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Sample records for basilic vein transposition

  1. A Modified Technique of Basilic Vein Transposition for Haemodialysis

    International Nuclear Information System (INIS)

    Objective: To modify the technique of basilic vein transposition for vascular accesss for haemodialysis aiming at better maturation rate, longer survival of fistula and lesser complications. Study Design: Case series. Place and Duration of Study: Shaikh Zayed Hospital and Omer Hospital, Lahore, from February 2008 to July 2011. Methodology: Patients referred for basilic vein transposition for haemodialysis vascular access were prospectively enrolled. The surgical technique included small tracking incisions, an extra 3 - 4 cm of vein length harvesting to avoid tension in the vein in its new course, an oval arteriotomy and a smooth curved pathway, away from vein harvesting incision to avoid entrapment of vein in the scar. Maturation rate, fistula survival and other complications were noted. Results: There was no immediate failure in 51 patients. The complications during follow-up period were infection and thrombosis, bleeding and non-development of basilic vein in 2 patients each; and false aneurysm formation in one. Four patients died during follow-up period. The maturation time was 4.9 A +- 1.1 weeks. The early patency rate was 92.2%, same at 6 months and 90.7% at 12 months. Conclusion: Arteriovenous fistula constructed with modified technique of basilic vein transposition is an acceptable and valid option of vascular access for haemodialysis. (author)

  2. Basilic Vein Transposition Used as a Tertiary Vascular Access for Hemodialysis: 15 Years of Experience

    Science.gov (United States)

    Novotný, Róbert; Slavíková, Marcela; Hlubocký, Jaroslav; Mitáš, Petr; Hrubý, Jan; Lindner, Jaroslav

    2016-01-01

    INTRODUCTION The quality of the life in patients requiring long term hemodialysis is directly proportional to the long-term patency of their vascular access. Basilic vein transposition for vascular access (BAVA) represents a suitable option for creating a tertiary native vascular access for hemodialysis on the upper extremities for patients requiring long term hemodialysis. The purpose of the study is to compare BAVAs with arteriovenous grafts (AVG). METHOD Data collection was based on selecting all of the patients with BAVA created in the time period in between January 1996 and August 2011. A questionnaire was created and sent to the selected hemodialysis centers. The resulting set of data was statistically analyzed and evaluated. RESULTS In the time period between 1 January 1996 and August 2011, arteriovenous access for hemodialysis was created in 6754 patients (7203 procedures in total). Out of these patients, 175 BAVAs were created. Our patient database of those undergoing the BAVA procedure consisted of 98 females (56%) and 77 males (44%) with an average age of 64.5 years. The prevalence of diabetes mellitus was 60% (105 patients). Primary patency after 12 months was 68.8%, 24 months 59.7%, 36 months 53.8, 48 months 53.8%, and 60 months 50%. Primary assisted patency after 12 months was 89.9%, 24 months 84.6%, 36 months 77.8%, 48 months 77.9%, 60 months 70.8%. Secondary patency after 12 months was 89.4%, 24 months 86.9%, 36 months 81%, 48 months 78.9%, 60 months 75.7%. Twenty-nine BAVAs (16.5%) were obliterated. CONCLUSION Patients benefit from this type of procedure due to the longer patency of a native arteriovenous access, as well as a lower incidence of infectious complications. PMID:26848275

  3. Central Transposition of the Cephalic Vein in Patients with Brachiocephalic Arteriovenous Fistula and Cephalic Arch Stenosis

    OpenAIRE

    Jang, Jihoon; Jung, Heekyung; Cho, Jayun; Kim, Jihye; KIM, HYUNG-KEE; Huh, Seung

    2014-01-01

    Purpose: Our study aims to evaluate to evaluate clinical outcomes after cephalic vein transposition (CVT) to the axilla in patients with brachiocephalic arteriovenous fistula (BC-AVF) and cephalic arch stenosis (CAS). Materials and Methods: Hospital records of 13 patients (median age, 61 years; males, 54%) who received CVT to the proximal basilic/axillary vein due to either dysfunction (n=2) or thrombosis (n=11) between January 2010 and February 2014 were retrospectively reviewed. Results: Op...

  4. Strategies for the creation and maintenance of reconstructed arteriovenous fistulas using the forearm basilic vein.

    Science.gov (United States)

    Kumano, Shintaro; Itatani, Keiichi; Shiota, Jun; Gojo, Satoshi; Izumi, Naoki; Kasahara, Hitoshi; Homma, Yukio; Tagawa, Hitoshi

    2013-10-01

    Reconstruction of an arteriovenous fistula (AVF) after an initial failure to provide long-term patency has been desired in the era when hemodialysis patients' prognosis is improving. The forearm basilic vein AVF should be considered, before an artificial graft shunt or an AVF in the cubital region. The present study was designed to establish a strategy for the creation and maintenance of AVFs using the forearm basilic vein. This study reviewed 76 cases of reconstructed AVF including 18 cases using the basilic vein (23.7% of total cases). The following four points were considered: arm positioning of the cubital flexion position combined with the forearm supinated position; several small skin incisions with a subcutaneous tunnel; sufficient venous dilatation using Fogarty balloon catheter; and early percutaneous angioplasty introduction for immature AVF. The primary and secondary patency rates were examined. A radiobasilic AVF was created through a subcutaneous tunnel in two cases. The primary and secondary patency rates of AVF with the basilic vein were 54.7% and 76.7% respectively, whereas those of AVF with the cephalic vein were 49.3% and 71.3%. The basilic was not inferior to the cephalic vein (P-value of the log-rank test for primary and secondary patency rates were 0.927 and 0.811, respectively). Early stage percutaneous angioplasty was effective in five cases with immature AVF. The forearm basilic vein was useful in AVF reconstruction and equivalent to radiocephalic reconstruction. Careful observation and percutaneous angioplasty during the early period after the surgery were essential for long-term patency. PMID:24107279

  5. Laparoscopic Left Renal Vein Transposition for Nutcracker Syndrome.

    Science.gov (United States)

    Gunka, Igor; Navratil, Pavel; Lesko, Michal; Jiska, Stanislav; Raupach, Jan

    2016-02-01

    The left renal vein (LRV) reimplantation into the distal inferior vena cava is considered to be the gold standard of care for symptomatic nutcracker syndrome (NCS). The vast majority of these surgical procedures are performed by open surgery. Experiences with minimally invasive laparoscopic surgery in this field are very limited. We present a case of a 17-year-old boy with NCS in whom the transposition of the LRV was done laparoscopically. The patient suffered from left flank pain, painful left-sided varicocele, microscopic hematuria, proteinuria, and oligoasthenospermia. There were no intraoperative complications, and the postoperative course was uneventful. At 12-month follow-up, hematuria, left flank pain, and left testicular pain resolved. Duplex ultrasonography revealed patent LRV. Laparoscopic LRV transposition appears to be safe, feasible, and has favorable postoperative course. PMID:26627326

  6. Creation of an Arterio-Venous Fistula Between the Brachial Artery and Basilic Vein with a Saphenous Vein Graft Interposition

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    Hakan KARA

    2015-09-01

    Full Text Available Arteriovenous fistulas for hemodialysis are usually open in the upper extremity. For patients with thrombosed arteriovenous fistulas in this area, alternative fistula access routes are needed. AVF creation with a saphenous vein graft is an alternative hemodialysis access method in the patient who has lost the chance of fistula creation with his native vessels.The aim of this case report is to discuss AV fistula management with a saphenous vein graft between the brachial artery and basilic vein in a hemodialysisdependent patient. In this patient previous fistulas were thrombosed and the native vessels in the upper extremity vessels were not suitable for a new AV fistula creation.

  7. Axillary Artery Injury Caused by Fracture of Humerus Neck and Its Repair Using Basilic Vein Graft

    Science.gov (United States)

    Kalia, Sandeep; Sehgal, Manik

    2014-01-01

    Proximal humerus fractures are rarely associated with axillary artery injury. We present a case of a 59-year-old female who had fracture neck humerus along with absent pulsations in the left upper limb after blunt trauma. Computed tomographic angiogram revealed complete occlusion of the left axillary artery. Urgent surgical intervention was done in the form of fixation of fracture followed by exploration and repair of axillary artery. Axillary artery was contused and totally occluded by fractured edge of humerus. Repair of the axillary artery was done using basilic vein graft harvested through the same incision. Postprocedure pulsations were present in the upper limb. PMID:25061530

  8. Balloon atrial septostomy through internal jugular vein in a 45-day-old child with transposition of great arteries

    Directory of Open Access Journals (Sweden)

    Padhi Sumanta

    2010-01-01

    Full Text Available Balloon atrial septostomy is a common palliative procedure in D-transposition of great arteries. It is technically easy before 2-3 weeks of age when the septum primum is thin. Femoral vein or umbilical vein, when available, is the common access used for this procedure. In situations when these accesses are not available or in case of inferior vena cava interruption, trans-hepatic access is used. Internal jugular vein (IJV access is not used as it is difficult to enter the left atrium through this route. We describe a case of successful Balloon atrial septostomy done through IJV in a 45-day-old child with emphasis on the technique, hardware and precautions necessary during the procedure.

  9. Transposition of brachiobasilic arteriovenous fistulae: improving the cosmetic effect without compromising patency.

    Science.gov (United States)

    Dellen, David van; Junejo, Muneer; Khambalia, Hussein; Campbell, Babatunde

    2016-01-01

    Introduction Subjects who undergo haemodialysis are living longer, which necessitates increasingly complex procedures for formation of arteriovenous fistulas. Basilic veins provide valuable additional venous 'real estate' but surgical transposition of vessels is required, which required a cosmetically disfiguring incision. A minimally invasive transposition method provides an excellent aesthetic alternative without compromised outcomes. Methods A retrospective review was made of minimally invasive brachiobasilic fistula transpositions (using two short incisions of <4 cm) between February 2005 and July 2011. Primary endpoints were one-year patency as well as the perioperative and late complications of the procedure. Results Thirty-one patients underwent 32 transposition procedures (eight pre-dialysis cases; 24 haemodialysis patients). All patients were treated with a minimally invasive method. Thirty-one procedures resulted in primary patency, with the single failure refashioned successfully. The only indication for a more invasive approach was intraoperative complications (two haematomas). All other complications presented late and were amenable to intervention (one aneurysm, one peri-anastomotic stricture). Conclusion Formation of arteriovenous fistulae using minimally invasive methods is a novel approach that ensures fistula patency with improved aesthetic outcomes and without significant morbidity. PMID:26688395

  10. Museographic transposition

    DEFF Research Database (Denmark)

    Mortensen, Marianne Foss

    2010-01-01

    reported. Museographic transposition was used as an analytical framework to investigate the development of an existing museum exhibit on animal adaptations to darkness. The analysis yielded a descriptive model of exhibition engineering as a three-stage process in which simultaneous processes of...

  11. Medial Antebrachial Cutaneous Nerve: Anatomical Relationship with the Medial Epicondyle, Basilic Vein and Brachial Artery / Nervio Cutneo Antebraquial Medial: Relacin Anatmica con el Epicndilo Medial, Vena Baslica y Arteria Braquial

    Scientific Electronic Library Online (English)

    Aomjai, Damwan; Sithiporn, Agthong; Chavarin, Amarase; Pattarapol, Yotnuengnit; Thanasil, Huanmanop; Vilai, Chentanez.

    2014-06-01

    Full Text Available El recorrido del nervio cutneo antebraquial medial (NCAM) proporciona la inervacin sensorial medial del antebrazo. Su anatoma se ha descrito en parte, porque los datos relativos a su patrn de ramificacin y distancias a puntos de referencia adyacentes son insuficientes. El propsito de este estu [...] dio fue proporcionar datos morfomtricos sobre la anatoma del NCAM, comparando entre lados y sexos. Se disecaron 96 miembros superiores de 26 hombres y 22 mujeres. Se encontr que 5 ramos del NCAM traspasaron la fascia profunda y llegaron 4 hasta la lnea interepicondilar (LIE). Presencia de 2 y 3 ramos se encontr en la mayora de los casos (>80%). Las distancias de estos ramos a los puntos anatmicos variaron considerablemente. En caso de ausencia de ramos, la distancia medial al epicndilo medial (EM) y arteria braquial (AB) fueron de aproximadamente 1,5 cm, mientras que a la vena baslica (VB) fueron 0,7 cm en ambos sexos. Independientemente del patrn de ramificacin, el NCAM podra pasar sobre o cerca (a menos de 0,5 cm ) del EM, VB y AB. Asimetra en el patrn de ramificacin se encontr en 50% de las muestras. Diferencias en algunos de los parmetros de medicin se observaron segn sexo, pero no por lado. Estos datos son relevantes para localizar el NCAM durante el bloqueo del nervio y la toma de injertos, sino tambin para evitar la lesin del nervio durante los procedimientos quirrgicos. Abstract in english Medial antebrachial cutaneous nerve (MACN) courses in the medial arm to provide sensory innervation to the medial forearm. Its anatomy has been partly described since data regarding its branching pattern and distances to adjacent landmarks are still lacking. The purpose of this study was to provide [...] morphometric anatomy of the MACN with comparisons between sides and sexes. Ninety-six upper extremities from 26 males and 22 females were dissected. We found that up to 5 branches of MACN pierced the deep fascia with the maximum of 4 reaching the interepicondylar line (IEL). Presence of 2 and 3 branches was found in the majority of cases (> 80%). The distances from these branches to the landmarks varied considerably. In case of no branch, the mean distances to the medial epicondyle (ME) and brachial artery (BA) were approximately 1.5 cm while those to the basilic vein (BV) were 0.7 cm in both sexes. Regardless of the branching pattern, the MACN could pass over or close (within 0.5 cm) to the ME, BV and BA. Asymmetry in the branching pattern was found in 50% of specimens. Sex but not side differences were observed in some measurement parameters. These data are crucial for not only localizing the MACN during nerve block and graft harvest but also avoiding the nerve injury during surgical procedures.

  12. Basil (Ocimum basilicum Genetic Variability and Viral Disease Assessment in Nigeria

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    O.D. Ojo

    2012-01-01

    Full Text Available The study aims at assessing Basils genetic phenotypic variability and viral disease incidence in Nigeria for sustainable pathological interventions. Basil (Ocimum basilicum is important for its medicinal and nutritive value. It is highly adaptable as a potential crop in the tropics and could therefore enhance the food security of sub Saharan Africa nations. Germplasm seed evaluation and characterization was therefore carried out from the nationwide National Horticultural Research Institute (NIHORT seed collection survey to expand NIHORT basil genetic base. The field layout was completely randomized design with five replications. The treatments were: O. basilicum, O. gratissimum and the local basil. Treatments were randomly allocated per replication. There were significant phenotypic differences in the O. basilicum variety. These differences were observed in the plant coloration ranging from deep to light purple coloration of stem, leaf, leaf vein and petiole. Our observations also revealed for the first time significant tolerance to Venial Mottle Mosaic Virus (VMMV in the purple colored compared to the green O. basilicum in the early stages of growth till 50% anthesis. This is the first report of this observation in the African continent. Tolerance to VMMV symptoms increased significantly (LSD 5% with purplish coloration. We concluded that inducement of purplish coloration in Basil through breeding might improve tolerance to VMMV and thereby increase market value of Basil with sustainable pathological interventions.

  13. Sleeping Beauty Transposition.

    Science.gov (United States)

    Ivics, Zoltn; Izsvk, Zsuzsanna

    2015-04-01

    Sleeping Beauty (SB) is a synthetic transposon that was constructed based on sequences of transpositionally inactive elements isolated from fish genomes. SB is a Tc1/mariner superfamily transposon following a cut-and-paste transpositional reaction, during which the element-encoded transposase interacts with its binding sites in the terminal inverted repeats of the transposon, promotes the assembly of a synaptic complex, catalyzes excision of the element out of its donor site, and integrates the excised transposon into a new location in target DNA. SB transposition is dependent on cellular host factors. Transcriptional control of transposase expression is regulated by the HMG2L1 transcription factor. Synaptic complex assembly is promoted by the HMGB1 protein and regulated by chromatin structure. SB transposition is highly dependent on the nonhomologous end joining (NHEJ) pathway of double-strand DNA break repair that generates a transposon footprint at the excision site. Through its association with the Miz-1 transcription factor, the SB transposase downregulates cyclin D1 expression that results in a slowdown of the cell-cycle in the G1 phase, where NHEJ is preferentially active. Transposon integration occurs at TA dinucleotides in the target DNA, which are duplicated at the flanks of the integrated transposon. SB shows a random genome-wide insertion profile in mammalian cells when launched from episomal vectors and "local hopping" when launched from chromosomal donor sites. Some of the excised transposons undergo a self-destructive autointegration reaction, which can partially explain why longer elements transpose less efficiently. SB became an important molecular tool for transgenesis, insertional mutagenesis, and gene therapy. PMID:26104705

  14. Bounded Rationality in Transposition Processes

    DEFF Research Database (Denmark)

    Vollaard, Hans; Martinsen, Dorte Sindbjerg

    2014-01-01

    Studies explaining the timeliness and correctness of the transposition of EU directives into national legislation have provided rather inconclusive findings. They do not offer a clear-cut prediction concerning the transposition of the patients rights directive, which is one of the first that concerns the organisation and financing of national healthcare systems. This article applies the perspective of bounded rationality to explain (irregularities in) the timely and correct transposition of EU ...

  15. [Operative technique: The clitoral transposition].

    Science.gov (United States)

    Chevrot, A; Lousquy, R; Arfi, A; Haddad, B; Paniel, B J; Touboul, C

    2015-10-01

    Female sexual mutilations result in an important physical and mental suffering. A large number of women have been affected and require a global management, including surgical clitoral transposition. This surgical technique is allowing a rapid improvement of clinical symptoms. In this article, we will describe the indications and operative technique of the clitoral transposition. PMID:25818112

  16. Sorting by Transpositions is Difficult

    CERN Document Server

    Bulteau, Laurent; Rusu, Irena

    2010-01-01

    In comparative genomics, a transposition is an operation that exchanges two consecutive sequences of genes in a genome. The transposition distance, that is, the minimum number of transpositions needed to transform a genome into another, is, according to numerous studies, a relevant evolutionary distance. The problem of computing this distance when genomes are represented by permutations, called the Sorting by Transpositions problem, has been introduced by Bafna and Pevzner in 1995. It has naturally been the focus of a number of studies, but the computational complexity of this problem has remained undetermined for 15 years. In this paper, we answer this long-standing open question by proving that the Sorting by Transpositions problem is NP-hard. As a corollary of our result, we also prove that the following problem is NP-hard: given a permutation pi, is it possible to sort pi using db(pi)/3 permutations, where db(pi) is the number of breakpoints of pi?

  17. Mineral composition of different basil (Ocimum spp.) genotypes

    OpenAIRE

    Li?ina Vlado ?.; Jela?i? Slavica ?.; Beatovi? Damir V.; Anti?-Mladenovi? Svetlana B.

    2014-01-01

    This experiment investigated mineral composition of 13 basil genotypes (Ocimum spp.) in order to find varieties supporting human dietary intake of essential minerals and to evaluate basil genotypes which could serve for herbal production as raw material in pharmaceutical or food processing industry. In addition, this study tested a potential risk of the accumulation of heavy metals during the commercial production of basil on agricultural soil. Mineral comp...

  18. Chemical Diversity in Basil (Ocimum sp.) Germplasm

    OpenAIRE

    da Costa, Andra Santos; Arrigoni-Blank, Maria de Ftima; de Carvalho Filho, Jos Luiz Sandes; de Santana, Ala Dayane Dantas; Santos, Darlisson de Alexandria; Alves, Pricles Barreto; Blank, Arie Fitzgerald

    2015-01-01

    The present study aimed to chemically characterize 31 accessions and seven cultivars of basil. The percentage composition of the essential oils of the accessions and cultivars was based on the 14 most abundant constituents: 1,8-cineole, linalool, methyl chavicol, neral, nerol, geraniol, geranial, methyl cinnamate, ?-bourbonene, methyl eugenol, ?-trans-bergamotene, germacrene-D, epi-?-cadinol, and ?-cadinene. The genetic materials were classified into eight clusters according to the chemical c...

  19. Non-conformable, partial and conformable transposition

    DEFF Research Database (Denmark)

    Knig, Thomas; Mder, Lars Kai

    2013-01-01

    -conformable. Compared with existing transposition models, which do not distinguish between different transposition outcomes, we examine the factors influencing each transposition process by means of a competing risk analysis. We find that preference-related factors, in particular the disagreement of a member state and...

  20. Intrahepatic transposition of bile ducts.

    Science.gov (United States)

    Deli?, Jasmin; Savkovi?, Admedina; Isakovi?, Eldar; Markovi?, Sergije; Bajtarevic, Alma; Denjali?, Amir

    2012-01-01

    Objective. To describe the intrahepatic bile duct transposition (anatomical variation occurring in intrahepatic ducts) and to determine the frequency of this variation. Material and Methods. The researches were performed randomly on 100 livers of adults, both sexes. Main research methods were anatomical macrodissection. As a criterion for determination of variations in some parts of bile tree, we used the classification of Segmentatio hepatis according to Couinaud (1957) according to Terminologia Anatomica, Thieme Stuugart: Federative Committee on Anatomical Terminology, 1988. Results. Intrahepatic transposition of bile ducts was found in two cases (2%), out of total examined cases (100): right-left transposition (right segmental bile duct, originating from the segment VIII, joins the left liver duct-ductus hepaticus sinister) and left-right intrahepatic transposition (left segmental bile duct originating from the segment IV ends in right liver duct-ductus hepaticus dexter). Conclusion. Safety and success in liver transplantation to great extent depends on knowledge of anatomy and some common embryological anomalies in bile tree. Variations in bile tree were found in 24-43% of cases, out of which 1-22% are the variations of intrahepatic bile ducts. Therefore, good knowledge on ductal anatomy enables good planning, safe performance of therapeutic and operative procedures, and decreases the risk of intraoperative and postoperative complications. PMID:22550601

  1. Chicoric Acid Levels in Basil (Ocimum basilicum L.)

    Science.gov (United States)

    Recently, we reported the presence of chicoric acid in basil leaves (confirmed by co-chromatography with purchased standard). Chicoric acid being the chief phenolic of the Echinacea purpurea plant which is popularly consumed as a dietary supplement. For this study, basil products commonly purchased ...

  2. Antioxidant properties of various solvent extracts from purple basil

    Science.gov (United States)

    Ye?ilo?lu, Ye?im; ?it, Latif?ah

    2012-09-01

    Water, ethanol and acetone extracts from leaves and flowers of purple basil, one of the most popular spices consumed in the Thrace region of Turkey, were tested in vitro for their ability to inhibit peroxidation of lipids, to scavenge DPPH, hydrogen peroxide, superoxide anion, to reduce Fe(III) to Fe(II) and to chelate Fe(II) ions. The results showed that purple basil contained naturally occurring antioxidant components and possessed antioxidant activity which may be attributed to its lipid peroxidation inhibitory, radical scavenging and metal chelating activities. It was concluded that purple basil might be a potential source of antioxidants.

  3. Vein Problems Related to Varicose Veins

    Science.gov (United States)

    ... Other types of varicose veins include venous lakes, reticular veins, and hemorrhoids. Venous lakes are varicose veins that appear on the face and neck. Reticular veins are flat blue veins often seen behind ...

  4. Transposition of Domain Knowledge into Educational Games

    DEFF Research Database (Denmark)

    Marchetti, Emanuela; Jensen, Kristoffer; Valente, Andrea

    2014-01-01

    Starting from Rogoff’s (1990) theory of apprenticeship in thinking and Apter’s (1987) reversal theory, this paper discusses the formulation of PlayDT (Playful Domain Transposition), a new approach to support the transposition of complex concepts, from different knowledge domains, into playful...

  5. Syllable Transposition Effects in Korean Word Recognition

    Science.gov (United States)

    Lee, Chang H.; Kwon, Youan; Kim, Kyungil; Rastle, Kathleen

    2015-01-01

    Research on the impact of letter transpositions in visual word recognition has yielded important clues about the nature of orthographic representations. This study investigated the impact of syllable transpositions on the recognition of Korean multisyllabic words. Results showed that rejection latencies in visual lexical decision for

  6. The Effect of Basil Leaf (Oscimum sanctum) to the Thrombocytes Number on Mice

    OpenAIRE

    Yoni Astuti; Rum Wijayanti

    2016-01-01

    Basil (Oscimum sanctum) is herbal that is spread widely in Indonesia. Basil contains abundant of substances. One of the functions on basil was anti-thrombocytes effect. This effect is associated with platelet function as a mechanical plug in the vascular injury during the normal homeostatic response. The disruption in thrombocytes function leads to disturb the blood clotting process. Therefore, The aims of the research were to prove the impact of basil on the number of thrombocytes. This rese...

  7. Varicose Veins

    Science.gov (United States)

    ... INST HEALTH LIBRARY User Name Password Sign In Cardiology Patient Page Varicose Veins Gregory Piazza , MD, MS ... Section Footnotes The information contained in this Circulation Cardiology Patient Page is not a substitute for medical ...

  8. Varicose Veins

    Science.gov (United States)

    ... family history, older age, gender, pregnancy, overweight or obesity , lack of movement, and leg trauma. Varicose veins are treated with lifestyle changes and medical procedures. The goals of treatment ...

  9. Spider Veins

    Science.gov (United States)

    ... for Every Season How to Choose the Best Skin Care Products In This Section Dermatologic Surgery What is dermatologic ... for Every Season How to Choose the Best Skin Care Products Spider Veins Treatment Options Learn more about treatment ...

  10. Focus on Varicose Veins

    Science.gov (United States)

    ... mistaken for varicose veins are spider veins and reticular veins, which are the visible purple or greenish- ... are usually located at the surface skin layers. Reticular veins are larger than spider veins but smaller ...

  11. Transposition and transposition immunity of transposon Tn3 derivatives having different ends.

    OpenAIRE

    Arthur, A.; Nimmo, E.; Hettle, S; Sherratt, D

    1984-01-01

    Novel Tn1/3 derivatives that contained either two left- or two right-hand ends of the transposon were constructed in a small plasmid. Both transposed at reasonable frequencies to give normal transposition products, suggesting that only the 38-bp inverted repeats of Tn3 are essential for transposition. Plasmids containing transposon derivatives with only one end (either left or right) undergo transposase-dependent transposition between replicons at much lower frequencies, resulting in co-integ...

  12. In vitro Anti-Helicobacter pylori Effects of Sweet Basil (Ocimum basilicum L. and Purple Basil (Ocimum basilicum var. purpurascens

    Directory of Open Access Journals (Sweden)

    M. Mahboobeh Nakhaei

    2006-01-01

    Full Text Available Anti-Helicobacter pylori effects of leaves of Ocimum basilicum L. (sweet basil, Lamiaceae and Ocimum basilicum var. purpurascens (purple basil, Lamiaceae were evaluated. Macerated aqueous and methanol extracts were tested against 45 clinical isolates of Helicobacter pylori using paper Disc Diffusion Method (DDM on modified egg yolk emulsion agar (EYE agar. Although there were small differences in sensitivity among the isolates tested, but all isolates were susceptible to methanol and aqueous extracts. The Minimum Inhibitory Concentrations (MIC of the extracts from leaves of sweet basil and purple basil were 677 and 729 ?g mL-1, respectively using agar dilution method. Antibacterial constituents of sweet basil extract were stable after one month of storage at 4C but lost 31% its activity after 4 weeks at room temperature. The extract preserved its activity when heated to 80C for 30 min and autoclaved at 121C for 20 min. It was stable at pH 5-8.

  13. Transposition of the great arteries

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    Castela Eduardo

    2008-10-01

    Full Text Available Abstract Transposition of the great arteries (TGA, also referred to as complete transposition, is a congenital cardiac malformation characterised by atrioventricular concordance and ventriculoarterial (VA discordance. The incidence is estimated at 1 in 3,5005,000 live births, with a male-to-female ratio 1.5 to 3.2:1. In 50% of cases, the VA discordance is an isolated finding. In 10% of cases, TGA is associated with noncardiac malformations. The association with other cardiac malformations such as ventricular septal defect (VSD and left ventricular outflow tract obstruction is frequent and dictates timing and clinical presentation, which consists of cyanosis with or without congestive heart failure. The onset and severity depend on anatomical and functional variants that influence the degree of mixing between the two circulations. If no obstructive lesions are present and there is a large VSD, cyanosis may go undetected and only be perceived during episodes of crying or agitation. In these cases, signs of congestive heart failure prevail. The exact aetiology remains unknown. Some associated risk factors (gestational diabetes mellitus, maternal exposure to rodenticides and herbicides, maternal use of antiepileptic drugs have been postulated. Mutations in growth differentiation factor-1 gene, the thyroid hormone receptor-associated protein-2 gene and the gene encoding the cryptic protein have been shown implicated in discordant VA connections, but they explain only a small minority of TGA cases. The diagnosis is confirmed by echocardiography, which also provides the morphological details required for future surgical management. Prenatal diagnosis by foetal echocardiography is possible and desirable, as it may improve the early neonatal management and reduce morbidity and mortality. Differential diagnosis includes other causes of central neonatal cyanosis. Palliative treatment with prostaglandin E1 and balloon atrial septostomy are usually required soon after birth. Surgical correction is performed at a later stage. Usually, the Jatene arterial switch operation is the procedure of choice. Whenever this operation is not feasible, adequate alternative surgical approach should be implemented. With the advent of newer and improved surgical techniques and post operative intensive care, the long-term survival is approximately 90% at 15 years of age. However, the exercise performance, cognitive function and quality of life may be impaired.

  14. Byzantine poetry and the paradox of Basil II's reign

    OpenAIRE

    Lauxtermann, Marc; Magdalino, Paul

    2003-01-01

    This book chapter is not available in ORA. Citation: Lauxtermann, M. (2003) Byzantine poetry and the paradox of Basil II's reign. In: Magdalino, P. (ed.) Byzantium in the Year 1000. Leiden: Brill, pp. 233-270. N.B. Prof Lauxtermann is now based at the Faculty of Medieval and Modern Languages, University of Oxford.

  15. An audio encryption using transposition method

    Directory of Open Access Journals (Sweden)

    Ahmad Jawahir

    2015-07-01

    Full Text Available Encryption is a technique to secure sounds data from attackers. In this study, transposition technique that corresponds to a WAV file extension is used. The performance of the transposition technique is measured using the mean square error (MSE. In the test, the value of MSE of the original and encrypted audio files were compared; the original and decrypted audio files used the correct password is SEMBILAN and the incorrect password is DELAPAN. The experimental results showed that the original and encrypted audio files, and the original and decrypted audio files used the correct password that has a value of MSE = 0, and with the incorrect one with a value of MSE 0.00000428 or ? 0. In other words, the transposition technique is able to ensure the security of audio data files.

  16. Permanent magnet machine with windings having strand transposition

    Science.gov (United States)

    Qu, Ronghai (Clifton Park, NY); Jansen, Patrick Lee (Scotia, NY)

    2009-04-21

    This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.

  17. Pig transgenesis by Sleeping Beauty DNA transposition

    DEFF Research Database (Denmark)

    Jakobsen, Jannik E.; Li, Juan; Kragh, Peter M.; Moldt, Brian; Lin, Lin; Liu, Ying; Schmidt, Mette; Winther, Kjeld D.; Schyth, Brian Dall; Holm, Ida E.; Vajta, Gabor; Bolund, Lars; Callesen, Henrik; Jrgensen, Arne L.; Nielsen, Anders L.; Mikkelsen, Jacob G.

    2011-01-01

    disease models. In this report, we present transgenic pigs created by Sleeping Beauty DNA transposition in primary porcine fibroblasts in combination with somatic cell nuclear transfer by handmade cloning. Gttingen minipigs expressing green fluorescent protein are produced by transgenesis with DNA...... plasmid DNA. Our findings illustrate critical issues related to DNA transposon-directed transgenesis, including coincidental plasmid insertion and relatively low Sleeping Beauty transposition activity in porcine fibroblasts, but also provide a platform for future development of porcine disease models...... using the Sleeping Beauty gene insertion technology....

  18. Transpositions and malpositions of the great arteries

    International Nuclear Information System (INIS)

    The transposition of the great arteries afters to an abnormal connection and relation of the great arteries in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle, while the malposition of the great arteries indicates an abnormal relationship between the great arteries in which the great arteries are not transposed across the ventricular septum but they are malposed, as is seen in double outlet right ventricle, double outlet left ventricle and single ventricles. Transpositions and malpositions of the great arteries are understood as a spectrum of malformation caused by abnormal conal development and can be included in the common category of 'conotruncal malpositions'. Authors analized 32 cases of transpositions and malpositions of the great arteries in which cineangiocardiographies were done at the Department of Radiology, Seoul National University Hospital in recent 17 months, with specific references to the segmental combinations, the types of conus and the relations and courses of the great arteries. The results are as follows; 1. Cases included are 8 cases of complete transposition of the great arteries, 9 cases of corrected transposition of the great arteries, 12 cases of double outlet right ventricle, 1 case of anatomically corrected malposition of the great arteries, 1 cases of double inlet left ventricle and 1 case of double inlet right ventricle. 2. Types of conus are subaortic in 19 and bilateral in 13. In 19 cases with subaortic conus, 17 are transposition of the great arteries and 2 are double inlet left ventricle and double inlet right ventricle. In 13 cases with bilateral conus, 12 are double outlet right ventricle and 1 is anatomically corrected malposition of the great arteries. 3.High tendency of side-by-side interrelationship of semilunar valves is noted in cases with corrected transposition of the great arteries. But there is no characteristic tendency of side-by-side ro anterior-posterior semilunar interrelationship in cases with complete transposition of the great arteries and double outlet right ventricle. 4. There are two cases of exception to 'loop rule' 5. There are two cases of exception to 'visceroatrial concordance rule'. 6. Inappropriate position of aortic arch, i. e., right arch in situs solitus and left arch in situs inversus, is noted in 4 cases. 7. For more accurate diagnosis, selective biventriculography using biplane cineradiography is necessary

  19. Basil (Ocimum basilicum) Genetic Variability and Viral Disease Assessment in Nigeria

    OpenAIRE

    O.D. Ojo; O.S. Adebayo; O. Olaleye; U. Orkpeh

    2012-01-01

    The study aims at assessing Basils genetic phenotypic variability and viral disease incidence in Nigeria for sustainable pathological interventions. Basil (Ocimum basilicum) is important for its medicinal and nutritive value. It is highly adaptable as a potential crop in the tropics and could therefore enhance the food security of sub Saharan Africa nations. Germplasm seed evaluation and characterization was therefore carried out from the nationwide National Horticultural Research Institute...

  20. L'algebre de Lie des transpositions

    OpenAIRE

    Marin, Ivan

    2005-01-01

    For any $n \\geq 3$ we obtain the decomposition in simple factors of the Lie subalgebra of the group algebra of the symmetric group on $n$ letters generated by the transpositions. This enables us to determine the algebraic hull of the braid group $\\B_n$ and of several of its subgroups inside the representations of the Iwahori-Hecke algebra of type A.

  1. Facts about Transposition of the Great Arteries

    Science.gov (United States)

    ... body bypasses the lungs and is pumped back out to the body. This occurs because the main connections are reversed. ... right side and carries oxygen-poor blood back out to the body. The result of transposition of these two vessels ...

  2. Transposition in plants: a molecular model

    OpenAIRE

    Saedler, H.; Nevers, P.

    1985-01-01

    A molecular model for transposition of plant transposable elements is described. This process may occur via excision and re-integration of the element. Excision generates DNA sequence diversity which suggests the participation of DNA repair enzymes in the healing of the donor molecule.

  3. Resistance Against Basil Downy Mildew in Ocimum Species.

    Science.gov (United States)

    Ben-Naim, Yariv; Falach, Lidan; Cohen, Yigal

    2015-06-01

    Downy mildew, caused by the oomycete Peronospora belbahrii, is a devastating disease of sweet basil. In this study, 113 accessions of Ocimum species (83 Plant Introduction entries and 30 commercial entries) were tested for resistance against downy mildew at the seedling stage in growth chambers, and during three seasons, in the field. Most entries belonging to O. basilicum were highly susceptible whereas most entries belonging to O. americanum, O. kilimanadascharicum, O. gratissimum, O. campechianum, or O. tenuiflorum were highly resistant at both the seedling stage and the field. Twenty-seven highly resistant individual plants were each crossed with the susceptible sweet basil 'Peri', and the F1 progeny plants were examined for disease resistance. The F1 plants of two crosses were highly resistant, F1 plants of 24 crosses were moderately resistant, and F1 plants of one cross were susceptible, suggesting full, partial, or no dominance of the resistance gene(s), respectively. These data confirm the feasibility of producing downy mildew-resistant cultivars of sweet basil by crossing with wild Ocimum species. PMID:25844828

  4. Malposition of a Peripherally Inserted Central Venous Catheter in the Graft Hepatic Vein.

    Science.gov (United States)

    Ersoy, Zeynep; Araz, Co?kun; Ta?k?n, Duygu; Moray, Gkhan; Torgay, Adnan

    2015-11-01

    Central venous catheters are used for delivering medications and parenteral nutrition, measuring hemodynamic variations, and providing long-term intravenous access. In our clinic, during liver transection using a living-liver donor, peripherally inserted central venous catheters are generally preferred because they involve a less invasive technique with a lower risk of complications. In this report, we present the case of a 36-year-old male liver donor into whom we peripherally inserted a central venous catheter from his left basilic vein. After transecting the hepatic vein, the surgeon found foreign material inside the venous lumen, which turned out to be the distal segment of the catheter. PMID:26640920

  5. What Causes Varicose Veins?

    Science.gov (United States)

    ... Weak vein walls may cause weak valves. Normally, the walls of the veins are elastic (stretchy). If these ... become like an overstretched rubber band. This makes the walls of the veins longer and wider, and it ...

  6. Spatial transposition gradients in visual working memory.

    Science.gov (United States)

    Rerko, Laura; Oberauer, Klaus; Lin, Hsuan-Yu

    2014-01-01

    In list memory, access to individual items reflects limits of temporal distinctiveness. This is reflected in the finding that neighbouring list items tend to be confused most often. This article investigates the analogous effect of spatial proximity in a visual working-memory task. Items were presented in different locations varying in spatial distance. A retro-cue indicated the location of the item relevant for the subsequent memory test. In two recognition experiments, probes matching spatially close neighbours of the relevant item led to more false alarms than probes matching distant neighbours or non-neighbouring memory items. In two probed-recall experiments, one with simultaneous, the other with sequential memory item presentation, items closer to the cued location were more frequently chosen for recall than more distant items. These results reflect a spatial transposition gradient analogous to the temporal transposition gradient in serial recall and challenge fixed-capacity models of visual working memory (WM). PMID:23663175

  7. Pig transgenesis by Sleeping Beauty DNA transposition

    DEFF Research Database (Denmark)

    Jakobsen, Jannik E.; Li, Juan; Kragh, Peter M; Moldt, Brian; Lin, Lin; Liu, Ying; Schmidt, Mette; Winther, Kjeld Dahl; Schyth, Brian Dall; Holm, Ida Elisabeth; Vajta, Gabor; Bolund, Lars; Callesen, Henrik; Jrgensen, Arne Lund; Nielsen, Anders Lade; Mikkelsen, Jacob Giehm

    2011-01-01

    Modelling of human disease in genetically engineered pigs provides unique possibilities in biomedical research and in studies of disease intervention. Establishment of methodologies that allow efficient gene insertion by non-viral gene carriers is an important step towards development of new disease models. In this report, we present transgenic pigs created by Sleeping Beauty DNA transposition in primary porcine fibroblasts in combination with somatic cell nuclear transfer by handmade cloning. G...

  8. Coping with EU environmental legislation : transposition principles and practices

    DEFF Research Database (Denmark)

    Anker, Helle Tegner; de Graaf, Kars

    2015-01-01

    A burden reducing agenda has spurred an increased interest in how EU environmental legislation is transposed into national legislationmost prominently reflected in the principle of no gold-plating. Yet, an important question is to what extent transposition principles and practices may ensure a coherent and accessible body of environmental legislation, while at the same time ensuring adequate transposition of EU environmental legislation. This article analyses the existence, or emergence, of transposition principles and practices in three Member Statesthe United Kingdom, the Netherlands and Denmark. It also examines how EU initiatives may influence these principles and practices. The article concludes that the steering of transposition processes by general transposition principles and objectives alone, and in particular those dominated by a burden reducing agenda, has a limited focus on coherence and accessibility with respect to environmental legislation and that such issues deserve more attention in the transposition process.

  9. Survival of pathogenic Escherichia coli on basil, lettuce, and spinach.

    Science.gov (United States)

    Markland, S M; Shortlidge, K L; Hoover, D G; Yaron, S; Patel, J; Singh, A; Sharma, M; Kniel, K E

    2013-12-01

    The contamination of lettuce, spinach and basil with pathogenic E. coli has caused numerous illnesses over the past decade. E. coli O157:H7, E. coli O104:H4 and avian pathogenic E. coli (APECstx- and APECstx+) were inoculated on basil plants and in promix substrate using drip and overhead irrigation. When overhead inoculated with 7 log CFU/ml of each strain, E. coli populations were significantly (P = 0.03) higher on overhead-irrigated plants than on drip-irrigated plants. APECstx-, E. coli O104:H4 and APECstx+ populations were recovered on plants at 3.6, 2.3 and 3.1 log CFU/g at 10 dpi (days post-inoculation), respectively. E. coli O157:H7 was not detected on basil after 4 dpi. The persistence of E. coli O157:H7 and APECstx- were similar when co-inoculated on lettuce and spinach plants. On spinach and lettuce, E. coli O157:H7 and APEC populations declined from 5.7 to 6.1 log CFU/g and 4.5 log CFU/g, to undetectable at 3 dpi and 0.6-1.6 log CFU/g at 7 dpi, respectively. The detection of low populations of APEC and E. coli O104:H4 strains 10 dpi indicates these strains may be more adapted to environmental conditions than E. coli O157:H7. This is the first reported study of E. coli O104:H4 on a produce commodity. PMID:23280331

  10. Basil Buntings Aesthetic Function: Art vs. Intellect

    OpenAIRE

    Raheleh S. Aaraaby; Farid Parvaneh

    2012-01-01

    Basil Bunting is most commonly thought of as 1930s and 1940s poet grouped with some other poets such as Louis Zukofsky and Lorine Niedecker under the label Objectivist . The present researchers seek to achieve two goals in this paper. The fi rst goal is to argue that Bunting pushes the aesthetic function to the very brink of sense but holds it there, oscillating on the cusp of referential meaning, thus creating a contested, liminal space where sound and sense content for the constr...

  11. Effects of biocides on chlorophyll contents of detached basil leaves

    Directory of Open Access Journals (Sweden)

    Titima Arunrangsi

    2013-06-01

    Full Text Available Herbicides and insecticides have been widely and intensively used in agricultural areas worldwide to enhance crop yield. However, many biocides cause serious environmental problems. In addition, the biocides may also have some effects on the treated agricultural crops. To study effects of biocides on chlorophyll content in detached basil leaves, 2,4-D dimethylamine salt (2,4 D-Amine, paraquat, carbosulfan, and azadirachtin, were chosen as representatives of biocide. After applying the chemicals to detached basil leaves overnight in darkness, chlorophyll contents were determined. Only treatment with 2,4 D-Amine resulted in reduction of chlorophyll contents significantly compared to treatment with deionized (DI water. In the case of paraquat and carbosulfan, chlorophyll contents were not significantly changed, while slightly higher chlorophyll contents, compared to DI water, after the treatment with azadirachtin, were observed. The results indicated that 2,4 D-Amine shows an ability to accelerate chlorophyll degradation, but azadirachtin helps to retard chlorophyll degradation, when each biocide is used at the concentration recommended by the manufacturer.

  12. Transposition of the great arteries in MRI; Transposition der grossen Arterien im MRT des Herzens

    Energy Technology Data Exchange (ETDEWEB)

    Zaehringer, C.; Leiner, T.; Maki, J.H.; Potthast, S.

    2014-02-15

    The contribution on transposition of the great arteries (TGA) in the heart NMR images covers the following issues: different forms of TGA (dextro-TGA and levo-TGA), therapeutic options, long-term complication of TGA and the importance of heart NMR imaging in case of TGA.

  13. Basil Downy Mildew (Peronospora belbahrii): Discoveries and Challenges Relative to Its Control.

    Science.gov (United States)

    Wyenandt, Christian A; Simon, James E; Pyne, Robert M; Homa, Kathryn; McGrath, Margaret T; Zhang, Shouan; Raid, Richard N; Ma, Li-Jun; Wick, Robert; Guo, Li; Madeiras, Angela

    2015-07-01

    Basil (Ocimum spp.) is one of the most economically important and widely grown herbs in the world. Basil downy mildew, caused by Peronospora belbahrii, has become an important disease in sweet basil (O. basilicum) production worldwide in the past decade. Global sweet basil production is at significant risk to basil downy mildew because of the lack of genetic resistance and the ability of the pathogen to be distributed on infested seed. Controlling the disease is challenging and consequently many crops have been lost. In the past few years, plant breeding efforts have been made to identify germplasm that can be used to introduce downy mildew resistance genes into commercial sweet basils while ensuring that resistant plants have the correct phenotype, aroma, and tastes needed for market acceptability. Fungicide efficacy studies have been conducted to evaluate current and newly developed conventional and organic fungicides for its management with limited success. This review explores the current efforts and progress being made in understanding basil downy mildew and its control. PMID:25894318

  14. ??????? ??????????? ????? ??????? ???????"Free transposition" of The Life of Theodore Studite

    Directory of Open Access Journals (Sweden)

    Tamara P. Lnngren

    2012-01-01

    Full Text Available This article deals with the manuscript tradition named "free transposition" applied to The Life of Theodore Studite in Old Russian literature. Evidence is presented that the author of this "free transposition" was indeed Nil Sorskij. The investigation of eight recently discovered copies has made it possible to establish their mutual interdependence and to construct the corresponding stemma.

  15. Congenitally corrected transposition with atrioventricular septal defect.

    Science.gov (United States)

    Attie, F; Iturralde, P; Zabal, C; Rijlaarsdam, M; Buendia, A; Colin, L; Vargas-Barron, J; Muoz-Castellanos, L

    1998-10-01

    We describe 4 cases of congenitally corrected transposition associated with atrioventricular septal defect, diagnosed by echocardiography and angiocardiography. Two had usual atrial arrangement and two had mirror imaged atrial arrangement . All cases were associated with subpulmonary valvar stenosis. All patients presented with cyanosis and were in sinus rhythm. Atrioventricular septal defect with common atrioventricular junction was easily diagnosed on the basis of a common atrioventricular valve permitting interatrial and interventricular communications. All patients had balanced right and left ventricles. The echocardiographic recognition of the ventricles was based on the presence of the moderator band within the morphologically right ventricle, the characteristics of the apical septal trabeculations, and the shape of the ventricles. Angiocardiographic recognition of the ventricles was achieved on the basis of right and left ventriculography. In one case with usual atrial arrangement, we recorded two His bundle potentials, one anteriorly and another posteriorly. Atrial stimulation revealed blocked atrioventricular conduction at the level of the posterior bundle, and normal atrioventricular conduction through the anterior bundle. In both cases with atrial mirror-imagery, only a posterior His bundle potential was found, with normal atrioventricular conduction revealed by atrial stimulation The clinical course with this combination depends on the other lesions present in addition to the common atrioventricular valve. Our electrophysiological studies show that the conduction system in presence of a common atrioventricular valve is as expected for congenitally corrected transposition with two atrioventricular valves. PMID:9855101

  16. Pig transgenesis by Sleeping Beauty DNA transposition

    DEFF Research Database (Denmark)

    Jakobsen, Jannik E.; Li, Juan

    2011-01-01

    Modelling of human disease in genetically engineered pigs provides unique possibilities in biomedical research and in studies of disease intervention. Establishment of methodologies that allow efficient gene insertion by non-viral gene carriers is an important step towards development of new disease models. In this report, we present transgenic pigs created by Sleeping Beauty DNA transposition in primary porcine fibroblasts in combination with somatic cell nuclear transfer by handmade cloning. Gttingen minipigs expressing green fluorescent protein are produced by transgenesis with DNA transposon vectors carrying the transgene driven by the human ubiquitin C promoter. These animals carry multiple copies (from 8 to 13) of the transgene and show systemic transgene expression. Transgene-expressing pigs carry both transposase-catalyzed insertions and at least one copy of randomly inserted plasmid DNA. Our findings illustrate critical issues related to DNA transposon-directed transgenesis, including coincidental plasmid insertion and relatively low Sleeping Beauty transposition activity in porcine fibroblasts, but also provide a platform for future development of porcine disease models using the Sleeping Beauty gene insertion technology. Udgivelsesdato: First online 29 August 2010

  17. A teoria de Basil Bernstein: alguns aspectos fundamentais

    Directory of Open Access Journals (Sweden)

    Ana Maria Morais

    2007-12-01

    Full Text Available The article begins with a reference to the pieces of work that Basil Bernstein considered to have been the landmarks of the evolution of his thought. This is followed by a detailed description of the two models that contain the main concepts of his theory Model of Cultural Reproduction and Transformation and Model of Pedagogic Discourse where the theoretical meaning of these models and concepts is explained and where are given some examples of how to put them into practice at the level of pedagogic texts and contexts. The article also includes the most recent developments of Bernsteins thought by explaining his ideas about the forms discourses can take Vertical and Horizontal Discourses. Finally, Bernsteins theory is approached within the framework of the empirical research, highlighting his epistemological positioning and explicating the methodological model that he suggested should be the driving force of any theory.

  18. Rapid Staining Method to Detect and Identify Downy Mildew (Peronospora belbahrii in Basil

    Directory of Open Access Journals (Sweden)

    Adolfina R. Koroch

    2013-07-01

    Full Text Available Premise of the study: Demand for fresh-market sweet basil continues to increase, but in 2009 a new pathogen emerged, threatening commercial field/greenhouse production and leading to high crop losses. This study describes a simple and effective staining method for rapid microscopic detection of basil downy mildew (Peronospora belbahrii from leaves of basil (Ocimum basilicum. Methods and Results: Fresh leaf sections infected with P. belbahrii were placed on a microscope slide, cleared with Visikol, and stained with iodine solution followed by one drop of 70% sulfuric acid. Cell walls of the pathogen were stained with a distinct coloration, providing a high-contrast image between the pathogen and plant. Conclusions: This new staining method can be used successfully to identify downy mildew in basil, which then can significantly reduce its spread if identified early, coupled with mitigation strategies. This technique can facilitate the control of the disease, without expensive and specialized equipment.

  19. Essential oil composition from twelve varieties of basil (Ocimum spp grown in Colombia

    Directory of Open Access Journals (Sweden)

    Via Amparo

    2003-01-01

    Full Text Available Essential oil compositions of aerial parts from twelve basil cultivars (Ocimum spp were analysed by gas chromatography-mass spectrometry (GC-MS. Ten of them were characterized by the presence of a high percentage of methyl cinnamate (35-80%, which defined the chemotype for these varieties. Only one presented the caryophyllene chemotype and another, the linalool chemotype. Three of the basils, "purple ruffles", "little virgin" and "purple virgin" exhibited the methyl cinnamate > linalool subtype. "White compact" and "white ruffles" showed the methyl cinnamate > linalool > 1,8-cineole subtype. Methyl cinnamate > methyl eugenol was the subtype for "purple castle". The variety "large green leaves" exhibited the linalool > methyl cinnamate subtype. Caryophyllene > methyl eugenol subtype was determined for "clove basil". The rest of the basils "cinnamon", "purple lovingly", "sweet castle" and "purple long-legged", belonged to the methyl cinnamate chemotype in which methyl cinnamate constituted more than 62% of the total essential oil content.

  20. Rapid staining method to detect and identify downy mildew (Peronospora belbahrii) in basil1

    Science.gov (United States)

    Koroch, Adolfina R.; Villani, Thomas S.; Pyne, Robert M.; Simon, James E.

    2013-01-01

    Premise of the study: Demand for fresh-market sweet basil continues to increase, but in 2009 a new pathogen emerged, threatening commercial field/greenhouse production and leading to high crop losses. This study describes a simple and effective staining method for rapid microscopic detection of basil downy mildew (Peronospora belbahrii) from leaves of basil (Ocimum basilicum). Methods and Results: Fresh leaf sections infected with P. belbahrii were placed on a microscope slide, cleared with Visikol, and stained with iodine solution followed by one drop of 70% sulfuric acid. Cell walls of the pathogen were stained with a distinct coloration, providing a high-contrast image between the pathogen and plant. Conclusions: This new staining method can be used successfully to identify downy mildew in basil, which then can significantly reduce its spread if identified early, coupled with mitigation strategies. This technique can facilitate the control of the disease, without expensive and specialized equipment. PMID:25202569

  1. Diversity in chemical composition and yield of essential oil from two Iranian landraces of sweet basil

    OpenAIRE

    Ghasemi Pirbalouti Abdollah

    2014-01-01

    Ocimum basilicum L. belongs to the family Lamiaceae is an herb that is extensively cultivated in some countries. Areal parts, especially leaves of sweet basil are widely used to enhance the flavour of foods such as salads, pasta, tomato products, vegetables, pizza, meat, soups, marine foods, confectioneries and other products. Essential oil yield and chemical components of two Iranian landraces of sweet basil including Purple and Green grown south-centr...

  2. Essential oil composition from twelve varieties of basil (Ocimum spp) grown in Colombia

    OpenAIRE

    Via Amparo; Murillo Elizabeth

    2003-01-01

    Essential oil compositions of aerial parts from twelve basil cultivars (Ocimum spp) were analysed by gas chromatography-mass spectrometry (GC-MS). Ten of them were characterized by the presence of a high percentage of methyl cinnamate (35-80%), which defined the chemotype for these varieties. Only one presented the caryophyllene chemotype and another, the linalool chemotype. Three of the basils, "purple ruffles", "little virgin" and "purple virgin" exhibited the methyl cinnamate > linalool su...

  3. Potential of Basil (Ocimum basilicum L.) as bioactive ingredient and natural preserver

    OpenAIRE

    Carocho, Mrcio; Barros, Lillian; Calhelha, Ricardo C.; ?iri?, Ana; Sokovi?, Marina; Santos-Buelga, Celestino; Morales, Patricia; Ferreira, Isabel C. F. R.

    2015-01-01

    Basil (Ocimum basilicum L.) is a much appreciated plant, both for culinary purposes and for health treatments. It is used in many dishes and is also known for its properties as an appetite stimulant, carminative, and diuretic. It is also used as a mouth wash to cure inflammations. These bioactive properties could be correlated with its phenolic fraction. In this work the polyphenols present in both the infusion and decoction of basil, detected through HPLC-DAD-ESI/MS, are repor...

  4. Recto-vaginal/urethral fistula: Repair with gracilis muscle transposition

    Directory of Open Access Journals (Sweden)

    Goldman Gideon

    2006-01-01

    Full Text Available This study was designed to assess the efficacy of gracilis muscle transposition in repairing rectovaginal and rectourethral fistula. All patients had fecal diversion as a preliminary or concurrent step to fistula repair. Success was defined as healed fistula after stoma closure. Results: Six females and four males underwent gracilis muscle transposition from 1999 to 2006. Gracilis muscle transposition is a viable option for repairing fistulas between the urethra, vagina and the rectum, especially after failed perineal or trans-anal repair. It is associated with low morbidity and good success rate. Underlying Crohns disease and previous radiation are associated with poor prognosis.

  5. Transpositionally active episomal hAT elements

    Directory of Open Access Journals (Sweden)

    Hice Robert H

    2009-12-01

    Full Text Available Abstract Background hAT elements and V(DJ recombination may have evolved from a common ancestral transposable element system. Extrachromosomal, circular forms of transposable elements (referred to here as episomal forms have been reported yet their biological significance remains unknown. V(DJ signal joints, which resemble episomal transposable elements, have been considered non-recombinogenic products of V(DJ recombination and a safe way to dispose of excised chromosomal sequences. V(DJ signal joints can, however, participate in recombination reactions and the purpose of this study was to determine if hobo and Hermes episomal elements are also recombinogenic. Results Up to 50% of hobo/Hermes episomes contained two intact, inverted-terminal repeats and 86% of these contained from 1-1000 bp of intercalary DNA. Episomal hobo/Hermes elements were recovered from Musca domestica (a natural host of Hermes, Drosophila melanogaster (a natural host of hobo and transgenic Drosophila melanogaster and Aedes aegypti (with autonomous Hermes elements. Episomal Hermes elements were recovered from unfertilized eggs of M. domestica and D. melanogaster demonstrating their potential for extrachromosomal, maternal transmission. Reintegration of episomal Hermes elements was observed in vitro and in vivo and the presence of Hermes episomes resulted in lower rates of canonical Hermes transposition in vivo. Conclusion Episomal hobo/Hermes elements are common products of element excision and can be maternally transmitted. Episomal forms of Hermes are capable of integration and also of influencing the transposition of canonical elements suggesting biological roles for these extrachromosomal elements in element transmission and regulation.

  6. Matrix-derived combination effect and risk assessment for estragole from basil-containing plant food supplements (PFS)

    OpenAIRE

    van den Berg, Suzanne J. P. L.; Klaus, Verena; Alhusainy, Wasma; Rietjens, Ivonne M. C. M.

    2013-01-01

    Basil-containing plant food supplements (PFS) can contain estragole which can be metabolised into a genotoxic and carcinogenic 1'-sulfoxymetabolite. This study describes the inhibition of sulfotransferase (SULT)-mediated bioactivation of estragole by compounds present in basil-containing PFS. Results reveal that PFS consisting of powdered basil material contain other compounds with considerable in vitro SULT-inhibiting activity, whereas the presence of such compounds in PFS consisting of basi...

  7. Universal platform for quantitative analysis of DNA transposition

    Directory of Open Access Journals (Sweden)

    Pajunen Maria I

    2010-11-01

    Full Text Available Abstract Background Completed genome projects have revealed an astonishing diversity of transposable genetic elements, implying the existence of novel element families yet to be discovered from diverse life forms. Concurrently, several better understood transposon systems have been exploited as efficient tools in molecular biology and genomics applications. Characterization of new mobile elements and improvement of the existing transposition technology platforms warrant easy-to-use assays for the quantitative analysis of DNA transposition. Results Here we developed a universal in vivo platform for the analysis of transposition frequency with class II mobile elements, i.e., DNA transposons. For each particular transposon system, cloning of the transposon ends and the cognate transposase gene, in three consecutive steps, generates a multifunctional plasmid, which drives inducible expression of the transposase gene and includes a mobilisable lacZ-containing reporter transposon. The assay scores transposition events as blue microcolonies, papillae, growing within otherwise whitish Escherichia coli colonies on indicator plates. We developed the assay using phage Mu transposition as a test model and validated the platform using various MuA transposase mutants. For further validation and to illustrate universality, we introduced IS903 transposition system components into the assay. The developed assay is adjustable to a desired level of initial transposition via the control of a plasmid-borne E. coli arabinose promoter. In practice, the transposition frequency is modulated by varying the concentration of arabinose or glucose in the growth medium. We show that variable levels of transpositional activity can be analysed, thus enabling straightforward screens for hyper- or hypoactive transposase mutants, regardless of the original wild-type activity level. Conclusions The established universal papillation assay platform should be widely applicable to a variety of mobile elements. It can be used for mechanistic studies to dissect transposition and provides a means to screen or scrutinise transposase mutants and genes encoding host factors. In succession, improved versions of transposition systems should yield better tools for molecular biology and offer versatile genome modification vehicles for many types of studies, including gene therapy and stem cell research.

  8. Basil Buntings Aesthetic Function: Art vs. Intellect

    Directory of Open Access Journals (Sweden)

    Raheleh S. Aaraaby

    2012-04-01

    Full Text Available

    Basil Bunting is most commonly thought of as 1930s and 1940s poet grouped with some other poets such as Louis Zukofsky and Lorine Niedecker under the label Objectivist . The present researchers seek to achieve two goals in this paper. The fi rst goal is to argue that Bunting pushes the aesthetic function to the very brink of sense but holds it there, oscillating on the cusp of referential meaning, thus creating a contested, liminal space where sound and sense content for the constructive axis of meaning-construction. The second goal is to construct an oppositional relationship between art and intellect and conclude that if the best poetry aspires to a state of pure music, that aspiration moves it even further away from the intellect1. Reference will also be made to opponents who put sight and visuality over and above everything else in mans effort to acquire knowledge of this world in general.

    Key words: Bunting; Aesthetics; Form; Art; Intellect; Music

    Rsum Basil Bunting est le plus souvent considrs comme des annes 1930 et 1940 de regroups les potes avec quelques autres potes tels que Louis Zukofsky et Lorine Niedecker sous le label objectiviste. Les chercheurs comtenporains cherchent atteindre deux objectifs dans le prsent document. Le premier objectif est de faire valoir que le Bunting pousse la fonction esthtique au bord mme du sens, mais y maintient, oscillant sur le point de sens rfrentiel, crant ainsi un litigieuse, espace liminal o le son et le contenu de sens pour laxe constructif de sens-la construction. Le deuxime objectif est de construire une relation dopposition entre lart et de lintellect et de conclure que si la meilleure posie aspire un tat de la musique pure, que laspiration se dplace encore plus loin de lintellect. Rfrence sera galement des adversaires qui ont mis la vue et la visualit audel de tout le reste de leffort de lhomme dacqurir des connaissances de ce monde en gnral.

    Mots cls: Forme Bunting; Lesthtique; Lart; Lintelligence; De la musique

  9. The response of sweet basil (Ocimum basilicum L. to the application of growth stimulators and forecrops

    Directory of Open Access Journals (Sweden)

    Cezary A. Kwiatkowski

    2012-12-01

    Full Text Available A field experiment in growing sweet basil was carried out in the period 2008-2010 in Fajs?awice (Lublin region, on podzolic soil. The study evaluated the biometric traits of the plants, yield, the qualitative parameters of herbal raw material and weed infestation of the crop in dependence on growth simulators (Asahi SL, Bio-algeen, Titanit and the forecrop (winter wheat or spring barley + white mustard cover crop. Plots without foliar application of the growth stimulators were the control treatment. Tillage, mineral NPK fertilization as well as mechanical and chemical weed control were typical for this plant species and consistent with the recommendations for herbal plant protection. A hypothesis was made that the application of growth stimulators would have a positive effect on basil productivity, raw material quality and weed infestation of the basil crop. It was also assumed that the phytosanitary and fertilizing effects of the cover crop would result in higher and qualitatively better yield compared to the cereal forecrop alone (winter wheat. The best quantitative parameters of sweet basil raw material and the highest reduction in air-dry weight of weeds in the crop were observed after the application of the growth stimulators. The forecrop - spring barley + a white mustard cover crop that is ploughed in - also had a beneficial effect on yield and weed infestation of the plant in question. The traditional crop protection method used in the basil crop, without the application of the growth stimulators, resulted in a lower plant height and a smaller number of shoots per plant. This caused higher weed infestation of the crop and a decrease in yield. The positive side of the non-application of growth stimulators was a better chemical composition of basil raw material. Asahi SL and Tytanit yielded the best growth and productivity of the basil plants.

  10. Starch accumulation during hydroponic growth of spinach and basil plants under carbon dioxide enrichment

    Energy Technology Data Exchange (ETDEWEB)

    Holbrook, G.P.; Hansen, J.; Wallick, K.; Zinnen, T.M. (North Illinois University, de Kalb, IL (USA). Dept. of Biological Sciences)

    1993-04-01

    The effects of CO[sub 2] enrichment, photoperiod duration, and inorganic phosphate levels on growth and starch accumulaton by spinach and basil plants were studied in a commercial hydroponic facility. During a 3-week growth period, both species exhibited increased whole-plant fresh weight as a result of an increase in atmospheric CO[sub 2] concentration from 400 to 1500 mul/1. However, basil leaves exhibited a 1.5- to 2-fold greater increase in specific leaf weight (SLW), and accumulated starch to much greater levels than did leaves of spinach. At 1500 mul CO[sub 2]/1, starch accounted for up to 38% of SLW with basil compared to [lt] 10% of SLW with spinach. The maximum ratio of starch/chlorophyll was 55.0 in basil leaves vs 8.0 in spinach leaves. High ratio values were associated with the appearance of chlorotic symptoms in leaves of basil grown under CO[sub 2] enrichment, whereas spinach did not exhibit chlorosis. Increasing inorganic phosphate concentrations from 0.7 to 1.8 mM in the hydroponic medium did not appreciably affect leaf starch accumulation in either species. Starch accumulation in basil leaves was not consistently related to the duration of the photoperiod. However, photoperiod-induced changes in leaf starch levels were much greater in basil than spinach. The results clearly indicate that different horticultural crops can show diverse responses to CO[sub 2] enrichment, and thus highlight the need to develop individual growth strategies to optimize production quality of each species.

  11. Acquired Jugular Vein Aneurysm

    OpenAIRE

    Erkki Hopsu; Jussi Tarkkanen; Vento, Seija I.; Anne Pitkranta

    2009-01-01

    Venous malformations of the jugular veins are rare findings. Aneurysms and phlebectasias are the lesions most often reported. We report on an adult patient with an abruptly appearing large tumorous mass on the left side of the neck identified as a jugular vein aneurysm. Upon clinical examination with ultrasound, a lateral neck cyst was primarily suspected. Surgery revealed a saccular aneurysm in intimate connection with the internal jugular vein. Histology showed an organized hematoma inside ...

  12. Minimally invasive vein surgery.

    Science.gov (United States)

    Elias, Steven M; Frasier, Krista L

    2004-01-01

    Advances in minimally invasive vein surgery (MIVS) techniques made during the last decade have decreased operative morbidity, the number and size of incisions, operative time and recovery time. The following MIVS techniques will be discussed: 1. Transilluminated Powered Phlebectomy (TIPP) TriVex. 2. Radiofrequency Ablation Greater Saphenous Vein (RFGSV) Closure. 3.Laser Ablation Greater Saphenous Vein (EVLT). 4. Subfascial Endoscopic Perforator Surgery (SEPS). 5. Percutaneous Vein Valve Bioprosthesis (PVVB) The techniques used in MIVS allow surgeons to manage venous pathophysiology associated with all three venous systems of the lower extremities. The results are comparable to those obtained with open procedures. PMID:14770249

  13. The hyperbolic geometry of random transpositions

    CERN Document Server

    Berestycki, N

    2004-01-01

    Make the set of permutations of $n$ objects into a graph $G_n$ by connecting two permutations that differ by one transposition, and let $\\sigma_t$ be the continuous time simple random walk on this graph. In a previous paper, Berestycki and Durrett (2004) showed that the limiting behavior of the distance from the identity at time $cn/2$ has a phase transition at $c=1$. When $c1$ it is $u(c)n$ with $u(c) < c/2$. Here we investigate some consequences of this result for the geometry of $G_n$. Our first result is that when we consider the sphere of radius $an$ centered at the origin, and pick two points independently according to the hitting distribution, then Gromov hyperbolicity breaks down at critical radius $a=1/4$. When $a<1/4$ the space is hyperbolic but also displays behavior that is much different from manifolds of negative curvature - it is shown that there are many geodesics that may travel much different paths to get to a point. We also show that the hitting distribution of the sphere of radius $a...

  14. Cerebral and Sinus Vein Thrombosis

    Science.gov (United States)

    ... Introduction A blood clot in the veins that drain the blood from the brain is called a sinus or cerebral vein thrombosis. ... Normally, blood is transported through arteries into the brain, where it delivers ... cerebral veins) that drain into large veins, called sinus veins ( Figure 1 ). ...

  15. Bilateral meandering pulmonary veins

    Energy Technology Data Exchange (ETDEWEB)

    Thupili, Chakradhar R.; Udayasankar, Unni [Pediatric Imaging, Imaging Institute Cleveland Clinic, Cleveland, OH (United States); Renapurkar, Rahul [Imaging Institute Cleveland Clinic, Thoracic Imaging, L10, Cleveland, OH (United States)

    2015-06-15

    Meandering pulmonary veins is a rare clinical entity that can be mistaken for more complex congenital syndromes such as hypogenetic lung syndrome. We report imaging findings in a rare incidentally detected case of bilateral meandering pulmonary veins. We briefly discuss the role of imaging in diagnosing this condition, with particular emphasis on contrast-enhanced CT. (orig.)

  16. Varicose Veins (Varicosities)

    Science.gov (United States)

    ... veins (varicosities) are twisted, enlarged veins at the skin surface. The word comes from the Latin word varix, ... If you have any signs of infection or skin breakdown, antibiotics or special ... will be done to evaluate blood flow (circulation) in your leg. An ultrasound ...

  17. First Cultivation Trials of Lemon Basil (Ocimum basilicum var. citriodorum in Turkey

    Directory of Open Access Journals (Sweden)

    Sezen Tansi

    2000-01-01

    Full Text Available Lemon basil is grown as a culinary herb, used fresh and dried in floral arrangements, and potpourris. In this research we studied essential oil component and herb and oil yields of commercial lemon basil grown in Mediterranean region of Turkey. Lemon basil were cultivated under ukurova conditions in Turkey, and could be harvested 3 times at the full-flowering. In our conditions, harvest number increased four providing that earlier sowing is performed. Total fresh leaf yield and total dried leaf yield were 2760 kg/da and 571.52 kg/da, respectively. Essential oil components in leaves and flowers were analyzed by GC. The maximum essential oil yield (0.71 % was obtained at the I. harvest time from the dried flowers. Main component of essential oil was citral. The maximum citral (neral+geraniol content (89.28 % was determined at the II. harvest time

  18. How Are Varicose Veins Treated?

    Science.gov (United States)

    ... of the vein, causing it to close off. Laser Surgery This procedure applies light energy from a laser ... The laser light makes the vein fade away. Laser surgery mostly is used to treat smaller varicose veins. ...

  19. Effects of different substrates on basil seedlings quality (Ocimum basilicum L.

    Directory of Open Access Journals (Sweden)

    Jela?i? Slavica

    2005-01-01

    Full Text Available In this study five different substrates were used, such as: compost; mixture of compost, Lumbrikus H and garden soil; mixture of compost and Lumbrikus H; mixture of compost, Lumbrikus H and peat Galicina and Seedling Klassman substrate. Basil seedling was produced in containers according to "speeding" system. The studies have shown that the best quality of basil seedling of varieties Genovese and Lattuga is achieved when the mixture of substrates Compost, Lumbrikus H and Galicina peat are applied in the volume proportion of 50% : 30% : 20%.

  20. A Coupling Argument for the Random Transposition Walk

    CERN Document Server

    Bormashenko, Olena

    2011-01-01

    This paper explores the mixing time of the random transposition walk on the symmetric group. While it has long been known that this walk mixes in order n*log(n) time, this result has not previously been attained using coupling. A coupling argument showing the correct order mixing time is presented. This is accomplished by first projecting to conjugacy classes, and then using the Bubley-Dyer path coupling construction. In order to obtain appropriate bounds on the time it takes the path coupling to meet, ideas from Schramm's paper "Compositions of Random Transpositions" are used.

  1. Surgery for transposition of great arteries: A historical perspective

    Directory of Open Access Journals (Sweden)

    Supreet P Marathe

    2015-01-01

    Full Text Available The history of surgery for transposition of great arteries (TGA has paralleled the history of cardiac surgery. In fact, it began before the birth of open heart surgery when the palliative Blalock-Hanlon septectomy was first performed in 1948. The atrial switch, which was an attempt to correct the physiology of transposition, had significant shortcomings. The arterial switch sought to address them. This has emerged as an anatomically as well as physiologically appropriate solution. Today we continue to pursue technical refinements as well as try to expand the indications of the arterial switch. This review traces the various milestones in this perpetual journey.

  2. What Are Varicose Veins?

    Science.gov (United States)

    ... Kids' Medical Dictionary En Espaol What Other Kids Are Reading Girls and Puberty Boys and Puberty Video: ... System How the Body Works Main Page What Are Varicose Veins? KidsHealth > Kids > Health Problems of Grown- ...

  3. What Are Varicose Veins?

    Science.gov (United States)

    ... The arteries carry the blood from your heart out to your body, and the veins carry the blood from your body back to your heart. The blood going out to your body in the arteries is full of oxygen, which ...

  4. Chicoric Acid Levels in Commercial Basil (Ocimum basilicum) and Echinacea purpurea Products

    Science.gov (United States)

    Recently, we reported fresh basil (Ocimum basilicum) leaves contain chicoric acid, which is the principal phenolic compound in Echinacea purpurea and purportedly an active ingredient in dietary supplements derived from E. purpurea. Here we present the results from a study evaluating chicoric acid co...

  5. First report of Alfalfa mosaic virus infecting basil (Ocimum basilicum L.) in California.

    Science.gov (United States)

    Basil (Ocimum basilicum L.) plants collected from a field in Imperial County, CA in May, 2011 were found to exhibit yellowing, chlorotic sectors and spots on leaves, resulting in plants being unmarketable. Total nucleic acid was extracted from plants and tested by RT-PCR for the presence of Alfalfa...

  6. Authentication of organically and conventionally grown basils by gas chromatograpy/mass spectrometry chemical profiles

    Science.gov (United States)

    Basil plants cultivated by organic and conventional farming practices were differentiated using gas chromatography/mass spectrometry (GC/MS) and chemometric methods. The two-way GC/MS data sets were baseline-corrected and retention time-aligned prior to data processing. Two self-devised fuzzy clas...

  7. Diversity in chemical composition and yield of essential oil from two Iranian landraces of sweet basil

    Directory of Open Access Journals (Sweden)

    Ghasemi Pirbalouti Abdollah

    2014-01-01

    Full Text Available Ocimum basilicum L. belongs to the family Lamiaceae is an herb that is extensively cultivated in some countries. Areal parts, especially leaves of sweet basil are widely used to enhance the flavour of foods such as salads, pasta, tomato products, vegetables, pizza, meat, soups, marine foods, confectioneries and other products. Essential oil yield and chemical components of two Iranian landraces of sweet basil including Purple and Green grown south-central of Iran (Isfahan province were investigated. The hydro-distillated oils were analyzed by GC-MS. The oil yields were obtained from the aerial of Purple with 0.56 ml/100 g dry matter and the aerial of Green with 0.48 ml/100 g dry matter. Results indicated significant differences (p < 0.01 among the aerial for the main constituents in the essential oil from two Iranian landraces of sweet basil. The major constituents of the essential oil from the aerial of Purple landrace were methyl chavicol or estragol (63.32% and linalool (7.96%. The main compositions of the essential oil from the aerial of Green landrace were methyl chavicol (31.82%, geranial (24.60% and neral (22.65%. Genarlly, a comparison of our results with the previous reports suggests differences in the essential oil compositions and oil yield of the plant material could be attributed to genetic diversity in two Iranian landraces of sweet basil.

  8. Chemical control of downy mildew on lettuce and basil under greenhouse.

    Science.gov (United States)

    Gullino, M L; Gilardi, G; Garibaldi, A

    2009-01-01

    Eight experimental trials were carried out during 2007 and 2008 to evaluate the efficacy of different fungicides against downy mildew of lettuce (Bremia lactucae) and basil (Peronospora belbahrii) under greenhouse conditions, at temperatures ranging from 19 to 24 degrees C. The mixture fluopicolide (fungicide belonging to the + propamocarb hydrochloride (fungicide belonging to the new chemical class of acyl-picolides) was compared with metalaxyl m + copper, zoxamide + mancozeb, iprovalicarb + Cu, fenamidone + fosetyl-Al and azoxystrobin. Two treatments were carried out at 8-12 day interval on lettuce and basil. The artificial inoculation of B. lactucae on lettuce (cv Cobham Green) and P. belbahrii. on basil (cv Genovese gigante) was carried out by using 1 x 10(5) CFU/ml 24 h after the first treatment. In the presence of a medium-high disease severity, all fungicides tested in these trials were effective against downy mildew on lettuce and basil as the other fungicides already available. The importance of the availability of a number of different chemicals to control downy mildews is discussed. PMID:20222581

  9. Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil.

    Science.gov (United States)

    Cohen, Yigal; Rubin, Avia E

    2015-01-01

    The biotrophic oomycete Peronospora belbahrii causes a devastating downy mildew disease in sweet basil. Due to the lack of resistant cultivars current control measures rely heavily on fungicides. However, resistance to fungicides and strict regulation on their deployment greatly restrict their use. Here we report on a 'green' method to control this disease. Growth chamber studies showed that P. belbahrii could hardly withstand exposure to high temperatures; exposure of spores, infected leaves, or infected plants to 35-45 C for 6-9 hours suppressed its survival. Therefore, daytime solar heating was employed in the field to control the downy mildew disease it causes in basil. Covering growth houses of sweet basil already infected with downy mildew with transparent infra-red-impermeable, transparent polyethylene sheets raised the daily maximal temperature during sunny hours by 11-22 C reaching 40-58 C (greenhouse effect). Such coverage, applied for a few hours during 1-3 consecutive days, had a detrimental effect on the survival of P. belbahrii: killing the pathogen and/or suppressing disease progress while enhancing growth of the host basil plants. PMID:25992649

  10. Comparison of microbial diversity of edible flowers and basil grown with organic versus conventional methods.

    Science.gov (United States)

    Wetzel, Kaedra; Lee, Jiyoung; Lee, Chang Soo; Binkley, Margaret

    2010-11-01

    The consumption and use of edible flowers as food is growing; however, no study has been conducted to evaluate their role in the cause of food-borne illness or in food safety. Recent food-borne outbreaks traced to fresh herbs have raised concern about their processing and handling. Basil, one of the most commonly used fresh herbs, has been identified as a source of food-borne illness. Baseline assessments of microflora were performed, and the microbial diversity between growing methods (organic vs. conventional) was compared. DNA sequencing was used to identify the microbial flora present on fresh edible flower and basil samples. The most predominant species identified were Enterobacter hormaechei (10%), Acinetobacter calcoaceticus (10%), Enterobacter ludwigii (10%), Enterobacter asburiae (6%), and Enterobacter cowanii (6%). Pseudomonas aeruginosa (6%), Salmonella enterica (6%), and Bacillus amyloliquefaciens (2%) were also isolated. Phylogenetic analysis showed that most species of isolated bacteria belonged to the phyla Gammaproteobacteria (81.2%) and Firmicutes (18.8%). Statistical analysis, diversity index for species richness, and lineage-per-time plots showed that for basil, organically grown samples had a higher microbial diversity than conventionally grown samples. Edible flowers and basil are often grown using organic methods and are commonly consumed raw without any washing or cooking, to preserve aesthetic value, but these practices may pose a potential risk for food-borne illness. The baseline assessment, together with phylogenetic and statistical analyses, indicated possible microbial contamination in edible flowers and basil. The use of statistical estimation of molecular diversity based on the 16S rRNA sequences and lineage-per-time plots with phylogenetic analysis well served as a means for comparing microbial diversity in food samples between the growing methods (organic vs. conventional). PMID:21076485

  11. Microbiological Status and Food Safety Compliance of Commercial Basil Production Systems.

    Science.gov (United States)

    de Bruin, Willeke; Otto, Denise; Korsten, Lise

    2016-01-01

    Basil has been implicated in a number of microbe-associated foodborne illnesses across the world, and the source of contamination has often been traced back to the production and/or processing stages of the supply chain. The aim of this study was to evaluate the microbiological quality of fresh basil from the point of production to the retail outlet in the Gauteng and Northwest Provinces of South Africa. A total of 463 samples were collected over a 3-month period from two large-scale commercial herb producing and processing companies and three retail outlets. The microbiological quality of the samples was assessed based on the presence or absence of Escherichia coli O157:H7 and Salmonella Typhimurium and the levels of the indicator bacteria E. coli and total coliforms. Salmonella Typhimurium was detected on four basil samples (0.9%) arriving at the processing facility and at dispatch, but no E. coli O157:H7 was detected throughout the study. Total coliform counts were 0.4 to 4.1 CFU/g for basil, 1.9 to 3.4 log CFU/ml for water, and 0.2 to 1.7 log CFU/cm(2) for contact surfaces, whereas E. coli was detected in the water samples and only once on basil. The Colilert-18 and membrane filter methods were used to analyze water samples, and a comparison of results revealed that the Colilert-18 method was more sensitive. Strong evidence suggests that high numbers of coliforms do not necessarily indicate the presence of Salmonella Typhimurium. The study results highlight the importance of effective implementation of food safety management systems in the fresh produce industry. PMID:26735028

  12. Protective effect of basil (Ocimum basilicum L.) against oxidative DNA damage and mutagenesis.

    Science.gov (United States)

    Beri?, Tanja; Nikoli?, Biljana; Stanojevi?, Jasna; Vukovi?-Gaci?, Branka; Knezevi?-Vukcevi?, Jelena

    2008-02-01

    Mutagenic and antimutagenic properties of essential oil (EO) of basil and its major constituent Linalool, reported to possess antioxidative properties, were examined in microbial tests. In Salmonella/microsome and Escherichia. coli WP2 reversion assays both derivatives (0.25-2.0 microl/plate) showed no mutagenic effect. Salmonella. typhimurium TA98, TA100 and TA102 strains displayed similar sensitivity to both basil derivatives as non-permeable E. coli WP2 strains IC185 and IC202 oxyR. Moreover, the toxicity of basil derivatives to WP2 strains did not depend on OxyR function. The reduction of t-BOOH-induced mutagenesis by EO and Linalool (30-60%) was obtained in repair proficient strains of the E. coli K12 assay (Nikoli?, B., Stanojevi?, J., Miti?, D., Vukovi?-Gaci?, B., Knezevi?-Vukcevi?, J., Simi?, D., 2004. Comparative study of the antimutagenic potential of vitamin E in different E. coli strains. Mutat. Res. 564, 31-38), as well as in E. coli WP2 IC202 strain. EO and Linalool reduced spontaneous mutagenesis in mismatch repair deficient E. coli K12 strains (27-44%). In all tests, antimutagenic effect of basil derivatives was comparable with that obtained with model antioxidant vitamin E. Linalool and vitamin E induced DNA strand breaks in Comet assay on S. cerevisiae 3A cells, but at non-genotoxic concentrations (0.075 and 0.025 microg/ml, respectively) they reduced the number of H(2)O(2)-induced comets (45-70% Linalool and 80-93% vitamin E). Obtained results indicate that antigenotoxic potential of basil derivatives could be attributed to their antioxidative properties. PMID:17980946

  13. Seed Germination and Early Growth Responses of Hyssop, Sweet Basil and Oregano to Temperature Levels

    Directory of Open Access Journals (Sweden)

    Sajad MIJANI

    2013-12-01

    Full Text Available The objectives of this survey were to determine the effect of temperature on germination and seedling growth of Hyssop (Hyssopus officinalis L., Sweet basil (Ocimum basilicum L. and Oregano (Origanum vulgare L. (Lamiaceae family as well as comparing species regarding germination behavior and growth characteristics. Seeds were germinated on a temperature-gradient bar varying between 5 and 40 C (with 5 C intervals. Results indicated that the highest germination percentage of hyssop (92-98%, sweet basil (86-90% and oregano (74-77% occurred at 20-30 C, 25-30 C and 20-30 C, respectively; therefore, moderate and warm temperatures are proper for germination of all species. In all species the maximum germination rate obtained at 30 C. Among all species, Day 10 % of Sweet basil Germination had the lowest value, which indicates faster germination. The cardinal temperatures (base, optimum and ceiling or maximum were estimated by the segmented model. Base temperature (Tb was calculated for hyssop, sweet basil and oregano as 3.42, 5.70 and 5.46 C, respectively. Optimal temperature (To calculated for all species was approximately 30C, So warmer temperatures are much more proper for them. The species showed different maximum temperatures (Tm from 42.91 (Oregano to 48.05 C (Hyssop. In Hyssop and Sweet basil optimum growth of seedlings were observed at 30C while Oregano reached its best growth at 25C. The difference between maximum and minimum temperatures of germination knowing as temperature range (TR index could show adaptation capability to broad sites for planting and domestication. Regarding this index Hyssop stood in the first place.

  14. Efficient Sleeping Beauty DNA Transposition From DNA Minicircles

    Science.gov (United States)

    Sharma, Nynne; Cai, Yujia; Bak, Rasmus O; Jakobsen, Martin R; Schrder, Lisbeth Dahl; Mikkelsen, Jacob Giehm

    2013-01-01

    DNA transposon-based vectors have emerged as new potential delivery tools in therapeutic gene transfer. Such vectors are now showing promise in hematopoietic stem cells and primary human T cells, and clinical trials with transposon-engineered cells are on the way. However, the use of plasmid DNA as a carrier of the vector raises safety concerns due to the undesirable administration of bacterial sequences. To optimize vectors based on the Sleeping Beauty (SB) DNA transposon for clinical use, we examine here SB transposition from DNA minicircles (MCs) devoid of the bacterial plasmid backbone. Potent DNA transposition, directed by the hyperactive SB100X transposase, is demonstrated from MC donors, and the stable transfection rate is significantly enhanced by expressing the SB100X transposase from MCs. The stable transfection rate is inversely related to the size of circular donor, suggesting that a MC-based SB transposition system benefits primarily from an increased cellular uptake and/or enhanced expression which can be observed with DNA MCs. DNA transposon and transposase MCs are easily produced, are favorable in size, do not carry irrelevant DNA, and are robust substrates for DNA transposition. In accordance, DNA MCs should become a standard source of DNA transposons not only in therapeutic settings but also in the daily use of the SB system. PMID:23443502

  15. Efficient sleeping beauty DNA transposition from DNA minicircles

    DEFF Research Database (Denmark)

    Sharma, Nynne; Cai, Yujia; Bak, Rasmus O; Jakobsen, Martin Roelsgaard; Schrder, Lisbeth Dahl; Mikkelsen, Jacob Giehm

    2013-01-01

    a carrier of the vector raises safety concerns due to the undesirable administration of bacterial sequences. To optimize vectors based on the Sleeping Beauty (SB) DNA transposon for clinical use, we examine here SB transposition from DNA minicircles (MCs) devoid of the bacterial plasmid backbone...

  16. Efficient sleeping beauty DNA transposition from DNA minicircles

    DEFF Research Database (Denmark)

    Sharma, Nynne; Cai, Yujia

    2013-01-01

    DNA transposon-based vectors have emerged as new potential delivery tools in therapeutic gene transfer. Such vectors are now showing promise in hematopoietic stem cells and primary human T cells, and clinical trials with transposon-engineered cells are on the way. However, the use of plasmid DNA as a carrier of the vector raises safety concerns due to the undesirable administration of bacterial sequences. To optimize vectors based on the Sleeping Beauty (SB) DNA transposon for clinical use, we examine here SB transposition from DNA minicircles (MCs) devoid of the bacterial plasmid backbone. Potent DNA transposition, directed by the hyperactive SB100X transposase, is demonstrated from MC donors, and the stable transfection rate is significantly enhanced by expressing the SB100X transposase from MCs. The stable transfection rate is inversely related to the size of circular donor, suggesting that a MC-based SB transposition system benefits primarily from an increased cellular uptake and/or enhanced expression which can be observed with DNA MCs. DNA transposon and transposase MCs are easily produced, are favorable in size, do not carry irrelevant DNA, and are robust substrates for DNA transposition. In accordance, DNA MCs should become a standard source of DNA transposons not only in therapeutic settings but also in the daily use of the SB system.Molecular Therapy - Nucleic Acids (2013) 2, e74; doi:10.1038/mtna.2013.1; published online 26 February 2013.

  17. Relational Learning in a Context of Transposition: A Review

    Science.gov (United States)

    Lazareva, Olga F.

    2012-01-01

    In a typical transposition task, an animal is presented with a single pair of stimuli (for example, S3+S4-, where plus and minus denote reward and nonreward and digits denote stimulus location on a sensory dimension such as size). Subsequently, an animal is presented with a testing pair that contains a previously reinforced or nonreinforced

  18. Congenitally corrected transposition of great vessels: MRI and echocardiographic appearance

    International Nuclear Information System (INIS)

    This paper presents the case of a 36-year-old male with congenitally corrected transposition of great vessels (CTGV). This is a rare cardiac anomaly characterized by atrioventricular and ventriculoarterial discordance, occurring in less than 1 % of all congenital heart diseases. This was diagnosed by echocardiography and MRI. The MRI findings demonstrated cardiac abnormality. (orig.). With 7 figs., 1 tab

  19. Complete penoscrotal transposition: case report and review of the literature.

    Science.gov (United States)

    Sexton, Philippa; Thomas, Joseph T; Petersen, Scott; Brown, Nicole; Arms, Jane E; Bryan, Jenny; Harraway, James; Gardener, Glenn

    2015-01-01

    Penoscrotal transposition is a rare congenital abnormality. We report a case presenting prenatally with ambiguous genitalia and renal anomaly on obstetric ultrasound and fetal MRI and discuss the postnatal examination and autopsy findings. We present a review of the literature, including associated gene abnormalities. PMID:25115217

  20. Tagliatelle technique for arteriovenous fistula creation using a great saphenous vein semipanel graft.

    Science.gov (United States)

    Alomran, Faris; Boura, Benoit; Mallios, Alexandros; De Blic, Romain; Costanzo, Alessandro; Combes, Myriam

    2013-12-01

    Lower limb arteriovenous (AV) access creation can be attempted in patients where upper limb options are exhausted. Utilization of the great saphenous vein as a conduit for AV access has been limited due to its small diameter and resistance to dilatation. Lower limb AV fistulas today are mostly either prosthetic grafts with high rates of infection and thrombosis or transposition of the femoral vein that can lead to limb-threatening venous hypertension. In this report, we describe an optimized technique for reconstruction of the great saphenous vein to serve as a dialysis conduit. This semipanel graft reconstruction effectively doubles the diameter of the conduit without disruption of the deep venous circulation and also mitigates the requirement for a venovenous anastomosis. PMID:23973450

  1. Fusion of reverse-oriented Ds termini following abortive transposition in Arabidopsis: implications for the mechanism of Ac/Ds transposition.

    Science.gov (United States)

    Krishnaswamy, Lakshminarasimhan; Zhang, Jianbo; Peterson, Thomas

    2010-04-01

    We studied the products of alternative transposition reactions that utilize reverse-oriented Ds termini as substrates. In this configuration, Ds transposition can generate genome rearrangements including deletions, inversions, and reciprocal translocations. In approximately half of the transposition products recovered in Arabidopsis, the termini of the reversed ends Ds element were ligated together. The sequences at these fused-end junctions suggest that the excised transposon termini form covalently closed hairpin structures. These results shed new light on the mechanism of Ac/Ds transposition. PMID:20179935

  2. Pelvic Vein Embolisation in the Management of Varicose Veins

    International Nuclear Information System (INIS)

    Pelvic vein incompetence is common in patients with atypical varicose veins, contributing to their recurrence after surgery. Therefore, refluxing pelvic veins should be identified and treated. We present our experience with pelvic vein embolisation in patients presenting with varicose veins. Patients presenting with varicose veins with a duplex-proven contribution from perivulval veins undergo transvaginal duplex sonography (TVUS) to identify refluxing pelvic veins. Those with positive scans undergo embolisation before surgical treatment of their lower limb varicose veins. A total of 218 women (mean age of 46.3 years) were treated. Parity was documented in the first 60 patients, of whom 47 (78.3%) were multiparous, 11 (18.3%) had had one previous pregnancy, and 2 (3.3%) were nulliparous. The left ovarian vein was embolised in 78%, the right internal iliac in 64.7%, the left internal iliac in 56.4%, and the right ovarian vein in 42.2% of patients. At follow-up TVUS, mild reflux only was seen in 16, marked persistent reflux in 6, and new reflux in 3 patients. These 9 women underwent successful repeat embolisation. Two patients experienced pulmonary embolisation of the coils, of whom 1 was asymptomatic and 1 was successfully retrieved; 1 patient had a misplaced coil protruding into the common femoral vein; and 1 patient had perineal thrombophlebitis. The results of our study showed that pelvic venous embolisation by way of a transjugular approach is a safe and effective technique in the treatment of pelvic vein reflux.

  3. Spontaneous Iliac Vein Rupture

    OpenAIRE

    Kim, Dae Hwan; Park, Hyung Sub; Lee, Taeseung

    2015-01-01

    Spontaneous iliac vein rupture (SIVR) is a rare entity, which usually occurs without a precipitating factor, but can be a life-threatening emergency often requiring an emergency operation. This is a case report of SIVR in a 62-year-old female who presented to the emergency room with left leg swelling. Workup with contrast-enhanced computed tomography revealed a left leg deep vein thrombosis with May-Thurner syndrome and a hematoma in the pelvic cavity without definite evidence of arterial ble...

  4. Characterization of the Bacterial Community Naturally Present on Commercially Grown Basil Leaves: Evaluation of Sample Preparation Prior to Culture-Independent Techniques.

    Science.gov (United States)

    Ceuppens, Siele; Delbeke, Stefanie; De Coninck, Dieter; Boussemaere, Jolien; Boon, Nico; Uyttendaele, Mieke

    2015-08-01

    Fresh herbs such as basil constitute an important food commodity worldwide. Basil provides considerable culinary and health benefits, but has also been implicated in foodborne illnesses. The naturally occurring bacterial community on basil leaves is currently unknown, so the epiphytic bacterial community was investigated using the culture-independent techniques denaturing gradient gel electrophoresis (DGGE) and next-generation sequencing (NGS). Sample preparation had a major influence on the results from DGGE and NGS: Novosphingobium was the dominant genus for three different basil batches obtained by maceration of basil leaves, while washing of the leaves yielded lower numbers but more variable dominant bacterial genera including Klebsiella, Pantoea, Flavobacterium, Sphingobacterium and Pseudomonas. During storage of basil, bacterial growth and shifts in the bacterial community were observed with DGGE and NGS. Spoilage was not associated with specific bacterial groups and presumably caused by physiological tissue deterioration and visual defects, rather than by bacterial growth. PMID:26308033

  5. Characterization of the Bacterial Community Naturally Present on Commercially Grown Basil Leaves: Evaluation of Sample Preparation Prior to Culture-Independent Techniques

    Directory of Open Access Journals (Sweden)

    Siele Ceuppens

    2015-08-01

    Full Text Available Fresh herbs such as basil constitute an important food commodity worldwide. Basil provides considerable culinary and health benefits, but has also been implicated in foodborne illnesses. The naturally occurring bacterial community on basil leaves is currently unknown, so the epiphytic bacterial community was investigated using the culture-independent techniques denaturing gradient gel electrophoresis (DGGE and next-generation sequencing (NGS. Sample preparation had a major influence on the results from DGGE and NGS: Novosphingobium was the dominant genus for three different basil batches obtained by maceration of basil leaves, while washing of the leaves yielded lower numbers but more variable dominant bacterial genera including Klebsiella, Pantoea, Flavobacterium, Sphingobacterium and Pseudomonas. During storage of basil, bacterial growth and shifts in the bacterial community were observed with DGGE and NGS. Spoilage was not associated with specific bacterial groups and presumably caused by physiological tissue deterioration and visual defects, rather than by bacterial growth.

  6. The vein collar

    DEFF Research Database (Denmark)

    Lundgren, F; Schroeder, Torben Veith

    2012-01-01

    Randomized studies evaluating the effect of a vein collar at the distal anastomosis of PTFE-grafts show conflicting results. The study of the Joint Vascular Research Group (JVRG) of UK found improved primary patency while the Scandinavian Miller Collar Study (SCAMICOS) found neither any effect on...

  7. Uranium veins in Portugal

    International Nuclear Information System (INIS)

    Vein-type uranium deposits in Portugal demonstrate a broad temporal and physical spectrum from intragranitic hydrothermal jasper-type veins formed at moderately high temperatures, through lower temperature quartz veins and peribatholithic disseminated mineralization of 'Iberian-type', to undoubted supergene enrichments in surface-related planar traps such as weathered basic dikes. All appear to be in close spatial relationship to 'fertile' Hercynian granites in which uraninite of low thorium content is the main contributor to the enriched uranium levels. The availability of this large source of labile uranium, a pervasive fracture network and a series of tectonic and intrusive events which could generate hydrothermal circulation, allow several alternative genetic models for the mineralization. It now appears that the classic hydrothermal pitchblende veins within the granite are most likely of late-Hercynian age. Many of the mineralogical and depositional characteristics of the lower temperature 'Iberian-type' deposits suggest a temporal continuity to this mineralization but, as yet, no supporting age data are available. It is conceded, therefore, that a considerable time-gap could occur between the two episodes, with the peribatholithic mineralization resulting from later rejuvenation of the hydrothermal convective system. (author)

  8. Deep Vein Thrombosis

    Centers for Disease Control (CDC) Podcasts

    2012-04-05

    This podcast discusses the risk for deep vein thrombosis in long-distance travelers and ways to minimize that risk.Created: 4/5/2012 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID). Date Released: 4/5/2012.

  9. Deep Vein Thrombosis

    Science.gov (United States)

    ... hormone therapy, including for postmenopausal symptoms Have a central venous catheter Your risk for DVT increases if you ... lose weight if you're overweight. High blood pressure, being a smoker and being overweight make you more likely to develop DVT. ... What is the likely cause of my deep vein thrombosis? What is the treatment for this blood ...

  10. Corrected transposition of great arteries; Skorygowane przelozenie wielkich pni tetniczych

    Energy Technology Data Exchange (ETDEWEB)

    Erecinski, J.; Aleszewicz-Baranowska, J.; Chojnicki, M.; Sabiniewicz, R. [Inst. Pediatrii, Akademia Medyczna, Gdansk (Poland)

    1995-12-31

    20 patients with the diagnosis of congenital corrected transposition of great arteries were analyzed. The diagnosis was based on routine clinical examination, echocardiography and in certain cases on heart catheterization and angiocardiography. In the most cases c-TGA coexists with additional heart defects. The commonest coexisting defects were: ventricular septal defect (60%), pulmonary stenosis (50%), atrio-ventricular valve regurgitation, predominantly systemic (tricuspid 45%). In the most cases 2D Doppler echo examination was sufficient for morphological assessment. In order to quality to cardiosurgical treatment heart catheterization and angiocardiography were necessary. 5 children were treated surgically. 3 of them underwent palliative procedures, one - Rastelli procedure and one had corrective surgery with bad result. Clinical picture of corrected transposition of great arteries is determined by coexisting additional heart defects. (author) 15 refs, 6 figs, 1 tab

  11. Didactic Transposition : From theoretical notion to research programme

    DEFF Research Database (Denmark)

    Achiam, Marianne

    The term didactic transposition refers to the deconstruction and reconstruction of science knowledge, values or practices in order to make them teachable. In this paper, I present the theoretical framework that has grown around this notion. I use examples from different levels of science education and different subjects to illustrate how science is transformed in any teaching undertaking, and how that transformation influences the way science is experienced and appropriated by learners. The chosen examples also illustrate the development of the notion of didactic transposition from a descriptive framework to the more normative construct of today (the Anthropological Theory of Didactics or ATD), where it converges with other comparable frameworks, e.g. the Model of Educational Reconstruction.

  12. Model prenatal program of Rush Medical College at St. Basil's Free Peoples Clinic, Chicago.

    OpenAIRE

    Bardack, M A; Thompson, S. H.

    1993-01-01

    The lack of adequate prenatal and gynecological care for indigent women has reached crisis proportions. The situation is aggravated by the diminishing supply of primary care physicians who are willing to practice obstetrics in community settings. Added to this condition is the rapidly declining number of medical students seeking careers in the primary care field. The Rush Prenatal Program at St. Basil's Free Peoples Clinic on Chicago's south side addresses these problems by (a) delivering com...

  13. Essential oil composition from twelve varieties of basil (Ocimum spp) grown in Colombia

    Scientific Electronic Library Online (English)

    Amparo, Via; Elizabeth, Murillo.

    2003-10-01

    Full Text Available Foi analizada a composio do leo esencial das partes areas de doze variedades de alfavaca (Ocimum spp). A anlise foi feita por cromatografa gasosa-espectrometria de massas (CG-EM) e encontrou-se que dez das amostras foram caracterizadas pela presena de uma alta porcentagem de cinamato de metil [...] a (35-80%), o qual define o qumiotipo destas variedades. Somente uma das variedades apresentou o qumiotipo cariofileno e mais uma o qumiotipo linalol. As variedades "crespa morada", "virgen pequea", e "virgen morada" apresentam o subtipo cinamato > linalol. A "blanca compacta" e a "crespa blanca" tm o subtipo cinamato de metila > linalol > 1,8-cineol. A "castilla morada" tm o subtipo cinamato de metila > metil eugenol. O subtipo linalol > cinamato de metila foi apresentado pela "verde de folhas grandes". Cariofileno > metil eugenol foi o subtipo da alfavaca "clavo". Cinamato de metila (constituindo mais do 62% do total do leo esencial) foi o qumiotipo para as outras variedades: "canela", "querendona morada", "dulce de castilla" e "zancona morada". Abstract in english Essential oil compositions of aerial parts from twelve basil cultivars (Ocimum spp) were analysed by gas chromatography-mass spectrometry (GC-MS). Ten of them were characterized by the presence of a high percentage of methyl cinnamate (35-80%), which defined the chemotype for these varieties. Only o [...] ne presented the caryophyllene chemotype and another, the linalool chemotype. Three of the basils, "purple ruffles", "little virgin" and "purple virgin" exhibited the methyl cinnamate > linalool subtype. "White compact" and "white ruffles" showed the methyl cinnamate > linalool > 1,8-cineole subtype. Methyl cinnamate > methyl eugenol was the subtype for "purple castle". The variety "large green leaves" exhibited the linalool > methyl cinnamate subtype. Caryophyllene > methyl eugenol subtype was determined for "clove basil". The rest of the basils "cinnamon", "purple lovingly", "sweet castle" and "purple long-legged", belonged to the methyl cinnamate chemotype in which methyl cinnamate constituted more than 62% of the total essential oil content.

  14. Seed Germination and Early Growth Responses of Hyssop, Sweet Basil and Oregano to Temperature Levels

    OpenAIRE

    Sajad MIJANI; Samieh ESKANDARI NASRABADI; Hadi ZARGHANI; Mohhamad GHIAS ABADI

    2013-01-01

    The objectives of this survey were to determine the effect of temperature on germination and seedling growth of Hyssop (Hyssopus officinalis L.), Sweet basil (Ocimum basilicum L.) and Oregano (Origanum vulgare L.) (Lamiaceae family) as well as comparing species regarding germination behavior and growth characteristics. Seeds were germinated on a temperature-gradient bar varying between 5 and 40 C (with 5 C intervals). Results indicated that the highest germination percentage of hyssop (92-9...

  15. SOME CONSIDERATIONS REGARDING THE IN VITRO BEHAVIOUR OF BASIL (OCIMUM BASILICUM L)

    OpenAIRE

    Daniela Elena Maftei; Gogu Gheorghita; Daniela Nicuta

    2006-01-01

    In vitro cultures of basil were initiated using shoot tips from plants grown in the laboratory. It was noticed that shoot tips and nodes’ inoculation on MS medium supplemented with cytokinins, auxins or with cytokinins combined with auxins induces caulogenesis and root generation, providing neoplantlets. Adding only 2,4-D or 2,4-D combined with a cytokinin to the nourishing medium, the main reaction of the explants (nodes, internodes, roots, leaves) was formation of compact, n...

  16. Chemical Analysis of Flaxseed, Sweet Basil, Dragon Head and Quince Seed Mucilages

    Directory of Open Access Journals (Sweden)

    2008-01-01

    Full Text Available Mucilage, a complex carbohydrate with a great capacity to absorb water, should be considered a potential source of industrial hydrocolloid.To examine moisture, dry weight, yield, ash and protein content, mucilaginous material were extracted from seeds by mixing the seeds with distilled water (1:20 w/v, stirring the seed-water mixtures for 3 h at 75�C, separating the mucilage extract from the seeds by filtration through a muslin and were precipitated with 3 times its volumes of 96% ethanol. The precipitates were separated by centrifugation (6500 rpm, 15 min. The data were analyzed by one-way ANOVA and Tukey test and compared in one significant levels of p< 0.05. The linseed mucilage had 4.57% moisture, 95.43% dry weight, 8.6% yield, 5.8% ash and 12.3% protein. The basil mucilage had 4.86% moisture, 95.14% dry weight, 2.07% yield, 0.84% ash and 10.9% protein. The dragon head mucilage had 4.93% moisture, 95.06% dry weight, 1.88% yield, 0.28% ash and 45.7% protein. The quince mucilage had 4.38% moisture, 95.62% dry weight, 10.9% yield, 8.24% ash and 20.9% protein. Results showed significant differences in yield mucilage content between flaxseed and quince with together and with basil and dragon head. Significant differences in ash content were observed between flaxseed and quince with basil and dragon head. The dragon head had significant difference in protein content with flaxseed, basil and quince.

  17. An intermediate in transposition of the conjugative transposon Tn916.

    OpenAIRE

    Scott, J R; Kirchman, P A; Caparon, M G

    1988-01-01

    Using the conjugative transposon Tn916, we have identified a closed covalent circular form produced in vivo that is able to serve as an intermediate in transposition. When a region of a streptococcal chromosome containing Tn916 is cloned in an Escherichia coli plasmid, supercoiled transposon molecules are excised spontaneously. The purified supercoiled forms transform Bacillus subtilis protoplasts by inserting into the chromosome, apparently at random. In B. subtilis, Tn916 retains its abilit...

  18. Transposition of an exothermic reaction to a continuous intensifies reactor

    OpenAIRE

    Benaissa, Wassila; Elgue, Sbastien; Gabas, Nadine; Carson, Douglas; Demissy, Michel

    2005-01-01

    The aim of this study is the transposition of an exothermic reaction carried out in a batch reactor to a continuous intensified one. The esterification of propionic anhydride with 2- butanol was selected as a case study. The decomposition reactions of the reactants and the products were studied by DSC whereas the heat of solution of the two reactants were determined by isothermal calorimetry. An extensive experimental programme was then carried out using the Mettler RC-1 reaction calorimeter ...

  19. Collateral veins in left renal vein stenosis demonstrated via CT.

    Science.gov (United States)

    Lien, H H; Lund, G; Talle, K

    1983-02-01

    Twelve patients with left renal vein stenosis from tumor compression were studied with CT. All had distended collateral veins in the perirenal space which either formed a radiating or a cobweb pattern or appeared as marked longitudinal veins. Inferior phrenic vein branches were seen in seven patients and were considerably enlarged in two. Other major veins possibly taking part in collateral circulation could not be recognized due to obliteration of fat planes. The renal fascia was thickened in eleven patients, probably due to edema. A close study of the perirenal space with CT may give valuable information about collateral development. PMID:6840101

  20. Collateral veins in left renal vein stenosis demonstrated via CT

    Energy Technology Data Exchange (ETDEWEB)

    Lien, H.H.; Lund, G.; Talle, K.

    1983-02-01

    Twelve patients with left renal vein stenosis from tumor compression were studied with CT. All had distended collateral veins in the perirenal space which either formed a radiating or a cobweb pattern or appeared as marked longitudinal veins. Inferior phrenic vein branches were seen in seven patients and were considerably enlarged in two. Other major veins possibly taking part in collateral circulation could not be recognized due to obliteration of fat planes. The renal fascia was thickened in eleven patients, probably due to edema. A close study of the perirenal space with CT may give valuable information about collateral development.

  1. Collateral veins in left renal vein stenosis demonstrated via CT

    International Nuclear Information System (INIS)

    Twelve patients with left renal vein stenosis from tumor compression were studied with CT. All had distended collateral veins in the perirenal space which either formed a radiating or a cobweb pattern or appeared as marked longitudinal veins. Inferior phrenic vein branches were seen in seven patients and were considerably enlarged in two. Other major veins possibly taking part in collateral circulation could not be recognized due to obliteration of fat planes. The renal fascia was thickened in eleven patients, probably due to edema. A close study of the perirenal space with CT may give valuable information about collateral development. (orig.)

  2. Different species of basil need different ammonium to nitrate ratio in hydroponics' system

    Directory of Open Access Journals (Sweden)

    M. SAADATIAN

    2015-12-01

    Full Text Available Basil is a very important medicinal plant and culinary spice, and is marketed fresh, dried or frozen. In crop nutrition, nitrogen is essential for plant growth and as a macro-element, is part of the proteins structure and participates in the metabolic processes involved in the synthesis and energy transfer. It has been shown that a balance between ammonium and nitrate favors plant growth and that the degree of benefit varies among crops. This study was conducted to evaluate the growth of two varieties of basil in function of four nutrient solutions containing different NH4+/NO3- ratios. Results showed that different variety response differently to nutrient solution. Although the highest yield in both varieties (sweet and purple was obtained when fed by nutrient solution without ammonium but their response on quality indices were different due to nitrate ammonium ratio in nutrient solutions. The highest total phenol content of sweet and purple basil was 92 and 100 mg gallic acid equivalent per gram of dry weight respectively, while the highest antioxidant capacity was obtained in purple variety grown in nutrient solution 2(NH4+:1/NO3:4 and the lowest value were related to sweet variety with the same nutrient solution. Moderate content of total nitrogen can be suitable for sweet variety while for purple variety nutrient solution with low amount of ammonium can be more suitable.

  3. Surgical effects of nasal transposition of inferior rectus muscle - 135 cases of acquired superior oblique palsy.

    Science.gov (United States)

    Okamoto, Mana; Kimura, Akiko; Masuda, Akiko; Mimura, Osamu

    2015-01-01

    Nasal transposition of the inferior rectus (IR) muscle, which is transposed nasally with the insertion parallel to the spiral of Tillaux, could correct excyclotropia. However, as far as we are aware, there have been no reports examining the surgical effects of this procedure in multiple cases. Therefore, we examined the surgical effects of IR nasal transposition in 135 cases with acquired trochlear nerve palsy at Hyogo College of Medicine Hospital, Nishinomiya, Japan. One muscle width of IR nasal transposition corrected an average 5.6 in excyclotorsion, while bilateral IR nasal transposition corrected average 10.9. This result shows this procedure is accurate quantitatively. Moreover, IR nasal transposition in combination with IR recession or resection can correct vertical deviation and excyclotorsion simultaneously. The results of this study suggest that IR nasal transposition should become first-line treatment for acquired superior oblique palsy. PMID:25945030

  4. Neuroanatomical correlates of musical transposition in adolescents: A longitudinal approach

    Directory of Open Access Journals (Sweden)

    Mary Elizabeth Sutherland

    2013-12-01

    Full Text Available Musicians are trained in melodic transposition, the skill of extracting the pitch interval structure and moving it into different keys. This ability to recognize whether a melody is the same or altered when it is played back in a different key is correlated with both greater neural activation and cortical thickness in bilateral intraparietal sulcus (IPS. Musical training only explains part of this finding, suggesting that the ability to transpose a melody may have innate predispositions. The current study was designed to address this question: Are the anatomical correlates of musical transposition already present in non-musician children at age 14.5? If so, is there any evidence that those traits were already in place at earlier ages? To answer this question, we recruited 47 adolescents (age 14.5 years from a longitudinal study and tested them on a melodic transposition task. These adolescents had already undergone anatomical MRI imaging at the ages of 10, 11.5, 13, and 14.5 years. They were tested on the transposition task at age 14.5. During this visit, we found a relationship between cortical thickness in left IPS and performance on the transposed melody task in the girls and not the boys; no such relationship was observed at any of the earlier ages. Girls reach more advanced staged of pubertal maturation earlier than boys, it is possible that the relationship between cortical thickness in IPS and skill at melodic transposition only emerges once the brain has reached a certain degree of maturity. This claim is supported by a lack of similar sex differences in the adults: the degree of correlation between cortical thickness and performance on the same transposed melody task did not differ between men and women in a previous study. Thus, our results suggest that the relationship between cortical thickness and the ability to transpose a melody is not fixed, and that the effects observed in adults are neither due exclusively to training nor to predisposition.

  5. RNA-mediated transposition of the tobacco retrotransposon Tnt1 in Arabidopsis thaliana.

    OpenAIRE

    H Lucas; Feuerbach, F; Kunert, K; Grandbastien, M.A.; Caboche, M.

    1995-01-01

    The tobacco (Nicotiana tabacum) retrotransposon Tnt1 was introduced into Arabidopsis thaliana. In this heterologous host plant species, Tnt1 undergoes an RNA-mediated transposition and creates a 5 bp duplication at the insertion sites. This is the first report of transposition of a retrotransposon after introduction into a heterologous host species. Tnt1 transposed during in vitro regeneration of transformed A.thaliana, but no transposition event was detected as happening in T2 and T3 generat...

  6. Regulation of DNA transposition by CpG methylation and chromatin structure in human cells

    OpenAIRE

    Jursch, T.; Miskey, C.; Izsvak, Z.; Ivics, Z.

    2013-01-01

    BACKGROUND: The activity of transposable elements can be regulated by different means. DNA CpG methylation is known to decrease or inhibit transpositional activity of diverse transposons. However, very surprisingly, it was previously shown that CpG methylation of the Sleeping Beauty (SB) transposon significantly enhanced transposition in mouse embryonic stem cells. RESULTS: In order to investigate the unexpected response of SB transposition to CpG methylation, related transposons from the Tc1...

  7. Considerations and concerting on the european directive transposition to the internal gas market

    International Nuclear Information System (INIS)

    In the framework of the directive 98/30/CE transposition on the the gas internal market, a report has been asked by the First Ministry to define the new form of the gas utilities. The directive deals with the competition opening. The first part presents the gas market organization in France, today and after the transposition. The second part analyses the big stakes of this transposition. (A.L.B)

  8. Toxicity of basil oil constituents and related compounds and the efficacy of spray formulations to Dermatophagoides farinae (Acari: Pyroglyphidae).

    Science.gov (United States)

    Perumalsamy, Haribalan; Kim, Jae Yeon; Kim, Jun-Ran; Hwang, Kum Na Ra; Ahn, Young-Joon

    2014-05-01

    Pyroglyphid house dust mites are the most common cause of allergic symptoms in humans. An assessment was made of the toxicity of basil, Ocimum basilicum L, essential oil, 11 basil oil constituents, seven structurally related compounds, and another 22 previously known basil oil constituents to adult American house dust mites, Dermatophagoides farinae Hughes. The efficacy of four experimental spray formulations containing basil oil (1, 2, 3, and 4% sprays) was also assessed. Results were compared with those of two conventional acaricides benzyl benzoate and N,N-diethyl-3-methylbenzamide. The active principles of basil oil were determined to be citral, alpha-terpineol, and linalool. Citral (24 h LC50, 1.13 microg/cm2) and menthol (1.69 microg/cm2) were the most toxic compounds, followed by methyl eugenol (5.78 microg/cm2). These compounds exhibited toxicity greater than benzyl benzoate (LC50, 8.41 microg/cm2) and N,N-diethyl-3-methylbenzamide (37.67 microg/cm2). Potent toxicity was also observed with eugenol, menthone, spathulenol, alpha-terpineol, nerolidol, zerumbone, and nerol (LC50, 12.52-21.44 microg/cm2). Interestingly, the sesquiterpenoid alpha-humulene, lacking only the carbonyl group present in zerumbone, was significantly less effective than zerumbone, indicating that the alpha,beta-unsaturated carbonyl group of zerumbone is a prerequisite component for toxicity. These compounds were consistently more toxic in closed versus open containers, indicating that their mode of delivery was largely a result of vapor action. Basil oil applied as 3 and 4% sprays provided 97 and 100% mortality against the mites, respectively, whereas permethrin (cis:trans, 25:75) 2.5 g/liter spray treatment resulted in 17% mortality. Our results indicate that practical dust mite control in indoor environments can be achieved by basil oil spray formulations (3 and 4% sprays) as potential contact-action fumigants. PMID:24897858

  9. Management of varicose veins.

    Science.gov (United States)

    Jones, Richard H; Carek, Peter J

    2008-12-01

    Varicose veins are twisted, dilated veins most commonly located on the lower extremities. Risk factors include chronic cough, constipation, family history of venous disease, female sex, obesity, older age, pregnancy, and prolonged standing. The exact pathophysiology is debated, but it involves a genetic predisposition, incompetent valves, weakened vascular walls, and increased intravenous pressure. A heavy, achy feeling; itching or burning; and worsening with prolonged standing are all symptoms of varicose veins. Potential complications include infection, leg ulcers, stasis changes, and thrombosis. Some conservative treatment options are avoidance of prolonged standing and straining, elevation of the affected leg, exercise, external compression, loosening of restrictive clothing, medical therapy, modification of cardiovascular risk factors, reduction of peripheral edema, and weight loss. More aggressive treatments include external laser treatment, injection sclerotherapy, endovenous interventions, and surgery. Comparative treatment outcome data are limited. There is little evidence to preferentially support any single treatment modality. Choice of therapy is affected by symptoms, patient preference, cost, potential for iatrogenic complications, available medical resources, insurance reimbursement, and physician training. PMID:19069022

  10. Median clouds and a fast transposition median solver

    OpenAIRE

    Eriksen, Niklas

    2009-01-01

    Le problème de la médiane est de trouver une permutation dont la distance totale à un ensemble donné de permutations (lensemble de base) est minimale. C'est un problème important en génomique comparative et il a été étudié pour certaines mesures de distance. La distance de transposition n'est pas directement liée à la biologie, mais il a été démontré que son comportement est similaire à celui des distances biologiques essentielles, et elle peut donc donner des indications su...

  11. Pregnancy after atrial repair for transposition of the great arteries

    OpenAIRE

    GENONI, M; Jenni, R; Hoerstrup, S; Vogt, P.; Turina, M.

    1999-01-01

    OBJECTIVETo investigate the risk of pregnancy in patients with transposition of the great arteries (TGA) who have undergone atrial repair.?DESIGNRetrospective analysis (1962-94) of 342TGA patients who underwent atrial repair. Of 231known late survivors, 48were women over 18years old who were interviewed about possible reproductive plans and previous pregnancies. As a control, comparison was made with data of 57500 women (mean age 26years) obtained from the Swiss Statistical Bank in Be...

  12. Relational Learning in a Context of Transposition: A Review

    OpenAIRE

    Lazareva, Olga F.

    2012-01-01

    In a typical transposition task, an animal is presented with a single pair of stimuli (for example, S3+ S4?, where plus and minus denote reward and nonreward and digits denote stimulus location on a sensory dimension such as size). Subsequently, an animal is presented with a testing pair that contains a previously reinforced or nonreinforced stimulus and a novel stimulus (for example, S2S3 and S4S5). Does the choice of a novel S2 instead of previously reinforced S3 in a testing pair S2S3 i...

  13. The genotoxic potential in vitro and in vivo of the allyl benzene etheric oils estragole, basil oil and trans-anethole.

    Science.gov (United States)

    Mller, L; Kasper, P; Mller-Tegethoff, K; Petr, T

    1994-12-01

    Estragole, trans-anethole and basil oil were tested for their ability to induce DNA repair in rat hepatocytes in vitro and in rat liver in an ex vivo test. There was a marked induction of UDS by estragole and basil oil in vitro (LOEC about 10(-5) mol/l). The basil oil we used contained about 88.2% estragole. It is evident from our results that the induction of UDS with basil oil could be directly related to its main constituent estragole. trans-Anethole was only slightly effective in the in vitro UDS test. The ex vivo UDS test led to clearly elevated DNA repair for estragole and basil oil in rats treated orally with doses up to 2 g/kg body weight. Estragole was not positive in a chromosomal aberration test with V79 cells either via direct treatment, with rat liver S9 mix or with rat hepatocytes as source of metabolism. PMID:7527904

  14. Induction of single transpositions of mobile genetic elements in Drosophila melanogaster using mitomycin C

    International Nuclear Information System (INIS)

    Injection of mitomycin C intra-abdominally into males of stable laboratory lines of Drosophila melanogaster causes the appearance of various mutational events at a number of loci of the X-chromosome in offspring. It is shown that they are the result of transpositions of mobile genetic elements. These events are single and are not the result of transposition bursts

  15. A Study of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L. Against Anopheles Mosquito Larvae

    Directory of Open Access Journals (Sweden)

    Azhari H. Nour

    2009-01-01

    Full Text Available Problem statement: Certain basil essential oils were claimed to have a larvicidal activity towards mosquito's larvae. To test this claim the essential oils of four accessions of basil grown in Sudan were selected and tested for Anopheles larvae. Malaria is the major health problem in the Sudan and the whole country is now considered endemic, with varying degrees, about 35,000 deaths every year due to malaria. Anopheles mosquito is the major vector of malaria disease in Sudan. Search for larvicidal active compound(s is one of several attempts to fine effective and affordable ways to control this mosquito. To determine the toxic effects of basil essential oils extracted by steam distillation against Anopheles larvae. Approach: For the larvicidal bioassay, three concentrations (100, 300, 500 ppm of essential oil solutions of four basil accessions were prepared; 1 mL of ethanol was used to solubilize the oil in water (999 mL. In each concentration of oil solution were inserted 20 larvae (third instars. A set of controls using 0.1% ethanol and untreated sets of larvae in (tap water, were also run for comparison. Data were evaluated through regression analysis, from the regression line; the LC50 values were read. The active ingredients were separated and/ or identified by TLC, IR and GC-MS. Results: Larvicidal activity of the essential oils is varied, lasted for about 9 h and thereafter decreased, LC50 values ranging from 190-300 ppm. Linalool, geraniol and eugenol are active components of basil essential oil against Anopheles larvae. Two accessions were caused 100% mortality at a concentration range 300-500 ppm for 3 h. Conclusion: These results indicated that basil essential oils have larvicidal activity towards Anopheles larvae. Therefore, could be affordable way to control this mosquito.

  16. Basil Buntings Objectivist Perspective in Poetry and Musical Association

    OpenAIRE

    Farid Parvaneh; Raaheleh Sadaat Araabi

    2011-01-01

    Basil Bunting, British poet, is one of the rare great modernists who have not been given their due or properly studied. An understanding of his work will help us understand modernism more appropriately. Reference will also be made to opponents who put sight and visuality over and above everything else in mans effort to acquire knowledge of this world in general. The researchers in this article seek to achieve two goals in this paper. The first or the main goal is to consider the Modern Engli...

  17. Basil Buntings Objectivist Perspective in Poetry and Musical Association

    Directory of Open Access Journals (Sweden)

    Farid Parvaneh

    2011-07-01

    Full Text Available Basil Bunting, British poet, is one of the rare great modernists who have not been given their due or properly studied. An understanding of his work will help us understand modernism more appropriately. Reference will also be made to opponents who put sight and visuality over and above everything else in mans effort to acquire knowledge of this world in general. The researchers in this article seek to achieve two goals in this paper. The first or the main goal is to consider the Modern English poet Basil Buntings Objectivist roots according to Mitchells paper in 2008. The second goal, which naturally emerges from the first one is to present sound play from Buntings own view and define them, regarding to Schotts contributions in 2003, in a part of his long poem, Briggflatts, which lead to the kind of Aural and visual dancing. Then we will conclude , as Bunting mentions more and more, poetry is only its sound.
    Key words: Bunting; Objectivism; Poetry; Sound; Visuality; Aurality

    Rsum: Basil Bunting, pote britannique, est l'un des rares grands modernistes qui n'ont pas reu leur d ou n'ont pas t bien tudis. Une bonne comprhension de son travail nous aidera comprendre le modernisme de faon plus approprie. Des rfrences seront galement faits pour des opposants qui ont mis la vue et la visualit au-del de tout le reste de l'effort de l'homme d'acqurir des connaissances de ce monde en gnral. Les chercheurs de cet article visent atteindre deux objectifs dans le prsent document. Le premier ou le principal but est d'examiner les racines objectivistes du pote moderne anglais Basil Bunting selon le document de Mitchell en 2008. Le deuxime objectif, qui dcoule naturellement du premire objectif est de prsenter diffuser un show sonore du point de vue personnel de Bunting et les dfinir, en se rfrenant aux contributions de Schott en 2003, dans une partie de son pome long, Briggflatts, qui conduit une sorte de bande sonore et de danse visuelle. Ensuite, nous allons conclure que, comme Bunting mentionne de plus en plus, la posie est seulement le son.
    Mots-cls: Bunting; Objectivisme; PoSie; Son; Visualit; Auriculaire

  18. A phase transition in the random transposition random walk

    CERN Document Server

    Berestycki, N; Berestycki, Nathanael; Durrett, Rick

    2004-01-01

    Our work is motivated by Bourque and Pevzner's (2002) simulation study of the effectiveness of the parsimony method in studying genome rearrangement, and leads to a surprising result about the random transposition walk on the group of permutations on $n$ elements. Consider this walk in continuous time starting at the identity and let $D_t$ be the minimum number of transpositions needed to go back to the identity from the location at time $t$. $D_t$ undergoes a phase transition: the distance $D_{cn/2} \\sim u(c)n$, where $u$ is an explicit function satisfying $u(c)=c/2$ for $c \\le 1$ and $u(c)1$. In other words, the distance to the identity is roughly linear during the subcritical phase, and after critical time $n/2$ it becomes sublinear. In addition, we describe the fluctuations of $D_{cn/2}$ about its mean in each of the three regimes (subcritical, critical and supercritical). The techniques used involve viewing the cycles in the random permutation as a coagulation-fragmentation process and relating the behav...

  19. Transposition of the Pterygopalatine Fossa during Endoscopic Endonasal Transpterygoid Approaches.

    Science.gov (United States)

    Pinheiro-Neto, Carlos D; Fernandez-Miranda, Juan C; Prevedello, Daniel M; Carrau, Ricardo L; Gardner, Paul A; Snyderman, Carl H

    2013-10-01

    Introduction Complete or partial removal of the pterygoid process provides lateral extension of the endonasal corridor necessary to approach the Meckel cave, infrapetrous skull base, and medial infratemporal fossa. This paper provides the anatomical foundations for the endoscopic endonasal transpterygoid approach with preservation of all neurovascular structures inside the pterygopalatine fossa. Methods Eight endoscopic transpterygoid approaches were performed in fresh cadaveric specimens. In all dissections the vidian nerve and the periosteal sac enclosing the pterygopalatine fossa were preserved. Results We reliably transposed the pterygopalatine fossa to approach the Meckel cave, infrapetrous skull base, and medial infratemporal region, preserving the neurovascular structures inside the pterygopalatine fossa in all specimens. Conclusions The transposition of the pterygopalatine fossa neurovascular structures for endoscopic endonasal approaches to the skull base is an alternative technique that is both feasible and desirable. The transposition requires no additional technical skills but requires comprehensive knowledge of its anatomy. The anatomical preservation of the neurovascular structures is potentially beneficial to the quality of life of patients. Clinical studies are necessary to prove the real benefits of this technique. PMID:24436922

  20. Leiomyosarcoma of the renal vein

    Directory of Open Access Journals (Sweden)

    Lemos Gustavo C.

    2003-01-01

    Full Text Available Leiomyosarcoma of the renal vein is a rare tumor of complex diagnosis. We presented a case of renal vein leiomyosarcoma detected in a routine study. The primary treatment was complete surgical removal of the mass. In cases where surgical removal is not possible the prognosis is poor, with high rates of local recurrence and distant spread.

  1. Vein type uranium deposits

    International Nuclear Information System (INIS)

    Veins are tabular- or sheet-like masses of minerals occupying or following a fracture or a set of fractures in the enclosing rock. They have been formed later than the country rock and fractures, either by filling of the open spaces or by partial or complete replacement of the adjoining rock or most commonly by both of these processes combined. This volume begins with the occurrences and deposits known from old shield areas and the sedimentary belts surrounding them. They are followed by papers describing the European deposits mostly of Variscan age, and by similar deposits known from China being of Jurassic age. The volume is completed by two papers which do not fit exactly in the given scheme. A separate abstract was prepared for each of the 25 papers in this report

  2. Superior masenteric vein thrombosis.

    Science.gov (United States)

    Ho, C K; Khoo, S T; Saw, M H

    2002-06-01

    A 43 year-old woman presented with severe non-specific abdominal pain of 1-week duration. She was on oral contraceptive pills for the past 6 years. Clinically patient appeared ill with no specific abnormal physical sign. Moderate amount of free fluid in the peritoneal cavity on ultrasound prompted an urgent abdominal computed tomography (CT) scan, which revealed thrombosis of the superior mesenteric vein. Further investigations revealed a hypercoagulable state with protein C deficiency. Patient responded well to anticoagulation and supportive therapy. One month later patient readmitted with vomiting and signs of intestinal obstruction. Barium study revealed a moderately long tight stricture at mid jejunum with proximal dilation. A by-pass surgery was carried out. She was well at 3 months follow-up. PMID:24326659

  3. Utilization of heavy metal-rich tannery sludge for sweet basil (Ocimum basilicum L.) cultivation.

    Science.gov (United States)

    Chand, Sukhmal; Singh, Shweta; Singh, Vinay Kumar; Patra, D D

    2015-05-01

    Unlike food crops, essential oil-bearing crops in which the oil is extracted through hydro-distillation can be a suitable crop to be grown in heavy metal-polluted soils as the oil does not carry any heavy metal. In a field experiment conducted at CIMAP, Lucknow, India during 2011 and 2012, influence of six doses of tannery sludge viz 0, 10, 20, 30, 40, and 50 t ha(-1) were tested, taking sweet basil (Ocimum basilicum) as the test crop. Maximum herb yield was obtained with the application of sludge at 20 t ha(-1). While in root, accumulation of Cd and Pb increased significantly up to 20 t ha(-1), Cr accumulation increased with increasing the dose of tannery sludge reaching maximum at 50 t ha(-1). Essential oil yield of basil (Ocimum basilicum) was significantly affected due to sludge application. Quality of essential oil, in term of chemical constituents, however, was marginally influenced due to tannery sludge application. PMID:25850748

  4. The Potential of Use Basil and Rosemary Essential Oils as Effective Antibacterial Agents

    Directory of Open Access Journals (Sweden)

    Edward Kowalczyk

    2013-08-01

    Full Text Available The considerable therapeutical problems of persistent infections caused by multidrug-resistant bacterial strains constitute a continuing need to find effective antimicrobial agents. The aim of this study was to demonstrate the activities of basil (Ocimum basilicum L. and rosemary (Rosmarinus officinalis L. essential oils against multidrug- resistant clinical strains of Escherichia coli. A detailed analysis was performed of the resistance of the drug to the strains and their sensitivity to the tested oils. The antibacterial activity of the oils was tested against standard strain Escherichia coli ATCC 25922 as well as 60 other clinical strains of Escherichia coli. The clinical strains were obtained from patients with infections of the respiratory tract, abdominal cavity, urinary tract, skin and from hospital equipment. The inhibition of microbial growth by both essential oils, presented as MIC values, were determined by agar dilution. Susceptibility testing to antibiotics was carried out using disc diffusion. The results showed that both tested essential oils are active against all of the clinical strains from Escherichia coli including extended-spectrum ?-lactamase positive bacteria, but basil oil possesses a higher ability to inhibit growth. These studies may hasten the application of essential oils in the treatment and prevention of emergent resistant strains in nosocomial infections.

  5. Potential Activity of Basil Plants as a Source of Antioxidants and Anticancer Agents as Affected by Organic and Bio-organic Fertilization

    Directory of Open Access Journals (Sweden)

    Hanan Anwar Aly TAIE

    2010-06-01

    Full Text Available Sweet basil (Ocimum basilicum is a popular culinary herbal crop grown for fresh or dry leaf, essential oil and seed markets. Recently, basil was shown to rank highest among species and herbal crops for phenolic compounds, essential oils which are associated with decreasing risks of cancer and aging diseases. The current study aimed to evaluate the potential activity of phenolic, flavonoids and essential oil of basil as antioxidant and anticancer activities by application organic and bio-organic fertilization. A pot experiment was conducted. Basil seeds were grown, with three levels of organic fertilizers (compost in presence or absence of biofertilizer. Growth parameters, pigments content, total phenolics, total flavonoids and antioxidant activity of methanolic plant extract were examined. Application of 50% compost and 50% sand in the presence of biofertilizer resulted in enhancement fresh and dry weights, total phenolics, total flavonoids and pigment content as compared with compost alone. The constituents of essential oils extracted by hydrodistilation of basil leaves were identified by GLC. Eleven components of essential oils were identified. The highest value of antioxidant and anticancer activities were obtained in basil plants grown in 50% and 75% compost treatments in the presence of biofertilizer. These results emphasized the important of bioorganic fertilizers for enhancement the antioxidant activity of phenolics, flavonoids, and essential oils of basil plant extract.

  6. The effects of the avilamycin, Protexin and basil essential oil supplements on ileal bacteria of broiler chickens

    Directory of Open Access Journals (Sweden)

    Seyyed Reza Riyazi

    2015-03-01

    Full Text Available The effects of probiotic (Protexin, Protexin Veterinary, Somerset, UK, medicinal plant (basil essential oil and an antibiotic growth promoter (avilamycin as broiler feed additives on ileal bacteria of broilers were studied. A total of 600 Arian broilers were divided into 6 treatments, with 4 replicates of 25 birds. Treatments were a plant essential oil in 3 level (200, 400 and 600 ppm, the probiotic (150 ppm, an antibiotic (150 ppm and a control group with no additives. Birds in different treatments received the same diets during the experimental period. The results showed that probiotic treatment significantly decreased total bacteria counts (P<0.05. Any of the supplements did not affect colony-forming units of lactobacilli (P>0.05. The lowest and highest lactic acid bacteria in ileum were obtained by the control group and in birds receiving 400 ppm basil essential oil, respectively. Moreover, addition of 600 ppm of basil essential oil into diet decreased the number of E.coli colonies as compared to other treatments (P<0.05. Our results suggest that basil essential oil and Protexin could be of value to replace the antibiotics that have been banned as growth promoter in animal feeds.

  7. Effects of antibiotic growth promoter, probiotic and basil essential oil supplementation on the intestinal microflora of broiler chickens

    Directory of Open Access Journals (Sweden)

    SEYYED REZA RIYAZI

    2015-08-01

    Full Text Available Effects of the probiotic ‘Protexin', basil essential oil and the antibiotic growth promoter ‘Avilamycin' were studied on the ileum microbial flora of broilers when these substances are used as broiler feed additives. A total of six hundred Arian broilers were divided into 6 treatment groups, with 4 replicates of 25 birds. Treatments have been performed with a plant essential oil at 3 levels (200, 400 and 600 ppm, the probiotic ‘Protexin' (150 ppm, the antibiotic ‘Avilamycin' (150 ppm and a control group with no additives. Birds in different treatments received the same diets during the experimental period. The results showed that the probiotic treatment significantly decreased the total bacteria counts (P0.05. The lowest and highest lactic acid bacteria in ileum were obtained in the control group and in birds receiving 400 ppm basil essential oil, respectively. Moreover, addition of 600 ppm of basil essential oil into diet decreased the number of E. coli colonies as compared to other treatments (P< 0.05. It could be speculated that the basil essential oil and ‘Protexin' could replace the antibiotics, which have been banned to use as growth promoter in animal feeds.

  8. [Corrected transposition of the great arteries in patients over 65].

    Science.gov (United States)

    Attie, F; Rijlaarsdam, M; Zabal, C; Buenda, A; Vargas-Barrn, J

    1995-01-01

    Three cases with corrected transposition of the great arteries in patients older than 65 years are described. Two had atrial situs solitus and one atrial situs inversus. One had pulmonary valvular stenosis with valvular calcification and a small ventricular septal defect in association with ischemic heart disease. This patient died due to cardiac failure at the age of 80 years. The second case was associated with ventricular septal defect, atrial septal defect and pulmonary hypertension. The third patient presented with mild tricuspid regurgitation. Although this congenital heart malformation is theoretically compatible with normal life, few patients have long survival because of associated congenital defects or the subsequent development of tricuspid regurgitation or atrioventricular block. PMID:7639597

  9. Transposition of the gas directive in French law

    International Nuclear Information System (INIS)

    On September 25, 2002, the French government adopted the project of law relative to the energy markets. This project of law takes up the essential part of the measures proposed by the directive no 98/30/CE of the European Union from June 22, 1998, about the 'common rules of the internal natural gas market'. This paper makes a brief comment of the version of this project adopted by the senate. It presents also the position of the French gas association (AFG) about this transposition, its action during the first phase of the parliamentary debate, and what will be AFG's role after the enforcement of this law. Finally, a testimony of the Swiss society of gas and waters industry (SSIGE) about the opening of the natural gas market is given in conclusion. (J.S.)

  10. An epistemological perspective on the didactical transposition of Gaia theory

    Directory of Open Access Journals (Sweden)

    Marina de Lima-Tavares

    2001-09-01

    Full Text Available This paper is part of larger scope project in which the scientificity of the Gaia theory is analysed, intending to contribute towards a critical appraisal or the role that such a theory might have in biology teaching and in approaching the "environment" transversal theme. The Gaia theory proposes that the biosphere acts as na adaptative control system, keeping the earth in homeostasis. Some authors have proposed that this theory should be incorporated in the school curriculum. In Brazil, it already appears in some biology textbooks. The scientificity of this theory is questioned in this paper, given that its didactical transposition should be suported by a previous demonstration of its scientific nature.

  11. Inactivation of a transgene due to transposition of insertion sequence (IS136) of Agrobacterium tumefaciens

    Indian Academy of Sciences (India)

    Preeti Rawat; Sanjeev Kumar; Deepak Pental; Pradeep Kumar Burma

    2009-06-01

    Agrobacterium strains harbour insertion sequences, which are known to transpose into genomes as well as into Ti plasmids. In this study we report the inactivation of a transgene due to transposition of the A. tumefaciens insertion sequence IS136. The transposition was discovered following transformation of plant tissues, although the fidelity of the binary vector was confirmed following transformation into Agrobacterium. Such transpositions are rare but can occur and it is thus important to check the fidelity of the binary vector at different times of Agrobacterium growth in order to avoid failure in achieving transgene expression.

  12. The DNA-bending protein HMGB1 is a cellular cofactor of Sleeping Beauty transposition

    OpenAIRE

    Zayed, H; Izsvak, Z.; Khare, D.; Heinemann, U; Ivics, Z.

    2003-01-01

    Sleeping Beauty (SB) is the most active Tc1/ mariner-type transposon in vertebrates. SB contains two transposase-binding sites (DRs) at the end of each terminal inverted repeat (IR), a feature termed the IR/DR structure. We investigated the involvement of cellular proteins in the regulation of SB transposition. Here, we establish that the DNA-bending, high-mobility group protein, HMGB1 is a host-encoded cofactor of SB transposition. Transposition was severely reduced in mouse cells deficient ...

  13. Data transposition and helical scheme in prestack finite-difference migration

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Y. [Veritas DGC Inc., Houston, TX (United States); Liang, J. [Veritas DGC Inc., Calgary, AB (Canada); Zhang, G. [Chinese Academy of Sciences, Beijing (China)

    2003-07-01

    New wave equations are constantly being developed to respond to the increased demand for imaging complex geologic structures. In this study, the authors analyze the efficiency of prestack finite-difference migration with particular focus on data transposition in the two-way splitting algorithm. They presented a tiled data transposition algorithm which achieves good efficiency through greater access coherence. A helical scheme which eliminates the need for data transposition in common-shot migration was also presented. This newly developed algorithm speeds up downward extrapolation by 30 to 40 per cent and produces an image quality that is comparable to non-helical methods. 13 refs., 1 tab., 5 figs.

  14. Increased Ac excision (iae): Arabidopsis thaliana mutations affecting Ac transposition

    International Nuclear Information System (INIS)

    The maize transposable element Ac is highly active in the heterologous hosts tobacco and tomato, but shows very much reduced levels of activity in Arabidopsis. A mutagenesis experiment was undertaken with the aim of identifying Arabidopsis host factors responsible for the observed low levels of Ac activity. Seed from a line carrying a single copy of the Ac element inserted into the streptomycin phosphotransferase (SPT) reporter fusion, and which displayed typically low levels of Ac activity, were mutagenized using gamma rays. Nineteen mutants displaying high levels of somatic Ac activity, as judged by their highly variegated phenotypes, were isolated after screening the M2 generation on streptomycin-containing medium. The mutations fall into two complementation groups, iae1 and iae2, are unlinked to the SPT::Ac locus and segregate in a Mendelian fashion. The iae1 mutation is recessive and the iae2 mutation is semi-dominant. The iae1 and iae2 mutants show 550- and 70-fold increases, respectively, in the average number of Ac excision sectors per cotyledon. The IAE1 locus maps to chromosome 2, whereas the SPT::Ac reporter maps to chromosome 3. A molecular study of Ac activity in the iae1 mutant confirmed the very high levels of Ac excision predicted using the phenotypic assay, but revealed only low levels of Ac re-insertion. Analyses of germinal transposition in the iae1 mutant demonstrated an average germinal excision frequency of 3% and a frequency of independent Ac re-insertions following germinal excision of 22%. The iae mutants represents a possible means of improving the efficiency of Ac/Ds transposon tagging systems in Arabidopsis, and will enable the dissection of host involvement in Ac transposition and the mechanisms employed for controlling transposable element activity

  15. Varicose Vein Treatment (Endovenous Ablation of Varicose Veins)

    Science.gov (United States)

    ... surgery. Most of the veins treated are effectively invisible even to ultrasound 12 months after the procedure. ... understanding of the possible charges you will incur. Web page review process: This Web page is reviewed ...

  16. Retinal Vein Occlusion.

    Science.gov (United States)

    Sawada, Osamu; Ohji, Masahito

    2016-01-01

    The primary treatment against macular edema with retinal vein occlusion (RVO) has changed from observation in central RVO (CRVO) and laser photocoagulation in branch RVO (BRVO) to administration of intravitreal agents based on anti-vascular endothelial growth factor (VEGF) or anti-inflammatory strategies. Anti-VEGF treatment such as ranibizumab, bevacizumab, or aflibercept improved vision by 13.9-16.2 letters (best-corrected visual acuity) after 12 months versus baseline in patients with macular edema secondary to CRVO. A long-term study showed that reduced follow-up and fewer retreatments resulted in worsening visual acuity. Intravitreal therapy with anti-inflammatory agents stabilized visual acuity in CRVO. However, increased intraocular pressure and cataract progression were frequently observed. Anti-VEGF agents such as ranibizumab or bevacizumab improved visual acuity by 15.5-18.3 letters in patients with macular edema secondary to BRVO after 12 months. The improved vision remained during the long-term follow-up. There was no significant difference between standard care and intravitreal triamcinolone groups in BRVO, and increased intraocular pressure and cataract progression occurred frequently in the triamcinolone group. Anti-VEGF intravitreal administration resulted in good vision in CRVO and BRVO patients and is employed as a primary therapy. Anti-VEGF therapy requires frequent observations and intravitreal injections to maintain good vision. PMID:26501219

  17. Comportamento fenotpico e genotpico de populaes de manjerico Phenotypic and genotypic behavior of basil populations

    Directory of Open Access Journals (Sweden)

    Arie F Blank

    2010-09-01

    Full Text Available Gentipos de manjerico (Ocimum basilicum L. apresentam diferentes teores, rendimentos e composies qumicas de leos essenciais. Fatores influenciam na produo do leo essencial de manjerico, como a cultivar plantada e o mtodo de cultivo. O estudo dos parmetros genticos tem sido ferramenta til na identificao de gentipos superiores. Este trabalho teve o objetivo de estimar alguns parmetros genticos associados ao comportamento produtivo de seis populaes de manjerico nos anos agrcola 2004/05 e 2005/06. As caractersticas massa seca de folha + inflorescncia e rendimento de leo essencial apresentaram grande variabilidade por forte influncia dos anos estudados. J o teor de linalol manteve sua produtividade estvel ao longo dos dois anos. Teor e rendimento de leo essencial e teor de linalol no leo essencial apresentaram herdabilidades altas na anlise conjunta, indicando controle gentico e grande possibilidade de serem transmitidas para as geraes futuras. Na anlise conjunta as populaes PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 e PI 197442-S3-bulk 8 apresentaram os maiores teores e rendimentos de leo essencial. Quanto ao constituinte qumico majoritrio do leo essencial, o linalol, todas as populaes apresentaram teores semelhantes, diferindo apenas na presena de alguns constituintes qumicos minoritrios.Basil (Ocimum basilicum L. genotypes present different contents, yields and chemical constituents in its essential oils. Factors influence the essential oil production of basil, such as cultivar and cultivation method. The study of genetic parameters is a useful tool to identify superior genotypes. In this work we estimated some genetic parameters associated to the production behavior of six basil populations cultivated in 2004/05 and 2005/06. The variables dry weight of leaves + inflorescences and essential oil yield presented high variability because of strong influence of the studied years. Linalool content presented constant values during the two years. Essential oil content and yield and linalool content in the essential oil presented high herdability in the combined analyses, indicating genetic control and great possibilities to transmit them to the following generations. The combined analyses showed highest essential oil content and yield for the populations PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 and PI 197442-S3-bulk 8. For the major chemical constituent of the essential oil, linalool, all the populations presented similar content. Only the minor chemical constituents were different.

  18. Comportamento fenotpico e genotpico de populaes de manjerico / Phenotypic and genotypic behavior of basil populations

    Scientific Electronic Library Online (English)

    Arie F, Blank; Evanildes M de, Souza; Jos WA de, Paula; Pricles B, Alves.

    2010-09-01

    Full Text Available Gentipos de manjerico (Ocimum basilicum L.) apresentam diferentes teores, rendimentos e composies qumicas de leos essenciais. Fatores influenciam na produo do leo essencial de manjerico, como a cultivar plantada e o mtodo de cultivo. O estudo dos parmetros genticos tem sido ferramenta [...] til na identificao de gentipos superiores. Este trabalho teve o objetivo de estimar alguns parmetros genticos associados ao comportamento produtivo de seis populaes de manjerico nos anos agrcola 2004/05 e 2005/06. As caractersticas massa seca de folha + inflorescncia e rendimento de leo essencial apresentaram grande variabilidade por forte influncia dos anos estudados. J o teor de linalol manteve sua produtividade estvel ao longo dos dois anos. Teor e rendimento de leo essencial e teor de linalol no leo essencial apresentaram herdabilidades altas na anlise conjunta, indicando controle gentico e grande possibilidade de serem transmitidas para as geraes futuras. Na anlise conjunta as populaes PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 e PI 197442-S3-bulk 8 apresentaram os maiores teores e rendimentos de leo essencial. Quanto ao constituinte qumico majoritrio do leo essencial, o linalol, todas as populaes apresentaram teores semelhantes, diferindo apenas na presena de alguns constituintes qumicos minoritrios. Abstract in english Basil (Ocimum basilicum L.) genotypes present different contents, yields and chemical constituents in its essential oils. Factors influence the essential oil production of basil, such as cultivar and cultivation method. The study of genetic parameters is a useful tool to identify superior genotypes. [...] In this work we estimated some genetic parameters associated to the production behavior of six basil populations cultivated in 2004/05 and 2005/06. The variables dry weight of leaves + inflorescences and essential oil yield presented high variability because of strong influence of the studied years. Linalool content presented constant values during the two years. Essential oil content and yield and linalool content in the essential oil presented high herdability in the combined analyses, indicating genetic control and great possibilities to transmit them to the following generations. The combined analyses showed highest essential oil content and yield for the populations PI 197442-S3-bulk 3, PI 197442-S3-bulk 5 and PI 197442-S3-bulk 8. For the major chemical constituent of the essential oil, linalool, all the populations presented similar content. Only the minor chemical constituents were different.

  19. A Hybrid Adenoviral Vector System Achieves Efficient Long-Term Gene Expression in the Liver via piggyBac Transposition.

    Science.gov (United States)

    Smith, Ryan P; Riordan, Jesse D; Feddersen, Charlotte R; Dupuy, Adam J

    2015-06-01

    Much research has gone into the development of hybrid gene delivery systems that combine the broad tropism and efficient transduction of adenoviral vectors with the ability to achieve stable expression of cargo genes. In addition to gene therapy applications, such a system has considerable advantages for studies of gene function in vivo, permitting fine-tuned genetic manipulation with higher throughput than can be achieved using standard transgenic and DNA targeting techniques. Existing strategies are limited, however, by low integration efficiencies, small cargo capacity, and/or a dependence on target cell division. The utility of this approach could be enhanced by a system that provides all of the following: (1) efficient delivery, (2) stable expression in a high percentage of target cells (whether mitotic or not), (3) large cargo capacity, (4) flexibility to use with a wide range of additional experimental conditions, and (5) simple experimental technique. Here we report the initial characterization of a hybrid system that meets these criteria by utilizing piggyBac (PB) transposition to achieve genomic integration from adenoviral vectors. We demonstrate stable expression of an adenovirus (Ad)-PB-delivered reporter gene in ?20-40% of hepatocytes following standard tail vein injection. Its high efficiency and flexibility relative to existing hybrid adenoviral gene delivery approaches indicate a considerable potential utility of the Ad-PB system for therapeutic gene delivery and in vivo studies of gene function. PMID:25808258

  20. Maxillary canine-first premolar transposition in the permanent dentition: treatment considerations and a case report.

    LENUS (Irish Health Repository)

    Synodinos, Philippos N

    2010-12-01

    Transposition is defined as the interchange of position between two adjacent teeth within the same quadrant of the dental arch. Permanent maxillary canine-premolar transposition is the most commonly observed transposition in the human dentition. Its prevalence is relatively low and its aetiology remains unclear, although it has been associated with genetic factors. It may also be related to a combination of localised factors such as malformation of adjacent teeth, tooth agenesis, retention of the deciduous canine and a history of local trauma. Treatment is selected on an individual case basis after thoroughly considering the overall facial and dental characteristics, duration of treatment, cost, patient preference and the orthodontist\\'s experience. This article provides a case report of maxillary canine transposition in the permanent dentition, successfully managed with orthodontic treatment.

  1. Effect of lateral release and tibial tuberosity transposition on the patellar tilt analyzed by MRI

    International Nuclear Information System (INIS)

    The preliminary results are presented from studies in which MRI techniques are used to analyze the effect of lateral release and tibial tuberosity transposition procedures on the patellofemoral relationships. (author). 4 refs.; 1 fig.; 1 tab

  2. Benefits of endoscopic vein harvesting.

    Science.gov (United States)

    Marty, B; von Segesser, L K; Tozzi, P; Guzmann, J; Frascarolo, P; Muller, X; Hayoz, D

    2000-09-01

    The purpose of this study was to evaluate and compare the benefits of endoscopic saphenous vein harvesting (EVH) with the traditional incision technique (TIT) for coronary artery bypass grafting (CABG) in respect to the technical procedure and clinical outcome. In a prospective nonrandomized, case-matched study the greater saphenous vein was harvested for CABG in 22 patients using the endoscopic technique and in 18 patients with the traditional method. Comparisons were made for the operating time, length of incision and vein harvested, graft quality, postoperative complications, and pain assessment. Patient demographics were well matched. EVH required smaller incisions than did the TIT (10.5 +/- 6.6 vs. 31.2 +/- 7.8 cm, respectively; p Harvest time and vein quality were comparable in the two groups. Total vein operating time was shorter following the endoscopic technique (60 +/- 24 vs. 100 +/- 35 minutes, respectively; p endoscopic vein harvesting are a significant reduction of postoperative pain and strikingly better cosmetic results. Wound complications seem to be less frequent. PMID:11036289

  3. Chemical composition and antimicrobial properties of different basil essential oils chemotypes from Togo

    Directory of Open Access Journals (Sweden)

    Koffi Koba

    2009-06-01

    Full Text Available The aerial parts essential oils of Ocimum basilicum (Lamiaceae from Togo were steam-distilled and investigated for their percentage composition (GC and GC/MS and in vitro antimicrobial activities. Five oil chemotypes were identified and classified as follows in line with their principal components: estragole type; linalool/estragole type; methyleugenol type; methyleugenol/t-anethole type; t-anethole type. The in vitro microbiological experiments revealed that only the methyleugenol and methyleugenol/t-anethole chemotypes were active against tested fungi and bacteria. Their minimum inhibitory concentrations (MIC ranged from 80 to 150 µl.l-1 and from 200 to 500 µl.l-1 respectively. Likewise, on tested bacteria the MIC varied from 200 µl.l-1 to 400 µl.l-1 and from 250 to 500 µl.l-1 respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic drugs.

  4. Optimisation of microencapsulation of holy basil essential oil in gelatin by response surface methodology.

    Science.gov (United States)

    Sutaphanit, Polin; Chitprasert, Pakamon

    2014-05-01

    To protect holy basil essential oil (HBEO) from volatilisation and oxidation, microencapsulation by simple coacervation of gelatin was developed. An optimal encapsulating condition obtained from response surface methodology (RSM) was a gelatin concentration of 11.75% (w/v) and an HBEO amount of 31ml, which provided the greatest yield, oil content, and encapsulation efficiency of 98.80%, 66.50%, and 95.41%, respectively. Scanning electron microscope (SEM) revealed that the internal surface of the microcapsule was honeycomb-like networks containing nonhomogeneous distributions of HBEO. Fourier transform infrared spectroscopy (FTIR) indicated that there was no significant interaction between the HBEO and gelatin. Under storage conditions at 60C for 49days equivalent to 25C for 18months, small decreases in the HBEO retention rate and the antioxidant activity were observed. Thus, the microencapsulated formulation has potential to be applied to other volatile compounds. PMID:24360456

  5. Characterization of new biodegradable edible film made from basil seed (Ocimum basilicum L.) gum.

    Science.gov (United States)

    Khazaei, Naimeh; Esmaiili, Mohsen; Djomeh, Zahra Emam; Ghasemlou, Mehran; Jouki, Mohammad

    2014-02-15

    It is well known that the market for edible films is experiencing remarkable growth and expected to continue. This study investigated the using of basil seed gum (BSG) as a new film-forming material under the influence of addition of glycerol (GLY) as plasticizer. Edible films based on BSG and three different concentrations of GLY (25%, 35%, and 50% w/w BSG) were developed, and their water vapor permeability (WVP), as well as physical, thermal and mechanical properties were measured. The addition of glycerol significantly increased water vapor permeability and solubility of the film (pfilms as smooth, and uniform which lacked pores or cracks compared with those were not plasticized. This study revealed that the BSG had a good potential to be used in producing edible films for various food applications. PMID:24507273

  6. Transposition of Reversed Ac Element Ends Generates Novel Chimeric Genes in Maize

    OpenAIRE

    Zhang, Jianbo; Zhang, Feng; Peterson, Thomas

    2006-01-01

    The maize Activator/Dissociation (Ac/Ds) elements are members of the hAT (hobo, Ac, and Tam3) superfamily of type II (DNA) transposons that transpose through a cut-and-paste mechanism. Previously, we reported that a pair of Ac ends in reversed orientation is capable of undergoing alternative transposition reactions that can generate large-scale chromosomal rearrangements, including deletions and inversions. We show here that rearrangements induced by reversed Ac ends transposition can join ...

  7. Transposition of the gram-positive transposon Tn917 in Escherichia coli.

    OpenAIRE

    Kuramitsu, H K; Casadaban, M J

    1986-01-01

    The streptococcal transposon Tn917 was demonstrated to transpose in Escherichia coli from the Bacillus subtilis-E. coli shuttle plasmid pHK1207 into an F' plasmid derivative. Subsequently, a second round of transposition from the F' plasmid into pACYC184 could be readily demonstrated. These results represent the initial demonstration of the transposition of a gram-positive transposon in a gram-negative bacterium at a relatively high frequency.

  8. Effect of brushwood transposition on the leaf litter arthropod fauna in a cerrado area

    OpenAIRE

    Paula Cristina Benetton Verglio; Ftima do Rosrio Naschenveng Knoll; Daniela da Silva Mariano; Ngila Maiara Dinardi; Marcos Yukio Ueda; Osmar Cavassan

    2013-01-01

    The results of ecological restoration techniques can be monitored through biological indicators of soil quality such as the leaf litter arthropod fauna. This study aimed to determine the immediate effect of brushwood transposition transferred from an area of native vegetation to a disturbed area, on the leaf litter arthropod fauna in a degraded cerrado area. The arthropod fauna of four areas was compared: a degraded area with signal grass, two experimental brushwood transposition areas, with ...

  9. IS231A from Bacillus thuringiensis is functional in Escherichia coli: transposition and insertion specificity.

    OpenAIRE

    Hallet, Bernard; Rezsohazy, Ren; Delcour, Jean

    1991-01-01

    A kanamycin resistance gene was introduced within the insertion sequence IS231A from Bacillus thuringiensis, and transposition of the element was demonstrated in Escherichia coli. DNA sequencing at the target sites showed that IS231A transposition results in direct repeats of variable lengths (10, 11, and 12 bp). These target sequences resemble the terminal inverted repeats of the transposon Tn4430, which are the preferred natural insertion sites of IS231 in B. thuringiensis.

  10. Enhancement of Sleeping Beauty Transposition by CpG Methylation: Possible Role of Heterochromatin Formation

    OpenAIRE

    Yusa, Kosuke; Takeda, Junji; Horie, Kyoji

    2004-01-01

    The Sleeping Beauty (SB) transposase is the most active transposase in vertebrate cells, and the SB transposon system has been used as a tool for insertional mutagenesis and gene delivery. Previous studies have indicated that the frequency of chromosomal transposition is considerably higher in mouse germ cells than in mouse embryonic stem cells, suggesting the existence of unknown mechanisms that regulate SB transposition. Here, we demonstrated that CpG methylation of the transposon region en...

  11. Simple and efficient generation in vitro of nested deletions and inversions: Tn5 intramolecular transposition.

    OpenAIRE

    York, D.; Welch, K; Goryshin, I Y; Reznikoff, W S

    1998-01-01

    We have exploited the intramolecular transposition preference of the Tn 5 in vitro transposition system to test its effectiveness as a tool for generation of nested families of deletions and inversions. A synthetic transposon was constructed containing an ori, an ampicillin resistance (Ampr) gene, a multi-cloning site (MCS) and two hyperactive end sequences. The donor DNA that adjoins the transposon contains a kanamycin resistance (Kanr) gene. Any Amprreplicating plasmid that has undergone a ...

  12. IS10/Tn10 transposition efficiently accommodates diverse transposon end configurations.

    OpenAIRE

    Chalmers, R M; Kleckner, N.

    1996-01-01

    Transposon Tn10 and its component insertion sequence IS10 move by non-replicative transposition. We have studied the array of reaction intermediates and products in a high efficiency in vitro IS10/Tn10 transposition reaction. Synapsis of two transposon ends, followed by cleavage and strand transfer, can occur very efficiently irrespective of the relative locations and orientations of the two ends. The two participating ends can occur in inverted or direct orientation on the same molecule or, ...

  13. piggyBac can bypass DNA synthesis during cut and paste transposition

    OpenAIRE

    Mitra, Rupak; Fain-Thornton, Jennifer; Craig, Nancy L.

    2008-01-01

    DNA synthesis is considered a defining feature in the movement of transposable elements. In determining the mechanism of piggyBac transposition, an insect transposon that is being increasingly used for genome manipulation in a variety of systems including mammalian cells, we have found that DNA synthesis can be avoided during piggyBac transposition, both at the donor site following transposon excision and at the insertion site following transposon integration. We demonstrate that piggyBac tra...

  14. Haplotype-resolved whole genome sequencing by contiguity preserving transposition and combinatorial indexing

    OpenAIRE

    Amini, Sasan; Pushkarev, Dmitry; Christiansen, Lena; Kostem, Emrah; Royce, Tom; Turk, Casey; Pignatelli, Natasha; Adey, Andrew; Kitzman, Jacob O.; Vijayan, Kandaswamy; Ronaghi, Mostafa; Shendure, Jay; Gunderson, Kevin L; Steemers, Frank J.

    2014-01-01

    Haplotype-resolved genomes equencing enables accurate interpretation of medically relevant genetic variation, deep inferences regarding population history, and the non-invasive prediction of fetal genomes. We describe an approach for genome-wide haplotyping based on contiguity preserving transposition (CPT-Seq) and combinatorial indexing. Tn5 transposition is used to modify DNA with adapter and index sequences while preserving contiguity. After dilution and compartmentalization, the transposa...

  15. Effects of drying methods on qualitative and quantitative properties of essential oil of two basil landraces.

    Science.gov (United States)

    Ghasemi Pirbalouti, Abdollah; Mahdad, Elahe; Craker, Lyle

    2013-12-01

    Sweet basil, a plant that is extensively cultivated in some countries, is used to enhance the flavour of salads, sauces, pasta and confectioneries as both a fresh and dried herb. To determine the effect of drying methods on qualitative and quantitative characteristics of the plant and essential oil of basil, two landraces, Purple and Green, were dried in sunlight, shade, mechanical ovens at 40 C and 60 C, a microwave oven at 500 W and by freeze-drying. For comparison, the essential oils of all samples were extracted by hydrodistillation and analyzed using GC and GC-MS. The highest essential oil yields (v/w on dry weight basis) were obtained from shade-dried tissue in both landraces followed by the freeze-dried sample of the purple landrace and the fresh sample of green landrace. Increasing the drying temperature significantly decreased the essential oil content of all samples. Significant changes in the chemical profile of the essential oils from each of the landrace were associated with the drying method, including the loss of most monoterpene hydrocarbons, as compared with fresh samples. No significant differences occurred among several constituents in the extracted essential oils, including methyl chavicol (estragole), the major compound in the oil of both landraces, whether the plants were dried in the shade or sun, oven at 40 C or freeze-dried, as compared with a fresh sample. The percentage methyl chavicol in the oil, however, decreased significantly when the plant material was dried in the oven at 60 C or microwaved. In addition, linalool, the second major compound in the purple landrace, and geranial and neral, major compounds in the green landrace, decreased significantly when the plant tissue was dried in the oven at 60 C or microwaved. PMID:23870979

  16. Alternative Transposition Generates New Chimeric Genes and Segmental Duplications at the Maize p1 Locus.

    Science.gov (United States)

    Wang, Dafang; Yu, Chuanhe; Zuo, Tao; Zhang, Jianbo; Weber, David F; Peterson, Thomas

    2015-11-01

    The maize Ac/Ds transposon family was the first transposable element system identified and characterized by Barbara McClintock. Ac/Ds transposons belong to the hAT family of class II DNA transposons. We and others have shown that Ac/Ds elements can undergo a process of alternative transposition in which the Ac/Ds transposase acts on the termini of two separate, nearby transposons. Because these termini are present in different elements, alternative transposition can generate a variety of genome alterations such as inversions, duplications, deletions, and translocations. Moreover, Ac/Ds elements transpose preferentially into genic regions, suggesting that structural changes arising from alternative transposition may potentially generate chimeric genes at the rearrangement breakpoints. Here we identified and characterized 11 independent cases of gene fusion induced by Ac alternative transposition. In each case, a functional chimeric gene was created by fusion of two linked, paralogous genes; moreover, each event was associated with duplication of the ?70-kb segment located between the two paralogs. An extant gene in the maize B73 genome that contains an internal duplication apparently generated by an alternative transposition event was also identified. Our study demonstrates that alternative transposition-induced duplications may be a source for spontaneous creation of diverse genome structures and novel genes in maize. PMID:26434719

  17. 'Muprints' of the lac operon demonstrate physiological control over the randomness of in vivo transposition.

    Science.gov (United States)

    Wang, X; Higgins, N P

    1994-05-01

    A method called Muprinting has been developed that uses PCR to generate a detailed picture of the bacteriophage Mu transposition sites in chosen domains of the bacterial chromosome. Muprinting experiments in Escherichia coli show that the frequency of phage integration changes dramatically near two repressor binding sites in the lac operon. When the lac operon was repressed, hotspots for Mu transposition were found near the O1 and O2 operators that are proposed to make a repression loop. When cells were grown in lactose, Mu transposition near these operators was greatly diminished. Striking changes in transposition frequencies were limited to the control region and were not found in a region of the lacZ gene lying beyond the O2 operator. Muprints of the bgl operon showed a different pattern; hotspots for Mu transposition detected in sequences upstream of the bglC promoter when the operon was silenced changed when the operon became activated by mutation. By targeting transposition to the regulatory regions around non-expressed genes, Mu may demonstrate a self-restraint mechanism that allows the virus to move through its host genome without disrupting the functions that contribute to a healthy cell physiology. PMID:7934890

  18. Formulation and in vivo evaluation for anti-aging effects of an emulsion containing basil extract using non- invasive biophysical techniques

    OpenAIRE

    Akhtar, N; Rasul, A.

    2011-01-01

    Background and the purpose of study: Skin aging is a complex process induced by constant exposure to ultraviolet (UV) irradiation and damages human skin. UV generates reactive oxygen species leading to collagen deficiency and eventually skin wrinkling. Basil contains a number of phenolics and favonoids which possess antioxidant properties. The aim of this study was to formulate and investigate the antiaging potential of a cream containing Basil extract. Methods: A single blinded study was con...

  19. Considerations and concerting on the european directive transposition to the internal gas market; Mission de reflexion et de concertation sur la transposition de la directive europeenne sur ''le marche interieur du gaz''

    Energy Technology Data Exchange (ETDEWEB)

    Bricq, N

    1999-10-01

    In the framework of the directive 98/30/CE transposition on the the gas internal market, a report has been asked by the First Ministry to define the new form of the gas utilities. The directive deals with the competition opening. The first part presents the gas market organization in France, today and after the transposition. The second part analyses the big stakes of this transposition. (A.L.B)

  20. Diameter of Cayley graphs generated by transposition trees

    CERN Document Server

    Ganesan, Ashwin

    2012-01-01

    A problem of much theoretical and practical interest is to determine or estimate the diameter of various families of Cayley graphs. Let $\\Gamma$ be a Cayley graph on $n!$ vertices generated by a transposition tree on vertex set ${1,2,...,n}$. In an oft-cited paper \\cite{Akers:Krishnamurthy:1989} (cf. also \\cite[p. 188]{Hahn:Sabidussi:1997}), it is shown that the diameter of $\\Gamma$ is bounded as $$\\diam(\\Gamma) \\le \\max_{\\pi \\in S_n}{c(\\pi)-n+\\sum_{i=1}^n \\dist_T(i,\\pi(i))},$$ where the maximum is over all permutations in $S_n$, $c(\\pi)$ denotes the number of cycles in the disjoint cycle representation of $\\pi$, and $\\dist_T$ is the distance function on pairs of vertices of the tree. Observe that evaluating this upper bound requires $\\Omega(n! n^2)$ computations since the quantity in braces above needs to be evaluated for each permutation in $S_n$. In this work, we describe an algorithm to estimate the diameter of the Cayley graph which requires far fewer computations, and furthermore, we show that the value...

  1. Transposition of the EU cogeneration directive: A vision for Portugal

    International Nuclear Information System (INIS)

    The potential for new, small-scale and micro-cogeneration installations in Portugal is very considerable due to the number of potential host buildings. In this work, we discuss the legal framework of the Portuguese energy market, and some modifications to accommodate the Directive, 2004/8/EC are stressed. A practical case of cogeneration is also presented, showing the application of the Annex III (b) and (c) of the Cogeneration Directive. The practical case presented shows that micro CHP can be considered highly efficient, with parameters calculated with the Directive rules. Two main improvements in Portugal's energy policy are important: improvement on the permission to access grid system and improvement on support mechanisms indexing it to PES. The Cogeneration Directive transposition is an excellent opportunity to induce a less restrictive framework for the installation of new cogeneration systems, reducing the technological barriers, namely allowing medium-voltage connection with the grid, and improving the revenues provided from these small cogeneration systems. These modifications can improve significantly the number of potential hosts for small-scale cogeneration systems

  2. Transposition of the EU cogeneration directive: A vision for Portugal

    International Nuclear Information System (INIS)

    The potential for new, small-scale and micro-cogeneration installations in Portugal is very considerable due to the number of potential host buildings. In this work, we discuss the legal framework of the Portuguese energy market, and some modifications to accommodate the Directive, 2004/8/EC are stressed. A practical case of cogeneration is also presented, showing the application of the Annex III (b) and (c) of the Cogeneration Directive. The practical case presented shows that micro CHP can be considered highly efficient, with parameters calculated with the Directive rules. Two main improvements in Portugal's energy policy are important: improvement on the permission to access grid system and improvement on support mechanisms indexing it to PES. The Cogeneration Directive transposition is an excellent opportunity to induce a less restrictive framework for the installation of new cogeneration systems, reducing the technological barriers, namely allowing medium-voltage connection with the grid, and improving the revenues provided from these small cogeneration systems. These modifications can improve significantly the number of potential hosts for small-scale cogeneration systems. (author)

  3. Efficient Insertion Mutagenesis Strategy for Bacterial Genomes Involving Electroporation of In Vitro-Assembled DNA Transposition Complexes of Bacteriophage Mu

    OpenAIRE

    Lamberg, Arja; Nieminen, Sari; Qiao, Mingqiang; Savilahti, Harri

    2002-01-01

    An efficient insertion mutagenesis strategy for bacterial genomes based on the phage Mu DNA transposition reaction was developed. Incubation of MuA transposase protein with artificial mini-Mu transposon DNA in the absence of divalent cations in vitro resulted in stable but inactive Mu DNA transposition complexes, or transpososomes. Following delivery into bacterial cells by electroporation, the complexes were activated for DNA transposition chemistry after encountering divalent metal ions wit...

  4. Study on Corrosion Inhibition Efficiency of Stem Alkaloid Extract of Different Varieties of Holy Basil on Aluminium in HCl Solution

    International Nuclear Information System (INIS)

    Corrosion inhibition efficiencies of holy basil on Al in HCl solution were studied by weight loss and thermometric methods in presence and in absence of stem extract of three different varieties of holy basil viz. ocimum basilicum (EB), ocimum canum (EC) and ocimum sanctum (ES). Inhibition efficiency increases with the increasing concentration of stem extract and decreases with increases in acid strength. Results show that all varieties under study are good corrosion inhibitors, among which, EB is most effective. Maximum inhibition efficiency was found 97.09% in 0.5N HCl solution with 0.6% stem extract. The Langmuir adsorption isotherm indicates that surface coverage also increases with increasing in the concentration of extract of stem in HCl solution

  5. The roles of a flavone-6-hydroxylase and 7-O-demethylation in the flavone biosynthetic network of sweet basil.

    Science.gov (United States)

    Berim, Anna; Gang, David R

    2013-01-18

    Lipophilic flavonoids found in the Lamiaceae exhibit unusual 6- and 8-hydroxylations whose enzymatic basis is unknown. We show that crude protein extracts from peltate trichomes of sweet basil (Ocimum basilicum L.) cultivars readily hydroxylate position 6 of 7-O-methylated apigenin but not apigenin itself. The responsible protein was identified as a P450 monooxygenase from the CYP82 family, a family not previously reported to be involved in flavonoid metabolism. This enzyme prefers flavones but also accepts flavanones in vitro and requires a 5-hydroxyl in addition to a 7-methoxyl residue on the substrate. A peppermint (Mentha piperita L.) homolog displayed identical substrate requirements, suggesting that early 7-O-methylation of flavones might be common in the Lamiaceae. This hypothesis is further substantiated by the pioneering discovery of 2-oxoglutarate-dependent flavone demethylase activity in basil, which explains the accumulation of 7-O-demethylated flavone nevadensin. PMID:23184958

  6. Study on Corrosion Inhibition Efficiency of Stem Alkaloid Extract of Different Varieties of Holy Basil on Aluminium in HCl Solution

    Energy Technology Data Exchange (ETDEWEB)

    Kumpawat, Nutan; Chaturvedi, Alok; Upadhyay, R. K. [Synthetic and Surface Science Laboratory, Ajmer (India)

    2012-08-15

    Corrosion inhibition efficiencies of holy basil on Al in HCl solution were studied by weight loss and thermometric methods in presence and in absence of stem extract of three different varieties of holy basil viz. ocimum basilicum (E{sub B}), ocimum canum (E{sub C}) and ocimum sanctum (E{sub S}). Inhibition efficiency increases with the increasing concentration of stem extract and decreases with increases in acid strength. Results show that all varieties under study are good corrosion inhibitors, among which, E{sub B} is most effective. Maximum inhibition efficiency was found 97.09% in 0.5N HCl solution with 0.6% stem extract. The Langmuir adsorption isotherm indicates that surface coverage also increases with increasing in the concentration of extract of stem in HCl solution.

  7. Interrupting connection of superficial and deep veins of the upper extremity at the elbow for creation of hemodialysis arteriovenous fistulas

    Directory of Open Access Journals (Sweden)

    Moini Majid

    2010-01-01

    Full Text Available We hypothesized that interrupting the connection between superficial and deep veins of the upper extremity at the elbow for creation of hemodialysis arteriovenous fistulas (AVFs, in addition to adequate dilation of the elbow veins, will reduce the risk of steal syndrome and venous hypertension. In this prospective study over a period of one year, patients who were candidates for creation of elbow AVFs based on Doppler ultrasound findings and physical exa-mination, were enrolled into the study. For creation of AVFs, based on the anatomy of the vessels, side-to-side or end-to-side anastomosis between the brachial artery and either cephalic or median antecubital or basilic veins was performed. In some cases, Gracz AVF was created. For inter-rupting the connection between superficial and deep veins, the perforating vein was either ligated or used for anastomosis. The patients were then followed-up regarding patency rate of the AVF and complications. AVFs were created in 50 patients and the duration of follow-up varied from one to eight months. About 56% (n = 28 of the patients had history of failed AVF or arterio-venous graft and 48% (n = 24 of them had history of insertion of a dual-lumen catheter for hemo-dialysis. Neuromuscular problem (n=1 and infection (n=1 were the observed complications. None of the patients developed steal syndrome or venous hypertension. At the end of the study, 47 AVFs (94% were patent and adequate. Our study suggests that interrupting the connection between the superficial and deep venous systems of the upper extremity can reduce the risk of development of steal syndrome and venous hypertension despite side-to-side anastomosis. These techniques provided acceptable patency rate for elbow AVFs.

  8. Lipid and protein oxidation in the internal part of italian type salami containing basil essential oil (Ocimum basilicum L.

    Directory of Open Access Journals (Sweden)

    Alexandre José Cichoski

    2011-06-01

    Full Text Available Different concentrations of basil essential oil (Ocimum basilicum L. (0.19; 0.38; 0.75; 1.87; 3.75 and 6.00 mg.g-1 were evaluated in relation to their antioxidant activity using the DPPH● radical methodology. From the IC50 obtained data, the concentrations of 0.19; 0.38; 0.75; 1.87; 3.75; 6.00 and 12.00 mg.mL-1 were applied directly to the product and these were sensorially evaluated by the test of control difference. The concentrations related to the highest acceptability (0.19; 0.38 and 0.75 mg.g-1 were tested for antioxidant activity in the internal part of Italian type salami - during the processing and after 30 days of storage, in terms of lipid and protein oxidation. The oxidation of lipids was determined using the method of TBARS. The method of carbonyl compounds was employed for proteins oxidation. Five different formulations of salami were elaborated: blank (without the use of antioxidant; control (using sodium eritorbate as antioxidant; and adding 0.19; 0.38 and 0.75 mg.g-1 of basil essential oil. The product was kept between 25 ºC and 18 ºC and UR between 95% and 70%, for 28 days. Analyses were carried out on the processing day and after 2, 7, 14, 21 and 28 days, and also following 30 days of storage. The basil essential oil in vitro presented an antioxidant activity of IC50 12 mg.mL-1. In the internal part of the Italian type salami the commercial antioxidant (control and the formulation containing 0.75 mg.g-1 of basil essential oil presented antioxidant activity in relation to the lipids, but not to the proteins - during processing and storage.

  9. Anatomical variations of the saphenous vein arc.

    Directory of Open Access Journals (Sweden)

    Jos Luis Ciucci

    2010-11-01

    Full Text Available There are many anatomical variations presented by the tributaries of the saphenous vein at the saphenous femoral junction .In anatomical texts, they are plotted as usual tributaries to the femoral vein, presentations that are not found during routine surgical practice. Knowledge of the sapheno- femoral vein junction is imperative for the surgeon when operating the venous system of lower limbs, in order to avoid accidents and prevent intraoperative varicose recurrences. The aim of the present paper is to demonstrate which of the anatomical variations of the arc of the great saphenous vein is shown more often, contributing to the description of the anatomy of the region and its name in the anatomical terminology. The present work is based on experience of one hundred dissections (n = 100 of the femoral inguinal region in human cadavers fixed with formol aqueous solution of 5% v / v, twenty (n = 20 of which were filled with latex via endovascular before its fixation. The basic scheme of the arc of the great saphenous vein receives the following tributaries: the superficial circumflex iliac vein, superficial epigastric vein [subcutaneous abdominal vein], external pudendal veins, accessory vein of the thigh [dorsal thigh], inter saphenous vein [Giacomini vein]. Inter saphenous vein was observed [Giacomini vein] in a large percentage of the sample (66%. On 77% of the cases, a single saphenous trunk was found, 22% of duplication and triplication 1%. Exceptionally small caliber veins reach the common femoral vein on its inner side, draining the pudendal region, may correspond to the third vein pudendal described by Vilanova, or a tributary of the arc that ends in isolation while the rest of the arc remains on the basic disposition. Successful surgery of the saphenous vein arc is based on an optimal anatomical knowledge of the sapheno - femoral junction, its anatomical variations and relationships.

  10. Management of superficial vein thrombosis.

    Science.gov (United States)

    Cosmi, B

    2015-07-01

    Superficial vein thrombosis (SVT) is less well studied than deep vein thrombosis (DVT), because it has been considered to be a minor, self-limiting disease that is easily diagnosed on clinical grounds and that requires only symptomatic relief. The most frequently involved sites of the superficial vein system are the lower limbs, especially the saphenous veins, mostly in relation to varicosities. Lower-limb SVT shares the same risk factors as DVT; it can propagate into the deep veins, and have a complicated course with pulmonary embolism. Clinical diagnosis may not be accurate, and ultrasonography is currently indicated for both confirmation and evaluation of SVT extension. Treatment aims are symptom relief and prevention of venous thromboembolism (VTE) in relation to the thrombotic burden. SVT of the long saphenous vein within 3cm of the saphenofemoral junction (SFJ) is considered to be equivalent to a DVT, and thus deserving of therapeutic anticoagulation. Less severe forms of lower-limb SVT not involving the SFJ have been included in randomized clinical trials of surgery, compression hosiery, non-steroidal anti-inflammatory drugs, unfractionated heparin, and low molecular weight heparins, with inconclusive results. The largest randomized clinical trial available, on 3004 patients with lower-limb SVT not involving the SFJ, showed that fondaparinux 2.5mg once daily for 6weeks is more effective than placebo in reducing the risk of the composite of death from any cause and symptomatic VTE (0.9% versus 5.9%). Further studies are needed to define the optimal management strategies for SVT of the lower limbs and other sites, such as the upper limbs. PMID:25903684

  11. Immunohistochemistry comparing endoscopic vein harvesting vs. open vein harvesting on saphenous vein endothelium

    Science.gov (United States)

    2014-01-01

    Objective The present study attempts to compare the immunohistochemistry (IHC) of von Willebrand factor (vWf) , endothelial cadherin, Caveolin and endothelial Nitric Oxide Synthase (eNOS) in VasoView Endoscopic Vein Harvesting (EVH) versus traditional Open Vein Harvesting (OVH) techniques for Coronary Artery Bypass Graft (CABG) Surgery performed in Javad al Aemeh Hospital of Mashhad, Iran in 2013,. Methods and materials Forty-seven patients were scheduled for CABG (30 EVH and 17 OVH) among whom patients with relatively same gender and similar age were selected. Three separate two cm vein samples were harvested from each patients saphenous vein. Each portion was collected from distal, middle and proximal zones of the saphenous vein. The tissues were deparaffinized, and antigen retrieval was done using EZ-retriever followed by an immunohistochemistry evaluation with vWf, e-cadherin, Caveolin and eNOS. In addition, demographic questioner as of Lipid profile, FBS, BMI, and cardiovascular risk factors were collected. Data analyses, including parametric and nonparametric tests were undertaken using the SPSS 16 software. A P value??0.05). Qualitative report of vWf, e-cadherin, Caveolin and eNOS reveals no significant difference between the EVH and OVH (P?>?0.05). Conclusion This study indicates that VasoView EVH technique causes no endothelial damage in comparison with OVH. This study could be a molecular confirmation for the innocuous of EVH technique. PMID:24938544

  12. Transposition bursts during analysis of secondary mutations in the unstable lines of Drosophila melanogaster

    International Nuclear Information System (INIS)

    The article deals with realization of transposition memory discovered earlier at cut locus and in MDG4. The unstable line cmMR17 ctMRpN17, a derivative of ctMR2 line, was used. It has high frequency of double cm+ct+ revertants and secondary cmMRctMRpN mutants. Such mutant transitions were observed in the line five times. Mutation ctMRpN17 was caused by the insertion at cut locus of MDG4 with another mobile element, jockey. In situ hybridization showed that the transitions from mutational condition to normal are strongly correlated with the excision of MDG4 and jockey from 7B3-4 region of cut locus and their repeated insertion into it. The analysis of distribution of MDG1, MDG2, MDG3, and jockey in the X chromosomes of the revertant larvae and secondary mutants showed that not only transpositions of MDG4 and jockey but also simultaneous multiple migration of all the tested mobile elements take place with their complete stability in the absence of mutational transitions. Therefore, the transposition memory in this system of genetic instability is realized in the process of transposition bursts, but does not lead to isolated repeated transpositions of MDG4

  13. Myocardial imaging in patients with transposition of the great arteries

    International Nuclear Information System (INIS)

    Thallium-201 myocardial imaging was performed in 21 patients with transposition of the great arteries (TGA). In the 13 pa tients with preoperative TGA, it was possible to differentiate TGA with the intact ventricular septum from TGA with associated anomalies such as patent ductus arteriosus or ventricular septal defect, and also TGA with pulmonary hypertension or pulmonary stenosis from TGA without them by evaluating the degree of thallium uptake in the free wall of the pulmonary ventricle (anatomical left ventricle). The degree of thallium uptake was well correlated with systolic pressure of the pulmonary ventricle (r = 0.98). In the 13 patients with postoperative TGA, it was less correlated with the pulmonary ventricular systolic pressure (r = 0.83). Four cases sequentially studied showed a marked decrease in thallium uptake in the pulmonary ventricle 10 to 16 months after Rastelli operation. But the corrected thallium uptake (thallium activity / ventricular systolic pressure) was more increased compared with the uptake of the systemic ventricle after the surgery. This was probably related to a decrease of the pressure load to the pulmonary ventricle following the surgery and to the fact that there should be some delay of a decrease of the ventricular mass. An increased lung uptake of thallium was noted in the cases of tricuspid regurgitation after Mustard operation, but the degree of regurgitation was not clearly correlated with the increase of thallium uptake in the lung. In five cases after Rastelli operation, one patient showed a high degree of thallium uptake of the pulmonary ventricle (anatomical right ventricle), and the conduit valve calcification and severe pulmonary stenosis were confirmed by cardiac catheterization and angiography. Thus myocardial imaging provides a reliable mean for the qualitative and quantitative assessment of TGA before and after operation. (J.P.N.)

  14. Kinetics of vein graft hyperplasia

    International Nuclear Information System (INIS)

    Human aortocoronary vein grafts fail due to accelerated occlusive disease. The possibility that this is related to cellular hyperplasia was investigated in a rabbit model where kinetics of vein graft thickening, endothelial (EC) repair, and smooth muscle cell (SMC) proliferation were measured from 2 days to 24 weeks after implanting jugular vein segments in the carotid artery. Immediately after graft placement focal EC denudation was observed. These defects were repaired within 1 week and did not recur. By 4 weeks intimal area had increased 30 fold from 0.028 +/- 0.004 to 0.705 +/- 0.021 mm2, and a 24 weeks was 0.93 +/- 0.21 mm2. This response did not produce a reduction in graft lumen area. EC and SMC thymidine-labeling index were measured by en face and cross-section autoradiography after injection of 3H-thymidine and perfusion fixation. Despite rapid EC surface repair EC labeling index remained elevated and only returned to normal levels at 12 weeks; SMC labeling was 10 fold greater than baseline even at 24 weeks (0.22% vs 0.02%). SMC mass demonstrated morphometrically increased between 2 and 12 weeks. Intimal thickening in vein grafts is due to SMC proliferation and develops after the EC layer has been restored. In contrast, intimal SMC proliferate in damaged arteries when the EC layer is absent and cease when the EC layer is regenerated

  15. Biventricular Pacemaker Implantation via the Femoral Vein.

    Science.gov (United States)

    Agosti, Sergio; Brunelli, Claudio; Bertero, Giovanni

    2012-08-01

    We report the case of biventricular pacemaker implantation via the femoral vein, in a patient with impossibility of using standard superior vein approach and a contraindication to epicardial lead placement. PMID:22870178

  16. Biventricular Pacemaker Implantation via the Femoral Vein

    OpenAIRE

    Agosti, Sergio; Brunelli, Claudio; Bertero, Giovanni

    2012-01-01

    We report the case of biventricular pacemaker implantation via the femoral vein, in a patient with impossibility of using standard superior vein approach and a contraindication to epicardial lead placement.

  17. Transcutaneous transsplenic catheterization of the splenic vein

    International Nuclear Information System (INIS)

    The authors have developed a method for transcutaneous transsplenic catheterizaton of the portal vein basin and used this method in clinical studies. This method permits a higher quality of spot splenoportography, selective catheterization and embolization of the gastric veins in bleedings from varicose veins of the esophagus in the patients in whom catheterization of the portal vien basin via the transcutaneous transhepatic approach is impossible because of liver tumors of occulusive stenotic deformation of the portal vein

  18. A Reappraisal of Saphenous Vein Grafting

    OpenAIRE

    Yuan Shi-Min; Jing Hua

    2011-01-01

    Autologous saphenous vein grafting has been broadly used as a bypass conduit, interposition graft, and patch graft in a variety of operations in cardiac, thoracic, neurovascular, general vascular, vascular access, and urology surgeries, since they are superior to prosthetic veins. Modified saphenous vein grafts (SVG), including spiral and cylindrical grafts, and vein cuffs or patches, are employed in vascular revascularization to satisfy the large size of the receipt vessels or to obtain a be...

  19. Surgical Access to Jejunal Veins for Local Thrombolysis and Stent Placement in Portal Vein Thrombosis

    International Nuclear Information System (INIS)

    Portal vein thrombosis is an infrequent entity, which may cause high morbidity and mortality. We report a case of portal vein thrombosis due to benign stenosis following partial pancreatoduodenectomy with segmental replacement of the portal vein by a Gore-tex graft. Using a surgical access to jenunal veins, local thrombolysis, mechanical fragmentation of thrombus, and stent placement were successfully performed.

  20. phenoVein-A Tool for Leaf Vein Segmentation and Analysis.

    Science.gov (United States)

    Bhler, Jonas; Rishmawi, Louai; Pflugfelder, Daniel; Huber, Gregor; Scharr, Hanno; Hlskamp, Martin; Koornneef, Maarten; Schurr, Ulrich; Jahnke, Siegfried

    2015-12-01

    Precise measurements of leaf vein traits are an important aspect of plant phenotyping for ecological and genetic research. Here, we present a powerful and user-friendly image analysis tool named phenoVein. It is dedicated to automated segmenting and analyzing of leaf veins in images acquired with different imaging modalities (microscope, macrophotography, etc.), including options for comfortable manual correction. Advanced image filtering emphasizes veins from the background and compensates for local brightness inhomogeneities. The most important traits being calculated are total vein length, vein density, piecewise vein lengths and widths, areole area, and skeleton graph statistics, like the number of branching or ending points. For the determination of vein widths, a model-based vein edge estimation approach has been implemented. Validation was performed for the measurement of vein length, vein width, and vein density of Arabidopsis (Arabidopsis thaliana), proving the reliability of phenoVein. We demonstrate the power of phenoVein on a set of previously described vein structure mutants of Arabidopsis (hemivenata, ondulata3, and asymmetric leaves2-101) compared with wild-type accessions Columbia-0 and Landsberg erecta-0. phenoVein is freely available as open-source software. PMID:26468519

  1. Cephalic veins in coronary artery bypass surgery

    DEFF Research Database (Denmark)

    Licht, P; Jakobsen, Erik; Lerbjerg, G; Andersen, P E; Alstrup, Per

    1996-01-01

    Various alternative conduits for aortocoronary bypass grafting have been suggested when the saphenous vein quality is inadequate. During a 10-year period we have used the cephalic vein in 39 patients. Eighteen entered an angiographic follow-up study. A total of 31 arm vein grafts were used with 4...

  2. Multisaccular Aneurysm in a Coronary Vein Graft

    OpenAIRE

    Pintar, Karl; Barboriak, Joseph J.; Moreno, Miguel

    1988-01-01

    This report describes an unusual multisaccular vein graft aneurysm that developed in a patient who had undergone aortocoronary bypass with a saphenous vein graft. The aneurysm was a complication of an atherosclerotic lesion. This case supports the belief that aortocoronary vein grafts have an increased susceptibility to aneurysm formation. (Texas Heart Institute Journal 1988;15:59-60)

  3. Chloroplast DNA Phylogeography of Holy Basil (Ocimum tenuiflorum) in Indian Subcontinent

    Science.gov (United States)

    Rani, Pooja

    2014-01-01

    Ocimum tenuiflorum L., holy basil Tulsi, is an important medicinal plant that is being grown and traditionally revered throughout Indian Subcontinent for thousands of years; however, DNA sequence-based genetic diversity of this aromatic herb is not yet known. In this report, we present our studies on the phylogeography of this species using trnL-trnF intergenic spacer of plastid genome as the DNA barcode for isolates from Indian subcontinent. Our pairwise distance analyses indicated that genetic heterogeneity of isolates remained quite low, with overall mean nucleotide p-distance of 5 10?4. However, our sensitive phylogenetic analysis using maximum likelihood framework was able to reveal subtle intraspecific molecular evolution of this species within the subcontinent. All isolates except that from North-Central India formed a distinct phylogenetic clade, notwithstanding low bootstrap support and collapse of the clade in Bayesian Inference. North-Central isolates occupied more basal position compared to other isolates, which is suggestive of its evolutionarily primitive status. Indian isolates formed a monophyletic and well-supported clade within O. tenuiflorum clade, which indicates a distinct haplotype. Given the vast geographical area of more than 3?million?km2 encompassing many exclusive biogeographical and ecological zones, relatively low rate of evolution of this herb at this locus in India is particularly interesting. PMID:24523650

  4. Congenitally corrected transposition of great arteries with ischemic symptoms in middle age

    International Nuclear Information System (INIS)

    Congenitally corrected transposition of great arteries (CCTGA) is a rare congenital disease first described by Von Rokitansky in 1875. Transposition of the great arteries comprises 2.6-7.8% of all cases of congenital heart disease, and if uncorrected, is commonly fatal in first year of life. Patients with corrected transposition of the great arteries without associated defects may remain undiagnosed until adult life. Symptoms occur rarely before the fourth and fifth decades, when rhythm disturbance, left atrioventricular valve regurgitation and moderately impaired systemic ventricular function cause congestive cardiac failure. We report here a case of drug overdose with ischemic symptoms and CCTGA without associated anomalies in a 40-year-old male. (author)

  5. [Retinal vein occlusion: Therapy of retinal vein occlusion].

    Science.gov (United States)

    Feltgen, N; Pielen, A

    2015-08-01

    Treatment of retinal vein occlusion can be systemic or local. Therapeutic strategies include improved blood supply, treatment of the vision-reducing macular edema by intravitreal injection of inhibitors of vascular endothelial growth factors (VEGF) or corticosteroids and laser photocoagulation for neovascular complications. As long as head-to-head studies comparing steroids and VEGF inhibitors have not been published, none of the available intravitreally injected substances can be given priority. Well-known side effects of intravitreal steroids are cataract formation and ocular hypertension whereas VEGF inhibitors need to be frequently injected. Although therapy for retinal vein occlusion is protracted, initial long-term data indicate that treatment can be terminated in at least half of the patients . Finally, a treatment recommendation according to the current state of data is presented. PMID:26242852

  6. Situs inversus with levocardia and congenitally corrected transposition of great vessels with rheumatic tricuspid valve stenosis and regurgitation

    Directory of Open Access Journals (Sweden)

    Bharat B Kukreti

    2011-01-01

    Full Text Available Congenitally corrected transposition of great arteries is a rare congenital anomaly. This case report describes a 30-year-old patient of congenitally corrected transposition of the great arteries with rheumatic involvement of systemic (tricuspid atrio-ventricular valve.

  7. Reconstruction of rectal sphincter by transposition of gluteus muscle for fetal incontinence.

    Science.gov (United States)

    Chen, Y L; Zhang, X H

    1987-01-01

    Many remedial operations have been described for fecal incontinence. We describe a bilateral gluteus muscle transposition to encircle the rectum with striated muscle. This procedure positions a voluntary muscle around the rectum to produce volitional rectal closure, the opposite direction pulling produces a kinking closure of the rectum, and the newly accentuated anorectal angle also facilitates continence. In 6 incontinent patients, 3 were normalized by this procedure, 1 was improved, and 2 had delayed improvement secondary to the development of a fecaloma. Gluteus muscle transposition may be a useful secondary procedure in that patient with muscle dysfunction deficiency fecal incontinence. PMID:3819996

  8. Transposition of reversed Ac element ends generates chromosome rearrangements in maize.

    OpenAIRE

    Zhang, Jianbo; Peterson, Thomas

    2004-01-01

    In classical "cut-and-paste" transposition, transposons are excised from donor sites and inserted at new locations. We have identified an alternative pathway in which transposition involves the 5' end of an intact Ac element and the 3' end of a nearby terminally deleted fAc (fractured Ac). The Ac and fAc elements are inserted at the maize p1 locus on chromosome 1s in the same orientation; the adjacent ends of the separate elements are thus in reversed orientation with respect to each other an...

  9. Nonuniform three-phase power lines: resonance effects due to conductor transposition

    Energy Technology Data Exchange (ETDEWEB)

    Brandao Faria, J.A.; Guerreiro das Neves, M.V. [Instituto Superior Tecnico, Lisbon (Portugal). Centro de Electrotecnia Teorica e Medidas Electricas

    2004-02-01

    This paper is concerned with nonuniform power line modelling. It deals with the resonance effects produced by conductor transposition in long overhead three-phase lines. A frequency- domain analysis is conducted showing that the modal propagation parameters characterising the transmission line structure exhibit a repetitive resonant behaviour for frequencies such that the overall transposition cycle length gets close to an integer multiple of one half wavelength. Consideration of these resonance phenomena is of major importance and should be taken into account in a variety of situations, for example, in power line carrier communications and line transient studies. (author)

  10. Circumaortic Left Brachiocephalic Vein: CT Findings

    Energy Technology Data Exchange (ETDEWEB)

    Shim, Mi Suk; Kang, Mi Jin; Kim, Jae Hyung; Cho, Woo Ho; Kim, Soung Hee; Kim, Ji Young; Kim, Soo Hyun; Jun, Woo Sun; Cho, Hyun Sun [Sanggye Paik Hospital, Seoul (Korea, Republic of)

    2010-03-15

    The left brachiocephalic vein usually passes superior and anterior to the aortic arch. In rare cases, this vein follows an anomalous course; for example, a circumaortic left brachiocephalic vein. We present the case of a circumaortic left brachiocephalic vein in a 53-year-old male with lung cancer. A multidetector CT showed that the two branches of the left brachiocephalic vein circumscribed the aortic arch. The anterior branch was above and the posterior branch was below the aortic arch. Both branches drained into the superior vena cava.

  11. [ENDOVENOUS LASER TREATMENT FOR VARICOSE VEINS].

    Science.gov (United States)

    Tezuka, Masahiro; Kanaoka, Yuji; Ohki, Takao

    2015-05-01

    Varicose veins are a common condition attecting approximately 10 million patients in Japan. The main cause of varicose veins is reflux of the saphenous vein, and conventional treatment for several decades was stripping the affected saphenous vein and phlebectomy. Endovenous laser treatment (EVLT) is a less-invasive treatment method in which the saphenous vein is ablated with a laser under local anesthesia. EVLT has been approved by the Japanese Ministry of Health, Labor and Welfare since 2011, and we have performed EVLT on 5,160 legs with saphenous insufficiency with no severe complications including deep vein thrombosis except for one case of arteriovenous fistula. EVLT appears to be a safe, effective treatment option for varicose veins with saphenous insufficiency. PMID:26281654

  12. Deep venous drainage in great cerebral vein (vein of Galen) absence and malformations

    International Nuclear Information System (INIS)

    We report two types of venous patterns associated with great cerebral vein (vein of Galen) absence or unavailability. Developmental venous anomalies or vein of Galen arteriovenous malformations (VGAM) serve as an illustrative material. A diencephalic pattern that collects the thalamo-striate veins into the tentorial sinus is recognized in most VGAM. A telencephalic arrangement connecting the striate veins with the rostral afferents to the basal vein is less frequent. Both patterns reproduce embryonic stages preceeding the development of the great cerebral vein, thus confirming Raybaud's hypothesis that in VGAM the pouch is not the vein of Galen but the medial vein of the prosencephalon. The prognostic value of each pattern can then be appreciated and the therapeutic strategies rationalized; some unexplained complications of the venous approach for non-selected VGAM can thus be avoided. (orig.)

  13. Basil seed gum as a novel stabilizer for structure formation and reduction of ice recrystallization in ice cream

    OpenAIRE

    2013-01-01

    Basil seed gum (BSG), as a novel source of hydrocolloid, was used at two concentrations (0.1% or 0.2%) to stabilize ice cream, and its impact on selected physical and structural properties, especially ice crystal size, was compared to a commercial blend of carboxymethyl cellulose and guar gums (0.1% or 0.2%) and to an unstabilized control. Samples were temperature cycled at subzero temperatures and ice crystal size was measured before and after cycling. There was no significant difference in ...

  14. Nasal-skin-fold transposition flap for upper lip reconstruction in a French bulldog

    Science.gov (United States)

    Benlloch-Gonzalez, Manuel; Lafarge, Stphanie; Bouvy, Bernard; Poncet, Cyrill

    2013-01-01

    Upper-lip reconstruction after mast-cell tumor-resection in a French bulldog was achieved by using a transposition flap from the nasal-skin-fold and an oral mucosal flap. The new technique is an alternative for reconstruction of extensive upper-lip defects in brachycephalic dogs and achieves satisfactory functional and cosmetic results. PMID:24155421

  15. Coupled external fixator and skin flap transposition for treatment of exposed and nonunion bone

    Directory of Open Access Journals (Sweden)

    ZHAO Yong-gang

    2011-02-01

    Full Text Available ?Abstract?Objective: To discuss the effect of coupled external fixator and skin flap transposition on exposed and nonunion bones. Methods: The data of 12 cases of infected nonunion and exposed bone following open fracture treated in our hospital during the period of March 1998 to June 2008 were analysed. There were 10 male patients, 2 female patients, whose age were between 19-52 years and averaged 28 years. There were 10 tibial fractures and 2 femoral fractures. The course of diseases lasted for 12-39 months with the mean period of 19 months. All the cases were treated by the coupled external fixator and skin flap transposition. Results: Primary healing were achieved in 10 cases and delayed healing in 2 cases in whom the tibia was exposed due to soft tissue defect and hence local flap transposition was performed. All the 12 cases had bony union within 6-12 months after operation with the average time of 8 months. They were followed up for 1-3 years and all fractures healed up with good function and no infection recurrence. Conclusion: The coupled external fixator and skin flap transposition therapy have shown optimal effects on treating infected, exposed and nonunion bones. Key words: External fixators; Fracture fixation; Infection; Surgical flap

  16. Late coronary complications after arterial switch operation for transposition of great arteries. Clinical and therapeutic implications

    OpenAIRE

    Agnoletti, G; Bajolle, F; Bonnet, D; SIDI, D; Vouh, P.

    2005-01-01

    The arterial switch operation is the procedure of choice for correction of transposition of the great arteries. Although offering excellent long term results, this procedure is burdened by the risk of acute and subacute coronary occlusion. No guide-lines exist for the management of acute or chronic ischemia in this setting. We briefly review the literature and present the results of our institution.

  17. Effect of Moringa (Moringa oleifera) leaf powder and sweet basil (Ocimum basilicum) leaf paste on sensory and nutritional qualities of beef and ham burgers A preliminary study

    OpenAIRE

    Gabriel Teye; Moses Teye; Bright Mustapha; Alexander Abu

    2013-01-01

    Moringa leaf powder and sweet basil leaf paste are commonly used in local dishes in Ghana for purposes of flavour enhancement and nutrient supplements. This study was conducted to determine the effects of Moringa (Moringa oleifera) leaf powder (MLP) and Sweet basil (Ocimum basilicum) leaf paste (SBLP) on the sensory characteristics and nutritional compositions of beef and hamburgers. MLP and SBLP were incorporated at 0g (Control, T1), 2g, 4g and 6g/kg meat (T2, T3 and T4 respectively) during ...

  18. Vein harvesting and techniques for infrainguinal bypass.

    Science.gov (United States)

    Albck, Anders; Saarinen, Eva; Venermo, Maarit

    2016-04-01

    In order to achieve good long term results after bypass surgery, alongside with good inflow and outflow arteries, the bypass graft material also has an important role. The best patency and limb salvage rates are achieved with autologous vein. If great saphenous vein is not available, acceptable long-term results can be achieved with arm veins and lesser saphenous vein. The quality and size of the vein are important. A small-caliber vein, increased wall thickness, postphlebitic changes and varicosities are associated with a risk of early failure. Preoperative vein mapping with ultrasound reduces readmissions and postoperative surgical site infections. During the mapping, the vein to be used and its main tributaries are marked with a permanent marker pen. To reduce wound complication rates we recommend bridged incisions in vein harvesting. Endoscopic vein harvesting seems to have no benefit compared to open techniques in lower limb bypasses, and has been associated with higher risk of primary patency loss at one year. With deep tunneling of the graft the problems caused by wound infection can be avoided. PMID:26837257

  19. Consrcio de manjerico (Ocimum basilicum L.) e alface sob dois arranjos de plantas / Intercrop of basil (Ocimum basilicum L.) and lettuce under two plant arrangements

    Scientific Electronic Library Online (English)

    M.C., Vieira; A., Carlesso; N.A., Heredia Zrate; W.L.F., Gonalves; L.A., Tabaldi; E., Melgarejo.

    Full Text Available Ocimum basilicum L. (Lamiaceae) comercialmente utilizada como aromatizante ou condimento preparado com suas folhas verdes e aromticas, que podem ser usadas frescas ou secas. O objetivo deste trabalho foi avaliar a produo de biomassa de manjerico sob duas ou trs fileiras no canteiro, consorcia [...] do ou no com alface. O manjerico e a alface foram alocados no campo em experimento conjunto, sendo constitudos cinco tratamentos da seguinte forma: duas fileiras solteiras de manjerico (M2) espaadas de 0,50 m; trs fileiras solteiras de manjerico espaadas de 0,33 m (M3); quatro fileiras solteiras de alface espaadas de 0,25 m (A4); duas fileiras solteiras de manjerico consorciadas com quatro fileiras de alface (M2A4) e trs fileiras de manjerico consorciada com quatro fileiras de alface (M3A4). O delineamento utilizado foi em blocos casualizados, com oito repeties. As plantas de alface foram colhidas aos 48 dias aps o transplantio e as de manjerico, em duas pocas, aos 96 e 113 dias aps o transplantio (DAT). O consrcio no influenciou as reas foliares nem as produes de folhas ou inflorescncias do manjerico nem de cabeas comerciais ou no-comerciais da alface. No entanto, quanto ao arranjo de plantas, na segunda poca de colheita, as plantas de manjerico cultivadas sob duas fileiras tiveram maior rea foliar (2.076,99 cm planta-1) e maior massa fresca de folhas (5.012,53 kg ha-1). Considerando-se que os valores da Razo de rea Equivalente - RAE na primeira e segunda colheita do manjerico foram maiores que 1,0, conclui-se que o consrcio manjerico com alface vivel. Recomenda-se o arranjo de trs fileiras de manjerico alternadas com quatro fileiras de alface, e colheita aos 96 DAT, por ter tido RAE de 2,01. Abstract in english Ocimum basilicum L. (Lamiaceae) is used commercially as flavoring or seasoning that was prepared with its green and aromatic leaves, which can be used fresh or dried. The aim of this work was to evaluate yield of biomass of basil under two or three rows per plot, intercropped or not with lettuce. Ba [...] sil and lettuce were planted at field in joined experiment, which established five treatments: two rows of basil in monocrop system (M2) spaced 0.50 m; three rows of basil in monocrop system spaced 0.33 m (M3); four rows of lettuce in monocrop system spaced 0.25 m (A4); two rows of basil in monocrop system and intercropped with four rows of lettuce (M2A4) and three rows of basil intercropped with four rows of lettuce (M3A4). Used design was randomized blocks with eight replications. Lettuce plants were harvested on 48 days after transplanting and basil plants were harvested in two dates, on 96 and on 113 days after transplanting (DAT). Intercrop did not influence on foliar area neither on yields of leaves of inflorescences of basil neither on commercial or non-commercial lettuce heads. Although, regarding plant arrangement, on second harvest date, basil plants that were cultivated under two rows had the greatest foliar area (2,076.99 cm plant-1) and the greatest fresh masses of leaves (5,012.53 kg ha-1). Considering that the values of Equivalent Area Ration in the first and the second harvest of basil were higher than 1.0. It was concluded that to intercrop basil with lettuce is viable. It is recommended the arrangement of three rows of basil alternated with four rows of lettuce, with harvested at 96 DAT, because it had EAR of 2.01.

  20. Minority Report: an analysis of the transposition of Philip K. Dicks short story to cinema

    Directory of Open Access Journals (Sweden)

    Daniel Iturvides Dutra

    2010-11-01

    Full Text Available This article aims to make a comparative analysis of Philip K. Dicks short story Minority Report with the homonymous film transposition made by director Steven Spielberg. The goal of the analysis is to understand how film transpositions are influenced by the ideological and economical aspects of the movie industry, which includes the movie audience demands, the use of the movie star image, the ideology related to this image, and how all these elements are reflected in the movie Minority Report. Therefore, we will analyze how all these aspects of the movie industry affected the film transposition of Philip K. Dicks short story.

  1. Endovenous laser therapy for varicose vein

    Directory of Open Access Journals (Sweden)

    Erwin Mulia

    2013-05-01

    Full Text Available Laser has become a useful technology in treating venous incompetence especially superficial venous disease. Introduction of endovenous thermal ablation through endovenous laser therapy helped by duplex ultrasound guidance has provided an alternative for traditional saphenous vein stripping. High success rate, minor complications, and minimally invasive technique provide the advantages over traditional treatment. In this case illustrated, the endovenous laser therapy used for great saphenous varicose vein. Yet, future development in endovenous laser therapy is still needed and only long term follow-up and uniform reporting standards will provide the answers. (Med J Indones. 2013;22:117-20Keywords:Endovenous laser theraphy, great saphenous vein, varicose vein

  2. Effect of Diameter of Saphenous Vein on Stump Length after Radiofrequency Ablation for Varicose Vein

    OpenAIRE

    Kim, Jusung; Cho, Sungsin; JOH, JIN HYUN; Ahn, Hyung-Joon; Park, Ho-Chul

    2015-01-01

    Purpose: Radiofrequency ablation (RFA) has gained popularity for treatment of varicose veins. The diameter of the saphenous vein should be considered before RFA because occlusion of the vein may differ depending on its diameter. Until now, however, there have been few data about the correlation between the diameter of the saphenous vein and the stump length after RFA. The purpose of our study was to investigate its correlation. Materials and Methods: A retrospective review was performed from ...

  3. Identification and quantification of a major anti-oxidant and anti-inflammatory phenolic compound found in basil, lemon, thyme, mint, oregano, rosemary, sage, and thyme

    Science.gov (United States)

    Basil, lemon thyme, mint, oregano, rosemary, sage, and thyme are in the mint family of plants that are used as culinary herbs world-wide. These herbs contain phenolic compounds that are believed to have strong antioxidant and anti-inflammatory activities. Therefore, the major phenolic compounds fr...

  4. Formulation and in Vivo Evaluation for Anti-Aging Effects of an Emulsion Containing Basil Extract Using non- Invasive Biophysical Techniques

    Directory of Open Access Journals (Sweden)

    N. Akhtar

    2011-12-01

    Full Text Available Background and the purpose of study: Skin aging is a complex process induced by constant exposure to ultraviolet (UV irradiation and damages human skin. UV generates reactive oxygen species leading to collagen deficiency and eventually skin wrinkling. Basil contains a number of phenolics and favonoids which possess antioxidant properties. The aim of this study was to formulate and investigate the antiaging potential of a cream containing Basil extract. Methods: A single blinded study was conducted using non-invasive methods. Formulation containing 3% of the concentrated extract of Basil was developed by entrapping in the inner aqueous phase of w/o emulsion and base contained no extract. Both creams were stored at different storage conditions of 8C, 25C, 40C and 40C+ 75% relative humidity to predict their stabilities. The formulation and base were evaluated for their effects on various skin parameters i.e., moisture and trans epidermal water loss (TEWL, volume, energy and surface evaluation of the living skin (SELS. Results: Significant effects (p?0.05 were observed for both creams in the case of TEWL. The base showed insignificant (p?0.05 while formulation showed significant effects on skin moisture. Volume, SELS SEr (skin roughness, SEsc (skin scaliness, SEsm (skin smoothness, SEw (skin wrinkles parameter showed significant decline while texture parameter of Energy' showed significant increase. Conclusion: The results statistically indicated that the active formulation containg extract of Basil exert antiaging effects when applied topically.

  5. Idiopathic Bilateral External Jugular Vein Thrombosis

    Science.gov (United States)

    Hindi, Zakaria; Fadel, Ehab

    2015-01-01

    Patient: Male, 21 Final Diagnosis: Idiopathic bilateral external jugular vein thrombosis Symptoms: Face engorgement neck swelling Medication: Clinical Procedure: None Specialty: Hematology Objective: Unknown ethiology Background: Vein thrombosis is mainly determined by 3 factors, which constitute a triad called Virchows triad: hypercoagulability, stasis, and endothelial injury. Venous thrombosis commonly occurs in the lower extremities since most of the blood resides there and flows against gravity. The veins of the lower extremities are dependent on intact valves and fully functional leg muscles. However, in case of valvular incompetency or muscular weakness, thrombosis and blood stasis will occur as a result. In contrast, the veins of the neck, specially the jugulars, have distensible walls which allow flexibility during respiration. In addition, the blood directly flows downward towards the heart. Nevertheless, many case reports mentioned the thrombosis of internal jugular veins and external jugular veins with identified risk factors. Jugular vein thrombosis has previously been associated in the literature with a variety of medical conditions, including malignancy. Case Report: This report is of a case of idiopathic bilateral external jugular vein thrombosis in a 21 year-old male construction worker of Southeast Asian origin with no previous medical history who presented with bilateral facial puffiness of gradual onset over 1 month. Doppler ultrasound and computed tomography were used in the diagnosis. Further work-up showed no evidence of infection or neoplasia. The patient was eventually discharged on warfarin. The patient was assessed after 6 months and his symptoms had resolved completely. Conclusions: Bilateral idiopathic external jugular veins thrombosis is extremely rare and can be an indicator of early malignancy or hidden infection. While previous reports in the literature have associated jugular vein thrombosis with malignancy, the present case shows that external jugular vein thrombosis can also be found in persons without malignancy. PMID:26301793

  6. New domino transposition/intramolecular Diels-Alder reaction in monocyclic allenols: a general strategy for tricyclic compounds.

    Science.gov (United States)

    Alcaide, Benito; Almendros, Pedro; Aragoncillo, Cristina; Redondo, Mara C

    2002-07-21

    A novel and direct synthetic strategy to prepare fused tricycles has been developed from monocyclic allenols, masked functionalized dienes, which underwent a domino allenol transposition/intramolecular Diels-Alder reaction. PMID:12189849

  7. Angioplasty of communicating veins to the brachial vein in haemodialysis patients with obliterated superficial veins of the upper arm

    International Nuclear Information System (INIS)

    Aim: To evaluate the outcomes of angioplasty of the communicating veins when superficial veins of the upper arm were almost totally obliterated in haemodialysis patients. Materials and methods: Twenty-one angioplasties of the communicating veins that were performed for failing haemodialysis fistulas in patients with almost totally obliterated superficial veins of the upper arm from December 2006 to March 2011 were retrospectively reviewed. Fistulas were of the following types: native radiocephalic fistulas (n=20) and radio-antecubital fistulas (n=1). All angioplasties were performed using 58mm conventional balloons. Cutting balloon angioplasty was additionally performed in five patients. The primary, secondary, and target lesion patency rate was calculated using KaplanMeier analysis. Results: The communicating vein was located in the antecubital fossa. Technical and clinical success rates were 100% and 95.2%, respectively. Follow-up duration was 152 months (mean 20 months). The primary patency rates were 76%, 43%, and 29% at 3, 6, and 12 months, respectively, and target lesion patency rates were 81%, 62%, and 43% at 3, 6, and 12 months, respectively. The secondary patency rates were 81%, 76%, and 57% at 3, 6, and 12 months,respectively. There were no major or minor complications. Conclusion: Angioplasty of the communicating vein is effective in restoring function in failing haemodialysis fistula in patients with obliterated superficial veins of the upper arm. - Highlights: Lack of patent superficial veins of upper arm is challenging condition for endovascular recanalization in haemodialysis patients. This paper is to introduce angioplasty technique of communicating veins as an alternative pathway in the setting of totally obliterated superficial veins of upper arms. The technical and clinical success rate of this technique were 100% and 95.2% and there was no major or minor complication

  8. Comparison of the Complications of Central Vein Catheters and Arterio-Venous Fistulae in Children on Chronic Hemodialysis

    Directory of Open Access Journals (Sweden)

    F Ghane Sherbaf

    2006-08-01

    Full Text Available Background: Complications related to vascular access are among the most important causes of morbidity in children chronically on hemodialysis. This study was designed to determine the prevalence of the central vein catheters (CVC and arterio-venous fistulae (AVF in children on chronic hemodialysis. Methods: This study includes 68 children who have been treated with hemodialysis in Dr. Sheikh Hospital, Mashhad, Iran, during 2000-2005. Physical examination, clinical and paraclinical findings were recorded in special charts. Findings: Out of 68 patients treated with hemodialysis 29 (42.6% were female and 39 (57.3% male. The average duration time of hemodialysis was 15.8 months. Before performing AVF, the central venous catheters were placed in subclavian vein in 28 patients (41.1% and internal jugular vein in 26 patients (38.2%. The fistula placed was radio-cephalic in 29 (42.6% and brachio-basilic in 33 children (48.5%. 48 patients (77.4% underwent only one surgery for AVF. The most frequent complications of central venous catheters were: catheter infection (48.1%, inadvertent extraction of the catheters (7.4%, cardiac arrhythmia (1.8% and hemothorax (1.8%. The most common complications of AVF in decreasing order of frequency were: non-functional fistula due to thrombosis or hematoma (20.9%, infection (12.9%, aneurysms (11.2% and ischemia of the hand presenting as paresthesia, dysesthesia and pain (11.2%. Overall, 10 (18.5% patients were hospitalized due to the complications of CVC and 20 (29.4% for the complications of AVF. Conclusion: The most frequently observed complications of CVC and AVF were catheter infection and non-functional fistula. The risk factors for AVF dysfunction were young age, hypotension and hemodialysis without administration of heparin.

  9. Normal distal pulmonary vein anatomy.

    Science.gov (United States)

    Klimek-Piotrowska, Wies?awa; Ho?da, Mateusz K; Pi?tek, Katarzyna; Koziej, Mateusz; Ho?da, Jakub

    2016-01-01

    Background. It is well known that the pulmonary veins (PVs), especially their myocardial sleeves play a critical role in the initiation and maintenance of atrial fibrillation. Understanding the PV anatomy is crucial for the safety and efficacy of all procedures performed on PVs. The aim of this study was to present normal distal PV anatomy and to create a juxtaposition of all PV ostium variants. Methods. A total of 130 randomly selected autopsied adult human hearts (Caucasian) were examined. The number of PVs ostia was evaluated and their diameter was measured. The ostium-to-last-tributary distance and macroscopic presence of myocardial sleeves were also evaluated. Results. Five hundred forty-one PV ostia were identified. Four classical PV ostia patterns (two left and two right PVs) were observed in 70.8% of all cases. The most common variant was the classical pattern with additional middle right PV (19.2%), followed by the common ostium for the left superior and the inferior PVs (4.44%). Mean diameters of PV ostia (for the classical pattern) were: left superior = 13.8 2.9 mm; left inferior = 13.3 3.4 mm; right superior = 14.3 2.9 mm; right inferior = 13.7 3.3 mm. When present, the additional middle right PV ostium had the smallest PV ostium diameter in the heart (8.2 4.1 mm). The mean ostium-to-last-tributary (closest to the atrium) distances were: left superior = 15.1 4.6 mm; left inferior = 13.5 4.0 mm; right superior = 11.8 4.0 mm; right inferior = 11.0 3.7 mm. There were no statistically significant differences between sexes in ostia diameters and ostium-to-last-tributary distances. Conclusion. Only 71% of the cases have four standard pulmonary veins. The middle right pulmonary vein is present in almost 20% of patients. Presented data can provide useful information for the clinicians during interventional procedures or radiologic examinations of PVs. PMID:26793429

  10. Acupuncture Points of the Horses Distal Thoracic Limb: A Neuroanatomic Approach to the Transposition of Traditional Points

    OpenAIRE

    Lisa S. Lancaster; Robert M. Bowker

    2012-01-01

    Veterinary acupuncture charts were developed based on the concept of transpositional points whereby human acupuncture maps were adapted to animal anatomy. Transpositional acupuncture points have traditionally been placed in specific locations around the horses coronet and distal limb believed to be the closest approximation to the human distal limb points. Because the horse has a single digit and lacks several structures analogous to the human hand and foot, precisely transposing all of the ...

  11. Spontaneous rupture of a saphenous vein graft

    OpenAIRE

    Davey, P.; Gwilt, D; Forfar, C

    1999-01-01

    We present a case of spontaneous rupture of a right coronary bypass vein graft in a 57-year-old woman 10years after coronary by-pass surgery. Although rare, this diagnosis should be considered in such patients presenting with appropriate symptoms.???Keywords: coronary artery bypass graft; false aneurysm; saphenous vein graft

  12. A newborn liver mass that never existed: a somber reminder of embryonic ties between umbilical vein and portal venous system

    Directory of Open Access Journals (Sweden)

    Haafiz A

    2011-12-01

    Full Text Available Allah Haafiz1, Jonathan L Williams2, Joel M Andres1, Don A Novak11Pediatric Gastroenterology, Hepatology; 2Department of Pediatric Radiology, University of Florida College of Medicine, Gainesville, FL, USAAbstract: A 6-day-old, known to have transposition of the great vessels, received care in the neonatal intensive care unit at a tertiary care center. A computed tomography scan was performed for abdominal distention and upper gastrointestinal bleeding, which revealed a mass lesion in the left liver lobe. Analysis of antecedent events and the clinical and laboratory course uncovered an iatrogenic etiology and pathogenesis of the lesion. As the nature of the lesion was clarified, no specific therapy was required. This case is presented to show a serious yet preventable complication of a commonly performed procedure.Keywords: portal vein thrombosis, liver mass, umbilical venous catheter

  13. Identification of a unique 2-oxoglutarate-dependent flavone 7-O-demethylase completes the elucidation of the lipophilic flavone network in basil.

    Science.gov (United States)

    Berim, Anna; Kim, Min-Jeong; Gang, David R

    2015-01-01

    Small molecule demethylation is considered unusual in plants. Of the studied instances, the N-demethylation of nicotine is catalyzed by a Cyt P450 monooxygenase, while the O-dealkylation of alkaloids in Papaver somniferum is mediated by 2-oxoglutarate-dependent dioxygenases (2-ODDs). This report describes a 2-ODD regiospecifically catalyzing the 7-O-demethylation of methoxylated flavones in peltate trichomes of sweet basil (Ocimum basilicum L.). Three candidate 2-ODDs were identified in the basil trichome transcriptome database. Only the candidate designated ObF7ODM1 was found to be active with and highly specific for the proposed natural substrates, gardenin B and 8-hydroxysalvigenin. Of the characterized 2-ODDs, ObF7ODM1 is most closely related to O-demethylases from Papaver. The demethylase activity in trichomes from four basil chemotypes matches well with the abundance of ObF7ODM1 peptides and transcripts in the same trichome preparations. Treatment of basil plants with a 2-ODD inhibitor prohexadione-calcium significantly reduced the accumulation of 7-O-demethylated flavone nevadensin, confirming the involvement of a 2-ODD in its formation. Notably, the full-length open reading frame of ObF7ODM1 contains a second in-frame AUG codon 57 nucleotides downstream of the first translation initiation codon. Both AUG codons are recognized by bacterial translation machinery during heterologous gene expression. The N-truncated ObF7ODM1 is nearly inactive. The N-terminus essential for activity is unique to ObF7ODM1 and does not align with the sequences of other 2-ODDs. Further studies will reveal whether alternative translation initiation plays a role in regulating the O-demethylase activity in planta. Molecular identification of the flavone 7-O-demethylase completes the biochemical elucidation of the lipophilic flavone network in basil. PMID:25378691

  14. Guide Wire Migration During Femoral Vein Catheterization

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Khatami

    2010-09-01

    Full Text Available Central vein catheterization is a routine and relatively safe procedure in critically ill patients. Complications with this procedure depend to the site of catheterization and the skill of the operator. In addition to the common complications with femoral vein catheterization there are some rare usually preventable side effects related to guide wire and catheter. In our patient who underwent femoral catheterization for acute hemodialysis, we report migration of guide wire through the systemic circulation from the femoral vein to the jugular vein. This is a very rare complication that is a human error and is totally preventable by doing the procedure by a skilled doctor and considering the standards described for central vein catheter insertion.

  15. TAL effectors mediate high-efficiency transposition of the piggyBac transposon in silkworm Bombyx mori L.

    Science.gov (United States)

    Ye, Lupeng; You, Zhengying; Qian, Qiujie; Zhang, Yuyu; Che, Jiaqian; Song, Jia; Zhong, Boxiong

    2015-01-01

    The piggyBac (PB) transposon is one of the most useful transposable elements, and has been successfully used for genetic manipulation in more than a dozen species. However, the efficiency of PB-mediated transposition is still insufficient for many purposes. Here, we present a strategy to enhance transposition efficiency using a fusion of transcription activator-like effector (TALE) and the PB transposase (PBase). The results demonstrate that the TALE-PBase fusion protein which is engineered in this study can produce a significantly improved stable transposition efficiency of up to 63.9%, which is at least 7 times higher than the current transposition efficiency in silkworm. Moreover, the average number of transgene-positive individuals increased up to 5.7-fold, with each positive brood containing an average of 18.1 transgenic silkworms. Finally, we demonstrate that TALE-PBase fusion-mediated PB transposition presents a new insertional preference compared with original insertional preference. This method shows a great potential and value for insertional therapy of many genetic diseases. In conclusion, this new and powerful transposition technology will efficiently promote genetic manipulation studies in both invertebrates and vertebrates. PMID:26608076

  16. Alternative Ac/Ds transposition induces major chromosomal rearrangements in maize.

    Science.gov (United States)

    Zhang, Jianbo; Yu, Chuanhe; Pulletikurti, Vinay; Lamb, Jonathan; Danilova, Tatiana; Weber, David F; Birchler, James; Peterson, Thomas

    2009-03-15

    Barbara McClintock reported that the Ac/Ds transposable element system can generate major chromosomal rearrangements (MCRs), but the underlying mechanism has not been determined. Here, we identified a series of chromosome rearrangements derived from maize lines containing pairs of closely linked Ac transposable element termini. Molecular and cytogenetic analyses showed that the MCRs in these lines comprised 17 reciprocal translocations and two large inversions. The breakpoints of all 19 MCRs are delineated by Ac termini and characteristic 8-base-pair target site duplications, indicating that the MCRs were generated by precise transposition reactions involving the Ac termini of two closely linked elements. This alternative transposition mechanism may have contributed to chromosome evolution and may also occur during V(D)J recombination resulting in oncogenic translocations. PMID:19299561

  17. Analysis of the Superconducting Cable Transposition in Low Resistance CICC Joint

    Science.gov (United States)

    Zhu, You-hua

    2000-08-01

    In an integrated structure low resistance CICC joint, current is conducted by outer cable strands coming into touch with the conductive Cu sole. So it is an important condition for satisfying joint performance that each strand of the cable inside the joint is able to come to the outermost by transposition. This paper presents analysis, calculation and figures for the strand transposition. According to the twist procedures of the superconducting cable, the author computed the actual pitch of each stage cable, consecutively computed the projection of each stage cable on the axis of the cable (z axis) and the corresponding twist angle as the z coordinate changes, which is then drawn by AutoCAD. From the results shown in the figures, the minimal cable length, which enables each strand to transpose almost equally to the outermost of the cable in such a length, can be determined as the optimal joint length.

  18. Efficiency of n-octyl-acetate, 2-heptanone and citronellal in repelling bees from basil (Ocimum sellowii - Labiatae

    Directory of Open Access Journals (Sweden)

    Darclet Teresinha Malerbo-Souza

    2004-03-01

    Full Text Available The objective of this study was to test repellent substances for honey bees, Apis mellifera, for basil, Ocimum sellowii, and to study the most frequent insects in this crop as well as its behaviors. The frequency of honey bees did not decrease with the application of n.octyl.acetate, citronellal and 2.heptanone, used as repellents, in the concentrations 2.5, 5.0, 7.5 and 10.0% diluted in water. However, when the products (20% were diluted in water (75% and glycerine (5% were effective in repelling those bees of the basil flowers for a period of 20 minutes. The flower lasted, on average, 30 h from the bud phase until the flower withered. The flowers number opened by inflorescence was, on average, 5.65 flowers, and the inflorescence presented, on average, 160 flowers-buds. The basil was visited mainly for the honey bee (98.0%, followed by Augochloropsis electra bee - Halictidae (2.0% and visits sporadics of Diptera and Lepidoptera, collected only nectar. The honey bee frequency increased during the day to 14:00, decreasing soon after, accompanying the curve of the temperature sets registered in the experiment days.O objetivo do experimento foi estudar a polinizao em manjerico (Ocimum sellowii, a fim de verificar sua atratividade para as abelhas Apis mellifera, os insetos mais freqentes, bem como seus comportamentos e testar substncias repelentes para as abelhas A. mellifera. A flor durou, em mdia, 30 horas, desde sua abertura at o murchamento. O nmero de flores abertas por inflorescncia foi, em mdia, 5,65 flores, sendo que a inflorescncia possua, em mdia, 160 botes florais. O manjerico foi visitado quase que exclusivamente pela abelha A. mellifera africanizada (98,0%, seguida pela abelha Augochloropsis electra-Halictidae (2,0% e visitas espordicas de dpteros e lepidpteros, sendo que todos coletavam apenas nctar. A freqncia da abelha africanizada aumentou no decorrer do dia at s 14 horas, diminuindo em seguida, acompanhando a curva da temperatura ambiente registrada nos dias do experimento. As abelhas africanizadas demoraram de 1 a 3 segundos em cada flor. A freqncia das abelhas africanizadas no diminuiu com a aplicao dos produtos n.octyl.acetato, citronellal e 2.heptanona, usados como repelentes, nas concentraes 2,5, 5,0, 7,5 e 10,0%, diludos apenas em gua. Entretanto, quando os produtos (20% foram diludos em gua (75% e glicerina (5%, foram efetivos em repelir essas abelhas das flores de manjerico, por um perodo de 20 minutos.

  19. Correction of incomplete penoscrotal transposition by a modified Glenn-Anderson technique

    Directory of Open Access Journals (Sweden)

    Saleh Amin

    2010-01-01

    Full Text Available Purpose: Penoscrotal transposition may be partial or complete, resulting in variable degrees of positional exchanges between the penis and the scrotum. Repairs of penoscrotal transposition rely on the creation of rotational flaps to mobilise the scrotum downwards or transpose the penis to a neo hole created in the skin of the mons-pubis. All known techniques result in complete circular incision around the root of the penis, resulting in severe and massive oedema of the penile skin, which delays correction of the associated hypospadias and increases the incidence of complications, as the skin vascularity and lymphatics are impaired by the designed incision. A new design to prevent this post-operative oedema, allowing early correction of the associated hypospadias and lowering the incidence of possible complications, had been used, whose results were compared with other methods of correction. Materials and Methods: Ten patients with incomplete penoscrotal transposition had been corrected by designing rotational flaps that push the scrotum back while the penile skin remains attached by small strip to the skin of the mons-pubis. Results : All patients showed an excellent cosmetic outcome. There was minimal post-operative oedema and no vascular compromise to the penile or scrotal skin. Correction of associated hypospadias can be performed in the same sitting or in another sitting, without or with minimal complications. Conclusion: This modification, which maintains the penile skin connected to the skin of the lower abdomen by a small strip of skin during correction of penoscrotal transposition, prevents post-operative oedema and improves healing with excellent cosmetic appearance, allows one-stage repair with minimal complications and reduce post-operative complications such as urinary fistula and flap necrosis.

  20. Genome Rearrangements in Maize Induced by Alternative Transposition of Reversed Ac/Ds Termini

    OpenAIRE

    Yu, Chuanhe; Zhang, Jianbo; Peterson, Thomas

    2011-01-01

    Alternative transposition can induce genome rearrangements, including deletions, inverted duplications, inversions, and translocations. To investigate the types and frequency of the rearrangements elicited by a pair of reversed Ac/Ds termini, we isolated and analyzed 100 new mutant alleles derived from two parental alleles that both contain an intact Ac and a fractured Ac (fAc) structure at the maize p1 locus. Mutants were characterized by PCR and sequencing; the results show that nearly 90% ...

  1. The Frog Prince: a reconstructed transposon from Rana pipiens with high transpositional activity in vertebrate cells

    OpenAIRE

    Miskey, C.; Izsvak, Z.; Plasterk, R H; Ivics, Z.

    2003-01-01

    Members of the Tc1/mariner superfamily of transposable elements isolated from vertebrates are transpositionally inactive due to the accumulation of mutations in their transposase genes. A novel open reading frame-trapping method was used to isolate uninterrupted transposase coding regions from the genome of the frog species Rana pipiens. The isolated clones were approximately 90% identical to a predicted transposase gene sequence from Xenopus laevis, but contained an unpredicted, approximatel...

  2. Survival after balloon atrial septostomy for complete transposition of great arteries.

    OpenAIRE

    Mok, Q.; Darvell, F; Mattos, S; SMITH, T.; Fayers, P.; Rigby, M. L.; Shinebourne, E. A.

    1987-01-01

    Mortality before surgery must be taken into account when comparing the surgical mortality of atrial redirection procedures (Mustard's or Senning's operation) and the arterial switch operation for patients with complete transposition. This is because the switch operation is usually performed within the neonatal period or early infancy but Mustard's or Senning's operation usually after 4 months of age. The outcome of balloon atrial septostomy was therefore assessed in all 102 infants with trans...

  3. Radionuclide techniques in children after correction of transposition of great arteries

    International Nuclear Information System (INIS)

    A group of children with Transposition of the Great Arteries (TGA) has been evaluated by means of Gated Blood Pool Scintigraphy (GBPS) and Tl 201 imaging (TMI). The study confirms and prospects the validity of Radionuclide techniques in providing a non invasive, relatively simple and reliable assessment of right ventricular (RV) and left ventricular (LV) performance and myocardial perfusion in patients with TGA in post-operative and more in pre-operative period

  4. Ty3 Transposes in Mating Populations of Yeast: A Novel Transposition Assay for Ty3

    OpenAIRE

    Kinsey, P. T.; Sandmeyer, S. B.

    1995-01-01

    Ty3 is a retrotransposon of Saccharomyces cerevisiae that integrates just upstream of the transcription initiation site of genes transcribed by RNA polymerase III. Ty3 transcription is pheromone-inducible in haploid cells and is mating-type regulated in diploid cells. The specificity of Ty3 integration was exploited in the design of a novel target into which transposition of Ty3 elements could be selected. The target plasmid contains divergently oriented tRNA genes with 19 base pairs separati...

  5. Mechanistic factors and innate immune components in vein graft disease

    OpenAIRE

    Vries, Margreet Renate de

    2014-01-01

    Vein graft surgery to treat occlusive arterial disease is a common applied procedure. Each year more than two million vein graft surgeries are performed worldwide. The major drawback of vein grafting is that within 10 years after vein graft surgery 50-60 % of the vein grafts suffer from patency loss due to thrombosis, intimal hyperplasia formation, accelerated atherosclerosis and rupture. Endogenous factors orchestrate the development and failure of vein grafts. Investigating the role of end...

  6. A Nonlinear Thin-Wall Model for Vein Buckling

    OpenAIRE

    Lee, Avione Y.; Han, Hai-Chao

    2010-01-01

    Tortuous or twisted veins are often seen in the retina, cerebrum, and legs (varicose veins) of one-third of the aged population, but the underlying mechanisms are poorly understood. While the collapse of veins under external pressure has been well documented, the bent buckling of long vein segments has not been studied. The objectives of this study were to develop a biomechanical model of vein buckling under internal pressure and to predict the critical pressure. Veins were modeled as thin-wa...

  7. Effect of brushwood transposition on the leaf litter arthropod fauna in a cerrado area

    Directory of Open Access Journals (Sweden)

    Paula Cristina Benetton Verglio

    2013-10-01

    Full Text Available The results of ecological restoration techniques can be monitored through biological indicators of soil quality such as the leaf litter arthropod fauna. This study aimed to determine the immediate effect of brushwood transposition transferred from an area of native vegetation to a disturbed area, on the leaf litter arthropod fauna in a degraded cerrado area. The arthropod fauna of four areas was compared: a degraded area with signal grass, two experimental brushwood transposition areas, with and without castor oil plants, and an area of native cerrado. In total, 7,660 individuals belonging to 23 taxa were sampled. Acari and Collembola were the most abundant taxa in all studied areas, followed by Coleoptera, Diptera, Hemiptera, Hymenoptera, and Symphyla. The brushwood transposition area without castor oil plants had the lowest abundance and dominance and the highest diversity of all areas, providing evidence of changes in the soil community. Conversely, the results showed that the presence of castor oil plants hampered early succession, negatively affecting ecological restoration in this area.

  8. Transposition and Didactic Mediation at Fractions Teaching Transposio e Mediao Didtica no Ensino de Fraes

    Directory of Open Access Journals (Sweden)

    Diogo SantAnna

    2008-02-01

    Full Text Available In the context of collaborative research focusing on the practices of fifth grade teachers, the present study presents an analysis of some curricular documents and textbooks on one specific subject: fractions. Considering the specificity of school knowledge, we aim to identify the objectives and the approaches to teaching this subject as indicated in curricular documents. Using the notions of didactic transposition and didactic mediation, we have identified some curricular instances that influence the transposition processes, seeking to exemplify their complexity. Keywords: Collaborative Research. Fractions. Didactic Transposition.No contexto de uma pesquisa colaborativa com foco principal na anlise de prticas docentes de professores de matemtica na quinta srie escolar, apresentamos no presente uma anlise de documentos curriculares e de textos didticos atuais, centrada em um objeto de ensino, as fraes. A partir da considerao da especificidade do conhecimento escolar, visamos identificar os objetivos didticos e as abordagens indicadas nos textos curriculares em relao a este objeto de ensino. Atravs das noes de transposio e de mediao didtica, identificamos as instncias curriculares presentes nos processos de transposio, procurando desta maneira exemplificar a complexidade de tais processos. Palavras-chave: Pesquisa Colaborativa. Ensino de Fraes. Transposio Didtica.

  9. Genome rearrangements in maize induced by alternative transposition of reversed ac/ds termini.

    Science.gov (United States)

    Yu, Chuanhe; Zhang, Jianbo; Peterson, Thomas

    2011-05-01

    Alternative transposition can induce genome rearrangements, including deletions, inverted duplications, inversions, and translocations. To investigate the types and frequency of the rearrangements elicited by a pair of reversed Ac/Ds termini, we isolated and analyzed 100 new mutant alleles derived from two parental alleles that both contain an intact Ac and a fractured Ac (fAc) structure at the maize p1 locus. Mutants were characterized by PCR and sequencing; the results show that nearly 90% (89/100) of the mutant alleles represent structural rearrangements including deletions, inversions, translocations, or rearrangement of the intertransposon sequence (ITS). Among 37 deletions obtained, 20 extend into the external flanking sequences, while 17 delete portions of the intertransposon sequence. Interestingly, one deletion allele that contains only a single nucleotide between the retained Ac and fAc termini is not competent for further alternative transposition events. We propose a new model for the formation of intertransposon deletions through insertion of reversed transposon termini into sister-chromatid sequences. These results document the types and frequencies of genome rearrangements induced by alternative transposition of reversed Ac/Ds termini in maize. PMID:21339479

  10. Transposon display supports transpositional activity of elements in species of the saltans group of Drosophila

    Indian Academy of Sciences (India)

    Nathalia De Setta; Ana Paula Pimentel Costa; Fabrício Ramon Lopes; Marie-Anne Van Sluys; Cláudia Márcia Aparecida Carareto

    2007-01-01

    Mobilization of two element subfamilies (canonical and O-type) from Drosophila sturtevanti and D. saltans was evaluated for copy number and transposition activity using the transposon display (TD) technique. Pairwise distances between strains regarding the insertion polymorphism profile were estimated. Amplification of the element based on copy number estimates was highly variable among the strains (D. sturtevanti, canonical 20.11, O-type 9.00; D. saltans, canonical 16.4, O-type 12.60 insertions, on average). The larger values obtained by TD compared to our previous data by Southern blotting support the higher sensitivity of TD over Southern analysis for estimating transposable element copy numbers. The higher numbers of the canonical element and the greater divergence in its distribution within the genome of D. sturtevanti (24.8%) compared to the O-type (16.7%), as well as the greater divergence in the distribution of the canonical P element, between the D. sturtevanti (24.8%) and the D. saltans (18.3%) strains, suggest that the canonical element occupies more sites within the D. sturtevanti genome, most probably due to recent transposition activity. These data corroborate the hypothesis that the O-type is the oldest subfamily of elements in the saltans group and suggest that the canonical element is or has been transpositionally active until more recently in D. sturtevanti.

  11. Superior Oblique Anterior Transposition with Horizontal Recti Recession-Resection for Total Third-Nerve Palsy

    Science.gov (United States)

    Eraslan, Muhsin; Cerman, Eren; Onal, Sumru; Ogut, Mehdi Suha

    2015-01-01

    Aims. To report the results of lateral rectus muscle recession, medial rectus muscle resection, and superior oblique muscle transposition in the restoration and maintenance of ocular alignment in primary position for patients with total third-nerve palsy. Methods. The medical records of patients who underwent surgery between March 2007 and September 2011 for total third-nerve palsy were reviewed. All patients underwent a preoperative assessment, including a detailed ophthalmologic examination. Results. A total of 6 patients (age range, 1445 years) were included. The median preoperative horizontal deviation was 67.5 Prism Diopter (PD) (interquartile range [IQR] 57.570) and vertical deviation was 13.5 PD (IQR 1020). The median postoperative horizontal residual exodeviation was 8.0 PD (IQR 116), and the vertical deviation was 0 PD (IQR 04). The median correction of hypotropia following superior oblique transposition was 13.5 2.9 PD (range, 1016). All cases were vertically aligned within 5?PD. Four of the six cases were aligned within 10?PD of the horizontal deviation. Adduction and head posture were improved in all patients. All patients gained new area of binocular single vision in the primary position after the operation. Conclusion. Lateral rectus recession, medial rectus resection, and superior oblique transposition may be used to achieve satisfactory cosmetic and functional results in total third-nerve palsy. PMID:26640703

  12. Recontextualizao da simulao clnica em enfermagem baseada em Basil Bernstein: semiologia da prtica pedaggica / Recontextualization of Nursing clinical simulation based on Basil Bernstein: semiology of pedagogical practice / Recontextualizacin de la simulacin de enfermera clnica basada en Basil Bernstein: la semiologa de la prctica pedaggica

    Scientific Electronic Library Online (English)

    Mateus Casanova dos, Santos; Maria Ceclia Lorea, Leite; Rita Maria, Heck.

    2010-12-01

    Full Text Available O presente artigo um estudo de caso investigativo de carter participante e descritivo, a partir da vivncia pedaggica no disparador de aprendizagem Simulao em Enfermagem, do segundo semestre do primeiro ciclo da graduao da Faculdade de Enfermagem (FEn) da Universidade Federal de Pelotas (UFP [...] el), onde se desenvolve a simulao clnica de semiologia e semiotcnica em Enfermagem. O objetivo estudar a recontextualizao da prtica pedaggica da Simulao com base em teorizaes do socilogo da educao Basil Bernstein, contribuindo para o processo de aperfeioamento do planejamento de ensino e, especialmente, da avaliao deste disparador de aprendizagem. A partir das reflexes deste estudo, observa-se a teorizao de Bernstein como uma potente ferramenta semiolgica das prticas pedaggicas, a qual contribui para o planejamento e anlise do dispositivo pedaggico curricular. Abstract in spanish Este artculo es un caso de estudio de carcter descriptivo y de investigacin participante, desde la experiencia educativa de aprendizaje en el gatillo Simulacin en Enfermera, de la segunda mitad del primer ciclo de la Escuela Enfermera (FEN) de la Universidade Federal de Pelotas (UFPel) donde s [...] e desarrolla la simulacin de la semiologa clnica y la semitica en Enfermera. El objetivo es estudiar la recontextualizacin de la prctica pedaggica de teoras basadas en la simulacin del socilogo de la educacin Basil Bernstein, contribuyendo al proceso de mejora de la educacin, planificacin y aprendizaje, especialmente la evaluacin de gatillo. De las reflexiones de este estudio, existe la teora de Bernstein como una poderosa herramienta de semitica prcticas pedaggicas, lo que contribuye a la planificacin y el anlisis de dispositivos educativos curriculares. Abstract in english This article is a case study of investigative and descriptive participant character, from the educational experience of learning in the trigger Simulation in Nursing, the second half of the first cycle of Faculdade de Enfermagem (FEN), Universidade Federal de Pelotas (UFPel) where he develops simula [...] tion of clinical semiology and semiotics in Nursing. The goal is to study the recontextualization of pedagogic practice of simulation-based theories of the sociologist of education Basil Bernstein, contributing to the improvement process of planning education, and especially the evaluation of trigger learning. From reflections on this study, there is the theory of Bernstein as a powerful tool of semiotic pedagogical practices, which contributes to the planning and analysis of curricular educational device.

  13. Recontextualizao da simulao clnica em enfermagem baseada em Basil Bernstein: semiologia da prtica pedaggica Recontextualizacin de la simulacin de enfermera clnica basada en Basil Bernstein: la semiologa de la prctica pedaggica Recontextualization of Nursing clinical simulation based on Basil Bernstein: semiology of pedagogical practice

    Directory of Open Access Journals (Sweden)

    Mateus Casanova dos Santos

    2010-12-01

    Full Text Available O presente artigo um estudo de caso investigativo de carter participante e descritivo, a partir da vivncia pedaggica no disparador de aprendizagem Simulao em Enfermagem, do segundo semestre do primeiro ciclo da graduao da Faculdade de Enfermagem (FEn da Universidade Federal de Pelotas (UFPel, onde se desenvolve a simulao clnica de semiologia e semiotcnica em Enfermagem. O objetivo estudar a recontextualizao da prtica pedaggica da Simulao com base em teorizaes do socilogo da educao Basil Bernstein, contribuindo para o processo de aperfeioamento do planejamento de ensino e, especialmente, da avaliao deste disparador de aprendizagem. A partir das reflexes deste estudo, observa-se a teorizao de Bernstein como uma potente ferramenta semiolgica das prticas pedaggicas, a qual contribui para o planejamento e anlise do dispositivo pedaggico curricular.Este artculo es un caso de estudio de carcter descriptivo y de investigacin participante, desde la experiencia educativa de aprendizaje en el gatillo Simulacin en Enfermera, de la segunda mitad del primer ciclo de la Escuela Enfermera (FEN de la Universidade Federal de Pelotas (UFPel donde se desarrolla la simulacin de la semiologa clnica y la semitica en Enfermera. El objetivo es estudiar la recontextualizacin de la prctica pedaggica de teoras basadas en la simulacin del socilogo de la educacin Basil Bernstein, contribuyendo al proceso de mejora de la educacin, planificacin y aprendizaje, especialmente la evaluacin de gatillo. De las reflexiones de este estudio, existe la teora de Bernstein como una poderosa herramienta de semitica prcticas pedaggicas, lo que contribuye a la planificacin y el anlisis de dispositivos educativos curriculares.This article is a case study of investigative and descriptive participant character, from the educational experience of learning in the trigger Simulation in Nursing, the second half of the first cycle of Faculdade de Enfermagem (FEN, Universidade Federal de Pelotas (UFPel where he develops simulation of clinical semiology and semiotics in Nursing. The goal is to study the recontextualization of pedagogic practice of simulation-based theories of the sociologist of education Basil Bernstein, contributing to the improvement process of planning education, and especially the evaluation of trigger learning. From reflections on this study, there is the theory of Bernstein as a powerful tool of semiotic pedagogical practices, which contributes to the planning and analysis of curricular educational device.

  14. Effect of Water Stress and Storage Time on Anthocyanins and Other Phenolics of Different Genotypes of Fresh Sweet Basil.

    Science.gov (United States)

    Luna, Mara C; Bekhradi, Farzaneh; Ferreres, Federico; Jordn, Mara J; Delshad, Mojtaba; Gil, Mara I

    2015-10-28

    This study describes the effect of water stress and storage time on the content of anthocyanins and other phenolics in different genotypes of fresh sweet basil (Ocimum basilicum L.). Purple and green Iranian cultivars and a Genovese variety were exposed to a control (100% of the field capacity, FC) and to water stress of mild and severe deficit irrigation treatments (25 and 50 DI corresponding to 75 and 50% FC, respectively). The individual characterization by HPLC-DAD-ESI/MS(n) and the MS fragmentation pathway of anthocyanins are described. A 50% increase in the anthocyanin content was observed in 50 DI after storage. Water stress markedly enhanced the content of phenolic acids after storage in the three genotypes. Water stress can be an efficient way to help the sustainability of water resources, enriching the content of phenolic compounds that may be beneficial to human health. PMID:26473474

  15. The importance of Mount Athos and the Ohrid Archbishopric for the policy of Basil II in the Balkans

    Directory of Open Access Journals (Sweden)

    Krsmanovi? Bojana

    2012-01-01

    Full Text Available The essay ascertains that the monastic center located on Mount Athos and the Ohrid Archbishopric played a very important role in the policies pursued by Basil II. It was during his rule that the first foreign monasteries, which later Greek sources refer to as monastic communities ??????? ??????? (Iveron and Amalfi, were established. The third monastery displaying this characteristic was the Serbian monastery Hilandar. Since Hilandar had been established after the Bulgarian and Russian monasteries, the question arose why sources dating from the late 12th century do not mention Zographou and St. Panteleimons monastery among the ??????? ??????? monasteries. The answeris to be found in the circumstances surrounding the establishment of Slavic monasteries on Mount Athos. The essay also assesses the importance of Mount Athos and the Ohrid Archbishopric for the process of deeper integration of Slavs into the Byzantine religious and political-ideological system. [Projekat Ministarstva nauke Republike Srbije, br. 177032: Tradicija, inovacija i identitet u vizantijskom svetu

  16. Antimicrobial activity of sweet basil and thyme against salmonella enterica serotype Enteritidis in egg-based pasta

    Directory of Open Access Journals (Sweden)

    Stojiljkovi? Jasmina

    2015-01-01

    Full Text Available Salmonella enterica serotype Enteritidis is known as one of the most common pathogenic bacteria causing salmonellosis in humans. Raw materials of animal origin (eggs, chicken meat are frequent vectors that transmit this bacterium. Since eggs are used for the production of pasta, due to insufficient thermal treatment during pasta drying, they can be a potential risk to consumer health. Different essential oils of herbs can be used to reduce present pathogenic microorganisms. This paper compares a decrease in the number of Salmonella enterica serotype Enteritidis (D ATCC 13076 and Salmonella enterica serotype Enteritidis isolated from outbreaks of salmonellosis in egg-based pasta under the influence of thyme and sweet basil essential oils. The results indicate that the utilized oils were more effective against the epidemic strain than the ATCC strain. In addition, thyme oil caused a more significant inhibition of Salmonella enterica serotype Enteritidis during the production process.

  17. Personal authentication through dorsal hand vein patterns

    Science.gov (United States)

    Hsu, Chih-Bin; Hao, Shu-Sheng; Lee, Jen-Chun

    2011-08-01

    Biometric identification is an emerging technology that can solve security problems in our networked society. A reliable and robust personal verification approach using dorsal hand vein patterns is proposed in this paper. The characteristic of the approach needs less computational and memory requirements and has a higher recognition accuracy. In our work, the near-infrared charge-coupled device (CCD) camera is adopted as an input device for capturing dorsal hand vein images, it has the advantages of the low-cost and noncontact imaging. In the proposed approach, two finger-peaks are automatically selected as the datum points to define the region of interest (ROI) in the dorsal hand vein images. The modified two-directional two-dimensional principal component analysis, which performs an alternate two-dimensional PCA (2DPCA) in the column direction of images in the 2DPCA subspace, is proposed to exploit the correlation of vein features inside the ROI between images. The major advantage of the proposed method is that it requires fewer coefficients for efficient dorsal hand vein image representation and recognition. The experimental results on our large dorsal hand vein database show that the presented schema achieves promising performance (false reject rate: 0.97% and false acceptance rate: 0.05%) and is feasible for dorsal hand vein recognition.

  18. Portal vein gas in emergency surgery

    Directory of Open Access Journals (Sweden)

    Mahmood Hind

    2008-07-01

    Full Text Available Abstract Background Portal vein gas is an ominous radiological sign, which indicates a serious gastrointestinal problem in the majority of patients. Many causes have been identified and the most important was bowel ischemia and mesenteric vascular accident. The presentation of patients is varied and the diagnosis of the underlying problem depends mainly on the radiological findings and clinical signs. The aim of this article is to show the clinical importance of portal vein gas and its management in emergency surgery. Methods A computerised search was made of the Medline for publications discussing portal vein gas through March 2008. Sixty articles were identified and selected for this review because of their relevance. These articles cover a period from 19752008. Results Two hundreds and seventy-five patients with gas in the portal venous system were reported. The commonest cause for portal vein gas was bowel ischemia and mesenteric vascular pathology (61.44%. This was followed by inflammation of the gastrointestinal tract (16.26%, obstruction and dilatation (9.03%, sepsis (6.6%, iatrogenic injury and trauma (3.01% and cancer (1.8%. Idiopathic portal vein gas was also reported (1.8%. Conclusion Portal vein gas is a diagnostic sign, which indicates a serious intra-abdominal pathology requiring emergency surgery in the majority of patients. Portal vein gas due to simple and benign cause can be treated conservatively. Correlation between clinical and diagnostic findings is important to set the management plan.

  19. Influence of Zn foliar application on growth characteristics and essential oil yield of basil (Ocimum basilicum L. under salinity stress

    Directory of Open Access Journals (Sweden)

    Gh. Gohari

    2013-10-01

    Full Text Available Mass production of medicinal and aromatic plants under hydroponic systems and especially in areas with saline soils is very important. An experiment was conducted to evaluate the interaction of salinity stress and foliar application of zinc (Zn on hydroponically-grown basil (Ocimum basilicum L.. The factorial experiment was arranged as randomized complete blocks design, with two salinity levels (0 and 50 mM NaCl and three Zn levels (0, 100 and 200 mg/L as ZnSO4,7H2O and three replications. Some growth characteristics such as height, leaf surface area, fresh and dry weight of leaves, stem and whole plant, chlorophyll index, harvest index and yield of dry leaves per m2 were measured. After extraction of essential oil, the oil yield was calculated based on oil content in the plant. The results showed that salinity stress adversely affected all growth characteristics as well as essential oil content and yield. Despite the generally accepted hypothesis, Zn application not only had no impact on reducing the negative effects of salinity, but also showed no significant difference between the control plants (no salinity. The highest essential oil content and yield were recorded for control plants. Therefore, it is concluded that under the hydroponics system, basil is sensitive to 50 mM salinity, and Zn foliar application up to 200 mg/L had no positive impact on the reduction of negative effects of salinity. Thus, control nutrient solution has appropriate amount of Zn for salinity stress conditions.

  20. The Effect of Static Magnetic Forces on Water Contents and Photosynthetic Pigments in Sweet Basil Ocimum basilicum L. (Lamiaceae)

    International Nuclear Information System (INIS)

    Three different magnetic regimes; aerial, surface and buried; each with three different forces, have been used to investigate their effects on the water contents and photosynthetic pigments of sweet basil plants (Ocimum basilicum L.). Two groups of sweet basil seeds, Ocimum basilicum L. have been cultivated, one under normal conditions and the second has been subdivided into three portion (aerial, surface and buried) to examine the effect of different magnetic forces coming from the three directions on the resulted plants. At all directions of magnets, water contents have been significantly affected by the magnetic forces. Chlorophyll A and carotene contents have been affected, as well, according to the three magnetic forces coming from soil surface regime only. Chlorophyll B did not significantly affected by differences magnetic forces in the three regimes, but it is affected by magnetism wherever its direction or force. But all the photosynthetic pigments contents (Chlorophyll A, B and Carotenes) decreased significantly than the control in the three magnetic regimes., but without any effect according to differences in the magnetic force in the aerial and burried regimes of magnetism. It was concluded that magnetism affects both water absorption and retention , the most influenced regime was the aerial magnets followed by the surface and buried ones. This result can be interpreted by the ionization of water which makes water ions respond to magnetic forces. Photosynthetic pigments have been decreased significantly by the exposure to magnetic fields, irrespective to its direction or force and this may be due to the effect of magnetic fields on the reduction in plastids inside the cells. (author)

  1. [Recurrence following surgery of the gastrocnemius veins].

    Science.gov (United States)

    Juhan, C; Barthlmy, P; Alimi, Y; Di Mauro, P

    1997-12-01

    Routine preoperative investigation of chronic venous insufficiency of the lower limbs with echo-Doppler has brought to light the presence of reflux into the gastrocnemius veins in almost 30% of the patients. Surgical treatment to stop this reflux consists in dividing the gastrocnemius vein flush to the popliteal vein. Early postoperative investigation of patients operated on in this way, who are symptomless and with no residual varices, has revealed the presence of persistent, symptomless, postoperative reflux into the gastrocnemius veins. One hundred and six patients were checked six months postoperatively by Duplex Doppler scanning. On the basis of the anatomical and functional findings, postoperative incompetence of the gastrocnemius veins could be classified into several types according to the cause: 1. Persistence of a complete and incompetent gastrocnemius vein, probably missed at operation: 16 patients (15%). 2. Neoangiogenesis: 11 patients (10%). 3. Persistence of an incompetent lower gastrocnemius perforating vein: 17 patients (16%). Thus, echography has revealed that in 44 lower limbs out of 106 (42%) in which the gastrocnemius veins were operated on, six months postoperatively evidence of reflux into the gastrocnemius venous network was present. All these patients were asymptomatic. In a sub-group of 48 lower limbs which had an interval Doppler check at 2 months: 6 already showed a reflux (12.5%), in 11 the gastrocnemius reflux appeared between the second and the sixth months (23%), 31 showed no reflux at 6 months (64.5%). From these findings, certain rules on the surgery of the gastrocnemius veins have been drawn up. PMID:9479603

  2. A reappraisal of saphenous vein grafting

    Directory of Open Access Journals (Sweden)

    Yuan Shi-Min

    2011-01-01

    Full Text Available Autologous saphenous vein grafting has been broadly used as a bypass conduit, interposition graft, and patch graft in a variety of operations in cardiac, thoracic, neurovascular, general vascular, vascular access, and urology surgeries, since they are superior to prosthetic veins. Modified saphenous vein grafts (SVG, including spiral and cylindrical grafts, and vein cuffs or patches, are employed in vascular revascularization to satisfy the large size of the receipt vessels or to obtain a better patency. A loop SVG helps flap survival in a muscle flap transfer in plastic and reconstructive surgery. For dialysis or transfusion purposes, a straight or loop arteriovenous fistula created in the forearm or the thigh with an SVG has acceptable patency. The saphenous vein has even been used as a stent cover to minimize the potential complications of standard angioplasty technique. However, the use of saphenous vein grafting is now largely diminished in treating cerebrovascular disorders, superior vena cava syndrome, and visceral revascularization due to the introduction of angioplasty and stenting techniques. The SVG remains the preferable biomaterial in coronary artery bypass, coronary ostioplasty, free flap transfer, and surgical treatment of Peyronie disease. Implications associated with saphenous vein grafting in vascular access surgery for the purpose of dialysis and chemotherapy are considerable. Vascular cuffs and patches have been developed as an important and effective means of enhancing the patency rates of the grafts by linking the synthetic material to the receipt vessel. In addition, saphenous veins can be a cell source for tissue engineering. We review the versatile roles that saphenous vein grafting has played as well as its current status in therapy.

  3. RI angiographic evaluation of varicose veins

    International Nuclear Information System (INIS)

    A case of 54-year-old woman with varicose viens in the both legs was evaluated by in vivo sup(99m)Tc-labeled red blood cells angiography. Dynamic study only showed tortuousity of the lower abdominal aorta and iliac arteries. Blood pool image showed prominent tortuousity and dilatation of superficial veins and anastomosing branches in the both legs. Contrast angiography only showed tortuous abdominal aorta and iliac arteries. Contrast venography showed tortuous and dilated veins. Blood pool image of RI angiography is useful in evaluating for varicose veins of the legs. (author)

  4. Brachial Artery-Brachial Vein Fistula for Hemodialysis: One- or Two-Stage Procedure-A Review.

    Science.gov (United States)

    Kotsis, T; Moulakakis, K G; Mylonas, S N; Kalogeropoulos, P; Dellis, A; Vasdekis, S

    2016-03-01

    Purpose?The purpose of the study was to investigate the patency rate of the brachial vein transposition-arteriovenous fistula [BVT-AVF] and to review the available literature regarding the comparison of the one-stage with the two-stage procedure. Methods?A multiple electronic health database search was performed, aiming to identify studies on brachial vein superficialization. Case reports and series with five or less patients were excluded from the study. End points of the study were the patency rates at 12, 24, and 36 months of follow-up. The patency of the one- or two-stage BVT-AVF procedure was investigated. Results?Overall, 380 BVT-AVFs were analyzed. The primary patency rate at 12 months ranged between 24 and 77%. Rate of early fistula malfunction or failure of maturation of the fistula resulting in loss of functionality ranged from 0 to 53%. Forearm edema, hematomas, wound infection, and early thrombosis were among the most common complications. Limited data were available for the comparison of patency rates between the one- and the two-stage procedure because of the absence of sufficient comparative studies. However, series with one-stage procedure presented a lower patency rate at 12 months compared to series with two stages. Conclusion?Patency rates after BVT-AVF, although not excellent, has encouraging results taking into account that patients undergoing these procedures do not have an accessible superficial vein network; failure of maturation and the increased rate of early postoperative complications remain a concern. The BVT-AVF is a valuable option for creating an autologous vascular access in patients lacking adequate superficial veins. PMID:26900307

  5. Radionuclide angiographic evaluation of right and left ventricular function during exercise after repair of transposition of the great arteries. Comparison with normal subjects and patients with congenitally corrected transposition

    International Nuclear Information System (INIS)

    We assessed the incidence, clinical significance and etiology of ventricular dysfunction after intraatrial repair of d-transposition of the great arteries in 11 patients, mean age 9 +/- 3 years, who had had Mustard operations. We compared the results to 15 patients who were considered to have normal ventricular function, two patients who had Rastelli operations and five patients with congenitally corrected transposition. Gated equilibrium radionuclide angiography with supine exercise stress testing was used to assess these children. We found no significant difference between our patient groups in exercise capacity, heart rate, or blood pressure response to exercise. However, we found a high incidence of right ventricular dysfunction in the patient groups, manifested by an abnormal right ventricular ejection fraction response to dysfunction in the patient groups, manifested by an abnormal right ventricular ejection fraction response to exercise in six of 11 patients with a Mustard repair, both patients with a Rastelli repair and all five with congenitally corrected transposition. In addition, the left ventricular response to exercise was abnormal in 10 of 11 patients who had undergone a Mustard repair, both patients with a Rastelli repair, and two of five patients with congenitally corrected transposition. We conclude that biventricular dysfunction is frequently present after intraatrial repair of d-transposition of the great arteries. Despite this dysfunction, no significant decrease in exercise tolerance is found in childhood

  6. A Survey of Vein Recognition Techniques

    Directory of Open Access Journals (Sweden)

    Pei-Wei Tsai

    2010-01-01

    Full Text Available Biometric technology is an efficient personal authentication and identification technique. As one of the main-stream branches, vein recognition has drawn much attention among researchers and diverse users. This study proposes a survey of vein recognition techniques. The basic principle, key techniques, performance evaluation metrics, application fields and future trends are extensively analyzed. In particular, in the key techniques, most previous work is systematically described and compared in three parts, i.e., vein image acquisition and preprocessing, feature extraction and feature matching. According to the available work in theoretical analysis reports in literatures and commercial utilization experiences, vein recognition has been proved to be an effective, secure and reliable choice of high precision among biometrics techniques. It maintains an excellent promise in various applications.

  7. Risk factors of thrombosis in abdominal veins

    OpenAIRE

    Dutta, Amit Kumar; Chacko, Ashok; George, Biju; Joseph, Joseph Anjilivelil; Nair, Sukesh Chandran; Mathews, Vikram

    2008-01-01

    AIM: To estimate the prevalence of inherited and acquired thrombophilic risk factors in patients with abdominal venous thrombosis and to compare the risk factor profiles between Budd-Chiari syndromes (BCS) and splanchnic vein thrombosis (SVT).

  8. Personal Authentication System using Hand Vein Biometric

    Directory of Open Access Journals (Sweden)

    G. Sathish

    2012-01-01

    Full Text Available With an increasing emphasis on security, automated personal identification using hand vein biometric feature is becoming a very active topic in both research and practical applications. The objective of this work is to present a biometric authentication system for high security physical access control based on hand vein pattern. Hand vein biometric is selected, as it is foolproof, offers higher security and reliable for identification.The feature extraction stage consists of removal of the noise inherent using various filtering techniques and extraction of the most discriminating information present in the images using Discrete Wavelet Transform and Adaptive Thresholding techniques. The proposed recognition system makes use of hausdorff distance as matching parameter. The biometric system developed was tested on WASET hand vein image database of Chinese Academy of Sciences Institute of Automation is used and the system is implemented in MATLAB. The proposed approach found to report higher verification accuracy of 99.5%.

  9. Portal vein thrombosis in liver transplantation.

    Science.gov (United States)

    Charco, R; Fuster, J; Fondevila, C; Ferrer, J; Mans, E; Garca-Valdecasas, J C

    2005-11-01

    In the initial experience of liver transplantation, complete thrombosis and portal vein occlusion were considered to be absolute contraindications for liver transplantation. The incidence of portal thrombosis in patients being prepared for transplantation varies between 5% and 15% according to published series. There are 2 surgical techniques to solve absent or low portal vein flow due to thrombosis. The most widely used technique is thrombectomy and the second technique is insertion of a shunt with a venous graft in the permeable portion of the superior mesenteric vein or in a vein in the splanchnic territory. Portal thrombosis recurrence rates vary among series, ranging from 0% to 25% or even 30%, depending on its extension and severity and also on time the transplantation was performed. Although overall survival is somewhat lower, there are no significant differences in most of the series when patients with portal thrombosis who underwent transplantation are compared with those without. PMID:16386579

  10. Aneurysm of the vein of Galen

    International Nuclear Information System (INIS)

    We report a case of a vein of Galen aneurysm in a neonate in which MR imaging provided essentially all pertinent diagnostic information prior to surgery. MR findings correlated well with selective cerebral angiography. (orig./MG)

  11. Management of Cosmetically Objectionable Periocular Veins

    OpenAIRE

    Kersten, Robert C.

    2007-01-01

    Cosmetically objectionable reticular veins in the eyelids may be managed by transection and cautery, extraction with a special phlebectomy hook, laser ablation with the neodymium-doped yttrium aluminum garnet laser, or sclerotherapy using sodium tetradecyl sulfate.

  12. Veins Improve Fracture Toughness of Insect Wings

    OpenAIRE

    Dirks, Jan-Henning; Taylor, David

    2012-01-01

    During the lifetime of a flying insect, its wings are subjected to mechanical forces and deformations for millions of cycles. Defects in the micrometre thin membranes or veins may reduce the insects flight performance. How do insects prevent crack related material failure in their wings and what role does the characteristic vein pattern play? Fracture toughness is a parameter, which characterises a materials resistance to crack propagation. Our results show that, compared to other body part...

  13. Guide Wire Migration During Femoral Vein Catheterization

    OpenAIRE

    Mohammad Reza Khatami; Rozita Abbasi; Gelareh Sadigh

    2010-01-01

    Central vein catheterization is a routine and relatively safe procedure in critically ill patients. Complications with this procedure depend to the site of catheterization and the skill of the operator. In addition to the common complications with femoral vein catheterization there are some rare usually preventable side effects related to guide wire and catheter. In our patient who underwent femoral catheterization for acute hemodialysis, we report migration of guide wire through the systemic...

  14. Risk factors of thrombosis in abdominal veins

    OpenAIRE

    Amit Kumar Dutta, Ashok Chacko, Biju George, Joseph Anjilivelil Joseph, Sukesh Chandran Nair, Vikram Mathews

    2008-01-01

    AIM: To estimate the prevalence of inherited and acquired thrombophilic risk factors in patients with abdominal venous thrombosis and to compare the risk factor profiles between Budd-Chiari syndromes (BCS) and splanchnic vein thrombosis (SVT).METHODS: In this retrospective study, 36 patients with abdominal venous thrombosis were studied. The patients were divided into Budd-Chiari group (hepatic vein, IVC thrombosis) and splanchnic venous thrombosis group (portal, splenic, superior mesenteric ...

  15. Coronary vein graft disease: Pathogenesis and prevention

    OpenAIRE

    Parang, Pirouz; Arora, Rohit

    2009-01-01

    Not long after coronary artery bypass grafting surgery was described, several reports presented follow-up angiographic data on large cohorts of patients, demonstrating that approximately one-half of saphenous vein grafts fail within 10 to 15 years of surgery and that graft failure is associated with worse clinical outcomes. Three processes are responsible for vein graft failure. Thrombosis, intimal hyperplasia and accelerated atherosclerosis contribute to graft failure in the acute, subacute ...

  16. Saphenous vein graft aneurysm: an incidental finding

    OpenAIRE

    Rana, Omar; Greaves, Kim; Shepherd, David; Parvin, Simon; Swallow, Rosie

    2009-01-01

    Saphenous vein graft aneurysm (SVGA) is an uncommon complication of coronary artery bypass graft surgery (CABG). An 82-year-old man underwent contrast-enhanced computed tomography to investigate aorto-iliac disease. He was coincidentally noted to have an aneurysm of the saphenous vein graft to his right coronary artery. This was visualised on transthoracic echocardiography, computed tomography and coronary angiography. In the absence of symptoms and in view of high surgical risk, conservative...

  17. Retrotracheal aberrant left brachiocephalic vein: CT findings

    Energy Technology Data Exchange (ETDEWEB)

    Yigit, Adalet E.; Haliloglu, Mithat; Karcaaltincaba, Musturay; Ariyurek, Macit O. [Hacettepe University Faculty of Medicine, Department of Radiology, Ankara (Turkey)

    2008-03-15

    We present a child with double aberrant left brachiocephalic vein (ALBCV) that was an incidental finding on CT. The anterior and thin branch was above the aortic arch and behind the truncus brachiocephalicus and drained into the superior vena cava (SVC). The posterior and thick branch of the ALBCV coursed posterior to the trachea and oesophagus and joined with the azygos vein before draining into the SVC. To our knowledge, retrotracheal ALBCV has not been previously described. (orig.)

  18. Doppler spectral characteristics of infrainguinal vein bypasses

    DEFF Research Database (Denmark)

    Nielsen, Tina G; von Jessen, F; Sillesen, H; Schroeder, T V

    1993-01-01

    With the aim of assessing the velocity profile of femoropopliteal and femorocrural vein bypasses, 128 patients undergoing infrainguinal vein bypass surgery entered a postoperative Duplex surveillance protocol, which included clinical assessment and Duplex scanning, using Doppler spectral analysis....... Doppler spectra were obtained at three sites in each graft and the following waveform parameters recorded: maximum systolic velocity, minimum diastolic velocity and resistance index. In patent reconstructions systolic velocity decreased by 30% during the first 6 months after surgery. In the absence of...

  19. Estudio de las Venas de la Fosa Cubital a travs de la Tomografa Computada Helicoidal y su Aplicacin Clnica Study of the Veins of the Cubital Fossa by Helical Computed Tomography and its Clinical Application

    Directory of Open Access Journals (Sweden)

    Mariano del Sol

    2012-03-01

    Full Text Available Las venas superficiales de la fosa cubital, constituyen uno de los sitios ms importantes de puncin venosa. La disposicin de estas venas presenta numerosas variaciones. Su anatoma no ha sido estudiada aplicando los avances tecnolgicos en el campo de la medicina, como la tomografa computada helicoidal. Fueron analizadas mediante tomografa axial computada helicoidal, las formaciones venosas de la fosa cubital en 60 individuos chilenos de ambos sexos, de edades entre 10 y 86 aos, de la IX Regin de La Araucana, Chile. El estudio fue realizado en un tomgrafo General Electric, modelo CT/e, perteneciente al Centro de Imagenologa del Hospital del Trabajador, Temuco, Chile, en individuos ambulatorios. Basados en la clasificacin de del Sol et al. (1988 para las formaciones venosas de la fosa cubital, se obtuvo los siguientes resultados: Tipo I (46,7%, la vena ceflica del antebrazo (VCA, se divide en vena mediana baslica (VMB y vena mediana ceflica (VMC, las que se unen a la vena baslica del antebrazo (VBA y vena ceflica del accesoria del antebrazo (VCAA, respectivamente. Tipo II (13,3%, la VCA origin la vena mediana del codo (VMCo, que se une a la VBA. Tipo III (20%, no existe comunicacin entre la VBA y VCA a nivel de la fosa cubital. Tipo IV (8,3%, la VCA drenaba en la VBA. Tipo V (11,7%. Otras disposiciones, donde se incluye la "M" clsica, que resulta de la divisin de la vena mediana del antebrazo. La utilizacin de la VMC o de la VCA, se recomienda ya que previene los riesgos de puncin de otras estructuras anatmicas importantes como el ramo anterior del nervio cutneo antebraquial medial.The superficial veins of the cubital fossa, is one of the most important sites of venipunctures. There are many variations in the arrangement of these veins. Their anatomy has not been studied using technology available in the field of medicine such, as helical computed tomography. The vein formation of the cubital fossa in 60 Chilean subjects of both sexes, between 10 and 86 years of age of the IX Region of Araucania, Chile, were analyzed by helical computed tomography. The study was realized on a General Electric scanner, model CT / e, belonging to the Imaging Center of the Hospital del Trabajador, Temuco, Chile, in ambulatory subjects. Based on the classification of del Sol et al. (1988 for the vein formation of the cubital fossa, we obtained the following results: Type I (46.7%, the cephalic vein of forearm (CVF, is divided into median basilic vein (MBV and median cephalic vein (MCV, then anastomosis the basilic vein of forearm (BVF and cephalic vein accessory (CVA, respectively. Type II (13.3%, the CVA originates at the median cubital vein (MCuV, which anastomoses to the BVF. Type III (20%, there is no communication between BVF and CVF at the cubital fossa. Type IV (8.3%, CVF drains into the BVF. Type V (11.7% - Other disposition, which include the "M" classical, resulting from the division of the median antebrachial vein. Using the MCV or CVF, is recommended, since there are risks of puncture of other important anatomical structures such as the anterior branch of the medial antebrachial cutaneous nerve.

  20. Estudio de las Venas de la Fosa Cubital a travs de la Tomografa Computada Helicoidal y su Aplicacin Clnica / Study of the Veins of the Cubital Fossa by Helical Computed Tomography and its Clinical Application

    Scientific Electronic Library Online (English)

    Mariano, del Sol; Eugenio, Lillo; Leonardo, Lobos; Blgica, Vsquez.

    2012-03-01

    Full Text Available Las venas superficiales de la fosa cubital, constituyen uno de los sitios ms importantes de puncin venosa. La disposicin de estas venas presenta numerosas variaciones. Su anatoma no ha sido estudiada aplicando los avances tecnolgicos en el campo de la medicina, como la tomografa computada heli [...] coidal. Fueron analizadas mediante tomografa axial computada helicoidal, las formaciones venosas de la fosa cubital en 60 individuos chilenos de ambos sexos, de edades entre 10 y 86 aos, de la IX Regin de La Araucana, Chile. El estudio fue realizado en un tomgrafo General Electric, modelo CT/e, perteneciente al Centro de Imagenologa del Hospital del Trabajador, Temuco, Chile, en individuos ambulatorios. Basados en la clasificacin de del Sol et al. (1988) para las formaciones venosas de la fosa cubital, se obtuvo los siguientes resultados: Tipo I (46,7%), la vena ceflica del antebrazo (VCA), se divide en vena mediana baslica (VMB) y vena mediana ceflica (VMC), las que se unen a la vena baslica del antebrazo (VBA) y vena ceflica del accesoria del antebrazo (VCAA), respectivamente. Tipo II (13,3%), la VCA origin la vena mediana del codo (VMCo), que se une a la VBA. Tipo III (20%), no existe comunicacin entre la VBA y VCA a nivel de la fosa cubital. Tipo IV (8,3%), la VCA drenaba en la VBA. Tipo V (11,7%). Otras disposiciones, donde se incluye la "M" clsica, que resulta de la divisin de la vena mediana del antebrazo. La utilizacin de la VMC o de la VCA, se recomienda ya que previene los riesgos de puncin de otras estructuras anatmicas importantes como el ramo anterior del nervio cutneo antebraquial medial. Abstract in english The superficial veins of the cubital fossa, is one of the most important sites of venipunctures. There are many variations in the arrangement of these veins. Their anatomy has not been studied using technology available in the field of medicine such, as helical computed tomography. The vein formatio [...] n of the cubital fossa in 60 Chilean subjects of both sexes, between 10 and 86 years of age of the IX Region of Araucania, Chile, were analyzed by helical computed tomography. The study was realized on a General Electric scanner, model CT / e, belonging to the Imaging Center of the Hospital del Trabajador, Temuco, Chile, in ambulatory subjects. Based on the classification of del Sol et al. (1988) for the vein formation of the cubital fossa, we obtained the following results: Type I (46.7%), the cephalic vein of forearm (CVF), is divided into median basilic vein (MBV) and median cephalic vein (MCV), then anastomosis the basilic vein of forearm (BVF) and cephalic vein accessory (CVA), respectively. Type II (13.3%), the CVA originates at the median cubital vein (MCuV), which anastomoses to the BVF. Type III (20%), there is no communication between BVF and CVF at the cubital fossa. Type IV (8.3%), CVF drains into the BVF. Type V (11.7%) - Other disposition, which include the "M" classical, resulting from the division of the median antebrachial vein. Using the MCV or CVF, is recommended, since there are risks of puncture of other important anatomical structures such as the anterior branch of the medial antebrachial cutaneous nerve.

  1. Transvenous liver biopsy via the femoral vein

    Energy Technology Data Exchange (ETDEWEB)

    Khosa, F. E-mail: fkhosa@hotmail.com; McNulty, J.G.; Hickey, N.; O' Brien, P.; Tobin, A.; Noonan, N.; Ryan, B.; Keeling, P.W.N.; Kelleher, D.P.; McDonald, G.S.A

    2003-06-01

    AIM: To study the safety, effectiveness and diagnostic value of transvenous forceps biopsy of the liver in 54 patients with coagulopathy, gross ascites or morbid obesity and suspected liver disease in whom percutaneous liver biopsy was contraindicated. MATERIAL AND METHODS: Forceps biopsy of the liver via the femoral vein was attempted in 54 adult patients with advanced liver disease of unknown aetiology who had coagulation disorders (41 cases), gross ascites (11 cases) or morbid obesity (two cases). In each patient two to six biopsies (average four) were taken using a radial jaw forceps inserted via the right or left femoral vein. RESULTS: The procedure was successful in 53 cases. Hepatic vein catheterization failed in one patient. Adequate liver tissue for diagnosis was obtained in 84% of cases. One patient developed delayed haemorrhage at 12 h from a capsular leak that was undetected during the biopsy procedure. This patient required blood transfusions and laparotomy to control bleeding. There were no deaths in the 53 patients studied. Transient minor chest and shoulder pain was encountered during sheath insertion into a hepatic vein in 23 patients. Three patients developed a femoral vein haematoma, which resolved with conservative treatment. CONCLUSION: Transvenous liver biopsy via the femoral vein is another safe, effective, simple alternative technique of biopsy when the percutaneous route is contraindicated.

  2. Transvenous liver biopsy via the femoral vein

    International Nuclear Information System (INIS)

    AIM: To study the safety, effectiveness and diagnostic value of transvenous forceps biopsy of the liver in 54 patients with coagulopathy, gross ascites or morbid obesity and suspected liver disease in whom percutaneous liver biopsy was contraindicated. MATERIAL AND METHODS: Forceps biopsy of the liver via the femoral vein was attempted in 54 adult patients with advanced liver disease of unknown aetiology who had coagulation disorders (41 cases), gross ascites (11 cases) or morbid obesity (two cases). In each patient two to six biopsies (average four) were taken using a radial jaw forceps inserted via the right or left femoral vein. RESULTS: The procedure was successful in 53 cases. Hepatic vein catheterization failed in one patient. Adequate liver tissue for diagnosis was obtained in 84% of cases. One patient developed delayed haemorrhage at 12 h from a capsular leak that was undetected during the biopsy procedure. This patient required blood transfusions and laparotomy to control bleeding. There were no deaths in the 53 patients studied. Transient minor chest and shoulder pain was encountered during sheath insertion into a hepatic vein in 23 patients. Three patients developed a femoral vein haematoma, which resolved with conservative treatment. CONCLUSION: Transvenous liver biopsy via the femoral vein is another safe, effective, simple alternative technique of biopsy when the percutaneous route is contraindicated

  3. Research progress in non-permanent vein cava filters

    International Nuclear Information System (INIS)

    Vein cava filter placement has already become one of the most effective measures for preventing pulmonary embolism which is usually secondary to deep vein thrombosis. With the development of research, non-permanent vein cava filter has been widely used. This paper aims to describe the recent progress in the research of non-permanent vein cava filters. (authors)

  4. Vestibular tributaries to the vein of the vestibular aqueduct

    DEFF Research Database (Denmark)

    Hansen, Jesper Marsner; Qvortrup, Klaus; Friis, Morten

    2010-01-01

    close relation to the VDCs in the utricle and the crista ampullaris of the lateral semicircular canal in the vestibular apparatus. One major vein emanated from these networks, which emptied into the vein of the vestibular aqueduct. Veins draining the saccule and the common crus of the superior and...... posterior semicircular canals were likewise observed to merge with the vein of the vestibular aqueduct....

  5. Effect of Moringa (Moringa oleifera leaf powder and sweet basil (Ocimum basilicum leaf paste on sensory and nutritional qualities of beef and ham burgers A preliminary study

    Directory of Open Access Journals (Sweden)

    Gabriel Teye

    2013-03-01

    Full Text Available Moringa leaf powder and sweet basil leaf paste are commonly used in local dishes in Ghana for purposes of flavour enhancement and nutrient supplements. This study was conducted to determine the effects of Moringa (Moringa oleifera leaf powder (MLP and Sweet basil (Ocimum basilicum leaf paste (SBLP on the sensory characteristics and nutritional compositions of beef and hamburgers. MLP and SBLP were incorporated at 0g (Control, T1, 2g, 4g and 6g/kg meat (T2, T3 and T4 respectively during the production of the burgers. The burgers were vacuum-packed and frozen for sensory and laboratory analyses. The M. oleifera leaf powder had significant (P0.01 the crude protein content but no significant effect on sensory characteristics of the products.

  6. The effect of essential oil of basil (Ocimum basilicum L.) on UV-induced mutagenesis in Escherichia coli and Saccharomyces cerevisiae

    International Nuclear Information System (INIS)

    The antimutagenic potential of essential oil (EO) of basil (Ocimum basilicum L.) and its major constituent linalool were studied with the E. coli K12 and S. cerevisiae D7 assays. In the E. coli assay, EO and linalool inhibited UV-induced mutagenesis in a repair-proficient strain, but had no effect on spontaneous mutagenesis in repair-proficient, nucleotide excision repair-deficient, and mismatch-deficient strains. By testing participation of different mechanisms involved in antimutagenesis, it was concluded that the antimutagenic effect against UV-induced mutagenesis involved decrease of protein synthesis and cell proliferation which led to increased efficiency of nucleotide excision repair. An antimutagenic effect of basil derivatives in S. cerevisiae was not detected. (author)

  7. The effects of kale (Brassica oleracea ssp. acephala), basil (Ocimum basilicum) and thyme (Thymus vulgaris) as forage material in organic egg production on egg quality

    DEFF Research Database (Denmark)

    Hammershj, Marianne; Steenfeldt, Sanna

    2012-01-01

    1. In organic egg production, forage material as part of the diet for laying hens is mandatory. The purpose of the present study was to examine the effect of feeding with forage materials including maize silage, herbs or kale on egg production and various egg quality parameters of the shell, yolk colour, egg albumen, sensory properties, fatty acid and carotenoid composition of the egg yolk. 2. A total of 5 dietary treatments were tested for 5 weeks, consisting of a basal organic feed plus 120 g/ hen.d of the following forage materials: 1) maize silage (control), 2) maize silage incl. 15 g/kg basil, 3) maize silage incl. 30 g/kg basil, 4) maize silage incl. 15 g/kg thyme, or 5) fresh kale leaves. Each was supplied to three replicates of 20 hens. A total of 300 hens was used. 3. Feed intake, forage intake and laying rate did not differ with treatment, but egg weight and egg mass produced increased significantly with the kale treatment. 4. The egg shell strength tended to be higher with the kale treatment, andegg yolk colour was significantly more red with the kale treatment and more yellow with basil and kale treatments. The albumen DM content and albumen gel strength were lowest with the thyme treatment. By sensory evaluation, the kale treatment resulted in eggs with less sulphur aroma, higher yolk colour score, and more sweet and less watery albumen taste. Furthermore, the eggs of the kale treatment had significantly higher lutein and -carotene content. Also, violaxanthin, an orange xanthophyll, tended to be higher in kale and eggs from hens receiving kale. 5. In conclusion, forage material, especially basil and kale, resulted in increased egg production and eggs of high and differentiable quality.

  8. Antioxidant potential of oregano (Oreganum vulgare L.), basil (Ocimum basilicum L.) and thyme (Thymus vulgaris L.): application of oleoresins in vegetable oil

    OpenAIRE

    Patrcia Vieira Del R; Neuza Jorge

    2011-01-01

    Studies have been carried out in order to increase the stability of vegetable oils due to economic and health protection reasons. There is a growing interest in the addition of natural antioxidants; especially herbs and spices. For this reason, this study aimed at evaluating the antioxidant potential of the oleoresins of oregano, basil, and thyme, as well as their behavior when applied to soybean oil under various concentrations. Firstly, the antioxidant activity was determined by the ?-carot...

  9. Leaf vein segmentation using Odd Gabor filters and morphological operations

    OpenAIRE

    Katyal, Vini; Aviral

    2012-01-01

    Leaf vein forms the basis of leaf characterization and classification. Different species have different leaf vein patterns. It is seen that leaf vein segmentation will help in maintaining a record of all the leaves according to their specific pattern of veins thus provide an effective way to retrieve and store information regarding various plant species in database as well as provide an effective means to characterize plants on the basis of leaf vein structure which is uniqu...

  10. Prokaryotic expression and purification of soluble goldfish Tgf2 transposase with transposition activity.

    Science.gov (United States)

    Xu, Hai-Li; Shen, Xiao-Dan; Hou, Fei; Cheng, Luo-Dan; Zou, Shu-Ming; Jiang, Xia-Yun

    2015-01-01

    Goldfish Tgf2 transposon of Hobo/Activator/Tam3 (hAT) family can mediate gene insertion in a variety of aquacultural fish species by transposition; however, the protein structure of Tgf2 transposase (TPase) is still poorly understood. To express the goldfish Tgf2 TPase in Escherichia coli, the 2061-bp coding region was cloned into pET-28a(+) expression vector containing an N-terminal (His)6-tag. The pET-28a(+)-Tgf2 TPase expression cassette was transformed into Rosetta 1 (DE3) E. coli lines. A high yield of soluble proteins with molecular weight of ~80 kDa was obtained by optimized cultures including low-temperature (22 C) incubation and early log phase (OD600 = 0.3-0.4) induction. Mass spectrometry analysis following trypsin digestion of the recombinant proteins confirmed a Tgf2 TPase component in the eluate of Ni(2+)-affinity chromatography. When co-injected into 1-2 cell embryos with a donor plasmid harboring a Tgf2 cis-element, the prokaryotic expressed Tgf2 TPase can mediate high rates (45 %) of transposition in blunt snout bream (Megalobrama amblycephala). Transposition was proved by the presence of 8-bp random direct repeats at the target sites, which is the signature of hAT family transposons. Production of the Tgf2 Tpase protein in a soluble and active form not only allows further investigation of its structure, but provides an alternative tool for fish transgenesis and insertional mutagenesis. PMID:25370823

  11. Demonstration of IS711 transposition in Brucella ovis and Brucella pinnipedialis

    Directory of Open Access Journals (Sweden)

    Garca-Lobo Juan M

    2008-01-01

    Full Text Available Abstract Background The Brucella genome contains an insertion sequence (IS element called IS711 or IS6501, which is specific to the genus. The copy number of IS711 varies in the genome of the different Brucella species, ranging from 7 in B. abortus, B. melitensis and B. suis to more than 30 in B. ovis and in Brucella strains isolated from marine mammals. At present, there is no experimental evidence of transposition of IS711, but the occurrence of this element with a high copy number in some species, and the isolation of Brucella strains with "ectopic" copies of IS711 suggested that this IS could still transpose. Results In this study we obtained evidence of transposition of IS711 from the B. ovis and B. pinnipedialis chromosomes by using the "transposon trap" plasmid pGBG1. This plasmid expresses resistance to tetracycline only if the repressor gene that it contains is inactivated. The strains B. melitensis 16 M, B. abortus RB51, B. ovis BOC22 (field strain and B. pinnipedialis B2/94, all containing the plasmid pGBG1, were grown in culture media with tetracycline until the appearance of tetracycline resistant mutants (TcR. TcR mutants due to IS711 transposition were only detected in B. ovis and B. pinnipedialis strains. Conclusion Four different copies of IS711 were found to transpose to the same target sequence in the plasmid pGBG1. This demonstrated that IS711 are active in vivo, specially in Brucella species with a high number of IS711 copies as B. ovis and B. pinnipedialis.

  12. Dental transposition of canine and lateral incisor and impacted central incisor treatment: A case report

    Scientific Electronic Library Online (English)

    Tarcisio Jacinto, Gebert; Vincius Canavarros, Palma; Alvaro Henrique, Borges; Luiz Evaristo Ricci, Volpato.

    2014-01-01

    Full Text Available INTRODUO: transposio e impaco dentrias so distrbios relacionados erupo ectpica ou falha na erupo dentria, que podem afetar o desenvolvimento fsico, psquico e social da criana, e que podem ser de difcil resoluo clnica. MTODOS: descrito um caso clnico de transposi [...] o entre o canino e o incisivo lateral superior esquerdo, associado impaco do incisivo superior, do mesmo lado, em uma paciente de 12 anos de idade. Optou-se pela realizao de tratamento ortodntico-cirrgico conservador, envolvendo a correo ortodntica dos dentes transpostos e o tracionamento do incisivo central impactado. CONCLUSO: a opo pela correo da transposio e tracionamento ortodntico com a utilizao da tcnica do arco segmentado com uso de dispositivos como cantilver e alas em fios TMA retangulares, apesar de ser uma alternativa de execuo complexa, mostrou-se efetiva do ponto de vista esttico e funcional. Abstract in english INTRODUCTION: Dental transposition and impaction are disorders related to ectopic eruption or failure in tooth eruption, which can affect child physical, mental and social development and may be difficult to be clinically solved. METHODS: We describe a case of transposition between the upper l [...] eft canine and lateral incisor associated with impaction of the central incisor on the same side, in a 12-year-old patient. Conservative treatment involving surgical-orthodontic correction of transposed teeth and traction of the central incisor was conducted. CONCLUSION: The option of correcting transposition and orthodontic traction by means of the segmented arch technique with devices such as cantilever and TMA rectangular wire loops, although a complex alternative, was proved to be esthetically and functionally effective.

  13. Changes in the content of total nitrogen and mineral nitrogen in the basil herb depending on the cultivar and nitrogen nutrition

    Directory of Open Access Journals (Sweden)

    Katarzyna Dzida

    2013-04-01

    Full Text Available Among fundamental nutrients, nitrogen fertilization is considered one of the most effective factors affecting both the yield and the quality of plant material. Nitrogen form used for fertilizing is also of great importance. The aim of this study was to investigate the impact of nitrogen nutrition (calcium nitrate, ammonium nitrate, and urea as well as (green, purple, andFino Verde on the chemical composition and yielding of basil (Ocimum basilicumL.. After drying the plant material at a temperature of 60C and milling, total nitrogen was determined by means of Kjeldahl method, while mineral nitrogen content (N-NH 4, N-NO 3 was analyzed in 2% acetic acid extract. Yield of fresh basil matter depended significantly on the variety grown. The highest yields were obtained from a cultivar of Fino Verde fertilized with ammonium nitrate. The purple variety plants fertilized with urea were characterized by a largest amount of total nitrogen. TheFino Verdecultivar fertilized with urea accumulated the least quantities of nitrates in the basil herb.

  14. Persistncia da veia citica / Persistent sciatic vein

    Scientific Electronic Library Online (English)

    Brbara Borges, Cardoso; Camila Oliveira, Alvarenga; Mara de Souza, Miyahara; Marcelo Calil, Burihan; Maria Raphaella Queiroz Alves de, Lima; Mariana Cardoso, Kuwahara; Rafael Capobianco Maia e, Silva.

    2010-09-01

    Full Text Available CONTEXTO: Durante um perodo da vida embrionria, a veia citica a principal coletora do membro inferior. Na embriognese vascular, h diferenciao dos angioblastos em um plexo vascular primitivo, com posterior remodelagem e expanso. Consequentemente, durante esse processo, podem ocorrer anomali [...] as. Quando ocorre persistncia da veia citica, esta pode se comunicar com a veia safena parva ou com a veia popltea durante seu percurso, anastomosando-se com a veia perfurante superior e com a veia circunflexa medial do fmur. OBJETIVO: Relatar o caso da persistncia bilateral de veia citica nos membros inferiores, comparando literatura. MTODOS: Foram dissecados 32 membros inferiores de 16 cadveres formolizados no Laboratrio de Anatomia pela Disciplina de Anatomia Topogrfica da Faculdade de Medicina da Universidade de Santo Amaro (Unisa), durante 2006 e 2007, observando-se em 2 membros inferiores de um nico cadver, a presena de veia citica. RESULTADOS: No membro inferior esquerdo de um cadver que apresentou a anomalia bilateralmente, a veia media 37 cm, tinha origem na regio da veia popltea, acompanhava o nervo citico, perfurava o msculo adutor magno e desembocava na veia femoral profunda. No membro inferior direito, ela media 36 cm, originava-se recebendo as veias do compartimento tibial anterior, acompanhava o nervo citico, perfurava o msculo adutor magno e desembocava na veia ilaca interna. CONCLUSO: As variaes anatmicas do sistema venoso do membro inferior so as mais prevalentes. A persistncia da veia citica pode causar insuficincia venosa crnica no membro inferior e, dessa forma, deve ser investigada para uma melhor conduta clnica ou cirrgica. Abstract in english BACKGROUND: During a period of the embryonic life, the sciatic vein is the main lower limb collector. In vascular embryogenesis, there is a differentiation of the angioblasts in a primitive vascular plexus, with posterior remodeling and expansion. Consequently, anomalies may occur during this proces [...] s. When there is persistence of the sciatic vein, it may communicate with the small saphenous vein or with the popliteal vein during its route, being anastomosed to the superior perforating vein and to the medial circumflex femoral vein. OBJECTIVE: To report a case of bilateral persistent sciatic vein on the lower limbs in comparison to the literature. METHODS: Thirty-two lower limbs from 16 corpses preserved in formaldehyde were dissected at the Laboratory of Anatomy of the discipline of Topographic Anatomy of the Medical School of Universidade Santo Amaro (Unisa), during 2006 and 2007, and the sciatic vein was observed in 2 lower limbs of one single corpse. RESULTS: On the left lower limb of a corpse that presented bilateral anomaly, the vein had 37 cm, emerging on the popliteal vein, accompanying the sciatic nerve, perforating the long adductor muscle and leading into the deep femoral vein. On the right lower limb, it measured 36 cm, emerged receiving the veins of the anterior tibial compartment, accompanied the sciatic nerve, perforated the long adductor muscle and led into the internal iliac vein. CONCLUSION: The anatomical variations of the lower limb venous system are the most common ones. The persistent sciatic vein may cause chronic venous failure in the lower limbs and, in this manner, must be investigated aiming at a better clinical or surgical management.

  15. Identification of the DNA sequence required for transposition immunity of the gamma delta sequence.

    OpenAIRE

    Goto, N; Mochizuki, A.; Inagaki, Y.; Horiuchi, S.; Tanaka, T; Nakaya, R

    1987-01-01

    A plasmid containing the transposon gamma delta sequence was immune to further insertion of gamma delta (transposition immunity). Plasmids carrying a fragment containing either 0.2 kilobase pairs of the gamma end or 0.4 kilobase pairs of the delta end of the gamma delta sequence were immune, and other parts of the gamma delta sequence did not confer immunity. The terminal 38-base-pair (bp) sequence of the delta end of the gamma delta was sufficient to confer immunity, the 38-bp sequence of th...

  16. Demonstration of IS711 transposition in Brucella ovis and Brucella pinnipedialis

    OpenAIRE

    Garca-Lobo Juan M; Ocampo-Sosa Alain A

    2008-01-01

    Abstract Background The Brucella genome contains an insertion sequence (IS) element called IS711 or IS6501, which is specific to the genus. The copy number of IS711 varies in the genome of the different Brucella species, ranging from 7 in B. abortus, B. melitensis and B. suis to more than 30 in B. ovis and in Brucella strains isolated from marine mammals. At present, there is no experimental evidence of transposition of IS711, but the occurrence of this element with a high copy number in some...

  17. Didactic transposition and teachers dilemmas arising on Physics for non-physicists teaching

    Directory of Open Access Journals (Sweden)

    Beatriz Milicic

    2008-01-01

    Full Text Available This work describes a research centered on dilemmas that university teachers face when they teach Physics in careers where this discipline is not the main one. We explored the didactic actions designed by teachers in those contexts, looking for the factors that could cause and/or condition the observed acting patterns. We built a theoretical model from a cultural perspective: we propose that the academic culture shapes the teacher thinking, which is reflected on his classroom practice. Three reference axes are considered: the notion of academic culture, the study of teacher thinking and the didactic transposition theory. The methodological design was centered on case studies.

  18. DNA transposition by protein transduction of the piggyBac transposase from lentiviral Gag precursors

    DEFF Research Database (Denmark)

    Cai, Yujia; Bak, Rasmus O.; Krogh, Louise Bechmann; Staunstrup, Nicklas H; Moldt, Brian; Corydon, Thomas J; Schrder, Lisbeth Dahl; Mikkelsen, Jacob Giehm

    2013-01-01

    DNA transposon-based vectors have emerged as gene vehicles with a wide biomedical and therapeutic potential. So far, genomic insertion of such vectors has relied on the co-delivery of genetic material encoding the gene-inserting transposase protein, raising concerns related to persistent expression...... transposase protein and vector RNA carrying the transposon sequence, allowing robust DNA transposition in a variety of cell types. Importantly, this novel delivery method facilitates a balanced cellular uptake of hyPBase, as shown by confocal microscopy, and allows high-efficiency production of clones...

  19. A poorly known case of watershed transposition between the So Francisco and upper Paran river basins

    OpenAIRE

    Orlando Moreira Filho; Paulo Andreas Buckup

    2005-01-01

    During construction of the Furnas hydroelectric power dam in the upper rio Paran basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the So Francisco river basin. The rio Piumhi was a right bank tributary of the rio Grande, which unites with the rio Paranaba to form the rio Paran. The transposition allowed the entire fish fauna of the rio Piumhi and associated swamps, lakes, and tributaries to intermingle with the fish fauna of the So Francisco b...

  20. Isolated laevocardia and corrected transposition of the great vessels with total situs inversus

    International Nuclear Information System (INIS)

    Isolated laevocardia combined with corrected transposition of the great arteries and complete situs inversus is rare. Due to discordant interrelationships between atria and ventricles and between ventricles and great arteries, both anomalies result in a normal circulation. In the presented case no associated cardiac malformations were present and the 55-year-old woman remained symptom-free for a long time until she developed an acquired valve disease. A systematic approach to chamber localisation in complex morphologic lesions of the heart is reviewed, and the value of CT, which can be applied successfully in older children and adults is demonstrated. (orig.)

  1. Biceps femoris muscle transposition for treatment of cranial cruciate ligament rupture in small breed dogs.

    Science.gov (United States)

    Tamburro, Roberto; Pinna, Stefania; Tribuiani, Anna Maria; Panacea, Alessandra; Carli, Fabio; Venturini, Antonio

    2012-03-01

    The purpose of this study was to evaluate a new extracapsular surgical technique for the treatment of cranial cruciate ligament rupture in small breed dogs. Nine small breed dogs (seven females and two males) weighing ? 15 kg were treated with biceps femoris muscle transposition (BFT). The duration of the BFT procedure was 20 min. Each patient underwent a standard clinical protocol and a questionnaire for the owners. Follow-up (at 1, 3, and 12 months postoperative) confirmed significant improvement in all patients, especially at 1 month postoperatively (p cruciate ligament rupture in small breed dogs. PMID:22437541

  2. Repetitive transpositions of mitochondrial DNA sequences to the nucleus during the radiation of horseshoe bats (Rhinolophus, Chiroptera).

    Science.gov (United States)

    Shi, Huizhen; Dong, Ji; Irwin, David M; Zhang, Shuyi; Mao, Xiuguang

    2016-05-01

    Transposition of mitochondrial DNA into the nucleus, which gives rise to nuclear mitochondrial DNAs (NUMTs), has been well documented in eukaryotes. However, very few studies have assessed the frequency of these transpositions during the evolutionary history of a specific taxonomic group. Here we used the horseshoe bats (Rhinolophus) as a case study to determine the frequency and relative timing of nuclear transfers of mitochondrial control region sequences. For this, phylogenetic and coalescent analyzes were performed on NUMTs and authentic mtDNA sequences generated from eight horseshoe bat species. Our results suggest at least three independent transpositions, including two ancient and one more recent, during the evolutionary history of Rhinolophus. The two ancient transpositions are represented by the NUMT-1 and -2 clades, with each clade consisting of NUMTs from almost all studied species but originating from different portions of the mtDNA genome. Furthermore, estimates of the most recent common ancestor for each clade corresponded to the time of the initial diversification of this genus. The recent transposition is represented by NUMT-3, which was discovered only in a specific subgroup of Rhinolophus and exhibited a close relationship to its mitochondrial counterpart. Our similarity searches of mtDNA in the R. ferrumequinum genome confirmed the presence of NUMT-1 and NUMT-2 clade sequences and, for the first time, assessed the extent of NUMTs in a bat genome. To our knowledge, this is the first study to report on the frequency of transpositions of mtDNA occurring before the common ancestry of a genus. PMID:26809101

  3. A New Multimodal Biometric System Based on Finger Vein and Hand Vein Recognition

    Directory of Open Access Journals (Sweden)

    Randa Boukhris Trabelsi

    2013-08-01

    Full Text Available As a reliable and robust biological characteristic, the vein pattern increases more and more the progress in biometric researches. Generally, it was shown that single biometric modality recognition is not able to meet high performances. In this paper, we propose a new multimodal biometric system based on fusion of both hand vein and finger vein modalities. For finger vein recognition, we employ the Monogenic Local Binary Pattern (MLBP, and for hand vein recognitionan Improved Gaussian Matched Filter (IGMF. Experimental results confirm that the proposed multimodal biometric process achieves excellent recognition performance compared to unimodal biometric system. The Area Under Curve (AUC of the proposed approach is very close to unity (0.98.

  4. Superao de dormncia em sementes de manjerico (Ocimum basilicum L. Overcoming dormancy in seeds of basil (Ocimum basilicum L.

    Directory of Open Access Journals (Sweden)

    H.T.R. Amaro

    2012-01-01

    Full Text Available O objetivo do trabalho foi avaliar a eficincia de tratamentos pr-germinativos na superao da dormncia de sementes de manjerico, produzidas no Horto de Plantas Medicinais da Unimontes, em fevereiro de 2011. Foram realizadas as seguintes determinaes para avaliao da qualidade fisiolgica das sementes: teor de gua, germinao, primeira contagem de germinao, emergncia de plntulas e ndice de velocidade de emergncia. O delineamento experimental utilizado foi inteiramente casualizado com quatro repeties de 50 sementes por tratamento, sendo T1- testemunha; T2 - pr esfriamento das sementes em cmara tipo BOD sob temperatura de 10C por 4 dias; T3 - embebio das sementes em gua destilada por 24 horas; T4 - embebio das sementes em soluo contendo KNO3 a 0,2 % por 5 minutos e T5 - sementes submetidas em gua destilada a temperatura de 70C por 5 minutos. Os dados foram submetidos anlise de varincia e as mdias comparadas pelo teste Scott - Knott a 5% de probabilidade. O tratamento pr esfriamento em cmara tipo BOD a 10C por 4 dias reduz a dormncia e promove incrementos na qualidade fisiolgica das sementes do manjerico.Aiming in order to assess the effectiveness of treatments to overcome dormancy in seeds of basil, an experiment was conducted at the Laboratory of Seed Analysis of Unimontes. Following determinations were performed to evaluate the physiological quality of seeds, water content, germination, first count germination, seedling emergence and emergence speed index. The experimental design was completely randomized design with four replications of 50 seeds per treatment, which consisted of: T1 - control, T2 - pre-cooling of the seed chamber BOD at a temperature of 10C for 4 days, T3 - soaking the seeds in water distilled for 24 hours, T4 - soaking the seeds in a solution containing 0,2% for 5 minutes and T5 - submitted seeds in distilled water at 70C for 5 minutes. Data were subjected to analysis of variance and the averages compared by Scott-Knott 5% probability. The pre-cooling treatment in BOD chamber at 10C for 4 days reduced dormancy and promotes increases in the physiological quality of seeds of basil.

  5. Superao de dormncia em sementes de manjerico (Ocimum basilicum L.) / Overcoming dormancy in seeds of basil (Ocimum basilicum L.)

    Scientific Electronic Library Online (English)

    H.T.R., Amaro; M.O., Assis; A.M.S.S., David; J.R, Silveira; I.C., Silva Neta; W.F., Mota.

    Full Text Available O objetivo do trabalho foi avaliar a eficincia de tratamentos pr-germinativos na superao da dormncia de sementes de manjerico, produzidas no Horto de Plantas Medicinais da Unimontes, em fevereiro de 2011. Foram realizadas as seguintes determinaes para avaliao da qualidade fisiolgica das s [...] ementes: teor de gua, germinao, primeira contagem de germinao, emergncia de plntulas e ndice de velocidade de emergncia. O delineamento experimental utilizado foi inteiramente casualizado com quatro repeties de 50 sementes por tratamento, sendo T1- testemunha; T2 - pr esfriamento das sementes em cmara tipo BOD sob temperatura de 10C por 4 dias; T3 - embebio das sementes em gua destilada por 24 horas; T4 - embebio das sementes em soluo contendo KNO3 a 0,2 % por 5 minutos e T5 - sementes submetidas em gua destilada a temperatura de 70C por 5 minutos. Os dados foram submetidos anlise de varincia e as mdias comparadas pelo teste Scott - Knott a 5% de probabilidade. O tratamento pr esfriamento em cmara tipo BOD a 10C por 4 dias reduz a dormncia e promove incrementos na qualidade fisiolgica das sementes do manjerico. Abstract in english Aiming in order to assess the effectiveness of treatments to overcome dormancy in seeds of basil, an experiment was conducted at the Laboratory of Seed Analysis of Unimontes. Following determinations were performed to evaluate the physiological quality of seeds, water content, germination, first cou [...] nt germination, seedling emergence and emergence speed index. The experimental design was completely randomized design with four replications of 50 seeds per treatment, which consisted of: T1 - control, T2 - pre-cooling of the seed chamber BOD at a temperature of 10C for 4 days, T3 - soaking the seeds in water distilled for 24 hours, T4 - soaking the seeds in a solution containing 0,2% for 5 minutes and T5 - submitted seeds in distilled water at 70C for 5 minutes. Data were subjected to analysis of variance and the averages compared by Scott-Knott 5% probability. The pre-cooling treatment in BOD chamber at 10C for 4 days reduced dormancy and promotes increases in the physiological quality of seeds of basil.

  6. Ligation of superior mesenteric vein and portal to splenic vein anastomosis after superior mesenteric-portal vein confluence resection during pancreaticoduodenectomy Case report

    OpenAIRE

    Jianlin Tang; Jihad Abbas; Katherine Hoetzl; David Allison; Mahamed Osman; Mallory Williams; Zelenock, Gerald B.

    2014-01-01

    62 year old Caucasian female with pancreatic head mass abutting the superior mesenteric vein (SMV) presented with fine needle aspiration biopsy confirmed diagnosis of ductal adenocarcinoma. CT scan showed near complete obstruction of portal vein and large SMV collateral development. After 3 months of neoadjuvant therapy, her portal vein flow improved significantly, SMV collateral circulation was diminished. Pancreaticoduodenectomy (PD) and superior mesenteric portal vein (SMPV) confluence res...

  7. Veining Failure and Hydraulic Fracturing in Shales

    Science.gov (United States)

    Mighani, S.; Sondergeld, C. H.; Rai, C. S.

    2014-12-01

    During the hydraulic fracturing, the pressurized fluid creates new fractures and reactivates existing natural fractures forming a highly conductive Stimulated Reservoir Volume (SRV) around the borehole. We extend the previous work on Lyons sandstone and pyrophyllite to anisotropic shale from the Wolfcamp formation. We divide the rock anisotropy into two groups: a) conventional and b) unconventional (shaly) anisotropy. X-ray Computed Tomography (CT), compressional velocity anisotropy, and SEM analysis are used to identify three causes of anisotropy: bedding planes, clay lamination, and calcite veins. Calcite vein is a subsequently filled with calcite bonded weakly to the matrix. Velocity anisotropy and visual observations demonstrate the calcite filled veins to be mostly subparallel to the fabric direction. Brazilian tests are carried out to observe the fracture initiation and propagation under tension. High speed photography (frame rate 300,000 frame/sec) was used to capture the failure. Strain gauges and Acoustic Emission (AE) sensors recorded the deformation leading up to and during failure. SEM imaging and surface profilometry were employed to study the post-failure fracture system and failed surface topology. Fracture permeability was measured as a function of effective stress. Brazilian tests on small disks containing a centered single vein revealed the shear strength of the veins. We interpret the strain data and number, frequency, and amplitude of AE events which are correlated well with the observed fracture process zone, surface roughness, and permeability. The unpropped fracture has enhanced permeability by two orders of magnitude. The observed anisotropic tensile failure seems to have a universal trend with a minimum strength occurring at 15o orientation with respect to the loading axis. The veins at 15o orientation with respect to the loading axis were easily activated at 30% of the original failure load. The measured strength of the vein is as low as 6% of the matrix. Surface roughness measurements show the vein to be as rough as the main tensile fracture in the matrix. The observations suggest that fracking through a deviated well reduces the breakdown pressure significantly and can activate a large number of veins with enhanced conductivity without the need for excessive proppant injection.

  8. Comparison of hemihypoglossal-facial nerve transposition with a cross-facial nerve graft and muscle transplant for the rehabilitation of facial paralysis using the facial clima method.

    Science.gov (United States)

    Hontanilla, Bernardo; Vila, Antonio

    2012-02-01

    To compare quantitatively the results obtained after hemihypoglossal nerve transposition and microvascular gracilis transfer associated with a cross facial nerve graft (CFNG) for reanimation of a paralysed face, 66 patients underwent hemihypoglossal transposition (n = 25) or microvascular gracilis transfer and CFNG (n = 41). The commissural displacement (CD) and commissural contraction velocity (CCV) in the two groups were compared using the system known as Facial clima. There was no inter-group variability between the groups (p > 0.10) in either variable. However, intra-group variability was detected between the affected and healthy side in the transposition group (p = 0.036 and p = 0.017, respectively). The transfer group had greater symmetry in displacement of the commissure (CD) and commissural contraction velocity (CCV) than the transposition group and patients were more satisfied. However, the transposition group had correct symmetry at rest but more asymmetry of CCV and CD when smiling. PMID:22455573

  9. Calidad poscosecha de albahaca 'Nufar' (Ocimum basilicum L.) en condiciones de refrigeracin / Basil 'Nufar' (Ocimum basilicum L.) post-harvest quality under refrigeration

    Scientific Electronic Library Online (English)

    Eduardo, Lpez-Blancas; Mara Teresa, Martnez-Damin; Mara Teresa, Colinas-Len; Juan, Martnez Sols; Juan Enrique, Rodrguez-Prez.

    2014-08-01

    Full Text Available El objetivo de la presente investigacin fue evaluar el efecto de la refrigeracin en la calidad poscosecha de albahaca 'Nufar'. Albahaca empacada en pelcula plstica, se almacen a 5, 10 y 20 C, por 18 das. Durante este perodo cada dos das se evaluaron: color (L, C, h), slidos solubles total [...] es, acidez titulable, prdida de peso, tasa de respiracin, produccin de etileno, clorofilas totales, carotenoides totales y vitamina C. Mediante una escala hednica se evalu: apariencia visual, turgencia, pudricin y aroma caracterstico de albahaca. Los tratamientos de refrigeracin conservaron el color hasta los 12 das de almacenamiento (DDA). En 5 y 10 C el contenido de azcares disminuy a los 14 y 10 DDA, respectivamente. En 5 C hubo menor acidez titulable y prdida de peso y mayor tasa respiratoria, la produccin de etileno fue baja hasta los 12 DDA; asimismo, preserv el mayor contenido de clorofilas y carotenoides, aunque, la vitamina C solo se conserv hasta los 4 DDA. Bajo refrigeracin la apariencia visual y turgencia fue muy buena hasta los 10 y 12 DDA, respectivamente, las pudriciones fueron mayores de 10 % despus de 10 DDA. El aroma caracterstico fue perceptible hasta los 14 DDA. El almacenamiento a 5 y 10 C, prolong la calidad poscosecha de albahaca 'Nufar' durante 10 y 14 DDA respectivamente, mientras que a 20 C, sta solo se mantuvo por 4 DDA. Abstract in english The aim of this study was to evaluate the refrigeration effect on postharvest quality of basil 'Nufar. Basil previously packaged in plastic film, was stored at 5, 10 and 20 C, for 18 days. The variables color (L, C, h), total soluble solids, titratable acidity, weight loss, respiration rate, ethyl [...] ene production, total chlorophyll, total carotenoids and vitamin C were evaluated, every two days, during the storage period. Visual appearance, turgor, rottenness and aroma of basil were evaluated using a hedonic scale. Refrigeration treatments retained the color until 12 days of storage (DOS). Sugar content decreased at 14 and 10 DOS, respectively, at 5 and 10 C. Titratable acidity and weight loss were low and respiratory rate increased, ethylene production was low until 12 DOS at 5 C; moreover it preserved the highest content of chlorophyll and carotenoids, although vitamin C was retained only until 4 DOS. Visual appearance and turgor were very good until 10 and 12 DOS, respectively; rottenness was greater than 10 % after 10 DOS, under refrigeration. The aroma was perceptible until 14 DOS. Storage at 5 and 10 C, extended the postharvest quality of basil 'Nufar' during 10 and 14 DOS respectively, while at 20 C, basil lasted only 4 DOS.

  10. Basil Bernstein y la relacin lenguaje-educacin: el caso del Semestre de Afanzamiento (SEA) de la Institucin Universitaria de Envigado / Basil Bernstein and the language-education relation: the case of the reinforcement semester (SEA, acronym in Spanish) at Institucin Universitaria de Envigado / Basil Bernstein e a relao linguagem-educaoo caso do semestre de afanamento (seja) da Instituio Universitria de Envigado

    Scientific Electronic Library Online (English)

    David Alberto, Londoo Vsquez; Luz Stella, Castaeda Naranjo.

    2011-07-01

    Full Text Available Introduo. Neste artigo, descreve-se a relao entre linguagem, famlia e educao no caso dos estudantes do Semestre de Afanamento da Instituio Universitria de Envigado no semestre 2010-II. Objetivo. estabelecer a relao entre estrato social e cultura escrita. Materiais e mtodos. Parte-se de [...] sde os conceitos de cdigo restringido e cdigo elaborado propostos por Basil Bernstein e se retoma a proposta da linguagem como uma semitica social de M.A.K Halliday. Resultados. Para verificar se o estrato social influi no entendimento leitor e na habilidade para escrever se realizaram duas provas tipo teste a 34 estudantes que estavam cursando o SEA no semestre 2010-II. Depois, foram divididos em trs grupos com respeito ao estrato social. Finalmente, se triangulou esta informao com os resultados ICFES na rea de linguagem. Concluses. Se estabeleceu uma relao entre estrato social e cultura escrita, deixando entrever a necessidade de fortalecer os ciclos de educao primria e secundria para reparar as dificuldades apresentadas nas socializaes primrias em famlias de baixos estratos, possibilitando desta forma, que os estudantes desenvolvam cdigos elaborados porque em termos gerais a uma universidade como a IUE, chegam estudantes com s o manejo do cdigo restringido. Abstract in spanish Introduccin. En este artculo, se describe la relacin entre lenguaje, familia y educacin en el caso de los estudiantes del Semestre de Afianzamiento de la Institucin Universitaria de Envigado en el semestre 2010-II. Objetivo. Establecer la relacin entre estrato social y cultura escrita. Materia [...] les y mtodos. Se parte desde los conceptos de cdigo restringido y cdigo elaborado, propuestos por Basil Bernstein, y se retoma la propuesta del lenguaje como una semitica social de M. A. K. Halliday. Resultados. Para verificar si el estrato social influye en la comprensin lectora y en la habilidad para escribir, se realizaron dos pruebas tipo test a 34 estudiantes que estaban cursando el SEA en el semestre 2010-II. Luego, fueron divididos en tres grupos con respecto al estrato social. Finalmente, se triangul esta informacin con los resultados ICFES en el rea de lenguaje. Conclusiones. Se estableci una relacin entre estrato social y cultura escrita, dejando entrever la necesidad de fortalecer los ciclos de educacin primaria y secundaria para subsanar las dificultades presentadas en las socializaciones primarias en familias de bajos estratos, posibilitando de esta forma, que los estudiantes desarrollen cdigos elaborados porque, en trminos generales, a una universidad como la IUE, llegan estudiantes con slo el manejo del cdigo restringido. Abstract in english Introduction. This article describes the relationship between language, family and education in the case of the reinforcement semester from Universitaria de Envigado during the second semester of 2010. Objective. To establish the relationship between social stratum and written culture. Materials and [...] methods. Departing from the restricted code and elaborated code concepts, proposed by Basil Bernstein, M.A.K Halliday's proposal of language as a social semiotic is re taken. Results. In order to verify if social stratum influences reading comprehension and writing skills, two 34 type tests were practiced to students that were coursing SEA in the second semester of 2010. Then, the students were divided into three groups, classified by social stratum. Finally, the information was triangulated with the ICFES tests results in the language area. Conclusions. A relationship was established between social stratum and written culture, suggesting a necessity to strengthen the primary and secondary educational cycles in order to solve the difficulties that take place among lower stratus families and thus allowing students to develop elaborated codes, because, in general terms, Institucin Universitaria de Envigado is being attended only by students who can only manage the restricted code.

  11. Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs

    DEFF Research Database (Denmark)

    Thim, Troels; Hagensen, Mette Kallestrup; Horlyck, Arne; Drouet, Ludovic; Paaske, William P; Botker, Hans Erik; Falk, Erling

    2012-01-01

    ABSTRACT: BACKGROUND: Accelerated atherosclerosis is the main cause of late aortocoronary vein graft failure. We aimed to develop a large animal model for the study of pathogenesis and treatment of vein graft atherosclerosis. METHODS: An autologous reversed jugular vein graft was inserted end......-to-end into the transected common carotid artery of ten hypercholesteroemic minipigs. The vein grafts were investigated 12-14 weeks later with ultrasound and angiograpy in vivo and microscopy post mortem. RESULTS: One minipig died during follow up (patent vein graft at autopsy), and one vein graft thrombosed...... early. In the remaining eight patent vein grafts, the mean (standard deviation) intima-media thickness was 712 mum (276 mum) versus 204 mum (74 mum) in the contralateral control internal jugular veins (P <.01). Advanced atherosclerotic plaques were found in three of four oversized vein grafts (diameter...

  12. Cognitive function and age at repair of transposition of the great arteries in children.

    Science.gov (United States)

    Newburger, J W; Silbert, A R; Buckley, L P; Fyler, D C

    1984-06-01

    To assess the effect of the duration of chronic hypoxemia on cognitive function, we studied 38 children with d-transposition of the great arteries and an intact ventricular septum who underwent corrective surgery at six months to six years of age (median, 1.6 years). Tests included the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) in 33 children and the visual-association and auditory-association subtests of the Illinois Test of Psycholinguistic Abilities in 38 and 37 children, respectively. When controlled for social index, age at repair was inversely associated with the WPPSI intelligence-quotient score (P less than 0.01), the visual-association subtest score (P less than 0.01), and the auditory-association subtest score (P less than 0.1). In contrast, age at repair correlated poorly with cognitive function in children with ventricular septal defect, an acyanotic congenital heart defect. These data suggest that postponing repair of a cyanotic congenital heart disease, such as transposition of the great arteries, is associated with progressive impairment of cognitive function. PMID:6717539

  13. Penatalaksanaan Anestesi Pasien Transposition of the Great Arteries pada Operasi Mouth Preparation

    Directory of Open Access Journals (Sweden)

    Ade Arya Nugraha

    2014-08-01

    Full Text Available Transposition of the great arteries (TGA results from failure of the truncus arteriosus to spiral, so that the aorta arises from the anterior portion of the right ventricle and the pulmonary artery arises from the left ventricle. TGA which is the type of cyanotic congenital heart disease. A girl of 4 years came for treatment and tooth extraction as preparation for the surgical correction of TGA at the Dr. Hasan Sadikin Hospital Bandung within January 2014. Patient with a history of blue when she was a baby and on physical examination found the child looking cyanosis, SpO2 7080%, sistolic murmur and clubbing finger. Abnormalities on echocardiography obtained TGA. Anesthetic management of this patients was performed using ketamine and vecuronium for induction and maintenance with O2, N2O, and sevoflurane. Cyanotic attacks can occur preoperative, intraoperative, and post operative, which was treated by increasing systemic vascular resistance (SVR compared to pulmonary vascular resistance. In conclusions, perioperative management principal for non cardiac surgery on transposition of the great arteries (TGA is to keep SVR from decline and increase on PVR.

  14. Letter transpositions within and across morphemic boundaries: is there a cross-language difference?

    Science.gov (United States)

    Snchez-Gutirrez, Claudia; Rastle, Kathleen

    2013-10-01

    Research on the impact of letter transpositions that arise across morpheme boundaries has yielded conflicting results. These results have led to the suggestion that a cross-linguistic difference may exist in the recognition of Spanish and English words. In two masked-priming experiments run on separate groups of Spanish and English speakers, we tested this hypothesis by comparing the impacts of primes with letter transpositions that arose within morphemes or across morpheme boundaries on the recognition of identical or near-identical Spanish-English cognate targets. The results showed transposed-letter benefits in both Spanish and English that were not modulated by the position of the transposed letter in the prime stimulus. Our findings therefore add to the growing body of literature suggesting that the transposed-letter benefit is not affected by the position of the transposed letters relative to the morpheme boundary, and they dispel previous suggestions that there might be a genuine difference in orthographic coding across the Spanish and English writing systems. PMID:23543423

  15. Isolated Cortical Vein Thrombosis - The Cord Sign

    Directory of Open Access Journals (Sweden)

    Vijay K Sharma

    2009-03-01

    Full Text Available

    Isolated cortical vein thrombosis is an uncommon condition and often difficult to diagnose, both clinically and radiologically. We report a case of a 38 years old man who presented with headache of new onset and clinical examination was unremarkable. The unenhanced brain CT did not reveal any abnormality. In view of unrelenting headache and partial seizures, we performed magnetic resonance imaging (with axial T1, T2 and gradient echo sequences, coronal FLAIR, diffusion weighted imaging as well as Gadolinium contrast-enhanced images and magnetic resonance venography of the brain that revealed an isolated parietal cortical vein thrombosis with the rarely reported 'cord sign'. We report the clinical and radiological findings in our patient with isolated parietal cortical vein thrombosis.

  16. Undergraduate Sustainable Learning: Effects of Sustainable Soilless Media on Production and Sensory Evaluation of Cucumbers, Basil, Parsley, and Lettuce

    Directory of Open Access Journals (Sweden)

    Victoria Russell

    2011-08-01

    Full Text Available Modern greenhouse production has been ~100% reliant on fossil fuels for all inputs (glazing, heating, fertilization, lighting, post-harvest. Recent innovations may reduce fossil fuel dependence but their effectiveness may not be thoroughly tested. To promote education in sustainable production, undergraduate students in Greenhouse Management class (Hort 3002W; University of Minnesota tested the effectiveness of two organic or sustainable soilless media (Sunshine Natural and Organic Growing Mix, Sungro Metro-Mix Special Blend with a control (Sunshine LC8 Professional for crop production (height, leaf/flower number, yield and sensory evaluations (appearance, texture, taste, purchase of cucumbers (Big Burpless Hybrid, Sweet Burpless Hybrid, basil (Opal Purple, Redleaf, parsley (Green River, Extra Curled Dwarf, Hamburg, and lettuce (Flying Saucer Green, Red. Significant differences between sustainable vs. control soils occurred for plant growth, depending on vegetative or reproductive traits, crops, and cultivars. These differences occasionally disappeared for sensory evaluation of edible components. In most crops, however, cultivars were highly significant factors. Undergraduate research can be used to provide directionality for future vegetable and herb plant breeding to focus on creating cultivars with increased yield and high consumer acceptance when grown in sustainable greenhouse soilless mixes.

  17. Successful liver allograft inflow reconstruction with the right gastroepiploic vein.

    Science.gov (United States)

    Pinheiro, Rafael S; Cruz, Ruy J; Nacif, Lucas S; Vane, Matheus F; D'Albuquerque, Luiz Ac

    2016-02-01

    Portal vein thrombosis is a common complication in cirrhotic patients. When portal vein thrombectomy is not a suitable option, a large collateral vessel can be used for allograft venous inflow reconstruction. We describe an unusual case of successful portal revascularization using the right gastroepiploic vein. The patient underwent a cadaveric orthotopic liver transplantation with end-to-end anastomosis of the portal vein to the right gastroepiploic vein. Six months after liver transplantation the patient is well with good liver function. The use of the right gastroepiploic vein for allograft venous reconstruction is feasible and safe, with a great advantage of avoiding the need of venous jump graft. PMID:26818551

  18. Surgical treatment of central retinal vein occlusion.

    Science.gov (United States)

    Berker, Nilufer; Batman, Cosar

    2008-05-01

    The treatment of central retinal vein occlusion (CRVO) is still a subject of debate. Medical therapy efforts, as well as retinal laser photocoagulation, have mostly dealt with management of the sequelae of CRVO, and have shown limited success in improving visual acuity. The unsatisfactory results of such therapeutic efforts led to the development of new treatment strategies focused on the surgical treatment of the occluded retinal vein. The purpose of this review is to summarize the outcomes of commonly reported surgical treatment strategies and to review different opinions on the various surgical approaches to the treatment of CRVO. PMID:18494725

  19. Superficial Vein Thrombophlebitis in a Football Athlete.

    Science.gov (United States)

    Schleich, Kevin T; Smoot, M Kyle

    2016-03-01

    A 22-year-old professional football player presented to a preparticipation physical examination with a 2-week history of left leg discomfort extending from the groin to the knee over the previous 2 weeks. He was found to have superficial vein thrombophlebitis (SVT) of the left great saphenous vein extending from the knee to within approximately 1.6 cm of the saphenofemoral junction. There is paucity in the literature regarding the management of SVT, particularly in actively training athletes. This case addresses the considerations of anticoagulation management for SVT as well as the unique challenge of managing anticoagulation therapy in an athlete that is actively training. PMID:25961158

  20. Effect of Diameter of Saphenous Vein on Stump Length after Radiofrequency Ablation for Varicose Vein

    Science.gov (United States)

    Kim, Jusung; Cho, Sungsin; Joh, Jin Hyun; Ahn, Hyung-Joon; Park, Ho-Chul

    2015-01-01

    Purpose: Radiofrequency ablation (RFA) has gained popularity for treatment of varicose veins. The diameter of the saphenous vein should be considered before RFA because occlusion of the vein may differ depending on its diameter. Until now, however, there have been few data about the correlation between the diameter of the saphenous vein and the stump length after RFA. The purpose of our study was to investigate its correlation. Materials and Methods: A retrospective review was performed from prospectively collected data of RFA patients between March 2009 and December 2011. Preoperatively, the saphenous vein diameter was measured. Ablation was initiated 2 cm distal from the junction. Postoperatively, stump length was measured at 1 week and 6 months. After 2 years, we measured the length from the saphenofemoral junction to the leading point of occlusion for great saphenous vein, and length from the saphenopopliteal junction to the leading point of occlusion for small saphenous vein. The paired t-test, independent t-test, and correlation analysis were used for statistical analysis. P-value <0.05 was considered statistically significant. Results: During the study period, RFA was performed in 201 patients. Endovenous heat-induced thrombosis developed in 3 patients (1.5%). After 2 years, the stump length was obtained in 74 limbs. The mean diameter and stump length of the saphenous vein were 6.71.8 mm and 12.58.5 mm, respectively. Correlation analysis showed that the Pearson correlation coefficient of these factors was ?0.017. Conclusion: There was no correlation between the diameter of saphenous vein and stump length. PMID:26719839

  1. Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs

    Directory of Open Access Journals (Sweden)

    Thim Troels

    2012-03-01

    Full Text Available Abstract Background Accelerated atherosclerosis is the main cause of late aortocoronary vein graft failure. We aimed to develop a large animal model for the study of pathogenesis and treatment of vein graft atherosclerosis. Methods An autologous reversed jugular vein graft was inserted end-to-end into the transected common carotid artery of ten hypercholesteroemic minipigs. The vein grafts were investigated 12-14 weeks later with ultrasound and angiograpy in vivo and microscopy post mortem. Results One minipig died during follow up (patent vein graft at autopsy, and one vein graft thrombosed early. In the remaining eight patent vein grafts, the mean (standard deviation intima-media thickness was 712 ?m (276 ?m versus 204 ?m (74 ?m in the contralateral control internal jugular veins (P diameter of artery. No plaques were found in four non-oversized vein grafts (P Conclusions Our model of jugular vein graft in the common carotid artery of hypercholesterolemic minipigs displayed the components of human vein graft disease, i.e. thrombosis, intimal hyperplasia, and atherosclerosis. Advanced atherosclerosis, the main cause of late failure of human aortocoronary vein grafts was only seen in oversized grafts. This finding suggests that oversized vein grafts may have detrimental effects on patient outcome.

  2. Transposicin digital en el tratamiento de la macrodactilia / Transposition digitale dans le traitement de la macrodactilie / Digital transposition in the treatment of macrodactyly

    Scientific Electronic Library Online (English)

    Rodrigo, lvarez Cambras; Livn, Pea Marrero; Haysell, Lpez Daz; Rolando, Hernndez Gonzlez; Orlando, Hernndez Espinosa; Enrique, Vega Fernndez.

    2002-12-01

    Full Text Available Paciente afectada de macrodactilia progresiva del III dedo de la mano derecha diagnosticada al nacer, sin antecedentes hereditarios ni teratolgicos. Se le realiz tratamiento quirrgico consiste en amputacin en rayo del III dedo de la mano derecha y transposicin del ndice a la base de ste, seg [...] n la tcnica de Peacock modificada. Se logr consolidacin a las 4 semanas de operada, a las 9 semanas realiz todos los movimientos de los dedos con mxima amplitud. No hubo complicaciones posoperatorias. El aspecto esttico de la mano result excelente. Hubo una gran satisfaccin familiar. A los 18 meses de operada no hubo recidiva y realiz todas sus actividades con excelente fuerza y precisin en los movimientos. Abstract in english The case of a patient suffering from progressive macrodactyly of the third finger of the right hand diagnosed at birth without hereditary or teratological antecedents is presented. Surgical treatment consisted in the ray amputation of the third finger of the right hand and transposition of the index [...] finger to the base of it by Peacocks modified technique. Consolidation was attained 4 weeks after surgery. She was able to make all the movements of the fingers with maximum amplitude at 9 weeks. There were no postsurgical complications. On the 18th month, she had no relapse and she carried out all her activities with excellent strength and precision in the movements.

  3. An unusual case: right proximal ureteral compression by the ovarian vein and distal ureteral compression by the external iliac vein

    Directory of Open Access Journals (Sweden)

    Halil Ibrahim Serin

    2015-12-01

    Full Text Available A 32-years old woman presented to the emergency room of Bozok University Research Hospital with right renal colic. Multidetector computed tomography (MDCT showed compression of the proximal ureter by the right ovarian vein and compression of the right distal ureter by the right external iliac vein. To the best of our knowledge, right proximal ureteral compression by the ovarian vein together with distal ureteral compression by the external iliac vein have not been reported in the literature. Ovarian vein and external iliac vein compression should be considered in patients presenting to the emergency room with renal colic or low back pain and a dilated collecting system.

  4. Inferior Alveolar Nerve Lateralization and Transposition for Dental Implant Placement. Part I: a Systematic Review of Surgical Techniques

    Directory of Open Access Journals (Sweden)

    Boris Abayev

    2015-03-01

    Full Text Available Objectives: The purpose of this first part of a two-part series was to review the literature concerning the indications, contraindications, advantages, disadvantages and surgical techniques of the lateralization and transposition of the inferior alveolar nerve, followed by the placement of an implant in an edentulous atrophic posterior mandible. Material and Methods: A comprehensive review of the current literature was conducted according to the PRISMA guidelines by accessing the NCBI PubMed and PMC database, academic sites and books. The articles were searched from January 1997 to July 2014 and comprised English-language articles that included adult patients between 18 and 80 years old with minimal residual bone above the mandibular canal who had undergone inferior alveolar nerve (IAN repositioning with a minimum 6 months of follow-up. Results: A total of 16 studies were included in this review. Nine were related to IAN transposition, 4 to IAN lateralization and 3 to both transposition and lateralization. Implant treatment results and complications were presented. Conclusions: Inferior alveolar nerve lateralization and transposition in combination with the installation of dental implants is sometimes the only possible procedure to help patients to obtain a fixed prosthesis, in edentulous atrophic posterior mandibles. With careful pre-operative surgical and prosthetic planning, imaging, and extremely precise surgical technique, this procedure can be successfully used for implant placement in edentulous posterior mandibular segments.

  5. A 5-methylcytosine DNA glycosylase/lyase demethylates the retrotransposon Tos17 and promotes its transposition in rice

    KAUST Repository

    La, Honggui

    2011-09-06

    DNA 5-methylcytosine (5-meC) is an important epigenetic mark for transcriptional gene silencing in many eukaryotes. In Arabidopsis, 5-meC DNA glycosylase/lyases actively remove 5-meC to counter-act transcriptional gene silencing in a locus-specific manner, and have been suggested to maintain the expression of transposons. However, it is unclear whether plant DNA demethylases can promote the transposition of transposons. Here we report the functional characterization of the DNA glycosylase/lyase DNG701 in rice. DNG701 encodes a large (1,812 amino acid residues) DNA glycosylase domain protein. Recombinant DNG701 protein showed 5-meC DNA glycosylase and lyase activities in vitro. Knockout or knockdown of DNG701 in rice plants led to DNA hypermethylation and reduced expression of the retrotransposon Tos17. Tos17 showed less transposition in calli derived from dng701 knockout mutant seeds compared with that in wild-type calli. Overexpression of DNG701 in both rice calli and transgenic plants substantially reduced DNA methylation levels of Tos17 and enhanced its expression. The overexpression also led to more frequent transposition of Tos17 in calli. Our results demonstrate that rice DNG701 is a 5-meC DNA glycosylase/lyase responsible for the demethylation of Tos17 and this DNA demethylase plays a critical role in promoting Tos17 transposition in rice calli.

  6. A 5-methylcytosine DNA glycosylase/lyase demethylates the retrotransposon Tos17 and promotes its transposition in rice

    Science.gov (United States)

    La, Honggui; Ding, Bo; Mishra, Gyan P.; Zhou, Bo; Yang, Hongmei; Bellizzi, Maria del Rosario; Chen, Songbiao; Meyers, Blake C.; Peng, Zhaohua; Zhu, Jian-Kang; Wang, Guo-Liang

    2011-01-01

    DNA 5-methylcytosine (5-meC) is an important epigenetic mark for transcriptional gene silencing in many eukaryotes. In Arabidopsis, 5-meC DNA glycosylase/lyases actively remove 5-meC to counteract transcriptional gene silencing in a locus-specific manner, and have been suggested to maintain the expression of transposons. However, it is unclear whether plant DNA demethylases can promote the transposition of transposons. Here we report the functional characterization of the DNA glycosylase/lyase DNG701 in rice. DNG701 encodes a large (1,812 amino acid residues) DNA glycosylase domain protein. Recombinant DNG701 protein showed 5-meC DNA glycosylase and lyase activities in vitro. Knockout or knockdown of DNG701 in rice plants led to DNA hypermethylation and reduced expression of the retrotransposon Tos17. Tos17 showed less transposition in calli derived from dng701 knockout mutant seeds compared with that in wild-type calli. Overexpression of DNG701 in both rice calli and transgenic plants substantially reduced DNA methylation levels of Tos17 and enhanced its expression. The overexpression also led to more frequent transposition of Tos17 in calli. Our results demonstrate that rice DNG701 is a 5-meC DNA glycosylase/lyase responsible for the demethylation of Tos17 and this DNA demethylase plays a critical role in promoting Tos17 transposition in rice calli. PMID:21896764

  7. Unilateral Recession-Resection Surgery with Inferior Displacement Combined with Augmented Anterior Transposition of Inferior Oblique Muscle

    OpenAIRE

    Hong, Samin; Hong, Young Taek; Seong, Gong Je; Han, Sueng-Han

    2010-01-01

    We report the effects of unilateral recession-resection surgery of the horizontal recti muscles with inferior displacement and augmented anterior transposition of the inferior oblique muscle with a posterior intermuscular suture in a patient with large exotropia and considerable hypertropia.

  8. Complete transposition of the aorta and pulmonary artery in a Belgian Blue crossbreed calf: A case report

    Directory of Open Access Journals (Sweden)

    Weerts Erik AWS

    2011-05-01

    Full Text Available Abstract Background Complete transposition of the great arteries is a congenital cardiac malformation occasionally encountered in cattle and other species. The objective of the present report was to provide a detailed clinical, echocardiographic and post mortem description of a calf presenting with this condition. Case presentation A 6-week old male Belgian Blue cross-breed calf was examined for respiratory distress and exercise intolerance. The patient was bright, alert and responsive without any neurologic abnormalities but was exercise intolerant, had marked cyanosis, tachycardia, tachypnea, a pansystolic heart murmur as well as a bilaterally palpable thrill over the heart. Arterial blood gas analysis revealed marked hypoxemia (PaO2 = 23 mmHg, O2sat = 41.1%, mild hypercapnia and compensated respiratory acidosis. Echocardiographic examination revealed a complete transposition of the great arteries in combination with a ventricular septal defect through which blood shunted bidirectionally. Cardiac catheterization confirmed that arterialization of blood of the systemic circulation solely occurred in the right ventricle through blood shunting from the left into the right ventricle. Results of post mortem examination are presented. Conclusion Complete transposition of the great arteries is a cyanotic congenital anomaly repeatedly reported in calves that should be considered as differential diagnosis in patients presenting with hypoxemia more severe than commonly encountered with other congenital cyanotic heart conditions. We give a comprehensive summary of the clinical presentation, diagnostic work-up and post mortem examination of a Belgian Blue cross-breed calf with complete transposition of the great arteries

  9. Long term follow-up of medial column fusion and tibialis anterior transposition for adolescent flatfoot deformity.

    OpenAIRE

    Sekiya, J. K.; Saltzman, C. L.

    1997-01-01

    We report the results of three patients (four feet) who had surgical correction of adolescent flatfeet performed over fifty years ago. The surgery involved medial column stabilization with fusion procedures and tibialis anterior transposition into the navicular (Young's tenosuspension procedure). In this small sample, we found a high rate of painful arthrosis that developed over time in the contiguous joints of the foot.

  10. Double Aortic Arch in D-Transposition of the Great Arteries: Confirmation of Dominant Arch by Magnetic Resonance Imaging

    OpenAIRE

    McMahon, Colin J.; Bezold, Louis I.; Vick, Giles W.

    2000-01-01

    We report the case of a female infant who had the rare combination of double aortic arch and D-transposition of the great arteries. The double aortic arch was diagnosed at the time of her arterial switch procedure. Magnetic resonance imaging identified the left arch as dominant, and the right arch was successfully ligated.

  11. Risk factors of thrombosis in abdominal veins

    Directory of Open Access Journals (Sweden)

    Amit Kumar Dutta, Ashok Chacko, Biju George, Joseph Anjilivelil Joseph, Sukesh Chandran Nair, Vikram Mathews

    2008-07-01

    Full Text Available AIM: To estimate the prevalence of inherited and acquired thrombophilic risk factors in patients with abdominal venous thrombosis and to compare the risk factor profiles between Budd-Chiari syndromes (BCS and splanchnic vein thrombosis (SVT.METHODS: In this retrospective study, 36 patients with abdominal venous thrombosis were studied. The patients were divided into Budd-Chiari group (hepatic vein, IVC thrombosis and splanchnic venous thrombosis group (portal, splenic, superior mesenteric veins based on the veins involved. Hereditary and acquired thrombophilic risk factors were evaluated in all patients.RESULTS: Twenty patients had SVT, 14 had BCS, and 2 had mixed venous thrombosis. Ten patients (28% had hereditary and 10 patients (28% acquired thrombophilic risk factors. The acquired risk factors were significantly more common in the SVT group (SVT vs BCS: 45% vs 7%, ?2 = 5.7, P = 0.02 while hereditary risk factors did not show significant differences between the two groups (SVT vs BCS: 25% vs 36%, ?2 = 0.46, P = 0.7. Multiple risk factors were present in one (7% patient with BCS and in 3 patients (15% with SVT. No risk factors were identified in 57% of patients with BCS and in 45% of patients with SVT.CONCLUSION: Hereditary and acquired risk factors play an important role in the etiopathogenesis of abdominal venous thrombosis. Acquired risk factors are significantly more common in SVT patients while hereditary factors are similar in both groups.

  12. Endoscopic vein harvesting: technique, outcomes, concerns & controversies.

    Science.gov (United States)

    Raja, Shahzad G; Sarang, Zubair

    2013-11-01

    The choice of the graft conduit for coronary artery bypass grafting (CABG) has significant implications both in the short- and long-term. The patency of a coronary conduit is closely associated with an uneventful postoperative course, better long-term patient survival and superior freedom from re-intervention. The internal mammary artery is regarded as the primary conduit for CABG patients, given its association with long-term patency and survival. However, long saphenous vein (LSV) continues to be utilized universally as patients presenting for CABG often have multiple coronary territories requiring revascularization. Traditionally, the LSV has been harvested by creating incisions from the ankle up to the groin termed open vein harvesting (OVH). However, such harvesting methods are associated with incisional pain and leg wound infections. In addition, patients find such large incisions to be cosmetically unappealing. These concerns regarding wound morbidity and patient satisfaction led to the emergence of endoscopic vein harvesting (EVH). Published experience comparing OVH with EVH suggests decreased wound related complications, improved patient satisfaction, shorter hospital stay, and reduced postoperative pain at the harvest site following EVH. Despite these reported advantages concerns regarding risk of injury at the time of harvest with its potential detrimental effect on vein graft patency and clinical outcomes have prevented universal adoption of EVH. This review article provides a detailed insight into the technical aspects, outcomes, concerns, and controversies associated with EVH. PMID:24251019

  13. Left renal vein compression syndrome ('nutcracker phenomenon')

    International Nuclear Information System (INIS)

    Four cases are presented with clinical diagnosis of scrotal varicocele on the left side, and one case with ureter varices and left-sided haematuria as a result of compression of the left renal vein between the aorta and superior mesenteric artery (SMA), also known as 'nutcracker phenomenon'. The clinical signs and the radiological diagnostic methods of the condition are discussed. (orig.)

  14. Production of Carbon Nanotubes Using Vein Graphite

    Directory of Open Access Journals (Sweden)

    Lilantha Samaranayake, Nilwala Kottegoda, A.R. Kumarasinghe, Veranja Karunaratne

    2014-07-01

    Full Text Available Carbon nanotubes (CNT are produced from a rare variety of natural vein graphite (VG distinctive to Sri Lanka using electric arc discharge. Electric arc-discharge produces both single walled and multi walled nanotubes. The products are characterized using high resolution electron microscopy and Raman spectroscopy for verification and validation

  15. Estudo anatmico da veia braquial comum como via de drenagem colateral do membro superior / Anatomic study of the common brachial vein as a collateral drainage channel of the upper limb

    Scientific Electronic Library Online (English)

    Carlos Adriano Silva dos, Santos; Luiz Francisco Poli de, Figueiredo; Luiz Carlos Buarque de, Gusmo; Aldemar Arajo, Castro; Guilherme Benjamin Brando, Pitta; Fausto, Miranda Jr; rica Carla Figueirdo de, Souza.

    2011-03-01

    Full Text Available CONTEXTO: Traumatismos ou tromboses que possam evoluir com alteraes da drenagem venosa do membro superior, dependendo do territrio interrompido, podem ter como mecanismo compensatrio uma via colateral de drenagem sem que haja prejuzo para o retorno venoso desse membro. A veia braquial comum apr [...] esenta-se como uma alternativa plausvel e pouco conhecida. OBJETIVO: Descrever a anatomia da veia braquial comum como via de drenagem colateral no membro superior. MTODOS: Utilizamos 30 cadveres do sexo masculino, cujos membros superiores estavam articulados ao tronco, no importando a raa, formolizados e mantidos em conservao com soluo de formol a 10%. Utilizamos como critrios de excluso cadveres com um dos membros desarticulado ou alteraes deformantes em topografia das estruturas estudadas. RESULTADOS: A veia braquial comum esteve presente em 73% (22/30) dos cadveres estudados, sendo que em 18% (04/22) dos casos drenou para a veia baslica no seguimento proximal do brao e em 82% (18/22), para a veia axilar. CONCLUSO: A veia braquial comum est frequentemente presente e, na maior parte das vezes, desemboca na veia axilar. Abstract in english BACKGROUND: Trauma and thrombosis that can result in changes in the venous drainage of the upper limb, depending on the vascular territory interrupted, may have as a compensatory mechanism a collateral drainage channel that prevents damage to the venous return of that limb. The common brachial vein [...] is a plausible and little known collateral channel for this purpose. OBJECTIVE: To describe the anatomy of the common brachial vein as a collateral drainage channel of the upper limb. METHODS: We have dissected 30 cadavers of people of different races, whose upper limbs were articulated to the trunk and preserved in a 10% formaldehyde solution. The exclusion criteria were disarticulated limbs or deformities in the topography of the studied structures. RESULTS: The common brachial vein was present in 73% (22/30) of the cadavers dissected. The common brachial vein drained into the axillary vein in 82% (18/22) and into the basilic vein in the proximal segment of the upper limb in 18% of the cadavers (04/22). CONCLUSION: The common brachial vein is frequently present, and, in most cases, it drains into the axillary vein.

  16. Comparison between mechanical properties of human saphenous vein and umbilical vein

    Directory of Open Access Journals (Sweden)

    Hamedani Borhan

    2012-08-01

    Full Text Available Abstract Background As a main cause of mortality in developed countries, Coronary Artery Disease (CAD is known as silent killer with a considerable cost to be dedicated for its treatment. Coronary Artery Bypass Graft (CABG is a common remedy for CAD for which different blood vessels are used as a detour. There is a lack of knowledge about mechanical properties of human blood vessels used for CABG, and while these properties have a great impact on long-term patency of a CABG. Thus, studying these properties, especially those of human umbilical veins which have not been considered yet, looks utterly necessary. Methods Umbilical vein, as well as human Saphenous vein, are respectively obtained after cesarean and CABG. First, histological tests were performed to investigate different fiber contents of the samples. Having prepared samples carefully, force-displacement results of samples were rendered to real stressstrain measurements and then a fourth-order polynomial was used to prove the non-linear behavior of these two vessels. Results Results were analyzed in two directions, i.e. circumferentially and longitudinally, which then were compared with each other. The comparison between stiffness and elasticity of these veins showed that Saphenous veins stiffness is much higher than that of umbilical vein and also, it is less stretchable. Furthermore, for both vessels, longitudinal stiffness was higher than that of circumferential and in stark contrast, stretch ratio in circumferential direction came much higher than longitudinal orientation. Conclusion Blood pressure is very high in the region of aorta, so there should be a stiff blood vessel in this area and previous investigations showed that stiffer vessels would have a better influence on the flow of bypass. To this end, the current study has made an attempt to compare these two blood vessels stiffness, finding that Saphenous vein is stiffer than umbilical vein which is somehow as stiff as rat aortic vessels. As blood vessels stiffness is directly related to elastin and mainly collagen content, results showed the lower amount of these two contents in umbilical vein regarding Saphenous vein.

  17. Finger-Vein Verification Based on Multi-Features Fusion

    OpenAIRE

    Chengbo Yu; Xinyuan Liang; Xiping He; Huafeng Qin; Lian Xue; Lan Qin

    2013-01-01

    This paper presents a new scheme to improve the performance of finger-vein identification systems. Firstly, a vein pattern extraction method to extract the finger-vein shape and orientation features is proposed. Secondly, to accommodate the potential local and global variations at the same time, a region-based matching scheme is investigated by employing the Scale Invariant Feature Transform (SIFT) matching method. Finally, the finger-vein shape, orientation and SIFT features are combined to ...

  18. Stainless steel micro needle for retinal vein cannulation

    OpenAIRE

    Willekens, Koen; Gijbels, Andy; Vander Poorten, Emmanuel; Reynaerts, Dominiek; Stalmans, Peter

    2015-01-01

    Purpose: The current management of retinal vein occlusion consists mainly of treating its complications instead of the The current management of retinal vein occlusion consists mainly of treating its complications instead of the cause. Although successful blood clot removal via retinal vein cannulation using glass micropipettes has been reported, cause. Although successful blood clot removal via retinal vein cannulation using glass micropipettes has been reported, such glass design is frag...

  19. Evaluation of left renal vein entrapment using multidetector computed tomography

    Energy Technology Data Exchange (ETDEWEB)

    Poyraz, Ahmet K.; Onur, Mehmet R. [Dept. of Radiology, Firat Univ. School of Medicine, Elazig (Turkey)], e-mail: akursadpoyraz@yahoo.com.tr; Firdolas, Fatih [Dept. of Urology, Firat Univ. School of Medicine, Elazig (Turkey); Kocakoc, Ercan [Dept. of Radiology, Bezmialem Vakif Univ., School of Medicine, Istanbul (Turkey)

    2013-03-15

    Background: Nutcracker syndrome, also called left renal vein entrapment syndrome, is a cause of non-glomerular hematuria with difficulties in diagnosis. Multidetector computed tomography (MDCT) is a powerful tool to prevent unnecessary diagnostic procedures. Purpose: To retrospectively determine the prevalence of nutcracker phenomenon and nutcracker syndrome seen in MDCT in consecutive patients. Material and Methods: The institutional review board approved the study and waived the requirement for informed consent. Abdominal contrast-enhanced MDCT scans were reviewed from 1000 consecutive patients. MDCT scan assessment included renal vein diameter measurements and evaluation for the presence of anterior or posterior left renal vein entrapment. Electronic medical records and urine analysis reports of patients with left renal vein entrapment were reviewed. Student's t test was used to assess differences in renal vein diameter in patients with left renal vein entrapment. Results: Left renal vein entrapment was observed in 10.9% (109), retroaortic left renal vein in 6.5% (65), entrapment of left renal vein between superior mesenteric artery and aorta in 4.1% (41), and circumaortic left renal vein in 0.3% (3) of patients. Mean diameters of right (8.8 {+-} 1.9 mm) and unentrapped left (8.9 {+-} 1.8 mm) renal veins were not significantly different (P = 0.1). The mean diameter of anterior entrapped left renal veins (10.3 {+-} 2 mm) was significantly greater (P = 0.04) than contralateral renal veins (8.6 {+-} 2.1 mm) in their widest portion. In 8.8% of patients with the left renal vein entrapment, urine analysis showed isomorphic hematuria or proteinuria with no other known cause. Varicocele and pelvic congestion were seen in 5.5% of patients with the left renal vein entrapment. Conclusion: Left renal vein entrapment is not a rare entity and renal nutcracker phenomenon might be underdiagnosed.

  20. Oversized vein grafts develop advanced atherosclerosis in hypercholesterolemic minipigs

    OpenAIRE

    Thim Troels; Hagensen Mette; Hrlyck Arne; Drouet Ludovic; Paaske William P; Btker Hans; Falk Erling

    2012-01-01

    Abstract Background Accelerated atherosclerosis is the main cause of late aortocoronary vein graft failure. We aimed to develop a large animal model for the study of pathogenesis and treatment of vein graft atherosclerosis. Methods An autologous reversed jugular vein graft was inserted end-to-end into the transected common carotid artery of ten hypercholesteroemic minipigs. The vein grafts were investigated 12-14 weeks later with ultrasound and angiograpy in vivo and microscopy post mortem. R...

  1. EndoVascular Laser Therapy (EVLT) of Varicose Veins

    OpenAIRE

    S. Akhlaghpour; M.R. Zafar Ghandi; M. Ebrahimi; Alinaghizadeh

    2005-01-01

    Introduction & Background: Tens of millions of people up to 40% of women and 25% of men suffer from lower limb varicose veins. Several risk factors are also identified including genetics, gender, age, obesity, hor-mones, pregnancy, and occupation. Sclerotheraphy is commonly used to treat small varicose veins. Medium-sized and large varicose veins can be removed by a surgical procedure called Stab avulsion or phlebectomy. EVLT is a new alternative surgical method for varicose veins. Pa...

  2. The Laterality of Deep Vein Thrombosis in the Pelvic and Lower Extremity Veins

    OpenAIRE

    Shin, Ha Song; Park, Jong Kwon

    2014-01-01

    Purpose: This study aimed to determine whether deep vein thrombosis (DVT) predominantly occurred on a particular side in the pelvic and lower extremity veins. Materials and Methods: Among 259 consecutive patients with leg swelling, 65 were confirmed to have DVT in the pelvis and lower extremities, and enrolled in this study. The serum levels of initial D-dimer, antithrombin III, tissue plasminogen activator, factor VIII, proteins C and S, anticardiolipin antibodies immunoglobulin (Ig) G and I...

  3. Unusual alpha-adrenoceptor subtype in canine saphenous vein: comparison to mesenteric vein.

    OpenAIRE

    Daniel, E. E.; Low, A M; Gaspar, V; Lu-Chao, H; Green, J.; Akrong, J; Duerksen, S; Soyka, C.; Chen, C. K.; Boyd, J.; Kwan, C. Y.

    1996-01-01

    1. We investigated the nature of the adrenoceptors in the dog saphenous vein (DSV) and dog mesenteric vein (DMV) to determine the nature of the unexpected interactions of phenylephrine and methoxamine with rauwolscine in the DSV, i.e. the ability of the putative alpha 2-adrenoceptor antagonist to inhibit competitively contractions to these alpha 1-agonists. Radioligand binding studies were performed in parallel with contractility studies. 2. Functionally, in the DSV, phenylephrine and methoxa...

  4. Veia gstrica posterior: hipertenso porta Posterior gastric vein: portal hipertension

    Directory of Open Access Journals (Sweden)

    Alcino Lzaro da Silva

    1999-10-01

    Full Text Available A veia gstrica posterior no muito citada nos livros de anatomia e nos trabalhos sobre hipertenso porta. Estudou-se sua anatomia, freqncia e desembocadura. Ela foi encontrada em 54% dos casos e, em 100%, desembocava na veia esplnica. Discute-se a vantagem ou no de sua ligadura ou preservao no tratamento cirrgico da hipertenso porta.The posterior gastric vein has not been mentioned very often neither in anatomy textbooks nor in portal hypertension papers. The authors studied the anatomy, frequency and confluence of this vein because is a huge variety in the presentation of esophageal varices. Twenty-six adult preserved corpses (twenty females and six males had a wide abdominal incision allowing the dissection of the portal system, identifying the frequency and confluence of its tributaries, notably the posterior gastric vein. The portal vein, in all cases, was formed by the confluence of the superior mesenteric vein with the splenic vein and had a mean length of 6.4 cm. The splenic vein had a mean length of 6.5 cm. The left gastric vein was tributary of the portal vein in 50% of the cases and in 30% of the cases in the splenic vein. The right gastric vein had it's confluence to portal vein in 30 % of the cases and to the splenic vein in 4 %. The inferior mesenteric vein was tributary of the splenic vein in 54% of the cases and in the superior mesenteric vein in 46%. The left gastro-omental vein had its confluence to the splenic vein in 50% of the cases and to the inferior polar vein in 34 %. The middle colic vein had its confluence to superior mesenteric vein in 42% of the cases, to inferior mesenteric vein in 12% and to splenic vein in 8%. The posterior gastric vein was found in 54% of the corpses, and in all cases it was a tributary of the splenic vein, in retropancreatic position, coming from the esophageal-gastric junction. These findings agree with previous papers describing a prevalence of 60% of posterior gastric vein in patients submitted to surgery in portal hypertension, and in all cases, this vein was tributary of the splenic vein. The identification of this vein may influence the treatment, because if left untied during cases of portal-azigos disconnection, they may predispose to postoperative bleeding, but in cases of splenorenal anastomosis may preserve its patency in cases of anastomosis occlusion, or can lead again to postoperative bleeding feeding the esophageal varices. To ligate or not this vein will depends on the surgeon 's experience and common sense. Regarding to previous papers and to this data presented here, the authors believe that the prevalence of this vein is between 50 and 60% in the population.

  5. Grasping the experience of the other from an interview: self-transposition in use.

    Science.gov (United States)

    Angel, Sanne

    2013-01-01

    This article describes a part of the interview process that is never usually reported. Listening to what people say is the key to increasing our knowledge of human existences. Procuring knowledge about human experience is much more challenging. Although good sources on how to prepare and conduct an interview exist, the process of the interviewer's perception of the interviewee's message and meaning is less examined. Beyond the role of eliciting the data, the researcher endeavours to reproduce the interviewee's narration and not the voice of the researcher. By illustrating the process during the interview, further transparency and thereby validity may be achieved. To exemplify this, the perception of the interviewer is explored, and here Heidegger's work on self-transposition has proved to be helpful. PMID:23972102

  6. Museographic transposition : The development of a museum exhibit on animal adaptations to darkness

    DEFF Research Database (Denmark)

    Mortensen, Marianne Foss

    2010-01-01

    Science museums define the objectives of their exhibitions in terms of visitor learning outcomes, yet exhibition engineering staff lack theoretical and empirical research findings on which to base the creation of these educational environments. Here, a first step towards providing such research is reported. Museographic transposition was used as an analytical framework to investigate the development of an existing museum exhibit on animal adaptations to darkness. The analysis yielded a descriptive model of exhibition engineering as a three-stage process in which simultaneous processes of epistemological development and museum-pedagogical development result in the curatorial brief which forms the basis of the subsequent museographic development of the physical exhibit. Examples are discussed which illustrate the use of the model in identifying exhibition inconsistencies, but also in generating new ideas for exhibition engineering. The potential for further developing the model is discussed.

  7. Palindromic Unit-Independent Transposition of IS1397 in Yersinia pestis

    Science.gov (United States)

    Wilde, Caroline; Bachellier, Sophie; Hofnung, Maurice; Carniel, Elisabeth; Clment, Jean-Marie

    2002-01-01

    Palindromic units (PUs) are intergenic repeated sequences scattered over the chromosomes of Escherichia coli and several other enterobacteria. In the latter, IS1397, an E. coli insertion sequence specific to PUs, transposes into PUs with sequences close to the E. coli consensus. Reasons for this insertion specificity can relate to either a direct recognition of the target (by its sequence or its structure) by the transposase or an interaction between a specific host protein and the PU target DNA sequence. In this study, we show that for Yersinia pestis, a species deprived of PUs, IS1397 can transpose onto its chromosome, with transpositional hot spots. Our results are in favor of a direct recognition of target DNA by IS1397 transposase. PMID:12169598

  8. Technique of Dorsal Transversely Oriented Transposition Flap for Web Reconstruction in Toe Syndactyly Surgery.

    Science.gov (United States)

    Saito, Susumu; Suzuki, Yoshihisa; Suzuki, Shigehiko

    2015-01-01

    In toe desyndactyly, a dorsal or plantar commissural flap, combined with skin grafts, will ensure an acceptable result. However, the parallel unsightly scars in the longitudinal direction on the dorsum of the toes will sometimes fail to satisfy the patient's and/or the parents' aesthetic expectations. To address this issue, we developed a technique using a transversely oriented transposition flap for web reconstruction, which can spare the dorsal interdigital skin maximally to shift the dorsal scars plantarly such that they become inconspicuous. The design of the flap is simple and uncomplicated surgically. Moreover, the donor site morbidity is minimal, owing to the good healing potential of the transverse scars. This technique could be an alternative in web reconstruction of toe desyndactyly, especially in cases with high cosmetic priority. PMID:25998477

  9. Grasping the experience of the other from an interview: : Self-transposition in use

    DEFF Research Database (Denmark)

    Angel, Sanne

    2013-01-01

    This article describes a part of the interview process that is never usually reported. Listening to what people say is the key to increasing our knowledge of human existences. Procuring knowledge about human experience is much more challenging. Although good sources on how to prepare and conduct an interview exist, the process of the interviewers perception of the interviewees message and meaning is less examined. Beyond the role of eliciting the data, the researcher endeavours to reproduce the interviewees narration and not the voice of the researcher. By illustrating the process during the interview, further transparency and thereby validity may be achieved. To exemplify this, the perception of the interviewer is explored, and here Heideggers work on self-transposition has proved to be helpful.

  10. [Development of environmentally benign transformations via 1,3-transposition of hydroxyl group].

    Science.gov (United States)

    Egi, Masahiro

    2011-01-01

    This review article describes our recent efforts to develop environmentally benign transformations of allyl and propargyl alcohols via the 1,3-transposition of their hydroxyl groups using combined catalyst systems. This methodology allows for successful transformation under mild conditions, which has never been achieved using each catalyst. Representative examples of this methodology include the following three reactions. First, the combination of oxo-vanadium compounds and lipases resulted in the dynamic kinetic resolution of racemic allyl alcohols to give optically active allyl esters in high yields. Second, Mo-Au-Ag combination catalysis dramatically accelerated the rearrangement of diverse propargyl alcohols into ?,?-unsaturated carbonyl compounds. Finally, the choice of suitable heteropoly acids for the rearrangement of propargyl alcohols led to the selective preparation of both (Z)- and (E)-enones. PMID:21963972

  11. Persistent pulmonary hypertension of the newborn with transposition of the great arteries: successful treatment with bosentan.

    Science.gov (United States)

    Goissen, C; Ghyselen, L; Tourneux, P; Krim, G; Storme, L; Bou, P; Maingourd, Y

    2008-04-01

    Persistent pulmonary hypertension of the newborn (PPHN) occurs in 1-4% of neonates with transposition of the great arteries with intact ventricular septum (TGA/IVS). This association is often lethal. To our knowledge, only eight survivors have been described in the literature, two of whom benefited from extracorporeal membrane oxygenation (ECMO). We report two cases of PPHN complicating a TGA/IVS that were refractory to multiple therapies and resolved 48 hours after initiation of bosentan therapy. Bosentan, an oral dual endothelin-1 receptor antagonist, is a new treatment for pulmonary arterial hypertension that was both effective and safe in these two cases of TGA/IVS with PPHN. To our knowledge, it is the first use of bosentan in newborns. PMID:17701214

  12. Impact of Mock-up Experimental Correlations and Uncertainties in the Transposition Process

    International Nuclear Information System (INIS)

    Experimental programs led in zero power reactors are mainly devoted to neutron lattice and core code validation. As a consequence, and in order to be relevant of neutron behavior in power reactors, the experiments must be representative for the neutron properties. Zero power reactors have the advantage of enabling the measurement of quantities that are inaccessible in power reactors. The study is made on a limited experimental database to analyze the transposition of C/E (calculation-to-experiment) results and associated uncertainties from different experimental programs (Pre-Racine, ZPPR or criticality experiment) to the CFV SFR Gen-IV concept currently being developed by CEA. Finally we present a rigorous method to combine technological and measurements uncertainties linked to the experimental techniques to generate covariance matrices between integral quantities. (authors)

  13. 21 CFR 870.4885 - External vein stripper.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false External vein stripper. 870.4885 Section 870.4885...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Surgical Devices 870.4885 External vein stripper. (a) Identification. An external vein stripper is an extravascular device used to remove a section...

  14. 21 CFR 880.6970 - Liquid crystal vein locator.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Liquid crystal vein locator. 880.6970 Section 880... Devices 880.6970 Liquid crystal vein locator. (a) Identification. A liquid crystal vein locator is a... skin by displaying the color changes of heat sensitive liquid crystals (cholesteric esters)....

  15. Repair of stenotic saphenous vein grafts in infrainguinal arterial reconstructions.

    OpenAIRE

    Alameddine, A K; Riester, W H

    1998-01-01

    We describe a technique of repairing autologous vein grafts affected by segmental stenosis. This technique can be of value both in reoperating on an old saphenous vein graft implanted for infrainguinal limb revascularization and in harvesting fresh saphenous vein in which an unexpected short-segment stenosis has been encountered.

  16. A poorly known case of watershed transposition between the So Francisco and upper Paran river basins

    Scientific Electronic Library Online (English)

    Orlando, Moreira Filho; Paulo Andreas, Buckup.

    2005-09-01

    Full Text Available Durante a construo do reservatrio hidroeltrico de Furnas na bacia do alto rio Paran no incio da dcada de 1960, o fluxo de guas do rio Piumhi foi desviado para as cabeceiras da bacia do rio So Francisco. O rio Piumhi era um tributrio da margem direita do rio Grande, o qual se une com rio Pa [...] ranaba para formar o rio Paran. A transposio permitiu que toda a fauna de peixes do rio Piumhi e banhados, lagos e tributrios associados se mesclasse com a fauna de peixes da bacia do rio So Francisco atravs do ribeiro Sujo, um tributrio da margem direita do So Francisco. A transposio da bacia pode ter ocasionado grande impacto na atual composio da fauna de peixes da bacia do alto rio So Francisco. Abstract in english During construction of the Furnas hydroelectric power dam in the upper rio Paran basin in the early 1960s, the rio Piumhi drainage outflow was diverted into the headwaters of the So Francisco river basin. The rio Piumhi was a right bank tributary of the rio Grande, which unites with the rio Parana [...] ba to form the rio Paran. The transposition allowed the entire fish fauna of the rio Piumhi and associated swamps, lakes, and tributaries to intermingle with the fish fauna of the So Francisco basin via the ribeiro Sujo, a right bank tributary of the So Francisco. The transposition of the watershed may have had a major impact on the current composition of the fish fauna of the upper rio So Francisco watershed.

  17. Roteiros de aprendizagem a partir da transposio didtica reflexiva / Learning Roadmaps from the reflective didactic transposition

    Scientific Electronic Library Online (English)

    Paula Andrea Grawieski, Civiero; Marilaine de Fraga, Sant' Ana.

    2013-08-01

    Full Text Available Este artigo busca socializar o produto da dissertao de mestrado profissional em Ensino de Matemtica. Apresentamos roteiros de aprendizagem como uma possibilidade educacional para que professores de matemtica do Ensino Mdio possam aplic-los de modo a desenvolver a matemtica a partir de dados r [...] eais. Os roteiros foram adaptados de trabalhos oriundos do Projeto de Iniciao Cientfica do IFC - Campus Rio do Sul. A pesquisa foi embasada na teoria da Transposio Didtica e na Educao Matemtica Crtica. Essa abordagem foi denominada de Transposio Didtica Reflexiva, com o intuito de unir as duas teorias num processo em que o saber a ser ensinado seja adaptado de forma a provocar reflexes, instituindo um cenrio para investigao que propicie a participao do aluno no processo, provoque discusses e tomada de deciso, de modo a instigar o sujeito a ser transformador de sua prpria realidade. De modo particular, o artigo apresenta, em linhas gerais, um dos roteiros detalhados na dissertao, aplicado em uma turma do IFC - Campus Rio do Sul. Abstract in english This article presents the results of Masters research in Mathematics Teaching that focused on learning roadmaps as an educational opportunity for high school mathematics teachers. The roadmaps, adapted from work carried out as part of the Scientific Initiation Project IFC - Rio do Sul Campus, can be [...] used by teachers to develop mathematics from real data. The research was based on the theory of Didactic Transposition and Critical Mathematics Education. The approach was denominated Reflective Didactic Transposition, aiming to unite the two theories in a process in which the knowledge to be taught is adapted to provoke reflections, establishing a setting for research that fosters the student's participation in the process and provokes discussions and decision making in order to encourage subjects to become engaged in transforming their own reality. In particular, the article provides an overview of the roadmaps detailed in the Masters thesis, applied in a class of IFC - Rio do Sul Campus

  18. Effects of flaxseed, sardines, pearl millet, and holy basil leaves on production traits of layers and fatty acid composition of egg yolks.

    Science.gov (United States)

    Kirubakaran, A; Narahari, D; Ezhil Valavan, T; Sathish Kumar, A

    2011-01-01

    The effects of flaxseed, sardines, pearl millet, and holy basil (Oscimum sanctum) leaf meal on Single Comb White Leghorn (Forsgate strain) layer hen production traits, fatty acid composition of egg yolks, and egg quality characteristics were studied. Layer hens were allocated to 1 of 6 dietary treatments from 27 to 32 wk of age: control (treatment 1), control + 1 g of basil leaf meal (BLM) (treatment 2), control + 2 g of BLM (treatment 3), designer egg layer mash (DELM; treatment 4), DELM + 1 g of BLM (treatment 5), DELM + 2 g of BLM (treatment 6). No significant differences were found in egg production between dietary treatments, indicating that neither the designer diet nor the BLM had an adverse effect on egg production. The high energy level in the designer diet, because of the flaxseed oil and sardines, significantly reduced feed intake compared with the control diet. The egg weight was significantly higher in birds fed the designer diet compared with the egg weight in the control diet. The flaxseed oil and sardine oil, which are rich in n-3 polyunsaturated fatty acids, contributed to significantly increased n-3 polyunsaturated fatty acid levels in the egg yolks, with a proportionate reduction in the level of palmitic acid. Other fatty acids showed only minor variations. Flaxseed oil increased the level of ?-linolenic acid, whereas fish oil increased the eicosapentaenoic acid and docosahexaenoic acid levels. The BLM at low levels of inclusion (1 and 2 g/kg) also contributed significantly to elevating the yolk n-3 polyunsaturated fatty acid levels, especially C18:3. Holy basil leaf meal is a good feed supplement for increasing the yolk ?-linolenic acid level by reducing the yolk saturated fatty acid levels proportionately. PMID:21177454

  19. Fisiologa poscosecha de albahaca (Occimum basilicum L.) con y sin acolchado / Postharvest physiology of basil (Occimum basilicum L.) with and without mulching

    Scientific Electronic Library Online (English)

    Vernica, Nez-Lpez; Ma. Teresa, Martnez-Damin; Ma. Teresa, Colinas-Len.

    2012-12-01

    Full Text Available Con la finalidad de estudiar el efecto de las bajas temperaturas sobre la calidad poscosecha de albahaca (Occimum basilicum L.), producida con y sin acolchado, en atmsfera modificada, se cuantific su comportamiento en almacenamiento a 0, 5, 7 y 20 C, durante 16 das, en un diseo experimental com [...] pletamente al azar, con tres repeticiones. La unidad experimental consisti en un manojo de hierbas de 30 g. Se evaluaron los slidos solubles totales, acidez titulable, potencial de hidrgeno, clorofilas, carotenoides, contenido de amonio, color, prdida de peso fresco, y adems se realiz una evaluacin hednica, en donde se tom en cuenta apariencia visual, turgencia, apariencia comercial, pudricin y amarillamiento. Hubo diferentes efectos de las temperaturas sobre la calidad poscosecha. La albahaca sufri daos por fro a 0 C. Sin embargo a 5 C se increment la vida poscosecha y se conservaron sus caractersticas fisicoqumicas. El uso del acolchado no influy en la calidad poscosecha. Abstract in english In order to study the effect of low temperatures on postharvest quality of basil (Occimum basilicum L.), grown with and without mulching, under modified atmosphere, its behavior was quantified in storage at 0, 5, 7 and 20 C, for 16 days using a completely randomized design with three replications. [...] The experiment unit consisted of a 30 g herbal bundle. Total soluble solids, titratable acidity, hydrogen potential, chlorophylls, carotenoids, ammonium content, color, fresh weight loss were evaluated. A hedonic evaluation was carried out, taking into account the following elements: visual appearance, turgidity, trade dress, decay and yellowing. Temperatures provoked different effects on postharvest quality. Basil suffered chilling injury at 0 C. However, postharvest life of basil increased and its physicochemical characteristics remained similar at 5 C. Postharvest quality was not affected by the use of mulching.

  20. Primary varicose veins: Frequency, clinical significance and surgical treatment

    Directory of Open Access Journals (Sweden)

    Vasi? Dragan M.

    2004-01-01

    Full Text Available INTRODUCTION According to the definition of the World Health Organization, varicose veins represent abnormally enlarged superficial veins having baggy or cylindrical shape. The most frequent cause of primary varicose veins is the insufficiency of long saphenous vein (LSV, but especially the basin of its connection with femoral vein and perforating veins. OBJECTIVE The objectives of these investigations were: the determination of insufficiency incidence of SSV in cases of LSV insufficiency; the establishment of association of insufficiency of perforating veins of the basin of LSV and SSV; the study of the results of surgical treatment of insufficiency and varicosity of both short and long saphenous veins. METHODS In this study, 100 patients (66 women and 34 men, average age 52.1 years, with clinical symptoms showing the insufficiency and varicosity of long saphenous vein with no change of deep vein system were examined. Ultrasonographic examinations were made using Color Doppler probes - 7.5 and 3.75 MHz (Toshiba Corevison SSA 350 A; the development of incompetence of long saphenous vein (LSV and short saphenous vein (SSV at the level of the junction as well as other incompetent valves were examined. The reflux was defined as a retrograde flow of the duration longer than 0.5 seconds. RESULTS The insufficiency of short saphenous vein was determined by ultrasonographic examination in 34%, while the insufficiency of perforating veins in 80% of patients. 40% of patients were operated (33.3% of females, and 52.9% of males. The most frequent indications for surgical treatment of superficial veins insufficiency were: strong varicosities, clear symptoms and signs, superficial thrombophlebitis and conditions after superficial thrombophlebitis. Surgical treatment was applied in 16% of patients due to recurrence in the basin of long saphenous vein, and in 6% of cases because of the recurrence in the basin of short saphenous vein. Data analysis failed to discover any statistically significant difference between the age of patients and varicosities in the basin of long saphenous vein as well as in the basin of short saphenous vein (51.989.97 years; 54.5031.82 years; t=0.36; p>0.05, or any significant difference of BMI value, with regard to the obesity of patients and varicosities in the basin of long saphenous vein as well as in the basin of short saphenous vein (28.024.61 kg/m2; 24.506.36 kg/m2; t=0.50; p>0.05. No statistically significant correlation was found between Color Duplex findings of insufficiency of both long saphenous vein and short saphenous vein (p=-0.21 ; p>0.05, nor any significant correlation of Color Duplex findings of perforating veins insufficiency in the basin of long saphenous vein and short saphenous vein (p=-0.115; p>0.05. CONCLUSION The incidence of insufficiency is significant: approximately every third patient has short saphenous vein insufficiency, while three third of patients have perforating veins insufficiency. Color Duplex limb's veins ultrasonography is highly reliable method for the examination and study of superficial veins diseases, which is very important for preoperative decision-making and selection of surgical technique as well as for postoperative follow-up.

  1. Basil conservation affected by cropping season, harvest time and storage period Armazenamento e conservao de manjerico aps diferentes pocas e horrios de colheita

    Directory of Open Access Journals (Sweden)

    Franceli da Silva

    2005-04-01

    Full Text Available Fresh basil (Ocimum basilicum L. is used in food, phytotherapic industry, and in traditional therapeutic, due to its essential oil content and composition. Nevertheless basil can not be kept for long periods after harvest and its quality can be reduced. This work aimed to assess the influence of the season and harvest time in the postharvest conservation of basil stored for different periods. Basil was harvested at 8 am and 4 pm both in August/1999 and January/2000. Cuttings were conditioned in PVC packages and stored for 3, 6, and 9 days. During storage, chlorophyll content, essential oil content and composition were determined as well as microbiological analyses were carried out. Harvest season and the days of storage influenced the final content of essential oil. There was a linear decrease in the content of essential oil, in the chlorophyll content and in the number of mold and yeast colonies during storage. There was no effect of cropping season or harvest hour on essential oil composition, but the eugenol and linalool content increased during storage. Coliforms were under 0.3 MPN g-1 and the number of Staphylococcus aureus was under 1.0x10 UFC g-1.O manjerico (Ocimum basilicum L. empregado tanto na indstria culinria quanto fitoterpica e na medicina tradicional, devido ao teor e composio de seu leo essencial. No entanto, o manjerico no pode ser conservado por longo perodo aps a colheita e sua qualidade pode ser prejudicada. O objetivo deste trabalho foi verificar a influncia da poca e do horrio de colheita sobre a conservao de manjerico armazenado por diferentes perodos. O manjerico foi colhido s 8h e s 16h em agosto/1999 e em janeiro/2000. Os ramos foram acondicionados em filmes de PVC e armazenados por 3, 6 e 9 dias. Durante o armazenamento, o teor de clorofila, e o teor e a composio do leo essencial foram determinados e foram conduzidas anlises microbiolgicas. A poca de colheita e os dias de armazenamento influenciaram o teor final de leo essencial. Houve decrscimo linear dos teores de leo essencial e de clorofila e do nmero de colnias de fungos e bactrias ao longo do armazenamento. No houve efeito da poca de colheita ou do horrio de colheita sobre a composio do leo essencial, mas os teores de eugenol e linalol aumentaram durante o armazenamento. O nmero de coliformes ficou abaixo de 0,3 NMP g-1 e o nmero de Staphylococcus aureus, abaixo de 1,0x10 UFC g-1.

  2. Cultivo de manjerico em hidroponia e em diferentes substratos sob ambiente protegido / Culture of basil in substrata and hydroponic systems under protected environment

    Scientific Electronic Library Online (English)

    Priscila C., Fernandes; Roselaine, Facanali; Joo Paulo F., Teixeira; Pedro R., Furlani; Marcia Ortiz M., Marques.

    2004-06-01

    Full Text Available Entre as ervas aromticas, o manjerico possui importncia econmica no Brasil, sendo seu consumo tanto in natura quanto para processamento industrial, na obteno de leo essencial. Porm, as informaes quanto qualidade aromtica dessas plantas em funo das tcnicas de cultivo so escassas. Ava [...] liou-se a produtividade de duas espcies de manjerico, de folha estreita (Ocimum minimum L.) e de folha larga (Ocimum basilicum L.) em ambiente protegido. Os sistemas de cultivo utilizados foram: 1) hidroponia (floating); 2) substrato preparado e 3) substrato comercial. As amostragens foram realizadas durante o perodo de florescimento das plantas. O experimento foi realizado em Campinas (SP), em casa de vegetao com controle de umidade e iluminao naturais, utilizando-se o delineamento inteiramente casualizado, com trs repeties. Foram avaliados tambm o rendimento e composio qumica dos leos essenciais das plantas. O sistema hidropnico apresentou a maior produtividade de massa verde, aproximadamente 44% superior aos outros dois tipos de cultivo, para ambas as espcies estudadas. No houve diferena significativa entre as formas de cultivo quanto ao rendimento e composio qumica dos leos essenciais dentro da mesma espcie. Quanto produo de leo essencial, as plantas de manjerico de folha estreita apresentaram rendimento aproximadamente 10% mais elevado em relao s de folha larga, alm de diferenas significativas na composio dos leos essenciais entre as espcies. Abstract in english Among the aromatical herbs, basil is of great economic importance in Brazil. This species is used as fresh herb and also for essential oil extraction. To evaluate the productivity of basil in protected environment, two species, Ocimum minimum L. (narrow leaf basil) and Ocimum basilicum L. (wide leaf [...] basil) were cultivated under greenhouse conditions, using a hydroponic system and two types of substrata. The experiment was carried out in a completely randomized design with three repetitions. Samples were obtained during the flowering period. The yield and the chemical composition of the essential oils were evaluated. The highest yield of green mass from the two species, was obtained in the hydroponic system, with higher productivity (aprox. 44%) than the plants cultivated in prepared commercial substratum. Plants of Ocimum minimum L. produced more essential oil (aprox. 10%) than plants of Ocimum basilicum L. Significant differences were found in the chemical composition of essential oil between species. No differences were observed in the chemical composition of essential oil, comparing the three cultivation systems.

  3. Phase equilibrium in systems with ionic liquids: An example for the downstream process of the Biphasic Acid Scavenging utilizing Ionic Liquids (BASIL) process. Part I: Experimental data

    International Nuclear Information System (INIS)

    Highlights: ? Phase equilibrium for a downstream process in sustainable chemical technology. ? Biphasic Acid Scavenging Utilizing Ionic Liquids (BASIL) Process. ? SLE, LLE, and SLLE of (NaCl + water + 1-propanol + 1-MIM) and its ternary subsystems. ? Experimental phase equilibrium data at temperatures between 298 K and 333 K. - Abstract: Experimental results are presented for the (liquid + liquid), (solid + liquid) and (solid + liquid + liquid) equilibria occurring in the downstream process of a typical example for the Biphasic Acid Scavenging Utilizing Ionic Liquids (BASIL)-processes. In a BASIL process an organic base is used to catalyze a chemical reaction and, at the same time, to scavenge an acid that is an undesired side product of that reaction. The particular example of a BASIL process treated here is the reaction of 1-butanol and acetylchloride to butylacetate and hydrochloric acid, where the acid is scavenged by the organic base 1-methyl imidazole (1-MIM) resulting in the ionic liquid 1-methyl imidazolium chloride. The reaction results in a two-phase system as butylacetate and the ionic liquid reveal a large liquidliquid miscibility gap. The organic base has to be recovered. This is commonly achieved by treating the ionic liquidrich liquid phase with an aqueous solution of sodium hydroxide (i.e., converting the ionic liquid to the organic base) and extracting the organic base by an appropriate organic solvent (e.g., 1-propanol). The work presented here deals in experimental work with the (liquid + liquid), (solid + liquid) and (solid + liquid + liquid) phase equilibria that are encountered in such extraction processes. Experimental results are reported for temperatures between about 298 K and 333 K: for the solubility of NaCl in several solvents (1-propanol, 1-MIM), (water + 1-MIM), (1-propanol + 1-MIM), (water + 1-propanol), and (water + 1-propanol + 1-MIM) and for the (liquid + liquid) equilibrium as well as for the (solid + liquid + liquid) equilibrium of the ternary system (NaCl + water + 1-propanol) and of the quaternary system (NaCl + water + 1-propanol + 1-MIM).

  4. Ligation of superior mesenteric vein and portal to splenic vein anastomosis after superior mesenteric-portal vein confluence resection during pancreaticoduodenectomy Case report

    Directory of Open Access Journals (Sweden)

    Jianlin Tang

    2014-12-01

    Conclusion: The lessons we learned are (1 Before SMPV confluence resection, internal jugular vein graft should be ready for reconstruction. (2 Synthetic graft is an alternative for internal jugular vein graft. (3 Direct portal vein to SMV anastomosis can be achieved by mobilizing liver. (4 It is possible that venous collaterals secondary to SMV tumor obstruction may have allowed this patient's post-operative survival.

  5. Deep dorsal vein arterialisation in vascular impotence.

    Science.gov (United States)

    Wespes, E; Corbusier, A; Delcour, C; Vandenbosch, G; Struyven, J; Schulman, C C

    1989-11-01

    A series of 12 patients with vasculogenic impotence (4 arterial lesions; 8 arterial and venous lesions) underwent deep dorsal vein arterialisation after pre-operative assessment by a multidisciplinary approach. Cumulative graft patency was 58% (7 of 12 patients) up to 21 months but only 4 patients developed almost normal erections. Digital angiography, with and without the intracavernous injection of papaverine, was performed during follow-up to determine the vascular physiological status. At flaccidity, the corpora cavernosa were never opacified in the absence of a venocorporeal shunt. The penile glans was always visualised. Opacification of the deep dorsal vein and the circumflex system decreased with penile rigidity, resulting from their compression between Buck's fascia and the tunica albuginea. Intracavernous pressure recorded before and after the surgical procedure showed a marked increase when a caverno-venous shunt was performed. Hypervascularisation of the glans occurred in 2 cases. The relevance of this new surgical technique and its functional mechanism are discussed. PMID:2611627

  6. Lower extremity dep vein thrombosis in children

    International Nuclear Information System (INIS)

    Of 113 leg venograms performed in patients of all ages between 1969 and 1982, 68 were in children 16 years old or less. The patients were all studied on a tilt table (method of Rabinov and Paulin) in a head-up, 40-500 incline without tourniquets, supporting their weight on the unaffected leg. Among the 68 venograms, 12 (18%) were positive for deep vein thrombosis. The clinical settings for thrombosis in children were post-catheterization (two patients), post surgery (two), tumor/tumor therapy (three), drug abuse (one), and idiopathic (three). There were no long-term clinical sequelae in five patients. Pulmonary infarction occurred in three, and three patients required either long-term anticoagulation or IVC clipping. Clinical diagnosis is no more accurate for the diagnosis of deep vein thrombosis in children than it is in adults. Venography is the best method for making an accurate diagnosis and directing subsequent therapy.(orig.)

  7. Atypical penile Mondor's disease - involvement of the circumflex vein.

    Science.gov (United States)

    Arora, Rahul; Sonthalia, Sidharth; Gera, Tanu; Sarkar, Rashmi

    2015-04-01

    Mondor's disease is a rare condition characterised by superficial thrombophlebitis of subcutaneous veins, most commonly over the anterior chest wall. Penile Mondor's disease is rarer, arising out of thrombophlebitis of the penile veins. It typically involves the dorsal vein of the penis and presents with a cord-like indurated lesion with a beaded feel, palpable along the length of the involved vein. Though penile Mondor's disease involving the dorsal vein of the penis has been reported by many authors, we report a peculiar case of penile Mondor's disease in a 26-year-old sexually active man with thrombophlebitis of the circumflex vein of the penis with sparing of the dorsal vein. Diagnosis was confirmed on Doppler ultrasonography of the penile venous system. Despite exhaustive history taking, no cause could be elicited. The lesion completely subsided within three days with daily local hot fomentation. We propose the term 'atypical penile Mondor's disease' for such a case. PMID:24867818

  8. Absent right superior caval vein in situs solitus

    DEFF Research Database (Denmark)

    Lytzen, Rebekka; Sundberg, Karin; Vejlstrup, Niels

    2015-01-01

    Introduction In up to 0.07% of the general population, the right anterior cardinal vein obliterates and the left remains open, creating an absent right superior caval vein and a persistent left superior caval vein. Absent right superior caval vein is associated with additional congenital heart...... disease in about half the patients. We wished to study the consequences of absent right superior caval vein as an incidental finding on prenatal ultrasonic malformation screening. Material and methods This is a retrospective case series study of all foetuses diagnosed with absent right superior caval vein...... at the national referral hospital, Rigshospitalet, Denmark, from 2009 to 2012. RESULTS: In total, five cases of absent right superior caval vein were reviewed. No significant associated cardiac, extra-cardiac, or genetic anomalies were found. Postnatal echocardiographies confirmed the diagnosis and...

  9. The veins of the nucleus dentatus: anatomical and radiological findings.

    Science.gov (United States)

    Di Ieva, Antonio; Tschabitscher, Manfred; Galzio, Renato Juan; Grabner, Gnther; Kronnerwetter, Claudia; Widhalm, Georg; Matula, Christian; Trattnig, Siegfried

    2011-01-01

    The veins of the dentate nucleus are composed of several channels draining the external surface and one single vein draining the internal surface. We analyzed specimens of the human cerebellum and described the central vein of the nucleus dentatus as the main venous outflow of the nucleus. The central vein of the nucleus dentatus is formed by a network of smaller vessels draining the sinuosities of the gray matter; it emerges from the hilum of the nucleus and runs along the superior cerebellar peduncle, opening in the anterior vermian vein. We looked for this structure and for the surrounding veins on ultra-high-field (7 Tesla) MR, using susceptibility-weighted imaging. An anatomical and radiological description of the veins of the dentate nucleus is provided, with some remarks on the future clinical applications that these findings could provide. PMID:20659570

  10. Femoral Vein Repair of Arterial Infections

    DEFF Research Database (Denmark)

    Budtz-Lilly, Jacob; Eldrup, Nikolaj; Vammen, Sten; Laustsen, Jesper

    2014-01-01

    INTRODUCTION: Success with the neoaortoiliac system (NAIS) bypass has previously been reported. Drawbacks to this procedure include prolonged operative times and significant morbidity. The aim of this study was to evaluate whether a 2-team approach in addition to a consistent anastomosis technique reduces the operative time of the NAIS procedure. METHODS: A single-center retrospective review was performed for operations using femoral vein in arterial reconstruction from 2003 to 2012. RESULTS: A ...

  11. Portal vein thrombosis in liver cirrhosis

    OpenAIRE

    Kinjo, Nao; Kawanaka, Hirofumi; Akahoshi, Tomohiko; Matsumoto, Yoshihiro; Kamori, Masahiro; Nagao, Yoshihiro; Hashimoto, Naotaka; UEHARA, HIDEO; Tomikawa, Morimasa; SHIRABE, KEN; MAEHARA, YOSHIHIKO

    2014-01-01

    Portal vein thrombosis (PVT) is considered to be a frequent complication of liver cirrhosis. However, unlike PVT in patients without cirrhosis, very few data are available on the natural history and management of PVT in cirrhosis, despite its association with potentially life-threatening conditions, such as gastroesophageal bleeding and acute intestinal ischemia. Moreover, no consensus regarding PVT in cirrhosis exists. Suggested causes of PVT in cirrhosis include reduced portal blood flow ve...

  12. Renal angiomyolipoma with renal vein invasion

    OpenAIRE

    Francesca Di Cristofano; Federico Petrucci; Guglielmo Zeccolini; Genesio Leo; Calogero Cicero; Dario Del Biondo; Antonio Celia

    2013-01-01

    Renal angiomyolipoma is a uncommon benign tumor, considered an hamartoma. The lesion, usually benign, can be single or multiple and well-circumscribed. In letterature only few cases of infiltrating angiomyolipomas have been described. The aim of the paper is to describe a paradigmatic case of a giant kidney angiomyolipoma, not associ- ated with tuberous sclerosis, invading the pelvis and the renal vein. The lesion have been discovered incidentally during abdominal ultrasound for other patholo...

  13. Finger Vein Recognition System Using Image Processing

    OpenAIRE

    Rashmi R. Tallam; Supriya S. Temgire; Rinku M. Zirange

    2014-01-01

    Abstract- With increase in globalization and standard of living, there has been a steady increase in the use and development of consumer electronics. This calls for the need of convenient, simple, high security authentication systems to protect personal information stored in mobile devices. With increasing emphasis on security and high complexity of existing biometric systems in time or space or both, automated personal identification using finger-vein biometric is becoming a very active topi...

  14. Massive hydrothorax following subclavian vein catheterization

    OpenAIRE

    Omar Hesham R; fathy Ahmad; Elghonemy Mohamed; Rashad Rania; Helal Engy; Mangar Devanand; Camporesi Enrico

    2010-01-01

    Abstract Since the introduction of central venous catheterization for monitoring of the venous pressure, fluid infusion and hyperalimentation, the literature has been full of serious life-threatening complications. Of these complications is the false positioning of the central venous catheter and subsequent development of pleural effusion. In this report we are describing a case of iatrogenic massive pleural effusion following subclavian vein catheterization necessitating intercostal tube dra...

  15. Endoscopic vein harvesting: technique, outcomes, concerns & controversies

    OpenAIRE

    Raja, Shahzad G; Sarang, Zubair

    2013-01-01

    The choice of the graft conduit for coronary artery bypass grafting (CABG) has significant implications both in the short- and long-term. The patency of a coronary conduit is closely associated with an uneventful postoperative course, better long-term patient survival and superior freedom from re-intervention. The internal mammary artery is regarded as the primary conduit for CABG patients, given its association with long-term patency and survival. However, long saphenous vein (LSV) continues...

  16. Impaired myocardial blood flow and coronary flow reserve of the anatomical right systemic ventricle in patients with congenitally corrected transposition of the great arteries

    OpenAIRE

    Hauser, M.; Bengel, F. M.; Hager, A; Kuehn, A; Nekolla, S. G.; Kaemmerer, H; Schwaiger, M.; Hess, J.

    2003-01-01

    Objectives: To investigate myocardial blood flow of the morphological right systemic ventricle in unoperated patients with congenitally corrected transposition of the great arteries (CCTGA) by positron emission tomography (PET).

  17. Laser photocoagulation for retinal vein occlusion

    Directory of Open Access Journals (Sweden)

    K. A. Mirzabekova

    2015-03-01

    Full Text Available Retinal vein occlusion (RVO is one of the leading causes of permanent vision loss. In adults, central retinal vein occlusion (CRVO occurs in 1.8% while branch retinal vein occlusion (BRVO occurs in 0.2%. Treatment strategy and disease prognosis are determined by RVO type (ischemic/non-ischemic. Despite numerous studies and many current CRVO and BRVO treatment approaches, the management of these patients is still being debated. Intravitreal injections of steroids (triamcinolone acetate, dexamethasone and vascular endothelial growth factor (VEGF inhibitors (bevacizumab, ranibizumab were shown to be fairly effective. However, it is unclear whether anti-VEGF agents are reasonable in ischemic RVOs. Laser photocoagulation remains the only effective treatment of optic nerve head and/or retinal neovascularization. Laser photocoagulation is also indicated for the treatment of macular edema. Both threshold and sub-threshold photocoagulation may be performed. Photocoagulation performed with argon (514 nm, krypton (647 nm, or diode (810 nm laser for macular edema provides similar results (no significant differences. The treatment may be complex and include medication therapy and/or surgery. Medication therapy includes anti-aggregant agents and antioxidants, i.e., emoxypine which may be used in acute RVO as well as in post-thrombotic retinopathy.

  18. What actually happens to EU directives in the member states?: A cross-country cross-sector view on national transposition instruments

    OpenAIRE

    Treutlein, Daniela

    2007-01-01

    This study empirically investigates the transposition patterns of EU directives in all 15 member states and in six major sectors of the economy with a view on analysing the political-economic reasons behind sector and national differences in the legal transposition instruments used. In particular, we model the influence of both national sector importance and governmental constellations on the ratio of primary to totally transposed EU directives. We find that government strength and net EU rec...

  19. Transposon Tn7 Directs Transposition into the Genome of Filamentous Bacteriophage M13 Using the Element-Encoded TnsE Protein?

    OpenAIRE

    Finn, Jessica A.; Parks, Adam R.; Peters, Joseph E

    2007-01-01

    The bacterial transposon Tn7 has a pathway of transposition that preferentially targets conjugal plasmids. We propose that this same transposition pathway recognizes a structure or complex found during filamentous bacteriophage replication, likely by targeting negative-strand synthesis. The ability to insert into both plasmid and bacteriophage DNAs that are capable of cell-to-cell transfer would help explain the wide distribution of Tn7 relatives.

  20. Neonatal Arterial Switch Operation for Transposition of the Great Arteries in a Patient with Mirror Image Dextrocardia and Situs Inversus Totalis

    OpenAIRE

    McMahon, Colin J.; Christopher S. Snyder; Rivenes, Shannon M.; Sang, Charlie J.; Charles D. Fraser

    2000-01-01

    The neonatal arterial switch operation has become the standard therapy for D-transposition of the great arteries in the absence of left ventricular outflow tract obstruction. We describe our experience of successful arterial switch operation after balloon atrial septostomy in a 5-day-old infant girl who had atrial and visceral situs inversus totalis, mirror image dextrocardia, and D-transposition of the great arteries. To our knowledge, ours is the first report of this operation in a patient ...

  1. Quantitative modeling of quartz vein sealing

    Science.gov (United States)

    Wendler, Frank; Okamoto, Atsushi; Schwarz, Jens-Oliver; Enzmann, Frieder; Blum, Philipp

    2014-05-01

    Mineral precipitation significantly effects many aspects of fluid-rock interaction across all length scales, as the dynamical change of permeability, of mechanical interaction and redistribution of dissolved material. The hydrothermal growth of quartz establishes one of the most important mineralization processes in fractures. Tectonically caused fracturing, deformation and fluid transport leaves clear detectable traces in the microstructure of the mineralized veins. As these patterns give hints on the deformation history and the fluid pathways through former fracture networks, accurate spatio-temporal modeling of vein mineralization is of special interest, and the objective of this study. Due to the intricate polycrystalline geometries involved, the underlying physical processes like diffusion, advection and crystal growth have to be captured at the grain scale. To this end, we adapt a thermodynamically consistent phase-field model (PFM), which combines a kinetic growth law and mass transport equations with irreversible thermodynamics of interfaces and bulk phases. Each grain in the simulation domain is captured by a phase field with individual orientation given by three Euler angles. The model evolves in discrete time steps using a finite difference algorithm on a regular grid, optimized for large grain assemblies. The underlying processes are highly nonlinear, and for geological samples, boundary conditions as well as many of the physical parameters are not precisely known. One motivation in this study is to validate the adequately parameterized model vs. hydrothermal experiments under defined (p,T,c) conditions. Different from former approaches in vein growth simulation, the PFM is configured using thermodynamic data from established geochemical models. Previously conducted batch flow experiments of hydrothermal quartz growth were analyzed with electron backscatter diffraction (EBSD) and used to calibrate the unknown kinetic anisotropy parameters. In the simulations, we study the sealing of syntaxial veins of 300 microns aperture by epitaxial overgrowth of preexisting grains from the rock surface. Results from 3D simulations conducted in the limit of low Damkhler numbers explain the observed transition regime in competitive crystal growth for blocky-elongate veins. The initial formation of quartz crystal bridges, especially pronounced in the regime of low supersaturation, is observed. The morphological evolution of micro-ensembles of grain neighbourhoods from the rock sample compares well to that of the simulations. To juxtapose larger polycrystal domains, the variation of grain number, texture and porosity as function of scaled distance from the initial wall is calculated. Velocity profiles from solutions of the isothermal incompressible Navier-Stokes equation are used to record permeability evolution and to evaluate deviations from the cubic law. Both, the geometry of the microstructure and the permeability of the flow pathway, are used as upscaling parameters for larger scale (fracture scale) simulations.

  2. ESR-based Identification of Radiation-Induced Free Radicals in Gamma-Irradiated Basil and Clove Using Different Sample Pre-Treatments

    International Nuclear Information System (INIS)

    An improved detection of radiation-induced paramagnetic faults was developed to identify the irradiation status of basil and clove. The effectiveness of different sample pretreatments, including freeze-drying (FD), oven-drying (OD), alcoholic-extraction (AE), and water-washing and alcoholic-extraction (WAE), were examined. All non-irradiated samples showed a single central signal (g0 = 2.006), whereas radicals representing two additional side peaks (g1 = 2.023 and g2 = 1.986) with a mutual distance of 6 mT were detected in the irradiated samples. AE and WAE produced the best results for irradiated clove in terms of intensities of radiation-specific ESR signals and their ratios to the central signal. However, FD provided the highest intensities of radiation-specific ESR signals for basil, whereas their ratios to the major signal were better in the cases of AE and WAE. Signal noise, particularly due to Mn2+ signals, was observed, whereas it decreased in AE and WAE pretreatments. Based on our results, AE and WAE can improve the detection conditions for radiation-specific ESR signals in irradiated samples. (author)

  3. Corrected transposition of the great arteries with several associated anomalies in a 68-year-old patient

    Scientific Electronic Library Online (English)

    Jos Luiz Balthazar, Jacob.

    2001-10-01

    Full Text Available Few patients with corrected transposition of the great arteries survive past 50 years of age because of the association with congenital defects, development of total atrioventricular block, and right ventricular dysfunction. We report the case of a male patient with dextrocardia in situs solitus and [...] corrected transposition of the great arteries associated with a wide atrial septal defect and severe pulmonary valvar and subvalvar stenoses. The patient also developed a large aneurysm on the pulmonary artery, total atrioventricular block diagnosed 8 years earlier, symptoms of dysfunction of the systemic ventricle in the previous 2 years, insufficiency of the left atrioventricular valve, and aortic regurgitation. Despite all these associated anomalies, the patient developed class III cardiac decompensation only at the age of 68 years, which makes this case a rarity. The patient was clinically treated, and was discharged from the hospital in good condition.

  4. Inferior Alveolar Nerve Lateralization and Transposition for Dental Implant Placement. Part II: a Systematic Review of Neurosensory Complications

    Directory of Open Access Journals (Sweden)

    Boris Abayev

    2015-03-01

    Full Text Available Objectives: This article, the second in a two-part series, continues the discussion of inferior alveolar nerve lateralization/transposition for dental implant placement. The aim of this article is to review the scientific literature and clinical reports in order to analyse the neurosensory complications, risks and disadvantages of lateralization/transposition of the inferior alveolar nerve followed by implant placement in an edentulous atrophic posterior mandible. Material and Methods: A comprehensive review of the current literature was conducted according to the PRISMA guidelines by accessing the NCBI PubMed and PMC databases, as well as academic sites and books. The articles were searched from January 1997 to July 2014. Articles in English language, which included adult patients between 18 - 80 years of age who had minimal residual bone above the mandibular canal and had undergone inferior alveolar nerve (IAN repositioning, with minimum 6 months of follow-up, were included. Results: A total of 21 studies were included in this review. Ten were related to IAN transposition, 7 to IAN lateralization and 4 to both transposition and lateralization. The IAN neurosensory disturbance function was present in most patients (99.47% [376/378] for 1 to 6 months. In total, 0.53% (2/378 of procedures the disturbances were permanent. Conclusions: Inferior alveolar nerve repositioning is related to initial transient change in sensation in the majority of cases. The most popular causes of nerve damage are spatula-caused traction in the mucoperiosteal flap, pressure due to severe inflammation or retention of fluid around the nerve and subsequent development of transient ischemia, and mandibular body fracture.

  5. Isolation of the right subclavian artery in a patient with d-transposition of the great arteries

    Directory of Open Access Journals (Sweden)

    Alisa Arunamata

    2015-01-01

    Full Text Available Isolation of the right subclavian artery (RSCA is rare, and this finding in association with d-transposition of the great arteries (d-TGA is extremely unusual. We present a case of an isolated RSCA in a newborn with d-TGA in whom the clinical presentation was diagnostic. We discuss the imaging modalities used to confirm the diagnosis, the embryological basis of the finding, and the surgical repair.

  6. A 5-methylcytosine DNA glycosylase/lyase demethylates the retrotransposon Tos17 and promotes its transposition in rice

    OpenAIRE

    La, Honggui; Ding, Bo; Mishra, Gyan P.; Zhou, Bo; YANG, HONGMEI; Bellizzi, Maria del Rosario; Chen, Songbiao; Meyers, Blake C.; Peng, Zhaohua; Zhu, Jian-Kang; Wang, Guo-Liang

    2011-01-01

    DNA 5-methylcytosine (5-meC) is an important epigenetic mark for transcriptional gene silencing in many eukaryotes. In Arabidopsis, 5-meC DNA glycosylase/lyases actively remove 5-meC to counteract transcriptional gene silencing in a locus-specific manner, and have been suggested to maintain the expression of transposons. However, it is unclear whether plant DNA demethylases can promote the transposition of transposons. Here we report the functional characterization of the DNA glycosylase/lyas...

  7. H-NS mediates the dissociation of a refractory proteinDNA complex during Tn10/IS10 transposition

    OpenAIRE

    Liu, Danxu; Haniford, David B.; Chalmers, Ronald

    2011-01-01

    Tn10/IS10 transposition takes place in the context of a proteinDNA complex called a transpososome. During the reaction, the transpososome undergoes several conformational changes. The host proteins IHF and H-NS, which also are global regulators of gene expression, play important roles in directing these architectural changes. IHF binds tightly to only one of two transposon ends within the transpososome, folding this end into a DNA loop structure. Unfolding this DNA loop is necessary for exci...

  8. Transposition of a reconstructed Harbinger element in human cells and functional homology with two transposon-derived cellular genes

    OpenAIRE

    Sinzelle, Ludivine; Kapitonov, Vladimir V.; Grzela, Dawid P.; Jursch, Tobias; Jurka, Jerzy; Izsvk, Zsuzsanna; Ivics, Zoltn

    2008-01-01

    Ancient, inactive copies of transposable elements of the PIF/Harbinger superfamily have been described in vertebrates. We reconstructed components of the Harbinger3_DR transposon in zebrafish, including a transposase and a second, transposon-encoded protein that has a Myb-like trihelix domain. The reconstructed Harbinger transposon shows efficient cut-and-paste transposition in human cells and preferentially inserts into a 15-bp consensus target sequence. The Myb-like protein is required for ...

  9. Change of Gene Structure and Function by Non-Homologous End-Joining, Homologous Recombination, and Transposition of DNA

    OpenAIRE

    Goettel, Wolfgang; Messing, Joachim

    2009-01-01

    An important objective in genome research is to relate genome structure to gene function. Sequence comparisons among orthologous and paralogous genes and their allelic variants can reveal sequences of functional significance. Here, we describe a 379-kb region on chromosome 1 of maize that enables us to reconstruct chromosome breakage, transposition, non-homologous end-joining, and homologous recombination events. Such a high-density composition of various mechanisms in a small chromosomal int...

  10. Automated detection of periventricular veins on 7 T brain MRI

    Science.gov (United States)

    Kuijf, Hugo J.; Bouvy, Willem H.; Zwanenburg, Jaco J. M.; Viergever, Max A.; Biessels, Geert Jan; Vincken, Koen L.

    2015-03-01

    Cerebral small vessel disease is common in elderly persons and a leading cause of cognitive decline, dementia, and acute stroke. With the introduction of ultra-high field strength 7.0T MRI, it is possible to visualize small vessels in the brain. In this work, a proof-of-principle study is conducted to assess the feasibility of automatically detecting periventricular veins. Periventricular veins are organized in a fan-pattern and drain venous blood from the brain towards the caudate vein of Schlesinger, which is situated along the lateral ventricles. Just outside this vein, a region-of- interest (ROI) through which all periventricular veins must cross is defined. Within this ROI, a combination of the vesselness filter, tubular tracking, and hysteresis thresholding is applied to locate periventricular veins. All detected locations were evaluated by an expert human observer. The results showed a positive predictive value of 88% and a sensitivity of 95% for detecting periventricular veins. The proposed method shows good results in detecting periventricular veins in the brain on 7.0T MR images. Compared to previous works, that only use a 1D or 2D ROI and limited image processing, our work presents a more comprehensive definition of the ROI, advanced image processing techniques to detect periventricular veins, and a quantitative analysis of the performance. The results of this proof-of-principle study are promising and will be used to assess periventricular veins on 7.0T brain MRI.

  11. Development of HIFU Therapy System for Lower Extremity Varicose Veins

    International Nuclear Information System (INIS)

    High-intensity focused ultrasound (HIFU) treatment utilizing microbubbles was investigated in the present study. It is known that microbubbles have the potential to enhance the heating effects of an ultrasound field. In this study, the heat accompanying microbubble oscillation was used to occlude varicose veins. Alteration of veins was observed after ultrasound irradiation. Veins were resected by stripping. In this study, two vein conditions were adopted during HIFU irradiation; non-compressed and compressed. Compressing the vein was expected to improve occlusion by rubbing the altered intima under compressed conditions. The frequency of the ultrasound was 1.7 MHz, the intensity at the focus was 2800 W/cm2, and the irradiation time was 20 s. In this study, the contrast agent Levovist registered was chosen as a microbubble source, and the void fraction (ratio of total gas volume to liquid) in the vein was fixed at 10-5. Under non-compressed conditions, changes were observed only at the adventitia of the vein anterior wall. In contrast, under compressed conditions, changes were observed from the intima to the adventitia of both the anterior and posterior walls, and they were partly stuck together. In addition, more experiments with hematoxylin-eosin staining suggested that the changes in the vein were more substantial under the latter conditions. From these results, it was confirmed that the vein was occluded more easily with vein compression.

  12. Development of HIFU Therapy System for Lower Extremity Varicose Veins

    Science.gov (United States)

    Ota, Ryuhei; Suzuki, Jun; Yoshinaka, Kiyoshi; Deguchi, Juno; Takagi, Shu; Miyata, Tetsuro; Matsumoto, Yoichiro

    2009-04-01

    High-intensity focused ultrasound (HIFU) treatment utilizing microbubbles was investigated in the present study. It is known that microbubbles have the potential to enhance the heating effects of an ultrasound field. In this study, the heat accompanying microbubble oscillation was used to occlude varicose veins. Alteration of veins was observed after ultrasound irradiation. Veins were resected by stripping. In this study, two vein conditions were adopted during HIFU irradiation; non-compressed and compressed. Compressing the vein was expected to improve occlusion by rubbing the altered intima under compressed conditions. The frequency of the ultrasound was 1.7 MHz, the intensity at the focus was 2800 W/cm2, and the irradiation time was 20 s. In this study, the contrast agent Levovist was chosen as a microbubble source, and the void fraction (ratio of total gas volume to liquid) in the vein was fixed at 10-5. Under non-compressed conditions, changes were observed only at the adventitia of the vein anterior wall. In contrast, under compressed conditions, changes were observed from the intima to the adventitia of both the anterior and posterior walls, and they were partly stuck together. In addition, more experiments with hematoxylin-eosin staining suggested that the changes in the vein were more substantial under the latter conditions. From these results, it was confirmed that the vein was occluded more easily with vein compression.

  13. Computed tomographic evaluation of the portal vein in the hepatomas

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kee Hyung; Lee, Seung Chul; Bae, Man Gil; Seo, Heung Suk; Kim, Soon Yong; Lee, Min Ho; Kee, Choon Suhk; Park, Kyung Nam [Hanyang University College of Medicine, Seoul (Korea, Republic of)

    1986-10-15

    Computed tomography and pornographic findings of 63 patients with hepatoma, undergone hepatic angiography and superior mesenteric pornography for evaluation of tumor and thrombosis of portal vein and determination of indication of transcatheter arterial embolization for palliative treatment of hepatoma from April, 85 to June, 86 in Hanyang university hospital, were reviewed. The results were as follows: 1. In 36 cases, portal vein thrombosis was detected during photography. Nineteen of 37 cases which revealed localized hepatoma in the right lobe of the liver showed portal vein thrombosis; 9 of 11 cases of the left lobe; 8 of 14 cases which were involved in entire liver revealed thrombosis. One case localized in the caudate lobe showed no evidence of invasion to portal vein. 2. Twenty-four of 34 cases with diffuse infiltrative hepatoma revealed portal vein thrombosis and the incidence of portal vein thrombosis in this type were higher than in the cases of the nodular type. 3. The portal vein thrombosis appeared as filling defects of low density in the lumen of the portal veins in CT and they did not reveal contrast enhancement. 4. CT revealed well the evidence of obstructions in the cases of portal vein thrombosis and the findings were well-corresponded to the findings of the superior mesenteric photography. 5. Five of the cases of the portal vein thrombosis were missed in the CT and the causes were considered as due to partial volume effect of enhanced portal vein with partial occlusion or arterioportal shunts. 6. Six of 13 cases with occlusion of main portal vein showed cavernous transformation and they were noted as multiple small enhanced vascularities around the porta hepatis in the CT. According to the results, we conclude that CT is a useful modality to detect the changes of the portal veins in the patients of the hepatoma.

  14. Caracterizao morfolgica e agronmica de acessos de manjerico e alfavaca / Morphologic and agronomic characterization of basil accessions

    Scientific Electronic Library Online (English)

    Arie F., Blank; Jos L.S. de, Carvalho Filho; Antnio L. dos, Santos Neto; Pricles B., Alves; Maria de Ftima, Arrigoni-Blank; Renata, Silva-Mann; Marcelo da C., Mendona.

    2004-03-01

    Full Text Available O manjerico (Ocimum basilicum L.) pode ser considerado cultura anual ou perene, conforme o local de cultivo. Existem diversas finalidades para seu uso na culinria, como planta ornamental, medicinal e aromtica, sendo o seu oleo essencial valorizado no mercado internacional pelo teor de linalol. Ca [...] racterizou-se morfolgica e agronmicamente, acessos de Ocimum sp. visando a seleo de gentipos com alto rendimento de leo essencial rico em linalol. O delineamento experimental foi de blocos casualizados, com duas repeties, avaliando 55 gentipos do Banco de Germoplasma de Ocimum da UFS. Avaliou-se a altura de plantas, peso da matria seca da parte area, teor e rendimento de leo essencial. Observou-se grande diversidade entre os gentipos para todas as variveis morfolgicas e agronmicas avaliadas. Houve grande amplitude entre os gentipos quanto ao teor de leo essencial, variando de 0,202 a 2,536 ml/100g e para o rendimento de leo essencial, variando de 1,103 a 21,817 l/ha. Avaliando as variveis teor e rendimento de leo essencial de O. basilicum pode-se selecionar os gentipos NSL6421, PI197442, PI358464, PI414194, PI531396 e 'Fino Verde' para o programa de melhoramento gentico que visa a obteno de novas cultivares de manjerico com alto rendimento de leo essencial rico em linalol. Abstract in english The sweet basil (Ocimum basilicum L.), can be an annual or a perennial plant depending on the place where it is grown. This plant has several culinary, ornamental, medicinal and aromatic uses. The value of its essential oil in the international market depends on the percentage of linalool. We charac [...] terized the morphologic and agronomic qualities of the Ocimum accessions, to select genotypes with higher yield of essential oil rich in linalool. Experiment design consisted of randomized blocks with two replications, evaluating 55 genotypes of the Germplasm Bank of Ocimum from the Universidade Federal do Sergipe, Brazil. The plant height, dry matter of the aerial plant parts, essential oil content and yield were evaluated. A wide diversity among the genotypes was observed for all morphological and agronomical traits evaluated. A large amplitude occurred among genotypes regarding the content of essential oil from 0,202 to 2,536 ml/100g. For the essential oil yield an amplitude from 1,103 to 21,817 l/ha was observed. Evaluating the traits content and yield of O. basilicum essential oil the genotypes NSL6421, PI197442, PI358464, PI414194, PI531396 and 'Fino Verde' can be selected for breeding programs to obtain cultivars with a high yield of essential oil rich in linalool.

  15. Acupuncture Points of the Horse’s Distal Thoracic Limb: A Neuroanatomic Approach to the Transposition of Traditional Points

    Directory of Open Access Journals (Sweden)

    Lisa S. Lancaster

    2012-09-01

    Full Text Available Veterinary acupuncture charts were developed based on the concept of transpositional points whereby human acupuncture maps were adapted to animal anatomy. Transpositional acupuncture points have traditionally been placed in specific locations around the horse’s coronet and distal limb believed to be the closest approximation to the human distal limb points. Because the horse has a single digit and lacks several structures analogous to the human hand and foot, precisely transposing all of the human digital points is not anatomically possible. To date there is no published research on the effect of acupuncture treatment of the equine distal limb points. This paper presents a modified approach to equine distal limb point selection based on what is known from research on other species about the neuroanatomic method of acupuncture. A rationale is presented for modification of traditional equine ting points as well as additional points around the hoof and distal limb that do not appear in the standard textbooks of equine acupuncture. The anatomy and physiology of the equine foot likely to be affected by acupuncture are briefly reviewed. Modified neuroanatomic points are proposed that may be more accurate as transpositional points. As an example of clinical application, a neuroanatomic approach to acupuncture treatment of equine laminitis is presented.

  16. Is Empirical Four Pulmonary Vein Isolation Necessary for Focally Triggered Paroxysmal Atrial Fibrillation? Comparison of Selective Pulmonary Vein Isolation Versus Empirical Four Pulmonary Vein Isolation

    Directory of Open Access Journals (Sweden)

    Pak HN

    2008-07-01

    Full Text Available In this study the authors compared two different ablation strategies for the treatment of paroxysmal atrial fibrillation (AF: selective isolation of the pulmonary vein triggering AF (SePVI versus empirical isolation of all the four pulmonary veins (EmPVI.

  17. Mineral vein dynamics modeling (FRACS). Phase 1

    Energy Technology Data Exchange (ETDEWEB)

    Urai, J.; Virgo, S.; Arndt, M. [RWTH Aachen (Germany). Geologie-Endogene Dynamik] [and others

    2013-07-15

    The Mineral Vein Dynamics Modeling group ''FRACS'' is a team of 7 research groups from the Universities of Mainz, Aachen, Tuebingen, Karlsruhe, Bayreuth, ETH Zuerich and Glasgow working on an understanding of the dynamic development of fracturing, fluid flow and fracture sealing. World-class field laboratories, especially carbonate sequences from the Oman Mountains are studied and classified. State of the art numerical programs are written, expanded and used to simulate the dynamic interaction of fracturing, flow and resealing and the results are compared with the natural examples. Newest analytical technologies including laser scanning, high resolution X-ray microtomography, fluid inclusion and isotope analysis are performed to understand and compare the results of simulations with natural examples. A new statistical program was developed to classify the natural fracture and vein systems and compare them with dynamic numerical simulations and analytical models. The results of the first project phase are extremely promising. Most of the numerical models have been developed up to the stage where they can be used to simulate the natural examples. The models allow a definition of the first proxies for high fluid pressure and tectonic stresses. It was found out that the Oman Mountains are a complex and very dynamic system that constantly fractures and reseals from the scale of small veins up to the scale of large normal and strike slip faults. The numerical simulations also indicate that the permeability of such systems is not a constant but that the system adjusts to the driving force, for ex-ample high fluid pressure. When the system reseals fast a fluctuating behavior can be observed in the models where the system constantly fractures and reseals, which is in accordance with the observation of the natural laboratory.

  18. Renal angiomyolipoma with renal vein invasion

    Directory of Open Access Journals (Sweden)

    Francesca Di Cristofano

    2013-06-01

    Full Text Available Renal angiomyolipoma is a uncommon benign tumor, considered an hamartoma. The lesion, usually benign, can be single or multiple and well-circumscribed. In letterature only few cases of infiltrating angiomyolipomas have been described. The aim of the paper is to describe a paradigmatic case of a giant kidney angiomyolipoma, not associ- ated with tuberous sclerosis, invading the pelvis and the renal vein. The lesion have been discovered incidentally during abdominal ultrasound for other pathology. Owing to the extent of the lesion and the appreciable risk of bleeding, we opted for surgical treatment.

  19. Unilateral pulmonary vein atresia: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, So Hwa; Kim, Ki Jun [Dept. of Radiology, Incheon St. Mary' s Hospital, The Catholic University of Korea College of Medicine, Incheon (Korea, Republic of)

    2014-01-15

    Unilateral pulmonary vein atresia is a rare congenital anomaly. Its symptoms begin to manifest in childhood and a broad spectrum of clinical severity has been described, ranging from asymptomatic, recurrent pulmonary infection, severe hemoptysis, to death. Only a few adult cases with this condition, with no or mild symptoms, have been reported. Pulmonary angiography has been typically used for definite diagnosis. However, pulmonary angiography may be replaced with the current developing multidetector CT. This report presents an adult case with mild symptoms, diagnosed by multidetector CT.

  20. Masseteric-facial nerve transposition for reanimation of the smile in incomplete facial paralysis.

    Science.gov (United States)

    Hontanilla, Bernardo; Marre, Diego

    2015-12-01

    Incomplete facial paralysis occurs in about a third of patients with Bell's palsy. Although their faces are symmetrical at rest, when they smile they have varying degrees of disfigurement. Currently, cross-face nerve grafting is one of the most useful techniques for reanimation. Transfer of the masseteric nerve, although widely used for complete paralysis, has not to our knowledge been reported for incomplete palsy. Between December 2008 and November 2013, we reanimated the faces of 9 patients (2 men and 7 women) with incomplete unilateral facial paralysis with transposition of the masseteric nerve. Sex, age at operation, cause of paralysis, duration of denervation, recipient nerves used, and duration of follow-up were recorded. Commissural excursion, velocity, and patients' satisfaction were evaluated with the FACIAL CLIMA and a questionnaire, respectively. The mean (SD) age at operation was 39 (±6) years and the duration of denervation was 29 (±19) months. There were no complications that required further intervention. Duration of follow-up ranged from 6-26 months. FACIAL CLIMA showed improvement in both commissural excursion and velocity of more than two thirds in 6 patients, more than one half in 2 patients and less than one half in one. Qualitative evaluation showed a slight or pronounced improvement in 7/9 patients. The masseteric nerve is a reliable alternative for reanimation of the smile in patients with incomplete facial paralysis. Its main advantages include its consistent anatomy, a one-stage operation, and low morbidity at the donor site. PMID:26143295

  1. Cancer: re-evolution of eucaryotic to procaryotic replication units--a result of genetic transposition?

    Science.gov (United States)

    Grossgebauer, K

    We have consistently tried to present our "procaryote-hypothesis" of oncogenesis in the light of evolution. It is suggested that the replication units are the essential starting points of oncogenesis, and cancer is the result of a short and compact re-evolution from eucaryotic to procaryotic replicons. In our view, the process of re-evolution or reactivation of procaryotic replication units and/or their precursors starts with the activity of a cancerogen and proceeds by genetic rearrangements, possibly by genetic transposition. Consequently, some remarks had to be made on: (a) the evolution of self-replicative species; (b) the evolvement of procaryotes to eucaryotes; and (c) the various mobile repeated genetic elements. Moreover, we have taken into consideration the important fact that most of the mammalian genome is reversibly repressed and "that there is in these modern genes still a memory of ancient sequences" ( Eigen et al., 1981). We can only speculate on the extent of the evolutionary conservation, particularly of certain ancient nucleotide sequences related to autonomous, indefinite self-replication. Nevertheless, no real argument can be made against the simple possibility that a re-evolution of eucaryotic to procaryotic replicons lead to cancer. PMID:6324922

  2. Long Term Follow-Up in Inferior Alveolar Nerve Transposition: Our Experience

    Science.gov (United States)

    Gasparini, Giulio; Boniello, Roberto; Marianetti, Tito Matteo; Foresta, Enrico; Torroni, Andrea; Longo, Giuliana; Azzuni, Camillo; Pelo, Sandro

    2014-01-01

    Introduction. Inferior alveolar nerve transposition (IANT) is a surgical technique used in implantoprosthetic rehabilitation of the atrophic lower jaw which has not been well embraced because of the high risk of damage to the inferior alveolar nerve (IAN). There are cases in which this method is essential to obtain good morphologic and functional rebalancing of the jaw. In this paper, the authors present their experience with IANT, analyzing the various situations in which IANT is the only surgical preprosthetic option. Methods. Between 2003 and 2011, 35 patients underwent surgical IANT at our center. Thermal and physical sensitivity were evaluated in each patient during follow-up. The follow-up ranged from 14 to 101 months. Results and Conclusion. Based on our experience, absolute indications of IANT are as follows: (1) class IV, V, or VI of Cawood and Howell with extrusion of the antagonist tooth and reduced prosthetic free space; (2) class V or VI of Cawood and Howell with presence of interforaminal teeth; (3) class V or VI of Cawood and Howell if patient desires fast implantoprosthetic rehabilitation with predictable outcomes; (4) class VI of Cawood and Howell when mandibular height increase with inlay grafts is advisable. PMID:24949422

  3. Metabolic alterations and neurodevelopmental outcome of infants with transposition of the great arteries.

    Science.gov (United States)

    Park, I Sook; Yoon, S Young; Min, J Yeon; Kim, Y Hwue; Ko, J Kok; Kim, K Soo; Seo, D Man; Lee, J Hee

    2006-01-01

    Abnormal neurodevelopment has been reported for infants who were born with transposition of the great arteries (TGA) and underwent arterial switch operation (ASO). This study evaluates the cerebral metabolism of TGA infants at birth and before ASO and neurodevelopment 1 year after ASO. Proton magnetic resonance spectroscopy (1H-MRS) was performed on 16 full-term TGA brains before ASO within 3-6 days after birth. The brain metabolite ratios of [NAA/Cr], [Cho/Cr], and [mI/Cr] evaluated measured. Ten infants were evaluated at 1 year using the Bayley Scales of Infants Development II (BSED II). Cerebral metabolism of infants with TGA was altered in parietal white matter (PWM) and occipital gray matter (OGM) at birth before ASO. One year after ASO, [Cho/Cr] in PWM remained altered, but all metabolic ratios in OGM were normal. The results of BSID II at 1 year showed delayed mental and psychomotor development. This delayed neurodevelopmental outcome may reflect consequences of the altered cerebral metabolism in PWM measured by 1H-MRS. It is speculated that the abnormal hemodynamics due to TGA in utero may be responsible for the impaired cerebral metabolism and the subsequent neurodevelopmental deficit. PMID:16897317

  4. The Managerial Reduction in the Management Technologies Transposition Process to Public Organizations

    Directory of Open Access Journals (Sweden)

    Sandro Trescastro Bergue

    2010-04-01

    Full Text Available This essay discusses the phenomenon of the implementation of technologies designed in the management business, with emphasis on relations with public organizations. It proposes a reflection on the concept of sociological reduction by Guerreiro Ramos, recovering its roots in Husserl and Heidegger and their relationship with the concepts of creative adaptation and the translation of managerial issues. Contextualized in the paradigm of new public management and the list of values and assumptions on which this movement is based, the analysis of the reproduction of practices known in private organizations by public ones seeking their legitimacy has revealed the formality and ceremonial aspect of this contemporary phenomenon. The importance of bringing knowledge from the organizational field that subsidizes management as well as the coherence of these cultural objects in terms of concepts and assumptions of organization are highlighted here. The process of transpositions, contrasting with reproducible traits of Brazilian managerial culture that are historically constructed but consistent with the notion of sociological reduction, requires a critical, conscious and engaged attitude on the part of members of the organization not only regarding the relevance of the imported content but also giving new meaning to the concepts underlying the management technologies.

  5. Splanchnic Vein Thrombosis in the Mediterranean Area in Children

    OpenAIRE

    El-Karaksy, Hanaa; El-Raziky, Mona

    2011-01-01

    Abdominal venous thrombosis may present as splanchnic venous thrombosis (SVT) (occlusion of portal, splenic, superior or inferior mesenteric veins) or Budd- Chiari Syndrome (BCS) (thrombosis of inferior vena cava and/or hepatic veins). The aim of this review is to report the scanty data available for SVT in the South Mediterranean area. In one Egyptian study, the possible circumstantial risk factors for portal vein thrombosis (PVT) were found in 30% of cases: 19% neonatal sepsis, 8.7% umbilic...

  6. The fine structure of the human ovarian vein.

    OpenAIRE

    Stones, R. W.; Turmaine, M; Beard, R. W.; Burnstock, G

    1994-01-01

    The human ovarian vein is of particular interest as an adult vessel which changes with the different phases of reproductive life. At the ultrastructural level we have characterised the endothelium, vascular smooth muscle and autonomic innervation of the human ovarian vein. Transmission electron micrographs were prepared from surgical specimens of the human ovarian vein (n = 11) to demonstrate the features of the vessel wall. The pattern of innervation was investigated using an image analysis ...

  7. Aetiology of Deep Vein Thrombosis in 63 Turkish Patients

    OpenAIRE

    EB?, Niyazi; TANRIVERD?, Sleyman

    2009-01-01

    Aim: The aetiology of deep vein thrombosis differs among populations throughout the world. This study examines the aetiology of deep vein thrombosis in Turkish patients. Materials and Methods: Our study involved the treatment of 63 patients, including follow-up in our outpatient department, between November 2006 and December 2007. There were 29 female and 34 male patients with a mean age of 49.35 + 14.19 (range 25 - 85 years). Deep vein thrombosis was identified using a Doppler-/ duplex so...

  8. Postpartum Ovarian Vein Thrombosis: Incidental Diagnosis at Surgery

    OpenAIRE

    Adebiyi Gbadebo Adesiyun; Modupeola O. A. Samaila; Austin Ojabo

    2014-01-01

    Ovarian vein thrombosis is a rare clinical entity that may present in the puerperium. We report the clinical outcomes of two cases of postpartum ovarian vein thrombosis, incidentally diagnosed at laparotomy in 16-year-old and 23-year-old females. They had preoperative diagnosis of torsion tuboovarian mass and twisted pedunculated uterine fibroid, respectively. Both patients had transection and ligation of right thrombosed ovarian vein. Postoperative management included a week course of antico...

  9. Cross-Database Evaluation With an Open Finger Vein Sensor

    OpenAIRE

    Vanoni, Matthias; Tome, Pedro; El Shafey, Laurent; Marcel, Sbastien

    2014-01-01

    Finger vein recognition is a recent biometric application, which relies on the use of human finger vein patterns beneath the skin's surface. While several methods have been proposed in the literature, its applicability to uncontrolled scenarios has not yet been shown. To this purpose this paper first introduces the VERA database, a new challenging publicly available database of finger vein images. This corpus consists of 440 index finger images from 110 subjects collected with an open device ...

  10. Aneurysmal malformation of the extrahepatic portal vein: a case report

    International Nuclear Information System (INIS)

    Aneurysmal malformation of the portal vein is a rare entity. To our knowledge, only scattered reports of portal vein aneurysms appear in the literature in English, and there is no previously published report in Korean. We describe a case exhibiting aneurysmal malformation of the extrahepatic portal vein at the hepatic hilum ; the findings demonstrated by ultrasound, CT and angiography are discussed, a review of previously described cases is included

  11. Retrograde phlebography of the internal spermatic vein in varicocele

    International Nuclear Information System (INIS)

    The results of retrograde phlebography of the internal spermatic vein in 110 cases of varicocele are reported. The anatomy of the vein, including the sites of its orifices and its possible communications with other veins of the area are described. Observations with the catheter method as well as some hitherto unpublished findings are presented. The significance of selective and superselective venography for the choice of the appropriate surgical procedure is emphasized. (author)

  12. Retrograde phlebography of the internal spermatic vein in varicocele

    Energy Technology Data Exchange (ETDEWEB)

    Vajda, J.; Boehm, K.; Horvath, L.; Molnar, Z. (Pecsi Orvostudomanyi Egyetem (Hungary))

    1981-01-01

    The results of retrograde phlebography of the internal spermatic vein in 110 cases of varicocele are reported. The anatomy of the vein, including the sites of its orifices and its possible communications with other veins of the area are described. Observations with the catheter method as well as some hitherto unpublished findings are presented. The significance of selective and superselective venography for the choice of the appropriate surgical procedure is emphasized.

  13. Perivascular mast cells regulate vein graft neointimal formation and remodeling

    OpenAIRE

    Wu, Junxi; Grassia, Gianluca; Cambrook, Helen; Ialenti, Armando; MacRitchie, Neil; Carberry, Jaclyn; Wadsworth, Roger M.; Lawrence, Catherine; Kennedy, Simon; Maffia, Pasquale

    2015-01-01

    Objective. Emerging evidence suggests an important role for mast cells in vein graft failure. This study addressed the hypothesis that perivascular mast cells regulate in situ vascular inflammatory and proliferative responses and subsequent vein graft neointimal lesion formation, using an optimized local mast cell reconstitution method. Methods and Results. Neointimal hyperplasia was induced by insertion of a vein graft into the right carotid artery in wild type and mast cell deficient Ki...

  14. Aneurysms and pseudoaneurysms of saphenous vein coronary artery bypass grafts

    OpenAIRE

    Le Breton, H; Pavin, D; Langanay, T; Roland, Y; Leclercq, C; Beliard, J; Bedossa, M; Rioux, C.; Pony, J

    1998-01-01

    Aneurysms of saphenous vein grafts to coronary arteries are unusual complications of coronary artery bypass graft (CABG) surgery. Three patients (men aged 47,62,and 68years) are presented with spontaneous chest pains 10,21,and 17years after CABG surgery. In one case, the saphenous vein graft had eroded into the right atrium and had established a fistula between the graft and the right atrium. Diagnosis of saphenous vein graft aneurysms was confirmed by echocardiography, computed tomogra...

  15. Clinical pharmacology, physiology and pathophysiology of superficial veins--1.

    OpenAIRE

    Aellig, W H

    1994-01-01

    1. Venous resistance contributes very little to total peripheral resistance; more than half of the total blood volume, however, is contained in the extrathoracic veins. Owing to marked differences between venous and arterial anatomy and physiology, studies on veins and arteries usually require different methodological approaches. Whereas for arteries the most relevant parameters are resistance, pressure and flow, for veins volume and compliance are most important. For studies of general aspec...

  16. Image Quality Enhancement Using the Direction and Thickness of Vein Lines for Finger-Vein Recognition

    Directory of Open Access Journals (Sweden)

    Young Ho Park

    2012-10-01

    Experimental results from application of our proposed image enhancement method show that the equal error rate (EER of finger‐vein recognition decreases to approximately 0.4% in the case of a local binary pattern‐ based recognition and to approximately 0.3% in the case of a wavelet transform‐based recognition.

  17. Marginal vein is not a varicose vein; it is a venous malformation

    Directory of Open Access Journals (Sweden)

    Byung-Boong Lee

    2014-12-01

    Full Text Available Marginal vein (MV is one form of venous malformation (VM; MV is not a varicose vein. MV is the outcome of defective development during the later stage of embryogenesis while the vein trunk is formed. It is an embryonic vein tissue remnant remaining on birth following the failure of normal involutional process. MV is the most common VM involved to Klippel-Trenaunay syndrome (KTS; together with the lymphatic malformation, MV is one of two clinically most important congenital vascular malformation components among KTS. MV causes chronic venous insufficiency (CVI due to a unique condition of avalvulosis (lack of venous valve development it accompanies with. Besides, it accompanies a high risk of venous thromboembolism (VTE due to its structural defect with a lack of smooth muscle cell to form the media properly as a truncular VM infrequently causing fatal pulmonary embolism. Therefore, the MV is indicated for the surgical excision whenever feasible not only for the prevention of VTE and CVI but also for abnormal long bone growth known as vascular bone syndrome as well as lymphatic complication precipitated by MV.

  18. Endovenous saphenous vein ablation in patients with acute isolated superficial-vein thrombosis

    Science.gov (United States)

    2015-01-01

    Objective: The possible benefits of endovenous saphenous ablation (EVSA) as initial treatment in patients presenting with isolated superficial-vein thrombosis (SVT) and saphenous vein reflux include: (1) definitive treatment of the underlying pathology and (2) elimination of the saphenous vein as a path for pulmonary emboli, which (3) may eliminate the need for anticoagulation. Methods: In a ten-year review of 115 limbs presenting with acute isolated SVT, 72 limbs (71 patients) with saphenous reflux were given a choice of two treatments following an explanation of the risks and benefits of each. Group I limbs (n?=?41) were treated with office EVSA using radiofrequency or laser with or without thrombophlebectomy if performed within 45 days of diagnosis. Post-treatment anticoagulants were not given. Group II limbs (n?=?31) were treated with compression hose and repeat Duplex within one week, with added anticoagulants if SVT extended into the thigh. Results: In group I, mean interval from diagnosis to treatment was 13.7 days. One calf deep vein thrombosis was noted. In group II no complications were noted. In late follow-up of group II patients, 12/29 underwent EVSA more than 45 days after initial presentation. Conclusions: The safety and efficacy of EVSA and thrombophlebectomy appear indistinguishable from conservative measures and may be offered as initial treatment to patients presenting with SVT and saphenous reflux. PMID:24307241

  19. Finger-vein verification based on multi-features fusion.

    Science.gov (United States)

    Qin, Huafeng; Qin, Lan; Xue, Lian; He, Xiping; Yu, Chengbo; Liang, Xinyuan

    2013-01-01

    This paper presents a new scheme to improve the performance of finger-vein identification systems. Firstly, a vein pattern extraction method to extract the finger-vein shape and orientation features is proposed. Secondly, to accommodate the potential local and global variations at the same time, a region-based matching scheme is investigated by employing the Scale Invariant Feature Transform (SIFT) matching method. Finally, the finger-vein shape, orientation and SIFT features are combined to further enhance the performance. The experimental results on databases of 426 and 170 fingers demonstrate the consistent superiority of the proposed approach. PMID:24196433

  20. Persistent varicocele following high ligation of the internal spermatic vein

    International Nuclear Information System (INIS)

    The importance of phlebography and vaso-occlusion using ethibloc in diagnosis and treatment of the persistent varicocele following ligation ('Bernardis' technique') is demonstrated. We performed 280 surgical ligations of the internal spermatic vein. In 30 patients persistence of the varicocele was found. In 9 patients following phlebography embolisation of a long segment including smaller collaterals was performed using ethibloc. The other 21 patients were treated surgically because of unusual draining of the collaterals into renal capsular veins, into the hemiazygos vein and into renal segmental veins. In all cases following embolisation complete resolution of the varicocele was observed within 3 months. (orig.)

  1. Microbiological analysis of pre-packed sweet basil (Ocimum basilicum) and coriander (Coriandrum sativum) leaves for the presence of Salmonella spp. and Shiga toxin-producing E. coli.

    Science.gov (United States)

    Delbeke, Stefanie; Ceuppens, Siele; Jacxsens, Liesbeth; Uyttendaele, Mieke

    2015-09-01

    Enteric pathogens, such as Salmonella spp. and pathogenic Escherichia coli, have been detected and associated with food borne outbreaks from (imported) fresh leafy herbs. Screening on imported herbs from South East Asian countries has been described. However, limited information on prevalence of these pathogens is available from other sourcing regions. Therefore, fresh pre-packed basil and coriander leaves from a Belgian trading company were investigated for the presence of Salmonella spp., Shiga toxin-producing E. coli (STEC), generic E. coli and coliforms. In total 592 samples were collected originating from Belgium, Israel and Cyprus during 2013-2014. Multiplex PCR followed by further culture confirmation was used for the detection of Salmonella spp. and STEC, whereas the Petrifilm Select E. coli and VRBL-agar were used, respectively, for the enumeration of E. coli and coliforms. Salmonella was detected in 10 out of 592 samples (25g) (1.7%; 5 from basil and 5 from coriander), of which two samples were sourced from Israel and eight from Cyprus. The presence of STEC was suspected in 11 out of 592 samples (25g) (1.9%; 3 basil and 8 coriander), due to the detection of stx and eae genes, of which one sample originated from Belgium, four from Israel and six from Cyprus. No STEC was isolated by culture techniques, but in three samples a serotype (O26, O103 or O111) with its most likely associated eae-variant (? or ?) was detected by PCR. Generic E. coli was enumerated in 108 out of 592 samples, whereby 55, 32 and 13 samples respectively between 10-100, 100-1000 and 1000-10,000cfu/g and 8 samples exceeding 10,000cfu/g. Coliforms were enumerated in all herb samples at variable levels ranging from 1.6 to 7.5logcfu/g. Further statistics indicate that the E. coli class (categorized by level) was significantly correlated with the presence of Salmonella (pcoriander sourced from different cultivation regions, may contain enteric pathogens and potentially pose a risk for human health. PMID:26005779

  2. Vein arterialization for lower limb revascularization.

    Science.gov (United States)

    Houlind, Kim; Christensen, Johnny K; Jepsen, Jrn M

    2016-04-01

    Conventional bypass surgery is only possible when patent distal arterial outflow vessels are available. In patients with critical limb ischemia and occluded distal arteries, attempts have been made to establish retrograde perfusion through either deep or superficial pedal veins. Though historical results were disappointing, more recently limb salvage has been achieved after adopting a principle of 1) placing the anastomosis distally, and 2) actively destroying the distal valves. Experimental, para-clinical, and clinical data confirm that direct tissue nutrition is improved, angiogenesis stimulated, and collaterals opened. Only a limited number of cases have been reported in the literature and a number of different operative techniques have been described. The results in terms of limb salvage and wound healing vary widely. Generally, results are poorer than what would have been expected if femoro-distal arterial bypass had been possible. Recently, hybrid approaches have been developed to avoid extensive distal incisions by endovascular destruction of valves and closure of side branches. Also, a totally endovascular technique, including the position of a stent graft between the vein and artery, has been proposed and tested. These developments may in the future improve results by limiting incisional wound complications and make this treatment available to more patients who would otherwise have no other alternative than amputation. PMID:26683823

  3. Arterialisation of the Portal Vein With an Aortoportal Jump Graft for Portal Vein Thrombosis Following Liver Resection for Malignancy

    OpenAIRE

    Jiao, Long R; Nagy Habib

    1999-01-01

    Fibrolamellar hepatocellular carcinoma (FHCC) is a variant of hepatocellular carcinoma, which mainly affects a young age group and carries a relatively good prognosis. It is widely accepted that aggressive curative resection is still the best option for FHCC. We report here a case of successful arterialisation of the portal vein with an aortoportal jump graft for portal vein thrombosis, which developed postoperatively in an already comprised portal vein with tumour inv...

  4. Rare variant of mixed total anomalous pulmonary venous connection with ascending vertical vein: unusual drainage to jugular vein

    Directory of Open Access Journals (Sweden)

    Yong-zhi DENG

    2014-06-01

    Full Text Available Cases of mixed total anomalous pulmonary venous connection were rare, while cases of the vertical vein drained to jugular vein were even rarer. Pay attention to the size of pulmonary vein and left atrial anastomosis, increase the left atrium volume with pericardial patch, which play an important role to prevent postoperative pulmonary edema caused by anastomosis stenosis, poor back flow of coronary sinus and smaller left atrial volume.

  5. Antioxidant potential of oregano (Oreganum vulgare L., basil (Ocimum basilicum L. and thyme (Thymus vulgaris L.: application of oleoresins in vegetable oil

    Directory of Open Access Journals (Sweden)

    Patrcia Vieira Del R

    2011-12-01

    Full Text Available Studies have been carried out in order to increase the stability of vegetable oils due to economic and health protection reasons. There is a growing interest in the addition of natural antioxidants; especially herbs and spices. For this reason, this study aimed at evaluating the antioxidant potential of the oleoresins of oregano, basil, and thyme, as well as their behavior when applied to soybean oil under various concentrations. Firstly, the antioxidant activity was determined by the ?-carotene/linoleic acid system and by the quantification of total phenolic compounds. Next, different concentrations of oleoresins (500 to 3000 mg.kg-1 were added to the soybean oil, and its antioxidant potential was analyzed using the oxidative stability through a Rancimat equipment. The value of 3000 mg.kg-1 of thyme and oregano oleoresins was the concentration that presented the greatest oxidative stability to soybean oil making them a natural alternative to vegetable oil conservation.

  6. Preventing intimal thickening of vein grafts in vein artery bypass using STAT-3 siRNA

    Directory of Open Access Journals (Sweden)

    Sun Jiangbin

    2012-01-01

    Full Text Available Abstract Background Proliferation and migration of vascular smooth muscle cells (VSMCs play a key role in neointimal formation which leads to restenosis of vein graft in venous bypass. STAT-3 is a transcription factor associated with cell proliferation. We hypothesized that silencing of STAT-3 by siRNA will inhibit proliferation of VSMCs and attenuate intimal thickening. Methods Rat VSMCs were isolated and cultured in vitro by applying tissue piece inoculation methods. VSMCs were transfected with STAT 3 siRNA using lipofectamine 2000. In vitro proliferation of VSMC was quantified by the MTT assay, while in vivo assessment was performed in a venous transplantation model. In vivo delivery of STAT-3 siRNA plasmid or scramble plasmid was performed by admixing with liposomes 2000 and transfected into the vein graft by bioprotein gel applied onto the adventitia. Rat jugular vein-carotid artery bypass was performed. On day 3 and7 after grafting, the vein grafts were extracted, and analyzed morphologically by haematoxylin eosin (H&E, and assessed by immunohistochemistry for expression of Ki-67 and proliferating cell nuclear antigen (PCNA. Western-blot and reverse transcriptase polymerase chain reaction (RT-PCR were used to detect the protein and mRNA expression in vivo and in vitro. Cell apoptosis in vein grafts was detected by TUNEL assay. Results MTT assay shows that the proliferation of VSMCs in the STAT-3 siRNA treated group was inhibited. On day 7 after operation, a reduced number of Ki-67 and PCNA positive cells were observed in the neointima of the vein graft in the STAT-3 siRNA treated group as compared to the scramble control. The PCNA index in the control group (31.3 4.7 was higher than that in the STAT-3 siRNA treated group (23.3 2.8 (P Conclusions The STAT-3 siRNA can inhibit the proliferation of VSMCs in vivo and in vitro and attenuate neointimal formation.

  7. Transposio miditica: da sala de aula convencional para a presencial conectada / La transposition mediatique: de la salle de classe conventionnelle la salle de classe presentielle connecte / Mediatic transposition: from conventional classroom to face-connected classroom

    Scientific Electronic Library Online (English)

    Francisco, Garonce; Gilberto Lacerda, Santos.

    2012-12-01

    Full Text Available O artigo apresenta o conceito de transposio miditica e, para tal, fundamenta-se nos resultados de uma pesquisa acadmica que identificou os impactos provocados pela tecnologia da videoconferncia pela internet, ou webconferncia, nao educativa (modo de ensinar), focando as alteraes nos papis [...] docentes. O estudo de caso etnogrfico mostrou de que modo a ao docente foi modificada pela situao educativa na qual alunos e professores interagiram face a face, mediados pela tecnologia, de modo sncrono a distncia, caracterizando a educao presencial conectada. A investigao tomou como ponto de partida a teoria da transposio didtica dos saberes (Chevallard, 1985), tendo identificado e analisado mudanas na prtica docente, especificamente nos papis docentes, caracterizando o fenmeno da transposio miditica. Abstract in english The focus of this article is to introduce the Mediatic Transposition concept referring to the results of a Brazilian research project that sought to identify impacts of Internet videoconferencing (web conferencing) use in education with an emphasis on the changing role of teachers brought on by this [...] new technology. The ethnographic study identified how the teaching tasks changed when pupils and instructors interacted face to face, mediated by technology, using a synchronous communication tool in a hybrid mode of education. This new educational environment in cyberspace is the face-connected classroom. The research took as its starting point studies related to the Didactic Transposition (Chevallard, 1985) and the research addressed changes in teaching practices that were identified and analyzed, specifically those that impacted on the role of instructors during the transition from conventional to face-connected classrooms characterizing Mediatic Transposition.

  8. Medial rotation deformity of the hip in cerebral palsy: Surgical treatment by transposition of gluteal muscles

    Directory of Open Access Journals (Sweden)

    ?obelji? Goran

    2005-01-01

    Full Text Available INTRODUCTION Medial rotation deformity of the hip is a problem to patients who are handicapped by cerebral palsy but able to walk, because the knees point inward during gait (kissing patellae" and cause falls and frequent injuries. Knees and ankles are subject to stress and, therefore, they assume compensating positions. Lower legs assume position of valgus and external rotation, whereas feet rotate either inwards or outwards. Secondary deformities make gait more difficult and cause rapid tear of footwear. AIM The purpose of the paper was to retrospectively analyze the effects of transposition of the gluteus medius and minimus muscles, a procedure introduced for the first time in our country in order to correct the deformity. A new method of binding the muscles by wire was described. There had been no previous experience with this method. METHOD This operation was indicated in patients with spastic form of cerebral palsy, who were able to walk, who had difficulties in gait and whose lateral rotation was less than 10 along with the medial rotation of over 70 of the hip on the side of the deformity. Additional prerequisite for the operation was the absence of flexion contracture of more than 15 of either the hip or the knee on the side of deformity, as there is possibility of aggravation of the flexion hip deformity due to transposed gluteal muscles (now in front of the hip joint. Fifteen hips of 10 patients were operated on. Five patients were operated on bilaterally at one time. The average age was 8 (6-12 years. The majority of patients, 8 (80% were aged between 6 and 8. The average follow-up was 5 years (3-8. The assessment of the results was based on the comparison of rotational abilities of both hips before and after the operation (in unilateral and bilateral deformities, as well as on individual complaints before and after the operation. In patients with unilateral deformity, their healthy" hips were the control hips. The analysis of the femoral neck anteversion before and after operation was performed. RESULTS Average values of medial and lateral rotation of the deformed hips before operation exhibited significant statistical difference when compared to control hips. The difference of average values of rotatory movements of control and operated hips was not statistically significant after operation. The difference of average preoperative values of the femoral neck anteversion in hips with deformity was statistically significant (49.404.63 compared to 32.83.1G. Postoperative average values of anteversion in operated and control hips were not statistically significant. The difference between average preoperative (49.404.63 and postoperative (35.807.66 values of the femoral neck anteversion was statistically significant. Excellent results were achieved in 5 (50% patients, i.e. 8 (53.3% hips; good results were achieved in 3 (30% patients, i.e. 5 (33.3% hips; poor result in 2 (20% patients, i.e. 2 (13.3% hips. All 5 patients who had undergone surgery of both hips had symmetric outcome. Three patients had excellent results, while two had good results. Patients with excellent and good results (80% of patients, 86.6% of hips showed neither weakening of the operated hip abduction nor pelvic instability (positive Trendelenburgh hip test. No complications were recorded postoperatively. CONCLUSION Transposition of gluteal muscles can be recommended in patients under 10 years of age as there is still a chance for their femoral neck to change orientation, to decrease the anteversion and thus to achieve long-lasting effect. Fixation of transposed muscles by wire proved to be effective.

  9. Interactive effects of different Cr3+ concentrations and manure on activity of some antioxidant enzymes and accumulation of compatible osmolytes in basil (Ocimum basilicum L.

    Directory of Open Access Journals (Sweden)

    J. Bardel

    2015-06-01

    Full Text Available To study the activity of some antioxidant enzymes and accumulation of compatible osmolytes affected by different concentrations of chromium (Cr+3 (0, 5, 10, 15 and 20 mg/kg soil combined with different levels of manure (0, 10 and 20 ton/ha in basil (O. basilicum L., a factorial experiment, based on completely randomized design with four replications, was carried out at Research Greenhouse of Zabol University in 2012. Results of this study indicated that increasing the level of Cr+3 from 0 to 20 mg/kg soil, when 20 ton/ha manure was applied, decreased the activity of catalase (CAT, ascorbate peroxidase (APX and glutathione peroxidase (GPX enzymes decreased from 0.008, 0.537 and 0.081 to 0.006, 0.305 and 0.071 mol H2O2/mg protein, respectively. This may be caused by the improvement in physiological activities of the plant in the presence of organic compounds. It seems that application of different amounts of manure led to an increase in leaf proline and carbohydrates content, via availability of macro- and- micro nutrients, especially nitrogen, even when different levels of Cr3+ heavy metal existed in the growth medium. The obtained correlation coefficients indicated a significant positive relationship between most physiological traits, and the highest correlation coefficient (0.84 was found between proline and soluble carbohydrates. It appears that organic compounds, such as manure, have considerable potential to reduce the harmful effects of Cr3+ heavy metal and improve physiological indices of basil.

  10. Derepression of the plant Chromovirus LORE1 induces germline transposition in regenerated plants

    DEFF Research Database (Denmark)

    Fukai, Eigo; Umehara, Yosuke

    2010-01-01

    Transposable elements represent a large proportion of the eukaryotic genomes. Long Terminal Repeat (LTR) retrotransposons are very abundant and constitute the predominant family of transposable elements in plants. Recent studies have identified chromoviruses to be a widely distributed lineage of Gypsy elements. These elements contain chromodomains in their integrases, which suggests a preference for insertion into heterochromatin. In turn, this preference might have contributed to the patterning of heterochromatin observed in host genomes. Despite their potential importance for our understanding of plant genome dynamics and evolution, the regulatory mechanisms governing the behavior of chromoviruses and their activities remain largely uncharacterized. Here, we report a detailed analysis of the spatio-temporal activity of a plant chromovirus in the endogenous host. We examined LORE1a, a member of the endogenous chromovirus LORE1 family from the model legume Lotus japonicus. We found that this chromovirus is stochastically de-repressed in plant populations regenerated from de-differentiated cells and that LORE1a transposes in the male germline. Bisulfite sequencing of the 5' LTR and its surrounding region suggests that tissue culture induces a loss of epigenetic silencing of LORE1a. Since LTR promoter activity is pollen specific, as shown by the analysis of transgenic plants containing an LTR::GUS fusion, we conclude that male germline-specific LORE1a transposition in pollen grains is controlled transcriptionally by its own cis-elements. New insertion sites of LORE1a copies were frequently found in genic regions and show no strong insertional preferences. These distinctive novel features of LORE1 indicate that this chromovirus has considerable potential for generating genetic and epigenetic diversity in the host plant population. Our results also define conditions for the use of LORE1a as a genetic tool.

  11. One-year outcome of Senning operation in children with transposition of the great vessels

    Directory of Open Access Journals (Sweden)

    Shahmohammadi A

    2011-08-01

    Full Text Available "nBackground: Nowadays, the treatment of choice for anatomical correction of transposition of great arteries is arterial switch but some children are not good candidates for this operation. In these cases atrial switch or Senning procedure is an accepted method, thus outcome of this procedure needs to be better delineated."n "nMethods: This prospective study included 65 patients that underwent Senning operation in Shahid Rajaee Hospital in Tehran, Iran from 2002 to 2009 and were followed-up for one year."n "nResults: The early and late mortality rates were 16.9% and 1.5%, respectively. 51.8% of early deaths were due to simple Senning procedure, 38.9% due to a Senning with the closure of ventricular septal defect, with or without the repair of pulmonary artery stenosis, 9.3% related to palliative Senning and one late death due to simple Senning. The most common arrhythmia was accelerated junctional rhythm (18.5%. 15% of cases had Senning pathway obstruction and 1.7% had baffle leaks. Regardless of the mortalities, three patients (5.7% had significant tricuspid regurgitation. Right ventricular systolic dysfunction was found in 13.3% of the cases, primarily in Senning with ventricular septal defect closure (37.5%. One case (1.9% had visible cyanosis and three (5.7% had exertional dyspnea but 94.3% of cases remained in functional class I."n "nConclusion: Since the majority of deaths following Senning procedure occur during the first month, especially on the second day post-operatively, assiduity during early post-operative period is crucial. Tricuspid regurgitation or right ventricular systolic dysfunction was not detected in most patients, suggesting optimistic prognosis for these patients.

  12. Anestesia en la transposicin de los grandes vasos ANESTHESIA IN THE TRANSPOSITION OF THE GREAT VESSELS

    Directory of Open Access Journals (Sweden)

    Lincoln de la Parte Prez

    2005-03-01

    Full Text Available La transposicin de los grandes vasos es una cardiopata compleja que se acompaa de una elevada mortalidad. Se conoce que el 45 % de los pacientes fallece durante el primer mes de vida y alrededor del 90 % antes del ao. Las principales causas de la muerte son la hipoxia y la insuficiencia cardaca. El desarrollo de las especialidades que trabajan en ciruga cardiovascular peditrica ha permitido aumentar la supervivencia de estos nios, especialmente con el uso de prostaglandinas para mantener el ductus permeable, la tcnica de Raskind-Miller ( septostoma de baln y una tendencia cada vez mayor a la correccin anatmica temprana (operacin de Jatene en lugar de los clsicos procedimientos paliativos y las tcnicas de correccin fisiolgica de Senning y Mustard . Se presenta una revisin bibliogrfica sobre los factores a tener en cuenta en el manejo anestsico de estos pacientes.The transposition of the great vessels is a complex heart disease accompanied of a high mortality. It is known that 45 % of the patients die during the first month of life and at about 90 % do it before being one year old. The main causes of death are hypoxia and heart failure. The development of the specialties working in pediatric cardiovascular surgery has allowed to increase the survival of these children, specially with the use of prostaglandins to maintain the ductus permeable, the Raskind-Miller's technique (balloon septostomy, and an increasing trend towards an early anatomical correction (Jatene's operation to replace the classical palliative procedures and Senning and Mustartd's techniques of physiological correction. A bibliographic review of the factors to be taken into account in the anesthetic management of these patients is presented.

  13. Transposicin corregida de grandes vasos / Corrected transposition of the great arteries

    Scientific Electronic Library Online (English)

    Jos Rafael, Escalona Aguilera; Alberto, Ramrez Ramos; Marcia, Lpez Garca.

    2012-09-01

    Full Text Available Se presenta una paciente de sexo femenino, de 9 aos de edad, que acude a su mdico de familia y se le auscult un soplo al examen fsico y sintomatologa que se comportaba como una comunicacin interventricular. Luego de los estudios correspondientes, se permiti hacer el diagnstico de transposici [...] n corregida de grandes vasos. La paciente tena asociada una anomala de Ebstein, comunicacin interauricular, una comunicacin interventricular, y una persistencia del conducto arterioso, todo lo cual agravaba su cuadro clnico. Primero es intervenida quirrgicamente, y se cierra el ducto; de manera espontnea, cierra la comunicacin interauricular, y la anomala de Ebstein parchea la comunicacin interventricular. La nia desarrolla una insuficiencia cardiaca e hipertensin pulmonar, a consecuencia de las anomalas asociadas. El caso es de inters, ya que son pocos los publicados en la literatura internacional con esta cardiopata congnita asociada a otras anomalas estructurales del corazn, que modifican su historia natural. Abstract in english This paper presented a 9 years-old female patient, who went to the family's doctor and was physically examined to detect heart murmur and symptoms of ventricular septal defect. After the corresponding studies, the diagnosis was the corrected transposition of the great arteries. The patient also suff [...] ered Ebstein anomaly, atrial septal defect, ventricular septal defect and persistence of arteriose duct, all of which worsened her clinical picture. First, she was operated on and the duct was closed. Later the atrial septal defect closed spontaneously, and the Ebstein anomaly patched the ventricular septal defect. The girl developed heart failure and pulmonary hypertension, as a result of associated anomalies. The case is interesting since few cases like this one, associated with other structural heart anomalies that change its natural course, are presented in the international literature.

  14. Transposicin corregida de grandes vasos Corrected transposition of the great arteries

    Directory of Open Access Journals (Sweden)

    Jos Rafael Escalona Aguilera

    2012-09-01

    Full Text Available Se presenta una paciente de sexo femenino, de 9 aos de edad, que acude a su mdico de familia y se le auscult un soplo al examen fsico y sintomatologa que se comportaba como una comunicacin interventricular. Luego de los estudios correspondientes, se permiti hacer el diagnstico de transposicin corregida de grandes vasos. La paciente tena asociada una anomala de Ebstein, comunicacin interauricular, una comunicacin interventricular, y una persistencia del conducto arterioso, todo lo cual agravaba su cuadro clnico. Primero es intervenida quirrgicamente, y se cierra el ducto; de manera espontnea, cierra la comunicacin interauricular, y la anomala de Ebstein parchea la comunicacin interventricular. La nia desarrolla una insuficiencia cardiaca e hipertensin pulmonar, a consecuencia de las anomalas asociadas. El caso es de inters, ya que son pocos los publicados en la literatura internacional con esta cardiopata congnita asociada a otras anomalas estructurales del corazn, que modifican su historia natural.This paper presented a 9 years-old female patient, who went to the family's doctor and was physically examined to detect heart murmur and symptoms of ventricular septal defect. After the corresponding studies, the diagnosis was the corrected transposition of the great arteries. The patient also suffered Ebstein anomaly, atrial septal defect, ventricular septal defect and persistence of arteriose duct, all of which worsened her clinical picture. First, she was operated on and the duct was closed. Later the atrial septal defect closed spontaneously, and the Ebstein anomaly patched the ventricular septal defect. The girl developed heart failure and pulmonary hypertension, as a result of associated anomalies. The case is interesting since few cases like this one, associated with other structural heart anomalies that change its natural course, are presented in the international literature.

  15. Robotically Assisted Excision of Ovarian Vein for Intermittent Ureteral Obstruction

    OpenAIRE

    Badger, William J.; De, Elise J. B.; Kaufman, Ronald P.

    2008-01-01

    With the increasing popularity of robotically assisted procedures, new indications for robotically assisted surgery are being examined. Although open and laparoscopic surgical management of intermittent ureteral obstruction from ovarian vein syndrome has been reported previously, we report the first use of robotic assistance for ureterolysis and ovarian vein excision.

  16. Identification of left pulmonary vein ostia using centerline tracking

    Science.gov (United States)

    Rettmann, M. E.; Holmes, D. R., III; Packer, D. L.; Robb, R. A.

    2009-02-01

    With the increasing popularity of cardiac ablation therapy, studies of the procedural effects on left atrial and pulmonary vein morphology are becoming more important. Of particular interest is evaluation of atrial and pulmonary vein remodeling following ablation therapy using structural imaging. One challenge that arises when comparing pulmonary vein morphology across subjects is defining the ostial location. Strategies for defining this important anatomical location include volume renderings from multiple angles, or drawing lines in cross-sectional images. Drawbacks of these techniques include subjectivity between raters as well as limited use of three dimensional volumetric information. In this work, we describe a method for automatically identifying the pulmonary vein ostia from CT images using a single user selected seedpoint. The technique makes use of the full three dimensional volumetric information, by computing a centerline along each pulmonary vein and defining the ostium using oblique cross-sectional image planes along the curve axis. The ostium is defined as the point at which there is a spike in the oblique cross-sectional area. The method is demonstrated on each of the four pulmonary veins in four patient datasets, for a total of sixteen applications of the algorithm. The results are compared against manual delineations of the pulmonary vein ostia, with overall mean distances ranging from approximately 1.5 to 5.0 mm. In conclusion, although the pulmonary veins exhibit variable anatomic shapes and orientations across different patient datasets, our proposed automated method produces results comparable to manual delineation of the ostia.

  17. Why Do Some Pregnant Women Get Varicose Veins?

    Science.gov (United States)

    ... varicose veins). Varicose veins tend to be hereditary your mother or grandmother may have gotten them during pregnancy, too. So, unfortunately, there's not much you can do to prevent them. But here are ... cross your legs when sitting. Elevate your feet often. Wear ...

  18. Sciatica caused by a dilated epidural vein: MR findings

    International Nuclear Information System (INIS)

    We report the MR imaging findings in a 41-year-old woman presenting with sudden low back pain and sciatica. At surgery a dilated epidural vein was found compressing the nerve root. The MR findings may suggest the diagnosis. Magnetic resonance imaging of a dilated epidural vein or varix causing sciatica has not been reported until now. (orig.) (orig.)

  19. Saphenous Vein Graft Pseudoaneurysm Presenting as a Mediastinal Mass

    OpenAIRE

    Karwande, Shreekanth V.; Sharp, Sally D.

    1990-01-01

    Coronary vein graft aneurysms are quite rare, particularly when they present as a mediastinal mass. We report a saphenous vein graft pseudoaneurysm that presented as a mediastinal mass in a 45-year-old man. In addition to reviewing the relevant medical literature in English, we discuss diagnostic techniques and therapeutic options. (Texas Heart Institute Journal 1990;17:129-32)

  20. On the dragnosis of deep vein thrombosis

    International Nuclear Information System (INIS)

    Clinical and laboratory diagnostic methods were studied in 301 consecutive patients with suspected deep vein thrombosis (DVT). Unexpectedly, phlebography (the reference method) was found to cause DVT in estimated 48 % of patients without initial DVT. Using a new type of contrast medium, however, no thrombotic complications were found. - Neither clinical examination nor plethysmography were found to give reliable results. Using a modified technique for radioisotope detection, high sensitivity to DVT was found with the 125I-fibrinogen uptake test (within 2 days) and a newly developed 99Tcsup(m)-plasmin test (within one hour). Since both tests showed low specificity, they are reliable as screening tests to exclude DVT, but not as independent diagnostic methods. (author)

  1. Portal vein thrombosis in liver cirrhosis.

    Science.gov (United States)

    Kinjo, Nao; Kawanaka, Hirofumi; Akahoshi, Tomohiko; Matsumoto, Yoshihiro; Kamori, Masahiro; Nagao, Yoshihiro; Hashimoto, Naotaka; Uehara, Hideo; Tomikawa, Morimasa; Shirabe, Ken; Maehara, Yoshihiko

    2014-02-27

    Portal vein thrombosis (PVT) is considered to be a frequent complication of liver cirrhosis. However, unlike PVT in patients without cirrhosis, very few data are available on the natural history and management of PVT in cirrhosis, despite its association with potentially life-threatening conditions, such as gastroesophageal bleeding and acute intestinal ischemia. Moreover, no consensus regarding PVT in cirrhosis exists. Suggested causes of PVT in cirrhosis include reduced portal blood flow velocity, multiple congenital or acquired thrombophilic factors, inherited or acquired conditions, and derangement of liver architecture. However, the understanding of PVT in cirrhosis is incomplete. In addition, information on the management of PVT in cirrhosis is inadequate. The aims of this review are to: (1) assemble data on the physiopathological mechanism, clinical findings, diagnosis and management of PVT in cirrhosis; (2) describe the principal factors most frequently involved in PVT development; and (3) summarize the recent knowledge concerning diagnostic and therapeutic procedures. PMID:24575165

  2. Leiomyosarcoma of the great saphenous vein

    Directory of Open Access Journals (Sweden)

    Alexandre Campos Moraes Amato

    2015-06-01

    Full Text Available A 56-year-old male patient presented with a complaint of two painful, hard, palpable nodules in the right lower limb. A Doppler ultrasound scan revealed the presence of nodules, likely to be neoplastic. Computed angiography showed two solid hypervascular nodules in the right great saphenous vein, fed by branches of the posterior tibial artery. Embolization of the nodules using surgical cyanoacrylate was performed, followed by an excisional biopsy. Anatomical pathology and immunohistochemical analysis identified the nodule as a high-grade leiomyosarcoma, characterized by ten mitotic figures per ten high-power fields, necrosis and cell pleomorphism. Immunohistochemical analysis results were positive for caldesmon and desmin labeling. A second surgical procedure was performed to enlarge the free margins.

  3. Portal Vein Embolization: What Do We Know?

    Energy Technology Data Exchange (ETDEWEB)

    Denys, Alban, E-mail: Alban.Denys@chuv.ch [Centre Hospitalo Universitaire Vaudois, Department of Radiology and Interventional Radiology Unit (Switzerland); Prior, John [Centre Hospitalo Universitaire Vaudois, Department of Nuclear Medicine (Switzerland); Bize, Pierre; Duran, Rafael [Centre Hospitalo Universitaire Vaudois, Department of Radiology and Interventional Radiology Unit (Switzerland); Baere, Thierry De [Institut Gustave Roussy, Department of Interventional Radiology (France); Halkic, Nermin; Demartines, Nicolas [Centre Hospitalo Universitaire Vaudois, Department of Visceral Surgery (Switzerland)

    2012-10-15

    Portal vein embolization (PVE) has been developed to increase the size of the future remnant liver (FRL) left in place after major hepatectomy, thus reducing the risk of postoperative liver insufficiency. PVE consist in embolizing preoperatively portal branches of the segments that will be resected. Indication is based on preoperative measurements of the FRL by computed tomography and its ratio with either the theoretical liver volume or by direct measurement of the functional liver volume. After PVE, the volume and function of the FRL increases in 3 to 6 weeks, permitting extensive resections in patients otherwise contraindicated for liver resection. The PVE technique is variable from one center to another; however n-butyl-cyano-acrylate provides an interesting compromise between hypertrophy rate and procedure risk.

  4. Initial evaluation of endoscopic saphenous vein harvesting

    International Nuclear Information System (INIS)

    In this report, we present our initial experience of endoscopic saphenous vein harvesting (ESVH) using the Vasoview System. ESVH was performed in 72 patients between May 2006 and October 2007. The mean patient age was 736.7 years, and 54 (75%) were men. The success rate of ESVH was 98.6% (71/72). The mean harvest time was 3611 min. The mean number of side branches requiring repair was 1.191.21. Comparing the first 5 cases with the last 5 cases, the time for harvesting time and the number of repaired branches improved significantly. Wound complications occurred in 2 patients (2.7%) postoperatively. The intraoperative mean graft flow was 2513 ml/min. The early patency was 87% (47/54) as evaluated by postoperative angiography or CT. The intraoperative graft flow and early patency were satisfactory. ESVH is easy to adopt and has excellent cosmetic advantages. (author)

  5. Saphenous vein graft intervention: status report 2014.

    Science.gov (United States)

    Soverow, Jonathan; Lee, Michael S

    2014-12-01

    Given their frequent use as bypass conduits and high rates of degeneration, saphenous vein grafts (SVGs) will continue to require percutaneous coronary intervention. Due to their unique physiology, SVGs pose special challenges to the interventionalist. Preintervention evaluation of hemodynamic significance is hampered by limited data and uncertainty regarding the validity of fractional flow reserve. Intraprocedural complications, particularly distal embolization and no-reflow, are common but may be mitigated by various techniques. Despite advances in the field, SVG intervention is associated with worse outcomes - including increased rates of periprocedural myocardial infarction, restenosis, target vessel revascularization, non-target disease progression, and death - compared with native vessel intervention. This paper reviews the most recent data and techniques available to the interventionalist seeking to improve outcomes after SVG intervention. PMID:25480996

  6. Transposition of the European Directive (Euratom 97/43) in European countries: A survey and an example from France

    International Nuclear Information System (INIS)

    Full text: The European Directive Euratom 97/43, dedicated to the radioprotection of patients, must have been transposed in all EU countries. This directive has been based on two main principles, which are Justification and Optimization of medical procedures using ionizing radiation. Although this transposition in every European country has been a unique opportunity to improve quality of radiological services at a national level, the degree of sophistication in this transposition varies significantly between European countries. The European Association of Radiology conducted recently a survey on the results of this transposition in all European countries. The results of this survey will be presented. In France, the Directive was transposed by laws, decrees and ministerial orders. In fact, the radiological profession embraced the two principles of the Directive, establishing the basis of a full quality management policy in radiology. A great number of radiologists, nuclear medicine physicians, physicists, and radioprotectionists were involved in the transposition procedure through the professional associations, administrative institutions and scientific societies. The French Society of Radiology and the French Society of Biophysics and Nuclear Medicine in conjunction with the Direction Generale de Surete Nucleaire et de la Protection (DGSNR) started to work together on the Directive Transposition in 2001. To apply the principle of optimization, a specific working group was in charge to write the detailed description of all diagnostic procedures utilizing ionizing radiation. This group, made up of experts in all subspecialties of imaging and physicists, provided consensually optimal parameters and recommendations for patient radioprotection. The same group established reference doses on the basis of a national multicentric campaign of dose measurements, done on a few radiological examinations performed on standard patients (chest radiography, plain abdominal film, brain CT and chest CT). According to the transposition, an obligation has been established for all departments of radiology to send annually the results of 20 dose measurements from radiographic and CT examinations on standard patients to the DGSNR. This procedure is requested in order to update the national database permitting to establish yearly the national doses of reference. There is also now an obligation for radiologists to give information of dose delivered during the examination in their radiological report. To apply the principle of justification, another working group was in charge of establishing the guidelines for good clinical use of medical imaging (Guide du Bon Usage des Examens d'Imagerie Medicale). This document was established on the basis of the methodology defined by the National Agency for Accreditation and Evaluation in Health Care, recently named Haute Autorite en Sante, which labeled the document. The methodology, based on three subsequent steps, was conducted by a steering committee. Firstly, 14 expert groups were created for all subspecialties of radiology. They were in charge of writing 388 items reflecting the different clinical symptoms or suspected pathologic diagnoses, followed by the imaging technique, level of radiation dose, level of indication and level of proof. Secondly, this first document was submitted to larger groups of experts, including not only radiologists, but also clinicians. These multidisciplinary groups were in charge of amending and improving the first document. The third step involved circulation of this new version of the document to large reading groups composed of radiologists specifically chosen in order to reflect the various aspects of professional activities. These radiologists assessed the document using a scoring scale. In case of important disagreement on specific items, an additional cycle of writing, amending and reading procedures was done. The final document was sent to all national scientific societies representing all medical and surgical disciplines for final approval. Close to 700 professional

  7. Multiple vascular anomalies involving testicular, suprarenal arteries and lumbar veins

    Directory of Open Access Journals (Sweden)

    P Jyothsna

    2012-01-01

    Full Text Available Testicular arteries arise from the abdominal aorta and the inferior suprarenal artery from the renal artery. There are reports about variant origin and course of these arteries. Accessory testicular artery is also a common finding but its providing origin to inferior suprarenal artery is an important observation. During a routine dissection of abdomen of approximately 55-year-old male cadaver, unique vascular abnormality was observed. On the left side, a common arterial trunk originating from abdominal aorta immediately branched to give rise to superior testicular and inferior suprarenal arteries, the former after a short course hooked by the left suprarenal vein. In addition, the left suprarenal vein, second left lumbar vein, and left testicular vein joined to form a common trunk which drained into the left renal vein. A sound knowledge of vascular variations in relation to the kidney and suprarenal gland is important to surgeons dissecting the abdominal cavity.

  8. Aging techniques for deep vein thrombosis: a systematic review.

    Science.gov (United States)

    Dharmarajah, B; Sounderajah, V; Rowland, S P; Leen, E L S; Davies, A H

    2015-03-01

    Deep vein thrombosis is common with an incidence of 1 in 1000. Acute thrombus removal for extensive proximal deep vein thrombosis using catheter-directed techniques highlights the need for accurate assessment of thrombus age. This systematic review summarises experimental and clinical evidence of imaging techniques for aging deep vein thrombosis. Ultrasound elastography and magnetic resonance imaging were highlighted as the most studied imaging modalities. Elastography was shown to distinguish between acute and chronic clots, despite demonstrating difficulty in accurate aging of clots older than 10 days in rat models. Elastography is noted as a feasible adjunct to current first-line imaging for deep vein thrombosis using duplex ultrasonography. Combinations of magnetic resonance imaging techniques can identify acute, sub-acute and chronic thrombi using endogenous contrast agents and provide objective standardisation of the diagnostic process, with reduced onus upon operator dependency. Further validation is required of these novel imaging techniques prior to clinical implementation for deep vein thrombosis aging. PMID:24668998

  9. [An update on the treatment of central retinal vein thrombosis (retinal vein occlusion)].

    Science.gov (United States)

    Iord?nescu, C; Jurja, S

    2000-01-01

    The paper reviews the actual therapeutical means in a severe invalid eye disease. The treatment is not able to improve the retinal blood flow, being more effective on the main symptoms and complications. The isovolumetric hemodilution method as an up-to-date method in the treatment of central retinal vein occlusion, appears to bring better recuperation hopes, by a higher improvement of the local anatomical and hemodynamical factors. That is the reason why we shall expose it widely in our paper. Unfortunately, despite its complexity, the treatment of central retinal vein occlusion is not satisfactory from the point of view of the high number of patients that remain with a low visual acuity. The main goal of the therapy is the recovery of visual function, but a few aspects and especially the late presentation for ophthalmological examination, reduce the objective of treatment to prevent complications. PMID:11021101

  10. Leiomyosarcoma of inferior vena cava involving bilateral renal veins: Surgical challenges and reconstruction with upfront saphenous vein interposition graft for left renal vein outflow

    OpenAIRE

    Nayyar, Rishi; Panda, Sabyasachi; Saini, Ashish; Seth, Amlesh; Chaudhary, Shiv Kumar

    2010-01-01

    Leiomyosarcoma of inferior vena cava (IVC) involving bilateral renal veins presents a surgical challenge. Herein, we report the successful management of two such cases using restoration of left renal venous outflow by saphenous vein interposition graft as first step of surgery. Then radical resection of tumor and right kidney was done. IVC was lastly reconstructed using Gore-Tex graft. This report highlights the surgical challenges to ensure radical resection. Furthermore, the importance of r...

  11. Loss of function mutations in the rice chromomethylase OsCMT3a cause a burst of transposition.

    Science.gov (United States)

    Cheng, Chaoyang; Tarutani, Yoshiaki; Miyao, Akio; Ito, Tasuku; Yamazaki, Muneo; Sakai, Hiroaki; Fukai, Eigo; Hirochika, Hirohiko

    2015-09-01

    Methylation patterns of plants are unique as, in addition to the methylation at CG dinucleotides that occurs in mammals, methylation also occurs at non-CG sites. Genes are methylated at CG sites, but transposable elements (TEs) are methylated at both CG and non-CG sites. The role of non-CG methylation in transcriptional silencing of TEs is being extensively studied at this time, but only very rare transpositions have been reported when non-CG methylation machineries have been compromised. To understand the role of non-CG methylation in TE suppression and in plant development, we characterized rice mutants with changes in the chromomethylase gene, OsCMT3a. oscmt3a mutants exhibited a dramatic decrease in CHG methylation, changes in the expression of some genes and TEs, and pleiotropic developmental abnormalities. Genome resequencing identified eight TE families mobilized in oscmt3a during normal propagation. These TEs included tissue culture-activated copia retrotransposons Tos17 and Tos19 (Lullaby), a pericentromeric clustered high-copy-number non-autonomous gypsy retrotransposon Dasheng, two copia retrotransposons Osr4 and Osr13, a hAT-tip100 transposon DaiZ, a MITE transposon mPing, and a LINE element LINE1-6_OS. We confirmed the transposition of these TEs by polymerase chain reaction (PCR) and/or Southern blot analysis, and showed that transposition was dependent on the oscmt3a mutation. These results demonstrated that OsCMT3a-mediated non-CG DNA methylation plays a critical role in development and in the suppression of a wide spectrum of TEs. These in planta mobile TEs are important for studying the interaction between TEs and the host genome, and for rice functional genomics. PMID:26243209

  12. Preventing intimal thickening of vein grafts in vein artery bypass using STAT-3 siRNA

    OpenAIRE

    Sun Jiangbin; Zheng Jinhua; Ling Kaitelynne H; Zhao Keyan; Xie Zhongshang; Li Bo; Wang Tiance; Zhu Zhicheng; Patel Amit N; Min Weiping; Liu Kexiang; Zheng Xiufen

    2012-01-01

    Abstract Background Proliferation and migration of vascular smooth muscle cells (VSMCs) play a key role in neointimal formation which leads to restenosis of vein graft in venous bypass. STAT-3 is a transcription factor associated with cell proliferation. We hypothesized that silencing of STAT-3 by siRNA will inhibit proliferation of VSMCs and attenuate intimal thickening. Methods Rat VSMCs were isolated and cultured in vitro by applying tissue piece inoculation methods. VSMCs were transfected...

  13. Evaluation of endoscopic vein extraction on structural and functional viability of saphenous vein endothelium

    OpenAIRE

    Lu Xiu-Gui; Hussaini Bader E; Wolfe J Alan; Thatte Hemant S

    2011-01-01

    Abstract Objectives Endothelial injury during harvest influences graft patency post CABG. We have previously shown that endoscopic harvest causes structural and functional damage to the saphenous vein (SV) endothelium. However, causes of such injury may depend on the extraction technique. In order to assess this supposition, we evaluated the effect of VirtuoSaph endoscopic SV harvesting technique (VsEVH) on structural and functional viability of SV endothelium using multiphoton imaging, bioch...

  14. Application of magnetic resonance angiography in cerebral vein system

    International Nuclear Information System (INIS)

    Objective: To explore imaging technique of magnetic resonance in cerebral vein system and to evaluate the value of magnetic resonance veinography in displaying cerebral vein and diagnosing disease. Methods: The thrity-five persons experienced examinations of 2-dimension time of flight(2D TOF), 2-dimension phase contrast(2D PC) and then 3-dimension contrast-enhancement veinography(3D-CE MRV). The raw data treated with maxi intensitive projection. The images of veinography and disease changes were analysed as so to evaluate the dependability of the three methods in playing venous structions and disease changes. Results: All the diagnoses were proved by DSA or followed up. In 25 normal persons, 2D TOF and 2D PC of 10 persons showed abnormal in different type. But the 3D-CE MRV were normal.In 10 patients suffered from vein thrombosis,that all 2D-TOF MRV, 2D-PC MRV and 3D-CE MRV showed vein abnormality followed as: up radius sinus were no appeared in 2 cases, fined in 2 cases, local cannal of up radius sinus were narrowed in 1 cases. Right traversable sinus no appeared in 2 cases, fined in 2 cases, right sigmoid sinus no appeared in 1 cases. Additionally, in one patients, the left traversal sinus showed high signal as same as normal vein sinus in 2D TOF but of contrast medium was seen in 3D-CE-MRV. 3D-CE-MRV was dependable in describing structions of vein and displaying disease changes than 2D-TOF MRV and 2D-PC MRV. Conclusion: The techniques of vein imaging of 2D-TOF MRV and 2D-PC MRV combining with 3D-CE-MRV formed imaging method of cerebral vein system and it was dependable method for showing cerebral vein struction and diagnosing throb vein sinus thrombosis. (authors)

  15. Associations between flow in paratibial perforating veins and great saphenous vein patterns of reflux

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Engelhorn

    2015-06-01

    Full Text Available Perforating veins contribute to chronic venous valvular insufficiency (CVVI, subset of CVI of lower extremities (LE. We investigated the role of medial, proximal calf paratibial perforating veins (PTPV. Women with PTPV reflux, diameter ?3 mm, or tortuosity were selected among 2199 LE mappings. Duplex ultrasonography (US was performed standing. Reflux >0.5 s was abnormal. PTPV conditions were related to great saphenous vein (GSV patterns of reflux. US of 442 LE of 379 women were analyzed, all being Clinical-Etiology-Anatomy-Pathophysiology (CEAP classification C1, C2, and/or having intermittent, conditional swelling. Etiology was primary. Pathophysiology was reflux, not thrombosis or obstruction. Most PTPV drained (n=281, 64% of 442 or 13% of 2199, or were source (n=73, 17%/442, 3%/2199 of GSV reflux; 49 (11%/442, 2%/2199 had reflux not associated with GSV; 39 (9%/442, 2%/2199 did not have reflux. PTPV, when significative for CVVI, primarily drained-GSV reflux. PTPV was linked to reflux in 1 of 5 and was a major source of reflux in 1 of 20 legs. Detailed US of PTPV insured over 80% accuracy in CVVI mapping.

  16. Percutaneous closure of patent ductus arteriosus in interrupted inferior caval vein through femoral vein approach

    Science.gov (United States)

    Tefera, Endale; Bermudez-Caete, Ramon

    2014-01-01

    Percutaneous closure of the patent arterial duct in patients with interrupted inferior caval vein poses a technical challenge. A 12-year-old girl with a patent ductus arteriosus (PDA) and interrupted inferior caval vein is described in this report. The diagnosis of interrupted inferior caval vein and azygos continuation was made in the catheterization laboratory. A catheter was advanced and snared in the descending aorta. An exchange wire was advanced through the catheter and snared in the descending aorta. Then, an Amplatzer TorqVue 2 delivery sheath was advanced over the wire from the venous side and again snared in the descending aorta. An Amplatzer duct occluder (ADO) size 8/6 was advanced through the sheath while still holding the sheath with a snare. The device was opened. The sheath was then unsnared once the aortic disc was completely out. The sheath and the device were pulled back into the duct and the device was successfully implanted. The device was then released and it attained a stable position. An aortic angiogram was performed which showed complete occlusion. PMID:24701089

  17. Percutaneous closure of patent ductus arteriosus in interrupted inferior caval vein through femoral vein approach

    International Nuclear Information System (INIS)

    Percutaneous closure of the patent arterial duct in patients with interrupted inferior caval vein poses a technical challenge. A 12-year-old girl with a patent ductus arteriosus (PDA) and interrupted inferior caval vein is described in this report. The diagnosis of interrupted inferior caval vein and azygos continuation was made in the catheterization laboratory. A catheter was advanced and snared in the descending aorta. An exchange wire was advanced through the catheter and snared in the descending aorta. Then, an Amplatzer TorqVue 2 delivery sheath was advanced over the wire from the venous side and again snared in the descending aorta. An Amplatzer duct occluder (ADO) size 8/6 was advanced through the sheath while still holding the sheath with a snare. The device was opened. The sheath was then unsnared once the aortic disc was completely out. The sheath and the device were pulled back into the duct and the device was successfully implanted. The device was then released and it attained a stable position. An aortic angiogram was performed which showed complete occlusion

  18. Percutaneous closure of patent ductus arteriosus in interrupted inferior caval vein through femoral vein approach

    Directory of Open Access Journals (Sweden)

    Endale Tefera

    2014-01-01

    Full Text Available Percutaneous closure of the patent arterial duct in patients with interrupted inferior caval vein poses a technical challenge. A 12-year-old girl with a patent ductus arteriosus (PDA and interrupted inferior caval vein is described in this report. The diagnosis of interrupted inferior caval vein and azygos continuation was made in the catheterization laboratory. A catheter was advanced and snared in the descending aorta. An exchange wire was advanced through the catheter and snared in the descending aorta. Then, an Amplatzer TorqVue 2 delivery sheath was advanced over the wire from the venous side and again snared in the descending aorta. An Amplatzer duct occluder (ADO size 8/6 was advanced through the sheath while still holding the sheath with a snare. The device was opened. The sheath was then unsnared once the aortic disc was completely out. The sheath and the device were pulled back into the duct and the device was successfully implanted. The device was then released and it attained a stable position. An aortic angiogram was performed which showed complete occlusion.

  19. Non-cuffed dual lumen catheters in the external jugular veins versus other central veins for hemodialysis patients

    Directory of Open Access Journals (Sweden)

    Moini Majid

    2009-01-01

    Full Text Available To compare prospective between insertion of non-cuffed dual lumen catheter in the external jugular vein and other central veins for hemodialysis (HD, we studied 68 chronic dialysis patients randomly allocated into two groups: one with external jugular vein catheterization as access for HD and another with other central venous catheterization, internal jugular or subclavian vein. Our results showed there were no significant differences regarding successful cannulation, com-plications, total numbers of dialysis, development of pain and infection at the site of cannulation, patency rate of the catheters, and efficacy of hemodialysis between both groups. In addition, the patency of the catheter in the external jugular vein was not affected by previous cannulation of other central veins. In contrast, there was a significant correlation between numbers of attempts for cannulation in both groups and development of hematoma and infection, (p< 0.05. In conclusion, our results showed that the external jugular vein may be an alternative for other central veins for insertion of temporary non-cuffed hemodialysis catheter.

  20. Leaf hydraulic conductance varies with vein anatomy across Arabidopsis thaliana wild-type and leaf vein mutants.

    Science.gov (United States)

    Caringella, Marissa A; Bongers, Franca J; Sack, Lawren

    2015-12-01

    Leaf venation is diverse across plant species and has practical applications from paleobotany to modern agriculture. However, the impact of vein traits on plant performance has not yet been tested in a model system such as Arabidopsis thaliana. Previous studies analysed cotyledons of A.?thaliana vein mutants and identified visible differences in their vein systems from the wild type (WT). We measured leaf hydraulic conductance (Kleaf ), vein traits, and xylem and mesophyll anatomy for A.?thaliana?WT (Col-0) and four vein mutants (dot3-111 and dot3-134, and cvp1-3 and cvp2-1). Mutant true leaves did not possess the qualitative venation anomalies previously shown in the cotyledons, but varied quantitatively in vein traits and leaf anatomy across genotypes. The WT had significantly higher mean Kleaf . Across all genotypes, there was a strong correlation of Kleaf with traits related to hydraulic conductance across the bundle sheath, as influenced by the number and radial diameter of bundle sheath cells and vein length per area. These findings support the hypothesis that vein traits influence Kleaf , indicating the usefulness of this mutant system for testing theory that was primarily established comparatively across species, and supports a strong role for the bundle sheath in influencing Kleaf . PMID:26047314

  1. In vitro transposition of ISY100, a bacterial insertion sequence belonging to the Tc1/mariner family

    OpenAIRE

    Feng, Xiaofeng; Colloms, Sean D.

    2007-01-01

    The Synechocystis sp. PCC6803 insertion sequence ISY100 (ISTcSa) belongs to the Tc1/mariner/IS630 family of transposable elements. ISY100 transposase was purified and shown to promote transposition in vitro. Transposase binds specifically to ISY100 terminal inverted repeat sequences via an N-terminal DNA-binding domain containing two helixturnhelix motifs. Transposase is the only protein required for excision and integration of ISY100. Transposase made double-strand breaks on a supercoiled ...

  2. A case report of congenitally corrected transposition of great arteries: Morphologic and functional evaluation with cardiac CT

    International Nuclear Information System (INIS)

    Congenitally corrected transposition of the great arteries (ccTGA) is a rare congenital anomaly characterized by atrioventricular and ventriculoarterial discordance. We report a case of new-onset heart failure in a 69-year-old female in whom cardiac CT demonstrated ccTGA without the associated cardiovascular anomalies. In this case, cardiac CT was useful for elucidating the rare and unexpected congenital etiologies of abrupt-onset heart failure in an old patient by the simultaneous evaluation of cardiac morphology and function as a single study (inserted).

  3. Aneurysmal dilatation of persistent vitelline vein with thrombus in a neonate

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Kun Woo; Sung, Deuk Jae; Park, Beom Jin; Kim, Min Ju; Cho, Sung Bum [Korea University College of Medicine, Department of Radiology, Anam Hospital, Seoul (Korea, Republic of)

    2014-07-15

    The paired vitelline veins selectively involute and form a part of the portal vein during embryonic development. The presence of a persistent vitelline vein segment after birth is very rare and can be confused with anomalies of the portal and umbilical veins. We present sonographic, CT and MRI findings of aneurysmal dilatation of a persistent vitelline vein with thrombus in a neonate; this case was first misdiagnosed as an umbilical vein varix by prenatal US. MRI was used to identify the persistent vitelline vein segment and the remnant umbilical vein segment. (orig.)

  4. Antibodies to cardiolipin may increase the risk of failure of peripheral vein bypasses

    DEFF Research Database (Denmark)

    Nielsen, Tina G; Nordestgaard, B G; von Jessen, F; Andreasen, Jan Jesper; Wiik, A; Heegaard, N H; Schroeder, T V

    1997-01-01

    To assess the association between antibodies to cardiolipin and infrainguinal vein graft patency.......To assess the association between antibodies to cardiolipin and infrainguinal vein graft patency....

  5. Veias linfonodais: uma causa pouco conhecida de varizes / Lymph node veins: a little-known cause of varicose veins

    Scientific Electronic Library Online (English)

    Andr Paciello, Romualdo; Roberto de Moraes, Bastos; Alessandro, Cappucci; Mathias, Fatio; Andra, Tsunoda; Pollyanna, Campos; Alberto Lobo, Machado; Eduardo Hideki, Tokura.

    2008-12-01

    Full Text Available As veias linfonodais fazem parte de uma rede venosa no tringulo de Scarpa, que liga em vrios pontos o sistema venoso superficial s veias profundas, e podem tanto ser causa de incompetncia do sistema venoso superficial quanto estar envolvidas na recorrncia ps-safenectomia. Na rotina diria dos [...] exames de Doppler venoso de membros inferiores, temos notado de maneira cada vez mais freqente a associao das veias linfonodais com varizes primrias e recorrentes. A adequada caracterizao dessas veias pode ajudar na compreenso do mecanismo fisiopatolgico do aparecimento das varizes e permitir um controle e tratamento mais dirigidos. Este artigo lana luz sobre os aspectos anatmicos e fisiolgicos das veias linfonodais, objetivando chamar a ateno dos profissionais envolvidos no diagnstico de doenas venosas dos membros inferiores para uma causa pouco difundida de varizes. Abstract in english Lymph node veins are part of a venous network in Scarpa"s triangle, communicating in many points the superficial venous system and the deep veins, and may either be the cause of incompetence of the superficial venous system, or be involved in recurrent varicose veins after saphenous vein stripping. [...] In the daily routine of venous Doppler examination of the lower extremities, an increasingly frequent association of lymph node veins with primary and/or recurrent varicose veins has been noticed. Appropriate characterization of these veins may help to understand the pathophysiological mechanism of varicose vein appearance and provide a more focused approach to follow-up and treatment. This article sheds some light on the anatomical and physiological aspects of lymph node veins, drawing the attention of professionals involved in the diagnosis of venous disorders of the lower extremities to a little-known cause of varicose veins.

  6. Leaf Vein Extraction Based on Gray-scale Morphology

    Directory of Open Access Journals (Sweden)

    Xiaodong Zheng

    2010-12-01

    Full Text Available Leaf features play an important role in plant species identification and plant taxonomy. The type of the leaf vein is an important morphological feature of the leaf in botany. Leaf vein should be extracted from the leaf in the image before discriminating its type. In this paper a new method of leaf vein extraction has been proposed based on gray-scale morphology. Firstly, the color image of the plant leaf is transformed to the gray image according to the hue and intensity information. Secondly, the gray-scale morphology processing is applied to the image to eliminate the color overlap in the whole leaf vein and the whole background. Thirdly, the linear intensity adjustment is adopted to enlarge the gray value difference between the leaf vein and its background. Fourthly, calculate a threshold with OSTU method to segment the leaf vein from its background. Finally, the leaf vein can be got after some processing on details. Experiments have been conducted with several images. The results show the effectiveness of the method. The idea of the method is also applicable to other linear objects extraction.

  7. Anatomical Variation in the Origin of Portal Vein: Case Report.

    Directory of Open Access Journals (Sweden)

    Al-Awad, Adel

    2012-12-01

    Full Text Available The portal vein (PV is a large vessel which arises from the union of the lienic vein with the superior mesenteric vein. Their variations are rare, however it must be remembered during pancreaticoduodenal surgeries. This paper aims to describe the anatomical variation of the PV origin during a cadaveric dissection.33 dissections of cadavers of both sexes were performed, 28 of them were male and 5 female, all over 18 years old, both fresh and fixed in 10% formalin. It was performed an evisceration of all of them, with the purpose of performing the dissection of the pedicles of the various organs of the cadaver.Of the 33 cadavers, 11 were fresh and 22 were formalin-fixed, during dissection of a block of fresh viscera from the supramesocolic level from a male, specifically at the lower edge of the body of the pancreas, there was an anatomical variation of PV origin. This variation was in absence of superior mesenteric vein, replaced by the gastrocolic venous trunk which joins with the venous trunk formed by the junction of the ileocolic and splenic veins. The inferior mesenteric vein joins with splenic vein.The knowledge of anatomical variations of the PV is fundamental in the clinical-surgical field to reduce potential intraoperative injuries (bleeding and postoperative complications in pancreatic and colon surgery.

  8. Antithrombin III injection via the portal vein suppresses liver damage

    Directory of Open Access Journals (Sweden)

    Masayuki Miyazaki

    2012-01-01

    Full Text Available AIM: To investigate the effects of antithrombin III (AT III injection via the portal vein in acute liver failure. METHODS: Thirty rats were intraperitoneally challenged with lipopolysaccharide (LPS and D-galactosamine (GalN and divided into three groups: a control group; a group injected with AT III via the tail vein; and a group injected with AT III via the portal vein. AT III (50 U/kg body weight was administrated 1 h after challenge with LPS and GalN. Serum levels of inflammatory cytokines and fibrin degradation products, hepatic fibrin deposition, and hepatic mRNA expression of hypoxia-related genes were analyzed. RESULTS: Serum levels of alanine aminotransferase, tumor necrosis factor-? and interleukin-6 decreased significantly following portal vein AT III injection compared with tail vein injection, and control rats. Portal vein AT III injection reduced liver cell destruction and decreased hepatic fibrin deposition. This treatment also significantly reduced hepatic mRNA expression of lactate dehydrogenase and heme oxygenase-1. CONCLUSION: A clinically acceptable dose of AT III injection into the portal vein suppressed liver damage, probably through its enhanced anticoagulant and anti-inflammatory activities.

  9. Applied anatomic study of testicular veins in adult cadavers and in human fetuses

    Scientific Electronic Library Online (English)

    Luciano A., Favorito; Waldemar S., Costa; Francisco J.B., Sampaio.

    2007-04-01

    Full Text Available OBJECTIVES: Analyze the anatomic variations of the testicular veins in human cadavers and fetuses. MATERIALS AND METHODS: One hundred male adult cadavers and 24 fetuses were studied. Four anatomic aspects were considered: 1) Number of testicular veins, 2) The local of vein termination, 3) Type and n [...] umber of collaterals present and 4) Testicular vein termination angle. RESULTS: Cadavers - Right side - One testicular vein occurred in 85% and 2 veins in 5% of the cases. There were communicating veins with the colon in 21% of the cases. Left side - One testicular vein occurred in 82%, two veins in 15%, three veins in 2% and four veins in 1% of the cases. There were communicating veins with the colon in 31% of the cases. Fetuses - Right side -One testicular vein occurred in all cases. This vein drained to the vena cava in 83.3% of the cases, to the junction of the vena cava with the renal vein in 12.5% and to the renal vein in 4.2%. There were communicating veins with the colon in 25% of the cases. Left side - One testicular vein occurred in 66.6% of the cases, and 2 veins in occurred 33.3%. Communicating veins with the colon were found in 41.6% of the cases. CONCLUSION: The testicular vein presents numeric variations and also variations in its local of termination. In approximately 30% of the cases, there are collaterals that communicate the testicular vein with retroperitoneal veins. These anatomic findings can help understanding the origin of varicocele and its recurrence after surgical interventions.

  10. Applied anatomic study of testicular veins in adult cadavers and in human fetuses

    Directory of Open Access Journals (Sweden)

    Luciano A. Favorito

    2007-04-01

    Full Text Available OBJECTIVES: Analyze the anatomic variations of the testicular veins in human cadavers and fetuses. MATERIALS AND METHODS: One hundred male adult cadavers and 24 fetuses were studied. Four anatomic aspects were considered: 1 Number of testicular veins, 2 The local of vein termination, 3 Type and number of collaterals present and 4 Testicular vein termination angle. RESULTS: Cadavers - Right side - One testicular vein occurred in 85% and 2 veins in 5% of the cases. There were communicating veins with the colon in 21% of the cases. Left side - One testicular vein occurred in 82%, two veins in 15%, three veins in 2% and four veins in 1% of the cases. There were communicating veins with the colon in 31% of the cases. Fetuses - Right side -One testicular vein occurred in all cases. This vein drained to the vena cava in 83.3% of the cases, to the junction of the vena cava with the renal vein in 12.5% and to the renal vein in 4.2%. There were communicating veins with the colon in 25% of the cases. Left side - One testicular vein occurred in 66.6% of the cases, and 2 veins in occurred 33.3%. Communicating veins with the colon were found in 41.6% of the cases. CONCLUSION: The testicular vein presents numeric variations and also variations in its local of termination. In approximately 30% of the cases, there are collaterals that communicate the testicular vein with retroperitoneal veins. These anatomic findings can help understanding the origin of varicocele and its recurrence after surgical interventions.

  11. Human saphenous vein organ culture under controlled hemodynamic conditions

    Scientific Electronic Library Online (English)

    Ayumi Aurea, Miyakawa; Luis Alberto Oliveira, Dallan; Silvia, Lacchini; Thaiz Ferraz, Borin; Jose Eduardo, Krieger.

    Full Text Available INTRODUCTION: Saphenous vein grafting is still widely used to revascularize ischemic myocardium. The effectiveness of this procedure is limited by neointima formation and accelerated atherosclerosis, which frequently leads to graft occlusion. A better understanding of this process is important to cl [...] arify the mechanisms of vein graft disease and to aid in the formulation of strategies for prevention and/or therapeutics. OBJECTIVE: To develop an ex vivo flow system that allows for controlled hemodynamics in order to mimic arterial and venous conditions. METHODS: Human saphenous veins were cultured either under venous (flow: 5 ml/min) or arterial hemodynamic conditions (flow: 50 ml/min, pressure: 80 mmHg) for 1-, 2- and 4-day periods. Cell viability, cell density and apoptosis were compared before and after these intervals using MTT, Hoeschst 33258 stain, and TUNEL assays, respectively. RESULTS: Fresh excised tissue segments were well preserved prior to the study. Hoechst 33258 and MTT stains showed progressive losses in cell density and cell viability in veins cultured under arterial hemodynamic conditions from 1 to 4 days, while no alterations were observed in veins cultured under venous conditions. Although the cell density from 1-day cultured veins under arterial conditions was similar to that of freshly excised veins, the TUNEL assay indicated that most of these cells were undergoing apoptosis. CONCLUSION: The results observed resemble the events taking place during early in vivo arterial-vein grafting and provide evidence that an ex vivo perfusion system may be useful for the identification of new therapeutic targets that ameliorate vein graft remodeling and increase graft patency over time.

  12. Transposition of the basic safety standards. Potential impact on French laws and regulations

    Energy Technology Data Exchange (ETDEWEB)

    Godet, J.L.; Perrin, M.M.; Saad, N.; Bardelay, C. [Autorite de Surete Nucleaire (ASN), Paris (France)

    2013-07-01

    The new proposal for a Council Directive laying down basic safety standards for protection against the dangers arising from exposure to ionising radiation is about to be adopted. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive within 4 years after adoption of the final text. As far as France is concerned, these evolutions will mainly impact the labour code (for occupational issues) and the public health code for both legal and regulatory requirements. The most significant improvements of the current version of the project are the introduction of graded approach to regulatory control and the enhancement of requirements for protection against natural radiation sources (in particular exposure to radon and naturally occurring radioactive material). This project also aims at achieving a better harmonisation between Member States for topics such as the organization of radiation protection for workers, the justification of medical devices and non-medical imaging exposure situations. ASN has already identified major issues for the transposition of the Directive concerning both French laws and regulations. Main topics should concern the impact of ICRP terminology (planned exposure situation, existing exposure situation versus lasting exposure situation, reference level versus maximum activity level for exposure to radon..) and the extension of both justification and optimisation principles to new activities involving natural radiation sources, such as industries processing naturally occurring radioactive material. Furthermore, France will have to decide whether it will adjust some positions about the prohibition of nonmedical imaging exposures and the release of materials from regulatory control according to generic values. Indeed, the project mentions the possibility to introduce derogations to those major principles. Finally, and according to the graded approach, the project introduces a new step in the regulatory control (notification): France will have to work on a possible adaptation of its national legislation. In addition to those main changes, French laws will also probably need to be adjusted in order to comply with the introduction of the national action plan for the exposure to radon, the concept of longterm human health protection, the new recognition system for medical physics experts and the requirements about preparedness and response to emergency exposure situations. (orig.)

  13. Clinical features and surgical outcomes of complete transposition of the great arteries

    Directory of Open Access Journals (Sweden)

    Suk Jin Hong

    2012-10-01

    Full Text Available &lt;B&gt;Purpose:&lt;/B&gt; This single-center study aimed to assess the clinical features and surgical approaches and outcomes of complete transposition of the great arteries (TGA. &lt;B&gt;Methods:&lt;/B&gt; TGA patients who had undergone surgical correction at the Kyungpook National University Hospital from January 2000 to December 2010, were retrospectively evaluated for patient characteristics, clinical manifestation, preoperative management, intraoperative findings, postoperative progress, and follow-up status. &lt;B&gt;Results:&lt;/B&gt; Twenty-eight patients (17 boys and 11 girls, mean age= 10.6±21.5 days were included and were categorized as follows: group I, TGA with intact ventricular septum (n=13; group II, TGA with ventricular septal defect (VSD, n=12; and group III, TGA/VSD with pulmonary stenosis (n=3. Group I underwent the most intensive preoperative management (balloon atrial septostomy and prostaglandin E1 medication. Group II showed the highest incidence of heart failure (P&lt;0.05. Usual and unusual coronary anatomy patterns were observed in 20 (71% and 8 patients, respectively. Arterial and half-turned truncal switch operations were performed in 25 and 3 patients (Group III, respectively. Postoperative complications included cardiac arrhythmias (8 patients, central nervous system complications (3 patients, acute renal failure (1 patient, infections (3 patients, and cardiac tamponade (1 patient, and no statistically significant difference was observed between the groups. Group II showed the mildest aortic regurgitation on follow-up echocardiograms (P&lt;0.05. One patient underwent reoperation, and 1 died. The overall mortality rate was 4%. &lt;B&gt;Conclusion:&lt;/B&gt; Our study showed favorable results in all the groups and no significant difference in postoperative complication, reoperation, and mortality among the groups. However, our results were inadequate to evaluate the risk factors for reoperation and mortality owing to the small number of patients and short follow-up duration.

  14. Transposition of the basic safety standards. Potential impact on French laws and regulations

    International Nuclear Information System (INIS)

    The new proposal for a Council Directive laying down basic safety standards for protection against the dangers arising from exposure to ionising radiation is about to be adopted. Member States shall bring into force the laws, regulations and administrative provisions necessary to comply with this Directive within 4 years after adoption of the final text. As far as France is concerned, these evolutions will mainly impact the labour code (for occupational issues) and the public health code for both legal and regulatory requirements. The most significant improvements of the current version of the project are the introduction of graded approach to regulatory control and the enhancement of requirements for protection against natural radiation sources (in particular exposure to radon and naturally occurring radioactive material). This project also aims at achieving a better harmonisation between Member States for topics such as the organization of radiation protection for workers, the justification of medical devices and non-medical imaging exposure situations. ASN has already identified major issues for the transposition of the Directive concerning both French laws and regulations. Main topics should concern the impact of ICRP terminology (planned exposure situation, existing exposure situation versus lasting exposure situation, reference level versus maximum activity level for exposure to radon..) and the extension of both justification and optimisation principles to new activities involving natural radiation sources, such as industries processing naturally occurring radioactive material. Furthermore, France will have to decide whether it will adjust some positions about the prohibition of nonmedical imaging exposures and the release of materials from regulatory control according to generic values. Indeed, the project mentions the possibility to introduce derogations to those major principles. Finally, and according to the graded approach, the project introduces a new step in the regulatory control (notification): France will have to work on a possible adaptation of its national legislation. In addition to those main changes, French laws will also probably need to be adjusted in order to comply with the introduction of the national action plan for the exposure to radon, the concept of longterm human health protection, the new recognition system for medical physics experts and the requirements about preparedness and response to emergency exposure situations. (orig.)

  15. Potential uptake of Escherichia coli O157:H7 and Listeria monocytogenes from growth substrate into leaves of salad plants and basil grown in soil irrigated with contaminated water.

    Science.gov (United States)

    Chitarra, Walter; Decastelli, Lucia; Garibaldi, Angelo; Gullino, Maria Lodovica

    2014-10-17

    Outbreaks of foodborne illness, resulting from the consumption of fresh produce contaminated with human pathogens, are increasing. Potential uptake and persistence of human pathogens within edible parts of consumed fresh vegetables become an important issue in food safety. This study was conducted to assess the potential uptake and internalization of Escherichia coli O157:H7 and Listeria monocytogenes from an autoclaved substrate into edible parts of basil and baby salad plants (lettuce, cultivated rocket, wild rocket and corn salad) from 20 to 60-80days after inoculation, when plants are ready to be harvested and commercialized. Plants were grown in mesocosms under different temperature conditions (24C and 30C) and the growing substrate was inoculated using contaminated irrigation water (7logCFU/mL). E. coli O157:H7 could be internalized in the leaves of the tested leafy vegetables through the roots and persist up to the harvesting time with negligible differences between 24C and 30C. Significant decreases in pathogen titers were observed over time in the growing substrate on which the plants grew, until the last sampling time. In contrast, L. monocytogenes internalized and persisted only in lettuce mesocosms at 24C. Neither pathogen was observed in basil leaves. Similarly, in basil growing substrates, enteric bacteria were undetectable at the end of the experiments, suggesting that basil plants may produce and release antimicrobial compounds active against both bacteria in root exudates. These results suggest that enteric bacteria are able to persist within baby salad leaves up to market representing a risk for consumer's health. PMID:25150671

  16. Transposition of Alchornea castaneifolia (Willd. A. Juss. Seedlings from natural regeneration as a strategy for saplings production in nursery

    Directory of Open Access Journals (Sweden)

    Sheilly Raquelly Prado de Paula

    2013-06-01

    Full Text Available Alchornea castaneifolia (Willd. A. Juss. (Urana is a native species with potential for restoration of riparian vegetation and urban forestry. Given the difficulty of its propagation and the lack of knowledge about their behavior in nursery, this study aimed to evaluate the transposition of Alchornea castaneifolia from natural regeneration as a strategy for saplings production in nursery. The collecting took place in Porto Acre – AC, and selected 120 seedlings, which were divided into three height classes (15 cm and cultivated in four substrates (soil, sand, wasting açaí+soil, Plantmax in a completely randomized design in a 3x4 factorial design. We investigated the survival of seedlings and the growth in sand substrate to the characteristics height (H and collar diameter (DC, the relationship H/DC, dry mass of shoots, roots and total between the three height classes of the seedlings. The highest percentage of Alchornea castaneifolia seedlings survival was observed in the sand substrate (67%, followed by the wasting açaí+soil substrate (43%. Seedlings that showed greater growth in height, collar diameter and dry mass production were contained in the class above 15 cm in sand substrate. However, the 10-15 cm class of height presented 100% survival of seedlings in sand substrate and also provided high growth. It is therefore recommended the transposition of seedling in the 10-15 cm class using sand substrate for the propagation of Alchornea castaneifolia in nursery.

  17. Latero-distal transposition of the tibial crest in cases of medial patellar luxation with patella alta.

    Science.gov (United States)

    Segal, U; Or, M; Shani, J

    2012-01-01

    Medial patellar luxation is defined as medial displacement of the patella from the trochlear groove. In dogs, medial luxations account for 75% of all patellar luxation cases, and are frequently associated with patella alta. Common surgical treatments for medial luxation are trochleoplasty and lateral transposition of the crest to drive the patella into the correct anatomical alignment. Postoperative complications for this procedure are estimated to be between 18-29% of cases, with up to 48% of complications involving reluxation. It was previously hypothesized that in cases of medial luxation involving patella alta, the addition of a distal component to the lateral tibial crest transposition will result in repositioning of the patella into its proper position in the trochlear groove, thus reducing the recurrence of luxation. We performed this modified procedure on 14 dogs (17 limbs) that were suffering from medial luxation combined with patella alta, and our results led to favourable clinical outcomes. This modified surgical procedure places the patella into a more normal proximo-distal anatomical position, is simple to perform, and may become common practice for surgical treatment of medial patellar luxation with an alta component. PMID:22535480

  18. Retrospective risk factor assessment for complication following tibial tuberosity transposition in 137 canine stifles with medial patellar luxation.

    Science.gov (United States)

    Stanke, Natasha J; Stephenson, Nicole; Hayashi, Kei

    2014-04-01

    This study identified risk factors for complication following tibial tuberosity transposition by retrospective examination of cases that used various surgical techniques. Records and radiographs of 113 dogs with 137 stifles undergoing tibial tuberosity transposition for medial patellar luxation were reviewed. Patient-specific factors, surgical factors, and complication information were recorded. Owners were contacted as necessary to attain a minimum of 30 days follow-up. Of 137 stifles, 59 (43%) had complications, with 24 (18%) identified as major complications. Factors significantly associated with reduced risk of complication included increased age [odds ratio (OR) 0.8] and concurrent cranial cruciate ligament rupture (OR 0.3). Factors significantly associated with increased risk of complication included large breed compared to toy breed (OR 5.5), increased weight (OR 1.3), and use of a screw for tibial tuberosity fixation (OR infinity). While significant, these associations do not imply causality and prospective study is necessary to determine the ideal fixation method for individual patients. PMID:24688134

  19. Optimization of the representativeness and transposition approach, for the neutronic design of experimental programs in critical mock-up

    International Nuclear Information System (INIS)

    The work performed during this thesis focused on uncertainty propagation (nuclear data, technological uncertainties, calculation biases,...) on integral parameters, and the development of a novel approach enabling to reduce this uncertainty a priori directly from the design phase of a new experimental program. This approach is based on a multi-parameter multi-criteria extension of representativeness and transposition theories. The first part of this PhD work covers an optimization study of sensitivity and uncertainty calculation schemes to different modeling scales (cell, assembly and whole core) for LWRs and FBRs. A degraded scheme, based on standard and generalized perturbation theories, has been validated for the calculation of uncertainty propagation to various integral quantities of interest. It demonstrated the good a posteriori representativeness of the EPICURE experiment for the validation of mixed UOX-MOX loadings, as the importance of some nuclear data in the power tilt phenomenon in large LWR cores. The second part of this work was devoted to methods and tools development for the optimized design of experimental programs in ZPRs. Those methods are based on multi-parameters representativeness using simultaneously various quantities of interest. Finally, an original study has been conducted on the rigorous estimation of correlations between experimental programs in the transposition process. The coupling of experimental correlations and multi-parametric representativeness approach enables to efficiently design new programs, able to answer additional qualification requirements on calculation tools. (author)

  20. Radionuclide measurement of right ventricular function in atrial septal defect, ventricular septal defect and complete transposition of the great arteries

    International Nuclear Information System (INIS)

    Right ventricular (RV) function was assessed in 80 patients with congenital heart disease by first-pass and gated equilibrium radionuclide angiography. In 30 patients with a ventricular septal defect (VSD) the mean RV ejection fraction (+/- standard deviation) was 64 +/- 7%. In 30 patients with a secundum atrial septal defect it was 61 +/- 9% and in 20 patients with surgically corrected complete transposition of the great arteries it was 49 +/- 13%. These values are in close agreement with values established with cineangiography for similar groups of patients. The mean ejection fraction in the group with transposition of the great arteries was significantly less than in the group with VSD (p less than 0.001). Phase analysis of the equilibrium studies showed that there was delayed RV contraction in many patients in the absence of conduction abnormalities. This delay was significantly greater in patients with atrial septal defect than in those with VSD (p less than 0.05). There was a strong correlation between size of left-to-right shunt and phase delay in patients with VSD (r = -0.72). Thus, first-pass gated radionuclide angiography provides a valid measurement of RV ejection fraction, and delayed RV contraction on phase analysis may be a sensitive index of early RV dysfunction

  1. Infraorbital nerve transpositioning into orbital floor: a modified technique to minimize nerve injury following zygomaticomaxillary complex fractures

    Science.gov (United States)

    Kotrashetti, Sharadindu Mahadevappa; Kale, Tejraj Pundalik; Bhandage, Supriya

    2015-01-01

    Objectives Transpositioning of the inferior alveolar nerve to prevent injury in lower jaw has been advocated for orthognathic, pre-prosthetic and for implant placement procedures. However, the concept of infra-orbital nerve repositioning in cases of mid-face fractures remains unexplored. The infraorbital nerve may be involved in trauma to the zygomatic complex which often results in sensory disturbance of the area innervated by it. Ten patients with infraorbital nerve entrapment were treated in similar way at our maxillofacial surgery centre. Materials and Methods In this article we are reporting three cases of zygomatico-maxillary complex fracture in which intra-operative repositioning of infra-orbital nerve into the orbital floor was done. This was done to release the nerve from fractured segments and to reduce the postoperative neural complications, to gain better access to fracture site and ease in plate fixation. This procedure also decompresses the nerve which releases it off the soft tissue entrapment caused due to trauma and the organized clot at the fractured site. Results There was no evidence of sensory disturbance during their three month follow-up in any of the patient. Conclusion Infraorbital nerve transposition is very effective in preventing paresthesia in patients which fracture line involving the infraorbital nerve. PMID:25922818

  2. Nature of unstable insertional mutations and reversions at the cut locus of Drosophila melanogaster: Molecular mechanism for transpositional memory

    International Nuclear Information System (INIS)

    A segment of the cut locus containing an mdg4 insertion as a result of ctMR and ctMRp10 mutations was cloned. Clones were obtained for the phenotypically different ctMR2 and ctMRpN10 mutants and for stable and unstable revertants. All mutations studied are associated with mdg4 insertion at an identical nucleotide sequence of the cut locus, the same site at which mdg4 is inserted at the ct6 allele. The ctMRpN line differs from ctMR2 in that the mobile element jockey (3 kbp) is inserted in mdg4. Jockey is represented by about 1,000 copies per genome; it is homogeneous and lacks long terminal repeats (LTRs). In stable ct+ reversions, mdg4 is completely excised. In unstable ct+ reversions, in which there is a high degree of reverse directed transposition of mdg4 to the cut locus, an LTR of mdg4 is preserved at the site of the mutation. It is a sequence along which new copies of mdg4 or jockey-containing mdg4 are inserted into the genome. The authors discuss a molecular mechanism for transpositional memory involving homologous recombination of the remnant LTR and circular extrachromosomal copies of mdg4

  3. New approaches for the treatment of varicose veins.

    Science.gov (United States)

    Teruya, Theodore H; Ballard, Jeffrey L

    2004-10-01

    New, minimally invasive techniques for the treatment of varicose veins including radiofrequency ablation (RFA), endovenous laser therapy (EVLT), and transilluminated power phlebectomy (TIPP) represent effective and possibly superior alternatives to traditional saphenous vein stripping and stab avulsion of varicose veins. Further experience with these procedures will help to determine which ones will become the method of choice for treating this complex disease process. Some of these new techniques may not prove to be effective in the hands of all treating specialists. However,it is very likely that some of these techniques, such as foam sclerotherapy and RFA, will replace the procedures that we currently use today. PMID:15364562

  4. Roentgenosemiotics of the syndrome of the right ovarian vein

    International Nuclear Information System (INIS)

    X-ray signs of the syndrome of the right ovarian vein were based on the examination of 26 women. Excretory urograms revealed ureteral filling defect (linear, oblique and with even parallel edges) at the level of L2-L4 and the terminal line above which ureteral dilation was seen. The largest amount of information in the syndrome of the right ovarian vein could be obtained during venovariography from the right side in combination with excretory urography. An acute angle of enetering of the right ovarian vein in the inferior vena cava mae selective venovariography from the right side

  5. Dynamic MRI of hepatocellular carcinoma with portal vein tumor thrombus

    International Nuclear Information System (INIS)

    Dynamic MRI with injection of Gd-DTPA was performed in 7 patients with hepatocellular carcinoma associated with portal vein tumor thrombus. A portal vein tumor thrombus was clearly visualized as a low intense structure. The segment supplied with this portal vein shows high intensity, probably due to the decrease in portal blood flow and compensated arterial blood flow. A tumor itself, located in this segment, was shown as a low intense area. Thus dynamic MRI is a useful method for differentiating the tumor from the surrounding nontumorous tissue with decrease in portal flow. (author)

  6. Consensus for the Treatment of Varicose Vein with Radiofrequency Ablation

    OpenAIRE

    JOH, JIN HYUN; Kim, Woo-Shik; Jung, In Mok; Park, Ki-Hyuk; Lee, Taeseung; Kang, Jin Mo; . .

    2014-01-01

    The objective of this paper is to introduce the schematic protocol of radiofrequency (RF) ablation for the treatment of varicose veins. Indication: anatomic or pathophysiologic indication includes venous diameter within 2–20 mm, reflux time ≥0.5 seconds and distance from the skin ≥5 mm or subfascial location. Access: it is recommended to access at or above the knee joint for great saphenous vein and above the mid-calf for small saphenous vein. Catheter placement: the catheter tip should be pl...

  7. Arm vein reconstruction for limb salvage: long-term outcome.

    OpenAIRE

    Tisi, P. V.; Crow, A. J.; Shearman, C. P.

    1996-01-01

    A series of 42 consecutive patients undergoing infrainguinal vascular reconstruction for limb salvage using vein harvested from the arm were followed prospectively to determine the long-term graft patency and stenosis rates. Vein harvested from the arm ('arm vein') was used for secondary or tertiary reconstruction in 22 patients (52.4%). The outflow was to a single calf vessel in 37 grafts (88.1%). The cumulative primary, primary assisted and secondary graft patency rates were 35.6%, 49.6% an...

  8. Azigos Vein: Is it a Malposition or an Alternative?

    Directory of Open Access Journals (Sweden)

    Habib EMRE

    2011-09-01

    Full Text Available Use of a temporary central venous catheter is common practice in hemodialysis therapy. One of the most common complications of central venous catheterization is catheter malposition. Cannulation of the azygos vein (particularly the azygos arch is a rare but hazardous catheter malposition that carries a substantial risk of perforation, thrombosis and vascular stenosis. On the other hand, the azygos vein can be used for vascular access in patients whose superior vena cava and inferior vena cava are thrombosed. We present a case where the required blood flow for hemodialysis was provided by a dilated azygos vein due to superior vena cava obstruction.

  9. Formation of the external jugular vein in the brown brocket deer (Mazama gouazoubira

    Directory of Open Access Journals (Sweden)

    Gregrio Corra Guimares

    2012-11-01

    Full Text Available The brown brocket deer (Mazama gouazoubira is a brown-greyish short-haired wild ruminant living in Central and South Americas. This paper aimed at describing the formation of the external jugular vein in a male specimen which died due to run-over. The facial and cervical regions were dissected so as to allow the visualization of the external jugular vein and its tributaries. This vein was formed by the union of the maxillary and linguofacial veins. The first originated from the superficial and transverse facial temporal veins, and it received along its length the angular vein of the eye, as well as the dorsal and lateral veins of the nose and upper lip. The second was formed after the anastomosis of the lingual and facial veins. The facial vein was originated by the union of the lower lip and deep facial veins, in the middle third of the face, rostral to the masseter muscle. This vascular arrangement differs from that usually observed in domestic ruminants, in which the transverse facial vein is underdeveloped and the facial vein receives the angular vein of the eye, the dorsal and lateral veins of the nose, besides the upper lip vein. The external jugular vein in the brown brocket deer presented the same tributaries than domestic ruminants, however, with a different vessel arrangement of the facial and facial transverse veins.

  10. Endoscopic vein harvest of the lesser saphenous vein in the supine position: a unique approach to an old problem

    Science.gov (United States)

    Brandt, C. Phillip; Greene, G. Clark; Maggart, Michael L.; Hall, William C.; Harville, Lacy E.; Pollard, Thomas R.; Stouffer, Chadwick W.

    2013-01-01

    OBJECTIVES To obtain a suitable conduit from the lesser (short) saphenous system for use in coronary artery bypass surgery. We wanted to perform this while the patient was in the supine position as to not disrupt the standard operation, and at the same time, utilizing the endoscopic vein harvest technique with its obvious abilities to decrease vein harvest morbidity. We also theorized that through endoscopic techniques instead of the open technique we could harvest greater lengths of conduit, thus providing quality vein segments for additional grafts if needed. METHODS We were able to perform endoscopic vein harvest while in the supine position with one unique centrally located incision that has not been previously described. RESULTS The lesser saphenous vein harvested in the described technique provided excellent conduit for our patients that were conduit poor. The endoscopic technique allowed increased length of harvested segments, by giving us the ability to travel under the gastrocnemius muscle with minimal morbidity as opposed to the open technique, where the traditional endpoint is the aforementioned muscle. Conduits were harvested successfully from 14 of 16 candidates. No wound infections or healing problems were experienced. Neurovascular integrity was maintained in all patients. CONCLUSIONS Endoscopic vein harvest of the lesser saphenous vein with the patient in the supine position is safe, effective and affords conduits for a unique subset of patients undergoing coronary artery bypass grafting. PMID:23049078

  11. Gd-DTPA-enhanced MR venography for varicose veins of the calf

    Energy Technology Data Exchange (ETDEWEB)

    Kohata, Yoshiko; Naito, Akira [Chuden Hospital, Hiroshima (Japan); Ito, Katuhide

    1995-10-01

    2D time-of-flight MR venography (2D TOF MRV) was performed in 16 patients (25 calves) with varicose veins and 2 volunteers (4 calves), and compared with venography. Sequential SPGR (TR/TE/FA=45 ms/7 ms/60deg) transverse images and/or GRASS (TR/TE/FA=100 ms/13 ms/60deg) transverse images were obtained for MRV. Superior presaturation pulse (S-SAT) was placed in 21 calves, and 0.05 mmol/kg Gd-DTPA was used in all calves. Projection MRVs were generated with maximum intensity projection (MIP) reconstruction. Regarding sequence parameter, S-SAT was useful to eliminate signal from artery that would obscure the signal of deep veins. The detectability of deep veins was improved with the use of S-SAT. In the comparison with venography, MRV could more clearly demonstrate varicose veins more than 5 mm in diameter and their drainage veins than venography. But it could not so clearly demonstrate deep veins as venography. It could not detect fine varicose veins less than 5 mm in diameter and connecting veins with valve insufficiency. In the examination of varicose veins, detection of deep veins, large varicose veins and their main drainage veins is clinically important, because diagnosis of patency of deep veins and dilatation of the drainage veins is necessary to choose the treatment, concluding conservative therapy, stripping and sclerotherapy. However, detection of fine varicose veins and connecting veins are not so important because those veins seldom need treatment. MRV was not so suitable for detection of deep veins, but very useful for detection of varicose veins more than 5 mm in diameter and their main drainage veins. In conclusion, MRV is non-invasive and effective method in varicose veins of calf, and it can take the place of venography with the improvement of deep vein detectability. (author).

  12. Mars Opportunity rover finds gypsum veins

    Science.gov (United States)

    Showstack, Randy

    2011-12-01

    Bright linear features about the width of a human thumb that were found on Mars by NASA's Mars Exploration Rover Opportunity appear to be gypsum veins deposited by groundwater, a team of scientists announced at a 7 December news briefing at the AGU Fall Meeting in San Francisco, Calif. To me, this is the single most powerful piece of evidence for liquid water on Mars that has been discovered by the Opportunity rover, said Steve Squyres, a geoscientist at Cornell University in Ithaca, N. Y., and principal investigator for NASA Mars Exploration Rovers Opportunity and Spirit. We have found sulfates before. Those sulfates were formed somewhere; we don't know where. They have been moved around by the wind, they've been mixed with other materials. It's a big, jumbled, fascinating mess. This stuff was formed right here. There was a fracture in the rock, water flowed through it, gypsum was precipitated from the water. End of story. Okay, there is no ambiguity about this. This is what makes it so cool.

  13. Actividad antioxidante y enzimtica de albahaca Nufar (Ocimum basilicum L.) almacenada en refrigeracin / Antioxidant capacity and enzymatical activity of basil nufar (Ocimum basilicum L.) stored under cooling

    Scientific Electronic Library Online (English)

    Eduardo, Lpez-Blancas; Mara Teresa, Martnez-Damin; Mara Teresa, Colinas-Len; Cecilio, Bautista-Bauelos; Juan, Martnez-Sols; Juan Enrique, Rodrguez-Prez.

    2014-12-01

    Full Text Available El presente estudio tuvo como objetivo evaluar el efecto del almacenamiento en refrigeracin sobre la actividad antioxidante y actividad enzimtica en albahaca Nufar. En la Universidad Autnoma Chapingo (Texcoco, Mxico), durante el ciclo primavera-verano de 2012, albahaca previamente empacada en [...] pelcula plstica, se almacen en cmaras frigorficas a 5 y 10 C, y a temperatura ambiente (20 C - testigo), por dieciocho das. Cada 48 horas, se evalu el contenido de fenoles totales, capacidad antioxidante y la actividad de las enzimas catalasa, superxido dismutasa, peroxidasa y polifenol oxidasa. En relacin con el tiempo en refrigeracin a 5 C a los dos y cuatro das se present la mayor actividad de catalasa (14,3 U/mg/pro) y superxido dismutasa (2,9 U/mg/pro), y a los diez y dieciocho das hubo aumento de la actividad de peroxidasa (57,6 y 74,9 U/mg/pro). A 10 C y diez das se increment el contenido de fenoles totales de 3,7 a 4,2 mg/kg/PFr; as como la capacidad antioxidante de 47,5 a 79,1 mg VCEAC/g/PFr a ocho das; tambin aument la actividad de la polifenol oxidasa de 11,7 a 31,8 U/mg/pro a diez das. El almacenamiento a 5 C afect el contenido de fenoles totales y capacidad antioxidante, as como la actividad enzimtica de peroxidasa y polifenol oxidasa, e increment la actividad de catalasa y superxido dismutasa, por lo cual, se sugiere el almacenamiento de albahaca nufar a 10 C para disminuir la actividad de las enzimas oxidativas. Abstract in english The present study aimed to evaluate the effect of refrigerated storage on the antioxidant activity (ability to capture free radicals) and enzymatic activity in basil Nufar. This study was conducted at Chapingo University (Texcoco, Mexico) during the spring-summer of 2012. Basil previously packed i [...] n plastic film was refrigerated at 5 and 10 C, and at room temperature (20 C - control) for 18 days. Every 48 hrs, total phenols, antioxidant capacity and the activity of the enzymes catalase, superoxide dismutase, peroxidase and polyphenol oxidase, were evaluated. Cooling at 5 C had the highest catalase activity (14,3 U/mg/pro) and superoxide dismutase (2,9 U/mg/pro) at 2 and 4 days of storage, while peroxidase activity increased at 10 and 18 days of storage (57,6 and 74,9 U/mg/pro). At 10 C the content of total phenols increased from 3,7 to 4,2 mg/kg/WF after 10 days of storage, and the antioxidant capacity from 47.5 to 79.1 mg VCEAC/g/WF after 8 days of storage; the activity of polyphenol oxidase also increased from 11,7 to 31,8 U/mg/pro after 10 days of storage. The storage at 5 C affected the total phenolic content and antioxidant capacity as well as the enzymatic activity of peroxidase and polyphenol oxidase, and increased the activity of catalase and superoxide dismutase, and therefore, in order to reduce the activity of the oxidative enzmes, it is suggested to store basil nufar at 10 C.

  14. Occurrence and Partial Characterization of Lettuce big vein associated virus and Mirafiori lettuce big vein virus in Lettuce in Iran

    OpenAIRE

    Alemzadeh, E.; Izadpanah, K.

    2012-01-01

    Mirafiori lettuce big vein virus (MiLBVV) and lettuce big vein associated virus (LBVaV) were found in association with big vein disease of lettuce in Iran. Analysis of part of the coat protein (CP) gene of Iranian isolates of LBVaV showed 97.1100% nucleotide sequence identity with other LBVaV isolates. Iranian isolates of MiLBVV belonged to subgroup A and showed 88.698.8% nucleotide sequence identity with other isolates of this virus when amplified by PCR primer pair MiLV VP. The occurren...

  15. Anomalous azygos veins - its embryological basis and clinical significance

    Directory of Open Access Journals (Sweden)

    Uma Shivanal

    2015-09-01

    Results: In the present study, normal azygos venous system was found in 8 specimens accounting for 80%. Variations were found in 2 specimens (20%; one specimen presented with connection between accessory hemiazygos vein and hemiazygos vein, 3 transverse channels across vertebral column and the other specimen showed absence of accessory hemiazygos vein and shifting of azygos vein towards midline. Conclusions: Accurate knowledge about these kinds of variations is very important to identify, especially in the computed tomography and magnetic resonance imaging of mediastinum. The abnormal azygos venous system may easily be confused with aneurysm, lymphadenopathy and other abnormalities like tumor. It is important to keep these kinds of variations in mind while performing the mediastinal operations or surgery of large vessels. [Int J Res Med Sci 2015; 3(9.000: 2323-2326

  16. Plantar vein thrombosis: a rare cause of plantar foot pain

    Energy Technology Data Exchange (ETDEWEB)

    Siegal, Daniel S.; Wu, Jim S.; Brennan, Darren D.; Hochman, Mary G. [Beth Israel Deaconess Medical Center, Department of Radiology, Boston, MA (United States); Challies, Tracy [Beth Israel Deaconess Medical Center, Department of Pathology, Boston, MA (United States)

    2008-03-15

    Plantar vein thrombosis is a rare condition, with only a handful of cases reported in the literature. The cause is unknown; however, the disease has been attributed to prior surgery, trauma, and paraneoplastic conditions. We present a case of a 32-year-old female runner with plantar vein thrombosis diagnosed on contrast-enhanced MRI and confirmed on ultrasound. The symptoms resolved with conservative treatment and evaluation revealed the presence of a prothrombin gene mutation and use of oral contraceptive pills. To our knowledge, this is the first case of plantar vein thrombosis diagnosed initially by MRI. Moreover, this case suggests that plantar vein thrombosis should be considered in patients with hypercoagulable states and plantar foot pain. (orig.)

  17. Dorsal Hand Vein Biometry by Independent Component Analysis

    Directory of Open Access Journals (Sweden)

    V.H.Yadav

    2012-07-01

    Full Text Available Biometric authentication provides a high security and reliable approach to be used in security access system. Personal identification based on hand vein patterns is a newly developed recent year. The pattern of blood veins in the hand is unique to every individual, even among identical twins, and it do notchange over time. These properties of uniqueness, stability and strong immunity to forgery of the vein patterns make it a potentially good biometric trait which offers greater security and reliable features for personal identification. In this study, we have used the BOSPHORUS hand vein database which has been taken under a source of NIR infrared radiation. For feature extraction we applied appearance based method ICA which produces independent components. To control over the number of independent component we preprocessed data by PCA before applying ICA, and gives good experimental results.

  18. Look at Deep Vein Thrombosis and Pulmonary Embolism

    Medline Plus

    Full Text Available ... Share Compartir Contact Us Division of Blood Disorders: A Look at Deep Vein Thrombosis and Pulmonary Embolism ... contains information about the Division of Blood Disorders. A Look at Hemophilia People with hemophilia and medical ...

  19. Look at Deep Vein Thrombosis and Pulmonary Embolism

    Medline Plus

    Full Text Available ... Videos Share Compartir Contact Us Division of Blood Disorders: A Look at Deep Vein Thrombosis and Pulmonary ... Bookmark and Share: Favorites Del.icio.us Digg Facebook Google Bookmarks Technorati Yahoo MyWeb Download this Video ...

  20. Finger Vein Recognition Based on Local Directional Code

    Directory of Open Access Journals (Sweden)

    Rongyang Xiao

    2012-11-01

    Full Text Available Finger vein patterns are considered as one of the most promising biometric authentication methods for its security and convenience. Most of the current available finger vein recognition methods utilize features from a segmented blood vessel network. As an improperly segmented network may degrade the recognition accuracy, binary pattern based methods are proposed, such as Local Binary Pattern (LBP, Local Derivative Pattern(LDP and Local Line Binary Pattern (LLBP. However, the rich directional information hidden in the finger vein pattern has not been fully exploited by the existing local patterns. Inspired by the Webber Local Descriptor (WLD, this paper represents a new direction based local descriptor called Local Directional Code (LDC and applies it to finger vein recognition. In LDC, the local gradient orientation information is coded as an octonary decimal number. Experimental results show that the proposed method using LDC achieves better performance than methods using LLBP.