8. Fisetin regulates astrocyte migration and proliferation in vitro.

    Wang, Nan; Yao, Fang; Li, Ke; Zhang, Lanlan; Yin, Guo; Du, Mingjun; Wu, Bingyi

    2017-02-15

    Fisetin (3,3',4',7-tetrahydroxyflavone) is a plant flavonol found in fruits and vegetables that has been reported to inhibit migration and proliferation in several types of cancer. Reactive astrogliosis involves astrocyte migration and proliferation, and contributes to the formation of glial scars in central nervous system (CNS) disorders. However, the effect of fisetin on the migration and proliferation of astrocytes remains unclear. In this study, we found that fisetin inhibited astrocyte migration in a scratch-wound assay and diminished the phosphorylation of focal adhesion kinase (FAK; Tyr576/577 and paxillin (Tyr118). It also suppressed cell proliferation, as indicated by the decreased number of 5-ethynyl-2'-deoxyuridine (EdU)-positive cells, induced cell cycle arrest in the G1 phase, reduced the percentage of cells in the G2 and S phase (as measured by flow cytometry), and decreased cyclin D1 expression, but had no effect on apoptosis. Fisetin also decreased the phosphorylation levels of Akt and extracellular signal-regulated kinase (Erk)1/2, but had no effect on the phosphorylation of p38 mitogen-activated protein kinase (MAPK). These results indicate that fisetin inhibits aggressive cell phenotypes by suppressing cell migration and proliferation via the Akt/Erk signaling pathway. Fisetin may thus have potential for use as a therapeutic strategy targeting reactive astrocytes, which may lead to the inhibition of glial scar formation in vitro.

  9. Asbestos-Induced Peribronchiolar Cell Proliferation and Cytokine Production Are Attenuated in Lungs of Protein Kinase C-δ Knockout Mice

    Shukla, Arti; Lounsbury, Karen M.; Barrett, Trisha F.; Gell, Joanna; Rincon, Mercedes; Butnor, Kelly J.; Taatjes, Douglas J.; Davis, Gerald S.; Vacek, Pamela; Nakayama, Keiichi I.; Nakayama, Keiko; Steele, Chad; Mossman, Brooke T.

    2007-01-01

    The signaling pathways leading to the development of asbestos-associated diseases are poorly understood. Here we used normal and protein kinase C (PKC)-δ knockout (PKCδ−/−) mice to demonstrate multiple roles of PKC-δ in the development of cell proliferation and inflammation after inhalation of chrysotile asbestos. At 3 days, asbestos-induced peribronchiolar cell proliferation in wild-type mice was attenuated in PKCδ−/− mice. Cytokine profiles in bronchoalveolar lavage fluids showed increases in interleukin (IL)-1β, IL-4, IL-6, and IL-13 that were decreased in PKCδ−/− mice. At 9 days, microarray and quantitative reverse transcriptase-polymerase chain reaction analysis of lung tissues revealed increased mRNA levels of the profibrotic cytokine, IL-4, in asbestos-exposed wild-type mice but not PKCδ−/− mice. PKCδ−/− mice also exhibited decreased lung infiltration of polymorphonuclear cells, natural killer cells, and macrophages in bronchoalveolar lavage fluid and lung, as well as increased numbers of B lymphocytes and plasma cells. These changes were accompanied by elevated mRNA levels of immunoglobulin chains. These data show that modulation of PKC-δ has multiple effects on peribronchiolar cell proliferation, proinflammatory and profibrotic cytokine expression, and immune cell profiles in lung. These results also implicate targeted interruption of PKC-δ as a potential therapeutic option in asbestos-induced lung diseases. PMID:17200189

  10. Effects of 15-deoxy-Δ12,14-prostaglandin J2 on cell proliferation and apoptosis in ECV304 endothelial cells

    Yu-gangDONG; Dan-danCHEN; Jian-guiHE; Yong-yuanGUAN

    2004-01-01

    AIM: To investigate the effects of 15-deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) on cell proliferation and apoptosis in ECV304 endothelial cells and related molecular mechanism. METHODS: MTT, Hoechst33258, TUNEL, Flow cytometry, DNA ladder, RT-PCR, Western blot, and electrophoretic mobility shift assay (EMSA) analysis were employed. RESULTS: The 15d-PGJ2 induced apoptosis in ECV304 endothelial cells in a dose-dependent manner(the percentage of apoptosis was enhanced from 10.0 %+1.3 % to 32.8 %+1.6 %), which was accompanied by inhibition of NF-κB and AP-1 DNA binding activity, down-regulation of c-myc, upregulation of Gadd45 and p53,and activation of p38 kinase. However, the expression of p21 was found no significant change. CONCLUSION:peroxisome proliferator-activated receptor gamma ligand, 15d-PGJ2, can inhibit proliferation and induce apoptosisin ECV304 endothelial cells through different mechanisms.

  11. Fat1 interacts with Fat4 to regulate neural tube closure, neural progenitor proliferation and apical constriction during mouse brain development.

    Badouel, Caroline; Zander, Mark A; Liscio, Nicole; Bagherie-Lachidan, Mazdak; Sopko, Richelle; Coyaud, Etienne; Raught, Brian; Miller, Freda D; McNeill, Helen

    2015-08-15

    Mammalian brain development requires coordination between neural precursor proliferation, differentiation and cellular organization to create the intricate neuronal networks of the adult brain. Here, we examined the role of the atypical cadherins Fat1 and Fat4 in this process. We show that mutation of Fat1 in mouse embryos causes defects in cranial neural tube closure, accompanied by an increase in the proliferation of cortical precursors and altered apical junctions, with perturbations in apical constriction and actin accumulation. Similarly, knockdown of Fat1 in cortical precursors by in utero electroporation leads to overproliferation of radial glial precursors. Fat1 interacts genetically with the related cadherin Fat4 to regulate these processes. Proteomic analysis reveals that Fat1 and Fat4 bind different sets of actin-regulating and junctional proteins. In vitro data suggest that Fat1 and Fat4 form cis-heterodimers, providing a mechanism for bringing together their diverse interactors. We propose a model in which Fat1 and Fat4 binding coordinates distinct pathways at apical junctions to regulate neural progenitor proliferation, neural tube closure and apical constriction.

  12. Research on Accompanying Cars Recognition in Practical Application%伴随车检测技术应用研究

    赵新勇; 安实

    2012-01-01

    In massive dynamic traffic flows, it is very common to see the cars moving in a queue. In some scenarios, these cars are regarded as accompanying cars and suspected of gang crime support each other when that condition occurs in a high rate. It is very important to identify the accompanying vehicles as early as possible and to reduce potential risks of road traffic system and to reduce road-related public security cases and criminal cases. Based on the automatic license plate recognition database and data mining technology, this paper proposes a set of algorithms in identifying accompanying cars and a field test is conducted. The results demonstrate the performance of the algorithm with effectiveness, low detection error, wide application and capability for further investigation.%海量动态交通流中,经常出现结伴而行的车辆.特定区域内,当结伴车辆出现的概率较大时,即可将其视为伴随车辆,这类车辆具有相互掩护和团伙作案的重大嫌疑.及早检测和识别伴随车辆,能有效降低道路交通安全系统中的危险因素,对预防和减少与道路有关的治安和刑事案件,也具有十分重要的意义.本文在车牌自动识别数据库基础上,应用数据挖掘技术,提出伴随车辆检测和识别算法,并进行了实地测试.实验结果表明:应用数据挖掘技术对伴随车辆进行分析检测,具有检测效率高、检测误差小、应用范围广的特点,完全可以满足刑侦等部门对伴随嫌疑车辆进一步排查的需要.

  13. Changes in Neuronal Oscillations Accompany the Loss of Hippocampal LTP that Occurs in an Animal Model of Psychosis

    Kalweit, Alexander N.; Amanpour-Gharaei, Bezhad; Colitti-Klausnitzer, Jens; Manahan-Vaughan, Denise

    2017-01-01

    The first-episode of psychosis is followed by a transient time-window of ca. 60 days during which therapeutic interventions have a higher likelihood of being effective than interventions that are started with a greater latency. This suggests that, in the immediate time-period after first-episode psychosis, functional changes occur in the brain that render it increasingly resistant to intervention. The precise mechanistic nature of these changes is unclear, but at the cognitive level, sensory and hippocampus-based dysfunctions become increasingly manifest. In an animal model of first-episode psychosis that comprises acute treatment of rats with the irreversible N-methyl-D-aspartate receptor (NMDAR)-antagonist, MK801, acute but also chronic deficits in long-term potentiation (LTP) and spatial memory occur. Neuronal oscillations, especially in the form of information transfer through θ and γ frequency oscillations are an intrinsic component of normal information processing in the hippocampus. Changes in θ-γ coupling and power are known to accompany deficits in hippocampal plasticity. Here, we examined whether changes in δ, θ, α, β and γ oscillations, or θ-γ coupling accompany the chronic loss of LTP that is observed in the MK801-animal model of psychosis. One and 4 weeks after acute systemic treatment of adult rats with MK801, a potent loss of hippocampal in vivo LTP was evident compared to vehicle-treated controls. Overall, the typical pattern of θ-γ oscillations that are characteristic for the successful induction of LTP was altered. In particular, θ-power was lower and an uncoupling of θ-γ oscillations was evident in MK801-treated rats. The alterations in network oscillations that accompany LTP deficits in this animal model may comprise a mechanism through which disturbances in sensory information processing and hippocampal function occur in psychosis. These data suggest that the hippocampus is likely to comprise a very early locus of functional

  14. Parasympathetic reinnervation accompanied by improved post-exercise heart rate recovery and quality of life in heart transplant recipients.

    Imamura, Teruhiko; Kinugawa, Koichiro; Okada, Ikuko; Kato, Naoko; Fujino, Takeo; Inaba, Toshiro; Maki, Hisataka; Hatano, Masaru; Kinoshita, Osamu; Nawata, Kan; Kyo, Shunei; Ono, Minoru

    2015-01-01

    Although sympathetic reinnervation is accompanied by the improvement of exercise tolerability during the first years after heart transplantation (HTx), little is known about parasympathetic reinnervation and its clinical impact. We enrolled 21 recipients (40 ± 16 years, 71% male) who had received successive cardiopulmonary exercise testing at 6 months, and 1 and 2 years after HTx. Exercise parameters such as peak oxygen consumption or achieved maximum load remained unchanged, whereas recovery parameters including heart rate (HR) recovery during 2 minutes and the delay of peak HR, which are influenced by parasympathetic activity, improved significantly during post-HTx 2 years (P recovery parameters (P recovery parameters enjoyed a better HF-specific quality of life (P recovery ability of HR and quality of life during post-HTx 2 years.

  15. Congenital peripheral developing odontoma accompanied by congenital teratomatous fibroma in a 9-month-old boy: a case report.

    Mikami, Toshinari; Yagi, Masaatsu; Mizuki, Harumi; Takeda, Yasunori

    2013-03-01

    Peripheral odontoma is rare, and only two cases of congenital peripheral odontoma have been reported. Congenital oral fibroma is also rare. We describe a unique case of congenital peripheral developing odontoma accompanied by congenital teratomatous fibroma in an infant. Both tumors were difficult to detect on radiography. Two small masses were seen in the median anterior portion of the palatal mucosa of a 9-month-old boy. The masses had been present since birth and were surgically removed at age 28 months, when one of the masses had grown to a diameter of 8 mm. Histopathologic examination showed a fibrous lesion and a tooth germ-like rounded lesion composed of dental papilla, enamel organ, dentin, and cementum. Although congenital odontoma is rare, it should be considered when selecting appropriate treatment, as early radiographic detection is difficult.

  16. Emotional fluctuations in Bob Dylan's lyrics measured by the dictionary of affect accompany events and phases in his life.

    Whissell, Cynthia

    2008-04-01

    Lyrics for Bob Dylan's songs between 1962 and 2001 (close to 100,000 words) were scored with the help of the Dictionary of Affect in Language (Whissell, 2006). Means for Pleasantness, Activation, and Imagery are reported for 22 Blocks characterizing this time span. Significant but weak differences across Blocks were found for all three measures at the level of individual words. Emotional fluctuations in words included in Bob Dylan's lyrics accompanied events and phases in his life, although they were not entirely dictated by these events. Dylan used more highly Imaged and more Active words at times when his work was critically acclaimed. More Passive word choices characterized times of prolonged stress, and more Pleasant choices times of experimentation. Dylan's three popularity peaks were used to divide the singer's career into three stages (rhetor, poet, sage) which differed in terms of pronouns used.

  17. Study of Auger decay process following multielectron excitation accompanying F 1s photoionization of CF{sub 4}

    Machida, M. [Department of Material Science, Himeji Institute of Technology, Kamigori, Hyogo 678-1297 (Japan); RIKEN/SPring-8, Harima Institute, 1-1-1 Kouto, Mikazuki, Sayo, Hyogo 679-5148 (Japan); Tamenori, Y. [JASRI/SPring-8, 1-1-1, Kouto, Mikazuki, Sayo, Hyogo 679-5198 (Japan); Oura, M. [RIKEN/SPring-8, Harima Institute, 1-1-1 Kouto, Mikazuki, Sayo, Hyogo 679-5148 (Japan)]. E-mail: oura@spring8.or.jp; Mukoyama, T. [Kansai Gaidai University, 16-1 Nakamiya-Higashino-cho, Hirakata, Osaka 573-1001 (Japan)

    2005-06-15

    Auger decay process following multielectron excitation accompanying F 1s photoionization of CF{sub 4} molecule has been studied in the excitation energy range between 700 and 750-bar eV using angle-resolved Auger electron spectroscopy. The observed spectra have shown an enhancement in the specific band, at an electron kinetic energy of {approx} 644-bar eV, only in the spectrum recorded at 710-bar eV excitation energy of horizontally polarized light. This feature is discussed in terms of the resonant Auger emission originated from the doubly excited state. The evolution of spectral shape has also exhibited the excitation energy dependence above the threshold of multiple excitation. The origin of the spectral variation is considered due to gradual growth of the satellite Auger lines originated from the multielectron excitation.

  18. An ecologic accompanying research on the fleet test electromobility. Final report; Oekologische Begleitforschung zum Flottenversuch Elektromobilitaet. Endbericht

    Helms, Heinrich; Lambrecht, Udo; Joehrens, Julius; Pehnt, Martin; Liebich, Axel; Weiss, Uta; Kaemper, Claudia

    2013-06-15

    Mobility is a prerequisite for numerous economic and private activities and thus a central component of our life. The demand for mobility in Germany is predominantly covered by the road traffic. The Institute for Energy and Environmental Research (Heidelberg, Federal Republic of Germany) carried out an ecologic accompanying research in the course of a fleet test in order to determine the potentials of environmental improvement of the vehicles tested in a field test. These potentials were perpetuated for future serial vehicles and projected to Germany. The main themes of this contribution are: (a) Production and disposal of plug-in-hybrids; (b) The TwinDrive in the fleet test; (c) Plug-in-hybrid serial vehicles 2020; (d) Perspective of electromobility in Germany 2030; (e) Strategic evaluation of the electomobility.

  19. Hepatocellular proliferation in response to agonists of peroxisome proliferator-activated receptor alpha: a role for kupffer cells?

    Alsarra Ibrahim A

    2006-11-01

    Full Text Available Abstract Background It has been proposed that PPARα agonists stimulate Kupffer cells in rodents which in turn, release mitogenic factors leading to hepatic hyperplasia, and eventually cancer. However, Kupffer cells do not express PPARα receptors, and PPARα agonists stimulate hepatocellular proliferation in both TNFα- and TNFα receptor-null mice, casting doubt on the involvement of Kupffer cells in the mitogenic response to PPARα agonists. This study was therefore designed to investigate whether the PPARα agonist PFOA and the Kupffer cell inhibitor methylpalmitate produce opposing effects on hepatocellular proliferation and Kupffer cell activity in vivo, in a manner that would implicate these cells in the mitogenic effects of PPARα agonists. Methods Male Sprague-Dawley rats were treated intravenously via the tail vein with methylpalmitate 24 hrs prior to perfluorooctanoic acid (PFOA, and were sacrificed 24 hrs later, one hr after an intraperitoneal injection of bromodeoxyuridine (BrdU. Sera were analyzed for TNFα and IL-1β. Liver sections were stained immunohistochemically and quantified for BrdU incorporated into DNA. Results Data show that PFOA remarkably stimulated hepatocellular proliferation in the absence of significant changes in the serum levels of either TNFα or IL-1β. In addition, methylpalmitate did not alter the levels of these mitogens in PFOA-treated animals, despite the fact that it significantly blocked the hepatocellular proliferative effect of PFOA. Correlation between hepatocellular proliferation and serum levels of TNFα or IL-1β was extremely poor. Conclusion It is unlikely that mechanisms involving Kupffer cells play an eminent role in the hepatic hyperplasia, and consequently hepatocarcinogenicity attributed to PPARα agonists. This conclusion is based on the above mentioned published data and the current findings showing animals treated with PFOA alone or in combination with methylpalmitate to have similar

  20. Comparative study of the therapeutic effects of corticosteroid injection accompanied by casting and heel pad in treatment of heel pain

    Mehdi Motififard

    2008-08-01

    Full Text Available

    • BACKGROUND: Heel pain is a common condition in adults that may cause significant discomfort and disability. This study was conducted to evaluate the therapeutic effects of corticosteroid injection accompanied by casting, compared with heel pad utilization in treatment of heel pain.
    • METHODS: In this randomized clinical trial study, among patients referred to orthopedic clinics in Isfahan, Iran, from December 2004 to December 2006, 90 patients with heel pain were enrolled. They were randomly assigned into two groups. Heel pad was the only therapeutic method utilized in group A for six months. Corticosteroid injection accompanied by casting was performed for patients in group B. The evaluated information was compared before and after treatment.
    •  RESULTS: Among patients in group A, after 6 months of heel pad utilization, heel pain was completely improved in 3 patients (6.7%, relatively decreased in 22 patients (48.9% and didn't change in 20 patients (44.4%. However, among patients in group B, heel pain was completely improved in 11 patients (24.5%, decreased in 29 patients (64.4% and didn't change in 5 patients (11.1% after the treatment completed.
    • CONCLUSIONS: It seemed that corticosteroid injection in companion with casting was a more effective therapeutic method in heel pain treatment than heel pad utilization.
    • KEYWORDS: Corticosteroid injection, casting, heel pad, heel pain.