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Sample records for pityriasis rubra pilaris

  1. Diagnosis and Treatment of Pityriasis Rubra Pilaris

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    Kubanov Alexey

    2014-12-01

    Full Text Available The article deals with clinical diagnosis and treatment of pityriasis rubra pilaris (PRP. The authors analyze the diagnostic errors, present literature review, and their own observations. The clinical study included 23 patients with pityriasis rubra pilaris: 18 women and 5 men, average age of 54 ± 7.2. The clinical diagnosis of all examined patients was subsequently confirmed by histological analysis of the skin. The primary clinical diagnosis was psoriasis in 15 (65.2% patients, 6 (26% patients received treatment for toxic exanthema, and only 2 (8.8% patients were presumptively diagnosed with pityriasis rubra pilaris. In conclusion, pityriasis rubra pilaris was initially misdiagnosed in 91.2% of patients. Considering the great number of diagnostic errors, we analyzed the main diagnostic and differential diagnostic features of PRP. The most effective of all synthetic retinoids in PRP treatment is acitretin. Although symptomatic improvement in PRP occurs within a month, substantial improvement, even clearing is possible within 4 - 6 months.

  2. Systemic sclerosis in a patient with pityriasis rubra pilaris | Frikha ...

    African Journals Online (AJOL)

    Pityriasis rubra pilaris (PRP) is a rare, chronic erythematous squamous disorder of unknown etiology. It has been found in association with several autoimmune diseases, including thyroiditis, myositis, myasthenia gravis and vitiligo. Herein we report a case of systemic sclerosis in a patient with classic adult pityriasis rubra ...

  3. Pityriasis Rubra Pilaris In The Indian Scenario

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    Sarkar Rashmi

    2002-01-01

    Full Text Available Pityriasis rubra pilaris (PRP is an uncommon idiopathic papulosqamous disorder characterized by circumscribed follicular keratosis, palmoplantar keratoderma and frequently erythroderma. Seven patients of PRP (five females and two males in the age range of 2 to 50 years seen over a 2-year period are presented with their clinical features, triggering factors, associations and laboratory investigations. The clinical type of PRP was adult onset classical variety in three, juvenile circumscribed variety in two and adult onset atypical variety and juvenile classical variety in one each. The triggering factors were upper respiratory tract infection with nutritional deficiencies in two and folliculitis in one. The histopathology was consistent with PRP in all. Four patients were managed with oral vitamin A while one each was put on methotrexate, etretinate and topical steroids and they showed a good response. More number of cases should be studied over a longer period to substantiate the suggested immunologic mechanism of PRP.

  4. Acantholytic Pityriasis Rubra Pilaris Associated with Imiquimod 3.75% Application

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    Natasha Atanaskova Mesinkovska

    2011-01-01

    Full Text Available Imiquimod is an immunomodulator with both antitumor and antiviral properties. It is currently available in two cream formulations as Aldara (imiquimod 5% and the newly approved Zyclara (imiquimod 3.75%. Imiquimod has been associated with localized erythema, crusting, and scaling at the site of application. However, more severe generalized skin eruptions including erythema multiforme, psoriasis, and hyperpigmentation have been described. The newly approved imiquimod 3.75% cream is a presumably safer alternative due to its lower concentration. This paper describes the development of generalized acantholytic pityriasis rubra pilaris after the treatment of an actinic keratosis on the forehead with imiquimod 3.75% cream.

  5. Pityriasis Rubra Pilaris: A Report of Two Cases and Literature Review

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    Paravina Mirjana

    2015-12-01

    Full Text Available Pityriasis rubra pilaris (PRP is an idiopathic inflammatory hyperproliferative chronic dermatosis characterized by: perifollicular coalescing papules with central keratotic acuminate plugs gradually submerged in sheets of erythema; perifollicular erythema with islands of unaffected skin; palmoplantar keratoderma; diffuse desquamation which typically spreads from the head down to the feet. The cause of the condition is unknown, but possible etiological factors include: vitamin A deficiency, trauma, infections, autoimmune mechanisms, and malignancies. Taking into account different age of onset, clinical course, morphology and prognosis, there are six different types of the disease: two in adults (classical and atypical; three in children (classical, circumscribed and atypical; one in individuals infected with human immunodeficiency virus.

  6. Ustekinumab as an Alternative Treatment Option for Chronic Pityriasis Rubra Pilaris

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    Mudit Chowdhary

    2015-03-01

    Full Text Available Pityriasis rubra pilaris (PRP is an exceptionally rare, chronic inflammatory dermatosis of unknown etiology. Patients classically present with small, follicular keratosis and salmon-colored plaques that begin at the head and neck and slowly progress to widespread erythroderma including the palms and soles. It is difficult to distinguish PRP from other inflammatory dermatoses; however, features that help aid in the diagnosis include ‘islands' of spared skin, orangish hue and typical findings on biopsy. There are no specific guidelines on therapy and treatment options include corticosteroids, vitamin D analogs, retinoids, methotrexate, cyclosporine, azathioprine and tumor necrosis factor alpha antagonists. Unfortunately options are limited for patients when these drugs do not work. We report a case of chronic PRP, refractory to conventional treatment, successfully treated with ustekinumab monotherapy. The patient was treated with 90 mg subcutaneous ustekinumab injections and began to show improvement within only 8 weeks. Long-term control of the disease has been attained without any significant side effects. We report this case to show that ustekinumab can be used as an alternative treatment method for patients with chronic, unremitting PRP. Treatment response is remarkably rapid and the infrequent dosing leads to patient compliance and a significantly improved quality of life.

  7. Association pityriasis rubra pilaire et myasthenie

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    Fatima Zahra Agharbi

    2011-09-01

    Full Text Available Le pityriasis rubra pilaire est un trouble de keratinisation rare dont l�etiopathogenie reste inconnue mais dont l�association avec autres pathologies a ete deja rapportee. Nous rapportons l�observation d�une jeune patiente qui presente un pityriasis rubra pilaire associe a une myasthenie. Traitee par Neostigmine et thymectomie avec bonne evolution sur le plan neurologique. Vu son desir de grossesse un traitement systemique de son pityriasis rubra pilaire n�a pas pu etre instaure et l�evolution sous dermocorticoides n�etait pas tres favorable.

  8. Keratosis pilaris

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/001462.htm Keratosis pilaris To use the sharing features on this page, please enable JavaScript. Keratosis pilaris is a common skin condition in which ...

  9. Case report

    African Journals Online (AJOL)

    raoul

    21 sept. 2011 ... Pityriasis rubra pilaris and HIV infection. J Am Acad Dermatol. 1991; 24:703-705. This article on PubMed. 4. Sharma S, Weiss GR, Paulger B. Pityriasis rubra pilaris as an initial presentation of hepatocellular carcinoma. Dermatology. 1997; 194. (2):166-7. This article on PubMed. 5. Polat M, Lenk N, Ustun H, ...

  10. Keratosis pilaris on the cheek (image)

    Science.gov (United States)

    Keratosis pilaris occurs most commonly during childhood and produces small, rough spots. called papules, that are typically ... especially during winter months, makes the condition worse. Keratosis pilaris tends to be inherited and may be ...

  11. Does pityriasis rosea Koebnerise?

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    Nwabudike Lawrence Chukwudi

    2013-04-01

    Full Text Available The Koebner phenomenon or isomorphic phenomenon is described in dermatology texts as the production of lesions of the original disease, in clinically uninvolved skin, following trauma. The lesions are located at the site of trauma and evidence of a traumatic causation is the linear arrangement of some of the lesions, such as in the case of lichen planus. Other disorders known to exhibit the Koebner phenomenon include psoriasis and vitiligo. A number of other diseases are associated with the Koebner phenomenon. Pathergy is a phenomenon of pustule production following trauma, which occurs in certain disorders such as Pyoderma gangrenosum and Behçet?s disease. In some disorders such as impetigo and verruca vulgaris, inoculation may give the appearance of the Koebner phenomenon. A case of pityriasis rosea and Koebner phenomenon at the site of routine blood assay is described in this work. This author has not thus far encountered any description of the Koebner reaction in relation to pityriasis rosea in the literature, but, perhaps, with this report, other physicians will be more open to this possibility and actually uncover similar cases.

  12. Blaschkoid pityriasis versicolor.

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    Tan, Cheng; Zhu, Wen-Yuan; Min, Zhong-Sheng

    2010-07-01

    A 31-year-old male patient complained of having follicular and brownish red maculopapules along the Blaschko's lines on the right chest for 2 days. On examination, follicular brownish maculopapules were present on the chest with a uniform size of about 3 mm in diameter. The lesions were isolated without a tendency to merge, giving several S-shaped, band-like appearances. Direct mycological examination of the skin flakes revealed many pseudomycelial hyphae and yeast cells with typical spaghetti and meatball appearance. Wood's light examination of the lesion revealed a golden yellow fluorescence. A diagnosis of blaschkoid pityriasis versicolor was suggested because of blaschkoid distribution of the lesions in this new variant of PV.

  13. Secondary syphilis lesions resembling pityriasis

    International Nuclear Information System (INIS)

    Dar, N.R.; Ali, L.; Nawaz, M.A.

    2007-01-01

    This case report describes a male patient who presented with generalized, centrally-ulcerated papules with crusts and hypopigmented macules. Initially, differential diagnostic considerations included pityriasis lichenoides but the serology for syphilis was positive and there was a rapid response to penicillin with clearing of the lesions at the end of three weeks treatment. (author)

  14. Papular, profuse, and precocious keratosis pilaris.

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    Castela, Emeline; Chiaverini, Christine; Boralevi, Franck; Hugues, Rosalind; Lacour, Jean Philippe

    2012-01-01

    Keratosis pilaris (KP) is a frequent and benign condition in children characterized by the presence of rough, follicular papules and varying degrees of erythema. Different variants have been described, including simple KP and red KP. Between September 2007 and October 2010, 11 children with profuse and precocious KP seen at the department of pediatric dermatology were included. They defined an underemphasized clinical variant of childhood KP: the papular, profuse, and precocious KP characterized by early age of onset (<18 mos), extensive involvement of the limbs and cheeks, and papular nature of lesions. No clinical association has been found. The main complication was episodes of folliculitis. Diagnosis was delayed for all patients. Treatment is difficult, but association between emollient and keratolytic agents can provide some help. © 2011 Wiley Periodicals, Inc.

  15. A case of new onset keratosis pilaris after discontinuation of erlotinib.

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    Okereke, Uchenna R; Colozza, Sara; Cohen, David E

    2014-11-01

    Keratosis pilaris and keratosis pilaris-like eruptions have been reported in association with RAF inhibitors sorafenib and vemurafenib. We describe herein what is to our knowledge the first reported case of new onset keratosis pilaris after discontinuation of EGFR inhibitor erlotinib. A 60 year-old female with stage IV lung cancer was treated with erlotinib (100 mg/d). The patient elected to discontinue erlotinib after four years secondary to adverse systemic reactions. However, five months later small, monomorphic, rough, folliculocentric papules with surrounding mild erythema characteristic of keratosis pilaris were noted on upper back and arms. This serves as the first documented case of new onset keratosis pilaris in a patient after discontinuation of erlotinib. We report the present case to show the possible association of keratosis pilaris with not only RAF inhibitors, but also the EGFR inhibitor erlotinib. Further investigation will determine whether this is a class effect with other systemic EGFR inhibitors.

  16. Malassezia Species and Pityriasis Versicolor

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    Gulin Rodoplu

    2016-01-01

    Full Text Available Malassezia species are found in part of the normal human cutaneous commensal flora, however it has been known for many years that the Malassezia yeasts are associated with a number of different human diseases ranging from pityriasis versicolor to seborrhoeic dermatitis. In addition, since the 1980s, they have been reported as causing opportunistic systemic infections. The taxonomy of Malassezia spp. has recently been modified to include 13 obligatorily lipophilic species, plus one non-obligatorily lipophilic species, which only rarely colonizes human hosts and currently the genus consist 14 species as M. furfur, M. pachydermatis, M. sympodialis, M. globosa, M. obtusa, M. slooffiae, M. restricta, M. dermatis, M. japonica, M. nana, M. yamatoensis, M. caprae, M. equina, M. cuniculi. Fastidious growth requirements of Malassezia yeasts defied the initial attempts to culture these organisms and their true identification and the relationship between different species only became apparent with the application of modern molecular techniques. The causative fungus is seen especially in such seborrheic areas as the scalp, face, trunk and upper back. Under the influence of various exogenous or endogenous predisposing factors, these yeasts change from the blastospore form to the mycelial form and become pathogenic. Diagnosis of pityriasis versicolor which is caused by Malassezia species is generally easy and lies on the basis of its clinical appearance and can be confirmed by mycological examination. The diagnosisis is mainly based on direct examination with potassium hydroxide (KOH and demonstration that represents pseudohyphae and blastoconidia as the typical %u201Cspaghetti and meatballs%u201D pattern. Characteristic features of the genus Malassezia include a distinctive morphology and an affinity for lipids in culture. Culture is necessary to recover the infecting strain, especially for epidemiologic purposes and also to test its antifungal susceptibility

  17. Atypical pityriasis versicolor case report

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    Zonunsanga

    2015-04-01

    Full Text Available Pityriasis versicolor is a superficial fungal infection caused by mycelial form of Malassezia spp, which is confined to stratum corneum. It usually present in the trunk as either hypo or hyperpigmented, aymptomatic, round to oval macules of varying sizes, which may merged to form geographic shape. Diagnosis is usually done clinically, or KOH examination which shows typical spagetti and meat balls appearances, or even by wood’s lamp which shows orange to yellow fluorescence. The case series had been recording in between 2012 to 2013. Within that period, we had recorded 32 cases. All the patients which we had recorded presented with multiple, asymptomatic macules of small sizes varying from 1-2 cm in diameter to 3-4mm in diameter, usually round to oval, hypopigmented, non scaly lesions. 26 patients had lesions on forearms, 3 patients had lesions on dorsa of hands bilaterally, 3 patients had similar kind of lesions on thigh. Besnier’s test was positive in 14 (43.75% patients. KOH examinations showed fungal hyphae in 14 (33.33% patients with typical spagetti and meat balls appearances in 9 (8.13% patients. All of them were given and all of them got response and healed within 2-4 months.

  18. Fluconazole and itraconazole in pityriasis versicolor

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    Jaswal Ritu

    1999-01-01

    Full Text Available Pityriasis versicolor is a common superficial fungal infection caused by Malassezia species. It has a high incidence and prevalence in tropical climates. Although it responds well to treatment, relapses and recurrences are frequent. In the present study the therapeutic response of single dose fluconazole (400 mg with itraconazole (100mg twice daily ? 7 days was compared in sixty patients of pityriasis versicolor. No significant statistical difference (p>0.05% was observed between efficacy of two drugs. Therapy with fluconazole is preferable in view of single dose administration and lesser cost as compared to itraconazole.

  19. Festuca rubra L. op Terschelling

    NARCIS (Netherlands)

    Freijsen, A.H.J.; Heusden, van H.T.A.

    1965-01-01

    The authors performed a preliminary survey of Festuca rubra L. s.l. in the outer dunes of the West- Frisian island of Terschelling. Starting-point was the question which dune-form of this grass — Festuca juncifolia St. Amans or Festuca rubra subvar. arenaria (Osb.) Hack. — was growing there. In the

  20. PITYRIASIS VERSICOLOR – POSSIBLE GENETIC BASIS ...

    African Journals Online (AJOL)

    Non-occurrence of Pityriasis versicolor (PV) in spouses of individuals with this superficial fungal infection despite several years of cohabitation suggests that heredity might play an important role in those affected. Forty subjects who were married were studied in two phases. The first phase involved using a detailed ...

  1. Case report

    African Journals Online (AJOL)

    raoul

    2010-08-09

    Aug 9, 2010 ... sclerodactyly with finger flexion contractures and digital tuft loss (Figure 1). ... such as Vitamin A and its derivatives [30], methotrexate and cyclosporine ... Desquamation from the parts covered with hair. ... Shvili D, David M, Mimouni M. Childhood-onset pityriasis rubra pilaris with immunologic abnormalities.

  2. Terbinafine induced pityriasis rosea-like eruption.

    Science.gov (United States)

    George, Anisha; Bhatia, Anuradha; Kanish, Bimal; Williams, Abhilasha

    2015-01-01

    Terbinafine is an allylamine antifungal agent which is widely used for the treatment of fungal infections. Cutaneous side effects have been reported in 2% of the patients on terbinafine therapy with many morphological patterns. We report a case of terbinafine induced pityriasis rosea, a very rare side effect of terbinafine. This report emphasizes the importance of counseling the patient to report immediately in the event of a cutaneous eruption.

  3. Terbinafine induced pityriasis rosea-like eruption

    OpenAIRE

    Anisha George; Anuradha Bhatia; Bimal Kanish; Abhilasha Williams

    2015-01-01

    Terbinafine is an allylamine antifungal agent which is widely used for the treatment of fungal infections. Cutaneous side effects have been reported in 2% of the patients on terbinafine therapy with many morphological patterns. We report a case of terbinafine induced pityriasis rosea, a very rare side effect of terbinafine. This report emphasizes the importance of counseling the patient to report immediately in the event of a cutaneous eruption.

  4. Keratosis pilaris and prevalence of acne vulgaris: a cross-sectional study.

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    Schmitt, Juliano Vilaverde; Lima, Brunno Zeni de; Souza, Monique Carolina Meira do Rosário de; Miot, Hélio Amante

    2014-01-01

    Acne vulgaris has an important genetic predisposition, as well as keratosis pilaris. Clinical observations suggest that patients with keratosis pilaris have less frequent or less severe acne breakouts; however, we found no studies on this regard To determine if the presence of keratosis pilaris is associated with lower prevalence and severity of acne. A cross-sectional study was conducted with dermatology outpatients aged between 14 and 35 years. We evaluated history and clinical grade of acne, demographic variables, history of atopy, smoking, and use of hormonal contraceptives. Two groups were defined by the presence or absence of moderate to severe keratosis pilaris on the arms and were compared by bivariate analysis and by conditional multiple logistic regression. We included 158 patients (66% women), with a median age of 23 ± 11 years. Twenty-six percent of them had keratosis pilaris, which was associated with a history of atopy (odds ratio [OR]=2.80 [1.36 to 5.75]; pkeratosis pilaris had a less frequent history of acne (OR=0.32 [0.14 to 0.70]; pkeratosis pilaris on the arms was associated with lower prevalence of acne vulgaris and lower severity of facial lesions in adolescents and young adults.

  5. Keratosis pilaris and prevalence of acne vulgaris: a cross-sectional study*

    Science.gov (United States)

    Schmitt, Juliano Vilaverde; de Lima, Brunno Zeni; de Souza, Monique Carolina Meira do Rosário; Miot, Hélio Amante

    2014-01-01

    BACKGROUND Acne vulgaris has an important genetic predisposition, as well as keratosis pilaris. Clinical observations suggest that patients with keratosis pilaris have less frequent or less severe acne breakouts; however, we found no studies on this regard OBJECTIVE To determine if the presence of keratosis pilaris is associated with lower prevalence and severity of acne. METHODS A cross-sectional study was conducted with dermatology outpatients aged between 14 and 35 years. We evaluated history and clinical grade of acne, demographic variables, history of atopy, smoking, and use of hormonal contraceptives. Two groups were defined by the presence or absence of moderate to severe keratosis pilaris on the arms and were compared by bivariate analysis and by conditional multiple logistic regression. RESULTS We included 158 patients (66% women), with a median age of 23±11 years. Twenty-six percent of them had keratosis pilaris, which was associated with a history of atopy (odds ratio [OR]=2.80 [1.36 to 5.75]; pkeratosis pilaris had a less frequent history of acne (OR=0.32 [0.14 to 0.70]; pkeratosis pilaris on the arms was associated with lower prevalence of acne vulgaris and lower severity of facial lesions in adolescents and young adults. PMID:24626653

  6. Pityriasis lichenoides chronica in association with Tubercular Lymphadenitis

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    Pandhi R

    1997-01-01

    Full Text Available A patient with pityriasis lichenoides chronica (PLC during the course of her skin disease developed tuberculosis of cervical lymph nodes. Anti-tuberculosis treatment resulted in remission of PLC. Mycobacterium tuberculosis could be one of the triggering agent in pityriasis lichenoides.

  7. Pityriasis versicolor in primary school children in Medan Labuhan

    Science.gov (United States)

    Febriyanti; Paramita, DA; Eyanoer, P.

    2018-03-01

    Personal hygiene is an activity in which done by someone, directly and indirectly, to keep healthy to prevent the risk of diseases. Personal hygiene is also a factor that plays a role in the occurrence of skin diseases and one of them is Pityriasis versicolor. Pityriasis versicolor is a superficial fungal infection caused by Malassezia furfur which is a saprophytic organism in the skin. Activation of M. furfur into a pathogenic form due to changes in the normal flora of the skin that caused by several factors and one of them is poor personal hygiene. A cross-sectional study consist of 115 eligible students is done to determine the relationship between personal hygiene with the occurrence of Pityriasis versicolor among students in primary school in Medan Labuhan district. The result showed that 59.8% of the subject with poor personal hygiene and there is a significant association between personal hygiene with Pityriasis versicolor (p<0.05).

  8. Ketoconazole 2% shampoo in pityriasis versicolor: An open trial

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    Rathi S

    2003-03-01

    Full Text Available Pityriasis versicolor is a common superficial fungal infection caused by a lipophilic yeast. The aim of the study was to evaluate the efficacy of ketoconazole 2% shampoo in the treatment of pityriasis versicolor, for which thirty patients were included. The shampoo was applied daily for 3 days and found to be very effective in clearing the signs and symptoms of the disease. There was no serious adverse effects.

  9. Study of role of streptococcal throat infection in pityriasis rosea

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    Parija Madhuri

    2008-01-01

    Full Text Available Background: Pityriasis rosea is a common, acute exanthem of uncertain etiology. The exact cause of pityriasis rosea is not known but various hypotheses have been postulated incriminating infective agents such as viruses, bacteria, spirochete and noninfective etiologies such as atopy and autoimmune causes have also been investigated. Aim: We undertook a study to investigate the role of Streptococcus haemolyticus in the causation of pityriasis rosea and study the levels of C-reactive protein (CRP and ASLO titer in patients with pityriasis rosea. Materials and Methods: The study included 20 patients with pityriasis rosea attending the outpatient dermatology department at JIPMER hospital during the period from June to December 2004. Corresponding number of age- and sex-matched controls were chosen from amongst healthy individuals and patients attending skin OPD with dermatological disorders other than pityriasis rosea. Results: On analyzing the data collected from 20 cases of pityriasis rosea, the average age was found to be 15.3 years and ranged from 5 years to 30 years. The male to female ratio was found to be 1.5:1. The average duration of illness was 14.5 days (median and 29.3 days (mean. CRP was negative in all the cases as well as the controls. ASLO titer was found to be raised in 2 (10% cases, while it remained below the critical value in all the controls. On comparing the cases and controls, the raised ASLO titer in the cases was found to be not statistically significant (p = 0.147. From the throat swab culture, Streptococcus haemolyticus was isolated from only one case and none of the controls. This finding was not statistically significant (p = 0.310. Conclusion: As per the findings of the present study, we arrived at conclusion that there is no association between streptococcus pharyngitis and pityriasis rosea.

  10. An Atypical Case of Pityriasis Rosea Gigantea after Influenza Vaccination

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    Dimitrios Papakostas

    2014-04-01

    Full Text Available Pityriasis rosea is a common erythematosquamous eruption, typically presenting along the cleavage lines of the skin. A wide spectrum of atypical manifestations may challenge even the most experienced physician. Here we report a rare case of a suberythrodermic pityriasis rosea with gigantic plaques after an influenza vaccination, and we discuss the possible triggers of atypical manifestations of such a common dermatological disease in the setting of an altered immunity.

  11. Pityriasis versicolor in the pediatric age group

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    Jena Deepak

    2005-01-01

    Full Text Available BACKGROUND: Pityriasis versicolor (PV is a mild chronic infection of the skin caused by Malassezia yeasts. Although it is primarily seen in adults, children are often affected in the tropics . METHODS: Over a period of 2 years, children (up to the age of 14 years who were clinically and mycologically diagnosed as PV were included in the study. The clinical and epidemiological pattern in different age groups was noted. RESULTS: PV in this age group formed about 31% of the total cases of PV; 4.8% cases presented in infancy. The commonest site of involvement was the face in 39.9% of the cases. Most of the cases presented in summer months. CONCLUSIONS: PV is not an uncommon disease among children in the tropics. There is a sudden resurgence of cases in the hot monsoons and even infants are not spared.

  12. Fluconazole in the therapy of Pityriasis versicolor

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    Poljački Mirjana N.

    2005-01-01

    Full Text Available The authors present the results of the systemic application of flukonazole in therapy of Pityriasis versicolor. It was arranged for the total number of 38 patients, 18 females and 20 males. The diagnosis of diseases was established on the base of the clinical examination, the native mycological examination and by the using of Wood lamps. The therapy was passed by the using of 300 mg flukonazole in a single dose, once weekly, during two weeks. The following period amounted to one week after the passed therapy. The therapeutic efficacy was assessed with regard to the clinical and mycological healing. The clinical efficacy was assessed semiquantitative on the base of increasing of the percentage rates of the total score of disease that was computed by collecting of the numeric values for every clinical argument typical for the disease, and the mycological efficacy on the base of the mycological findings and the fluorescence finding after lightening with the Wood's lamp. The controlling examinations were performed on day 0, 14 and 22. The results of investigations have shown that the complete clinical healing was achieved after two weeks of therapy in 94,74%, and the mycological healing in 92,11% patients. The rate of the mycological healing was evaluated after 1 week of following period equal to the rate of the clinical healing and it was also 94,74%. The undesirable effects of the drug applications weren't by any patient.

  13. Acral pityriasis versicolor – A rare clinical presentation

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    Tasleem Arif

    2015-04-01

    Full Text Available Pityriasis versicolor is a superficial fungal infection of the skin caused by the yeast of the genus Malassezia and presents as hypo or hyper pigmented scaly macules. The most commonly affected sites include upper trunk, upper arms, neck and the abdomen. Lesions confined to the acral parts like hands and feet have rarely been reported. In this article the author reports a 40 year old male who presented with multiple hypo pigmented scaly macules confined to the acral parts (hands and wrist. The acral variant of pityriasis versicolor is considered to be a very rare clinical entity which prompted the author to report this case.

  14. Pregnancy outcome in patients with pityriasis rosea.

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    Drago, Francesco; Broccolo, Francesco; Zaccaria, Elisa; Malnati, Mauro; Cocuzza, Clementina; Lusso, Paolo; Rebora, Alfredo

    2008-05-01

    The effect of pityriasis rosea (PR) on the outcome of pregnancy has not been previously reported. We sought to investigate the possible impact of PR in pregnant women. In all, 38 women who developed PR during pregnancy were observed. In one of them, who developed PR at 10 weeks' gestation and aborted 2 weeks later, plasma, peripheral blood mononuclear cells, maternal skin, and placental and embryonic tissues were studied by quantitative calibrated real-time polymerase chain reaction for human herpesviruses (HHV)-6 and -7. Controls included plasma from 36 healthy blood donors, plasma and paraffin-embedded tissue sections from 12 patients with other dermatitides, and from placental and embryonic tissues from one woman who presented with a 19-week intrauterine fetal death. Of the 38 women, 9 had a premature delivery and 5 miscarried. In particular, 62% of the women who developed PR within 15 weeks' gestation aborted. Neonatal hypotonia, weak motility, and hyporeactivity were noted in 6 cases. In the patient studied in detail, HHV-6 DNA was detected in plasma, peripheral blood mononuclear cells, skin, and placenta and embryonic tissues, whereas HHV-7 DNA was absent. HHV-6 p41 antigen was detected by immunohistochemistry in skin lesions, placenta, and embryonic tissues. No herpesvirus DNA was detected in plasma and tissues from control subjects. This is a case series study with a small number of patients. PR may be associated with an active HHV-6 infection. In pregnancy, PR may foreshadow premature delivery with neonatal hypotonia and even fetal demise especially if it develops within 15 weeks' gestation.

  15. Clinicomycological profile of pityriasis versicolor in Assam.

    Science.gov (United States)

    Sharma, Ajanta; Rabha, Debajit; Choraria, Saveta; Hazarika, Debeeka; Ahmed, Giasuddin; Hazarika, Naba Kumar

    2016-01-01

    Geographical variation in the distribution of Malassezia species associated with pityriasis versicolor (PV) has led to the necessity of studying epidemiological, mycological, and clinical characteristics of PV. To study the epidemiological, mycological, and clinical characteristics of PV in a tertiary care hospital. The study was carried out with a cross-sectional design. Two hundred and sixty-two consecutive PV patients were subjected to detailed history, clinical examination, and investigations. Skin scrapings were processed by direct microscopy and culture. Isolates were identified by phenotypic characteristics and polymerase chain reaction-restriction fragment length polymorphism. Association of Malassezia species with clinical and epidemiological characteristics was studied. Statistical analysis of the data was done using statistical software. Maximum number of PV cases (33.9%) belonged to the age group of 21-30 years with a male preponderance. 61.4% of the patients had a sedentary lifestyle, 70.2% showed the gradual onset of the disease, 51.1% presented with pruritus and in 66.4% of the patients symptoms were continuous. Most commonly involved body site was neck (27.8%), 77.09% of the lesions were bilaterally asymmetrical, 87.4% were macular, and 89.3% were hypopigmented. Malassezia furfur (77.3%) was the predominant species. Sedentary lifestyle (61.4%) and increased sweating (48%) were the most commonly associated predisposing factors. PV is more common in males. Distribution of Malassezia species varies significantly from those reported in other parts of India. M. furfur was the most common species responsible for PV in our region. Hence, further studies are required to evaluate the exact cause of this variation.

  16. Clinicomycological profile of pityriasis versicolor in Assam

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    Ajanta Sharma

    2016-01-01

    Full Text Available Background: Geographical variation in the distribution of Malassezia species associated with pityriasis versicolor (PV has led to the necessity of studying epidemiological, mycological, and clinical characteristics of PV. Aims: To study the epidemiological, mycological, and clinical characteristics of PV in a tertiary care hospital. Settings and Design: The study was carried out with a cross-sectional design. Materials and Methods: Two hundred and sixty-two consecutive PV patients were subjected to detailed history, clinical examination, and investigations. Skin scrapings were processed by direct microscopy and culture. Isolates were identified by phenotypic characteristics and polymerase chain reaction-restriction fragment length polymorphism. Association of Malassezia species with clinical and epidemiological characteristics was studied. Statistical analysis of the data was done using statistical software. Results: Maximum number of PV cases (33.9% belonged to the age group of 21–30 years with a male preponderance. 61.4% of the patients had a sedentary lifestyle, 70.2% showed the gradual onset of the disease, 51.1% presented with pruritus and in 66.4% of the patients symptoms were continuous. Most commonly involved body site was neck (27.8%, 77.09% of the lesions were bilaterally asymmetrical, 87.4% were macular, and 89.3% were hypopigmented. Malassezia furfur (77.3% was the predominant species. Sedentary lifestyle (61.4% and increased sweating (48% were the most commonly associated predisposing factors. Conclusion: PV is more common in males. Distribution of Malassezia species varies significantly from those reported in other parts of India. M. furfur was the most common species responsible for PV in our region. Hence, further studies are required to evaluate the exact cause of this variation.

  17. Pityriasis Lichenoides Chronica Associated with Herpes Simplex Virus Type 2

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    Antonio Javier González Rodríguez

    2012-01-01

    Full Text Available Introduction. Pityriasis lichenoides is a rare, acquired spectrum of skin conditions of an unknown etiology. Case Report. A 28-year-old man presented with recurrent outbreaks of herpes simplex virus associated with the onset of red-to-brown maculopapules located predominantly in trunk in each recurrence. Positive serologies to herpes simplex virus type 2 were detected. Histopathological examination of one of the lesions was consistent with a diagnosis of pityriasis lichenoides chronica. Discussion. Pityriasis lichenoides is a rare cutaneous entity of an unknown cause which includes different clinical presentations. A number of infectious agents have been implicated based on the clustering of multiple outbreaks and elevated serum titers to specific pathogens (human immunodeficiency virus, cytomegalovirus, Epstein-Barr virus, Toxoplasma gondii, and herpes simplex virus. In our patient, resolution of cutaneous lesions coincided with the administration of antiviral drugs and clinical improvement in each genital herpes recurrence. In conclusion, we report a case in which cutaneous lesions of pityriasis lichenoides chronica and a herpes simplex virus-type 2-mediated disease have evolved concomitantly.

  18. Comparative histopathology of Pityriasis versicolor and Pityrosporum folliculitis

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    Mittal R

    1992-01-01

    Full Text Available Twenty five cases each of pityriasis versicolor (PV and pityrosporum folliculitis (PF were selected for this study. Histopathologically in PV, spores and hyphae in spaghetti and meatball appearance in stratum corneum, and perivascular mononuclear infiltrate were seen. In PF, spores were inside the dilated hair follicles filled with keratin, perifollicular and perivascular mononuclear infiltration were seen. Basket weave hyperkeratosis, edema and disruption of collagen were seen in 88% cases of PF and have not been reported earlier.

  19. Treatment of pigmented keratosis pilaris in Asian patients with a novel Q-switched Nd:YAG laser.

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    Kim, Sangeun

    2011-06-01

    Treatment for most cases of keratosis pilaris requires simple reassurance and general skin care recommendations. Many Asian patients find lesions due to pigmented keratosis pilaris to be cosmetically unappealing. Treatment of post-inflammatory hyperpigmentation using a 1064-nm Q-switched Nd:YAG laser with low fluence is reported. To investigate the efficacy of a novel Q-switched Nd:YAG laser for the treatment of pigmented keratosis pilaris in Asian patients. Ten patients with pigmented keratosis pilaris underwent five weekly treatments using a Q-switched Nd:YAG laser (RevLite(®); HOYA ConBio(®), Freemont, CA, USA) at 1064 nm with a 6-mm spot size and a fluence of 5.9 J/cm(2). Photographic documentation was obtained at baseline and 2 months after the final treatment. Clinical improvement was achieved in all 10 patients with minimal adverse effects. For the treatment of keratosis pilaris, the use of a Q-switched Nd:YAG laser can be helpful for improving cosmetic appearance as it can improve pigmentation.

  20. Pityriasis rosea-like eruptions due to mustard oil application

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    Zawar Vijay

    2005-01-01

    Full Text Available A young man employed in a construction company, presented with cutaneous lesions clinically simulating pityriasis rosea. Satisfactory and complete response to corticosteroids and antihistamines was followed by recurrence. Multiple recurrences within a short span of time arose a suspicion of alternative diagnosis. Site visit helped us to rule out occupational contact dermatitis. Further history taking revealed that he was recently using mustard oil for body massage. Subsequent patch testing confirmed contact hypersensitivity to mustard oil. Avoidance of the contact with mustard oil arrested appearance of further skin lesions. We stress the importance of taking a good history in clinical practice in disclosing a possible contactant.

  1. Keratosis Pilaris Revisited: Is It More Than Just a Follicular Keratosis?

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    Thomas, Mary; Khopkar, Uday Sharadchandra

    2012-01-01

    Background: Keratosis pilaris (KP) is characterized by keratinous plugs in the follicular orifices and varying degrees of perifollicular erythema. The most accepted theory of its pathogenesis proposes defective keratinization of the follicular epithelium resulting in a keratotic infundibular plug. We decided to test this hypothesis by doing dermoscopy of patients diagnosed clinically as keratosis pilaris. Materials and Methods: Patients with a clinical diagnosis of KP seen between September 2011 and December 2011 were included in the study. A clinical history was obtained and examination and dermoscopic evaluation were performed on the lesions of KP. Results: The age of the patients ranged from 6-38 years. Sixteen patients had history of atopy. Nine had concomitant ichthyosis vulgaris. All the 25 patients were found to have coiled hair shafts within the affected follicular infundibula. The hair shafts were extracted with the help of a sterile needle and were found to retain their coiled nature. Perifollicular erythema was seen in 11 patients; perifollicular scaling in 9. Conclusion: Based on our observations and previously documented histological data of KP, we infer that KP may not be a disorder of keratinization, but caused by the circular hair shaft which ruptures the follicular epithelium leading to inflammation and abnormal follicular keratinization. PMID:23766609

  2. Over de twee ondersoorten van Festuca rubra L. in Nederland

    NARCIS (Netherlands)

    Wilde-Duyfjes, de B.E.E.

    1973-01-01

    A survey is given of the literature concerning Festuca rubra L. s.l. as it occurs along the European coasts. For the Netherlands two subspecies are distinguished, viz. subsp. rubra and subsp. arenaria (Osb.) Richt. This is in accordance with the findings of FREIJSEN & HEERES (1972).

  3. Study of oral Ketoconazole on recurrent & extensive Pityriasis Versicolor

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    Moghaddami M

    1997-04-01

    Full Text Available Several topical agents have been used for treating Pityriasis versicolor. But the main problem is recurrence. In this study 82 patients with recurrent and/or extensive from of infection were treated with oral Ketoconazole. 200 mg once daily for a maximum of 4 weeks. Seventeen patients have been infected for the first time and sixty five for the several times. The duration of disease in most cases (35.4% were between 1-3 years. Out of 82 studied patients only 60 cases were referred for follow up. The clinical and mycological cure were seen in 54 cases (90% after 15 days therapy. In other 6 patients after 15 days the lesions have not cured completely so the treatment was continued for other 2 weeks, but after that, only one of them referred to the clinic, which treatment extended with topical therapy.

  4. The efficacy of azithromycin in pityriasis rosea: A randomized, double-blind, placebo-controlled trial

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    Deepika Pandhi

    2014-01-01

    Full Text Available Background: Macrolides are prescribed in the treatment of pityriasis rosea despite conflicting results of the limited number of studies evaluating their role in its treatment. Aim: A randomized double-blind placebo-controlled trial was conducted to evaluate the effect of azithromycin on the clinical course of pityriasis rosea. Methods: Seventy patients of pityriasis rosea were given either azithromycin (n = 35 or placebo (n = 35 and were followed-up at 2, 4 and 6 weeks. Pruritus was assessed in both groups using the visual analogue scale (VAS . Change in the pityriasis rosea severity score (PRSS and in the VAS were recorded as outcome measures and were compared statistically. Results: The decrease in PRSS from baseline through 2, 4 and 6 weeks within both treatment (P < 0.001 and placebo (P < 0.001 arms was found to be statistically significant; however, this change was not significantly different in the two groups (P = 0.179. Similarly, the decrease in VAS was found to be statistically significant within both groups (P < 0.001; however, the change was comparable between the two groups (P < 0.937. Analysis by Fisher′s exact test did not find a significant difference between the two groups for PRSS and VAS. Conclusion: Azithromycin is not effective in pityriasis rosea and the use of macrolides for this disease should not be encouraged in clinical practice.

  5. Case clustering in pityriasis rosea: a multicenter epidemiologic study in primary care settings in Hong Kong.

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    Chuh, Antonio A T; Lee, Albert; Molinari, Nicolas

    2003-04-01

    To investigate the epidemiology of pityriasis rosea in primary care settings in Hong Kong and to analyze for temporal clustering. Retrospective epidemiologic study. Six primary care teaching practices affiliated with a university. Patients Forty-one patients with pityriasis rosea, 564 patients with atopic dermatitis (negative control condition), and 35 patients with scabies (positive control condition). We retrieved all records of patients with pityriasis rosea, atopic dermatitis, or scabies diagnosed in 3 years. We analyzed temporal clustering by a method based on a regression model. The monthly incidence of pityriasis rosea is negatively but insignificantly correlated with mean air temperature (gamma s = -0.41, P =.19) and mean total rainfall (gamma s = -0.34, P =.27). Three statistically significant clusters with 7, 6, and 7 cases were identified (P =.03), occurring in the second coldest month in the year (February), the second hottest month (July), and a temperate month (April), respectively. For atopic dermatitis (negative control condition), the nonclustering regression model was selected by Akaike information criteria. For scabies (positive control condition), 1 cluster of 20 cases was detected (P =.03). Significant temporal clustering independent of seasonal variation occurred in our series of patients with pityriasis rosea. This may be indicative of an infectious cause.

  6. Atrophic pityriasis versicolor occurring in a patient with Sjögren's syndrome.

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    Marinello, Elena; Piaserico, Stefano; Alaibac, Mauro

    2017-01-18

    Pityriasis versicolor is one of the most frequent epidermal mycotic infections in the world, but its atrophic variant is rarely described. The aetiology of the atrophy is still unknown, and two main hypotheses have been formulated, one suggesting a correlation with long-term use of topical steroids and the other a delayed type hypersensitivity to epicutaneous antigens derived from components of the fungus. Atrophic pityriasis versicolor is a benign disease, but needs to be distinguished from other more severe skin diseases manifesting with cutaneous atrophy. The diagnosis can be easily confirmed by direct microscopic observation of the scales soaked in 15% potassium hydroxide, which reveals the typical 'spaghetti and meatball' appearance, or by a skin biopsy in doubtful cases. Here, we describe a case of extensive atrophic pityriasis versicolor occurring in a woman affected by Sjögren's syndrome which completely resolved after topical antifungal treatment. 2017 BMJ Publishing Group Ltd.

  7. Miliaria rubra of the lower limbs in underground miners.

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    Donoghue, A M; Sinclair, M J

    2000-08-01

    This report documents a case series of miliaria rubra of the lower limbs in miners at a deep underground metalliferous mine in tropical arid Australia. During the summer months of February and March 1999, all cases of miliaria rubra of the lower limbs in underground miners seen at the mine's medical centre were clinically examined and administered a questionnaire. Twenty-five patients were seen, an incidence of 56.4 cases per million man-hours. Miliaria rubra was most often located between the ankle and knee (88% of cases). Twenty-four percent had concurrent folliculitis and 20% had concurrent tinea. Thirty-two percent had a personal history of asthma. Walking through ground-water and splashing of the legs was common. Three to 4 weeks of sedentary duties in air conditioning was generally required to achieve resolution of miliaria rubra. The incidence of miliaria rubra of the lower limbs is 38% of the incidence of heat exhaustion at the same mine. The length of disablement is greater, however. Atopics may be at increased risk of miliaria rubra. Control measures are discussed.

  8. Fractional Carbon Dioxide Laser for Keratosis Pilaris: A Single-Blind, Randomized, Comparative Study

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    Vasanop Vachiramon

    2016-01-01

    Full Text Available Objective. Keratosis pilaris (KP is a common condition which can frequently be cosmetically disturbing. Topical treatments can be used with limited efficacy. The objective of this study is to evaluate the effectiveness and safety of fractional carbon dioxide (CO2 laser for the treatment of KP. Patients and Methods. A prospective, randomized, single-blinded, intraindividual comparative study was conducted on adult patients with KP. A single session of fractional CO2 laser was performed to one side of arm whereas the contralateral side served as control. Patients were scheduled for follow-up at 4 and 12 weeks after treatment. Clinical improvement was graded subjectively by blinded dermatologists. Patients rated treatment satisfaction at the end of the study. Results. Twenty patients completed the study. All patients stated that the laser treatment improved KP lesions. At 12-week follow-up, 30% of lesions on the laser-treated side had moderate to good improvement according to physicians’ global assessment (p=0.02. Keratotic papules and hyperpigmentation appeared to respond better than the erythematous component. Four patients with Fitzpatrick skin type V developed transient pigmentary alteration. Conclusions. Fractional CO2 laser treatment may be offered to patients with KP. Dark-skinned patients should be treated with special caution.

  9. Sebaceous Gland, Hair Shaft, and Epidermal Barrier Abnormalities in Keratosis Pilaris with and without Filaggrin Deficiency

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    Gruber, Robert; Sugarman, Jeffrey L.; Crumrine, Debra; Hupe, Melanie; Mauro, Theodora M.; Mauldin, Elizabeth A.; Thyssen, Jacob P.; Brandner, Johanna M.; Hennies, Hans-Christian; Schmuth, Matthias; Elias, Peter M.

    2016-01-01

    Although keratosis pilaris (KP) is common, its etiopathogenesis remains unknown. KP is associated clinically with ichthyosis vulgaris and atopic dermatitis and molecular genetically with filaggrin-null mutations. In 20 KP patients and 20 matched controls, we assessed the filaggrin and claudin 1 genotypes, the phenotypes by dermatoscopy, and the morphology by light and transmission electron microscopy. Thirty-five percent of KP patients displayed filaggrin mutations, demonstrating that filaggrin mutations only partially account for the KP phenotype. Major histologic and dermatoscopic findings of KP were hyperkeratosis, hypergranulosis, mild T helper cell type 1-dominant lymphocytic inflammation, plugging of follicular orifices, striking absence of sebaceous glands, and hair shaft abnormalities in KP lesions but not in unaffected skin sites. Changes in barrier function and abnormal paracellular permeability were found in both interfollicular and follicular stratum corneum of lesional KP, which correlated ultrastructurally with impaired extracellular lamellar bilayer maturation and organization. All these features were independent of filaggrin genotype. Moreover, ultrastructure of corneodesmosomes and tight junctions appeared normal, immunohistochemistry for claudin 1 showed no reduction in protein amounts, and molecular analysis of claudin 1 was unremarkable. Our findings suggest that absence of sebaceous glands is an early step in KP pathogenesis, resulting in downstream hair shaft and epithelial barrier abnormalities. PMID:25660180

  10. Pityriasis Rotunda: A Case Report of Familial Disease in an American-Born Black Patient

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    Emily G. Lefkowitz

    2016-03-01

    Full Text Available Pityriasis rotunda is an uncommon dermatosis with an unusual geographic and racial distribution. The skin disorder is characterized by sharply defined, perfectly circular, scaly patches with no inflammatory changes. Notably, it may be associated with underlying malignancy or chronic infection. We report an uncommon familial case in an American-born female.

  11. Pityriasis rosea (Gibert): abnormal distribution pattern of antigen presenting cells in situ

    NARCIS (Netherlands)

    Bos, J. D.; Huisman, P. M.; Krieg, S. R.; Faber, W. R.

    1985-01-01

    Pityriasis rosea is a skin disease which is obscure in its etiology and pathogenesis. We studied its immunopathology by immunophenotyping the inflammatory cells in situ using monoclonal antibodies that define leukocyte subsets. Findings as to T-cells and their major subsets did not reveal

  12. Identification and speciation of Malassezia in patients clinically suspected of having pityriasis versicolor

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    Avani Shah

    2013-01-01

    Full Text Available Background: Malassezia is a lipid-dependent yeast known to cause Pityriasis versicolor, a chronic, recurrent superficial infection of skin and present as hypopigmented or hyperpigmented lesions on areas of skin. If not diagnosed and treated, it may lead to disfigurement of the areas involved and also result in deep invasive infections. Aim: The aim of the present study was to identify and speciate Malassezia in patients clinically suspected of having Pityriasis versicolor. Materials and Methods: Total 139 patients suspected of having Pityriasis versicolor were evaluated clinically and diagnosis was done by Wood′s lamp examination, confirmed mycologically by using KOH, cultivation on Sabouraud′s dextrose agar and modified Dixon agar at a tertiary care hospital in Mumbai. The total duration of study was 12 months. Results: Majority of the patients were males (59.71% in the age group of 21-30 years (33.81% who were students (30.21% by profession. The incidence of Malassezia in Pityriasis versicolor was 50.35%. The most common isolate was M. globosa (48.57%, followed by M. furfur (34.28%. Majority of the patients had hypopigmented lesions, with M. globosa as the predominant isolate. Neck was the most common site affected; 88.48% were Wood′s lamp positive of which 56.91% of Malassezia isolates grew on culture. KOH mount was positive in 82.01% of which 61.40% Malassezia isolates grew on culture. Conclusions: The procedure of culture and antifungal testing is required to be performed as different species of Malassezia are involved in Pityriasis versicolor and susceptibility is different among different species. Thus, it would help to prevent recurrences and any systemic complications.

  13. Pityriasis Rosea: A rash that should be recognized by the primary care physician. Study of 30 cases

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    Igor López-Carrera

    2014-08-01

    Full Text Available Background: Pityriasis rosea is an acute disseminated rash of unknown etiology and prolonged duration, characterized by erythematous- squamous plaques. Despite having an ostentatious clinical picture for both the patient and family, it is self-limited and usually resolves without sequelae. Pityriasis rosea is often erroneously diagnosed as mycosis and given unnecessary treatment. Objective: To describe the clinical and demographical features of pity- riasis rosea in a group of Mexican pediatric patients. Patients and methods: Retrospective and descriptive study in which the clinical and demographic features of patients attended at the department of dermatology of the National Institute of Pediatrics with diagnosis of pityriasis rosea within a ten year period were analysed. Results: Thirty patients with pityriasis rosea, with a frequency of 3.6 per 1000 dermatological patients. Pityriasis rosea was more frequent in females with a ratio of 1.5 to 1 and a mean age of 10 years. More than half of the patients (56% had an atypical presentation, and biopsy was mandatory in 7 patients to establish the final diagnosis. Conclusions: The knowledge of the clinical features of pityriasis rosea by primary care physicians will prevent from unnecessary work-up and treatments.

  14. In vitro propagation of northern red oak (Quercus rubra L.)

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    G. Vengadesan; Paula M. Pijut

    2009-01-01

    In vitro propagation of northern red oak (Quercus rubra) shoots was successful from cotyledonary node explants excised from 8-wk-old in vitro grown seedlings. Initially, four shoots per explant were obtained on Murashige and Skoog (MS) medium supplemented with 4.4 µM 6-benzylaminopurine (BA), 0.45 ...

  15. Comparative study of oral and topical ketoconazole therapy in pityriasis versicolor

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    Nagpal V

    2003-07-01

    Full Text Available Introduction: Both topical and systemic ketoconazole are reported to be effective against pityriasis versicolor. Material and Methods: Forty patients suffering from pityriasis versicolor were treated either with oral ketoconazole 200 mg per day or 2% ketoconazole cream topically once daily for 2 weeks. Results: On global assessment, after 2 weeks of start of therapy, 18 (90% out of 20 patients treated with oral ketoconazole were cured while 2 patients had considerable residual disease. In the ketoconazole cream group, 16 (80% out of 20 patients were cured and 4 patients had considerable residual disease. Conclusion: No significant difference was observed in the response rates in the two groups. Relapse occurred in two patients of the systemic ketoconazole group and six patients of the topical ketoconazole group during the follow-up period of three months.

  16. Prevalence of different Malassezia species in pityriasis versicolor in central India

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    Chaudhary Rahul

    2010-01-01

    Full Text Available Background: In the last 10 years, different studies have shown interesting geographical variations in the prevalence of different Malassezia species in pityriasis versicolor. Aim: Identification of Malassezia species isolated from patients with pityriasis versicolor. Methods: In 100 patients with pityriasis versicolor, Malassezia species were identified by culture in Sabouraud′s dextrose agar containing cycloheximide with olive oil overlay and modified Dixon agar and by doing biochemical tests (catalase reaction, assimilation of glycine, and Tween utilisation tests. Results: In 10 patients, 10% KOH smear was negative, while in 90 patients the smear showed characteristic "spaghetti and meatball" appearance. Of these 90 cases, growth was obtained on modified Dixon′s agar in 87 cases. Fifty of the isolates (57.5% were M. globosa, 15 (17.2% were M. sympodialis, seven (8.0% were suspected M. sympodialis, 6 (6.9% each of the isolates were M. furfur and M. obtusa, and three (3.4% isolates were M. restricta. Conclusion: M. globosa was the most common species, followed by M. sympodialis, M. furfur, M. obtusa, and M. restricta.

  17. Prevalence of different Malassezia species in pityriasis versicolor in central India.

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    Chaudhary, Rahul; Singh, Sanjay; Banerjee, Tuhina; Tilak, Ragini

    2010-01-01

    In the last 10 years, different studies have shown interesting geographical variations in the prevalence of different Malassezia species in pityriasis versicolor. Identification of Malassezia species isolated from patients with pityriasis versicolor. In 100 patients with pityriasis versicolor, Malassezia species were identified by culture in Sabouraud's dextrose agar containing cycloheximide with olive oil overlay and modified Dixon agar and by doing biochemical tests (catalase reaction, assimilation of glycine, and Tween utilisation tests). In 10 patients, 10% KOH smear was negative, while in 90 patients the smear showed characteristic "spaghetti and meatball" appearance. Of these 90 cases, growth was obtained on modified Dixon's agar in 87 cases. Fifty of the isolates (57.5%) were M. globosa, 15 (17.2%) were M. sympodialis, seven (8.0%) were suspected M. sympodialis, 6 (6.9%) each of the isolates were M. furfur and M. obtusa, and three (3.4%) isolates were M. restricta. M. globosa was the most common species, followed by M. sympodialis, M. furfur, M. obtusa, and M. restricta.

  18. Study of the distribution of Malassezia species in patients with pityriasis versicolor and healthy individuals in Tehran, Iran

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    Zeraati Hojjat

    2004-05-01

    Full Text Available Abstract Background Pityriasis versicolor is a superficial infection of the stratum corneum which caused by a group of yeasts formerly named pityrosporium. The taxonomy of these lipophilic yeasts has recently been modified and includes seven species referred as Malassezia. The aim of this study is to compare the distribution of Malassezia species isolated from pityriasis versicolor lesions and those isolated from healthy skins. Methods Differentiation of all malassezia species performed using morphological features and physiological test including catalase reaction, Tween assimilation test and splitting of esculin. Results In pityriasis versicolor lesions, the most frequently isolated species was M. globosa (53.3%, followed by M. furfur (25.3%, M. sympodialis(9.3%, M. obtusa (8.1% and M. slooffiae (4.0%. The most frequently isolated species in the skin of healthy individuals were M. globosa, M. sympodialis, M. furfur, M. sloofiae and M. restricta which respectively made up 41.7%, 25.0%, 23.3%, 6.7% and 3.3% of the isolated species. Conclusions According to our data, M. globosa was the most prevalent species in the skin of healthy individuals which recovered only in the yeast form. However, the Mycelial form of M. globosa was isolated as the dominant species from pityriasis versicolor lesions. Therefore, the role of predisposing factors in the conversion of this yeast to mycelium and its subsequent involvement in pityriasis versicolor pathogenicity should be considered.

  19. Evaluation of various therapeutic measures in striae rubra

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    Umesh Karsandas Karia

    2016-01-01

    Full Text Available Background: Striae are linear atrophic depressions that form in areas of dermal damage in the skin. As on date, no consensus or protocol exists for the treatment of stria rubra. Topical retinoids, chemical peels, microdermabrasion, radiofrequency, photothermolysis, intense pulsed light and lasers are some of the modalities used. Aims and Objective: To compare the efficacy of various therapeutic modalities in striae rubra. Methods: This prospective cohort study comprised of a total of fifty patients from August-2012 to October-2013 in a tertiary care center in Western India, Gujarat having striae rubra. They were randomly divided into five groups of ten patients each. Patients were evaluated on the basis of visual assessment, both by doctor as well as the patient. Group I was given topical tretinoin (0.1% w/w gel applied once at night, Group II-microdermabrasion (MDA combined with trichloroacetic acid (TCA (30% peel, Group III-mesotherapy, Group IV-Q-switched Nd: YAG laser, and Group V-combination treatment of microdermabrasion, salicylic acid peel and retinol (yellow peel. Patients were treated at an interval of 15 days for 2 months and then at monthly intervals. Objective assessment was done at 2nd month, 6th month, and at the end of 1st year. Results: Patients in Group I treated with topical tretinoin showed the least response with 80% (8 of them showing minimal clinical improvement (0–25% as compared to patients in Group V in which 60% (6 patients showed moderate clinical improvement (50–75%. While majority of the patients in Group II, III, and IV showed mild clinical improvement (25–50%. Conclusions: Striae rubra is a common cause of concern for adolescent population. Combination treatment with microdermabrasion, salicylic acid and retinol yellow peel gave superior results as compared to other therapeutic options. Mild to moderate improvement was seen with Nd: YAG laser, mesotherapy and MDA + TCA whereas minimal improvement were seen

  20. Evaluation of Various Therapeutic Measures in Striae Rubra

    Science.gov (United States)

    Karia, Umesh Karsandas; Padhiar, Bela Bhemabhai; Shah, Bela Jaswantbhai

    2016-01-01

    Background: Striae are linear atrophic depressions that form in areas of dermal damage in the skin. As on date, no consensus or protocol exists for the treatment of stria rubra. Topical retinoids, chemical peels, microdermabrasion, radiofrequency, photothermolysis, intense pulsed light and lasers are some of the modalities used. Aims and Objective: To compare the efficacy of various therapeutic modalities in striae rubra. Methods: This prospective cohort study comprised of a total of fifty patients from August-2012 to October-2013 in a tertiary care center in Western India, Gujarat having striae rubra. They were randomly divided into five groups of ten patients each. Patients were evaluated on the basis of visual assessment, both by doctor as well as the patient. Group I was given topical tretinoin (0.1% w/w) gel applied once at night, Group II-microdermabrasion (MDA) combined with trichloroacetic acid (TCA) (30%) peel, Group III-mesotherapy, Group IV-Q-switched Nd: YAG laser, and Group V-combination treatment of microdermabrasion, salicylic acid peel and retinol (yellow) peel. Patients were treated at an interval of 15 days for 2 months and then at monthly intervals. Objective assessment was done at 2nd month, 6th month, and at the end of 1st year. Results: Patients in Group I treated with topical tretinoin showed the least response with 80% (8) of them showing minimal clinical improvement (0–25%) as compared to patients in Group V in which 60% (6) patients showed moderate clinical improvement (50–75%). While majority of the patients in Group II, III, and IV showed mild clinical improvement (25–50%). Conclusions: Striae rubra is a common cause of concern for adolescent population. Combination treatment with microdermabrasion, salicylic acid and retinol yellow peel gave superior results as compared to other therapeutic options. Mild to moderate improvement was seen with Nd: YAG laser, mesotherapy and MDA + TCA whereas minimal improvement were seen with

  1. Co-occurrence of erythrosis pigmentosa mediofacialis and erythromelanosis follicularis faciei et colli associated with keratosis pilaris in an adolescent female

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    Sarita Kalwaniya

    2016-01-01

    Full Text Available Erythromelanosis follicularis faciei et colli (EFFC is a rare disease characterized by a triad of reddish-brown pigmentation, erythema and follicular papules localized on face and neck and is usually described in males. Erythrosis pigmentosa mediofacialis (also known as Brocq or erythrosis pigmentosa peribuccalis is a similar disorder of the mediofacial area but with female predominance. We report a case of simultaneous occurrence of erythrosis pigmentosa peribuccalis and EFFC associated with keratosis pilaris in an adolescent female.

  2. Pityriasis rosea is associated with systemic active infection with both human herpesvirus-7 and human herpesvirus-6.

    Science.gov (United States)

    Watanabe, Takahiro; Kawamura, Tatsuyoshi; Jacob, Sharon E; Aquilino, Elisabeth A; Orenstein, Jan M; Black, Jodi B; Blauvelt, Andrew

    2002-10-01

    Pityriasis rosea is a common skin disease that has been suspected to have a viral etiology. We performed nested polymerase chain reaction to detect human herpesvirus-7, human herpesvirus-6, and cytomegalovirus DNA in lesional skin, nonlesional skin, peripheral blood mononuclear cells, serum, and saliva samples isolated from 14 pityriasis rosea patients. Viral mRNA expression and virion visualization within lesional skin were studied by in situ hybridization and transmission electron microscopy, respectively. By nested polymerase chain reaction, human herpesvirus-7 DNA was present in lesional skin (93%), nonlesional skin (86%), saliva (100%), peripheral blood mononuclear cells (83%), and serum (100%) samples, whereas human herpesvirus-6 DNA was detected in lesional skin (86%), nonlesional skin (79%), saliva (80%), peripheral blood mononuclear cells (83%), and serum (88%) samples. By contrast, cytomegalovirus DNA was not detected in these tissues. Control samples from 12 healthy volunteers and 10 psoriasis patients demonstrated rare positivity for either human herpesvirus-7 or human herpesvirus-6 DNA in skin or serum. By in situ hybridization, infiltrating mononuclear cells expressing human herpesvirus-7 and human herpesvirus-6 mRNA were identified in perivascular and periappendageal areas in 100% and 75% pityriasis rosea skin lesions, respectively, compared to herpesviral mRNA positivity in only 13% normal skin and psoriasis skin controls. Transmission electron microscopy failed to reveal herpesviral virions in pityriasis rosea lesional skin. Nested polymerase chain reaction and in situ hybridization enabled detection of human herpesvirus-7 and human herpesvirus-6 in skin and other tissues isolated from patients with pityriasis rosea. These results suggest that pityriasis rosea is associated with systemic active infection with both human herpesvirus-7 and human herpesvirus-6.

  3. Comparative study of ketoconazole versus selenium sulphide shampoo in pityriasis versicolor

    Directory of Open Access Journals (Sweden)

    Aggarwal K

    2003-03-01

    Full Text Available Forty patients suffering from pityriasis versicolor were treated with either 2% ketoconazole shampoo (20 patients or 2.5% selenium sulphide shampoo (20 patients, once a week for three weeks. On global assessment after one month of start of therapy, 19 (95% out of 20 patients treated with ketoconazole shampoo were cured while one case had mild residual disease. In selenium sulphide shampoo group, 17 (85% out of 20 patients were cured, one had mild residual disease and two had considerable residual disease. No significant difference was observed in the response rates in the two groups. Relapse occurred in one patient of ketoconazole group and two patients of selenium sulphide group during the follow - up period of three months.

  4. Gustatory perception and metabolic utilization of sugars by Myrmica rubra ant workers

    NARCIS (Netherlands)

    Boevé, J-L.; Wäckers, F.L.

    2003-01-01

    The suitability of various nectar and honeydew sugars as a food source for the polyphagous ant species M. rubra (L.) was studied. The sugars used included monosaccharides (fructose, glucose, galactose, mannose, rhamnose), disaccharides (sucrose, maltose, trehalose, melibiose, lactose) and

  5. Detection of Malassezia Species Isolated From Patients With Pityriasis Versicolor and Seborrheic Dermatitis Using Nested-PCR

    Directory of Open Access Journals (Sweden)

    Zarei Mahmoudabadi

    2014-12-01

    Full Text Available Background The species of the genus Malassezia are lipophilic and dimorphic yeasts that are regarded as part of the normal flora of the skin of humans and warm-blooded animals. These organisms are the cause of superficial mycosis in humans and other animals, and are common in pityriasis versicolor and seborrheic dermatitis. Objectives The purpose of this study was to determine the frequency of common Malassezia species in patients affected by pityriasis versicolor and seborrheic dermatitis using of the nested PCR method, in the city of Ahvaz. Patients and Methods In the present study, 85 samples from patients with pityriasis versicolor and seborrheic dermatitis were analyzed by the nested-PCR method. During the first stage, the internal transcribed spacer (ITS region from the ribosomal DNA was reproduced using primers ITS4-R and ITS1F-N. During the second stage, the product of the first step was used as DNA and using three special primer pairs, including Mf-F, 5.8SR and M.gl-F, 5.8SR and M.rt-F and M.rt-R, the inner part of the first phase was detected. Results The most common isolate was Malassezia furfur (51.3% followed by M. globosa (35.2% and M. restricta (13.5%. Amongst the 30 patients with seborrheic dermatitis, in 15 cases (65.2% M. restricta, in six cases (26.1% M. globosa and in two cases (8.7% M. furfur was detected and in seven patients no isolate was detected. Conclusions The nested-PCR is a rapid and repeatable method for identification of important Malassezia species and this method is recommended for use on more patients. In addition the most common agents of pityriasis versicolor and seborrheic dermatitis were M. furfur and M. restricta, respectively.

  6. EFFECT OF VARIOUS GROWING MEDIA AND FERTILIZER LEVELS ON GROWTH OF Antherura Rubra Lour

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    Fitri Kurniawati

    2016-06-01

    Full Text Available Antherura rubra Lour is one of the critical plant at Cibodas Botanical Garden. Study of cultivation through vegetative propagation of A. Rubra is rare. Therefore, the research of A. rubra on various of media and inorganic fertilizers is required to conserve A.rubra at Cibodas Botanical Garden. This study was conducted at the Nursery - Cibodas Botanic Garden for 10 months. The experiment was conducted in randomized block design (RBD with four replications. Treatments consisted of three combinations of natural compost media with three levels of inorganic fertilizer (0, 1g/L, and 2g/L, three katalek compost combination with three levels of inorganic fertilizer and a control (top soil without inorganic fertilizers. Variable tested consists of plant height, number of leaves, and dry weight shoot and root as an indicator of growth A. rubra Lour The results showed that the growth of seedlings A. rubra Lour on katalek compost media's with one dose of levels inorganic fertilizer growth better than other treatments.

  7. Pityriasis Rosea

    Science.gov (United States)

    ... Registration General information Housing & travel Education Exhibit hall Mobile app 2019 Annual Meeting Derm Exam Prep Course ... SkinPAC State societies Scope of practice Truth in advertising NP/PA laws Action center Public and patients ...

  8. PITYRIASIS ROSEA

    African Journals Online (AJOL)

    disease of world-wide distribution. ... cases are seen, the world over, during the colder months of the year. Apart from ... also times when case incidence reaches proportions deserving ..... is sown with eosinophilic hyaline bodie , the remain of.

  9. The mitochondrial genomes of the acoelomorph worms Paratomella rubra, Isodiametra pulchra and Archaphanostoma ylvae.

    Science.gov (United States)

    Robertson, Helen E; Lapraz, François; Egger, Bernhard; Telford, Maximilian J; Schiffer, Philipp H

    2017-05-12

    Acoels are small, ubiquitous - but understudied - marine worms with a very simple body plan. Their internal phylogeny is still not fully resolved, and the position of their proposed phylum Xenacoelomorpha remains debated. Here we describe mitochondrial genome sequences from the acoels Paratomella rubra and Isodiametra pulchra, and the complete mitochondrial genome of the acoel Archaphanostoma ylvae. The P. rubra and A. ylvae sequences are typical for metazoans in size and gene content. The larger I. pulchra  mitochondrial genome contains both ribosomal genes, 21 tRNAs, but only 11 protein-coding genes. We find evidence suggesting a duplicated sequence in the I. pulchra mitochondrial genome. The P. rubra, I. pulchra and A. ylvae mitochondria have a unique genome organisation in comparison to other metazoan mitochondrial genomes. We found a large degree of protein-coding gene and tRNA overlap with little non-coding sequence in the compact P. rubra genome. Conversely, the A. ylvae and I. pulchra genomes have many long non-coding sequences between genes, likely driving genome size expansion in the latter. Phylogenetic trees inferred from mitochondrial genes retrieve Xenacoelomorpha as an early branching taxon in the deuterostomes. Sequence divergence analysis between P. rubra sampled in England and Spain indicates cryptic diversity.

  10. Higher Expression of Toll-like Receptors 3, 7, 8, and 9 in Pityriasis Rosea

    Directory of Open Access Journals (Sweden)

    Mostafa Abou El-Ela

    2017-03-01

    Full Text Available Background Pityriasis rosea (PR is a common papulosquamous skin disease in which an infective agent may be implicated. Toll-like receptors (TLRs play an important role in immune responses and in the pathophysiology of inflammatory skin diseases. Our aim was to determine the possible roles of TLRs 3, 7, 8, and 9 in the pathogenesis of PR. Methods Twenty-four PR patients and 24 healthy individuals (as controls were included in this case control study. All recruits were subjected to routine laboratory investigations. Biopsies were obtained from one active PR lesion and from healthy skin of controls for the detection of TLR 3, 7, 8, and 9 gene expression using real-time polymerase chain reaction. Results This study included 24 patients (8 females and 16 males with active PR lesions, with a mean age of 28.62 years. Twenty four healthy age- and sex-matched individuals were included as controls (8 females and 16 males, with a mean age of 30.83 years. The results of the routine laboratory tests revealed no significant differences between both groups. Significantly elevated expression of all studied TLRs were detected in PR patients relative to healthy controls (p < .001. Conclusions TLRs 3, 7, 8, and 9 might be involved in the pathogenesis of PR.

  11. The Role of Cytokines, Chemokines, and Growth Factors in the Pathogenesis of Pityriasis Rosea

    Directory of Open Access Journals (Sweden)

    Francesco Drago

    2015-01-01

    Full Text Available Introduction. Pityriasis rosea (PR is an exanthematous disease related to human herpesvirus- (HHV- 6/7 reactivation. The network of mediators involved in recruiting the infiltrating inflammatory cells has never been studied. Object. To investigate the levels of serum cytokines, growth factors, and chemokines in PR and healthy controls in order to elucidate the PR pathogenesis. Materials and Methods. Interleukin- (IL- 1, IL-6, IL-17, interferon- (IFN- γ, tumor necrosis factor- (TNF- α, vascular endothelial growth factor (VEGF, granulocyte colony stimulating factor (G-CSF, and chemokines, CXCL8 (IL-8 and CXCL10 (IP-10, were measured simultaneously by a multiplex assay in early acute PR patients’ sera and healthy controls. Subsequently, sera from PR patients were analysed at 3 different times (0, 15, and 30 days. Results and discussion. Serum levels of IL-17, IFN-γ, VEGF, and IP-10 resulted to be upregulated in PR patients compared to controls. IL-17 has a key role in host defense against pathogens stimulating the release of proinflammatory cytokines/chemokines. IFN-γ has a direct antiviral activity promoting NK cells and virus specific T cells cytotoxicity. VEGF stimulates vasculogenesis and angiogenesis. IP-10 can induce chemotaxis, apoptosis, cell growth, and angiogenesis. Conclusions. Our findings suggest that these inflammatory mediators may modulate PR pathogenesis in synergistic manner.

  12. Genetic differentiation between the ant Myrmica rubra and its microgynous social parasite

    DEFF Research Database (Denmark)

    Vepsäläinen, K.; Ebsen, J. R.; Savolainen, R.

    2009-01-01

    Hymenopteran inquiline species have been proposed to originate by sympatric speciation through intraspecific social parasitism. One such parasite, Myrmica microrubra, was recently synonymized with its Myrmica rubra host, because comparisons across Europe indicated insufficient genetic differentia......Hymenopteran inquiline species have been proposed to originate by sympatric speciation through intraspecific social parasitism. One such parasite, Myrmica microrubra, was recently synonymized with its Myrmica rubra host, because comparisons across Europe indicated insufficient genetic...... differentiation. Here, we use microsatellite markers to study genetic differentiation more precisely in a sample of Finnish M. rubra and its inquilines collected at two localities, supplemented with mitochondrial DNA sequences. The parasite had much lower genetic variation than the host at three of the four loci...

  13. Removal of acorns of the alien oak Quercus rubra on the ground by scatter-hoarding animals in Belgian forests

    Directory of Open Access Journals (Sweden)

    Merceron, NR.

    2017-01-01

    Full Text Available Description of the subject. Quercus rubra L. is considered an invasive species in several European countries. However, little is known about its dispersal in the introduced range. Objectives. We investigated the significance of animal dispersal of Q. rubra acorns on the ground by vertebrates in its introduced range, and identified the animal species involved. Method. During two consecutive autumns, the removal of acorns from Q. rubra and from a native oak was assessed weekly in forest sites in Belgium. We used automated detection camera traps to identify the animals that removed acorns. Results. Quercus rubra acorns were removed by wood mice (Apodemus sylvaticus L., red squirrels (Sciurus vulgaris L., rats (Rattus sp., and wild boars (Sus scrofa L.. The two former are scatter-hoarding rodents and can be considered potential dispersers. Conclusions. Dispersal of Q. rubra acorns in Western Europe by scatter-hoarding animals may help the species increasingly colonize forest ecosystems.

  14. The Role of Biopsy in Pediatric Dermatopathology

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    Fatma Şule Afşa

    2011-09-01

    Full Text Available Background and Design: Pediatric dermatology is characterized by skin disorders which have frequencies different from those in adults. Skin biopsies are necessary for differential diagnosis and clinicopathologic correlation is very important. The aim of this study was to evaluate retrospectively the pediatric dermatology cases in whom biopsy was performed for differential diagnosis and to investigate the contribution of biopsy to diagnosis of skin disorders. Material and Methods: The cases from whom biopsy was taken in the pediatric dermatology clinic during a three-year period were evaluated retrospectively for pre-diagnoses, biopsy diagnoses, and success of biopsies.Results: Two hundred thirteen (1.7% skin biopsies had been taken from a total of 12420 patients. Henoch-Schönlein purpura, psoriasis, pityriasis lichenoides, pityriasis rosea, lichen planus, pityriasis rubra pilaris, erythema multiforme, atopic dermatitis, granuloma annulare, and pigmented purpuric dermatosis were the most frequent skin disorders diagnosed dermatopathologically. In a total of 120 (56.3% cases, the biopsy diagnosis was within the pre-diagnosis and a biopsy consistency was present. In 25 (11.7% cases, biopsy had no contribution to the differential diagnosis. An absolutely different diagnosis which was incompatible with the pre-diagnosis had been reported in 10 (4.6% cases. Conclusion: In pediatric dermatology, skin biopsy is very helpful for the differential diagnosis. An easy biopsy procedure for the patient, an effective designation of biopsy indication, a good dermatopathologic correlation and an experienced team of pediatric dermatopathology increase the success of skin biopsies.

  15. Acute generalized exanthematous pustulosis and polyarthritis associated with a novel CARD14 mutation.

    Science.gov (United States)

    Podlipnik, Sebastian; Castellanos-Moreira, Raul; Florez-Enrich, Helena; Arostegui, Juan Ignacio; Mascaró, José Manuel

    2018-02-01

    Acute generalised exanthematous pustulosis (AGEP) is a rare toxicoderma characterised by an acute onset rash, with many sterile pustules on the surface, high fever and increased acute phase reactants. We report the case of a patient who presented to the dermatology department with an AGEP and polyarthritis, in which a novel CARD14 mutation was identified. The pathophysiological mechanism of AGEP remains unclear, although mutations in the IL36RN gene have been identified in a small subset of AGEP patients. Similarly, mutations in the CARD14 gene have been linked to pustular types of psoriasis and familiar cases of pityriasis rubra pilaris; however, there are no reports associating mutations in the CARD14 gene with AGEP. © 2017 The Australasian College of Dermatologists.

  16. Meningitis caused by Rhodotorula rubra in an human immunodeficiency virus infected patient

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    Thakur K

    2007-01-01

    Full Text Available Rhodotorula spp . are common saprophytes but may be responsible for systemic infections in immunocompromised patients. Meningitis caused by Rhodotorula spp. in human immunodeficiency virus (HIV infected patients has been reported only rarely. We present a case of meningitis caused by Rhodotorula rubra in HIV infected patient. The presumptive diagnosis of cryptococcal meningitis was made on the basis of India ink preparation, Gram staining and latex agglutination test (LAT for cryptococcal antigen. The final diagnosis was confirmed by isolation of Rhodotorula rubra from cerebrospinal fluid on culture. LAT was considered false positive. Amphotericin B and 5-fluorocytosine were administered but the patient succumbed to his illness.

  17. Application of near-infrared spectroscopy for the rapid quality assessment of Radix Paeoniae Rubra

    Science.gov (United States)

    Zhan, Hao; Fang, Jing; Tang, Liying; Yang, Hongjun; Li, Hua; Wang, Zhuju; Yang, Bin; Wu, Hongwei; Fu, Meihong

    2017-08-01

    Near-infrared (NIR) spectroscopy with multivariate analysis was used to quantify gallic acid, catechin, albiflorin, and paeoniflorin in Radix Paeoniae Rubra, and the feasibility to classify the samples originating from different areas was investigated. A new high-performance liquid chromatography method was developed and validated to analyze gallic acid, catechin, albiflorin, and paeoniflorin in Radix Paeoniae Rubra as the reference. Partial least squares (PLS), principal component regression (PCR), and stepwise multivariate linear regression (SMLR) were performed to calibrate the regression model. Different data pretreatments such as derivatives (1st and 2nd), multiplicative scatter correction, standard normal variate, Savitzky-Golay filter, and Norris derivative filter were applied to remove the systematic errors. The performance of the model was evaluated according to the root mean square of calibration (RMSEC), root mean square error of prediction (RMSEP), root mean square error of cross-validation (RMSECV), and correlation coefficient (r). The results show that compared to PCR and SMLR, PLS had a lower RMSEC, RMSECV, and RMSEP and higher r for all the four analytes. PLS coupled with proper pretreatments showed good performance in both the fitting and predicting results. Furthermore, the original areas of Radix Paeoniae Rubra samples were partly distinguished by principal component analysis. This study shows that NIR with PLS is a reliable, inexpensive, and rapid tool for the quality assessment of Radix Paeoniae Rubra.

  18. An analysis of phenotypic selection in natural stands of northern red oak (Quercus rubra L.)

    Science.gov (United States)

    Jeffery W. Stringer; David B. Wagner; Scott E. Schlarbaum; Daniel B. Houston

    1995-01-01

    Comparison of growth and stem quality parameters of 19-year-old progeny from superior and comparison trees indicates that rigorous phenotypic selection of trees in natural stands may not be an efficient method of parent tree selection for Quercus rubra L. Total tree height, dbh, number of branches in the butt log, fork height, and number of mainstem...

  19. Regeneration of red oak (Quercus rubra L.) using shelterwood systems: Ecophysiology, silviculture and management recommendations

    Science.gov (United States)

    Daniel C. Dey; William C. parker

    1996-01-01

    There is considerable interest in developing relaible methods for regenerating red oak (Quercus rubra) in Ontario. Traditional silviculture methods have not been successful in maintaining the curent levels of oak growing stock. In this paper, we review the ecology, physiology and reproductive biology of red oak. This discussion stresses the...

  20. On merging Acer sections Rubra and Hyptiocarpa: Molecular and morphological evidence.

    Science.gov (United States)

    Harris, A J; Chen, Yousheng; Olsen, Richard T; Lutz, Sue; Wen, Jun

    2017-01-01

    In this study, we expanded Acer sect. Rubra Pax to include A. sect. Hyptiocarpa Fang. Traditionally, section Rubra comprises two iconic species, Acer rubrum Linnaeus (red maple) and A. saccharinum Linnaeus (silver maple), of eastern North American forests as well as the rare Japanese montane species, A. pycnanthum K. Koch. Section Hyptiocarpa consists of A. laurinum Hasskarl and A. pinnatinervium Merrill, which occur in subtropical and tropical regions of southwestern China to southeast Asia. Here, we confirm prior phylogenetic results showing the close relationship between sects. Rubra and Hyptiocarpa , and we use scanning electron microscopy to demonstrate that leaves of species within these sections have similar arrangements of cuticular waxes, which account for the silvery color of their abaxial surfaces. We describe that the sections also share labile sex expression; inflorescences that range from compound racemose thyrses, to racemes or umbels and that may have undergone evolutionary reduction; and several features of their fruits, such as seed locules without keels, basal portion of wings straight, acute attachment angle between mericarps, and production of some mericarps that are seedless and partially developed at maturity. Our expansion of sect. Rubra to include sect. Hyptiocarpa better elucidates the biogeographic and evolutionary history of these species. Additionally, we show that A. laurinum and A. pinnatinervium have intergrading morphology and are probably synonymous, but we note that further studies are required to conclude their taxonomic status.

  1. Studies upon morhological and biological traits of Festuca rubra, subsp.fallax (Poaceae

    Directory of Open Access Journals (Sweden)

    Bogusław Sawicki

    2013-12-01

    Full Text Available Observation and measurements of some traits of Festuca rubra L., subsp. fallax (Thuill. Hack. ecotypes were made in 1995-1997 using samples selected from natural habitats and collected in Grassland Experimental Station in Sosnowica. High differentiation of traits under study and their correlations were found. Valorized ecotypes are good material for new varieties breeding.

  2. Phenology, dichogamy, and floral synchronization in a northern red oak (Quercus rubra) seed orchard

    Science.gov (United States)

    Lisa W. Alexander; Keith E. Woeste

    2016-01-01

    We developed a novel scoring system to assess spring phenology in a northern red oak (Quercus rubra L.) clonal seed orchard. The system was used to score from 304 to 364 ramets for three reproductive seasons and to place clones into early, intermediate, and late phenology classes. Although the absolute number of clones in each phenological class...

  3. 15-demethylisoplumieride acid, a new iridoid isolated from the bark of Plumeria rubra and latex of Himatanthus sucuuba; Acido 15-desmetilisoplumierideo, um novo iridoide isolado das cascas de Plumeria rubra e do latex de Himatanthus sucuuba

    Energy Technology Data Exchange (ETDEWEB)

    Barreto, Alaide de Sa; Amaral, Ana Claudia F. [Fundacao Inst. Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, RJ (Brazil). Instituto de Tecnologia em Farmacos -Farmanguinhos. Lab. de Plantas Medicinais e Derivados; Silva, Jefferson Rocha de A. [Universidade Federal do Amazonas, Manaus, AM (Brazil). Dept. de Quimica]. E-mail: jrocha_01@ufam.edu.br; Schripsema, Jan [Universidade Estadual do Norte Fluminense (UENF), Campos dos Goytacazes, RJ (Brazil). Setor de Quimica de Produtos Naturais; Rezende, Claudia M.; Pinto, Angelo C. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Inst. de Quimica

    2007-09-15

    Himatanthus sucuuba and Plumeria rubra are used in folk medicine in Brazil to treat various ailments. The isolation of the new iridoid 15-demethylisoplumieride from the bark of Plumeria rubra L. var. acutifolia (Ait) Woodson and latex of Himatanthus sucuuba (Spruce) Woodson is reported. Other iridoid glycosides were obtained from both plants. The structures of these substances were elucidated by spectral analysis and comparison with data already reported. (author)

  4. Novos aspectos na evolução clínica da pitiríase versicolor New aspects in the clinical course of pityriasis versicolor

    Directory of Open Access Journals (Sweden)

    Valéria Maria de Souza Framil

    2011-12-01

    Full Text Available FUNDAMENTO: A pitiríase versicolor é uma doença infecciosa causada por várias espécies de Malassezia com uma tendência a se tornar recidivante ou crônica. OBJETIVOS: Este trabalho foi conduzido na tentativa de conhecer a evolução clínica da pitiríase versicolor em relação ao número de recidivas após um tratamento adequado no período de 12 meses e correlacionar o número de recidivas com as espécies de Malassezia isoladas. MATERIAL E MÉTODOS: Cento e dois pacientes com diagnóstico clínico e laboratorial de pitiríase versicolor foram acompanhados por um período de 12 meses para observarmos o número de recidivas da doença. RESULTADOS: A pitiríase versicolor, após um tratamento adequado, apresentou três tipos de evolução clínica num período de 12 meses: pitiríase versicolor sem nenhum episódio de recidiva (32,35%; pitiríase versicolor recidivante, com um a quatro episódios de recidiva (52,94% devidos a fatores de predisposição relacionados; e pitiríase versicolor crônica, com mais de quatro episódios de recidiva (14,70% sem nenhuma relação com fatores de predisposição. CONCLUSÕES: A pitiríase versicolor apresentou uma evolução clínica de acordo com o número de episódios de recidiva da doença analisados durante um período de 12 meses que pode ser considerada da seguinte maneira: pitiríase versicolor com cura clínica e micológica, pitiríase versicolor recidivante e pitiríase versicolor crônica.BACKGROUND: Pytiriasis versicolor is an infectious disease caused by several Malassezia species which has a tendency to become relapsing or chronic. OBJECTIVES: This study was conducted in an attempt to investigate the clinical course of pityriasis versicolor with regard to the number of relapses after a 12-month therapy and correlate this number with isolates of Malassezia species. MATERIAL AND METHODS: 102 patients with clinical and laboratory diagnosis of pityriasis versicolor were monitored for 12

  5. Essential Oil from Myrica rubra Leaves Potentiated Antiproliferative and Prooxidative Effect of Doxorubicin and its Accumulation in Intestinal Cancer Cells

    Czech Academy of Sciences Publication Activity Database

    Ambrož, M.; Hanušová, V.; Skarka, A.; Boušová, I.; Králová, V.; Langhansová, Lenka; Skálová, L.

    2016-01-01

    Roč. 82, 1/2 (2016), s. 89-96 ISSN 0032-0943 Institutional support: RVO:61389030 Keywords : Myrica rubra * Myricaceae * cytotoxicity Subject RIV: FR - Pharmacology ; Medidal Chemistry Impact factor: 2.342, year: 2016

  6. Combination of 595-nm pulsed dye laser, long-pulsed 755-nm alexandrite laser, and microdermabrasion treatment for keratosis pilaris: retrospective analysis of 26 Korean patients.

    Science.gov (United States)

    Lee, Sang Ju; Choi, Min Ju; Zheng, Zhenlong; Chung, Won Soon; Kim, Young Koo; Cho, Sung Bin

    2013-06-01

    Keratosis pilaris (KP) has beenpresented as small keratotic follicular papules with or without surrounding erythema. Various treatments with laser or light therapy have been used for the management of KP with various clinical outcomes. In the present study, we investigated the efficacy and safety of a combination therapy for KP. A total of 29 anatomical sites with KP in 26 patients were treated using a 595-nm pulsed dye laser (PDL) with nonpurpuragenic fluences, a long-pulsed 755-nm alexandrite laser, and microdermabrasion. Clinical improvement was assessed by comparing preand posttreatment clinical photographs and patient satisfaction rates. Evaluation of the clinical results three months after the treatments showed that 12 of the 29 anatomical sites (41.4%) demonstrated Grade 3 clinical improvement, ten (34.5%) had Grade 2 clinical improvement, four (13.8%) showed Grade 1 improvement, and three (10.3%) showed Grade 4 improvement. We observed that KP lesions improved not only in erythema and skin texture, but also in brownish dyschromias. Potential adverse events were not observed, except prolonged posttherapy scaling. Our observations demonstrate that combination therapy using a 595-nm PDL, a long-pulsed 755-nm alexandrite laser, and microdermabrasion can have a positive therapeutic effect on KP.

  7. Intraspecific Variation in Maximum Ingested Food Size and Body Mass in Varecia rubra and Propithecus coquereli

    Directory of Open Access Journals (Sweden)

    Adam Hartstone-Rose

    2011-01-01

    Full Text Available In a recent study, we quantified the scaling of ingested food size (Vb—the maximum size at which an animal consistently ingests food whole—and found that Vb scaled isometrically between species of captive strepsirrhines. The current study examines the relationship between Vb and body size within species with a focus on the frugivorous Varecia rubra and the folivorous Propithecus coquereli. We found no overlap in Vb between the species (all V. rubra ingested larger pieces of food relative to those eaten by P. coquereli, and least-squares regression of Vb and three different measures of body mass showed no scaling relationship within each species. We believe that this lack of relationship results from the relatively narrow intraspecific body size variation and seemingly patternless individual variation in Vb within species and take this study as further evidence that general scaling questions are best examined interspecifically rather than intraspecifically.

  8. The negative impact of intentionally introduced Quercus rubra L. on a forest community

    Directory of Open Access Journals (Sweden)

    Beata Woziwoda

    2014-03-01

    Full Text Available Some alien woody species used in commercial forestry become invasive and, as invaders, cause major problems in natural and semi-natural ecosystems. However, the deliberate introduction of aliens can bring unintended negative changes also within areas of their cultivation. This paper presents the effects of the intentional introduction of the North-American Quercus rubra in European mixed Scots pine-Pedunculate oak forests (POFs: Querco roboris-Pinetum (W. Mat. 1981 J. Mat. 1988. Phytosociological data from field research combined with GIS data analysis of the current distribution of Northern Red oak in the studied habitat were used to determine the composition and structure of forest communities in plots with and without Q. rubra participation.  The results show that Q. rubra significantly reduces native species richness and abundance, both in old-growth and in secondary (post-agricultural forests. Not one resident vascular plant benefits from the introduction of Northern Red oak and only a few are able to tolerate its co-occurrence. The natural restocking of all native woody species is also strongly limited by this alien tree.  The introduction of Northern Red oak significantly limits the environmental functions of the POF ecosystem and weakens its economic and social aspects. However, its further cultivation is justified from an economic point of view, as the essential function of the studied forests is commercial timber production, and the introduction of this fast growing alien tree supports the provisioning ecosystem services. A clear description of the level of trade-off between the accepted negative and positive effects of the introduction of Q. rubra on forest ecosystem services requires further interdisciplinary studies.

  9. EFEITO ALELOPÁTICO E MOLUSCICIDA DE AMORA (Morus rubra L.

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    ANA CRISTINA MENDES MIRANDA

    2012-01-01

    Full Text Available Secondary metabolite produced in some plants can provoke alterations in the development of other plants or even other organisms. The aim of this paper was to identify possible allelopathic effects and biologic control of Achatina fulica Bowdich with aqueous extracts of Morus rubra L. leaves. For obtaining the aqueous extract, we used previously dried leaves in concentration of 1g 10 mL-1. Five concentrations of each aqueous extract were tested (10, 30, 50, 70 and 100% and compared to control (0.0%, distilled water. The aqueous extracts of Morus rubra showed up allelopathic potentialities on the seed germination and in the growth of the shoot and the root system of the tested species, considering that the reduction in the germination and initial growth increased with the rising of the aqueous extracts concentrations used and, in the biologic control, only in the final mass of A. fulica. The results indicated the existence of allelopathic effect, but not molluscicide of M. rubra.

  10. The prevalence of pityriasis versicolor in the dormitories of the Lorestan University of Medical Sciences by the three methods: skin scraping, use of scotch tape and wood’s lamp

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    sanaz Rostami

    2016-05-01

    Full Text Available Background : Pityriasis versicolor is a chronic, recurrent and often asymptomatic infection of stratum corneum, Which is caused by lipophilic yeasts of Malassezia. Human to human transmission through direct contact is possible. The present study aimed to assess the prevalence of pityriasis versicolor in the dormitories of the Lorestan University of Medical Sciences by the three methods: skin scraping, use of scotch tape and wood’s lamp was perfumed. Materials and Methods: In this descriptive cross-sectional study,115 students in the dormitories of the university of medical sciences were studied with the three methods:skin scraping, using  scotch tape and wood’s lamp. Results: Among 115 patients, 66.94% were female and 33.05% were male. The mean age was 21.38 years.25% of boys and 11.1% of girls were affected.The prevalence of  Pityriasis versicolor by  the three methods was determined 15.7%. In this study, the  most common site of infection was shoulder and neck. Conclusion: The recent study showed a high prevalence of Pityriasis versicolor in Lorestan University of  Medical Sciences students . The prevalence of pityriasis versicolor had a statistically significant difference between males and females, and was more common in females .  The pairwise comparison results obtained  from the three methods using the Kappa coefficient, scotch tape method  was the most consistent results than the other two methods.

  11. Anatomical and phenological implications of the relationship between Schinus polygama (Cav.) (Cabrera) and the galling insect Calophya rubra (Blanchard).

    Science.gov (United States)

    Guedes, L M; Aguilera, N; Ferreira, B G; Becerra, J; Hernández, V; Isaias, R M S

    2018-05-01

    The success of galling insects could be determined by synchronisation with host plant phenology and climate conditions, ensuring suitable oviposition sites for gall induction and food resources for their survival. The anatomical, histochemical and phenological synchronisation strategies between Calophya rubra (Blanchard) (Hemiptera: Psylloidea) and its host, the evergreen plant Schinus polygama (Cav.) (Cabrera) (Anacardiaceae), in the Mediterranean climate of southern Chile was evaluated and compared to that of the congeneric C. cf. duvauae (Scott) from Brazil and closely related host plant S. engleri in a subtropical climate. Anatomical, histometric, histochemical and vegetative phenology studies of the stem and galls were conducted from June 2015 to December 2016. Based on the anatomical, histometric and histochemical analysis, the conical stem gall traits imply gains over the non-galled stem toward the galling insect survival, but the maintenance of phellem, secretory ducts and pith indicate conservative developmental traits that cannot be manipulated by C. rubra. Our results indicate that the conditions of the Mediterranean climate zone limit C. rubra immature activity during unfavourable periods, probably determining a diapause period and a univoltine life cycle, which are peculiarities of the S. polygama- C. rubra system. The synchronisation between development and seasonality confers peculiarities to the S. polygama- C. rubra system in the Mediterranean climate zone. © 2018 German Society for Plant Sciences and The Royal Botanical Society of the Netherlands.

  12. Welke soort rood zwenkgras (Festuca rubra s.l.) komt voor in de jonge kustduinen van Voorne en die van overig Nederland?

    NARCIS (Netherlands)

    Freijsen, A.H.J.; Heeres, Els

    1972-01-01

    By common consent two taxa of Festuca rubra s.l. occur in sandy outer dunes along the N.W. European coasts. Festuca juncifolia St. Amans is considered to be a typical grass of Ammophiladunes. Festuca rubra subsp. arenaria (Osb.) Richt. could be found on almost fixed dunes. The only usable character

  13. Impacts of the Invasive European Red Ant (Myrmica rubra (L.): Hymenoptera; Formicidae) on a Myrmecochorous System in the Northeastern United States.

    Science.gov (United States)

    Gammans, Nicola; Drummond, Frank; Groden, Eleanor

    2018-05-16

    We investigated the impact of an invasive ant species from Europe, Myrmica rubra (L.), on a myrmecochorous system (seeds dispersed by ants) in its invaded range in North America. We assessed: 1) how M. rubra process the myrmecochorous diapsores (seeds and elaiosome as a single dispersal unit transported by ants) in comparison with native ants; 2) its preference for common native and invasive diaspore species relative to native ants; 3) how far they disperse diaspores in the field; and 4) the diaspore removal rate by invertebrates and vertebrates in infested areas compared to noninvaded sites. Field experiments demonstrated higher diaspore removal rates over a 10-min and 24-h period by M. rubra compared to native ants. M. rubra's diaspore dispersal distance was 40% greater compared to native ants. In two of three laboratory studies and one field study, there was no significant difference between the seed species which M. rubra and native ants selected. Our data suggest no long-term deleterious effects of M. rubra's invasion on diaspore dispersal in the Maine plant community that is comprised of both native and invasive species. This implies that M. rubra benefits from the myrmechorous plant species' diaspores by increasing their dispersal range away from the parent plant and potentially reducing seed predation. However, it is not known whether the fact that the native ant fauna and M. rubra are attracted to the same plant species' diaspores creates a high level of competition between the ants with deleterious effects on the native ant community.

  14. Myrica rubra leaves as a potential source of a dual 5-LOX/COX inhibitor

    Czech Academy of Sciences Publication Activity Database

    Langhansová, Lenka; Landa, Přemysl; Kutil, Zsófia; Tauchen, Jan; Maršík, Petr; Rezek, Jan; Lou, J.D.; Yun, Z.L.; Vaněk, Tomáš

    2017-01-01

    Roč. 28, č. 2 (2017), s. 343-353 ISSN 0954-0105 R&D Projects: GA MŠk LH12165; GA ČR(CZ) GA16-07193S Grant - others:OPPK(CZ) CZ.2.16/3.1.00/24014 Institutional support: RVO:61389030 Keywords : in-vitro * antiinflammatory activity * zucc. leaves * 5-lipoxygenase * sieb. * cyclooxygenase * constituents * antioxidants * myricitrin * metabolism * Myrica rubra * anti-inflammatory * cyclooxygenase 1 * cyclooxygenase 2 * 5-lipoxygenase Subject RIV: FR - Pharmacology ; Medidal Chemistry OBOR OECD: Medicinal chemistry Impact factor: 1.392, year: 2016

  15. CLINICOPATHOLOGICAL STUDY OF PAPULOSQUAMOUS SKIN LESIONS

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    Chowdari Balaji

    2018-02-01

    Full Text Available BACKGROUND Papulosquamous lesions form the largest group of skin diseases. Since, they are all characterized by scaling papules or plaques, clinical confusion may result in their diagnosis, hence definitive histopathological analysis is important for their differentiation. MATERIALS AND METHODS The study includes skin biopsies from 108 clinically diagnosed /suspected non-infectious, erythematous, papulosquamous skin diseases which were received in the Department of Pathology, Andhra Medical College, Visakhapatnam for a period of two years from January 2016 to December 2017. The specimens obtained were subjected to formalin fixation and was subjected to routine processing and sections were stained with haematoxylin and eosin (H&E. The lesions were classified as Lichen Planus, Psoriasis, along with rare conditions like Pityriasis Rosea, Parapsoriasis, Pityriasis Rubra Pilaris, Prurigo Nodularis and Lichen Simplex chronicus and clinicopathological correlation was done. RESULTS A total of 108 cases were studied. Lichen planus (51 cases- 47.22% was the most common lesions followed by Psoriasis (34 cases - 31.48% and with majority of cases in the age group of 21 to 30 years (25 cases– 23.15%. Females were more commonly affected with a male to female ratio of 0.89:1. Out of 108 cases, clinicopathological correlation was seen in 68 cases (62.96%. CONCLUSION The importance of specific histopathological diagnosis lies in distinguishing these lesions into different entities as the treatment and prognosis varies widely and is disease-specific.

  16. Study of the distribution of Malassezia species in patients with pityriasis versicolor and healthy individuals in Tertiary Care Hospital, Punjab

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    M Kaur

    2013-01-01

    Full Text Available Purpose: Pityriasis versicolor (PV is a chronic superficial fungal disease caused by Malassezia species. Our aim was to identify Malassezia species from PV patients and healthy individuals in Punjab. Materials and Methods: Modified Dixon agar was used as isolation culture medium. Identification was based on morphological observation and biochemical evaluation. The biochemical evaluation consisted of culture onto Sabouraud dextrose agar, catalase reaction, Tween assimilation, Cremophor EL assimilation, splitting of esculin and growth at 38 0 C. Results: Out of 58 microscopically diagnosed cases of PV, growth was obtained from 54 (93.10% cases. The most frequently isolated species were M. globosa, M. sympodialis and M. furfur which made up 51.79%, 31.42% and 18.51% of the isolated etiological agents respectively. However, the major isolate from the back of healthy individuals was M. sympodialis (47.61%, followed by M.obtusa (19.04%, M. globosa (14.20%, M. furfur (9.52%, M. pachydermatis (4.76% and M. slooffiae (4.76%. Conclusions: M. globosa in its mycelial phase was the main etiological agent, but as normal flora from the back of healthy subjects, it was found in significantly less number (P = 0.01, suggesting that the higher pathogenicity of M. globosa in terms of enzymatic endowment, might be the cause of its predominance in PV lesions.

  17. Improving germination of red elm (Ulmus rubra), gray alder (Alnus incana), and buffaloberry (Shepherdia canadensis) seeds with gibberellic acid

    Science.gov (United States)

    Brenda Morales; Charles Barden; Cheryl Boyer; Jason Griffin; Lillian Fisher; Joni Thompson

    2012-01-01

    Red elm (Ulmus rubra), gray alder (Alnus incana), and buffaloberry (Shepherdia canadensis) are considered important plants for many Native American tribes in the United States. Native Americans use these 3 species for a variety of traditional and medicinal purposes. For example, red elm is still the preferred firewood for the cultural ceremonies of several tribes....

  18. Rooting stem cuttings of northern red oak (Quercus rubra L.) utilizing hedged stump sprouts formed on recently felled trees

    Science.gov (United States)

    Matthew H. Gocke; Daniel J. Robinson

    2010-01-01

    The ability to root stem cuttings collected from hedged stump sprouts formed on recently felled trees was evaluated for 26 codominant northern red oak (Quercus rubra L.) trees growing in Durham County, NC. Sprouting occurred, the same year as felling, on 23 of the 26 tree stumps and sprout number was significantly and positively correlated with stump diameter. The...

  19. Root desiccation and drought stress responses of bareroot Quercus rubra seedlings treated with a hydrophilic polymer root dip

    Science.gov (United States)

    Kent G. Apostol; Douglass F. Jacobs; R. Kasten Dumroese

    2009-01-01

    Root hydrogel, a hydrophilic polymer, has been used to improve transplanting success of bareroot conifer seedlings through effects on water holding capacity. We examined mechanisms by which Terra-sorb Fine Hydrogel reduces damage that occurs when roots of 1-year old, dormant northern red oak (Quercus rubra L.) were subjected to shortterm (1, 3, and 5...

  20. The influence of cultural treatments of the long-term survival and growth of planted Quercus rubra

    Science.gov (United States)

    James J. Zaczek; Kim C. Steiner

    2011-01-01

    A northern red oak (Quercus rubra L.) plantation testing 20 nursery stock and planting methods was used to evaluate treatments 3, 6, 10, and 17 years after planting. Survival over all treatments was 92 percent at age 3 and declined to 74 percent, 56 percent, and 39 percent at ages 6, 10, and 17, respectively. At age 17, survival was highest for...

  1. Photosynthesis and xanthophyll cycle-mediated photoprotection in leaves of Quercus rubra and Q. alba seedlings of different light environments

    Science.gov (United States)

    Shi-Jean S. Sung; Dianpeng Xu; Paul P. Kormanik; Clanton C. Black

    1997-01-01

    Two and three years after the outplanting of 1-0 northern red oak (Quercus rubra, NRO) and white oak (Q. alba, WO) nursery stocks, the highest net photosynthetic rates (Amax) were observed from seedlings growing on a clearcut site, followed by those under a pine stand. Both NRO and WO...

  2. Essential oil from Myrica rubra leaves inhibits cancer cell proliferation and induces apoptosis in several human intestinal lines

    Czech Academy of Sciences Publication Activity Database

    Langhansová, Lenka; Hanusová, V.; Rezek, Jan; Stohanslová, B.; Ambrož, M.; Králová, V.; Vaněk, Tomáš; Lou, J.D.; Yun, Z.L.; Yang, J.; Skálová, L.

    2014-01-01

    Roč. 59, AUG 2014 (2014), s. 20-26 ISSN 0926-6690 R&D Projects: GA MŠk LH12165 Institutional support: RVO:61389030 Keywords : Myrica rubra * Essential oil * Antiproliferative effect Subject RIV: FR - Pharmacology ; Medidal Chemistry Impact factor: 2.837, year: 2014

  3. Morphology and molecular phylogeny of Paragorgia rubra sp. nov. (Cnidaria: Octocorallia), a new bubblegum coral species from a seamount in the tropical Western Pacific

    Science.gov (United States)

    Li, Yang; Zhan, Zifeng; Xu, Kuidong

    2017-07-01

    A new species of bubblegum coral, Paragorgia rubra sp. nov., discovered from a seamount at a water depth of 373 m near the Yap Trench is studied using morphological and molecular approaches. Paragorgia rubra sp. nov. is the fourth species of the genus found in the tropical Western Pacific. The new gorgonian is red-colored, uniplanar, and measures approximately 530 mm high and 440 mm wide, with autozooids distributed only on one side of the colony. Paragorgia rubra sp. nov. is most similar to P. kaupeka Sánchez, 2005, but differs distinctly in the polyp ovals with large and compound protuberances (vs. small and simple conical protuberances) and the medullar spindles possessing simple conical protuberances (vs. compound protuberances). Moreover, P. rubra sp. nov. differs from P. kaupeka in the smaller length/width ratio of surface radiates (1.53 vs. 1.75). The genetic distance of the mtMutS gene between P. rubra sp. nov. and P. kaupeka is 0.66%, while the intraspecific distances within Paragorgia Milne-Edwards & Haime, 1857 except the species P. regalis complex are no more than 0.5%, further supporting the establishment of the new species. Furthermore, the ITS2 secondary structure of P. rubra sp. nov. is also different from those of congeners. Phylogenetic analyses indicate Paragorgia rubra sp. nov. and P. kaupeka form a clade, which branched early within Paragorgia and diversified approximately 15 Mya.

  4. Essential Oil from Myrica rubra Leaves Potentiated Antiproliferative and Prooxidative Effect of Doxorubicin and its Accumulation in Intestinal Cancer Cells.

    Science.gov (United States)

    Ambrož, Martin; Hanušová, Veronika; Skarka, Adam; Boušová, Iva; Králová, Věra; Langhasová, Lenka; Skálová, Lenka

    2016-01-01

    Essential oil from the leaves of Myrica rubra, a subtropical Asian fruit tree traditionally used in folk medicines, has a significant antiproliferative effect in several intestinal cancer cell lines. Doxorubicin belongs to the most important cytostatics used in cancer therapy. The present study was designed to evaluate the effects of defined essential oil from M. rubra leaves on efficacy, prooxidative effect, and accumulation of doxorubicin in cancer cell lines and in non-cancerous cells. For this purpose, intestinal adenocarcinoma CaCo2 cells were used. Human fibroblasts (periodontal ligament) and a primary culture of rat hepatocytes served as models of non-cancerous cells. The results showed that the sole essential oil from M. rubra has a strong prooxidative effect in cancer cells while it acts as a mild antioxidant in hepatocytes. Combined with doxorubicin, the essential oil enhanced the antiproliferative and prooxidative effects of doxorubicin in cancer cells. At higher concentrations, synergism of doxorubicin and essential oil from M. rubra was proved. In non-cancerous cells, the essential oil did not affect the toxicity of doxorubicin and the doxorubicin-mediated reactive oxygen species formation. The essential oil increased the intracellular concentration of doxorubicin and enhanced selectively the doxorubicin accumulation in nuclei of cancer cells. Taken together, essential oil from M. rubra leaves could be able to improve the doxorubicin efficacy in cancer cells due to an increased reactive oxygen species production, and the doxorubicin accumulation in nuclei of cancer cells. Georg Thieme Verlag KG Stuttgart · New York.

  5. Adsorption recovery of thorium(IV) by Myrica rubra tannin and larch tannin immobilized onto collagen fibres

    International Nuclear Information System (INIS)

    Xuepin Liao; Li Li; Bi Shi

    2004-01-01

    Novel adsorbents which can concentrate Th(IV) in aqueous solution were prepared by immobilizing Myrica rubra tannin and larch tannin onto collagen fibre matrices. The adsorption capacities of the immobilized tannins to Th(IV) are related to temperature and pH value of the adsorption process. For example, when the initial concentration of Th(IV) was 116.0 mg x l -1 and the immobilized tannin was 100 mg, the adsorption capacities of immobilized Myrica rubra tannin and larch tannin were 55.98 mg Th(IV) x g -1 and 13.19 mg Th(IV) x g -1 , respectively at 303 K, and 73.67 mg Th(IV) x g -1 and 18.19 mg Th(IV) x g -1 at 323 K. It was also found that the higher adsorption capacity was obtained at higher pH value. The adsorption equilibrium data of the immobilized tannins for Th(IV) can be well fitted by the Langmuir model and the mechanism of the adsorption was found to be a chemical adsorption. In general, the adsorption capacity of immobilized Myrica rubra tannin to Th(IV) is significantly higher than that of immobilized larch tannin, probably due to the fact that the B ring of Myrica rubra tannin has a pyrogallol structure which has higher reaction activity with metal ions. The breakthrough point of the adsorption column of immobilized Myrica rubra tannin was at 33 bed volumes for the experimental system. The mass transfer coefficient of adsorption column determined by Adams-Bohart equation was 1.61 x 10 -4 l x mg -1 x min -1 . The adsorption column can be easily regenerated by 0.1 mol x l -1 HNO 3 solution, showing outstanding ability of concentrating Th(IV). (author)

  6. Highly Enantioselective Production of (R-Halohydrins with Whole Cells of Rhodotorula rubra KCh 82 Culture

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    Tomasz Janeczko

    2014-12-01

    Full Text Available Biotransformation of ten α-haloacetophenones in the growing culture of the strain Rhodotorula rubra KCh 82 has been carried out. Nine of the substrates underwent an effective enantioselective reduction to the respective (R-alcohols according to Prelog’s rule, with the exception of 2-chloro-1,2-diphenylethan-1-one that was not transformed by this strain. The expected reduction proceeded without dehalogenation, leading to the respective (R-halohydrins in high yields. The use of this biocatalyst yielded (R-2-bromo-1-phenyl-ethan-1-ol (enantiomeric excess (ee = 97% and its derivatives: 4'-Bromo- (ee = 99%; 4'-Chloro- (ee > 99%; 4'-Methoxy- (ee = 96%; 3'-Methoxy- (ee = 93%; 2'-Methoxy- (ee = 98%. There were also obtained and characterized 2,4'-dichloro-, 2,2',4'-trichloro- and 2-chloro-4'-fluoro-phenyetan-1-ol with >99% of enantiomeric excesses.

  7. Highly enantioselective production of (R)-halohydrins with whole cells of Rhodotorula rubra KCh 82 culture.

    Science.gov (United States)

    Janeczko, Tomasz; Dymarska, Monika; Kostrzewa-Susłow, Edyta

    2014-12-04

    Biotransformation of ten α-haloacetophenones in the growing culture of the strain Rhodotorula rubra KCh 82 has been carried out. Nine of the substrates underwent an effective enantioselective reduction to the respective (R)-alcohols according to Prelog's rule, with the exception of 2-chloro-1,2-diphenylethan-1-one that was not transformed by this strain. The expected reduction proceeded without dehalogenation, leading to the respective (R)-halohydrins in high yields. The use of this biocatalyst yielded (R)-2-bromo-1-phenyl-ethan-1-ol (enantiomeric excess (ee) = 97%) and its derivatives: 4'-Bromo- (ee = 99%); 4'-Chloro- (ee > 99%); 4'-Methoxy- (ee = 96%); 3'-Methoxy- (ee = 93%); 2'-Methoxy- (ee = 98%). There were also obtained and characterized 2,4'-dichloro-, 2,2',4'-trichloro- and 2-chloro-4'-fluoro-phenyetan-1-ol with >99% of enantiomeric excesses.

  8. Dry deposition of sulfate to Quercus rubra and Liriodendron tulipifera foliage

    International Nuclear Information System (INIS)

    Vandenberg, J.J.

    1987-01-01

    Estimates were made of the rate of dry deposition to red oak (Quercus rubra) and tulip poplar (Liriodendron tulipifera) foliage. In the laboratory, radioactive ammonium sulfate aerosols were generated in an exposure chamber. These aerosols were dry deposited onto leaves that were sequentially washed to examine the efficacy of washing procedures in removal of surface deposits. Over 90% of dry deposited sulfate was removed after a 30 second wash duration. Laboratory procedures also estimated the magnitude of foliar sulfur that leached into leaf wash solutions. The majority of laboratory leaves demonstrated no leaching of sulfur from the internal pool. However, some leaves showed significant sulfur leaching. It was concluded that leaching of internal sulfur was highly leaf specific. This indicated that each leaf used in field experiments needed to be individually examined for leaching

  9. Geographic Variation in Festuca rubra L. Ploidy Levels and Systemic Fungal Endophyte Frequencies.

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    Serdar Dirihan

    Full Text Available Polyploidy and symbiotic Epichloë fungal endophytes are common and heritable characteristics that can facilitate environmental range expansion in grasses. Here we examined geographic patterns of polyploidy and the frequency of fungal endophyte colonized plants in 29 Festuca rubra L. populations from eight geographic sites across latitudes from Spain to northernmost Finland and Greenland. Ploidy seemed to be positively and negatively correlated with latitude and productivity, respectively. However, the correlations were nonlinear; 84% of the plants were hexaploids (2n = 6x = 42, and the positive correlation between ploidy level and latitude is the result of only four populations skewing the data. In the southernmost end of the gradient 86% of the plants were tetraploids (2n = 4x = 28, whereas in the northernmost end of the gradient one population had only octoploid plants (2n = 8x = 56. Endophytes were detected in 22 out of the 29 populations. Endophyte frequencies varied among geographic sites, and populations and habitats within geographic sites irrespective of ploidy, latitude or productivity. The highest overall endophyte frequencies were found in the southernmost end of the gradient, Spain, where 69% of plants harbored endophytes. In northern Finland, endophytes were detected in 30% of grasses but endophyte frequencies varied among populations from 0% to 75%, being higher in meadows compared to riverbanks. The endophytes were detected in 36%, 30% and 27% of the plants in Faroe Islands, Iceland and Switzerland, respectively. Practically all examined plants collected from southern Finland and Greenland were endophyte-free, whereas in other geographic sites endophyte frequencies were highly variable among populations. Common to all populations with high endophyte frequencies is heavy vertebrate grazing. We propose that the detected endophyte frequencies and ploidy levels mirror past distribution history of F. rubra after the last glaciation

  10. Crystallization and preliminary X-ray analysis of the NADPH-dependent 3-quinuclidinone reductase from Rhodotorula rubra

    Science.gov (United States)

    Takeshita, Daijiro; Kataoka, Michihiko; Miyakawa, Takuya; Miyazono, Ken-ichi; Uzura, Atsuko; Nagata, Koji; Shimizu, Sakayu; Tanokura, Masaru

    2009-01-01

    (R)-3-Quinuclidinol is a useful compound that is applicable to the synthesis of various pharmaceuticals. The NADPH-dependent carbonyl reductase 3-­quinuclidinone reductase from Rhodotorula rubra catalyzes the stereospecific reduction of 3-quinuclidinone to (R)-3-quinuclidinol and is expected to be utilized in industrial production of this alcohol. 3-Quinuclidinone reductase from R. rubra was expressed in Escherichia coli and purified using Ni-affinity and ion-exchange column chromatography. Crystals of the protein were obtained by the sitting-drop vapour-diffusion method using PEG 8000 as the precipitant. The crystals belonged to space group P41212, with unit-cell parameters a = b = 91.3, c = 265.4 Å, and diffracted X-rays to 2.2 Å resolution. The asymmetric unit contained four molecules of the protein and the solvent content was 48.4%. PMID:19478454

  11. Crystallization and preliminary X-ray analysis of the NADPH-dependent 3-quinuclidinone reductase from Rhodotorula rubra

    International Nuclear Information System (INIS)

    Takeshita, Daijiro; Kataoka, Michihiko; Miyakawa, Takuya; Miyazono, Ken-ichi; Uzura, Atsuko; Nagata, Koji; Shimizu, Sakayu; Tanokura, Masaru

    2009-01-01

    The NADPH-dependent 3-quinuclidinone reductase from Rhodotorula rubra was expressed, purified, and crystallized and X-ray diffraction data of this crystal were collected to 2.2 Å resolution. (R)-3-Quinuclidinol is a useful compound that is applicable to the synthesis of various pharmaceuticals. The NADPH-dependent carbonyl reductase 3-quinuclidinone reductase from Rhodotorula rubra catalyzes the stereospecific reduction of 3-quinuclidinone to (R)-3-quinuclidinol and is expected to be utilized in industrial production of this alcohol. 3-Quinuclidinone reductase from R. rubra was expressed in Escherichia coli and purified using Ni-affinity and ion-exchange column chromatography. Crystals of the protein were obtained by the sitting-drop vapour-diffusion method using PEG 8000 as the precipitant. The crystals belonged to space group P4 1 2 1 2, with unit-cell parameters a = b = 91.3, c = 265.4 Å, and diffracted X-rays to 2.2 Å resolution. The asymmetric unit contained four molecules of the protein and the solvent content was 48.4%

  12. Pitiríase versicolor circinada: isolamento de Malassezia sympodialis - Relato de caso Pityriasis versicolor circinata: isolation of Malassezia sympodialis - Case report

    Directory of Open Access Journals (Sweden)

    Valéria Maria de Souza Framil

    2010-04-01

    Full Text Available Os autores descrevem caso de pitiríase versicolor circinada, cujo agente etiológico isolado foi Malassezia sympodialis em uma mulher de 34 anos. O isolamento e identificação da Malassezia sympodialis foi em ágar Dixon modificado e o método molecular para confirmação da espécie foi PCR-RFLP (polymerase chain reaction and restriction fragment length polymorphism analysis.The authors report a case of pityriasis versicolor circinata whose isolated etiologic agent was Malassezia sympodialis in a 34-year-old woman. The isolation and identification of Malassezia sympodialis were accomplished with modified Dixon's agar, and the molecular method used to confirm the species was polymerase chain reaction and restriction fragment length polymorphism analysis (PCR-RFLP.

  13. Effects of Cornus mas L. and Morus rubra L. extracts on penicillin-induced epileptiform activity: an electrophysiological and biochemical study.

    Science.gov (United States)

    Tubaş, Filiz; Per, Sedat; Taşdemir, Abdulkadir; Bayram, Ayşe Kaçar; Yıldırım, Mehmet; Uzun, Aydın; Saraymen, Recep; Gümüş, Hakan; Elmalı, Ferhan; Per, Hüseyin

    2017-01-01

    Traditionally, Morus rubra L. (Moraceae) (red mulberry) and Cornus mas L. (Cornacea) (cornelian cherry) fruits are eaten fresh and are also used in marmalades, juices, jam, natural dyes in Turkey and are believed to have beneficial effects in case of multiple health issues such as antipyretic, diarrhea and intestinal parasites. However, the effects of M. rubra and C. mas on epilepsy has not been known. This study evaluates the effects of M. rubra and C. mas extracts on penicillin-induced epileptiform activity. Sixty Wistar rats randomly divided into ten groups (n=6): control, sham, penicillin, penicillin+M. rubra extract (2.5, 5, 10, 20 mg/kg) and penicillin+C. mas extract (2.5, 5, 10 mg/kg). Epileptiform activity was induced by using penicillin (500 IU, i.c.) and electrocorticogram records (150 min) were obtained. Also, biochemical analysis in blood samples were evaluated. According to the electrocorticogram analysis, the effective dose was detected as 10 mg/kg for both C. mas and M. rubra. This dose decreased the spike frequencies of convulsions while amplitude wasn't changed by both substances. In erythrocyte studies, there were significant differences regarding nitric oxide in the control, sham and penicillin groups. There were significant differences regarding malondialdehyde in all groups. In the plasma, there were significant differences among groups regarding xanthine oxidase in the penicillin‑C. mas and penicillin‑M. rubra groups. There were differences regarding malondialdehyde in the penicillin-C. mas and M. rubra-C. mas groups. Both extracts reduced the frequency of epileptiform activity. After administration of the extracts malondialdehyde levels decreased also in both erythrocytes and plasma.

  14. A Novel Contrast Stain for the Rapid Diagnosis of Pityriasis Versicolor: A Comparison of Chicago Sky Blue 6B Stain, Potassium Hydroxide Mount and Culture.

    Science.gov (United States)

    Lodha, Nikita; Poojary, Shital Amin

    2015-01-01

    The mycological study of pityriasis versicolor is usually done by potassium hydroxide (KOH) mount and culture. However, KOH mount lacks a color contrast and requires a trained eye to interpret, while culture is difficult to perform, time consuming and has low sensitivity. Chicago Sky Blue 6B (CSB) is a new contrast stain that highlights the fungal hyphae and spores, blue against a purplish background. This study was done to compare the utility of a novel contrast stain (CSB stain) with KOH mount and culture. Skin scrapings from the lesions of 100 clinically diagnosed cases of P. versicolor were subjected to (1) KOH mount and CSB stain for direct microscopic examination and (2) culture using Sabouraud's dextrose agar. The statistical analysis of CSB stain and culture was done using KOH mount as the reference method, as it is the most commonly performed and practical diagnostic test available for P. versicolor. An interrater reliability analysis using the Cohen's Kappa statistic was performed to determine consistency (agreement) among the different modalities. Direct microscopy with CSB stain, KOH mount and mycological culture showed positive results in 98 (98%), 92 (92%) and 56 (56%) patients, respectively. Using KOH mount as the reference method, CSB stain had a sensitivity of 100% which was significantly higher than culture (60.9%). Statistically significant fair agreement was found between CSB stain and KOH mount (94% with κ=0.38, P < 0.001). Negligible agreement was found between CSB stain and culture (66%, κ=0.199, P = 0.001) as well as between KOH mount and culture (64%, κ=0.051, P = 0.107). CSB staining of skin scrapings is the most sensitive method for the diagnosis of pityriasis versicolor. Due to the distinct contrast provided by CSB, it is easy to perform, rapid and qualitatively superior to KOH mount.

  15. A novel contrast stain for the rapid diagnosis of pityriasis versicolor: A comparison of Chicago Sky Blue 6B stain, potassium hydroxide mount and culture

    Directory of Open Access Journals (Sweden)

    Nikita Lodha

    2015-01-01

    Full Text Available Background: The mycological study of pityriasis versicolor is usually done by potassium hydroxide (KOH mount and culture. However, KOH mount lacks a color contrast and requires a trained eye to interpret, while culture is difficult to perform, time consuming and has low sensitivity. Chicago Sky Blue 6B (CSB is a new contrast stain that highlights the fungal hyphae and spores, blue against a purplish background. Aims and Objectives: This study was done to compare the utility of a novel contrast stain (CSB stain with KOH mount and culture. Materials and Methods: Skin scrapings from the lesions of 100 clinically diagnosed cases of P. versicolor were subjected to (1 KOH mount and CSB stain for direct microscopic examination and (2 culture using Sabouraud′s dextrose agar. The statistical analysis of CSB stain and culture was done using KOH mount as the reference method, as it is the most commonly performed and practical diagnostic test available for P. versicolor. An interrater reliability analysis using the Cohen′s Kappa statistic was performed to determine consistency (agreement among the different modalities. Observations and Results: Direct microscopy with CSB stain, KOH mount and mycological culture showed positive results in 98 (98%, 92 (92% and 56 (56% patients, respectively. Using KOH mount as the reference method, CSB stain had a sensitivity of 100% which was significantly higher than culture (60.9%. Statistically significant fair agreement was found between CSB stain and KOH mount (94% with κ=0.38, P < 0.001. Negligible agreement was found between CSB stain and culture (66%, κ=0.199, P = 0.001 as well as between KOH mount and culture (64%, κ=0.051, P = 0.107. Conclusion: CSB staining of skin scrapings is the most sensitive method for the diagnosis of pityriasis versicolor. Due to the distinct contrast provided by CSB, it is easy to perform, rapid and qualitatively superior to KOH mount.

  16. Back to America: tracking the origin of European introduced populations of Quercus rubra L.

    Science.gov (United States)

    Merceron, Nastasia R; Leroy, Thibault; Chancerel, Emilie; Romero-Severson, Jeanne; Borkowski, Daniel S; Ducousso, Alexis; Monty, Arnaud; Porté, Annabel J; Kremer, Antoine

    2017-09-01

    Quercus rubra has been introduced in Europe since the end of the 17th century. It is widely distributed today across this continent and considered invasive in some countries. Here, we investigated the distribution of genetic diversity of both native and introduced populations with the aim of tracing the origin of introduced populations. A large sampling of 883 individuals from 73 native and 38 European locations were genotyped at 69 SNPs. In the natural range, we found a continuous geographic gradient of variation with a predominant latitudinal component. We explored the existence of ancestral populations by performing Bayesian clustering analysis and found support for two or three ancestral genetic clusters. Approximate Bayesian Computations analyses based on these two or three clusters support recent extensive secondary contacts between them, suggesting that present-day continuous genetic variation resulted from recent admixture. In the introduced range, one main genetic cluster was not recovered in Europe, suggesting that source populations were preferentially located in the northern part of the natural distribution. However, our results cannot refute the introduction of populations from the southern states that did not survive in Europe.

  17. Phytochemical Content of Some Black (Morus nigra L. and Purple (Morus rubra L. Mulberry Genotypes

    Directory of Open Access Journals (Sweden)

    Murat Tosun

    2010-01-01

    Full Text Available Bright black (Morus nigra and purple mulberry (Morus rubra are particularly desirable fruits in Turkey. More recently, the interest in these bright black and purple mulberry fruits has also increased because of the popularization of healthy properties of these fruits. The study was carried out in 2008 aiming to determine the antioxidant activity (ferric reducing ability of plasma, FRAP, total phenolic, total anthocyanin, mineral, soluble solid, vitamin C, and total acid content of four black and four purple mulberry genotypes grown in Turkey. The results show that black mulberry genotypes have a higher bioactive content than purple mulberry genotypes. The average total phenolic content and total anthocyanins of black mulberry genotypes were 2149 μg of gallic acid equivalent (GAE per g and 719 μg of cyanidin 3-glucoside equivalent (Cy 3-glu per g of fresh mass. In purple mulberry, these values were for GAE 1690 μg/g and for Cy 3-glu 109 μg/g on fresh mass basis. The average antioxidant activity of black mulberry genotypes was also found to be higher than that of the purple ones according to FRAP assay (Trolox equivalent (TE per fresh mass of black and purple mulberries was 13.35 and 6.87 μmol/g, respectively.

  18. Effects of invasive European fire ants (Myrmica rubra on herring gull (Larus argentatus reproduction.

    Directory of Open Access Journals (Sweden)

    Luke E DeFisher

    Full Text Available Various invasive ant species have negatively affected reproductive success in birds by disrupting nest site selection, incubation patterns, food supply, and by direct predation on nestlings. Impacts can be particularly severe when non-native ants colonize seabird nesting islands where thousands of birds may nest in high densities on the ground or in burrows or crevices. Here we report on the first documented effects of Myrmica rubra, the European fire ant, on the reproduction of birds in its non-native range. We documented herring gulls (Larus argentatus on Appledore Island, Maine, engaging in more erratic incubation behaviors at nests infested by the ants. Newly-hatched chicks in some nests were swarmed by ants, leading to rapid chick death. Due to high overall rates of chick mortality, survival probabilities did not vary between nests with and without ant activity, however chick growth rates were slower at nests with ants than at ant-free nests. Ant infestation likely leads to longer-term fitness consequences because slower growth rates early in life may ultimately lead to lower post-fledging survival probabilities.

  19. [Effects of simulated acid rain on water physiological characteristics of Myrica rubra seedlings].

    Science.gov (United States)

    Yaho, Zhao-bin; Jiang, Hong; Yu, Shu-quan; Lu, Mei-juan

    2011-08-01

    Taking the seedlings of typical subtropical economic tree species Myrica rubra in Zhejiang Province as test materials, a pot experiment was conducted to study their water physiological characteristics under effects of simulated acid rain (pH 2.5 and pH 4.0), with water (pH 5.6) as the control. Season, year, and acid rain all had significant effects on the photosynthetic rate (Pn). Among the treatments, the Pn had a greater difference in summer than in spring and autumn, and was higher in treatment acid rain (pH 4.0). Season, year, acid rain, and the interactions of season and year and of the three factors had significant effects on the stomata conductance (Gs), and also, the Gs had a greater difference among the treatments in summer than in spring and autumn. Acid rain had inhibitory effect on Gs. Season, year, acid rain, and the interactions of season and year and of season and acid rain affected the transpiration rate (Tr) significantly. Same as Pn and Gs, the Tr had a greater difference among the treatments in summer than in spring and autumn. Acid rain (pH 2.5) had the strongest inhibitory effect on Tr. Acid rain and the interactions of season and year and of season and acid rain had significant effects on the water use efficiency (WUE), and acid rain (pH 2.5) had definitely positive effect on the WUE.

  20. Quercus rubra-associated ectomycorrhizal fungal communities of disturbed urban sites and mature forests.

    Science.gov (United States)

    Karpati, Amy S; Handel, Steven N; Dighton, John; Horton, Thomas R

    2011-08-01

    The presence and quality of the belowground mycorrhizal fungal community could greatly influence plant community structure and host species response. This study tests whether mycorrhizal fungal communities in areas highly impacted by anthropogenic disturbance and urbanization are less species rich or exhibit lower host root colonization rates when compared to those of less disturbed systems. Using a soil bioassay, we sampled the ectomycorrhizal fungal (EMF) communities associating with Quercus rubra (northern red oak) seedlings in soil collected from seven sites: two mature forest reference sites and five urban sites of varying levels of disturbance. Morphological and polymerase chain reaction-restriction fragment length polymorphism analyses of fungi colonizing root tips revealed that colonization rates and fungal species richness were significantly lower on root systems of seedlings grown in disturbed site soils. Analysis of similarity showed that EMF community composition was not significantly different among several urban site soils but did differ significantly between mature forest sites and all but one urban site. We identified a suite of fungal species that occurred across several urban sites. Lack of a diverse community of belowground mutualists could be a constraint on urban plant community development, especially of late-successional woodlands. Analysis of urban EMF communities can add to our understanding of urban plant community structure and should be addressed during ecological assessment before pragmatic decisions to restore habitats are framed.

  1. In vitro Anti-Thrombotic Activity of Extracts from Blacklip Abalone (Haliotis rubra Processing Waste

    Directory of Open Access Journals (Sweden)

    Hafiz Ansar Rasul Suleria

    2016-12-01

    Full Text Available Waste generated from the processing of marine organisms for food represents an underutilized resource that has the potential to provide bioactive molecules with pharmaceutical applications. Some of these molecules have known anti-thrombotic and anti-coagulant activities and are being investigated as alternatives to common anti-thrombotic drugs, like heparin and warfarin that have serious side effects. In the current study, extracts prepared from blacklip abalone (Haliotis rubra processing waste, using food grade enzymes papain and bromelain, were found to contain sulphated polysaccharide with anti-thrombotic activity. Extracts were found to be enriched with sulphated polysaccharides and assessed for anti-thrombotic activity in vitro through heparin cofactor-II (HCII-mediated inhibition of thrombin. More than 60% thrombin inhibition was observed in response to 100 μg/mL sulphated polysaccharides. Anti-thrombotic potential was further assessed as anti-coagulant activity in plasma and blood, using prothrombin time (PT, activated partial thromboplastin time (aPTT, and thromboelastography (TEG. All abalone extracts had significant activity compared with saline control. Anion exchange chromatography was used to separate extracts into fractions with enhanced anti-thrombotic activity, improving HCII-mediated thrombin inhibition, PT and aPTT almost 2-fold. Overall this study identifies an alternative source of anti-thrombotic molecules that can be easily processed offering alternatives to current anti-thrombotic agents like heparin.

  2. Paralytic shellfish toxins, including deoxydecarbamoyl-STX, in wild-caught Tasmanian abalone (Haliotis rubra).

    Science.gov (United States)

    Harwood, D Tim; Selwood, Andrew I; van Ginkel, Roel; Waugh, Craig; McNabb, Paul S; Munday, Rex; Hay, Brenda; Thomas, Krista; Quilliam, Michael A; Malhi, Navreet; Dowsett, Natalie; McLeod, Catherine

    2014-11-01

    For the first time wild-caught Tasmanian abalone, Haliotis rubra, have been reported to contain paralytic shellfish toxins (PSTs). This observation followed blooms of the toxic dinoflagellate Gymnodinium catenatum. No illnesses were reported, but harvesting restrictions were enforced in commercial areas. Abalone were assayed using HPLC-FLD methodology based on AOAC official method 2005.06. An uncommon congener, deoxydecarbamoyl-STX (doSTX), was observed in addition to regulated PSTs as unassigned chromatographic peaks. A quantitative reference material was prepared from contaminated Tasmanian abalone viscera and ampouled at 54.2 μmol/L. The LD50 of doSTX via intraperitoneal injection was 1069 nmol/kg (95% confidence limits 983-1100 nmol/kg), indicating it is nearly 40 times less toxic than STX. A toxicity equivalence factor of 0.042 was generated using the mouse bioassay. Levels of PSTs varied among individuals from the same site, although the toxin profile remained relatively consistent. In the foot tissue, STX, decarbamoyl-STX and doSTX were identified. On a molar basis doSTX was the dominant congener in both foot and viscera samples. The viscera toxin profile was more complex, with other less toxic PST congeners observed and was similar to mussels from the same site. This finding implicates localised dinoflagellate blooms as the PST source in Tasmanian abalone. Copyright © 2014 Elsevier Ltd. All rights reserved.

  3. In vitro Anti-Thrombotic Activity of Extracts from Blacklip Abalone (Haliotis rubra) Processing Waste.

    Science.gov (United States)

    Suleria, Hafiz Ansar Rasul; Hines, Barney M; Addepalli, Rama; Chen, Wei; Masci, Paul; Gobe, Glenda; Osborne, Simone A

    2016-12-31

    Waste generated from the processing of marine organisms for food represents an underutilized resource that has the potential to provide bioactive molecules with pharmaceutical applications. Some of these molecules have known anti-thrombotic and anti-coagulant activities and are being investigated as alternatives to common anti-thrombotic drugs, like heparin and warfarin that have serious side effects. In the current study, extracts prepared from blacklip abalone ( Haliotis rubra ) processing waste, using food grade enzymes papain and bromelain, were found to contain sulphated polysaccharide with anti-thrombotic activity. Extracts were found to be enriched with sulphated polysaccharides and assessed for anti-thrombotic activity in vitro through heparin cofactor-II (HCII)-mediated inhibition of thrombin. More than 60% thrombin inhibition was observed in response to 100 μg/mL sulphated polysaccharides. Anti-thrombotic potential was further assessed as anti-coagulant activity in plasma and blood, using prothrombin time (PT), activated partial thromboplastin time (aPTT), and thromboelastography (TEG). All abalone extracts had significant activity compared with saline control. Anion exchange chromatography was used to separate extracts into fractions with enhanced anti-thrombotic activity, improving HCII-mediated thrombin inhibition, PT and aPTT almost 2-fold. Overall this study identifies an alternative source of anti-thrombotic molecules that can be easily processed offering alternatives to current anti-thrombotic agents like heparin.

  4. Ceratose pilar e ulerythema ophryogenes em mulher com monossomia do braço curto do cromosomo 18 Keratosis pilaris and ulerythema ophryogenes in a woman with monosomy of the short arm of chromosome 18

    Directory of Open Access Journals (Sweden)

    Charles André Carvalho

    2011-08-01

    Full Text Available A monossomia parcial do braço curto do cromosomo 18 (síndrome do 18p caracteriza-se, principalmente, por atraso na aquisição da fala, retardo mental leve a moderado e baixa estatura. Relatamos o caso de uma paciente com esta síndrome associada à ceratose pilar extensa e ulerythema ophryogenes. Este é o quarto relato de caso que descreve tal associação, que desperta considerável interesse porque pode revelar uma região candidata a sede de genes responsáveis pela queratinização folicularPartial monosomy of the short arm of chromosome 18 (18p- syndrome is characterized mainly by speech delay, mild to moderate mental retardation and short stature. We describe a patient with the 18psyndrome and widespread severe keratosis pilaris and ulerythema ophryogenes. This is the fourth case in which such an association has been reported. This association is of considerable interest because it may uncover a candidate genomic region and help to identify the gene responsible for follicular keratinization

  5. Physiological Adjustments of Leaf Respiration to Atmospheric Warming in Betula alleghaniensis and Quercus rubra

    Energy Technology Data Exchange (ETDEWEB)

    Vollmar, A.; Gunderson, C.

    2006-01-01

    Global air temperatures are predicted to rise 1° to 4.5° Celsius by the year 2100. This climatic change is expected to have a great effect on the succession and migration of temperate deciduous forest species. Most physiologically based models of forest response to climatic change focus on the ecosystems as a whole instead of on individual tree species, assuming that the effects of warming on respiration are generally the same for each species, and that processes can not adjust to a changing climate. Experimental data suggest that physiological adjustments are possible, but there is a lack of data in deciduous species. In order to correctly model the effects of climate change on temperate species, species-specific respiration acclimation (adjustment) to rising temperatures is being determined in this experiment. Two temperate deciduous tree species Betula alleghaniensis (BA) and Quercus rubra (QR) were grown over a span of four years in open-top chambers and subjected to two different temperature treatments; ambient and ambient plus 4° Celsius (E4). Between 0530 hours and 1100 hours, respiration was measured over a range of leaf temperatures on several comparable, fully expanded leaves in each treatment. Circular punches were taken from the leaves and dried at 60°C to determine leaf mass per area (LMA). Respiration rates at a common temperature decreased by 15-18% in both species, and the entire resperation versus temperature curve shifted by at least 4°C, indicating a large degree of physiological acclimation. Foliar mass per area decreased with increasing growth temperature for both species. It can be concluded that there is a relationship between leaf respiration and foliar mass as it relates to respiratory acclimation, and that these two species had similar patterns of adjustment to warming.

  6. Differential effects of Radix Paeoniae Rubra (Chishao on cytokine and chemokine expression inducible by mycobacteria

    Directory of Open Access Journals (Sweden)

    Li James

    2011-03-01

    Full Text Available Abstract Background Upon initial infection with mycobacteria, macrophages secrete multiple cytokines and chemokines, including interleukin-6 (IL-6, IL-8 and tumor necrosis factor-α (TNF-α, to mediate host immune responses against the pathogen. Mycobacteria also induce the production of IL-10 via PKR activation in primary human monocytes and macrophages. As an anti-inflammatory cytokine, over-expression of IL-10 may contribute to mycobacterial evasion of the host immunity. Radix Paeoniae Rubra (RPR, Chishao, a Chinese medicinal herb with potentials of anti-inflammatory, hepatoprotective and neuroprotective effects, is used to treat tuberculosis. This study investigates the immunoregulatory effects of RPR on primary human blood macrophages (PBMac during mycobacterial infection. Methods The interaction of Bacillus Calmette-Guerin (BCG with PBMac was used as an experimental model. A series of procedures involving solvent extraction and fractionation were used to isolate bioactive constituents in RPR. RPR-EA-S1, a fraction with potent immunoregulatory effects was obtained with a bioactivity guided fractionation scheme. PBMac were treated with crude RPR extracts or RPR-EA-S1 before BCG stimulation. The expression levels of IL-6, IL-8, IL-10 and TNF-α were measured by qPCR and ELISA. Western blotting was used to determine the effects of RPR-EA-S1 on signaling kinases and transcriptional factors in the BCG-activated PBMac. Results In BCG-stimulated macrophages, crude RPR extracts and fraction RPR-EA-S1 specifically inhibited IL-10 production while enhanced IL-8 expression at both mRNA and protein levels without affecting the expressions of IL-6 and TNF-α. Inhibition of BCG-induced IL-10 expression by RPR-EA-S1 occurred in a dose- and time-dependent manner. RPR-EA-S1 did not affect the phosphorylation of cellular protein kinases including MAPK, Akt and GSK3β. Instead, it suppressed the degradation of IκBα in the cytoplasm and inhibited the

  7. Stabilization of metals in acidic mine spoil with amendments and red fescue (Festuca rubra L.) growth.

    Science.gov (United States)

    Simon, László

    2005-12-01

    Stabilization of metals with amendments and red fescue (Festuca rubra, cv. Keszthelyi 2) growth was studied on an acidic and phytotoxic mine spoil (pH(KCl) 3.20-3.26; Cd 7.1 mg kg(-1), Cu 120 mg kg(-1), Pb 2154 mg kg(-1) and Zn 605 mg kg(-1)) from Gyöngyösoroszi, Hungary in a pot experiment. Raising the pH above 5.0 by lime (CaCO(3)), and supplementing with 40 mg kg(-1)nitrogen (NH(4)NO(3)) made this material suitable for plant growth. All cultures were limed with 0.5% (m/m) CaCO(3) (treatment 1), which was combined with 5% (m/m) municipal sewage sludge compost (treatment 2), 5% (m/m) peat (treatment 3), 7.5% (m/m) natural zeolite (clinoptilolite) (treatment 4), and 0.5 (m/m) KH(2)PO(4) (treatment 5). Treatments 1-5 were combined with each other (treatment 6). After 60 days of red fescue growth, pH of the limed mine spoil decreased in all cultures units. Application of peat caused the highest pH decrease (1.15), while decrease of pH was less than 0.23 in treatments 2, 5 or 6. Application of lime significantly reduced concentrations of metals in the 'plant available' fraction of mine spoil compared to non-limed mine spoil. Amendments added to limed mine spoil changed variously the ratio of Cd, Cu, Pb and Zn in exchangeable or 'plant available' fractions, differently influencing the phytoavailability of these metals. Most of the metals were captured in the roots of test plants. Treatment 2 caused the appearance of less Cd in shoots (spoil, however the application of 0.5 phosphate was less favourable. Liming, application of amendments and growth of red fescue can stabilize metals in acidic and phytotoxic mine spoil, and by phytostabilization they can reduce the risk of metal contamination of the food chain.

  8. Influence of papermill sludge on growth of Medicago sativa, Festuca rubra and Agropyron trachycaulum in gold mine tailings: A greenhouse study

    International Nuclear Information System (INIS)

    Green, Scott; Renault, Sylvie

    2008-01-01

    A greenhouse study was undertaken to determine the suitability of adding papermill sludge to neutral/alkaline gold mine tailings to improve the establishment of Festuca rubra, Agropyron trachycaulum and Medicago sativa. Festuca rubra root and shoot biomass and A. Trachycaulum shoot biomass were increased with papermill sludge amendment. The addition of papermill sludge and fertilizer drastically increased the shoot and root biomass of M. sativa (20-30 times) while A. trachycaulum and F. rubra showed a more moderate increase in growth. Photosynthetic pigment content of the leaves was higher in papermill sludge treatments than in the treatments without papermill sludge. The organic carbon content, macro-aggregate content and field capacity of the gold mine tailings were increased while the bulk density was decreased by the addition of papermill sludge. This study suggests that addition of papermill sludge and adequate fertilization can alleviate some of the adverse conditions of neutral/alkaline gold mine tailings. - Addition of papermill sludge and adequate fertilization of neutral gold mine tailings increased growth of Medicago sativa, Festuca rubra and Agropyron trachycaulum

  9. Influence of overstory density on ecophysiology of red oak (Quercus rubra) and sugar maple (Acer saccharum) seedlings in central Ontario shelterwoods

    Science.gov (United States)

    William C. Parker; Daniel C. Dey

    2008-01-01

    A field experiment was established in a secondgrowth hardwood forest dominated by red oak (Quercus rubra L.) to examine the effects of shelterwood overstory density on leaf gas exchange and seedling water status of planted red oak, naturally regenerated red oak and sugar maple (Acer saccharum Marsh.) seedlings during the first...

  10. Immunostimulation in the urinary bladder by local application of Nocardia rubra cell wall skeleton preparation (Rubratin) for superficial bladder cancer immunotherapy--a phase I/II study

    NARCIS (Netherlands)

    de Reijke, T. M.; de Boer, E. C.; Schamhart, D. H.; Kurth, K. H.

    1997-01-01

    Twelve patients with superficial papillary transitional cell carcinoma of the bladder (pTa, pT1) were treated with six consecutive weekly intravesical instillations of Rubratin (in a dose of 1.5, 3.0, or 4.5 mg), a cell wall skeleton preparation of Nocardia rubra (NCW). The main objective of this

  11. Philometra rubra (Nematoda: Philometridae) first description of the male from striped bass (Morone saxatilis) and implications for re-introduction of an extirpated population

    Czech Academy of Sciences Publication Activity Database

    Measures, L.; Moravec, František; Douglas, S.; Lair, S.

    2017-01-01

    Roč. 95, č. 5 (2017), s. 345-352 ISSN 0008-4301 R&D Projects: GA ČR(CZ) GBP505/12/G112 Institutional support: RVO:60077344 Keywords : Philometra rubra * striped bass * Morone saxatilis * re-introduction * conservation Subject RIV: EG - Zoology OBOR OECD: Zoology Impact factor: 1.347, year: 2016

  12. Wong-Type Dermatomyositis Showing Porokeratosis-Like Changes (Columnar Dyskeratosis: A Case Report and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Nicole Umanoff

    2015-01-01

    Full Text Available Background: Wong-type dermatomyositis (DM exhibits simultaneous pityriasis rubra pilaris (PRP features. Case Report: A 50-year-old woman presented with a heliotrope rash, Gottron's papules, and a poikilodermic, erythematous rash in shawl distribution without evidence of muscle weakness. Despite topical corticosteroids, the eruption progressed 9 months later to include generalized hyperkeratotic follicular papules, islands of sparing, and atrophic macules with a collarette of scale suggestive of porokeratosis. Mild dysphonia was the only sign of muscle weakness. Serology showed positive ANA. Histopathology revealed interface dermatitis with dermal mucin and melanophages, irregular psoriasiform hyperplasia, alternating mounds of para- and orthokeratosis, and tiers of dyskeratotic cells (columnar dyskeratosis. Systemic corticosteroid therapy was not tolerated; acitretin diminished the hyperkeratosis. While hyperpigmentation persisted, no progression of cutaneous or muscular symptoms has occurred after 22 months of follow-up and cessation of the therapy. Overall, her course did not differ from the natural history documented in the literature review of Wong-type DM. The most similar case also exhibited pseudocornoid lamella changes. Conclusion: Wong-type DM is a clinicopathologic DM-PRP hybrid that can also exhibit porokeratosis-like features best described as columnar dyskeratosis. Recognizing these types of lesions in DM is warranted in order to make an accurate assessment of their prognostic significance.

  13. Significance of clinicopathological correlation in psoriasis

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    Gopal Ambadasrao Pandit

    2015-01-01

    Full Text Available Context: Psoriasis affects about 1.5% to 3% of world′s population. Other papulosquamous dermatoses are Pityriasis rosea, Lichen planus, Seborrheic dermatitis, Pityriasis rubra pilaris and Parapsoriasis. Drug eruptions, tinea corporis, and secondary syphilis may also have papulosquamous morphology. Because all papulosquamous disorders are characterized by scaling papules, clinical confusion may result during their diagnosis. Separation of each of these becomes important because the treatment and prognosis for each tends to be disease-specific. Aim: To study the pattern of clinical and histopathological features of psoriasis of the skin with clinicopathological correlation. Material and methods: The present study of 42 cases of psoriasis of the skin was carried out in the Department of Pathology of a tertiary care centre from December 2009 to October 2011. In this study, the patients which were clinically diagnosed as psoriasis of skin, before starting the treatment and attending the outdoor skin department were selected. Histopathological findings were interpreted in light of clinical details. Results: Out of 42 cases of psoriasis 24 (57.14% were males, 18 (42.86% were females with male to female ratio of 1.33:1. Mean age was 34.45 years. Maximum number of cases 22 (52.38% were encountered in 3rd and 4th decade of life. Histopathological findings: parakeratosis, acanthosis, suprapapillary thinning, Munro microabscesses and hypogranulosis were noted in most of the cases. Conclusion: Histopathology serves as a diagnostic tool and rules out other lesions which mimic psoriasis. The most accurate diagnosis is the one that most closely correlates with clinical outcome and helps to direct the most appropriate clinical intervention.

  14. [Differences between cold and hot natures of processed Radix ginseng rubra and Panax quinquefolius L. based upon mice temperature tropism].

    Science.gov (United States)

    Zhang, Xue-Ru; Zhao, Yan-Ling; Wang, Jia-Bo; Zhou, Can-Ping; Liu, Ta-Si; Zhao, Hai-Ping; Ren, Yong-Shen; Yan, Dan; Xiao, Xiao-He

    2009-07-28

    To establish an objective method to estimate the disparity between the cold and hot natures on the basis of an intrinsic correlation between temperature tropism of mice and the cold and hot natures of Chinese medicines. Male KM mice were randomly divided into 7 groups of 6 each, namely the normal group (NM), the weak model group (WM), the strong model group (SM), the weak model plus Radix ginseng rubra group (WM + RG), the weak model plus Panax quinquefolius L. group (WM + PQ), the strong model plus Radix ginseng rubra group (SM + RG) and the strong model plus Panax quinquefolius L. group (SM +PQ). The specific herbal drugs were administered intragastricly. To induce the weak model, mice were fed with a limited supply of feed and forced to swim in cold water until almost drowning while the strong model induced by feeding a high-protein diet with an unlimited feed access. The doses of Radix ginseng rubra and Panax quinquefolius L. were 35 mg/g of body weight per day (counted by the quantity of crude material) and lasting for seven days. The NM and model groups without dosing were intragastricly administered with physiological saline of the same volume to the dosing groups. The percentage of the remaining time of mouse on a high temperature (40 degrees C) pad to the total monitoring time was recorded by a self-designed intelligent animal behavior monitoring system. Meanwhile, the drinking volume of mice in each group was measured. Immediately after experiment, the activities of Na(+)K(+)-ATPase and superoxide dismutase (SOD) in liver tissue were measured by assay kits of phosphorus and xanthine oxidase methods respectively. The features of deficient and cold symptom, such as fatigue, stagnant weight growth, decreased water intake, cold limbs and tail etc, were observed in WM group. And the features of heat symptom, such as increased weight and water intake, hyperactivity etc, were observed in SM group. The percentage of time that the mouse remained on 40 degrees C

  15. Isospora cardellinae n. sp. (Apicomplexa: Eimeriidae) from the red warbler Cardellina rubra (Swainson) (Passeriformes: Parulidae) in Mexico.

    Science.gov (United States)

    Salgado-Miranda, Celene; Medina, Juan Pablo; Zepeda-Velázquez, Andrea Paloma; García-Conejo, Michele; Galindo-Sánchez, Karla Patricia; Janczur, Mariusz Krzysztof; Soriano-Vargas, Edgardo

    2016-10-01

    A new coccidian species (Protozoa: Apicomplexa: Eimeriidae) collected from the red warbler Cardellina rubra (Swainson) is reported from the Nevado de Toluca National Park, Mexico. Isospora cardellinae n. sp. has subspherical oöcysts, measuring on average 26.6 × 25.4 μm, with smooth, bi-layered wall, c.1.3 μm thick. Micropyle, oöcyst residuum, and polar granule are absent. Sporocysts are ovoidal, measuring on average 19.0 × 12.0 µm, with a knob-like Stieda body, a trapezoidal sub-Stieda body and sporocyst residuum composed of scattered spherules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. This is the fourth description of an isosporoid coccidian infecting a New World warbler.

  16. Surgical and medical management for fractures of the second through fifth metacarpals in a red ruffed lemur (Varecia rubra).

    Science.gov (United States)

    Cerveny, Shannon N S; Harper, Justin; Voges, Andra; Coke, Rob L

    2013-03-01

    A 21-yr-old female red ruffed lemur (Varecia rubra) was presented with swelling and disuse of the right manus. Severely displaced fractures of metacarpals II-V were diagnosed radiographically. The fractures were surgically stabilized with intramedullary Kirschner wires attached externally with an acrylic external fixator and a bone plate on the dorsal aspect of metacarpal III. The fractures of metacarpals II-V were predominantly healed on radiographs obtained 12 wk after surgery. However, diffuse disuse osteopenia and phalangeal contracture were present, with possible osteomyelitis. An exercise regimen of the affected hand was initiated due to the incomplete extension of the phalanges. After 4 wk of therapy, the extension of the phalanges had improved and the fractures appeared radiographically to be nearly completely healed. Although metacarpal fractures are common in nonhuman primates, they are reported infrequently in the literature.

  17. Fungal endophyte (Epichloë festucae alters the nutrient content of Festuca rubra regardless of water availability.

    Directory of Open Access Journals (Sweden)

    Beatriz R Vázquez-de-Aldana

    Full Text Available Festuca rubra plants maintain associations with the vertically transmitted fungal endophyte Epichloë festucae. A high prevalence of infected host plants in semiarid grasslands suggests that this association could be mutualistic. We investigated if the Epichloë-endophyte affects the growth and nutrient content of F. rubra plants subjected to drought. Endophyte-infected (E+ and non-infected (E- plants of two half-sib lines (PEN and RAB were subjected to three water availability treatments. Shoot and root biomass, nutrient content, proline, phenolic compounds and fungal alkaloids were measured after the treatments. The effect of the endophyte on shoot and root biomass and dead leaves depended on the plant line. In the PEN line, E+ plants had a greater S:R ratio than E-, but the opposite occurred in RAB. In both plant lines and all water treatments, endophyte-infected plants had greater concentrations of N, P and Zn in shoots and Ca, Mg and Zn in roots than E- plants. On average, E+ plants contained in their shoots more P (62%, Zn (58% and N (19% than E- plants. While the proline in shoots increased in response to water stress, the endophyte did not affect this response. A multivariate analysis showed that endophyte status and plant line impose stronger differences in the performance of the plants than the water stress treatments. Furthermore, differences between PEN and RAB lines seemed to be greater in E- than in E+ plants, suggesting that E+ plants of both lines are more similar than those of their non-infected version. This is probably due to the endophyte producing a similar effect in both plant lines, such as the increase in N, P and Zn in shoots. The remarkable effect of the endophyte in the nutrient balance of the plants could help to explain the high prevalence of infected plants in natural grasslands.

  18. Anti-inflammatory, antinociceptive, and antipyretic effects of methanol extract of Cariniana rubra stem bark in animal models

    Directory of Open Access Journals (Sweden)

    Edson N. Santos

    2011-06-01

    Full Text Available Cariniana rubra Miers (Lecythidaceae, popularly known as "jequitibá-vermelho'', is a large Brazilian tree whose bark is used in infusion and decoction for the treatment of inflammatory conditions. This study aims to assess the anti-inflammatory, antinociceptive, and antipyretic effects of Cariniana rubra methanolic stem bark extract (EM Cr using experimental animals. Anti-inflammatory activity of EM Cr was tested on carrageenan and dextran-induced rat paw edema, carrageenan-induced pleurisy in rats and acetic acid-increase vascular permeability in mice. Antinociceptive and antipyretic activities were evaluated using acetic acid-induced writhing, formalin and hot-plate tests in mice, as well as brewer's yeast-induced pyrexia in rats. The extract inhibitied carrageenan and dextran-induced edema, reduced exudate volume and leukocyte migration on the carrageenan-induced pleurisy and on the vascular permeability increase induced by acetic acid. The EM Cr inhibited nociception on the acetic acid-induced writhing and in the second phase of formalin test, and decreased rectal temperature. It was, however, inactive against thermal nociception.Phytochemical analysis with EM Cr showed the occurrence of saponins, triterpenes, sterols and phenolic compounds. Phytosterols (β-sitosterol, stigmasterol, pentacyclic triterpenes (α- and β-amyrin as a mixture, arjunolic acid, a phytosterol glycoside (sitosterol 3-O-β-D-glucopyranoside, and triterpenoid saponins (28-β-glucopyranosyl-23-O-acetyl arjunolic acid; 3-O-β-glucopyranosyl arjunolic acid and 28-O-[α-L-Rhamnopyranosyl-(1→2-β-glucopyranosyl]-23- O-acetyl arjunolic acid were the main identified compounds. It can be presumed that EM Cr caused their effects by inhibiting the liberation and/or action of different inflammatory mediators. These findings support the traditional use of Cariniana rubra preparations to treat inflammation.Cariniana rubra Miers (Lecythidaceae, popularmente conhecido como

  19. Gianotti-Crosti syndrome, pityriasis rosea, asymmetrical periflexural exanthem, unilateral mediothoracic exanthem, eruptive pseudoangiomatosis and papular-purpuric gloves and socks syndrome: a brief review and arguments for diagnostic criteria

    Directory of Open Access Journals (Sweden)

    Antonio Chuh

    2012-02-01

    Full Text Available Several exanthems including Gianotti-Crosti syndrome, pityriasis rosea, asymmetrical periflexural exanthem, eruptive pseudoangiomatosis, and papular-purpuric gloves and socks syndrome are suspected to be caused by viruses. These viruses are potentially dangerous. Gianotti-Crosti syndrome is related to hepatitis B virus infection which is the commonest cause of hepatocellular carcinoma, and Epstein-Barr virus infection which is related to nasopharyngeal carcinoma. Pityriasis rosea has been suspected to be related to human herpesvirus 7 and 8 infections, with the significance of the former still largely unknown, and the latter being a known cause of Kaposi’s sarcoma. Papular-purpuric gloves and socks syndrome is significantly associated with human B19 erythrovirus infection which can lead to aplastic anemia in individuals with congenital hemoglobinopathies, and when transmitted to pregnant women, can cause spontaneous abortions and congenital anomalies. With viral DNA sequence detection technologies, false positive results are common. We can no longer apply Koch’s postulates to establish causeeffect relationships. Biological properties of some viruses including lifelong latent infection, asymptomatic shedding, and endogenous reactivation render virological results on various body tissues difficult to interpret. We might not be able to confirm or refute viral causes for these rashes in the near future. Owing to the relatively small number of patients, virological and epidemiology studies, and treatment trials usually recruit few study and control subjects. This leads to low statistical powers and thus results have little clinical significance.

  20. New ribosome-inactivating proteins with polynucleotide:adenosine glycosidase and antiviral activities from Basella rubra L. and bougainvillea spectabilis Willd.

    Science.gov (United States)

    Bolognesi, A; Polito, L; Olivieri, F; Valbonesi, P; Barbieri, L; Battelli, M G; Carusi, M V; Benvenuto, E; Del Vecchio Blanco, F; Di Maro, A; Parente, A; Di Loreto, M; Stirpe, F

    1997-12-01

    New single-chain (type 1) ribosome-inactivating proteins (RIPs) were isolated from the seeds of Basella rubra L. (two proteins) and from the leaves of Bougainvillea spectabilis Willd. (one protein). These RIPs inhibit protein synthesis both in a cell-free system, with an IC50 (concentration causing 50% inhibition) in the 10(-10) M range, and by various cell lines, with IC50S in the 10(-8)-10(-6) M range. All three RIPs released adenine not only from rat liver ribosomes but also from Escherichia coli rRNA, polyadenylic acid, herring sperm DNA, and artichoke mottled crinkle virus (AMCV) genomic RNA, thus being polynucleotide:adenosine glycosidases. The proteins from Basella rubra had toxicity to mice similar to that of most type 1 RIPs (Barbieri et al., 1993, Biochim Biophys Acta 1154: 237-282) with an LD50 (concentration that is 50% lethal) Bougainvillea spectabilis had an LD50 > 32 mg.kg-1. The N-terminal sequence of the two RIPs from Basella rubra had 80-93% identity, whereas it differed from the sequence of the RIP from Bougainvillea spectabilis. When tested with antibodies against various RIPs, the RIPs from Basella gave some cross-reactivity with sera against dianthin 32, and weak cross-reactivity with momordin I and momorcochin-S, whilst the RIP from Bougainvillea did not cross-react with any antiserum tested. An RIP from Basella rubra and one from Bougainvillea spectabilis were tested for antiviral activity, and both inhibited infection of Nicotiana benthamiana by AMCV.

  1. Reduced translocation of current photosynthate precedes changes in gas exchange for Quercus rubra seedlings under flooding stress.

    Science.gov (United States)

    Sloan, Joshua L; Islam, M Anisul; Jacobs, Douglass F

    2016-01-01

    Northern red oak (Quercus rubra L.) seedlings are frequently planted on suboptimal sites in their native range in North America, subjecting them to environmental stresses, such as flooding, for which they may not be well adapted. Members of the genus Quercus exhibit a wide range of responses to flooding, and responses of northern red oak to flooding remain inadequately described. To better understand the physiological effects of root system inundation in post-transplant northern red oak seedlings and the effects of flooding on endogenous patterns of resource allocation within the plant, we observed the effects of short-term flooding initiated at the linear shoot growth stage on net photosynthetic rates, dark respiration, chlorophyll fluorescence (Fv/Fm) and translocation of (13)C-labeled current photosynthate. Downward translocation of current photosynthate declined after 4 days of flooding and was the first measured physiological response to flooding; net photosynthetic rates decreased and dark respiration rates increased after 7 days of flooding. Short-term flooding did not affect maximal potential efficiency of photosystem II (Fv/Fm). The finding that decreased downward translocation of (13)C-labeled current photosynthate preceded reduced net photosynthesis and increased dark respiration during flooding suggests the occurrence of sink-limited photosynthesis under these conditions. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  2. Nocardia rubra cell-wall skeleton promotes CD4+ T cell activation and drives Th1 immune response.

    Science.gov (United States)

    Wang, Guangchuan; Wu, Jie; Miao, Miao; Dou, Heng; Nan, Ning; Shi, Mingsheng; Yu, Guang; Shan, Fengping

    2017-08-01

    Several lines of evidences have shown that Nocardia rubra cell wall skeleton (Nr-CWS) has immunoregulatory and anti-tumor activities. However, there is no information about the effect of Nr-CWS on CD4 + T cells. The aim of this study was to explore the effect of Nr-CWS on the phenotype and function of CD4 + T cells. Our results of in vitro experiments showed that Nr-CWS could significantly up-regulate the expression of CD69 and CD25 on CD4 + T cells, promote the proliferation of CD4 + T cells, increase the production of IFN-γ, TNF-α and IL-2 in the supernatants, but has no significant effect on the apoptosis and death of CD4 + T cells. Results of in vivo experiments showed that Nr-CWS could promote the proliferation of CD4 + T cells, and increase the production of IL-2, IFN-γ and TNF-α (Th1 type cytokines). These data suggest that Nr-CWS can enhance the activation of CD4 + T cells, promote the proliferation of CD4 + T cells and the differentiation of CD4 + T cells to Th1 cells. Copyright © 2017 Elsevier B.V. All rights reserved.

  3. Biomedical evaluation of free-ranging red ruffed lemurs (Varecia rubra) within the Masoala National Park, Madagascar.

    Science.gov (United States)

    Dutton, Christopher J; Junge, Randall E; Louis, Edward E

    2008-03-01

    Complete health assessments were performed on 22 adult red ruffed lemurs (Varecia rubra), comprising nine males and 13 females, found within the Masoala National Park in northeast Madagascar. Each animal was anesthetized using tiletamine and zolazepam and underwent a thorough physical examination, including measurement of its weight and vital signs; blood collection for hematology, plasma total protein concentration, serum chemistries, fat-soluble vitamins, trace minerals, assessment of iron metabolism, toxoplasmosis serology, viral serologies, and examination for hemoparasites; fecal collection for bacterial culture and parasite examination; and collection of a representative number of any ectoparasites. Comparison of blood values with those of captive lemurs demonstrated a number of significant differences thought to be associated with physiologic state (e.g., reproductive stage and stress), hydration, and diet. There was no evidence of serious infectious diseases, and hemoparasites were not detected. The enteric flora appeared unremarkable; however, results may have been skewed toward more cold-tolerant bacteria. The fecal parasite burden was low. Lemurostrongylus spp. was identified in two of the lemurs, and there were moderate numbers of Laelapidae mites present on approximately one third of the lemurs. This study demonstrated the substantial amount of data that can be collected from free-ranging populations, considered invaluable in the management of captive populations, in reducing the incidence of captivity-related diseases, and in the risk assessment associated with reintroduction programs.

  4. In vitro anti-thrombotic and anti-coagulant properties of blacklip abalone (Haliotis rubra) viscera hydrolysate.

    Science.gov (United States)

    Suleria, Hafiz Ansar Rasul; Masci, Paul P; Addepalli, Rama; Chen, Wei; Gobe, Glenda C; Osborne, Simone A

    2017-07-01

    Abalone viscera contain sulphated polysaccharides with anti-thrombotic and anti-coagulant activities. In this study, a hydrolysate was prepared from blacklip abalone (Haliotis rubra) viscera using papain and bromelain and fractionated using ion exchange and size exclusion chromatography. Hydrolysates and fractions were investigated for in vitro thrombin inhibition mediated through heparin cofactor II (HCII) as well as anti-coagulant activity in plasma and whole blood. On the basis of sulphated polysaccharide concentration, the hydrolysate inhibited thrombin through HCII with an inhibitor concentration at 50% (IC50) of 16.5 μg/mL compared with 2.1 μg/mL for standard heparin. Fractionation concentrated HCII-mediated thrombin inhibition down to an IC50 of 1.8 μg/mL and improved anti-coagulant activities by significantly delaying clotting time. This study confirmed the presence of anti-thrombotic and anti-coagulant molecules in blacklip abalone viscera and demonstrated that these activities can be enriched with a simple chromatography regime. Blacklip abalone viscera warrant further investigation as a source of nutraceutical or functional food ingredients. Graphical abstract Schematic showing preparation of bioactive extracts and fractions from blacklip abalone.

  5. Coordinated regulation of anthocyanin biosynthesis in Chinese bayberry (Myrica rubra) fruit by a R2R3 MYB transcription factor.

    Science.gov (United States)

    Niu, Shan-Shan; Xu, Chang-Jie; Zhang, Wang-Shu; Zhang, Bo; Li, Xian; Lin-Wang, Kui; Ferguson, Ian B; Allan, Andrew C; Chen, Kun-Song

    2010-03-01

    Chinese bayberry (Myrica rubra) is a fruit crop with cultivars producing fruit ranging from white (Shuijing, SJ) to red (Dongkui, DK) and dark red-purple (Biqi, BQ), as a result of different levels of anthocyanin accumulation. Genes encoding the anthocyanin biosynthesis enzymes chalcone synthase, chalcone isomerase, flavanone 3-hydroxylase (F3H), flavonoid 3'-hydroxylase (F3'H), dihydroflavonol 4-reductase (DFR), anthocyanidin synthase (ANS) and UDPglucose: flavonoid 3-O-glucosyltransferase (UFGT), as well as MrMYB1, a R2R3 MYB transcription factor homologous to known activators of anthocyanin biosynthesis, were isolated from ripe fruit of BQ. Differences in mRNA abundance of MrF3H, MrF3'H, MrDFR1, MrANS and MrUFGT were highly correlated with differential accumulation of anthocyanins between cultivars, suggesting coordinated regulation by transcription factors. The transcript level of MrMYB1 was strongly associated with the anthocyanin content in ripe fruit of the three cultivars, as well as different anthocyanin containing tissues of BQ fruit. Fruit bagging strongly inhibited anthocyanin accumulation in fruit as well as the expression of all anthocyanin biosynthetic genes and MrMYB1. Overexpression of MrMYB1 stimulated both anthocyanin accumulation and activated an Arabidopsis-DFR promoter in tobacco (Nicotiana tabacum). MrMYB1d, an allele with a 1 bp deletion at nucleotide 30 of coding sequence, was observed in SJ and DK fruit, suggesting that a nonsense mutation of the MYB1 protein may be responsible for no or low expression of MYB1 in the white and red fruit. These results show that coordinated expression of multiple biosynthetic genes is involved in anthocyanin accumulation in Chinese bayberry fruit, and this is regulated by MrMYB1.

  6. Alteration of foliar flavonoid chemistry induced by enhanced UV-B radiation in field-grown Pinus ponderosa, Quercus rubra and Pseudotsuga menziesii.

    Science.gov (United States)

    Warren, Jeffrey M; Bassman, John H; Mattinson, D Scott; Fellman, John K; Edwards, Gerald E; Robberecht, Ronald

    2002-03-01

    Chromatographic analyses of foliage from several tree species illustrate the species-specific effects of UV-B radiation on both quantity and composition of foliar flavonoids. Pinus ponderosa, Quercus rubra and Pseudotsuga menziesii were field-grown under modulated ambient (1x) and enhanced (2x) biologically effective UV-B radiation. Foliage was harvested seasonally over a 3-year period, extracted, purified and the flavonoid fraction applied to a mu Bondapak/C(18) column HPLC system sampling at 254 nm. Total flavonoid concentrations in Quercus rubra foliage were more than twice (leaf area basis) that of the other species; Pseudotsuga menziesii foliage had intermediate levels and P. ponderosa had the lowest concentrations of total flavonoids. No statistically significant UV-B radiation-induced effects were found in total foliar flavonoid concentrations for any species; however, concentrations of specific compounds within each species exhibited significant treatment effects. Higher (but statistically insignificant) levels of flavonoids were induced by UV-B irradiation in 1- and 2-year-old P. ponderosa foliage. Total flavonoid concentrations in 2-year-old needles increased by 50% (1x ambient UV-B radiation) or 70% (2x ambient UV-B radiation) from that of 1-year-old tissue. Foliar flavonoids of Q. rubra under enhanced UV-B radiation tended to shift from early-eluting compounds to less polar flavonoids eluting later. There were no clear patterns of UV-B radiation effects on 1-year-old P. menziesii foliage. However, 2-year-old tissue had slightly higher foliar flavonoids under the 2x UV-B radiation treatment compared to ambient levels. Results suggest that enhanced UV-B radiation will alter foliar flavonoid composition and concentrations in forest tree species, which could impact tissue protection, and ultimately, competition, herbivory or litter decomposition.

  7. Screening the wetland plant species Alisma plantago-aquatica, Carex rostrata and Phalaris arundinacea for innate tolerance to zinc and comparison with Eriophorum angustifolium and Festuca rubra Merlin

    International Nuclear Information System (INIS)

    Matthews, David J.; Moran, Bridget M.; Otte, Marinus L.

    2005-01-01

    Several wetland plant species appear to have constitutive metal tolerance. In previous studies, populations from contaminated and non-contaminated sites of the wetland plants Typha latifolia, Phragmites australis, Glyceria fluitans and Eriophorum angustifolium were found to be tolerant to high concentrations of metals. This study screened three other species of wetland plants: Alisma plantago-aquatica, Carex rostrata and Phalaris arundinacea for innate tolerance to zinc. The degree of tolerance was compared to known zinc-tolerant E. angustifolium and Festuca rubra Merlin. It was found that A. plantago-aquatica and P. arundinacea did not posses innate tolerance to zinc, but that C. rostrata was able to tolerate elevated levels of zinc, at levels comparable to those tolerated by E. angustifolium and F. rubra Merlin. The findings support the theory that some wetland angiosperm species tend to be tolerant to exposure to high levels of metals, regardless of their origin. - Some wetland angiosperms are tolerant to high concentrations of metals, regardless of conditions in the plants' natural habitat

  8. Screening the wetland plant species Alisma plantago-aquatica, Carex rostrata and Phalaris arundinacea for innate tolerance to zinc and comparison with Eriophorum angustifolium and Festuca rubra Merlin

    Energy Technology Data Exchange (ETDEWEB)

    Matthews, David J. [Wetland Ecology Research Group, Department of Botany, University College Dublin, Belfield, Dublin 4 (Ireland)]. E-mail: davematt00@hotmail.com; Moran, Bridget M. [Wetland Ecology Research Group, Department of Botany, University College Dublin, Belfield, Dublin 4 (Ireland); Otte, Marinus L. [Wetland Ecology Research Group, Department of Botany, University College Dublin, Belfield, Dublin 4 (Ireland)

    2005-03-01

    Several wetland plant species appear to have constitutive metal tolerance. In previous studies, populations from contaminated and non-contaminated sites of the wetland plants Typha latifolia, Phragmites australis, Glyceria fluitans and Eriophorum angustifolium were found to be tolerant to high concentrations of metals. This study screened three other species of wetland plants: Alisma plantago-aquatica, Carex rostrata and Phalaris arundinacea for innate tolerance to zinc. The degree of tolerance was compared to known zinc-tolerant E. angustifolium and Festuca rubra Merlin. It was found that A. plantago-aquatica and P. arundinacea did not posses innate tolerance to zinc, but that C. rostrata was able to tolerate elevated levels of zinc, at levels comparable to those tolerated by E. angustifolium and F. rubra Merlin. The findings support the theory that some wetland angiosperm species tend to be tolerant to exposure to high levels of metals, regardless of their origin. - Some wetland angiosperms are tolerant to high concentrations of metals, regardless of conditions in the plants' natural habitat.

  9. Leaf anatomical changes in Populus trichocarpa, Quercus rubra, Pseudotsuga menziesii and Pinus ponderosa exposed to enhanced ultraviolet-B radiation

    International Nuclear Information System (INIS)

    Nagel, L.M.; Bassman, J.H.; Edwards, G.E.; Robberecht, R.; Franceshi, V.R.

    1998-01-01

    Leaf anatomical characteristics are important in determining the degree of injury sustained when plants are exposed to natural and enhanced levels of ultraviolet-B (UV-B) radiation (280–320 nm). The degree to which leaf anatomy can adapt to the increasing levels of UV-B radiation reaching the earth's surface is poorly understood in most tree species. We examined four tree species, representing a wide range of leaf anatomical characteristics, to determine responses of leaf area, specific leaf weight, and leaf tissue parameters after exposure to ambient and enhanced levels of UV-B radiation. Seedlings were grown in a greenhouse with photosynthetically active radiation of 39 mol m −2 day −1 and under one of three daily irradiances of biologically effective UV-B radiation (UV-BBE) supplied for 10 h per day: (1) approximate ambient level received at Pullman, Washington on June 21 (1 x ); two times ambient (2 x ), or three times ambient (3 x ). We hypothesized the response of each species to UV-B radiation would be related to inherent anatomical differences. We found that the conifers responded anatomically to nearly an equal degree as the broad-leaved trees, but that different tissues were involved. Populus trichocarpa, an indeterminate broadleaf species, showed significantly thicker palisade parenchyma in recently mature leaves at the 3 x level and in older leaves under the 2 x level. In addition, individual leaf area was generally greater with increased UV-B irradiance. Quercus rubra, a semi-determinate broadleaf species, exhibited significantly thicker palisade parenchyma at the 2 x and 3 x levels as compared to controls. Psuedotsuga menziesii, an evergreen coniferous species with bifacially flattened needles, and Pinus ponderosa, an evergreen coniferous species with a complete hypodermis, showed no significant change in leaf area or specific leaf weight under enhanced UV-B radiation. Epidermal thickness was unchanged in P. menziesii. However, P. ponderosa

  10. Immunostimulation in the urinary bladder by local application of Nocardia rubra cell-wall skeletons (Rubratin) and bacillus Calmette-Guérin as therapy for superficial bladder cancer: a comparative study

    NARCIS (Netherlands)

    de Boer, E. C.; de Reijke, T. M.; Vos, P. C.; Kurth, K. H.; Schamhart, D. H.

    2000-01-01

    Twelve patients with superficial bladder cancer were treated with intravesical instillations of Rubratin (ASTA Pharma AG, Frankfurt, Germany), a cell-wall preparation of Nocardia rubra. The objective was to compare the immunostimulating effect of Rubratin with that of bacillus Calmette-Guérin (BCG).

  11. Presence of understory shrubs constrains carbon gain in sunflecks by advance-regeneration seedlings: evidence from Quercus Rubra seedling grouwing in understory forest patches with or without evergreen shrubs present

    Science.gov (United States)

    E.T. Nilsen; T.T. Lei; S.W. Semones

    2009-01-01

    We investigated whether dynamic photosynthesis of understory Quercus rubra L. (Fagaceae) seedlings can acclimate to the altered pattern of sunflecks in forest patches with Rhododendron maximum L. (Ericaceae), an understory evergreen shrub. Maximum photosynthesis (A) and total CO2 accumulated during lightflecks was greatest for 400-s lightflecks, intermediate for 150-s...

  12. Evaluation of in vitro antidiabetic and antioxidant characterizations of Elettaria cardamomum (L.) Maton (Zingiberaceae), Piper cubeba L. f. (Piperaceae), and Plumeria rubra L. (Apocynaceae).

    Science.gov (United States)

    Ahmed, Afnan Sh; Ahmed, Qamaruddin; Saxena, Anil Kumar; Jamal, Parveen

    2017-01-01

    Inhibition of intestinal α-amylase and α-glucosidase is an important strategy to regulate diabetes mellitus (DM). Antioxidants from plants are widely regarded in the prevention of diabetes. Fruits of Elettaria cardamomum (L.) Maton (Zingiberaceae) and Piper cubeba L. f. (Piperaceae) and flowers of Plumeria rubra L. (Apocynaceae) are traditionally used to cure DM in different countries. However, the role of these plants has been grossly under reported and is yet to receive proper scientific evaluation with respect to understand their traditional role in the management of diabetes especially as digestive enzymes inhibitors. Hence, methanol and aqueous extracts of the aforementioned plants were evaluated for their in vitro α-glucosidase and α-amylase inhibition at 1 mg/mL and quantification of their antioxidant properties (DPPH, FRAP tests, total phenolic and total flavonoids contents). In vitro optimization studies for the extracts were also performed to enhance in vitro biological activities. The % inhibition of α-glucosidase by the aqueous extracts of the fruits of E. cardamomum, P. cubeba and flowers of P. rubra were 10.41 (0.03), 95.19 (0.01), and -2.92 (0.03), while the methanol extracts exhibited % inhibition 13.73 (0.02), 92.77 (0.01), and -0.98 (0.01), respectively. The % inhibition of α-amylase by the aqueous extracts were 82.99 (0.01), 64.35 (0.01), and 20.28 (0.02), while the methanol extracts displayed % inhibition 39.93 (0.01), 31.06 (0.02), and 39.40 (0.01), respectively. Aqueous extracts displayed good in vitro antidiabetic and antioxidant activities. Moreover, in vitro optimization experiments helped to increase the α-glucosidase inhibitory activity of E. cardamomum. Our findings further justify the traditional claims of these plants as folk medicines to manage diabetes, however, through digestive enzymes inhibition effect.

  13. Acitretin in pediatric dermatoses

    Directory of Open Access Journals (Sweden)

    Manjyot Gautam

    2016-01-01

    Full Text Available Acitretin, a synthetic retinoid and the active metabolite of etretinate has been increasingly used over the past two decades. It has proved effective in the treatment of many conditions associated with hyperkeratosis and dyskeratosis. A Google scholar search for the use of acitretin in pediatric dermatoses was done using the words “pediatric dermatoses,” “acitretin,” “etretinate,” “systemic retinoids,” “psoriasis,” “pityriasis rubra pilaris,” “ichthyoses,” “disorders of keratinization,” “Darier's disease,” “palmoplantar keratoderma,” “verrucae,” “lichen planus,” “lupus erythematosus,” and “lichen sclerosus.” All the articles were retrieved and classified into review articles, studies, double-blinded trials, and case reports. The final data were then analyzed and presented in a narrative fashion. It has been found that acitretin is useful in a number of pediatric dermatoses. It is preferred over other drugs in pustular psoriasis. Good results can be obtained in various disorders of keratinization, and it may even prove life-saving in conditions like harlequin ichthyosis. However, long-term maintenance therapy is required and exacerbations are known on discontinuing the drug. It can also be used as alternative therapy for many other pediatric dermatoses where the primary treatment has failed. Acitretin should be used even in children for the proper indications. However, proper clinical and laboratory surveillance has to be maintained in patients on long-term acitretin.

  14. Pitiríase versicolor: isolamento e identificação das principais espécies de Malassezia Pityriasis versicolor: isolation and identification of the main species

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    Valéria Maria de Souza Framil

    2010-02-01

    Full Text Available As espécies do gênero Malassezia isoladas foram: Malassezia sympodialis (16,66%, Malassezia furfur (12,50%, Malassezia globosa (11,45% e Malassezia slooffiae (2,10%. A Malassezia sympodialis foi a espécie que predominou em nosso estudo. As espécies de Malassezia identificadas não mostraram correlação com as variantes clínicas e com a distribuição das lesões de pitiríase versicolor quanto às regiões do corpo.Species of the genus Malassezia isolated were: Malassezia sympodialis (16.66%, Malassezia furfur (12.50%, Malassezia globosa (11.45%, and Malassezia slooffiae (2.10%. Malassezia sympodialis predominated in the study. The species of Malassezia identified did not show correlation with clinical variants and with the distribution of pityriasis versicolor lesions in relation to areas of the body.

  15. Draft Genome of Scalindua rubra, Obtained from the Interface Above the Discovery Deep Brine in the Red Sea, Sheds Light on Potential Salt Adaptation Strategies in Anammox Bacteria.

    Science.gov (United States)

    Speth, Daan R; Lagkouvardos, Ilias; Wang, Yong; Qian, Pei-Yuan; Dutilh, Bas E; Jetten, Mike S M

    2017-07-01

    Several recent studies have indicated that members of the phylum Planctomycetes are abundantly present at the brine-seawater interface (BSI) above multiple brine pools in the Red Sea. Planctomycetes include bacteria capable of anaerobic ammonium oxidation (anammox). Here, we investigated the possibility of anammox at BSI sites using metagenomic shotgun sequencing of DNA obtained from the BSI above the Discovery Deep brine pool. Analysis of sequencing reads matching the 16S rRNA and hzsA genes confirmed presence of anammox bacteria of the genus Scalindua. Phylogenetic analysis of the 16S rRNA gene indicated that this Scalindua sp. belongs to a distinct group, separate from the anammox bacteria in the seawater column, that contains mostly sequences retrieved from high-salt environments. Using coverage- and composition-based binning, we extracted and assembled the draft genome of the dominant anammox bacterium. Comparative genomic analysis indicated that this Scalindua species uses compatible solutes for osmoadaptation, in contrast to other marine anammox bacteria that likely use a salt-in strategy. We propose the name Candidatus Scalindua rubra for this novel species, alluding to its discovery in the Red Sea.

  16. Nitrogen fixation and growth response of Alnus Rubra following fertiliztion with urea or biosolids Fixação de nitrogênio e crescimento de Alnus Rubra fertilização com uréia ou biosólidos

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    Linda S. Gaulke

    2006-08-01

    Full Text Available Nitrogen fertilization of forests using biosolids offers a potentially environmentally friendly means to accelerate tree growth. This field study was designed to analyze the effects of nitrogen fertilization on the symbiotic, nitrogen (N-fixing relationship between Alnus rubra Bong. (red alder and Frankia. Anaerobically digested, class B biosolids and synthetic urea (46% N were applied at rates of 140, 280 and 560 kg ha-1 available N to a well-drained, sandy, glacial outwash soil in the Indianola series (mixed, mesic Dystric Xeropsamments. Plots were planted with A. rubra seedlings. At the end of each of two growing seasons trees were harvested and analyzed for the rate of N fixation (as acetylene reduction activity, biomass and foliar N. At year 1, there was no N fixation for trees grown with urea amendments, but control (17 µmol C2H4 g-1 hr-1 and biosolids (26-45 µmol C2H4 g-1 hr-1 trees were fixing N. At the end of year 2, all trees in all treatments were fixing N (7 µmol C2H4 g-1 hr-1, 4-16 µmol C2H4 g-1 hr-1, and 20-29 µmol C2H4 g-1 hr-1 for control, urea and biosolids respectively. Trees grown with biosolids amendments were larger overall (year 1 shoot biomass 10 g, 5 g, and 23 g for control, urea, and biosolids respectively, year 2 shoot biomass 50 g, 51 g, and 190 g for control, urea, and biosolids respectively with higher concentrations of foliar N for both years of the study (year 1 foliar N 26 g kg-1, 27 g kg-1, and 40 g kg-1 for control, urea, and biosolids respectively, year 2 foliar N 17 g kg-1, 19 g kg-1, and 23 g kg-1 for control, urea, and biosolids respectively. Trees grown with urea amendments appeared to use the urea N over Frankia supplied N, whereas the biosolids trees appeared to be able to use both N in biosolids and N from Frankia. The results from this study indicated that the greater growth of A. rubra may have been responsible for the observed higher N demand. Biosolids may have supplied other nutrients to the

  17. Evaluation of the grass mixture (Faestuca Rubra, Cynodon Dactylon, Lolium Multiflorum and Pennisetum sp.) as Sb phyto-stabilizer in tailings and Sb-rich soils.

    Science.gov (United States)

    Aurora Armienta, M.; Beltrán-Villavicencio, Margarita; Ruiz-Villalobos, Carlos E.; Labastida, Israel; Ceniceros, Nora; Cruz, Olivia; Aguayo, Alejandra

    2017-04-01

    Green house experiments were carried out to evaluate the growth and Sb assimilation of a grass assemblage: Faestuca Rubra, Cynodon Dactylon, Lolium Multiflorum and Pennisetum sp, in tailings and Sb-rich soils. Tailings and soil samples were obtained at the Mexican historical mining zone of Zimapán, Central México. More than 6 tailings impoundments are located at the town outskirts and constitute a contamination source from windblown and waterborne deposit on soils, besides acid mine drainage. Four substrates were used in the experiments: 100% tailings, 20% tailings + 80% soil, 50% tailings + 50% soil , and a soil sample far from tailings as a background. Concentrations of Sb ranged from 310 mg/kg to 413 mg/kg in tailings. A pH of 7.43, 1.27% organic matter, and high concentrations of N, K and P indicated adequate conditions for plant growth. The grass assemblage was raised during 21 days as indicated by OECD (Organisation for Economic Co-operation and Development) Guideline 208 Terrestrial Plant Test: Seedling Emergence and Seedling Growth Test. The highest Sb concentrations were measured in plants grown on tailings with 139 mg/kg in the aerial part and 883 mg/kg in roots. Concentrations of Sb decreased as the proportion of tailings diminished with 22.1 mg/kg in the aerial part and 10 mg/kg in roots corresponding to the plants grown in the 20 % tailings + 80% soil . Bioaccumulation (BAC) and bioconcentration factors (BF) of plants grown on tailings (BAC= 0.42, BCF=3.93) indicated their suitability as a phyto-stabilization option. The grass mixture may be thus applied to control windblown particulate tailings taking advantage to their tolerance to high Sb levels.

  18. The effect of heat waves, elevated [CO2 ] and low soil water availability on northern red oak (Quercus rubra L.) seedlings.

    Science.gov (United States)

    Bauweraerts, Ingvar; Wertin, Timothy M; Ameye, Maarten; McGuire, Mary Anne; Teskey, Robert O; Steppe, Kathy

    2013-02-01

    The frequency and intensity of heat waves are predicted to increase. This study investigates whether heat waves would have the same impact as a constant increase in temperature with the same heat sum, and whether there would be any interactive effects of elevated [CO2 ] and soil moisture content. We grew Quercus rubra seedlings in treatment chambers maintained at either ambient or elevated [CO2 ] (380 or 700 μmol CO2 mol(-1) ) with temperature treatments of ambient, ambient +3 °C, moderate heat wave (+6 °C every other week) or severe heat wave (+12 °C every fourth week) temperatures. Averaged over a 4-week period, and the entire growing season, the three elevated temperature treatments had the same average temperature and heat sum. Half the seedlings were watered to a soil water content near field capacity, half to about 50% of this value. Foliar gas exchange measurements were performed morning and afternoon (9:00 and 15:00 hours) before, during and after an applied heat wave in August 2010. Biomass accumulation was measured after five heat wave cycles. Under ambient [CO2 ] and well-watered conditions, biomass accumulation was highest in the +3 °C treatment, intermediate in the +6 °C heat wave and lowest in the +12 °C heat wave treatment. This response was mitigated by elevated [CO2 ]. Low soil moisture significantly decreased net photosynthesis (Anet ) and biomass in all [CO2 ] and temperature treatments. The +12 °C heat wave reduced afternoon Anet by 23% in ambient [CO2 ]. Although this reduction was relatively greater under elevated [CO2 ], Anet values during this heat wave were still 34% higher than under ambient [CO2 ]. We concluded that heat waves affected biomass growth differently than the same amount of heat applied uniformly over the growing season, and that the plant response to heat waves also depends on [CO2 ] and soil moisture conditions. © 2012 Blackwell Publishing Ltd.

  19. Pitiriasis liquenoide: estudio retrospectivo clínico epidemiológico de 49 pacientes pediátricos Pityriasis lichenoides: a retrospective clinical and epidemiological study of 49 pediatric patients

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    GP Sciancalepore

    Full Text Available La pitiriasis liquenoide (PL, entidad pápulo-escamosa, afecta principalmente a niños. Presenta una forma aguda, "pitiriasis liquenoide y varioliforme aguda" (PLEVA y otra crónica, la pitiriasis liquenoide crónica (PLC. Objetivo: describir las características de pacientes con diagnóstico clínico e histopatológico de PL. Comparar nuestros resultados con los hallados en la bibliografía. Materiales y Métodos: historias clínicas e informes anátomo-patológicos de 49 pacientes que consultaron entre marzo de 2000 a marzo de 2011. Se analizaron los datos obtenidos mediante el programa SPSS 11.5. Resultados: de 49 pacientes con PL, 17 presentaron PLEVA y 32 PLC. El promedio de edad de inicio de PLEVA fue de 6 años y de 10 años para PLC. Predominó el sexo masculino en PLEVA. Las formas generalizadas parecieran ser las predominantes. Las lesiones más frecuentemente halladas fueron: pápulas y pápulas eritematosas en PLEVA, escamas en PLC y las máculas hipocrómicas como discromía residual. 14 de 49 pacientes mostraron asociaciones mórbidas. Conclusiones: la PL puede ser dividida en aguda y crónica, a pesar de existir ambas clases de lesiones en un mismo paciente. PLEVA se presentó a edades más tempranas, predominando en varones. De los pacientes que presentaron co-morbilidades, la mayoría comprometía la inmunidad.Background: the pityriasis lichenoides (PL, a papulosquamous disease, affects mostly children. Present an acute form, pytiriasis lichenoides et varioliformis acute (PLEVA and other chronic, chronic lichenoid pytiriasis (PLC. Objetive: to describe the caracheristics of patients with clinic and histopathological diagnosis of PL. Compare our results with those found in the literature. Materials and Methods: clinical records and pathology reports of 49 patients who consulted between March 2000 and March 2011. Data were analyzed using SPSS 11.5. Results: of 49 patients with PL, 17 presented PLEVA and 32 PLC. The average age of

  20. Nitrogen fixation and growth response of Alnus rubra amended with low and high metal content biosolids Crescimento e fixação de nitrogênio por Alnus rubra cultivado sob fertilização com biosólidos com altos e baixos teores de metais

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    Linda S. Gaulke

    2006-08-01

    Full Text Available Forest application of biosolids offers a potential environmentally friendly alternative to landfilling. This two-year investigation was designed to analyze the effects of elevated soil metal concentration resulting from the land application of biosolids on the symbiotic, nitrogen (N fixing relationship between Alnus rubra Bong. (red alder and Frankia. High metal biosolids and a modern-day composted biosolid applied at high loading rates of 250, 500, and 1000 Mg ha-1, were used to represent a worst-case scenario for metal contamination. The high metal biosolids were obtained before the current regulations were formulated and had been lagooned prior to use in this study. Total cadmium (Cd, lead (Pb and zinc (Zn in the high metal biosolids were 45, 958, and 2623 mg kg-1 respectively. These metal concentrations are above current regulatory limits in the US. The compost was made using biosolids that are currently produced and had Cd, Pb and Zn of 0.8, 20 and 160 mg kg-1 respectively. Trees were harvested and analyzed for rate of N fixation (as measured by acetylene reduction activity, biomass, and foliar metals. Soils were analyzed for available N, total carbon and N, pH and total Cd, Pb and Zn. Rates of N fixation were not affected by soil amendment. In year 2, shoot biomass of trees grown in both the compost and high metal amendments were higher than the control. Shoot biomass increased with increasing amount of compost amendments, but decreased with increasing amount of high metal amendments. There was no relationship between soil metal concentration and plant biomass. Foliar Cd and Pb were below detection for all trees and foliar Zn increased with increasing amount of both compost and high metal amendment, with concentrations of 249 mg kg-1 for trees grown in the compost amendment and 279 mg kg-1 for the high metal amendment. The results from this study indicate that the growth of A. rubra benefited from both types of biosolids used in the study

  1. Recobrimentos e períodos de armazenamento na conservação pós-colheita de estacas de cordiline (Cordyline rubra Hügel

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    Nelson Mamoru Sakamoto

    2011-10-01

    Full Text Available O Brasil possui grande potencial exportador de flores e plantas ornamentais, e o emprego de técnicas simples de armazenamento poderia viabilizar o transporte por modais que não o aéreo, reduzindo custos, podendo prolongar a vida útil dos produtos. Este trabalho compara cinco tipos de recobrimento em estacas de Cordyline rubra Hügel (película amilácea, pasta de parafina no ápice, pasta de parafina no ápice e vermiculita umedecida na base, saco plástico ou sem recobrimento e diferentes períodos de armazenamento (30, 60, 90 ou 120 dias, a fim de reduzir sua atividade biológica, perda de água e ataque de patógenos. Foi escolhida esta espécie por ser muito apreciada como planta ornamental pela beleza de suas folhas e exportada na forma de estacas de diferentes tamanhos. O experimento foi conduzido nas dependências do Departamento de Produção Vegetal da Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, no município de Piracicaba, Estado de São Paulo. Foram utilizadas 300 estacas com 30 cm de comprimento por 3 cm de diâmetro. Cada tratamento foi composto por 15 estacas pré-tratadas (tipos de recobrimento, submetidas a períodos de armazenamento (30, 60, 90 ou 120 dias sob refrigeração e temperatura ambiente, totalizando 60 estacas. Após o armazenamento, foram cortados 3 cm da base de cada estaca, em seguida, tratadas com ácido indolbutírico a 10.000 mg/L e colocadas em leito de enraizamento de areia grossa. Após 90 dias, foram avaliados os seguintes parâmetros: porcentagem de desenvolvimento, número e massa fresca e seca de brotos e raízes. Observou-se que os menores períodos de armazenamento proporcionam melhor desenvolvimento das estacas. Os tipos de recobrimento que melhor conservaram as estacas, em ordem decrescente de resultados, foram o saco plástico, parafina no ápice e vermiculita umedecida na base, parafina no ápice, película de amido e sem recobrimento. Conclui-se que o m

  2. Treatment of pityriasis versicolor with topical application of essential oil of Cymbopogon citratus (DC Stapf - therapeutic pilot study Tratamento de pitiríase versicolor com aplicação tópica do óleo essencial de Cymbopogon citratus (DC Stapf - estudo terapêutico piloto

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    Egberto Santos Carmo

    2013-06-01

    Full Text Available BACKGROUND: Pityriasis versicolor is a fungal infection caused by Malassezia spp. that has frequent relapses. OBJECTIVES: The main objective of this research was to perform phase I and II clinical studies, using formulations containing essential oil of Cymbopogon citratus in patients with pityriasis versicolor. METHODS: Phase I study included twenty volunteers to ascertain the safety of the formulations. In phase II, 47 volunteers randomly received essential oil formulations at 1.25 μL/mL concentration, for forty days. The shampoo should be applied three times a week and the cream twice a day. A control group in phase II, consisting of 29 volunteers, received the same formulations but with 2% ketoconazole as the active ingredient. RESULTS: No significant adverse events were observed in volunteers during Phase I. In Phase II, 30 (63.83% volunteers using essential oil and 18 (62.07% using ketoconazole remained until the end of the study. We observed a predominance of lesions in disseminated form, with M. sympodialis detected as the predominant agent identified in cultures. After 40 days of treatment, the rate of mycological cure was 60% (p FUNDAMENTOS: Pitiríase versicolor é uma micose causada pela Malassezia spp., e que apresenta frequentes recidivas. OBJETIVOS: Este trabalho objetivou realizar estudos clínicos de fase I e II, para essa patologia, com óleo essencial de Cymbopogon citratus. MÉTODOS: Na fase I, participaram vinte voluntários para averiguar a segurança das formulações. Na fase II, 47 voluntários receberam as formulações do óleo essencial a 1,25 μL/mL, as quais deveriam ser utilizadas por quarenta dias, sendo o xampu três vezes por semana e o creme duas vezes ao dia. Um grupo controle na fase II, constituído por 29 voluntários recebeu as mesmas formulações, com cetoconazol a 2%. RESULTADOS: Verificada a segurança das formulações com a finalização da fase I, onde nenhuma reação adversa significativa foi

  3. Aspectos clínicos de pacientes com pitiríase versicolor atendidos em um centro de referência em dermatologia tropical na cidade de Manaus (AM, Brasil Clinical aspects of patients with pityriasis versicolor seen at a referral center for tropical dermatology in Manaus, Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Patrícia Motta de Morais

    2010-12-01

    Full Text Available FUNDAMENTOS: A pitiríase versicolor (tinha versicolor é uma micose superficial crônica, causada por leveduras do gênero Malassezia spp. comensais das camadas queratinizadas da pele e que, sob determinadas condições ainda não esclarecidas, se torna patogênica, determinando as manifestações clínicas da doença. É uma dermatose recidivante e, mesmo após tratamento, pode deixar hipopigmentação persistente, causando problemas sociais aos indivíduos acometidos. OBJETIVO: Descrever as características clínicas e epidemiológicas de pacientes com diagnóstico de tinha versicolor atendidos em uma unidade de referência em Dermatologia (Fundação Alfredo da Matta. MÉTODOS: Estudo de série de casos em que foram detalhadas as manifestações cutâneas e as características epidemiológicas de pacientes atendidos na Fundação Alfredo da Matta com diagnóstico de tinha versicolor. RESULTADOS: Cento e dezesseis pacientes foram incluídos no estudo no período de janeiro a agosto de 2008. A maioria dos indivíduos é do sexo masculino, de cor parda, da faixa etária jovem e formada por estudantes, que apresentavam fatores predisponentes ao surgimento das manchas. Também a maioria apresentava lesões extensas e história passada da doença. CONCLUSÃO: O estudo mostrou alta proporção de indivíduos com quadros extensos e de longa duração da doença.BACKGROUND: Pityriasis versicolor (tinea versicolor is a chronic superficial mycosis caused by yeasts of the Malassezia spp. genus commensal of the keratinized layers of the skin. Under conditions not yet understood, it becomes pathogenic determining the clinical manifestations of the disease. It is a recurrent skin condition and persistent hypopigmentation may remain after treatment, causing social problems to those affected. OBJECTIVE: To describe the clinical and epidemiological features of patients diagnosed with tinea versicolor treated at a referral center for dermatology (Alfredo da

  4. Pityriasis versicolor: clinical-epidemiological characterization of patients in the urban area of Buerarema-BA , Brazil Pitiríase versicolor: caracterização clínico-epidemiológica em pacientes da área urbana de Buerarema-BA, Brasil

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    Juliano Oliveira Santana

    2013-04-01

    Full Text Available BACKGROUND: Pityriasis versicolor (PV is a cutaneous pigmentation disorder caused by a lipophilic yeast of the genus Malassezia sp. It is a superficial mycosis characterized by well-defined, slightly scaly skin lesions of variable color. In Brazil, the number of reported cases is small, and there are few epidemiological studies. OBJECTIVES: to assess incidence, characteristics of the lesions, effectiveness of the Zileri's Sign procedure, and the epidemiological profile of PV in the urban area of Buerarema - Bahia. METHODS: Biological samples were collected on pre-established days at Basic Health Care Units from July to September 2010. Sample collection was followed by laboratory diagnosis using Porto's Method. RESULTS: Of the 158 patients with suspected PV participating in the study, 105 (66.5% were positive; 72 (68.6% were female and 33 (31.4% were male. Sex and location of lesions showed statistically significant differences (p FUNDAMENTOS: A pitiríase versicolor é um distúrbio de pigmentação cutânea causada pela levedura lipofílica do gênero Malassezia sp. É uma micose superficial caracterizada por produzir lesões delimitadas, com descamação fina e de cor variável. No Brasil, o relato do número de casos e de estudos é restrito. OBJETIVOS: Analisar a incidência, as características das lesões, a eficácia do Sinal de Zileri e o perfil epidemiológico da pitiríase versicolor na área urbana do município de Buerarema-BA. MÉTODOS: Foram coletadas amostras biológicas no período de julho a setembro de 2010, em dias pré-establecidos, nas Unidades Básicas de Saúde. O Método de Porto foi utilizado como diagnóstico laboratorial. RESULTADOS: Dos 158 pacientes cadastrados com suspeita de pitiríase versicolor, 105 (66,5% mostraram-se positivos, sendo 72 (68,6% do sexo feminino e 33 (31,4% do sexo oposto. Ocorreu diferença estatisticamente significante entre sexo e localização das lesões (p<0,05. A região com maior

  5. Pityriasis rosea. Appearance and distribution of macules aid diagnosis.

    Science.gov (United States)

    Karnath, Bernard; Hussain, Nasir; Bevin, Mary

    2003-05-01

    A 40-year-old man presented with a 1-week history of a diffuse pruritic rash. The patient denied having had fever, chills, or a recent respiratory infection. He could not recall having an initial patch. Physical examination revealed numerous small, scaly patches on his trunk (figure 1). The rash spared the palms of his hands and soles of his feet as well as the distal extremities.

  6. Diseases associated with hidranitis suppurativa: part 2 of a series on hidradenitis.

    Science.gov (United States)

    Scheinfeld, Noah

    2013-06-15

    diseases is likely underreported. Pyoderma vegetans has been noted in 2 cases of HS and 4 cases of Inflammatory Bowel Disease (IBD) and is likely a clue to the linkage of the pathology of IBD and HS. Pityriasis rubra pilaris, in particular Type VI related to HIV, has a relationship more commonly with acne conglobata, but with HS also. Single case reports of diseases associated with HS include systemic lupus erythematosus, acromegaly, Down syndrome, Bazex-Dupre´-Christol, and prurtis ani, but these might be coincidences. Pyogenic Arthritis, Pyoderma gangrenosum, and Acne (PAPA Syndrome) and Pyoderma gangrenosum, Acne, and Suppurative Hidradenitis (PASH Syndrome) are pyodermic-arthritic syndromes that are associated with HS. Erythema nodosum and granulomatous lobular mastitis have been reported with HS but the significance of these reports is uncertain. Because of scarring, HS can result in lymphedema including scrotal elephantiasis and verrucous lymphedema. HS is sometimes accompanied by obesity, hypertension, and anemia and can be considered a disease in the spectrum of metabolic syndrome, a skin disease with systemic consequences. HS, like other types of chronic inflammation when long standing in the perianal and perineal areas, can result in squamous cell cancer. A variety of drugs can induce HS. These include lithium, sirolimus, cyclosporine, vemurafenib, and oral contraceptives. Inverse psoriasis or psoriasis vulgaris as a side effect of infliximab therapy may be associated with HS. These associations aside, most cases of HS occur in isolation without coincident morbidity.

  7. Характеристика водного обмена листьев Quercus robur L. и Quercus rubra L. в чистых и смешанных группах

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    Анастасия КРИВОРУЧКО

    2017-06-01

    Full Text Available The peculiarities of water metabolism of the leaves of English oak (Quercus robur L. and red oak (Quercus rubra L. in pure and mixed groups were examined. Twelve-year-old forest plantations of both species on an area of 1.6 ha were the object of study. It was found that in both pure and mixed groups the leaves of Q. robur are characterized by more intense transpiration than Q. rubra. The joint growth of these species, on the whole, leads to a more active evaporation of water by Q. robur leaves than in the single-species groups. The leaves of Q. rubra in two-species groups lose less or the same amount of water in the transpiration process as in the single-species groups. The leaves of Q. rubra having a higher water storage capacity in both variants are characterized by a more uniform and stable daily course of transpiration. As a result of the joint growth, the water deficit in the leaves of Q. rubra increased in July and September compared to the pure groups. The differences in the leaves of Q. robur between the two studied sites are unreliable. The obtained data indicate the absence of an explicit negative mutual influence between the species on the water metabolism indices of their leaves. Реферат. Изучены особенности водного обмена листьев дуба обыкновенного (Quercus robur L. и дуба красного (Quercus rubra L. в чистых и смешанных группах. Объектами исследования были 12-летние лесные культуры обоих видов, площадью 1,6 га. Установлено, что как в чистых, так и в смешанных группах листья Q. robur характеризуются более интенсивной транспирацией в сравнении с Q. rubra. Совместный рост этих видов приводит, в целом, к более

  8. Sebaceous gland, hair shaft, and epidermal barrier abnormalities in keratosis pilaris with and without filaggrin deficiency

    DEFF Research Database (Denmark)

    Gruber, Robert; Sugarman, Jeffrey L; Crumrine, Debra

    2015-01-01

    were hyperkeratosis, hypergranulosis, mild T helper cell type 1-dominant lymphocytic inflammation, plugging of follicular orifices, striking absence of sebaceous glands, and hair shaft abnormalities in KP lesions but not in unaffected skin sites. Changes in barrier function and abnormal paracellular...... and tight junctions appeared normal, immunohistochemistry for claudin 1 showed no reduction in protein amounts, and molecular analysis of claudin 1 was unremarkable. Our findings suggest that absence of sebaceous glands is an early step in KP pathogenesis, resulting in downstream hair shaft and epithelial...

  9. Akvareli Aleksandra Pilara / Nelli Kuznetsova

    Index Scriptorium Estoniae

    Kuznetsova, Nelli

    2000-01-01

    Aleksander Pilari akvarellinäitusest Tallinna Vene saatkonna galeriis. Organiseeris poeg Boris Pilar Eesti Kunstimuuseumi ja erakogudest. Näituse avamisel Mai Levin A. Pilari loomingust. A. Pilari kuulsast suguvõsast.

  10. A Protease Isolated from the Latex of Plumeria rubra Linn ...

    African Journals Online (AJOL)

    Erah

    Gauhati Medical College and Hospital, Guwahati, Assam-781032, 3Department of Pharmaceutical Technology,. Jadavpur ... some cases, the cells lost are replaced by the proliferative ... was collected from the stem of the plant. .... standard and test drugs compared to control .... of regeneration of dermal and epidermal.

  11. Anticaries Activity of Azolla pinnata and Azolla rubra | Prashith ...

    African Journals Online (AJOL)

    http://dx.doi.org/10.4314/star.v3i3.21 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's Partners · Terms and Conditions of Use · Contact AJOL · News. OTHER RESOURCES... for Researchers · for Journals · for Authors · for Policy Makers ...

  12. Sexing immature Mauritius Fodies Foudia rubra using biometrics ...

    African Journals Online (AJOL)

    There is currently no reliable, affordable method of sexing Mauritius Fodies in their first non-breeding season. Ringed immature fodies from a released population on an offshore island were caught in April and May 2005 and sexed in later breeding seasons. Males had longer wing lengths and tarsi than females, with no ...

  13. A Protease Isolated from the Latex of Plumeria rubra Linn ...

    African Journals Online (AJOL)

    Erah

    purified protease was determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-. PAGE). ... by ammonium sulphate (40 - 60% w/v). The solution was kept .... chloride (88.1 %), silver nitrate (92.9 %), mercuric chloride ...

  14. ( Cola Nitida Rubra ) on Reproductive Hormones in Rats

    African Journals Online (AJOL)

    Our previous study suggests that aqueous extract of kola nut had effect on reproductive hormones in male rats. This study evaluates the effects of kola nut extract on plasma level of testosterone and luteinizing hormones in male rats. 30 adult male rats were used. These were divided into three groups: group A served as ...

  15. Investigations of the cerebral blood flow by means of nuclear medicine in polycythemia vera rubra. Untersuchungen des zerebralen Blutflusses bei Polyzythaemia vera rubra mit nuklearmedizinischen Methoden

    Energy Technology Data Exchange (ETDEWEB)

    Franke, W.G. (Medizinische Akademie Dresden, Klinik und Poliklinik fuer Nuklearmedizin (Germany)); Unger, L. (Medizinische Akademie Dresden, Klinik und Poliklinik fuer Psychiatrie und Neurologie (Germany)); Mueller, J. (Medizinische Akademie Dresden, Klinik und Poliklinik fuer Psychiatrie und Neurologie (Germany))

    1993-04-01

    P.v. represents a ''clinical model'' of diagnostic radionuclide application to evaluate the total and regional perfusion of brain. 107 polycythemians treated by or provided for radiophosphorus were studied by neurologic methods as EEG e.g. and with XCT if necessary. These studies were accomplished repeatedly in 62% of the surveyed patients. We found disturbed perfusion in brain: 32, diminuation of blood flow in vertebral-basilar region: 8, polyneuropathies: 27, psychic abnormalities: 60. Therapeutic effects became ascertained in 34% of hemipareses. The majority of polycythemic patients let recognize a regression of subjective complaints. The diagnostic informations obtained by radionuclide methods were compared to clinical and neurologic results as mentioned above. A good correlation could observed from radionuclide angiography, [sup 133]Xe-studies of total and regional cerebral perfusion and HMPAO-SPECT to neurologic and radiological findings. 66% of studied patients showed abnormal radioactivity distribution at static scintigrams. Disturbances of cerebral perfusion were seen in 20 from 26 patients if radionuclide angiography was used. Especially the inflow to cerebral vessels was found retarded by this method. Even in 3 neurologically inconspicuous persons the cerebral perfusion was restricted. Only 5 patients without signs of decreased flow could be seen. In 9 of 10 cases studied using [sup 133]Xenon referred to diminuation of cerebral perfusion. Both dynamic methods showed changes in perfusion depending from time course. Numerous localized defects of vascularization were detected by SPECT in some corresponding with neurologic symptoms in other patients differing from these ones. (orig./MG)

  16. Germination of red alder (Alnus rubra) seed from several locations in its natural range

    Energy Technology Data Exchange (ETDEWEB)

    Elliott, D.M.; Taylor, I.E.P.

    1981-01-01

    Tests were carried out on stratified, pre-soaked or untreated seeds. Germination of all provenances and treatments was more than 90%, except for one provenance showing physiological dormancy in which germination was low, but increased significantly with stratification and presoaking; dormancy could be broken completely by chilling at 0 degrees C for 5 days. Significant interactions were found between provenances and treatments for both germination % and seed vigour (as measured by germination value).

  17. Effects of acorn size and mass on seedling quality of northern red oak (Quercus rubra)

    Science.gov (United States)

    Stacy L. Clark; Scott E. Schlarbaum

    2018-01-01

    Oaks are not sustainable in many upland temperate forests because of poor recruitment resulting from natural regeneration. Artificial regeneration is an alternative to natural regeneration, but is difficult, in part, due to large variation in seedling quality.  In this study, we examined the effects of acorn size and mass on nursery...

  18. Proanthocyanidin Synthesis in Chinese Bayberry (Myrica rubra Sieb. et Zucc. Fruits

    Directory of Open Access Journals (Sweden)

    Liyu Shi

    2018-02-01

    Full Text Available Proanthocyanidins (PAs are distributed widely in Chinese bayberry fruit and have been associated with human health benefits, but molecular and biochemical characterization of PA biosynthesis remains unclear. Here, two genes encoding key PA biosynthetic enzymes, anthocyanidin reductase (ANR and leucoanthocyanidin reductase (LAR were isolated in bayberry fruit. MrANR was highly expressed at the early stage of fruit development when soluble PAs accumulated at high levels. Meanwhile, the transcript abundance of both MrANR and MrLAR observed at the late stage was paralleled with the high amounts of insoluble PAs. LC-MS/MS showed that PAs in developing Chinese bayberry fruits were comprised predominantly of epigallocatechin-3-O-gallate terminal subunits, while the extension subunits were a mixture of epigallocatechin-3-O-gallate, epigallocatechin and catechin. Recombinant MrANR protein converted cyanidin to a mixture of epicatechin and catechin, and delphinidin to a mixture of epigallocatechin and gallocatechin in vitro. Recombinant MrLAR was active with leucocyanidin as substrate to produce catechin. Ectopic expression of MrANR in tobacco reduced anthocyanin levels but increased PA accumulation. The catechin and epicatechin contents in transgenic flowers overexpressed MrANR were significantly higher than those of wild-type. However, overexpression of MrLAR in tobacco led to an increase in catechin levels but had no impact on PA contents. Quantitative real time PCR revealed that the loss of anthocyanin in transgenic flowers overexpressed MrANR or MrLAR is probably attributed to decreased expression of tobacco chalcone isomerase (CHI gene. Our results not only reveal in vivo and in vitro functions for ANR and LAR but also provide a resource for understanding the mechanism of PA biosynthesis in Chinese bayberry fruit.

  19. Predicting internal red oak (Quercus rubra) log defect features using surface defect defect measurements

    Science.gov (United States)

    R. Edward. Thomas

    2013-01-01

    Determining the defects located within a log is crucial to understanding the tree/log resource for efficient processing. However, existing means of doing this non-destructively requires the use of expensive x-ray/CT (computerized tomography), MRI (magnetic resonance imaging), or microwave technology. These methods do not lend themselves to fast, efficient, and cost-...

  20. Overstory density affects field performance of underplanted red oak (Quercus rubra L.) in Ontario

    Science.gov (United States)

    Daniel C. Dey; William C. Parker

    1997-01-01

    Red oak seedlings were underplanted in a closed-canopy mature northern hardwood stand and an adjacent shelterwood in central Ontario. Overstory density effects on seedling survival and growth were assessed 2 yr after planting. After 2 yr, seedling survival was 90% in the uncut stand and over 99% in the shelterwood. Seedlings in the uncut stand experienced negligible or...

  1. The Cumulative Effect of Manure on a Festuca Rubra Grasslands for 15 Years

    Directory of Open Access Journals (Sweden)

    Ioana VAIDA

    2017-11-01

    In this paper it was shown on which species the productivity of the grassland increased from the control variant to the fertilized variant with the maximum dose. Regarding the analysis of the phytodiversity, this tells us if the number of species is reduced in all the treatments, 10 t/ha of manure leads to an increase in phytocoenosis equivalence and implicitly to the Shannon index.

  2. Investigations of the cerebral blood flow by means of nuclear medicine in polycythemia vera rubra

    International Nuclear Information System (INIS)

    Franke, W.G.; Unger, L.; Mueller, J.

    1993-01-01

    P.v. represents a ''clinical model'' of diagnostic radionuclide application to evaluate the total and regional perfusion of brain. 107 polycythemians treated by or provided for radiophosphorus were studied by neurologic methods as EEG e.g. and with XCT if necessary. These studies were accomplished repeatedly in 62% of the surveyed patients. We found disturbed perfusion in brain: 32, diminuation of blood flow in vertebral-basilar region: 8, polyneuropathies: 27, psychic abnormalities: 60. Therapeutic effects became ascertained in 34% of hemipareses. The majority of polycythemic patients let recognize a regression of subjective complaints. The diagnostic informations obtained by radionuclide methods were compared to clinical and neurologic results as mentioned above. A good correlation could observed from radionuclide angiography, 133 Xe-studies of total and regional cerebral perfusion and HMPAO-SPECT to neurologic and radiological findings. 66% of studied patients showed abnormal radioactivity distribution at static scintigrams. Disturbances of cerebral perfusion were seen in 20 from 26 patients if radionuclide angiography was used. Especially the inflow to cerebral vessels was found retarded by this method. Even in 3 neurologically inconspicuous persons the cerebral perfusion was restricted. Only 5 patients without signs of decreased flow could be seen. In 9 of 10 cases studied using 133 Xenon referred to diminuation of cerebral perfusion. Both dynamic methods showed changes in perfusion depending from time course. Numerous localized defects of vascularization were detected by SPECT in some corresponding with neurologic symptoms in other patients differing from these ones. (orig./MG) [de

  3. Early wide spacing in red alder (Alnus rubra Bong.): effects on stem form and stem growth.

    Science.gov (United States)

    Bernard T. Bormann

    1985-01-01

    A thinning trial was established in 1962 in a 7-year-old red alder stand in northwestern Washington. Spacings were 8 x 8 ft (dense), 12 x 12 it (intermediate), and 16 x 16 ft (open). The effect of early thinning on growth and stem form was measured in 1982, 20 years after spacing treatment. There was negligible tree lean and sweep in open and intermediate stands except...

  4. Effects of Aqueous Extract of Kola Nut (Cola Nitida Rubra) on ...

    African Journals Online (AJOL)

    Chigo Okwuosa

    This study evaluates the effects of kola nut extract on plasma level of ... combination with other drugs (Rall, 1980). Caffeine and some of its ... combination of coffee drinking with smoking ... effects on reproductive functions using male rats.

  5. Immunological changes in response to herpesvirus infection in abalone Haliotis laevigata and Haliotis rubra hybrids.

    Science.gov (United States)

    Dang, Vinh T; Benkendorff, Kirsten; Corbeil, Serge; Williams, Lynette M; Hoad, John; Crane, Mark St J; Speck, Peter

    2013-02-01

    Australian abalone production has been affected by outbreaks of abalone viral ganglioneuritis (AVG) caused by a herpesvirus (AbHV). In this study, we undertook experimental transmission trials by immersion to study the abalone immune response to infection with AbHV. Representative cellular and humoural immune parameters of abalone, including total haemocyte count (THC), superoxide anion (SO) and antiviral activity against herpes simplex virus type 1 (HSV-1), were examined in apparently healthy (sub-clinical) and moribund abalone after challenge. In the early infection, sub-clinical stage (days 1-3), THC was found to increase significantly in infected abalone. TaqMan qPCR confirmed 20.5% higher viral load in moribund abalone compared to apparently healthy abalone, indicating that the abundance of AbHV within abalone is linked to their clinical signs. At the clinical stage of infection, THC was significantly lower in moribund abalone, but increased in AbHV-exposed but apparently healthy abalone, in comparison to non-infected controls. SO was reduced in all abalone that were PCR-positive for AbHV. THC and SO level were found to be negatively correlated with the presence of AbHV in abalone, but no effect of AbVH exposure was observed on the haemolymph antiviral activity. These results suggest that abalone mount an initial cellular immune response to AbHV infection, but this response cannot be sustained under high viral loads, leading to mortality. Copyright © 2012 Elsevier Ltd. All rights reserved.

  6. The response of red ginger (Zinggiber officinalle var rubra) with various processing in broilers were infected by Eimeria tenella

    Science.gov (United States)

    Nasution, E. Z. J.; Tafsin, M.; Hanafi, N. D.

    2018-02-01

    Red ginger contains high antioxidants and have anti -inflamatory properties. Ginger also has the ability to treat kimiatif, antiemetic, antinausea, and antiparasitik. The aim of this experiment was identified the response of red ginger in broilers were infected by Eimeria tenella. This research used Completely Randomized Design (CRD) with 5 treatments and 4 replications. Eimeria tenella were infected by 10.000 oocysts / head and red ginger solution were aplicated with 1% concentration. The treatments consist of KP (positive control), KO (coccidiostat), K1 (red ginger powder), K2 (extracted red ginger by ethanol) and K3 (extracted red ginger by water) . The results showed that the treatment of red ginger was significant effect (PEimeria tenella. The comparison between extracted red ginger by ethanol is better than by water or in powder form to decreased. The utilization of red ginger showed the percentage of heterophile and eosinophile close to normal when compared with positive control. Assesment of caecum lesion score was not significant (P>0.05) different effect between all the treatments. It is concluded that the treatment by red ginger better than coccidiostat and positive control.

  7. Renal trematode infection due to Paratanaisia bragai in zoo housed Columbiformes and a red bird-of-paradise (Paradisaea rubra).

    Science.gov (United States)

    Unwin, Steve; Chantrey, Julian; Chatterton, James; Aldhoun, Jitka A; Littlewood, D Timothy J

    2013-12-01

    Trematode infections affect a diverse range of avian species and the organs that are parasitised are also very varied. The family Eucotylidae contains seven genera of renal flukes that parasitise various birds. In birds, mild to severe lesions have been reported for species of the genus Paratanaisia, which was originally described from columbiform and galliform specimens collected in South America and has been identified in a number of wild avian species. This paper investigates eight cases of renal trematode infection at Chester Zoo in the UK due to Paratanaisia bragai in five previously unreported species: red bird-of-paradise, Socorro dove, Mindanao bleeding heart dove, laughing dove and emerald dove. Pathological changes, which varied between species, are discussed. A known intermediate snail host Allopeas clavulinum was present in the enclosures but there was no direct evidence of trematode infection. The size of the snails, possible low prevalence and the difficulty of visualising sporocysts contributed to this. Thus the development and application of further molecular diagnostic markers that can be applied to snail tissues is warranted. Parasite identification was confirmed utilizing DNA amplification from formalin-fixed paraffin-embedded tissues using PCR and trematode specific primers. Sequencing full ssrDNA and D1-D3 lsrDNA confirmed the identity in all cases as P. bragai. However, the short 310 bp fragment used provides insufficient variation or sequence length for wider application. The epidemiology, pathology and consequences for the management of these endangered species are discussed. Preliminary work on developing an effective ante mortem diagnostic PCR test kit is also highlighted.

  8. Conservation of genetic diversity in slippery elm (Ulmus rubra) in Wisconsin despite the devastating impact of Dutch elm disease

    Science.gov (United States)

    Forest trees tend to be genetically diverse, a condition related to their longevity, outcrossing mating system and extensive gene flow that maintains high levels of genetic diversity within populations. Forest pest epidemics are responsible for many historic and contemporary population declines repo...

  9. Anti-Coagulant and Anti-Thrombotic Properties of Blacklip Abalone (Haliotis rubra): In Vitro and Animal Studies.

    Science.gov (United States)

    Suleria, Hafiz Ansar Rasul; Masci, Paul P; Zhao, Kong-Nan; Addepalli, Rama; Chen, Wei; Osborne, Simone A; Gobe, Glenda C

    2017-08-04

    Sulphated polysaccharides with anti-thrombotic and anti-coagulant activities have been found in various marine biota. In this study, a previously characterised anti-thrombotic and anti-coagulant extract from blacklip abalone was fractionated by anion exchange chromatography (AEC), pooled (on a sulphated polysaccharide basis) and administered to Wistar rats via oral gavage (N = 8) for assessment as an oral therapeutic. To ensure that the preparation had anti-coagulant activity prior to oral administration, it was assessed in rat blood by thromboelastography (TEG) significantly increasing reaction (R) time (or time until clot formation). Following in vitro confirmation of anti-coagulant activity, 40 mg of the preparation was orally administered to rats with blood samples collected at 2, 4, and 6 h post-gavage. Assessment of all blood samples by TEG showed some prolongation of R time from 355 to 380 s after 4 h. Dosing of the post-gavage blood samples with the abalone preparation to confirm anti-thrombotic activity in vitro revealed residual anti-coagulant activity, further suggesting that oral administration did increase anti-coagulant potential in the collected blood but that bioavailability was low. Assessment of tissues and haematological parameters showed no obvious harmful effects of the abalone preparation in animals. In summary, even though oral administration of fractionated and pooled blacklip abalone extract to rats delayed clotting after 4 h, bioavailability of the preparation appeared to be low and may be more appropriate for intravenous administration as an anti-thrombotic or anti-coagulant therapeutic.

  10. Australian abalone (Haliotis laevigata, H. rubra and H. conicopora) are susceptible to infection by multiple abalone herpesvirus genotypes.

    Science.gov (United States)

    Corbeil, Serge; Williams, Lynette M; McColl, Kenneth A; Crane, Mark St J

    2016-05-03

    From 2006 to 2012, acute mortalities occurred in farmed and wild abalone (Haliotis spp.) along the coast of Victoria, Australia. The disease (abalone viral ganglioneuritis; AVG) is associated with infection by an abalone herpesvirus (AbHV). The relative pathogenicity of 5 known variants of AbHV was evaluated on abalone stocks from different states in Australia. Results indicated that all virus variants (Vic1, Tas1, Tas2, Tas3 and Tas4) cause disease and mortality in all abalone stocks tested (greenlip, blacklip and brownlip). In order to avoid further AVG outbreaks in Australian wild abalone, strict regulations on the transfer of abalone stocks must be implemented.

  11. Semeinõi albom Jurija Piljara / Svetlana Ragrina

    Index Scriptorium Estoniae

    Ragrina, Svetlana

    2000-01-01

    Artiklis kirjanik Juri Pilar von Pilchaust on juttu ka samasse aadlisuguvõssa kuulunud kunstnik Aleksander Pilarist ja tema loomingust. A. Pilari poeg Boris kinkis isa akvarelli "Eesti" "Vesti" kunstikogule.

  12. "Sokrovishtsha mirovogo iskusstva v Tallinne" / Boris Pilar von Pilhau

    Index Scriptorium Estoniae

    Pilar von Pilhau, Boris

    2006-01-01

    Boris Pilari ja Jevgeni Rogovi kunstiprojektist "Maailma kunstiaarded Tallinnas", selle raames toimunud vene maalikunsti ja Pihkva koolkonna ikoonide näitusest "Pihkva muuseumi aarded" Tallinna Õpetajate majas ja Jaroslavli kunstimuuseumi kunstivarade näituse ettevalmistamisest

  13. Pollen gene flow, male reproductive success, and genetic correlations among offspring in a northern red oak (Quercus rubra L.) seed orchard

    Science.gov (United States)

    Lisa Alexander; Keith Woeste

    2017-01-01

    Northern red oak is a high-value hardwood used for lumber, furniture and veneer. Intensively managed northern red oak seed orchards are required to obtain genetic gain for trait improvement. Data from conifer seed orchards and natural and managed stands of hardwood trees have shed light on the distance over which pollen can move, and underscore the need for managerial...

  14. Pollen gene flow, male reproductive success, and genetic correlations among offspring in a northern red oak (Quercus rubra L.) seed orchard

    Science.gov (United States)

    Woeste, Keith

    2017-01-01

    Northern red oak is a high-value hardwood used for lumber, furniture and veneer. Intensively managed northern red oak seed orchards are required to obtain genetic gain for trait improvement. Data from conifer seed orchards and natural and managed stands of hardwood trees have shed light on the distance over which pollen can move, and underscore the need for managerial attention to seed orchard design, placement, and maintenance. We used eleven microsatellite markers to investigate pollen gene flow, female mate choice, and male reproductive success in a clonal seed orchard of northern red oak based on paternity analysis of seed orchard offspring in progeny tests. Nearly all (93%) offspring were sired by a male parent within the seed orchard. The mean number of male parents per year was 69.5, or 47.6% of all clones in the seed orchard. Female clones in the early phenology group had more offspring sired from extra-orchard pollen (13%) than clones in the intermediate (5%) and late (1%) phenology groups. Distance was the largest influence on pollination success, and pollination occurred most often by male trees in the same subline as the maternal tree. Males in the early phenology group sired more offspring overall in the progeny pool and more offspring per mother tree than males in the intermediate or late phenology groups. Average genetic correlations among all OP progeny ranged between 0.2557 and 0.3529 with a mean of 0.28±0.01. The importance of progeny test genotyping for northern red oak improvement likely is increasing with the demand for improved varieties. The current study demonstrated the feasibility of post hoc assembly of full-sib families for genetic analysis. PMID:28166543

  15. Biodegradation of PAHs in long-term contaminated soil cultivated with european white birch (betula pendula) and red mulberry (morus rubra) tree

    Czech Academy of Sciences Publication Activity Database

    Rezek, Jan; Wiesche in der, C.; Macková, M.; Zadražil, F.; Macek, Tomáš

    2009-01-01

    Roč. 11, č. 1 (2009), s. 66-81 ISSN 1522-6514 Grant - others:GA MŠk(CZ) 2B06156 Program:2B Institutional research plan: CEZ:AV0Z40550506 Keywords : phytoremediation * Lolium perenne * HPLC * plants Subject RIV: EI - Biotechnology ; Bionics Impact factor: 1.321, year: 2009

  16. Morphological indicators of stock quality and field performance of red oak (Quercus rubra L.) seedling underplanted in a central Ontario shelterwood

    Science.gov (United States)

    Daniel C. Dey; William C. Parker

    1997-01-01

    Initial stem diameter of bareroot red oak planting stock was a better morphological indicator of future height and diameter growth in a shelterwood underplanting than were initial shoot length and number of first-order lateral roots. Stem diameter near the root collar provides an integrated measure of the growth potential of red oak planting stock because of its strong...

  17. Draft Genome of Scalindua rubra, Obtained from the Interface Above the Discovery Deep Brine in the Red Sea, Sheds Light on Potential Salt Adaptation Strategies in Anammox Bacteria

    NARCIS (Netherlands)

    Speth, Daan R.; Lagkouvardos, Ilias; Wang, Yong; Qian, Pei Yuan; Dutilh, Bas E.|info:eu-repo/dai/nl/304546313; Jetten, Mike S M

    2017-01-01

    Several recent studies have indicated that members of the phylum Planctomycetes are abundantly present at the brine-seawater interface (BSI) above multiple brine pools in the Red Sea. Planctomycetes include bacteria capable of anaerobic ammonium oxidation (anammox). Here, we investigated the

  18. Draft Genome of Scalindua rubra, Obtained from the Interface Above the Discovery Deep Brine in the Red Sea, Sheds Light on Potential Salt Adaptation Strategies in Anammox Bacteria

    NARCIS (Netherlands)

    Speth, Daan R.; Lagkouvardos, Ilias; Wang, Yong; Qian, Pei Yuan; Dutilh, Bas E.; Jetten, M.S.M.

    2017-01-01

    Several recent studies have indicated that members of the phylum Planctomycetes are abundantly present at the brine-seawater interface (BSI) above multiple brine pools in the Red Sea. Planctomycetes include bacteria capable of anaerobic ammonium oxidation (anammox). Here, we investigated the

  19. Female morphology of Philometra rubra (Nematoda: Philometridae), a parasite of the abdominal cavity of the striped sea-bass Morone saxatilis (Moronidae, Perciformes) in the USA

    Czech Academy of Sciences Publication Activity Database

    Moravec, František; Dyková, Iva; de Buron, I.

    2009-01-01

    Roč. 56, č. 1 (2009), s. 64-66 ISSN 0015-5683 R&D Projects: GA MŠk LC522 Institutional research plan: CEZ:AV0Z60220518 Keywords : Philometra * Morone * USA Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine Impact factor: 1.266, year: 2009

  20. Metabolic study of paeoniflorin and total paeony glucosides from Paeoniae Radix Rubra in rats by high-performance liquid chromatography coupled with sequential mass spectrometry.

    Science.gov (United States)

    Zhu, Lijun; Sun, Shanshan; Hu, Yanxi; Liu, Yufeng

    2018-04-01

    A clear understanding of the metabolism of Traditional Chinese Medicines is extremely important in their rational clinical application and effective material foundation research. A novel and reliable strategy was performed to find more metabolites of paeoniflorin, determine the metabolites of total paeony glucosides (TPG) by means of determining those metabolites of paeoniflorin, and compare the metabolism differences between paeoniflorin and TPG by intragastric administration. This strategy was characterized as follows. Firstly, the rats were divided into two groups (the paeoniflorin group and the TPG group) to find differences in metabolism mechanisms between paeoniflorin and TPG. Secondly, UPLC-FT-ICR MS and UPLC-Q-TOF MS 2 were applied to obtain accurate molecular weight and structural information, respectively. Thirdly, the metabolites were tentatively identified by a combination of data-processing methods including mass defect screening, characteristic neutral loss screening and product ion screening. Finally, a comparative study was employed in the metabolism of paeoniflorin and TPG. Based on the strategy, 18 metabolites of paeoniflorin (including four new compounds) and 11 metabolites of TPG (including two new compounds) were identified. In all of the identified metabolites of paeoniflorin, two metabolites in rat plasma, four metabolites in rat urine and six metabolites in rat feces were found for the first time after paeoniflorin administration. The results indicate that hydrolyzation of the ester bond and glucosidic band and conjugation with glucuronide were the major metabolic pathways of paeoniflorin. The metabolites of paeoniflorin and TPG in rat plasma, urine and feces have been detected for the first time after intragastric administration. The results may contribute to a better understanding of the metabolism mechanism and provide a scientific rationale for researching the material basis of paeoniflorin and TPG in vivo. Copyright © 2017 John Wiley & Sons, Ltd.

  1. Renal trematode infection due to Paratanaisia bragai in zoo housed Columbiformes and a red bird-of-paradise (Paradisaea rubra)☆

    Science.gov (United States)

    Unwin, Steve; Chantrey, Julian; Chatterton, James; Aldhoun, Jitka A.; Littlewood, D. Timothy J.

    2012-01-01

    Trematode infections affect a diverse range of avian species and the organs that are parasitised are also very varied. The family Eucotylidae contains seven genera of renal flukes that parasitise various birds. In birds, mild to severe lesions have been reported for species of the genus Paratanaisia, which was originally described from columbiform and galliform specimens collected in South America and has been identified in a number of wild avian species. This paper investigates eight cases of renal trematode infection at Chester Zoo in the UK due to Paratanaisia bragai in five previously unreported species: red bird-of-paradise, Socorro dove, Mindanao bleeding heart dove, laughing dove and emerald dove. Pathological changes, which varied between species, are discussed. A known intermediate snail host Allopeas clavulinum was present in the enclosures but there was no direct evidence of trematode infection. The size of the snails, possible low prevalence and the difficulty of visualising sporocysts contributed to this. Thus the development and application of further molecular diagnostic markers that can be applied to snail tissues is warranted. Parasite identification was confirmed utilizing DNA amplification from formalin-fixed paraffin-embedded tissues using PCR and trematode specific primers. Sequencing full ssrDNA and D1-D3 lsrDNA confirmed the identity in all cases as P. bragai. However, the short 310 bp fragment used provides insufficient variation or sequence length for wider application. The epidemiology, pathology and consequences for the management of these endangered species are discussed. Preliminary work on developing an effective ante mortem diagnostic PCR test kit is also highlighted. PMID:24533313

  2. PERBEDAAN SKIN CAPACITANCE DAN TRANSEPIDERMAL WATER LOSS PADA KULIT NON-LESI PASIEN PITIRIASIS VERSIKOLOR DENGAN NON-PITIRIASIS VERSIKOLOR

    Directory of Open Access Journals (Sweden)

    Satya Wydya Yenny

    2008-09-01

    Full Text Available AbstrakPada pitiriasis versikolor sering timbul kekambuhan, diduga salah satu penyebabnya adalah kelembaban kulit yang tinggi. Kelembaban kulit dipengaruhi oleh skin capacitance dan transepidermal water loss.Mengetahui skin capacitance dan transepidermal water loss kulit pasien pitiriasis versikolor dan perbedaannya dengan non-pitiriasis versikolor.Penelitian ini merupakan studi potong lintang perbandingan antar kelompok, yang dilakukan pada bulan September sampai dengan Nopember 2004 di Rumah Sakit Dr. Cipto Mangunkusumo. Subyek penelitian pasien pitiriasis versikolor dan kontrol non-pitiriasis versikolor yang dipasangkan dalam hal umur dan jenis kelamin dan dilakukan pemeriksaan skin capacitance dan transepidermal water loss pada kulit yang tampak normal di punggung menggunakan alat Tewameter/Corneometer 350.Dalam kurun waktu tersebut telah diperiksa sebanyak 32 pasien pitiriasis versikolor dan 32 kontrol non-pitiriasis versikolor. Skin capacitance pasien pitiriasis versikolor secara statistik tidak berbeda dengan kontrol non-pitiriasis versikolor (p = 0,730. Transepidermal water loss pasien pitiriasis versikolor secara bermakna lebih rendah dari pada kelompok kontrol non-pitiriasis versikolor (p = 0,000.Tidak ada perbedaan skin capacitance kulit pasien pitiriasis versikolor dengan non-pitiriasis versikolor. Transepidermal water loss kulit pasien pitiriasis versikolor lebih rendah daripada non-pitiriasis versikolor.Kata kunci: pitiriasis versikolor, skin capacitance, transepidermal water lossAbstractThe recurrence of pityriasis versicolor is high, it could be caused by high skin hydration. Skin hydration was influenced by skin capacitance and transepidermal water loss.ARTIKEL PENELITIAN168The purpose of this study was to compare the differences of the skin capacitance and transepidermal water loss between the pityriasis versicolor skin and healthy non-pityriasis versicolor skin.The design of this study was comparative cross-sectional study

  3. Environmental Assessment for the Aeromedical Evacuation Formal Training Unit, Wright-Patterson Air Force Base

    Science.gov (United States)

    2012-05-01

    pennsylvanica), White Ash (Fraxinus americana), Shingle Oak (Quercus imbricaria), Northern Red Oak (Quercus rubra), Slippery Elm (Ulmus rubra...American Elm (Ulmus americana), Eastern Cottonwood (Populus deltoides), Silver Maple (Acer saccharinum), Sassafras (Sassafras albidum), Post Oak (Quercus

  4. Polycythemia vera

    Science.gov (United States)

    Primary polycythemia; Polycythemia rubra vera; Myeloproliferative disorder; Erythremia; Splenomegalic polycythemia; Vaquez's disease; Osler's disease; Polycythemia with chronic cyanosis; Erythrocytosis ...

  5. Familial atrophia maculosa varioliformis cutis.

    Science.gov (United States)

    Kalayciyan, Aylin; Kotogyan, Agop; Demirkesen, Cuyan; Tüzün, Yalçin

    2003-07-01

    Atrophia maculosa varioliformis cutis (AVMC) was first described by Heidingsfeld in 1918, as a rarely reported form of idiopathic macular atrophy on the cheek (1). It is characterized, clinically, by shallow, sharply demarcated depressions in various shapes. Extrahepatic biliary atresia (2) and pachydermodactyly (3) have been the only conditions associated with AMVC reported in the past 80 years. Although keratosis pilaris is a common skin disorder, it is related to other idiopathic atrophic conditions considered in the differential diagnosis of AMVC, namely keratosis pilaris atrophicans (4). However, the two associations may be coincidental. We observed a patient with keratosis pilaris, and her brother and an unrelated young man, whose findings led to a diagnosis of AMVC.

  6. Lipid Metabolic Versatility in Malassezia spp. Yeasts Studied through Metabolic Modeling

    NARCIS (Netherlands)

    Triana, Sergio; de Cock, Hans; Ohm, Robin A; Danies, Giovanna; Wösten, Han A B; Restrepo, Silvia; González Barrios, Andrés F; Celis Ramirez, Adriana

    2017-01-01

    Malassezia species are lipophilic and lipid-dependent yeasts belonging to the human and animal microbiota. Typically, they are isolated from regions rich in sebaceous glands. They have been associated with dermatological diseases such as seborrheic dermatitis, pityriasis versicolor, atopic

  7. O espaço gótico em A máscara da morte rubra The gothic spa ce in The masque of the red death

    Directory of Open Access Journals (Sweden)

    Luciana Moura Colucci de Camargo ; Ozíris Borges Filho

    2010-12-01

    Full Text Available Neste trabalho, analisamos o conto de Edgar Allan Poe, A máscara da morterubra, focalizando principalmente a espacialidade. Como suporte teórico,partimos da proposta da Topoanálise, elaborada a partir das ideias de Bachelard,Iuri Lotman, Osman Lins entre outros. Também recorremos ao ensaio de Poe,intitulado Filosofia do mobiliário. Em nossa análise, verificamos que o percursoespacial do texto se divide especialmente pela coordenada da interioridade,revelando-se então em exterior vs. interior. Temos o país como um espaçoenglobante e externo e, como espaço englobado e interior, aparece a abadiapara onde o duque foge com sua corte.In this paper, we analyze the short story The mask of red death by Edgar AllanPoe, focusing primarily on spatiality. As a theoretical starting point, we have theTopoanalysis proposal based on some ideas developed by Bachelard, Lotman,Osman Lins, among others. This paper also turns to Poe’s essay entitled ThePhilosophy of Furniture. In our analysis, we verify that the spatial path of thetext is divided mainly by the coordinate of the interior, revealing outside versus inside. A country as an including and an outward space and, as an enclosed andinterior space is approached by the abbey where the Duke runs away with hiscourt.

  8. First description of the gravid female of Philometra rubra (Leidy, 1856) (Nematoda: Philometridae), a parasite of the abdominal cavity of temperate basses Morone Spp. (Moronidae: Perciformes) in North America

    Czech Academy of Sciences Publication Activity Database

    Moravec, František; de Buron, I.; Measures, L.

    2013-01-01

    Roč. 99, č. 3 (2013), s. 496-500 ISSN 0022-3395 R&D Projects: GA ČR GBP505/12/G112 Institutional support: RVO:60077344 Keywords : Parasitic nematode * Philometra * North America Subject RIV: EA - Cell Biology Impact factor: 1.258, year: 2013

  9. Genotype-phenotype associations in filaggrin loss-of-function mutation carriers

    NARCIS (Netherlands)

    Landeck, Lilla; Visser, Maaike; Kezic, Sanja; John, Swen M.

    2013-01-01

    Loss-of-function mutations in the filaggrin gene (FLG) have been reported to be associated with specific phenotypic characteristics such as hyperlinearity and keratosis pilaris. To study phenotypic features in patients with occupational irritant contact eczema of the hands in relation to FLG

  10. KERATOSIS FOLLICULARIS SPINULOSA DECALVANS: REPORT OF A CASE AND LITERATURE REVIEW

    Directory of Open Access Journals (Sweden)

    P. Mansouri.

    1999-07-01

    Full Text Available Keratosis follicularis spinulosa decalvans (KFSD represents a rare, probably X-linked recessive genodermatosis, characterized by keratosis pilaris of face, trunk and extremities, followed by atrophy, cicatricial alopecia of the scalp, eyebrows and eyelashes, photophobia and corneal abnormalities. We report a rare case of KFSD and review the literature.

  11. A Study of Vegetation Development in Relation to Age of River Stabilization Structures Along a Channelized Segment of the Missouri River.

    Science.gov (United States)

    1975-01-25

    s.ame time period, the first shrub species begin to appear in the sites. Ulmus rubra ( slippery elm ), Celtis occidentalis (hackberry), and Platanus...boxelder), Ulmus americana (American elm ), Ulmus rubra ( slippery elm ), Fra:inus pennsyl- vanica (green ash), and Juglans nigra (black walnut). These may...be replaced by Tilia americana (basswood), the Ulmus americana (American elm ) and Ulmus rubra ( slippery elm ) remaining as co- dominants. Weaver (1960

  12. Use of ionizing radiation in grass breeding. I

    International Nuclear Information System (INIS)

    Indruch, I.; Svetlik, V.; Ligocki, J.

    1980-01-01

    Two subspecies of F. rubra occurring in natural localities of north-east Moravia (CSSR) in the Beskydy Mts. were used. In Festuca rubra L. ssp. genuina grandiflora (Hack.) 2n=8x=56, F. rubra represented a model species used for testing the effects of both acute and chronic gamma irradiation. In Festuca rubra L. ssp. vulgaris (Gaud.) Hay 2n=6x=42, new breeding was realized with success. The effects on important features of grasses were identical in both cases. The extension of combining abilities is especially important because it allows the production of forms less frequent in natural populations. (author)

  13. Evidence-based Danish guidelines for the treatment of Malassezia-related skin diseases

    DEFF Research Database (Denmark)

    Hald, Marianne; Arendrup, Maiken C; Svejgaard, Else L

    2015-01-01

    Internationally approved guidelines for the diagnosis and management of Malassezia-related skin diseases are lacking. Therefore, a panel of experts consisting of dermatologists and a microbiologist under the auspices of the Danish Society of Dermatology undertook a data review and compiled...... guidelines for the diagnostic procedures and management of pityriasis versicolor, seborrhoeic dermatitis and Malassezia folliculitis. Main recommendations in most cases of pityriasis versicolor and seborrhoeic dermatitis include topical treatment which has been shown to be sufficient. As first choice....... Maintenance therapy is often necessary to prevent relapses. In the treatment of Malassezia folliculitis systemic antifungal treatment is probably more effective than topical treatment but a combination may be favourable....

  14. Vegetation in the Flood Plain Adjacent to the Mississippi River between Cairo, Illinois, and St. Paul, Minnesota, and in the Flood Plain of the Illinois River between Grafton, Illinois, and Chicago, and the Possible Impacts That Will Result from the Construction of L & D 26 and the Associated Increase in Barge Traffic,

    Science.gov (United States)

    1975-01-20

    and pecan ( Carya illinoensis ). In the southernmost region of the study area (i.e., Alexander and Union counties, Illinois), swamp cottonwood is a...ash (Fraxinus lanceolata), pecan ( Carya illinoensis ), box elder (Acer negundo), and red mulberry (Morus rubra). Shrubs occurring in the Silver Maple...americana), green ash (Fraxinus lanceolata), pecan ( Carya illinoensis ), sugarberry (Celtis laevigata), and red mulberry (Morus rubra). Also

  15. A Regional Guidebook for Applying the Hydrogeomorphic Approach to the Functional Assessment of Forested Wetlands in Alluvial Valleys of East Texas

    Science.gov (United States)

    2010-10-01

    plant species as the low-gradient riverine subclass. However, species such as American elm (Ulmus americana), slippery elm (Ulmus rubra), winged elm ...americana American elm Ulmus crassifolia cedar elm Ulmus rubra slippery elm Ulmus spp. elm Viburnum nudum possumhaw Vitis rotundifolia muscadine...laurel oak (Q. laurifolia), Shumard oak (Q. shumardii), elms (Ulmus sp.), sweetgum (Liquidambar styraciflua), southern magnolia (Magnolia

  16. Population expansion of some bird species in the city of Wrocław

    Directory of Open Access Journals (Sweden)

    Kopij Grzegorz

    2016-12-01

    Full Text Available During the years 2002-2010, distribution and numbers of eight bird species were studied in the whole city of Wrocław, SW Poland (293 km2. The estimation for these species are as follow: Streptopelia turtur: 3 breeding pairs, Upupa epops: 1, Cuculus canorus: 49, Emberiza hortulana: 7, Luscinia megarhynchos: 214-286, Phoenicurus phoenicurus: 87-118, Turdus pilaris: 105-150, Hippolais icterina: 136-181. In comparison with 1980‘s and 1990’s, a rapid increase in the numbers P. phoenicurus, and T. pilaris, and a slight increase of L. megarhynchos and Cuculus canorus were documented. T. pilaris began to breed in the city in the end of 1990‘s. The increase may indicate that the habitats in Wrocław improved both in regard to food availability, nesting sites and other environmental requisitions. The increase in the numbers recorded for C. canorus, P. phoe-nicurus, and L. megarhynchos may also be a result of good conditions prevailing in their wintering grounds in sub-Saharan Africa.

  17. Photosensitivity to selsun shampoo

    Directory of Open Access Journals (Sweden)

    Mani M

    1994-01-01

    Full Text Available A case of photosensitive dermatitis, occurring after the second application of 2.5% selenium sulphide (Selsun shampoo, Abbot, is reported. The shampoo was diluted to half strength with water, before use. The patient had pityriasis versicolor, with extensive lesions on the covered as well as exposed areas.

  18. Nutritional Potential of the Leaves of Acalypha wilkesiana ...

    African Journals Online (AJOL)

    Michael Horsfall

    the expressed juice or boiled decoction is used for the treatment of gastrointestinal disorders and fungal skin infections such as Pityriasis versicolar, Impetigo .... boost the immune system (Basu, 2007; Best, 2006), and are precursors of vitamin A (Chaney, 2006). β-. Carotene is used as a food colorant. Our results show.

  19. Author Details

    African Journals Online (AJOL)

    Deji-Agboola, AM. Vol 7, No 2 (2008) - Articles In-vitro Antimicrobial Efficacy of Carex Powerful Antiseptic Liquid Abstract · Vol 9, No 2 (2010) - Articles Predisposing Factors to Pityriasis Versicolor in Primary School Pupils in Remo Land, Ogun State, Nigeria Abstract. ISSN: 1595-8272. AJOL African Journals Online. HOW TO ...

  20. 杨梅叶水溶性提取物的抗氧化、抗菌活性与防腐应用

    Czech Academy of Sciences Publication Activity Database

    君酸, 杨.; 云酸, 朱.; 清酸, 吴.; 洁酸, 尹.; Langhansová, Lenka; Vaněk, Tomáš; 生酸, 高.

    2014-01-01

    Roč. 28, č. 2 (2014), s. 198-202 ISSN 1006-2513 Institutional support: RVO:61389030 Keywords : Myrica rubra leaf * antioxidation * antisepsis Subject RIV: EF - Botanics http://d.g.wanfangdata.com.cn/Periodical_zgsptjj201402029.aspx

  1. 76 FR 66954 - Endangered Species; Receipt of Applications for Permit

    Science.gov (United States)

    2011-10-28

    ...). black lemur (Eulemur macaco). brown lemur (Eulemur fulvus). black and white ruffed lemur (Varecia...). black and white ruffed lemur (Varecia variagata). red ruffed lemur (Varecia rubra). black lemur (Eulemur...

  2. Dietary effect of silage type and combination with camelina seed on ...

    African Journals Online (AJOL)

    Daniel

    2015-02-07

    Feb 7, 2015 ... 57% Dactylis glomerata, 10% Phleum pratense, 8% Poa pratensis, 7% Festuca rubra, .... may be attributed to microbial protein synthesis being energetically more efficient on ..... Association of Official Analytical Chemists, Inc.

  3. Post Gliphosate treatments establishment of some grasses

    OpenAIRE

    Ioan ROTAR; Mariana RUSU; Fl. PRICA

    1997-01-01

    The sward dominated by Festuca rubra/Agrostis tenuis was treated to reduce the Nardus component and others weed by spraying with Gliphosate. Treatments were applied in the autumn of 1993. In the spring of 1994 a mixture of Phleum pratense, Fesuca rubra, Dactylis glomerata, Trifolium repens and Lotus corniculatus was oversown. Establishment of each species and botanical composition of the pasture were measured over the next three years. Nardus and weed was largely replaced by Phleum/Festuca mi...

  4. Vegetation Evaluation and Recommendations: Dredge Material Placement Areas and Adjacent Lands, Kaskaskia River Navigation Project, New Athens to Fayetteville.

    Science.gov (United States)

    1981-06-03

    cottonwood), Salix interior (sandbar willow), Salix nigra (black willow), and Ulmus rubra * ( slippery elm ) . Somewhat drier sites with a predominance of fine...Dutch Elm Disease. *Ulmus rubra Muhl. SLIPPERY ELM . Common tree in floodplain woods; also occasional in DMP. *Valerianella radiata (L.) Dufr. CORN... elm ), Carya tomentosa (mocker- nut hickory), and Quercus bicolor (swamp white oak). Shrubs and woody vines play a major role in the ecology of these

  5. Study on the Effects of Diverting Water into Upper Burnt Pocket, Navigation Pool Number 18, Illinois and A Field Test of the Regression Simulation Model Previously Developed on Navigation Pool Number 8.

    Science.gov (United States)

    1981-03-01

    latifolia L. Commuon Cattail ULMACEAE Celtis occidentalis L. Hackberry Ulmus rubra Muhl. Slippery Elm Ulmus americana L. American Elm URTICACEAE...Populus deltoides Marsh. Cottonwood Celtis occidentalis L. Hackberry Ulmus rubra Muhl. Slippery Elm Ulmus americana L. American Elm *Dominant or most...Cryptochironomus sn. Tnta - Tanytarsus sp. Phys - Physa sp. Crcl n Crytoclido elm sp. Epio - Epoicocladius sp. Trun - Truncilla sp, Elnf - Einfeldia sp. Eusi

  6. Early Development of Squamous Cell Carsinoma in Two Sister Cases with pidermodysplasia Verruciformis

    Directory of Open Access Journals (Sweden)

    Ömer Çalka

    2010-06-01

    Full Text Available Epidermodysplasia verruciformis (Lewandowsky-Lutz syndrome is an uncommon disease characterized by multiple plane warts, pityriasis versicolor-like lesions, defects of cell-mediated immunity, and tendency to develop skin malignancies, primarily on sun-exposed areas. Most commonly it is inherited as an autosomal recessive trait. Squamous cell carcinoma is the most common type of skin cancer found in patient with epidermodysplasia verruciformis. Human papilloma virus 5, 8, and 47 are found in more than 90% of epidermodysplasia verruciformis skin cancers. Treatment for epidermodysplasia verruciformis consists largely of preventive measures. Photoprotection remains essential for management. In this report, two sister case of epidermodisplasia verruciformis with plane warts, pityriasis versicolor-like lesions, and squamous cell carcinomas on sun-exposed areas of skin was presented for it is a rarely encountered disease and associated with early development of malignancy.

  7. Macrolides in Chronic Inflammatory Skin Disorders

    Directory of Open Access Journals (Sweden)

    Abdullateef A. Alzolibani

    2012-01-01

    Full Text Available Long-term therapy with the macrolide antibiotic erythromycin was shown to alter the clinical course of diffuse panbronchiolitis in the late 1980s. Since that time, macrolides have been found to have a large number of anti-inflammatory properties in addition to being antimicrobials. These observations provided the rationale for many studies performed to assess the usefulness of macrolides in other inflammatory diseases including skin and hair disorders, such as rosacea, psoriasis, pityriasis rosea, alopecia areata, bullous pemphigoid, and pityriasis lichenoides. This paper summarizes a collection of clinical studies and case reports dealing with the potential benefits of macrolides antibiotics in the treatment of selected dermatoses which have primarily been classified as noninfectious and demonstrating their potential for being disease-modifying agents.

  8. [Amyloidosis maculosa: diagnosis in primary care].

    Science.gov (United States)

    Toribio da Pena, S R; Olmos, O; Borbujo, J; Bastos Amigo, J A; Jiménez-Sánchez, F; Alonso, A

    1990-01-01

    Amyloidosis maculosa is a clinical entity with low incidence factor in our medium, which basically affects middle-aged women. The lesion is characterised by the presence of poorly defined, hyperpigmented, brownish or greyish maculae that converge and focus basically on the upper back and shoulders, usually accompanied by pruritus. Three patients were erroneously catalogued for years as having pityriasis versicolor. Two of these patients presented a typical clinical amyloidosis maculosa, and the third presented a less common manifestation of the disease: a single, well-defined lesion in the subscapular region. We believe that the approach to the diagnosis of pityriasis versicolor with hyperpigmented lesions that do not respond to specific treatment should be revised. Although amyloidosis maculosa has a low incidence in our medium, it is an entity which should not be discarded in these cases.

  9. Macrolides in Chronic Inflammatory Skin Disorders

    Science.gov (United States)

    Alzolibani, Abdullateef A.; Zedan, Khaled

    2012-01-01

    Long-term therapy with the macrolide antibiotic erythromycin was shown to alter the clinical course of diffuse panbronchiolitis in the late 1980s. Since that time, macrolides have been found to have a large number of anti-inflammatory properties in addition to being antimicrobials. These observations provided the rationale for many studies performed to assess the usefulness of macrolides in other inflammatory diseases including skin and hair disorders, such as rosacea, psoriasis, pityriasis rosea, alopecia areata, bullous pemphigoid, and pityriasis lichenoides. This paper summarizes a collection of clinical studies and case reports dealing with the potential benefits of macrolides antibiotics in the treatment of selected dermatoses which have primarily been classified as noninfectious and demonstrating their potential for being disease-modifying agents. PMID:22685371

  10. Population Densities of Birds Breeding in Urbanized Habitats in the Grabiszyn District in the City of Wrocław

    Directory of Open Access Journals (Sweden)

    Kopij Grzegorz

    2014-11-01

    Full Text Available Studies were carried out in 2010 by mean of simplified version of the mapping method. The study area (395 ha was located close to the city centre. It comprised a mosaic of urbanized habitats, with a clear dominance of green areas, such as parks (41.1 ha, gardens, cemeteries and tree clumps. A total of 48 breeding bird species were recorded in the whole study area. The most common (<25 pairs/100 ha were Passer domesticus, Passer montanus, Sturnus vulgaris, Parus caeruleus, Parus major, Apus apus and Columba livia. Numerous (7-15 pairs/100 ha were also the following species: Columba palumbus, Turdus pilaris, Sylvia atricapilla, Serinus serinus, Turdus merula and Pica pica. Insectivorous birds were the most common birds constituting 63.3%, and granivorous -32.6% of all pairs recorded. Most birds nested in tree holes (39.3%, in/on buildings (30.2% and in trees/shrubs (25.6%. Distribution of breeding pairs of 23 bird species was presented on maps. Population trends for 17 species were documented. Rapid increase in numbers of Turdus pilaris, Corvus cornix and Phoenicurus phoenicurus and decrease of Pica pica were recorded.

  11. Adoption of parasitic Maculinea alcon caterpillars (Lepidoptera : Lycaenidae) by three Myrmica ant species

    DEFF Research Database (Denmark)

    Als, Thomas Damm; Nash, David Richard; Boomsma, J. J.

    2001-01-01

    Maculinea butterflies are parasites of Myrmica ant nests. The Alcon blue, Maculinea alcon, is unusual in that it parasitizes the nests of several Myrmica species, using M. rubra, M. ruginodis and M. scabrinodis as hosts in different parts of Europe. In Denmark it uses M. rubra and M. ruginodis....... alcon from three populations differing in their host use to laboratory nests of all three recorded host ant species collected from each of the M. alcon populations. We measured the attractiveness of the caterpillars to their host ants as the time taken for them to be adopted by each ant colony....... Caterpillars from all populations took longer to be adopted to M. scabrinodis nests than to nests of the other two ant species. Adoption times to M. rubra and M. ruginodis colonies differed: caterpillars from each of the two populations that used a single host species were adopted most quickly by that species...

  12. Stem rust (Puccinia graminis ssp. graminicola Urban its hosts and harmfulness in grasses grown for seed

    Directory of Open Access Journals (Sweden)

    Maria Prończuk

    2013-12-01

    Full Text Available Stem rust development on four species of grasses was studied in field experiments conducted at Radzików in 1997-2001. Population of Puccinia graminis ssp. graminicola from different hosts was characterised and their harmfulness for grass grown for seed was estimated. The materials for study were ecotypes and strains of Lolium perenne, Festuca rubra, Poa pratensis and Deschampsia caespitosa collected in breeding nursery and cultivars and strains of L.perenne, F.rubra, P.pratensis cultivated for seed. It was found that the changes in environmental conditions during last years influenced earlier occurrence of stem rust on grasses in Poland. All examined species were the host of P.graminis ssp. graminicola, however the period of infection of particular hosts were different. L.perenne and D.caespitosa were infected in early summer but F.rubra and P.pratensis in late summer or in the autumn. Morphological analysis of spores of P.graminis ssp. graminicola have shoved significant differences between populations obtained from L.perenne and D.caespitosa. Some differences were found between populations from F.rubra and P.pratensis also, but they need more study. Every year occurrence of stem rust on L.perenne and D.caespitosa and its relation with spring temperature in Radzików indicated that populations of patogen could overwinter in local turf. Incidental appearance of stem rust on F.rubra and P.pratensis in centre of Poland allowed to suppose that spores of these forms might be transfer by wind from other regions. The investigation revealed that stem rust can be dangerous for L.perenne grown for seed when infection occurs at flowering time. It has been established that infection of F.rubra and P.pratensis in autumn should not be disregarded. Damages of leaves by P.graminis ssp. graminicola substantially limited plant heading in the next year.

  13. Environmental research - development of the material balance of oak tree ecosystems on quaternary spoil bank substrates of coal mines; Umweltforschung - Entwicklung des Stoffhaushaltes von Eichenoekosystemen auf quartaeren Kippsubstraten des Braunkohlenbergbaues

    Energy Technology Data Exchange (ETDEWEB)

    Katzur, J.; Knoche, D.

    2000-07-01

    Investigations have shown that even the very first forest generation on spoil banks already have high vitality. However, it is well known that pioneering terrestrial ecosystems have a high water and material turnover dynamics which will quickly influence the soil at that site but is not an indication of the development of a stable ecosystem. Long-term measurements were therefore made in oak forest ecosystems on quaternary spoil bank sands in order to achieve a quantification (Boxberg: Q. rubra L., 2 years; Kleinleipisch: Q. rubra L., 21 years; Annahuetter: Q. rubra L., 63 years). The results were compared with a virgin soil reference site (Neusorgefeld: Q. rubra L., 41 years). [German] Seit Jahrzehnten praegen Braunkohlentagebaue das Landschaftsbild und den Wasserhaushalt der Niederlausitz. Bislang wurden ca. 770 km{sup 2} ueberwiegend forstlich genutzter Flaechen devastiert und auf 2.100 km{sup 2} rund 9,5 Mrd. m{sup 3} statischer Grundwasservorraete entnommen. Im Zuge der seit 1990 drastisch verringerten Kohlefoerderung und forcierten Bergbausanierung erreicht die Rekultivierungsflaeche zwischenzeitlich rund 450 km{sup 2}, wobei die forstliche Folgenutzung mit 60% der Flaeche dominiert. Zahlreiche wachstumskundliche Untersuchungen belegen, dass sich bereits in der ersten Waldgeneration auf Kippe wuechsige und vitale Bestaende etablieren. Vegetations- und ertragskundliche Parameter wie z.B. Artenzusammensetzung, Naehrstoffversorgung, laufender Zuwachs oder Vorratshaltung sind jedoch per se noch keine hinreichenden Kriterien zur Einschaetzung der Entwicklungsdynamik und damit des angestrebten Rekultivierungserfolgs. Bekannterweise zeichnen sich im Aufbau befindliche terrestrische Oekosysteme generell durch eine ausgepraegte Wasser- und Stoffdynamik aus, welche im Zuge bodengenetischer Prozesse meist eine rasche Standortveraenderung bewirkt. Da das Standortpotential zum Rekultivierungszeitpunkt nicht prognostiziert werden kann, ist offen, ob sich bereits in der

  14. Disposition of two names in Almeidea (Rutaceae Disposição de dois nomes em Almeidea (Rutaceae

    Directory of Open Access Journals (Sweden)

    Milton Groppo

    2010-12-01

    Full Text Available Examination of type specimens at the P herbarium showed that Almeidea longifolia A. St.-Hil. (Rutaceae is an illegitimate substitute name for A. affinis A. St.-Hil. The latter name is proposed here as a heterotypic synonym of A. rubra A. St.-Hil.O estudo dos tipos nomenclatórios no herbário P mostrou que Almeidea longifolia A. St.-Hil. (Rutaceae é um nome substituto ilegítimo de Almeidea affinis A. St.-Hil., e este último nome é aqui considerado sinônimo heterotípico de A. rubra A. St.-Hil.

  15. [Studies on the novel association of human herpesvirus-7 with skin diseases].

    Science.gov (United States)

    Vág, Tibor; Sonkoly, Enikó; Kemény, Béla; Kárpáti, Sarolta; Horváth, Attila; Ongrádi, József

    2003-08-17

    Human herpesvirus 7 in pityriasis rosea, this and other viruses in papular-purpuric gloves-and-socks syndrome have been implicated, but their primary or recurrent infections are still in question. In one available blood sample, therefore, IgM, IgG and its high avidity fraction characteristic for recurrent infections were quantitated by indirect immunofluorescence. Peripheral lymphocytes were subjected to nested polymerase chain reaction to detect viral DNA, or cocultivated with several cell cultures. One third of 33 pityriasis rosea patients had elevated IgM, another third had elevated IgG without high avidity molecules to human herpesvirus 7 suggesting primary infection. Thirty percent of controls, more than half of the patients had virtual DNA in their lymphocytes, but only one in 5 skin biopsy specimens were PCR positive. All three co-cultivation attempts yielded viruses extremely rapidly, verified by electron microscopy, polymerase chain reaction and monoclonal antibodies as human herpesvirus 7. These are the first isolates in the geographical regions of Hungary. These data suggest that pityriasis rosea is the consequence of a primary human herpesvirus 7 infection in seronegative adults, and only occasionally is due to virus reactivation. One patient with gloves-and-socks syndrome had an acute, another patient had a persistent coinfection with human herpesvirus 7 and parvovirus B19, two others had a primary herpesvirus 7 infection. Interestingly, this disease might be elicited by both viruses individually or in synergism. Neither human herpesvirus 7 nor parvovirus B19 infect skin cells, but both can be detected in the infiltrating lymphocytes of skin eruptions, in which they induce an altered mediator production, that might be responsible for the general and local symptoms.

  16. A Study to Establish a Measure of Clinical Productivity among Physicians in the Department of Family Practice Outpatient Clinics, Madigan Army Medical Center

    Science.gov (United States)

    1987-07-01

    789.0 7890 pelvic ) (64) 61 Psoriasis and Pityriasis (70) 696.0 to 696.9 6961,6963 62 Irritable Colon (72) 564.1 558- 564.5 63 Chronic Cystic Disease of...075.9 573.3 80 Chronic Ulcer of Skin 707.0 to 707.9 707- (-) 81 Strabismus (84) 378.0 to 378.9 No equivalent separate code 82 Diverticular Disease of...of ensuring product ( disease treatment) output... (Arbitman, 1986, p. 31). Along with new developments in productivity measurement in the inpatient

  17. Tioconazole in the treatment of fungal infections of the skin. An international clinical research program.

    Science.gov (United States)

    O'Neill East, M; Henderson, J T; Jevons, S

    1983-01-01

    In 32 studies involving 1,304 patients tioconazole 1% dermal cream has been shown to be effective and safe in the treatment of a wide variety of superficial fungal infections of the skin and erythrasma. Tioconazole cream is more effective than miconazole nitrate 2% cream in the treatment of pityriasis versicolor and in infections with Trichophyton rubrum and Trichophyton mentagrophytes which cause 70% of dermatophyte infections in man. Data from comparisons with econazole and clotrimazole are too few to allow conclusions to be drawn on relative efficacy. All the creams were easy to apply and there were no serious adverse reactions, local or systemic.

  18. Spatial variation in population dynamics of Sitka mice in floodplain forests.

    Science.gov (United States)

    T.A. Hanley; J.C. Barnard

    1999-01-01

    Population dynamics and demography of the Sitka mouse, Peromyscus keeni sitkensis, were studied by mark-recapture live-trapping over a 4-year period in four floodplain and upland forest habitats: old-growth Sitka spruce (Picea sitchensis) floodplain; red alder (Alnus rubra) floodplain; beaver-pond...

  19. Within-population variation in response of red oak seedlings to herbivory by gypsy moth larvae

    Science.gov (United States)

    T. Scott Byington; Kurt W. Gottschalk; James B. McGraw

    1994-01-01

    The potential for an evolutionary response to gypsy moth (Lymantna dispar L.) herbivory was investigated in red oak (Quercus rubra L.), a preferred host. Seedlings of nine open-pollinated families were grown in a greenhouse and experimentally defoliated by fourth instar larvae in the summer of 1991 to assay for intraspecific...

  20. Virulence, sporulation, and elicitin production in three clonal lineages of Phytophthora ramorum

    Science.gov (United States)

    Phytophthora ramorum populations are clonal and consist of three lineages. Recent studies have shown that the clonal lineages may have varying degrees of aggressiveness on some host species, such as Quercus rubra. In this study, we examined virulence, sporulation and elicitin production of five P. ...

  1. Development of northern red oak rooted cutting and enrichment planting systems

    Science.gov (United States)

    Matthew H. Gocke; Jamie Schuler; Daniel J. Robison; Barry Goldfarb

    2005-01-01

    Enrichment planting may provide an efficient means to establish elite northern red oak (Quercus rubra L.) genotypes in recently harvested natural forests. However, planting northern red oak (NRO) seedlings into natural stands has proven difficult in the past, especially when competition and other stress factors are not controlled.

  2. Adaptability of black walnut, black cherry, and Northern red oak to Northern California

    Science.gov (United States)

    Philip M. McDonald

    1987-01-01

    When planted in sheltered sites in northern California, only 49% of black walnut (Juglans nigra L.) and 58% of black cherry (Prunus serotina Ehrh.) survived for 15 years, and 20% of northern red oak (Quercus rubra L.) survived for 10 years. The black walnut trees averaged 0.6 inches diameter at breast...

  3. Transgenerational plasticity as an important mechanism affecting response of clonal species to changing climate

    Czech Academy of Sciences Publication Activity Database

    Münzbergová, Zuzana; Hadincová, Věroslava

    2017-01-01

    Roč. 7, č. 14 (2017), s. 5236-5247 ISSN 2045-7758 R&D Projects: GA ČR GA15-07795S Institutional support: RVO:67985939 Keywords : climatic extrems * common garden experiment * epigenetic memory * Festuca rubra Subject RIV: EF - Botanics OBOR OECD: Plant sciences, botany Impact factor: 2.440, year: 2016

  4. Phylloplane bacteria increase the negative impact of food limitation on insect fitness

    NARCIS (Netherlands)

    Olson, Grant L.; Myers, Judith H.; Hemerik, Lia; Cory, Jenny S.

    2017-01-01

    1. When populations of herbivorous insects increase in density, they can alter the quantity or quality of their food. The impacts of diet-related stressors on insect fitness have been investigated singly, but not simultaneously. 2. Foliage quantity and quality of red alder, Alnus rubra, were

  5. Size of Douglas-fir trees in relation to distance from a mixed red alder - Douglas-fir stand

    Science.gov (United States)

    R.E. Miller; D.L. Reukema; T.A. Max

    1993-01-01

    Variation in diameter, height, and stem volume of 57-year-old Douglas-fir(Pseudotsuga menziesii var. menziesii (Mirb.) Franco) was related to distance of these trees from a 27 m wide strip in the same Douglas-fir plantation that had been interplanted with red alder (Alnus rubra Bong.). Within the...

  6. Elm genetic diversity and hybridization in the presence of Dutch elm disease

    Science.gov (United States)

    Johanne Brunet; Raymond P. Guries

    2017-01-01

    The impact of Dutch elm disease (DED) on the genetic diversity of slippery elm (Ulmus rubra) is summarized and its potential impact on the genetic diversity of other North American native elms, American elm (U. americana), rock elm (U. thomasii), winged elm (U. alata), cedar elm (

  7. Chemical basal treatment to control red alder.

    Science.gov (United States)

    Robert H. Ruth; Carl M. Berntsen

    1956-01-01

    A key to better restocking of conifers on recently cutover forest land in the Oregon Coast Range is the elimination of competition from red alder (Alnus rubra Bong.). This can be readily accomplished with a foliage spray containing 2,4-dichlorophenoxyacetic acid (2.4-D). Tests in 1954 and 1955 on the Cascade Head Experimental Forest have shown that...

  8. Partitioning of current photosynthate to different chemical fractions in leaves, stems, and roots of northern red oak seedlings during episodic growth

    Science.gov (United States)

    Richard E. Dickson; Patricia T. Tomlinson; J. G. Isebrands

    2000-01-01

    The episodic or flushing growth habit of northern red oak (Quercus rubra L.,) has a significant influence on carbon fixation, carbon transport from source leaves, and carbon allocation within the plant; however, the impact of episodic growth on carbon parciprioning among chemical fractions is unknown. Median-flush leaves of the first and second flush...

  9. Aluminum solubility and mobility in relation to organic carbon in surface soils affected by six tree species of the northeastern United States

    NARCIS (Netherlands)

    Dijkstra, F.A.; Fitzhugh, R.D.

    2003-01-01

    We compared Al solubility and mobility in surface soils among six tree species (sugar maple [Acer saccharum], white ash [Fraxinus americana], red maple [Acer rubrum, L.], American beech [Fagus grandifolia, Ehrh.], red oak [Quercus rubra, L.], and hemlock [Tsuga canadensis, Carr.]) in a mixed

  10. Temple tree; Frangipani-common name; Gopur- champa - Sanskrit

    Indian Academy of Sciences (India)

    Plumeria rubraL. Syn. P. acutifoliaPoir. (Temple tree; Frangipani-common name; Gopur- champa - Sanskrit, Hindi) of Apocynaceae is an ornamental tree that is often cultivated in gardens and near temples. Both leaves and flowers are showy and contain milky latex. Flowers are in bunches, large and white with yellow ...

  11. Looking for the ants: selection of oviposition sites by two myrmecophilous butterfly species

    NARCIS (Netherlands)

    Wynhoff, I.; Grutters, M.; Langevelde, van F.

    2008-01-01

    Obligate myrmecophilous butterfly species, such as Maculinea teleius and M. nausithous that hibernate as caterpillar in nests of the ant species Myrmica scabrinodis and M. rubra respectively, have narrowly defined habitat requirements. One would expect that these butterflies are able to select for

  12. Hyperdiversity of ectomycorrhizal fungus assemblages on oak seedlings in mixed forests in the southern Appalachian Mountains

    Science.gov (United States)

    John F. Walker; Orson K. Miller; Jonathan L. Horton

    2005-01-01

    Diversity of ectotrophic mycobionts on outplanted seedlings of two oak species (Quercus rubra and Quercus prinus) was estimated at two sites in mature mixed forests in the southern Appalachian Mountains by sequencing nuclear 5.8S rRNA genes and the flanking internal transcribed spacer regions I and II (ITS). The...

  13. Haematological malignancy in the adult

    International Nuclear Information System (INIS)

    Mair, G.

    1986-01-01

    The emphasis in this chapter has been placed on those aspects of treatment of the following haematological malignancies of particular relevance to the radiotherapist: acute lymphoblastic leukemia, acute non-lymphocytic leukemia, chronic granulocytic leukemia, chronic lymphocytic leukemia extramedullary leukemic deposits, granulocytic sarcoma, polycythaemia rubra vera, myelofibrosis, multiple myeloma, solitary plasmacytoma. (U.K.)

  14. Long-term above-ground biomass production in a red oak-pecan agroforestry system

    Science.gov (United States)

    Agroforestry systems have widely been recognized for their potential to foster long-term carbon sequestration in woody perennials. This study aims to determine the above-ground biomass in a 16-year-old red oak (Quercus rubra) - pecan (Carya illinoinensis) silvopastoral planting (141 and 53 trees ha-...

  15. Character-marked furniture made from red alder harvested in southeast Alaska: product perspectives from consumers and retailers

    Science.gov (United States)

    Matthew Bumgardner; David Nicholls; Valerie Barber

    2009-01-01

    In recent decades. red alder (Alnus rubra Bong.) has become an important Pacific Northwest hardwood in appearance-grade lumber markets, such as exports, furniture, and cabinets. However, red alder generally is a short-lived pioneer species, and small logs can result in proportionally large volumes of lower grade lumber containing numerous visual...

  16. Response of northern red oak, black walnut, and white ash seedlings to various levels of simulated summer deer browsing

    Science.gov (United States)

    Robert C. Morrissey; Douglass F. Jacobs; John R. Seifert

    2008-01-01

    Understanding the response of tree seedlings to browsing by white-tailed deer (Odocoileus virginianus Zimmerman) is critical to the management of high value hardwood plantations in the Central Hardwood Forest Region. One-year-old black walnut (Juglans nigra L.), northern red oak (Quercus rubra L.), and white ash...

  17. Temporal development of vegetation and geomorphology in a man-made beach-dune system by natural processes

    DEFF Research Database (Denmark)

    Vestergaard, Peter

    2006-01-01

    with F. rubra and the invasive alien Rosa rugosa. It was concluded, that the main trends in the geomorphological and vegetational development of the man-made beach-dune system is similar to the development in natural dunes. In the future, further accretion and seaward dune formation may be expected...

  18. Developing Biomass Equations for Western Hemlock and Red Alder Trees in Western Oregon Forests

    Science.gov (United States)

    Krishna Poudel; Hailemariam Temesgen

    2016-01-01

    Biomass estimates are required for reporting carbon, assessing feedstock availability, and assessing forest fire threat. We developed diameter- and height-based biomass equations for Western hemlock (Tsuga heterophylla (Raf.) Sarg.) and red alder (Alnus rubra Bong.) trees in Western Oregon. A system of component biomass...

  19. Variability of crossreactivity of IgE antibodies to group I and V allergens in eight grass pollen species

    NARCIS (Netherlands)

    van Ree, R.; Driessen, M. N.; van Leeuwen, W. A.; Stapel, S. O.; Aalberse, R. C.

    1992-01-01

    Crossreactivity to Dactylis glomerata, Festuca rubra, Phleum pratense, Anthoxanthum odoratum, Secale cereale, Zea mays, and Phragmites communis of IgE antibodies against Lol p I or Lol p V was investigated by means of RAST-inhibition. Within a group of sera the degree of crossreactivity was

  20. Millipede damage to germinating acorns of northern red oak

    Science.gov (United States)

    Jimmy R. Galford; L. R. Auchmoody; Russell S. Walters; H. Clay. Smith; H. Clay. Smith

    1992-01-01

    Millipedes have not been reported as pests of germinating acorns. Studies in Pennsylvania on the impact of insects on northern red (Quercus rubra L. seedling establishment revealed that the millipede Ptyoiulus impressus (Say) damaged the radicles of germinating acorns. Up to 17 percent of the acorn radicles in areas with heavy acorn crops were damaged in 1'991....

  1. Variation in damage from growing-season frosts among open-pollinated families of red alder.

    Science.gov (United States)

    Kevin C. Peeler; Dean S. DeBell

    1987-01-01

    Repeated growing-season frosts during late April and early May 1985 caused extensive damage to red alder (Alnus rubra Bong.) seedlings in a newly planted research trial in western Washington. About two-thirds of the seedlings were severely damaged (entire stem damaged or necrotic). Such damage varied by family, from 50 percent of seedlings in the...

  2. Heritability of first-order lateral root number in Quercus: implication for artificial regeneration of stands

    Science.gov (United States)

    Paul P. Kormanik; Shi-Jean S. Sung; Taryn L. Kormanik; Stanley L. Zarnoch; Scott Schlarbaum

    2000-01-01

    Natural regeneration of oak (Quercus) species in the USA has been easy to obtain on the lower quality xeric sites (site index less than or equal to 20 m at age 50) by developing advanced oak reproduction before stands are harvested. This approach has not been successful with Q. rubra, Q. pagoda, or Q. alba...

  3. Hypertext and Multimedia for Functional Enhancement of USARIEM Medical Handbooks and Biomedical Simulation Software.

    Science.gov (United States)

    1994-12-01

    complex Internet addresses. Hypertext and hypermedia documents have logical and physical structure (Shneiderman, 1993). The logical structure delineates...Rubra, Miliaria Profunda , Anhidrotic Heat Exhaustion, Heat Syncope, Heat Edema, Sunburn, and Heat Tetany. The user may return to the main document...military or scientific organizations via digital communications networks such as the Internet . Access clearance would first be obtained from the USARIEM

  4. Fytopatologické aspekty fytocenologické dynamiky a možnosti harmonizace produkčních a mimoprodukčních funkcí travních porostů

    Czech Academy of Sciences Publication Activity Database

    Voženílková, B.; Květ, Jan

    2001-01-01

    Roč. 18, č. 2 (2001), s. 99-102 ISSN 1212-0731 R&D Projects: GA ČR GA206/99/1410 Institutional research plan: CEZ:AV0Z6005908 Keywords : mountain grassland * management * fungus infestation * Microdochium nivale * Fusarium solani * Festuca rubra * Deschampsia cespitosa * Holcus mollis Subject RIV: EH - Ecology, Behaviour

  5. An inverse moisture diffusion algorithm for the determination of diffusion coefficient

    Science.gov (United States)

    Jen Y. Liu; William T. Simpson; Steve P. Verrill

    2000-01-01

    The finite difference approximation is applied to estimate the moisture-dependent diffusion coefficient by utilizing test data of isothermal moisture desorption in northern red oak (Quercus rubra). The test data contain moisture distributions at discrete locations across the thickness of specimens, which coincides with the radial direction of northern red oak, and at...

  6. Responses of northern red oak seedlings to lime and deer exclosure fencing in Pennsylvania

    Science.gov (United States)

    Robert P. Long; Patrick H. Brose; Stephen B. Horsley

    2012-01-01

    In Pennsylvania, two hypotheses compete to explain the chronic oak (Quercus spp.) regeneration problem: excessive deer browsing and soil cation depletion. We tested these hypotheses by evaluating the effect of forest liming and deer exclosure fencing on northern red oak (Quercus rubra L.) seedling growth and nutrition in five...

  7. Effects of uneven-aged and diameter-limit management on West Virginia tree and wood quality

    Science.gov (United States)

    Michael C. Wiemann; Thomas M. Schuler; John E. Baumgras

    2004-01-01

    Uneven-aged and diameter-limit management were compared with an unmanaged control on the Fernow Experimental Forest near Parsons, West Virginia, to determine how treatment affects the quality of red oak (Quercus rubra L.), sugar maple (Acer saccharum Marsh.), and yellow-poplar (Liriodendron tulipifera L.). Periodic harvests slightly increased stem lean, which often...

  8. Studies on yeasts and yeast-like microorganisms in the denitrification unit biocenosis

    Directory of Open Access Journals (Sweden)

    Elena Sláviková

    2014-08-01

    Full Text Available It was found that Candida famata, Hansenula californica and Rhodotorula rubra occurred in reactor UASB-type biocenosis in the course of denitrification carried out in the presence of lactic acid as a carbon source. The role of those species in nitrogen removal process was discussed with respect to their physiology.

  9. Search of yeast-like fungi in some lakes of the Tucholski Landscape Park (NW Poland

    Directory of Open Access Journals (Sweden)

    Anna Rózga

    2014-08-01

    Full Text Available The occurrence of pathogenic yeast-like fungi was determined in the catchment of the Suska and Raciąska Struga. Fourteen strains of fungi from 3 genera were isolated: Candida inconspicua, C. lambica, C. glabrata, Rhodotorula rubra, Rh. glutinls and Trichosporon capitatum.

  10. Red alder kitchen cabinets—How does application of commercial stains influence customer choice?

    Science.gov (United States)

    David Nicholls; Joseph. Roos

    2007-01-01

    A better understanding of consumer reaction and preferences for red alder (Alnus rubra Bong.) secondary products will help Alaska producers in entering new markets. In this study, red alder kitchen cabinets were commercially stained to six different levels and displayed at home shows in Portland, Oregon, and Anchorage, Alaska. The stains simulated...

  11. Do chestnut, northern red, and white oak germinant seedlings respond similary to light treatments? II. Gas exchange and chlorophyll responses

    Science.gov (United States)

    Joanne Rebbeck; Amy Scherzer; Kurt. Gottschalk

    2012-01-01

    Understanding differences in physiological and growth strategies in low-light environments among upland oak species may help managers address the challenges of oaks' poor regeneration. Gas exchange and chlorophyll content were measured for northern red oak (Quercus rubra L.), chestnut oak (Quercus prinus L.), and white oak (...

  12. Amplification of North American Red Oak Microsatellite Markers in European White Oaks and Chinese Chestnut

    Science.gov (United States)

    P. R. Aldrich; M. Jagtap; C. H. Michler; J. Romero-Severson

    2003-01-01

    We examined the cross-species amplification success of thirty microsatellite markers developed from North American northern red oak (Quercus rubra) in other members of the family Fagaceae. Sixteen of these markers are newly developed and we report primer sequences and amplification conditions here. Twelve of the thirty (40.0%) red oak markers...

  13. Impact of soil nematodes on salt-marsh plants : a pilot experiment

    NARCIS (Netherlands)

    Dormann, CF; van der Wal, R

    2001-01-01

    We tested whether the removal of nematodes by means of nematicide application changed plant performance or influenced plant competition. The study involved the two common plant species Artemisia maritima and Festuca rubra growing in intact sods collected from a temperate salt marsh. Half of the sods

  14. Neighborhood effects and genetic structure in a clonal grass: The role of the spatial structure of the environment

    Czech Academy of Sciences Publication Activity Database

    Herben, Tomáš; Hara, T.; Hadincová, Věroslava; Krahulec, František; Pecháčková, Sylvie; Skálová, Hana; Suzuki, J. I.

    2001-01-01

    Roč. 16, - (2001), s. 1-11 ISSN 0913-557x R&D Projects: GA ČR GA206/98/1533; GA ČR GA206/99/0889 Institutional research plan: CEZ:AV0Z6005908 Keywords : environmental heterogeneity * Festuca rubra * plasticity Subject RIV: EF - Botanics

  15. Managing succession in conifer plantations: converting young red pine (Pinus resinosa Ait.) plantations to native forest types by thinning and underplantiing

    Science.gov (United States)

    William C. Parker; Ken A. Elliott; Daniel C. Dey; Eric Boysen; Steven G. Newmaster

    2001-01-01

    The effects of thinning on growth and survival of white pine (Pinus strobus L.), white ash (Fraxinus americana L.), and red oak (Quercus rubra L.), and understory plant diversity were examined in a young red pine (Pinus resinosa Ait.) plantation. Five years after thinning, seedling diameter,...

  16. Edge-glued panels from Alaska hardwoods: retail manager perspectives

    Science.gov (United States)

    David Nicholls; Matthew Bumgardner; Valerie Barber

    2010-01-01

    In Alaska, red alder (Alnus rubra Bong.) and paper birch (Betula papyrifera Marsh.) are both lesser-known hardwoods grown, harvested, and manufactured into appearance products, with potential for increased utilization. The production of edgeglued panels from red alder and paper birch offers one expansion opportunity for wood...

  17. Polycythemia Vera

    Science.gov (United States)

    ... Polycythemia Vera Also known as What Is Polycythemia vera (POL-e-si-THEE-me-ah VAY-rah or VE- ... MY-e-lo-PATH-ik) polycythemia Myeloproliferative (MY-e-lo-pro-LIF-er-ah-tiv) disorder Osler disease Polycythemia rubra vera Polycythemia with chronic cyanosis (SI-ah-NO-sis) ...

  18. Interactions among soil biology, nutrition, and performance of actinorhizal plant species in the H.J. Andrews Experimental Forest of Oregon.

    Science.gov (United States)

    N.S. Rojas; D.A. Perry; C.Y. Li; L.M. Ganio

    2002-01-01

    The study examined the effect of Frankia, macronutrients, micronutrients, mycorrhizal fungi, and plant-growth-promoting fluorescent Pseudomonas sp. on total biomass, nodule weight, and nitrogen fixation of red aider (Alnus rubra) and snowbrush (Ceanothus velutinus) under greenhouse conditions. The soil...

  19. Mass loss and nutrient concentrations of buried wood as a function of organic matter removal, soil compaction, and vegetation control in a regenerating oak-pine forest

    Science.gov (United States)

    Felix Ponder; John M. Kabrick; Mary Beth Adams; Deborah S. Page-Dumroese; Marty F. Jurgensen

    2017-01-01

    Mass loss and nutrient concentrations of northern red oak (Quercus rubra) and white oak (Q. alba) wood stakes were measured 30 months after their burial in the upper 10 cm of soil in a regenerating forest after harvesting and soil disturbance. Disturbance treatments were two levels of organic matter (OM) removal (only...

  20. Radiopharmaceuticals for therapy

    International Nuclear Information System (INIS)

    Lazarus, C.R.; Maisey, M.N.

    1985-01-01

    Several factors influencing the choice of radiopharmaceutical used in the treatment of benign and malignant disease are discussed. A brief review is given of the routine clinical uses of radiopharmaceuticals including treatments for hyperthyroidism, thyroid cancer, polycythaemia rubra vera and intracavitary therapy. Finally clinical situations using radionuclides under evaluation including the treatment of bone disease, adrenal tumours and monoclonal antibodies are discussed. (UK)

  1. Growth and development of red alder compared with conifers in 30-year-old stands.

    Science.gov (United States)

    Carl M. Berntsen

    1961-01-01

    Red alder (Alnus rubra), although a widespread tree species in Pacific coast forests, has only in recent years attained commercial importance as a source of wood material for diversified products including furniture, paneling, and paper pulp. With the rapid increase in the harvest of red alder, both public agencies and private industry are making a...

  2. Small-scale shifting mosaics of two dominant grassland species: the possible role of soil-borne pathogens

    NARCIS (Netherlands)

    Olff, H.; Hoorens, B.; De Goede, R.G.M.; Van der Putten, W.H.; Gleichman, J.M.

    2000-01-01

    We analyzed the dynamics of dominant plant species in a grazed grassland over 17 years, and investigated whether local shifts in these dominant species, leading to vegetation mosaics, could be attributed to interactions between plants and soil-borne pathogens. We found that Festuca rubra and Carer

  3. Small-scale shifting mosaics of two dominant grassland species : the possible role of soil-borne pathogens

    NARCIS (Netherlands)

    Olff, H.; Hoorens, B.; Goede, R.G.M. de; Putten, W.H. van der; Gleichman, J.M.

    2000-01-01

    We analyzed the dynamics of dominant plant species in a grazed grassland over 17 years, and investigated whether local shifts in these dominant species, leading to vegetation mosaics, could be attributed to interactions between plants and soil-borne pathogens. We found that Festuca rubra and Carex

  4. Red alder: A bibliography with abstracts

    Science.gov (United States)

    Charles F. Heebner; Mary Jane Bergener

    1983-01-01

    This bibliography lists 661 references to world literature through Hay 1978 containing information about red alder (Alnus rubra Bong.). Included are publications about its taxonomy, biology and silvics, chemical and physical information about its wood and fiber, studies on its nitrogen fixing properties, and reports on industrial uses and economic...

  5. Effects of ice storm damage on hardwood survival and growth in Ohio

    Science.gov (United States)

    Richard M. Turcotte; Thomas R. Elliott; Mary Ann Fajvan; Yong-Lak Park; Daniel A. Snider; Patrick C. Tobin

    2012-01-01

    In 2003, an ice storm occurred across four Mid-Atlantic states. This study investigated the effects of the ice-storm damage on growth and mortality of five tree species (Acer rubrum, Acer saccharum, Quercus alba, Quercus prinus, and Quercus rubra) from three forest stands in the Wayne National Forest in Ohio. We remeasured the same...

  6. Preliminary Guide to the Onsite Identification and Delineation of the Wetlands of the South Atlantic United States.

    Science.gov (United States)

    1982-05-01

    shield) Ceratophyilum demersum (Coontail) Myriophyllum spp. (Watermilfoil) Nelumbo lutea ( American lotus) Nuphar luteum (Spatterdock) Nymphaea odorata...Overcup oak) Quercus palustris (Pin oak) Quercus phelios (Willow oak) Ulmus americana ( American elm) UlmuS rubra (Slippery elm) c. Atlantic White...var. biflora (Swamp black gum) Persea borbonia (Red bay) Pinus serotina (Pond pine) Smilax laurifolia (Bamboo vine) Sphagnum spp. (Sphagnum moss

  7. Elemental concentrations in foliage of red maple, red oak, and white oak in relation to atmospheric deposition in Pennsylvania

    Science.gov (United States)

    D. D. Davis; J. M. Skelly; B. L. Nash

    1995-01-01

    Foliage was sampled in June and late August-early September in 1988 and 1989 from the outer crowns of codominant red maple (Acer rubrum L.), northern red oak (Quercus rubra L.), and white oak (Q. alba L.) trees in forest stands along an atmospheric deposition gradient in north-central Pennsylvania. Leaf samples...

  8. Effects of riparian canopy opening and salmon carcass addition on the abundance and growth of resident salmonids

    Science.gov (United States)

    Margaret A. Wilzbach; Bret C. Harvey; Jason L. White; Rodney J. Nakamoto

    2005-01-01

    We studied the concurrent effects of riparian canopy opening and salmon carcass addition on salmonid biomass, density and growth rates in small streams over 2 years. In each of six streams in the Smith and Klamath River basins in northern California, red alder (Alnus rubra) and other hardwoods were removed along both banks of a 100-m reach to...

  9. Not only the butterflies: managing ants on road verges to benefit Phengaris (Maculinea) butterflies

    NARCIS (Netherlands)

    Wynhoff, I.; Gestel, van R.; Swaay, van C.; Langevelde, van F.

    2011-01-01

    Obligate myrmecophilic butterfly species, such as Phengaris (Maculinea) teleius and P. nausithous, have narrow habitat requirements. Living as a caterpillar in the nests of the ant species Myrmica scabrinodis and M. rubra, respectively, they can only survive on sites with both host ants and the host

  10. The effect of environmental heterogeneity on clonal behaviour of Prunella vulgaris L

    Czech Academy of Sciences Publication Activity Database

    Macek, P.; Lepš, Jan

    2003-01-01

    Roč. 168, - (2003), s. 31-43 ISSN 1385-0237 R&D Projects: GA ČR GA206/99/0889; GA ČR GA206/02/0953 Institutional research plan: CEZ:AV0Z5007907 Keywords : Oligotrophic wet meadow * Festuca-rubra clones Subject RIV: EF - Botanics Impact factor: 1.000, year: 2003

  11. Lower Mississippi River Environmental Program. Report 2. A Physical Description of Main Stem Levee Borrow Pits along the Lower Mississippi River

    Science.gov (United States)

    1988-02-01

    Eastern cottonwood, green ash, sugarberry. box elder, bald cypress, willow honey locust, slippery elm , overcup oak and bitter pecan. Principle...vines and understory. Woody vegetation surrounds the borrow pit and consists of American and slippery elms , silver maple, black willow, cottonwood, pin...aquatica Water elm Ulmus rubra Slippery elm Urtica dioica Stinging nettle Vaccinium sp. Blueberry Vaccinium spp. Vaccinum Vernonia altissima Ironweed

  12. Environmental Assessment for Tinker Aerospace Complex Tinker Air Force Base, Oklahoma

    Science.gov (United States)

    2008-05-01

    Boutelova curtipendula silver bluestem Andropogon saccharoides slippery elm Ulmus rubra sugarberry Celtis laevigata switchgrass...areas; Crutcho Creek, Elm Creek, and Hog Creek. The Crutcho Creek drainage area consists of two additional water bodies, Kulhman Creek and Solider...Crutcho Creek flows to the north and discharges into the North Canadian River; the North Canadian River then discharges into the Arkansas River. Elm

  13. Environmental Assessment for Physical Fitness Center Tinker Air Force Base, Oklahoma

    Science.gov (United States)

    2010-04-01

    Tinker AFB contains such species as American elm (Ulmus Americana), slippery elm (Ulmus rubra), hackberry (Celtis spp.), and cottonwood (Poplus...The other two major drainages on the Base are Elm Creek and Hog Creek, both of which flow south off Base and join the Little River. The on-Base

  14. Environmental Assessment for the AFIT Master Plan, Wright-Patterson Air Force Base, Ohio, 88th Air Base Wing

    Science.gov (United States)

    2011-05-20

    Creek during a base-wide mist net survey (BHE 2001). Radio tracking of these two bats confirmed the presence of a maternity colony in a dead slippery ... elm (Ulmus rubra) in a woodlot on the campus of Wright State University. No sightings of Indiana bats have been reported within the area of the

  15. Environmental Assessment for BRAC Facilities and Remote Field Training Site, Wright-Patterson Air Force Base

    Science.gov (United States)

    2008-03-01

    survey (BHE, 2001). Radio tracking of these two bats confirmed the presence of a maternity colony in a dead slippery elm (Ulmus rubra) in a woodlot...The most common trees observed were black walnut (Juglans nigra), elm (Ulmus spp.), eastern cottonwood, willow, ash (Fraxinus americana), sycamore

  16. Elm genetic diversity and hybridization in the presence of Dutch elm disease

    Science.gov (United States)

    Dutch elm disease (DED) has devastated native North American elm species for more than 75 years. The impact of DED on the genetic diversity of one native elm species, U. rubra or slippery elm, is summarized and its potential impact on the genetic diversity of the other four North American native elm...

  17. Validating the Operational Draft Regional Guidebook for the Functional Assessment of High-Gradient Ephemeral and Intermittent Headwater Streams in Western West Virginia and Eastern Kentucky

    Science.gov (United States)

    2014-04-01

    blackgum, wild black cherry (Prunus serotina), sweet cherry (Prunus avium), slippery elm (Ulmus rubra), sourwood (Oxydendrum arboreum), red maple, and...virginiana), American hornbeam (Carpinus caroliniana), and slippery elm . Buffalo nut (Pyrularia pubera), wild hydrangea (Hydrangea arborescens...Pinus strobus), wild black cherry, boxelder (Acer negundo), sycamore, black locust (Robinia pseudo-acacia), slippery elm , and white ash. The shrub

  18. Elevated CO2 compensates for water stress in northern red oak

    Science.gov (United States)

    Patricia T. Tomlinson; Paul D. Anderson

    1996-01-01

    Global climate change models predict decreased rainfall in association with elevated CO2 in the western Lakes States region. Currently, the western edge of northern red oak (Quercus rubra L.) distribution coincides with the most xeric conditions of its ecological range. Decreased rainfall and water availability could alter...

  19. 杨梅叶水溶性提取物的抗氧化、抗菌活性 与防腐应用

    Czech Academy of Sciences Publication Activity Database

    Jun, Y.; Li-yun, Z.; Jun-qing, W.; Jie, Y.; Langhansová, Lenka; Vaněk, Tomáš; Yong-sheng, G.; Ji-dong, L.

    -, č. 2 (2014), s. 198-202 ISSN 1006-2513 R&D Projects: GA MŠk LH12165 Institutional support: RVO:61389030 Keywords : Myrica rubra leaf * antioxidation * antimicrobial Subject RIV: FR - Pharmacology ; Medidal Chemistry http://caod.oriprobe.com/articles/42399762/Antioxidant_antimicrobial_and_antisepsis_properties_of_the_water_solub.htm

  20. Comparative effects of urea fertilizer and red alder in a site III, coast Douglas-fir plantation in the Washington Cascade Range.

    Science.gov (United States)

    Richard E. Miller; Harry W. Anderson; Marshall Murray; Rick. Leon

    2005-01-01

    Five randomly assigned treatments were used to quantify effects of adding varying numbers of red alder (Alnus rubra Bong.) or nitrogen (N) fertilization on growth of a 10-year-old conifer plantation at a medium quality site in the western Washington Cascade Range. Zero, 20, 40, and 80 alder trees per acre were retained along with about 300 conifers...

  1. Red Oak Research and Demonstration Area in Phelps Township, North Bay, Ontario-2004 to 2005

    Science.gov (United States)

    Dave Deugo; Andrée Morneault; Dianne Othmer; Megan Smith; Al Stinson; Murray Woods; Ian Kovacs; Ian Aho; Bill Parker; Rob Baker; Marinus Verwey; Guylaine Thauvette; Don Willis; Jeff Dech

    2006-01-01

    In July 2004, a large stand of red oak (Quercus rubra) was harvested in Phelps Township, North Bay District, North Bay, Ontario using the uniform shelterwood system. Most of the stand was harvested to retain 40 percent crown closure, while a very small portion was harvested to retain 70 percent crown closure. During tree marking, an active Northern...

  2. Consumer preferences for kitchen cabinets made from red alder: a comparison to other hardwoods.

    Science.gov (United States)

    David L. Nicholls; Geoffrey H. Donovan; Joseph. Roos

    2004-01-01

    In Alaska, red alder (Alnus rubra Bong.) is an abundant but commercially underutilized species despite having properties suitable for higher value products, including furniture and cabinetry. However, it laces the name recognition of mote traditional hardwoods. Our research measured the effect of this lack of familiarity on consumer preferences...

  3. Managing young upland forests in southeast Alaska for wood products, wildlife, aquatic resources, and fishes: problem analysis and study plan.

    Science.gov (United States)

    Mark S. Wipfli; Robert L. Deal; Paul E. Hennon; Adelaide C. Johnson; Toni L. de Santo; Thomas A. Hanley; Mark E. Schultz; Mason D. Bryant; Richard T. Edwards; Ewa H. Orlikowska; Takashi Gomi

    2002-01-01

    Red alder (Alnus rubra Bong.) appears to influence the productivity of young-growth conifer forests and affect the major resources (timber, wildlife, and fisheries) of forested ecosystems in southeast Alaska. We propose an integrated approach to understanding how alder influences trophic links and processes in young-growth ecosystems. The presence...

  4. Evaluation of Methods for Physical Characterization of the Fine Particle Emissions from Two Residential Wood Combustion Appliances

    Science.gov (United States)

    The fine particulate matter (PM) emissions from a U. S. certified non-catalytic wood stove and a zero clearance fireplace burning Quercus rubra L. (northern red oak) and Pseudotsuga menziesii (Douglas fir) cordwood each at two different moisture levels were determined. Emission t...

  5. Establishment of northern red oak genetic tests with nursery-graded seedlings

    Science.gov (United States)

    S. A. Lay; M. A. Remaley; S. E. Schlarbaum; P. P. Kormanik; T. Tibbs; R. A. Cox; T. LaFarge; A. M. Saxton

    1997-01-01

    Artificial regeneration of northern red oak (Quercus rubra L.) has had variable success over time. Current nursery practices generally involve the growth of seedlings to a standardized height and form with little regard to seed source, seedling quality, or subsequent field performance. Additionally, there is not an accepted culling criteria for...

  6. The case of ichthyosis follicularis, alopecia and photophobia syndrome with retinal detachment

    Directory of Open Access Journals (Sweden)

    Bengü Nisa Akay

    2014-06-01

    Full Text Available Ichtiyosis follicularis, alopecia and photophobia (IFAP syndrome is a rare congenital ectodermal syndrome with X-linked inheritance. It occurs as a result of missense mutation in chromosome Xp22.11-Xp22.13 locus of MBTPS2 gene. It usually affects men and family history is always negative. Ichtiyosis follicularis and alopecia starts with birth. Photophobia and eye symptoms begin in early infancy or childhood. Other manifestations of the syndrome include short stature, mental retardation and seizures. There are no spesific histopathological findings specific for ichtyosis follicularis. A 29 years old male patient was admitted to outpatient clinic. Dermatological examination revealed keratosis pilaris localized to scalp, extremities and anterolateral of the body. Patient had xerosis, diffuse alopecia and prominent folicular appereance. Eye examination revealed cataracts and vision loss. These findings led us to IFAP syndrome diagnosis. The patient is presented for the rarity of the syndrome in the literature.

  7. Overlap Between Ulerythema Ophryogenes and Keratosis Follicularis Spinulosa Decalvans: a Case Report

    Directory of Open Access Journals (Sweden)

    Stojanović Slobodan

    2015-09-01

    Full Text Available Ulerythema ophryogenes and keratosis follicularis spinulosa decalvans are rare folliculocentric keratotic disorders, from the group of follicular genokeratoses, characterized by keratosis pilaris atrophicans: follicular keratotic papules, sometimes with surrounding erythema, which eventually result in fibrosis, atrophy, progressive scarring and permanent hair loss. Ulerythema ophryogenes begins at birth or soon thereafter; it involves the lateral eyebrows, spreads medially and eventually affects the entire eyebrows, cheeks, and less frequently, forehead and asjecebt scalp. Involvement of the scalp has apparently not been reported in cases in which the eyebrows were predominantly involved. In addition to sporadic cases, ulerythema ophryogenes has been reported among relatives. Keratosis follicularis spinulosa decalvans is also a genetically heterogeneous syndrome which begins in infancy or childhood by involving hair bearing skin, especially the scalp; rarely it is confined to the face involving only eyebrows and eyelashes, but affects predominantly the scalp, leading to severe progressive cicatricial alopecia. Both conditions tend to progress until puberty.

  8. Ulerythema ophryogenes, a rarely reported cutaneous manifestation of noonan syndrome: case report and review of the literature.

    Science.gov (United States)

    Li, Kayi; Ann Thomas, Mary; Haber, Richard M

    2013-01-01

    Ulerythema ophryogenes (also known as keratosis pilaris atrophicans faciei) is a rarely reported cutaneous manifestation of Noonan syndrome. Recognizing ulerythema ophryogenes as a cutaneous association in Noonan syndrome may aid in the diagnosis of this relatively common genetic condition. We present a case of a patient with Noonan syndrome and ulerythema ophryogenes associated with a SOS1 mutation and review the literature on this association. To the best of our knowledge, this is the second case of Noonan syndrome proven to be due to an SOS1 mutation in which ulerythema ophryogenes was clinically recognized and specifically diagnosed. The presence of ulerythema ophryogenes in a patient with Noonan syndrome increases the likelihood of a SOS1 mutation. Further reports by dermatologists and medical geneticists documenting ulerythema ophryogenes and not just descriptions of sparse or absent eyebrows will help support this genotype-phenotype correlation.

  9. The first case of isolation of malassezia globosa in our country

    Directory of Open Access Journals (Sweden)

    Arsić-Arsenijević Valentina S.

    2003-01-01

    Full Text Available Today is known that genus Malassezia includes seven species: M. furfur, M. sympodialis, M. obtusa, M. globosa, M. restricta, M. slooffiae and M. pachydermatis, but role of each of the species in the pathogenesis of desease has not been eluciated yet, so futher laboratory isolation and identification are necessary. We report the first case of isolation of Malassezia globosa in Serbia (Belgrade, in a patient suffering from Pityriasis versicolor. Identification of M. globosa was based on macroscopic, microscopic and biochemical characteristics. Isolation was done on Leeming and Notman medium and on mDixona agar, at 350C, during 7 days in aerobic conditions. Also the yeast's biochemical phenotype was determined as catalase (+, lipase (+, esculin degradation (-, Tween (20,40, 60 and 80 asimilation (-. M. globosa is a lipophilic yeast of the genus Malassezia and the common member of the skin flora. In concordance with some predis-poning factors M. globosa is implicated in the pathogenesis of several skin diseases (pityriasis versicolor, malassezia foliculitis sebor-rheic dermatitis and some forms of atopic dermatitis. In immuno-compromised patients and neonates this yeast can even cause fatal systemic infections. Because the role of Malassezia spp. in pathogenesis of skin desease is not still determined, we suggest laboratory diagnosis and identification of these species as a routine diagnostic procedure.

  10. Epidermodisplasia verruciforme: apresentação clínica com variadas formas de lesões Epidermodysplasia verruciformis: clinical presentation with varied forms of lesions

    Directory of Open Access Journals (Sweden)

    Naiana Bittencourt de Sá

    2011-08-01

    Full Text Available Epidermodisplasia verruciforme é uma genodermatose rara caracterizada por infecção disseminada por HPV, de caráter recessivo, com casos ligados ao cromossoma X. É caracterizada clinicamente por lesões maculares hipo ou hiperpigmentadas, lesões pitiríase versicolor like, verrugas planas e desenvolvimento precoce de carcinomas cutâneos. Descreve-se um caso de paciente com quadro clínico exuberante, apresentando todas as formas de lesões desta doença, inclusive presença de carcinoma espinocelular agressivo na faceEpidermodysplasia verruciformis is a rare inherited skin disorder spread by HPV, with cases linked to chromosome X. It is characterized by hypo- or hyper-pigmented macular lesions, pityriasis versicolor-like lesions and an early tendency to develop skin malignancies. We present a case of epidermodysplasia verruciformis with a variety of lesions such as multiple plane warts, pityriasis versicolor-like lesions and aggressive squamous cell carcinoma on the face

  11. Appalachian hardwood stump sprouts are potential sawlog crop trees. Research note NE-299. [Oak, maple, linden, cherry trees

    Energy Technology Data Exchange (ETDEWEB)

    Lanson, N.I.

    1976-01-01

    Dbh and height of 8- and 12-year-old coppice shoots and the number of live shoots were recorded for 736 stumps at least 12 inches in diameter of Liriodendron tulipifera, Prunus serotina, Quercus rubra, Acer rubrum, and Tilia americana in north-central West Virgina. Of the 8-year-old shoots, T. americana had the greatest number of live stems/stump (16.8) and the greatest number of potential crop trees (dominant or co-dominant shoots attached to the stump not more than 6 inches above the ground), averaging 2.5 stems/stump. The average numbers of potential crop trees/stump were similar at 8 and 12 year. At 12 years, at least 88% of stumps of each species had at least one stem of groundline origin with no forks below 25 feet were 84% for L. tulipifera, 59% for Q rubra, 73% for A. rubrum, and 65% for P. Serotina.

  12. Antimicrobial Activity Investigation on Wuyiencin Fractions of Different Polarity

    Directory of Open Access Journals (Sweden)

    Zengjie Cui

    2010-04-01

    Full Text Available The aim of this study was to evaluate the antimicrobial activity of Wuyiencin fractions with different polarities against six indicator microorganisms: Rhodotorula rubra, Bacillus subtilis, Bacillus megaterium, Escherichia coli, Cladosporium fulvum and Staphylococcus aureus. The fermentation broth of Wuyiencin was submitted to AB-8 macroporous adsorptive resin and fractionated with solvents of different polarity. The fraction eluted with water had remarkably antimicrobial activity against all the microorganisms investigated except for C. fulvum and S. aureus (MIC ≤ 0.0625 mg/mL, probably due to the presence of active components. The fraction eluted with methanol showed potential antimicrobial activity against all the test microorganisms except for R.rubra, with MIC values of0.5 and 2 mg/mL. In conclusion, fractions eluted with water and methanol, respectively, represent the main active-part of Wuyiencin, and could be emphasized for agricultural applications in the future.

  13. Effect of activated sludge culture conditions on Waxberry wastewater

    Science.gov (United States)

    Shi, Liang; He, Lingfeng; Zhang, Yongli

    2018-03-01

    Treated activated sludge is suitable for the treatment of wastewater. Biochemical method is used to treat the wastewater, and the influence of time on the COD index is investigated. The results showed that time had a significant effect on COD, and then affected the performance of activated sludge. Under different time, according to the order of time from short to long, COD decreases in turn. Under the action of activated sludge, the degradation of myrica rubra wastewater samples, after 25 h aeration for 96 h, the effect is better. Under this condition, the COD value was reduced at 72 mg/L, and the COD removal efficiency of myrica rubra wastewater was up to 93.39 %, and reached the two level discharge standard of municipal wastewater treatment.

  14. Acorn fall and weeviling in a northern red oak seedling orchard

    Science.gov (United States)

    Daniel R. Miller; Scott E. Schlarbaum

    2005-01-01

    In 2000, we determined levels of damage by acorn weevils (Curculio spp.) and patterns of acorn fall in a northern red oak (Quercus rubra L.) seedling orchard in eastern Tennessee. The mean (±SE) production of acorns among 43 selected trees was 5,930 ± 586 acorns per tree with a maximum production level of 16,969 acorns for one tree...

  15. Effect of nitrogen fertilization, grass species and cultivar on sod production on Valkeasuo peat bog - a case study

    Directory of Open Access Journals (Sweden)

    Perttu Virkajärvi

    1997-09-01

    Full Text Available As part of a research project concerning the agricultural utilization of cut-away peat bogs, a sod production experiment was conducted at Valkeasuo, Tohmajärvi, in 1990-1993. The aim of the experiment was to study the effect of nitrogen and choice of cultivar on sod production and sod quality on peat bogs. The N fertilization rates were 50, 100 and 150kg ha-1. The Poa pratensis cultivars were ‘Conni’, ‘Cynthia’, ‘Haga’ and ‘Julia’, the Festuca rubra cultivars were ‘Center’, ‘Juliska’, ‘Koket’ and ‘Näpsä’ and the Agrostis capillaris cultivar was ‘Rasti’. Two mixtures of P. pratensis/F. rubra and one of A. capillaris/F. rubra imitated commercial sod products. Increasing of N fertilization from 50 kg up to 150 kg ha-1 a had positive effect on general the quality of sod as well as on the green cover before and after transplanting. It increased the thatch formation. The positive effect of N on the number of tillers and green cover in the year following transplanting was dependent on the species and the cultivar. Species and cultivar affected all measured variables excluding thatch formation. Generally, the P. pratensis cultivars tested suited better for sod production than cultivars of F. rubra, but there were clear differences between cultivars within species as well. Although the soil was infertile, the contents of Ca, K, Mg, P, Cu, Fe, Mn, Mo and Zn in the herbage samples were within normal range. The botanical purity was high, which supports the hypothesis that the absence of seed bank of weeds on peat bogs immediately after harvesting the peat can be utilized.

  16. Comparison of PCR-RFLP pattern with sequencing analysis of the ITS region of Hyrcanain\\'s Tilia

    Directory of Open Access Journals (Sweden)

    Hamed Yousefzadeh

    2014-01-01

    T. hyrcana and T. rubra from Hyrcanian's origin, but it could not separate T. begonifloia from the other hyrcanian species. In this respect, derived results were similar to sequencing one. In conclusion, with regard to less expensive and less time consuming PCR-RFLP technique and high similarity between its result with sequencing, we recommend this method as a simple and economical method with relatively high efficiency studding plant phylogeny.

  17. Operation and Maintenance Pools 24, 25, and 26 Mississippi and Illinois Rivers.

    Science.gov (United States)

    1975-09-01

    eight species, plus eight additional taxa identi- fied to genus only, were collected from these seven sites. Only eight species occurred at three or...occidentalis) 2 3 Shagbark hickory (Carya ovata) 2 2 Northern red oak (Quercus rubra) 2 0 Persimmon ( Diospyros virginiana) 1 3 River birch (Betula nigra) 1 2...turtles, red-eared turtles, and map turtles were commonly observed in wetland areas. Four species of water snakes ( Genus Natrix) frequently utilized

  18. An Inventory of the Vascular Flora of Fort Greely, Interior Alaska

    Science.gov (United States)

    2001-02-01

    Alnus tenuifolia Nutt. [= Alnus incana (L.) Moench ssp. tenuifolia (Nutt.) Breitung] Alnus viridis Vill. ssp. crispa (Ait.) A. Love & D. Love...Festuca rubra L., in part] Festuca saximontana Rydb. *Festuca vivipara (L.) Smith [= “Festuca vivipara”] Fragaria virginiana Duchesne ssp. glauca...tenuifolia (Nutt.) Breitung] Alnus viridis Vill. ssp. crispa (Ait.) A. Love & D. Love [= Alnus crispa (Ait.) Pursh ssp. crispa] Betula glandulosa Michx. Betula

  19. The Variable Effect of Polyploidization on the Phenotype in Escallonia.

    Science.gov (United States)

    Denaeghel, Hanne E R; Van Laere, Katrijn; Leus, Leen; Lootens, Peter; Van Huylenbroeck, Johan; Van Labeke, Marie-Christine

    2018-01-01

    To induce new variation within the Escallonia genus, chromosome doubling was performed in E. rubra, E. rosea , and E. illinita , three important species within this genus of mainly evergreen woody ornamental species. Obtained tetraploids and diploid controls were analyzed for rooting capacity, leaf and flower characteristics, and plant architecture using image analysis and cold tolerance. In the present study, a breeders' collection of 23 accessions was characterized cytogenetically and described morphologically. All analyzed species and cultivars were diploid (2n = 2x = 24), with exception of E. pendula , a tetraploid. Today, breeding in Escallonia is limited to lucky finds in seedling populations and few efforts in interspecific hybridization. Three selected Escallonia species underwent an in vitro chromosome doubling with both oryzalin and trifluralin applied as either a continuous or shock treatment. The treatments successfully induced polyploids in all three species. Image analysis revealed that tetraploid E. rosea had decreased shoot length (from 3.8 to 1.3 cm), higher circularity and more dense growth habit compared to diploids. No significant changes in cold tolerance were seen. Tetraploid E. illinita did not differ in shoot length, but an increased outgrowth of axillary buds on the main axis led to denser plants. For tetraploid E. rubra , an increase in plant height (from 4.9 to 5.5 cm) was observed together with a large decrease in circularity and density due to a more polar outgrowth of branches on the main axis. E. rubra tetraploids bore larger flowers than diploids and had an increased cold tolerance (from -7.7 to -11.8°C). Leaf width and area of tetraploids increased for both E. illinita and E. rubra , while a decrease was seen in E. rosea genotypes. For all three species, the rooting capacity of the tetraploids did not differ from the diploids. We conclude that the effect of polyploidization on Escallonia was highly variable and species dependent.

  20. New records for the shallow-water chiton fauna (Mollusca, Polyplacophora of the Azores (NE Atlantic

    Directory of Open Access Journals (Sweden)

    Sérgio Ávila

    2013-06-01

    Full Text Available Published records, original data from recent field work on all of the islands of the Azores (NE Atlantic, and a revision of the entire mollusc collection deposited in the Department of Biology of the University of the Azores (DBUA were used to compile a checklist of the shallow-water Polyplacophora of the Azores. Lepidochitona cf. canariensis and Tonicella rubra are reported for the first time for this archipelago, increasing the recorded Azorean fauna to seven species.

  1. Cultural Resources Survey and Testing Along Ditch 19 and Extensive Testing of 23DU289, Dunklin and Stoddard Counties, Missouri.

    Science.gov (United States)

    1988-06-30

    Carya illinoensis ) 1 1 Persimmon (Diospyros virginiana) T 2 2 Pl.um (Prunus sp.) T Red Haw (Crataegus sp.) T 1 11 Red Mulberry (Morus rubra) T...2 Cherry (Prunus sp.) T Cottonwood (Populus sp.) 1 3 Dogwood (Cornus sp.) 1 Hackberry (Celtus occidentalis) 12 9 Hickory, ( Carya sp.) 5 4 Shellhark... Carya laciniosa) T Hornbeam (Ostrya virginiana) 2 Kentucky Coffee Tree( Gymnoeladus dioica)T Locust, T Black (Robinia pseudo-acacia) T Honey

  2. Transgenerational plasticity as an important mechanism affecting response of clonal species to changing climate

    OpenAIRE

    M?nzbergov?, Zuzana; Hadincov?, V?roslava

    2017-01-01

    Abstract In spite of the increasing number of studies on the importance of transgenerational plasticity for species response to novel environments, its effects on species ability to respond to climate change are still largely unexplored. We study the importance of transgenerational plasticity for response of a clonal species Festuca rubra. Individuals from four natural populations representing two levels of temperature and two levels of precipitation were cultivated in four growth chambers th...

  3. Taxonomy and Traditional Medicinal Uses of Apocynaceae (Dogbane) Family of Rajshahi District, Bangladesh

    OpenAIRE

    Mahbubur Rahman AHM; Mahfuza Akter

    2015-01-01

    Taxonomy and traditional medicinal uses on the family Apocynaceae growing throughout the Rajshahi district has been made. A total of 14 species under 12 genera belonging to the family Apocynaceae were collected and identified. Out of the total number of species Allamanda cathartica Linn, Alstonia scholaris (L.) R.Br. Carissa carandas Linn, Catharanthus roseus (L.) G. Don, Ichnocarpus frutescens (L.) R. Br., Nerium oleander Linn., Plumeria alba Linn., Plumeria rubra Linn., Rauvolfia serpentina...

  4. Comparative analysis of species-based specificity in Sr 90 and Cs 137 accumulation demonstrated by ligneous plant forest communities

    International Nuclear Information System (INIS)

    Martinovich, B.S.; Vlasov, V.K.; Sak, M.M.; Golushko, R.M.; Afmogenov, A.M.; Kirykhin, O.V.

    2004-01-01

    The authors provided field-proven study of Sr 90 and Cs 137 absorption activity demonstrated by Pinus silvestris L.; Piceae abies (L.) Roth.; Quercus rubra L.; Acer platanoides L.; Betula pendula Roth.; Tilia cordata Mill, under identical habitat conditions. The above plants were examined after 5-year growth period on radionuclide-contaminated soil. To a great extent, such parameters as radionuclide accumulation in experimental plants and accumulation activity were determined by the plants' bio-ecological properties. (Authors)

  5. Environmental Assessment Addressing the Expansion of Sortie-Operations at Moody Air Force Base, Georgia

    Science.gov (United States)

    2012-08-01

    regulations, the Migratory Bird Treaty Act makes it unlawful to (or attempt to) pursue, hunt, take, capture, or kill any migratory bird, nest, or egg...of bald or golden eagles in the United States. The Act defines “take” as “pursue, shoot, shoot at, poison, wound, kill , capture, trap, collect... mockingbird (Mimus polyglottus), eastern bluebird (Sialia sialis), pine warbler (Dendroica pinus), and summer tanager (Piranga rubra). There are

  6. Oxidative cyclization of prodigiosin by an alkylglycerol monooxygenase-like enzyme

    DEFF Research Database (Denmark)

    de Rond, Tristan; Stow, Parker; Eigl, Ian

    2017-01-01

    Prodiginines, which are tripyrrole alkaloids displaying a wide array of bioactivities, occur as linear and cyclic congeners. Identification of an unclustered biosynthetic gene led to the discovery of the enzyme responsible for catalyzing the regiospecific C–H activation and cyclization of prodigi...... of prodigiosin to cycloprodigiosin in Pseudoalteromonas rubra. This enzyme is related to alkylglycerol monooxygenase and unrelated to RedG, the Rieske oxygenase that produces cyclized prodiginines in Streptomyces, implying convergent evolution....

  7. Recreational Appendix Report, Elm Fork Flood Control Project, Dallas and Denton Counties, Texas.

    Science.gov (United States)

    1973-05-01

    Juniperus virginiana 2. Willow Salix nigra 3. Cottonwood Populus deltoides 4. Black Walnut Juglans migra 5. Pecan Carya illinoensis 6. Bur Oak...Maclura pomifera 12. Red Mulberry Morus rubra 13. Sycamore Platanus occidentailis 14. Red Haw Crataegus, sps. 15. Wild Plum Prunus mexicana 16. Mesquite...also provides a habitat for a number of mammals including: 1. Opossum Didelphis virginiana 2. Shrews Blarina brevicuada and Cryptotis parva 3. Raccoon

  8. Study of pathophysiology of pulmonary circulation in polycythemia using scintigraphy

    Energy Technology Data Exchange (ETDEWEB)

    Fujii, Tadashige; Tanaka, Masao; Takeda, Tadashi; Kawashima, Akira; Kubo, Keiji; Kobayashi, Toshio; Handa, Kenjiro; Yoshimura, Kazuhiko (Shinshu Univ., Matsumoto, Nagano (Japan). Faculty of Medicine)

    1993-09-01

    In order to evaluate the pathophysiology of pulmonary circulation in polycythemia, Tl-201 myocardial scintigraphy and perfusion lung scintigraphy with 99m-Tc-MAA were performed in 19 cases of polycythemia including polycythemia rubra vera and in 11 cases of secondary polycythemia due to pulmonary diseases. Tl-201 lung uptake, right ventricular visualization and pulmonary perfusion impairment were studied. In the 19 cases, Tl-201 lung uptake was observed in all cases and 54.5% of them showed moderate lung uptake. The grade of right ventricular visualization was moderate in one case and slight in 16 cases; right ventricular hypertrophy was shown in 89.5% of all cases by Tl-201 scintigraphy, only one of which showed right ventricular hypertrophy on electrocardiography. Abnormalities of lung perfusion consisted of scattered small areas of hypoperfusion in 36.8%, peripheral hypoperfusion in 78.9% and uneven distribution of pulmonary perfusion in 94.7%. The degree of hypoperfusion was slightly related to decrease in FEV 1.0%, V25 and PaO[sub 2] and increase in circulating blood volume and peripheral red blood cell counts. Abnormalities of pulmonary function consisted of increased RV/TLC in 50.0%, increased CV/VC in 35.7% and decreased V25 in 36.8%. Arterial blood gases showed hypoxemia in 57.1%, the degree of which was slightly related to increase in RV/TLC and CV/VC and decrease in V25. Cases of secondary polycythemia due to pulmonary diseases showed more marked right ventricular visualization, pulmonary perfusion impairment and abnormalities of various kinds of pulmonary function than polycythemia rubra vera cases. It seems to be important to evaluate the pathophysiology of pulmonary circulation in polycythemia rubra vera as well as secondary polycythemia due to cardio-pulmonary diseases, because pulmonary perfusion impairment and moderate right ventricular visualization are observed frequently in polycythemia rubra vera. (author).

  9. Study of pathophysiology of pulmonary circulation in polycythemia using scintigraphy

    International Nuclear Information System (INIS)

    Fujii, Tadashige; Tanaka, Masao; Takeda, Tadashi; Kawashima, Akira; Kubo, Keiji; Kobayashi, Toshio; Handa, Kenjiro; Yoshimura, Kazuhiko

    1993-01-01

    In order to evaluate the pathophysiology of pulmonary circulation in polycythemia, Tl-201 myocardial scintigraphy and perfusion lung scintigraphy with 99m-Tc-MAA were performed in 19 cases of polycythemia including polycythemia rubra vera and in 11 cases of secondary polycythemia due to pulmonary diseases. Tl-201 lung uptake, right ventricular visualization and pulmonary perfusion impairment were studied. In the 19 cases, Tl-201 lung uptake was observed in all cases and 54.5% of them showed moderate lung uptake. The grade of right ventricular visualization was moderate in one case and slight in 16 cases; right ventricular hypertrophy was shown in 89.5% of all cases by Tl-201 scintigraphy, only one of which showed right ventricular hypertrophy on electrocardiography. Abnormalities of lung perfusion consisted of scattered small areas of hypoperfusion in 36.8%, peripheral hypoperfusion in 78.9% and uneven distribution of pulmonary perfusion in 94.7%. The degree of hypoperfusion was slightly related to decrease in FEV 1.0%, V25 and PaO 2 and increase in circulating blood volume and peripheral red blood cell counts. Abnormalities of pulmonary function consisted of increased RV/TLC in 50.0%, increased CV/VC in 35.7% and decreased V25 in 36.8%. Arterial blood gases showed hypoxemia in 57.1%, the degree of which was slightly related to increase in RV/TLC and CV/VC and decrease in V25. Cases of secondary polycythemia due to pulmonary diseases showed more marked right ventricular visualization, pulmonary perfusion impairment and abnormalities of various kinds of pulmonary function than polycythemia rubra vera cases. It seems to be important to evaluate the pathophysiology of pulmonary circulation in polycythemia rubra vera as well as secondary polycythemia due to cardio-pulmonary diseases, because pulmonary perfusion impairment and moderate right ventricular visualization are observed frequently in polycythemia rubra vera. (author)

  10. Chemical defence in chrysomelid eggs and neonate larvae

    OpenAIRE

    Pasteels, Jacques M.; Daloze, D.; Rowell-Rahier, Martine

    2009-01-01

    Eggs and neonate larvae of chrysomelid beetles (sub-tribes Chrysomelina and Phyllodectina) were investigated for the presence of defensive substances. The two isoxazolinone glucosides (compounds 1 and 2), characteristic of the adult defence secretion, were detected in the eggs of all studied species. Compound 2, containing a nitropropionate, is always present in concentrations (above 10-2 M), which are highly deterrent to the ant Myrmica rubra. This compound is not at all or only slightly to...

  11. Regression analysis of γ-ray effect on sod activity and MDA content in four vegetable leaves

    International Nuclear Information System (INIS)

    Wang Zegang; Feng Min; Hu Jianwei; Gao Yue; Lv Haiyan; Luo Shishi; Zheng Haoxian; Ma Fei; Ge Cailin

    2005-01-01

    Dynamic effects of γ-ray on SOD, POD activities and MDA content in leaves of four vegetable varieties were studied. The results were quantitatively described by the method of curve fitting and establishing mathematical model. The parameters of the formula suggested that the four vegetable varieties' sensitivity to radiation appeared as following order: Basella rubra>Lactuca sativa>Lactuca sativa spp>Brassica Chinensis. (authors)

  12. An Environmental Assessment of the Fee Acquisition of Dare County Range, North Carolina

    Science.gov (United States)

    1974-10-15

    the understory are red bay ( Persea spp.), loblolly bay (Gordonia lasianthus), sweet bay (Magnolia virginica), red maple (Acer rubra), wax...South American rodents, are also reported to be in the area. [14] 3.2.2.2 Birds Table 3.2.2-A shows a list compiled by the Department of...34 and to "assure for all Americans ...aesthetically and culturally pleasing surroundings," and to "preserve important his- toric, cultural, and natural

  13. Planting northern red oak: a comparison of stock types

    Science.gov (United States)

    J.J. Zaczek; K.C. Steiner; T.W. Bowersox

    1991-01-01

    Height and survival values of northern red oak (Quercus rubra L.) were compared three years after outplanting as functions of: stock types (direct-seeded, 1-0, 2-0, 1-1, 2-1, and 2-year-old seedlings grown in 7.9-liter pots), presence or absence of undercutting in the nursery, and presence or absence of top-clipping when field planting. In all, 33 or...

  14. Harry S. Truman Dam and Reservoir, Missouri, Holocene Adaptations Within the Lower Pomme de Terre River Valley, Missouri. Volume 1.

    Science.gov (United States)

    1982-06-01

    Kucera and Martin 1957). The primary tree species in the seedling-sapling stage (Table 2.6) are white oak and slippery elm with some black oak, hackberry...i’lnius rubra ( slippery elm ) ."ilirz americana (basswood) * HERBS * Arbrosiu artersiifolia (ragweed) Antena*a neglecta (pussytoes) ,Im4nra sp. (sandwort...basswood, and American elm , and slightly higher, increasing amounts of hackberry, slippery elm , and white ash. The undergrowth of the bottomlands is pri

  15. Flood Tolerance in Plants: A State-of-the-Art Review

    Science.gov (United States)

    1979-08-01

    Q imbriraria Black walnut Juaus nigra Bitternut hickory Carya cordiformi. Red bud Cerc:i n e adensis Box el.der Accr n,ýgundo Slippery elm Jlmus rubra...Liriodendron tl__ipifera), sugar maple (Acer saccharum), white oak (Quercus alba), honey-locust (Gleditsia triacanthos), and Amterican elm (Ulmus americana...only American elm developed adventitious roots (YClcnouky 1964). 37. Accumulation of C02 . Next to lowered 0 concentration,:; the accumulation of toxic

  16. Environmental Assessment: Construction of Consolidated Fuel Overhaul and Repair Facility at Tinker Air Force Base, Oklahoma

    Science.gov (United States)

    2007-10-01

    site is forested and is dominated by slippery elm (Ulmus rubra), hackberry (Celtis occidentalis), and sugarberry (Celtis laevigata), and, to a lesser...Basin and into the North Canadian River, and the southern portion drains into the Elm Creek and Hog Creek Drainage Basins and into the South...County close to Tinker AFB, including Brock Creek, East Elm Creek, Crutcho Creek, West Hog Creek, East and West Forks of Wildhorse Creek, Bluff

  17. Aquilla Lake, Brazos River Basin, Texas, Pre-Impoundment Environmental Study: Supplement to Design Memorandum Number 9, Master Plan (in Response to: 40CFR 1505.3),

    Science.gov (United States)

    1983-06-01

    phaeacantha White Prairie Rose Rosa filiolosa Bur Oak Quercus macrocarpa Slippery Elm Ulrnus rubra Elbow-Bush Forestiera pubescens Southen Black-haw Virburnum...It LIST OF PLATES Plate Title Page 1 Above, a cedar elm woodland scene ( -5), herbaceous component consists primarily of Canada...3( 2 Above, view of a pecan parkland (T3-2), herbaceous and shrub components composed primarily of Smilax, June 1980. Below, a mesquite/cedar elm

  18. Ecological Investigation of a Greentree Reservoir in the Delta National Forest, Mississippi.

    Science.gov (United States)

    1981-09-01

    elm (Ulmus americana) and slippery elm (U. rubra) oc- curred in the study area, with American elm the more abundant species. No distinction was made...spectively, on both areas (see Appendix C for nomenclature). American elm * and water hickory ranked fifth and sixth in importance on the ref- erence area...between these two species; the label "American elm " includes data for both. 18 boundaries, water hickory increment cores were not analyzed. Table 4

  19. Jackson Mills and Mine Falls Dams, Nashua, New Hampshire. Reconnaissance Report, Hydroelectric Feasibility. Volume 1, Jackson Mills Dam.

    Science.gov (United States)

    1979-12-01

    Catalpa Solidago sp. Goldenrod Aster novae - angliae New England Aster Acer saccharum Sugar Maple Ulmus rubra Slippery elm Solanum hi rum Common...red pine, and hemlock are the common softwood species, and the common hardwood species include red maple, silver maple, white oak, willow, slippery ... elm and birch. In 1972, between 70 and 7S percent of the total area of the watershed consisted of forests and primarily wooded land. (Reference 3

  20. Archeology and Native American Religion at the Leon River Medicine Wheel.

    Science.gov (United States)

    1996-02-01

    varieties of plants. The eastern side of including pecan (Carya illinoinensis), slippery elm the facility (East Range) is typified by dense (Ulmus rubra...southern part of the Cross Timbers and Prairies texana), and cedar elm (Ulmus crassifolia). A Vegetation Area. Alired and Mitchell (1955) term variety of...south (West Fort americana), American elm (Ulmus americana), Hood) are generally more open, ranging from TRC MARIAH ASSOCIATES, INC. (662-21

  1. Cultural Resources Investigation of a Proposed Flood Control Project along the Sheyenne River, at West Fargo, Cass County, North Dakota. Phase I.

    Science.gov (United States)

    1988-01-15

    cottonwood (Po2ulus salrgenti), sumac (Ehus sp.), peach and sandbar willows (Salix amvdaloides; . terio), and slippery elm (Ulmus rubra). 3.4.2 Bluestem...forest of elm , oak, ash, hackberry, cottonwood, and aspen along the major streams. Archaeological evidence indicates that prehistoric people along the...black willow (Salix nifra), and American elm (Ulmus amicnan). Other components include: boxelder (Acer neaundo), red maple (A. Subrum), silver maple (A

  2. Endangered Species Management Plan for Fort Hood, Texas: FY06-10

    Science.gov (United States)

    2007-05-01

    Texas red oak, post oak, Texas ash (Fraxinus texensis), shin oak, blackjack oak (Quercus marilandica), slippery elm (Ulmus rubra), cedar elm ...by Ashe juniper and Texas oak. Other important tree species included live oak, cedar elm (Ulmus crassifolia), Lacey oak (Quercus laceyi), Arizona...0.83 m (Cimprich 2005). Nest substrates include shin oak, Texas red oak, Texas redbud, Ashe juniper, Texas ash, Plateau live oak, cedar elm , rusty

  3. Cultural Resources in the Southern Lake Erie Basin: A Predictive Study.

    Science.gov (United States)

    1981-01-01

    American elm , black ash, and silver maple; also associated were slippery elm , burr oak, swamp white oak, and bitternut hickory. Another type of swamp...American elm -red maple-black ash association dominated the wetter sites. Associated were slippery elm , burr oak, swamp white oak, and bitternut...americana Red elm ( slippery elm ) U. rubra Balsam fir Abies balsanea Hackberry Celtis occidentalis American hazel Corylus americana Eastern hemlock

  4. Flambeau Mining Corporation, Ladysmith, Rusk County, Wisconsin. Proposed Open Pit Copper Mine and Waste Containment Area, Draft Environmental Impact Statement.

    Science.gov (United States)

    1976-08-01

    American elm Lonicera tatarica - tartarian honeysuckle Ulmus rubra - slippery elm Siiibucus canadenis - common elder Ulmus thoiii~sii - cork elm ...community borders the marshes and swamps. 2.060 The predominant species are the trembling aspen (Populus tremuloides), red maple (Acer rubrum), the elms ...succession. The most numerous trees (in descending order) are: white birch, red maple, aspen, sugar maple, black ash, basswood, elm (Ulmus sp.), hemlock

  5. Buffalo Metropolitan Area, New York Water Resources Management. Interim Report on Feasibility of Flood Management in Cazenovia Creek Watershed.

    Science.gov (United States)

    1977-03-01

    Ulmus rubra slippery elm Ulmus thomasii rock elm Pinus strobus white pine Juglans cinerea. butternut Juglans nigra black walnut Carya ovata shagbark...West Seneca X : X : X Town of Elm : X X X Town of Aurora : X : Town of Boston X : Town of Colden : X : 5.i, Table 1 (cont’d) Flood Insurance Status for...grandidentata bigtooth aspen Populus deltoides eastern cottonwood Rhus typhina staghorn. sumc Betula alleghaniesis yellow birch Ulmus americana. American elm

  6. Terrestrial Biological Inventory Hartwell Drainage and Levee District Greene County, Illinois.

    Science.gov (United States)

    1982-01-01

    E. Herbicides, insecticides , and fertilizers used for agricultural purposes may have detrimental effects on wildlife and plants in the District and...Species in Four Bottomland Forest Sample Plots Percent Cover Species 1 2 3 4 Clearweed ə 10 ə ɝ Wood nettle -- 20 35 25 Buttercup -- ə 15 ɝ...Family) Red Mulberry Morus rubra Urticaceae ( Nettle Family) W’od nettle Laportea canadensis Clearweed Pilea pumila Polygonaceae (Buckwheat family) Dock

  7. Field evaluation of in situ remediation of a heavy metal contaminated soil using lime and red-mud

    International Nuclear Information System (INIS)

    Gray, C.W.; Dunham, S.J.; Dennis, P.G.; Zhao, F.J.; McGrath, S.P.

    2006-01-01

    We evaluated the effectiveness of lime and red mud (by-product of aluminium manufacturing) to reduce metal availability to Festuca rubra and to allow re-vegetation on a highly contaminated brown-field site. Application of both lime and red mud (at 3 or 5%) increased soil pH and decreased metal availability. Festuca rubra failed to establish in the control plots, but grew to a near complete vegetative cover on the amended plots. The most effective treatment in decreasing grass metal concentrations in the first year was 5% red mud, but by year two all amendments were equally effective. In an additional pot experiment, P application in combination with red mud or lime decreased the Pb concentration, but not total uptake of Pb in Festuca rubra compared to red mud alone. The results show that both red mud and lime can be used to remediate a heavily contaminated acid soil to allow re-vegetation. - Red mud was effective in immobilising heavy metals in soil

  8. Field evaluation of in situ remediation of a heavy metal contaminated soil using lime and red-mud

    Energy Technology Data Exchange (ETDEWEB)

    Gray, C.W. [Agriculture and the Environment Division, Rothamsted Research, Harpenden, Herts AL5 2JQ (United Kingdom); Dunham, S.J. [Agriculture and the Environment Division, Rothamsted Research, Harpenden, Herts AL5 2JQ (United Kingdom); Dennis, P.G. [Agriculture and the Environment Division, Rothamsted Research, Harpenden, Herts AL5 2JQ (United Kingdom); Zhao, F.J. [Agriculture and the Environment Division, Rothamsted Research, Harpenden, Herts AL5 2JQ (United Kingdom); McGrath, S.P. [Agriculture and the Environment Division, Rothamsted Research, Harpenden, Herts AL5 2JQ (United Kingdom)]. E-mail: steve.mcgrath@bbsrc.ac.uk

    2006-08-15

    We evaluated the effectiveness of lime and red mud (by-product of aluminium manufacturing) to reduce metal availability to Festuca rubra and to allow re-vegetation on a highly contaminated brown-field site. Application of both lime and red mud (at 3 or 5%) increased soil pH and decreased metal availability. Festuca rubra failed to establish in the control plots, but grew to a near complete vegetative cover on the amended plots. The most effective treatment in decreasing grass metal concentrations in the first year was 5% red mud, but by year two all amendments were equally effective. In an additional pot experiment, P application in combination with red mud or lime decreased the Pb concentration, but not total uptake of Pb in Festuca rubra compared to red mud alone. The results show that both red mud and lime can be used to remediate a heavily contaminated acid soil to allow re-vegetation. - Red mud was effective in immobilising heavy metals in soil.

  9. Volatile Constituents of Three Myrsine L. Species from Brazil

    Directory of Open Access Journals (Sweden)

    Arthur L. Corrêa

    2017-01-01

    Full Text Available The chemical compositions of the essential oils obtained by hydrodistillation from the aerial parts of Myrsine rubra, Myrsine gardneriana and Myrsine parvifolia and the fruits of Myrsine parvifolia were elucidated by a combination of GC and GC-MS analyses. The main constituents of the native M. parvifolia were caryophyllene oxide (14.4%, β-caryophyllene (12.6% and γ-Muurolene (7.9% of the leaves oil and β-caryophyllene (11.7%, δ-Cadinene (7.1% of the fruit oil. The volatile oil of the endemic M. rubra leaves was dominated by β-caryophyllene (17.2%, γ-Muurolene (11.1%, Germacrene B (10.0%. The essential oil of the native M. gardneriana leaves was characterized by β-caryophyllene (18.0%, γ-Muurolene (8.4%. These three Myrsine species are similar in the dominance of sesquiterpenes. By contrast, monoterpenes were found only in the volatile oil from the fruits of M. parvifolia. To the best of our knowledge, this study is the first report on the volatile constituents of M. rubra, M. gardneriana, M. parvifolia.

  10. A Rapid and Efficient Screening Method for Antibacterial Compound-Producing Bacteria.

    Science.gov (United States)

    Hettiarachchi, Sachithra; Lee, Su-Jin; Lee, Youngdeuk; Kwon, Young-Kyung; De Zoysa, Mahanama; Moon, Song; Jo, Eunyoung; Kim, Taeho; Kang, Do-Hyung; Heo, Soo-Jin; Oh, Chulhong

    2017-08-28

    Antibacterial compounds are widely used in the treatment of human and animal diseases. The overuse of antibiotics has led to a rapid rise in the prevalence of drug-resistant bacteria, making the development of new antibacterial compounds essential. This study focused on developing a fast and easy method for identifying marine bacteria that produce antibiotic compounds. Eight randomly selected marine target bacterial species ( Agrococcus terreus, Bacillus algicola, Mesoflavibacter zeaxanthinifaciens, Pseudoalteromonas flavipulchra, P. peptidolytica, P. piscicida, P. rubra , and Zunongwangia atlantica ) were tested for production of antibacterial compounds against four strains of test bacteria ( B. cereus, B. subtilis, Halomonas smyrnensis , and Vibrio alginolyticus ). Colony picking was used as the primary screening method. Clear zones were observed around colonies of P. flavipulchra, P. peptidolytica, P. piscicida , and P. rubra tested against B. cereus, B. subtilis , and H. smyrnensis . The efficiency of colony scraping and broth culture methods for antimicrobial compound extraction was also compared using a disk diffusion assay. P. peptidolytica, P. piscicida , and P. rubra showed antagonistic activity against H. smyrnensis, B. cereus , and B. subtilis , respectively, only in the colony scraping method. Our results show that colony picking and colony scraping are effective, quick, and easy methods of screening for antibacterial compound-producing bacteria.

  11. Ecophysiological and biochemical traits of three herbaceous plants growing on the disposed coal combustion fly ash of different weathering stage

    Directory of Open Access Journals (Sweden)

    Gajić Gordana

    2013-01-01

    Full Text Available The ecophysiological and biochemical traits of Calamagrostis epigejos (Roth. Festuca rubra L. and Oenothera biennis L. growing on two fly ash lagoons of different weathering stage (L1-3 years and L2-11 years of the “Nikola Tesla- A” thermoelectric plant (Obrenovac, Serbia were studied. Species-dependent variations were observed at the L1 lagoon; the greatest vitality (Fv/Fm and Fm/Fo followed by higher photopigment and total phenolic contents were measured in O. biennis in relation to C. epigejos (p<0.001 and F. rubra (p<0.001. At the L2 site, higher vitality was found in O. biennis (p<0.001 and F. rubra (p<0.01 compared to C. epigejos. O. biennis had the highest photosynthetic capacity. The results obtained in this study indicate that all examined species maintained a level of photosynthesis that allowed them to survive and grow under the stressful conditions in ash lagoons, albeit with lower than optimal success. [Projekat Ministarstva nauke Republike Srbije, br. 173018

  12. An invasive slug exploits an ant-seed dispersal mutualism.

    Science.gov (United States)

    Meadley Dunphy, Shannon A; Prior, Kirsten M; Frederickson, Megan E

    2016-05-01

    Plant-animal mutualisms, such as seed dispersal, are often vulnerable to disruption by invasive species. Here, we show for the first time how a non-ant invasive species negatively affects seed dispersal by ants. We examined the effects of several animal species that co-occur in a temperate deciduous forest-including native and invasive seed-dispersing ants (Aphaenogaster rudis and Myrmica rubra, respectively), an invasive slug (Arion subfuscus), and native rodents-on a native myrmecochorous plant, Asarum canadense. We experimentally manipulated ant, slug, and rodent access to seed depots and measured seed removal. We also video-recorded depots to determine which other taxa interact with seeds. We found that A. rudis was the main disperser of seeds and that A. subfuscus consumed elaiosomes without dispersing seeds. Rodent visitation was rare, and rodent exclusion had no significant effect on seed or elaiosome removal. We then used data obtained from laboratory and field mesocosm experiments to determine how elaiosome robbing by A. subfuscus affects seed dispersal by A. rudis and M. rubra. We found that elaiosome robbing by slugs reduced seed dispersal by ants, especially in mesocosms with A. rudis, which picks up seeds more slowly than M. rubra. Taken together, our results show that elaiosome robbing by an invasive slug reduces seed dispersal by ants, suggesting that invasive slugs can have profound negative effects on seed dispersal mutualisms.

  13. EPR and IR spectral investigations on some leafy vegetables of Indian origin

    Science.gov (United States)

    Prasuna, C. P. Lakshmi; Chakradhar, R. P. S.; Rao, J. L.; Gopal, N. O.

    2009-09-01

    EPR spectral investigations have been carried out on four edible leafy vegetables of India, which are used as dietary component in day to day life. In Rumex vesicarius leaf sample, EPR spectral investigations at different temperatures indicate the presence of anti-ferromagnetically coupled Mn(IV)-Mn(IV) complexes. EPR spectra of Trigonella foenum graecum show the presence of Mn ions in multivalent state and Fe 3+ ions in rhombic symmetry. EPR spectra of Basella rubra indicate the presence of Mn(IV)-O-Mn(IV) type complexes. The EPR spectra of Basella rubra have been studied at different temperatures. It is found that the spin population for the resonance signal at g = 2.06 obeys the Boltzmann distribution law. The EPR spectra of Moringa oliefera leaves show the presence of Mn 2+ ions. Radiation induced changes in free radical of this sample have also been studied. The FT-IR spectra of Basella rubra and Moringa oliefera leaves show the evidences for the protein matrix bands and those corresponding to carboxylic C dbnd O bonds.

  14. Ensaio terapêutico com o Ketoconazol na pitiríase versicolorTherapeutic trial with Ketoconazole in PV

    Directory of Open Access Journals (Sweden)

    Leila Dagher

    1982-11-01

    Full Text Available Experimentação terapêutico-laboratorial com o Ketoconazol na Pitiríase Versicolor, obtendo os seguintes resultados: - Curados, 16 (88,88% pacientes; Melhorados, 2 pacientes (11,11%, Inalterados e Piorados, nenhum caso (0,00%, no total de 18 doentes estudados. Do ponto de vista laboratorial, houve negativação dos exames micológicos em 100,00% dos casos.Eighteen patients with pityriasis versicolor were treated with a single daily dose of 200mg of Ketoconazole administered with a meal, for a period of 30 days. Evaluation was based on clinical and mycological responses. Clinical and parasitoligical cure was obtained in 16 (88,88% patients and marked clinical improvement in 2(11,11%. No undesirable side effects were observed in the treatment.

  15. Management of Cosmetic Embarrassment Caused by Malassezia spp. with Fruticose Lichen Cladia Using Phylogenetic Approach

    Directory of Open Access Journals (Sweden)

    Anand Pandey

    2013-01-01

    Full Text Available During anti-Malassezia screening of plants by CLSI broth microdilution method, Cladia aggregata (Swartz Nyl. (family Cladoniaceae, a fruticose lichen from Sikkim (northeast Himalayan region, has been found effective at minimum inhibitory concentrations (mg/mL of 2.72, 0.63, and 1.28 against yeast-like fungi namely, M. furfur, M. globosa and M. sympodialis, respectively. These test pathogens are responsible for pityriasis versicolor (PV and seborrheic dermatitis (SD in humans. We tried to establish the reason for variable MICs against various Malassezia spp. using bioinformatical tools, thereby reducing the cost of the experimentation. This is the first report on anti-Malassezia activity of C. aggregata and thus can serve as a potential source for the development of cosmaceuticals.

  16. Leprosy in the Bible.

    Science.gov (United States)

    Grzybowski, Andrzej; Nita, Małgorzata

    2016-01-01

    For many years, the biblical term tzaraat has referred to leprosy. In fact, the disease or diseases described under this name have no relationship to leprosy, as it was known in the Middle Ages or today; moreover, the term referred not only to skin disease, but also to the state of the ritual impurity and punishment for the sins. Although the real nature of tzaraat remains unknown, the differential diagnosis might include the following: Psoriasis, seborrheic dermatitis, favus, dermatophyte infections, nummular dermatitis, atopic dermatitis, pityriasis rosea, crusted scabies, syphilis, impetigo, sycosis barbae, alopecia areata, furuncles, scabies, neurodermatitis, scarlet fever, lupus erythematosus, lichen sclerosus et atrophicus, folliculitis decalvans, morphea, sarcoidosis, and lichen planopilaris. Leprosy became interchangeable with the biblical leprosy due to two inaccurate translations: The Hebrew tzaraat was first translated into Greek as leprosy in the sixth century, and later, the word leprosy was translated into Arabic as lepra in the ninth century. Copyright © 2016 Elsevier Inc. All rights reserved.

  17. (Industrial dermatoses among the Belthatow brown coal miners)

    Energy Technology Data Exchange (ETDEWEB)

    Ruszczak, Z; Bienias, L; Proszyncka-Kuczynska, W

    1981-01-01

    443 subjects were examined, 235 applying to the physician due to the occurrence of skin dermatoses (group I) and 208 workers referred for periodic examinations (group II). In group I skin dermatoses were found in 100, i.e. 85%, of the subjects and in group II in 99 i.e. 48% of the subjects. In both groups the most frequent dermatosis was feet skin inflammation, especially interdigital intertrigo. Oil acne was diagnosed in 15, ordinary acne in 23, pityriasis versicolor in 19. erythrasma in 10, and eczema and contact dermatitis in 7 subjects of the first group and 3 subjects of the other group. 204 subjects with feet skin pathologies underwent mycologic examinations and 36 subjects--also bacteriologic examinations. The results of those studies indicate that in 23% of the subjects, feet interdigital intertrigo results from mycologic infections. Bacterial infections may contribute to etiopathogenesis. Imidazole compounds are useful for the treatment and prevention of interdigital intertrigo.

  18. 308nm Excimer Laser in Dermatology

    Science.gov (United States)

    Mehraban, Shadi

    2014-01-01

    308nm xenon-chloride excimer laser, a novel mode of phototherapy, is an ultraviolet B radiation system consisting of a noble gas and halide. The aim of this systematic review was to investigate the literature and summarize all the experiments, clinical trials and case reports on 308-nm excimer laser in dermatological disorders. 308-nm excimer laser has currently a verified efficacy in treating skin conditions such as vitiligo, psoriasis, atopic dermatitis, alopecia areata, allergic rhinitis, folliculitis, granuloma annulare, lichen planus, mycosis fungoides, palmoplantar pustulosis, pityriasis alba, CD30+ lympho proliferative disorder, leukoderma, prurigo nodularis, localized scleroderma and genital lichen sclerosus. Although the 308-nm excimer laser appears to act as a promising treatment modality in dermatology, further large-scale studies should be undertaken in order to fully affirm its safety profile considering the potential risk, however minimal, of malignancy, it may impose. PMID:25606333

  19. Prevalence and causative agents of superficial mycoses in a textile factory in Adana, Turkey.

    Science.gov (United States)

    Celik, E; Ilkit, M; Tanir, F

    2003-09-01

    This study was carried out in a textile factory settled in the city center of Adana, Turkey. The workers were evaluated for the presence of superficial mycoses and the interaction of their working environment or working condition. A total of 431 textile workers were included in the study, with a male to female ratio of 378 (87.7%) to 53 (12.3%) and an age range of 19-52 (mean: 33.7 +/- 6.8). Direct examination and/or culture revealed superficial mycoses in 73 (16.9%) workers, among them 56 (76.7%) were classified as dermatophytoses, 8 (11.0%) as Pityriasis versicolor while in nine (12.3%) of the cases, no causative agent could be determined. Trichophyton rubrum (57.1%) and T. mentagrophytes (42.9%) were the two species isolated on culture. This study emphasized that textile workers should be admitted as a risk group for superficial mycoses, especially tinea pedis.

  20. A clinico-etiological study of dermatoses in pediatric age group in tertiary health care center in South Gujarat region

    Directory of Open Access Journals (Sweden)

    Sugat A Jawade

    2015-01-01

    Full Text Available Background: Dermatologic conditions have different presentation and management in pediatric age group from that in adult; this to be studied separately for statistical and population based analysis. Objective: To study the pattern of various dermatoses in infants and children in tertiary health care center in South Gujarat region. Materials and Methods: This is a prospective study; various dermatoses were studied in pediatric patients up to 14 years of age attending the Dermatology OPD of New Civil Hospital, Surat, Gujarat over a period of 12 months from June 2009 to June 2010. All patients were divided into four different study groups: 1 to 6 years and 7 to 14 years. Results: There were 596 boys and 425 girls in total 1021 study populations. Majority of the skin conditions in neonates were erythema toxicum neonatorum (12.97%, scabies (9.92%, mongolian spot (9.16%, and seborrheic dermatitis (7.63%. In > 1 month to 14 years age group of children among infectious disorder, children were found to be affected most by scabies (24.49%, impetigo (5.96%, pyoderma (5.62%, molluscum contagiosum (5.39%, tinea capitis (4.49%, leprosy (2.02%, and viral warts (1.35% while among non-infectious disorders, they were affected by atopic dermatitis (4.27%, pityriasis alba (4.16%, seborrheic dermatitis (3.60%, pityriasis rosea (3.15%, others (3.01%, phrynoderma (2.70%, lichen planus (2.58%, contact dermatitis (1.57% and ichthyosis (1.45%. Conclusion: There is a need to emphasize on training the management of common pediatric dermatoses to dermatologists, general practitioners and pediatricians for early treatment.

  1. Artemisia sieberi Besser essential oil and treatment of fungal infections.

    Science.gov (United States)

    Mahboubi, Mohaddese

    2017-05-01

    A. sieberi essential oil has been used for treatment of hardly curable infectious ulcers in Middle East Medicine and has been famous due to its wormicide effects. In this review, we evaluated the potency of A. sieberi essential oil in treatment of fungal infections. We searched in PubMed Central, Science direct, Wiley, Springer, SID, and accessible books, reports, thesis. There is a lot of mixed information on chemical compositions of A. sieberi essential oil, but most articles reported α, β-thujones as the main components of essential oils. In vitro studies confirmed the antifungal activity of A. sieberi essential oil against saprophytes fungi, dermatophytes, Malassezia sp. and Candida sp. and these results were confirmed in six clinical studies. The clinical studies confirmed the superiority of A. sieberi essential oil (5%) lotion in improvement of clinical signs of fungal superficial diseases, and mycological laboratory examinations of dermatophytosis and pityriasis versicolor diseases than clotrimazole (1%) topical treatment. The recurrence rate of superficial fungal infections with dermatophytosis and pityriasis versicolor was statistically lower in A. sieberi essential oil (5%) lotion than clotrimazole. There are no adverse effects due to the application of A. sieberi essential oil in clinical studies. Despite, the efficacy of A. sieberi essential oil against Candida sp., there is no clinical study about their related infections. Investigation about the effects of A. sieberi essential oil on fungal virulence factors in order to identifying the exact mechanism of antifungal activity and clinical trials on Candida related diseases are recommended. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  2. Further delineation of cardio-facio-cutaneous syndrome: clinical features of 38 individuals with proven mutations.

    Science.gov (United States)

    Armour, C M; Allanson, J E

    2008-04-01

    Cardio-facio-cutaneous syndrome (CFC) is a multiple congenital anomaly/mental retardation syndrome named because of a characteristic facies, cardiac anomalies, and ectodermal abnormalities. While considerable literature describes the main features, few studies have documented the frequencies of less common features allowing a greater appreciation of the full phenotype. We have analysed clinical data on 38 individuals with CFC and a confirmed mutation in one of the genes known to cause the condition. We provide data on well-established features, and those that are less often described. Polyhydramnios (77%) and prematurity (49%) were common perinatal issues. 71% of individuals had a cardiac anomaly, the most common being pulmonary valve stenosis (42%), hypertrophic cardiomyopathy (39%), and atrial septal defect (28%). Hair anomalies were also typical: 92% had curly hair, 84% sparse hair, and 86% absent or sparse eyebrows. The most frequent cutaneous features were keratosis pilaris (73%), hyperkeratosis (61%) and nevi (76%). Significant and long lived gastrointestinal dysmotility (71%), seizures (49%), optic nerve hypoplasia (30%) and renal anomalies, chiefly hydronephrosis (20%), were among the less well known issues reported. This study reports a broad range of clinical issues in a large cohort of individuals with molecular confirmation of CFC.

  3. Breeding Bird Assemblage in a Mosaic of Urbanized Habitats in a Central European City

    Directory of Open Access Journals (Sweden)

    Kopij Grzegorz

    2016-04-01

    Full Text Available There is a lack of data on the population densities of birds breeding in a mosaic of typical urbanized habitats. This study was undertaken to partly fulfil this gap in our knowledge. Counts were conducted in 2008 by means of simplified territory mapping method in a fragment (1197 ha of a large Central European city (Wrocław, SW Poland. In total, 50 bird species were breeding in the study area in 2008. The House Sparrow Passer domesticus, Common Swift Apus apus and Rock Dove comprised about 3/5 of all breeding pairs. The other group of species, each one with a density between 6 and 13 pairs per 100 ha, included seven species, namely the Starling, Sturnus vulgaris, Greenfinch, Carduelis chloris, House Martin, Delichon urbica, Tree Sparrow, Passer montanus, Great Tit, Parus major, Blue Tit, Parus caeruleus, and Jackdaw, Corvus monedula. They comprised together about 1/5. The remaining 40 species nested in a density between 0.1 and 3.5 pairs per 100 ha. The most numerous feeding guild were granivores (53.8% and insectivores (37.9 %. Birds nesting on buildings comprised together 74 % of all breeding pairs. For a few species (Luscinia megarhynchos, Saxicola torquata, Corvus cornix and Turdus pilaris an increase in their numbers in the last three decades has been evidenced.

  4. Ornithological Fauna of the Waste Water Treatment Plants in the Northern Left Bank Ukraine (Chernihiv and Kyiv Regions: Winter Populations and Ecological Structure

    Directory of Open Access Journals (Sweden)

    Fedun О. М.

    2016-12-01

    Full Text Available The article discusses winter bird populations of the waste water treatment plants (WWTP located in the North of Left -bank Ukraine. The said population comprises 12 orders and 29 families. The most numerous are Passeriformes (37 species, Аnsеriformes (16 species and Falconiformes (6 species. Parus major was registered at all types of facilities while most of the others house Passer montanus, Carduelis carduelis, Turdus pilaris, and Parus caeruleus. The largest number of wintering birds was registered at Bortnychi aeration station, Chernihiv municipal WWTP and Chernihiv wool processing factory - 79. 51 and 15 species respectively. The nuclear part of the bird numbers are the species residing at the facilities all year around (65.8 %; species occurring there in winter only account for 34.2 %. Dendrophilous (38 species and hydrophilous (35 species dominate among them. The primary role in forming the winter fauna of the waste water treatment plants belongs to the zones of water bodies and dams.

  5. SPECIAL CHARACTERISTICS OF TREATMENT OF SEVERE ATOPIC DERMATITIS IN CHILDREN

    Directory of Open Access Journals (Sweden)

    D. Sh. Macharadze

    2013-01-01

    Full Text Available The article analyzes modern data on risk factors of severe course of atopic dermatitis in children: the role of alimentary and inhalant allergens, cutaneous infections, allergic reactions to drugs used in the treatment of disease. The most important questions of differential diagnosis of atopic dermatitis in children and the distinctive features of the illness, which may be mistaken for atopic dermatitis (primary immunodeficiencies, keratosis pilaris, psoriasis, enteropatic acrodermatitis; cutaneous bacterial and fungal infections, and drug-induced contact dermatitis to topical creams and ointments are discussed. Treatment of atopic dermatitis is based on modern approaches and includes recommendations on the use of emolents, anti-inflammatory drugs (topical glucocorticoids and calcineurin inhibitors. The article provides indications and contraindications to the administration of anti-inflammatory drugs. Special recommendations for use of cleansers and emolents at all degrees of severity of atopic dermatitis, which helps reduce the risk of side effects of topical corticosteroids, complications such as cutaneous infections and helps to maintain remission of disease are given. The importance of training programs patients is emphasized. Compliance of patients and/or their parents contributes to the achievement of the desired effect of the treatment of atopic dermatitis, which will improve the patients’ quality of life.

  6. A Topic Diathesis In Hereditary Ichthyosis Patients Attending A Tertiary Health Care Center In Saudi Arabia

    Directory of Open Access Journals (Sweden)

    Al-Akloby Omar M Al-Amro

    2004-01-01

    Full Text Available The occurrence of atopic diathesis in hereditary ichthyosis (HI has not been documented in Saudi patients. The atopic manifestations in histopathologically confirmed HI patients attending the dermatology clinic of king Fahad Hospital of the University at Al-Khobar city, Saudi Arabia is discussed in this study. From the dermatology OPD logbook, all Saudi patients with confirmed HI seen between January 1990 to December 1995 were included in the study. The findings regarding atopic manifestations were extracted into data collection forms and analyzed. During the 5 year study period, 10,455 new cases were seen in our dermatology OPD. Of these, 61 had hereditary icthyosis, with 37 males and 24 females with a male to female ratio of 1.5:1. Thus, the frequency of HI among Saudi hospital attendees was 6 per 1000 new cases. The type of HI was ichthyosis vulgaris in 25 (41% patients, X-linked recessive ichthyosis in 11 (18%, lamellar ichthyosis in 4(7%, bullous ichthyosiform erythroderma in 2 (3% and nonbullous ichthyosiform erythroderma was seen in 19 (31%. Generalized pruritus was present in 49 (80% cases, atopic dermatitis in , elevated serum IgE level was noted in 27 and bronchial asthma in 3 cases. Dandruff was reported in 24 cases, keratosis pilaris in15, recurrent skin infection in 7. Combination of hereditary ichthyosis, generalized pruritus and high serum IGE level was reported in 27 (44.3% patient.

  7. Ichthyosis vulgaris: the filaggrin mutation disease.

    Science.gov (United States)

    Thyssen, J P; Godoy-Gijon, E; Elias, P M

    2013-06-01

    Ichthyosis vulgaris is caused by loss-of-function mutations in the filaggrin gene (FLG) and is characterized clinically by xerosis, scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. According to the published studies presented in this review article, FLG mutations are observed in approximately 7·7% of Europeans and 3·0% of Asians, but appear to be infrequent in darker-skinned populations. This clinical review article provides an overview of ichthyosis vulgaris epidemiology, related disorders and pathomechanisms. Not only does ichthyosis vulgaris possess a wide clinical spectrum, recent studies suggest that carriers of FLG mutations may have a generally altered risk of developing common diseases, even beyond atopic disorders. Mechanistic studies have shown increased penetration of allergens and chemicals in filaggrin-deficient skin, and epidemiological studies have found higher levels of hand eczema, irritant contact dermatitis, nickel sensitization and serum vitamin D levels. When relevant, individuals should be informed about an increased risk of developing dermatitis when repeatedly or continuously exposed to nickel or irritants. Moreover, with our current knowledge, individuals with ichthyosis vulgaris should be protected against neonatal exposure to cats to prevent atopic dermatitis and should abstain from smoking to prevent asthma. Finally, they should be advised against excessive exposure to factors that decrease skin barrier functions and increase the risk of atopic dermatitis. © 2013 The Authors. BJD © 2013 British Association of Dermatologists.

  8. In vivo synthesis of nanomaterials in plants: location of silver nanoparticles and plant metabolism

    Science.gov (United States)

    Marchiol, Luca; Mattiello, Alessandro; Pošćić, Filip; Giordano, Cristiana; Musetti, Rita

    2014-03-01

    Metallic nanoparticles (MeNPs) can be formed in living plants by reduction of the metal ions absorbed as soluble salts. It is very likely that plant metabolism has an important role in MeNP biosynthesis. The in vivo formation of silver nanoparticles (AgNPs) was observed in Brassica juncea, Festuca rubra and Medicago sativa. Plants were grown in Hoagland's solution for 30 days and then exposed for 24 h to a solution of 1,000 ppm AgNO3. In the leaf extracts of control plants, the concentrations of glucose, fructose, ascorbic acid, citric acid and total polyphenols were determined. Total Ag content in plant fractions was determined by inductively coupled plasma atomic emission spectroscopy. Despite the short exposure time, the Ag uptake and translocation to plant leaves was very high, reaching 6,156 and 2,459 mg kg-1 in B. juncea and F. rubra, respectively. Ultrastructural analysis was performed by transmission electron microscopy (TEM), and AgNPs were detected by TEM X-ray microanalysis. TEM images of plant fractions showed the in vivo formation of AgNPs in the roots, stems and leaves of the plants. In the roots, AgNPs were present in the cortical parenchymal cells, on the cell wall of the xylem vessels and in regions corresponding to the pits. In leaf tissues, AgNPs of different sizes and shapes were located close to the cell wall, as well as in the cytoplasm and within chloroplasts. AgNPs were not observed in the phloem of the three plant species. This is the first report of AgNP synthesis in living plants of F. rubra. The contents of reducing sugars and antioxidant compounds, proposed as being involved in the biosynthesis of AgNPs, were quite different between the species, thus suggesting that it is unlikely that a single substance is responsible for this process.

  9. Changes in composition, structure and aboveground biomass over seventy-six years (1930-2006) in the Black Rock Forest, Hudson Highlands, southeastern New York State.

    Science.gov (United States)

    Schuster, W S F; Griffin, K L; Roth, H; Turnbull, M H; Whitehead, D; Tissue, D T

    2008-04-01

    We sought to quantify changes in tree species composition, forest structure and aboveground forest biomass (AGB) over 76 years (1930-2006) in the deciduous Black Rock Forest in southeastern New York, USA. We used data from periodic forest inventories, published floras and a set of eight long-term plots, along with species-specific allometric equations to estimate AGB and carbon content. Between the early 1930s and 2000, three species were extirpated from the forest (American elm (Ulmus americana L.), paper birch (Betula papyrifera Marsh.) and black spruce (Picea mariana (nigra) (Mill.) BSP)) and seven species invaded the forest (non-natives tree-of-heaven (Ailanthus altissima (Mill.) Swingle) and white poplar (Populus alba L.) and native, generally southerly distributed, southern catalpa (Catalpa bignonioides Walt.), cockspur hawthorn (Crataegus crus-galli L.), red mulberry (Morus rubra L.), eastern cottonwood (Populus deltoides Bartr.) and slippery elm (Ulmus rubra Muhl.)). Forest canopy was dominated by red oak and chestnut oak, but the understory tree community changed substantially from mixed oak-maple to red maple-black birch. Density decreased from an average of 1500 to 735 trees ha(-1), whereas basal area doubled from less than 15 m(2) ha(-1) to almost 30 m(2) ha(-1) by 2000. Forest-wide mean AGB from inventory data increased from about 71 Mg ha(-1) in 1930 to about 145 Mg ha(-1) in 1985, and mean AGB on the long-term plots increased from 75 Mg ha(-1) in 1936 to 218 Mg ha(-1) in 1998. Over 76 years, red oak (Quercus rubra L.) canopy trees stored carbon at about twice the rate of similar-sized canopy trees of other species. However, there has been a significant loss of live tree biomass as a result of canopy tree mortality since 1999. Important constraints on long-term biomass increment have included insect outbreaks and droughts.

  10. Imaging of Budd-Chiari syndrome

    International Nuclear Information System (INIS)

    Buckley, O.; O' Brien, J.; Snow, A.; Stunell, H.; Torreggiani, W.C.; Lyburn, I.; Munk, P.L.

    2007-01-01

    Budd-Chiari syndrome occurs when venous outflow from the liver is obstructed. The obstruction may occur at any point from the hepatic venules to the left atrium. The syndrome most often occurs in patients with underlying thrombotic disorders such as polycythemia rubra vera, paroxysmal nocturnal hemoglobinuria and pregnancy. It may also occur secondary to a variety of tumours, chronic inflammatory diseases and infections. Imaging plays an important role both in establishing the diagnosis of Budd-Chiari syndrome as well as evaluating for underlying causes and complications such as portal hypertension. In this review article, we discuss the role of modern imaging in the evaluation of Budd-Chiari syndrome. (orig.)

  11. Induction and evaluation of mutations for improved protein production in certain species of yeasts in the Philippines

    International Nuclear Information System (INIS)

    Borromeo, J.D.

    1976-02-01

    The species of yeasts included in the studies are Saccharomyces cerevisiae, Rhodeterula rubra, Rhodeterula pilimane and those isolated from fruits such as citrus, papaya and banana. Part of the project involved induction of sporulation to obtain haploid cells for crossing to produce stable disploids exhibiting improved protein production. Although S. cerevisiae produce less protein than Rhodeterula, it produces ascesperes which are haploid cells. These haploid cells can be used to obtain stable diploids with the desirable characteristics by crossing cultures. Rhodeterula, a fungus that does not produce ascesperes will be subjected to certain adverse conditions to induce, hopefully, sperulation

  12. Distribution, host specificity, and the potential for cryptic speciation in hoverfly Microdon myrmicae (Diptera: Syrphidae), a social parasite of Myrmica ants

    DEFF Research Database (Denmark)

    Bonelli, Simona; Witek, Magdalena; Canterino, Sara

    2011-01-01

    , however, the possibility that this reflects the presence of two separate Microdon species, each connected to one species of Myrmica. 3. Forty populations of Microdon myrmicae and 37 populations of Microdon mutabilis are currently known in Europe. All the populations in central and southern Europe...... Myrmica species were identified to the host Microdon myrmicae: Myrmica gallienii (eight populations), Myrmica rubra (four), Myrmica vandeli (one), and Myrmica sabuleti (one). Microdon myrmicae occurs in waterlogged grassland habitats, mainly of the ‘Molinietum’ type, resulting in a patchy distribution...

  13. Mycological studies housed in the Apollo 16 microbial ecology evaluation device

    Science.gov (United States)

    Volz, P. A.

    1973-01-01

    Survival, death, and phenotype count have yielded variation in the number of fungi recovered from the controls and the flight exposed cuvettes during preliminary analysis of postflight first phase data. Also the preliminary analysis was indicative that fungi exposed to specific space flight conditions demonstrated variable survival rates and phenotype counts. Specific space flight conditions included full light space exposure for Chaetomium globosum, exposure at 300- and 254-nanometer wavelengths for Rhodotorula rubra, full light and 280-nanometer wavelength exposure for Trichophyton terrestre, and 254-nanometer wavelength exposure for Saccharomyces cerevisiae. In general, phenotype counts for flight cuvettes and survival rates for control cuvettes were higher compared with the remaining cuvettes.

  14. Characteristics of the distant effect of γ-irradiation of seeds for diploid and poliploid plants

    International Nuclear Information System (INIS)

    Olimpienko, G.S.; Pavlova, N.A.; Lebedeva, O.N.; Nikolaevskaya, T.S.; Tikhonov, P.V.

    1995-01-01

    In comparative radiobiological and cytogenetic study of three species of grasses (Festuca pratensis Huds., 2x=14, Dactylis glomerata L., 2x=28. Festuca rubra L., 2x=42) it was found that the distant cytogenetic effects of γ-irradiation of seeds were different in diploids and polyploids. The rate of abberant cells was higher in poliploids. The latter is connected with delay of cell division that is unequally expressed for diploids and polyploids. We suggest that cytogenetic effects dependency on division delay and interphase death of cells is spreaded to more than one generation. 7 refs.; 2 figs.; 3 tabs

  15. Point-Source and Area-Wide Field Studies of Pyriproxyfen Autodissemination Against Urban Container-Inhabiting Mosquitoes

    Science.gov (United States)

    2014-04-05

    in 50 L trash cans. Oak leaves of Quercus alba (L.) and Q. rubra (L.) were used because this infusion elicits oviposition responses from container...105 ha in area (Fig. 2), whereas, the control site was in Union Beach , NJ (40.2650 lat., - 74.71026 long.) and spanned 181 ha. Both the treatment and...people/km2) than Union Beach (1384.7 people/km2). We initially intended to assess pyriproxyfen-based area-wide autodissemination by treating 25% of an

  16. Differentiation of enzymatic activity of yeasts and yeast-like microorganisms isolated from various environments

    Directory of Open Access Journals (Sweden)

    Elżbieta Bogusławska-Wąs

    2014-08-01

    Full Text Available The aim of study was to determinate enzymatic activity of yeast-like organisms - Candida lipolytica, Rhodotorula rubra, Trichosporon beigelii, Zygosaccharomyces sp. - isolated from the Szczecin Lagoon and herring salads. We have shown that lipolytic activity was higher than protcolytic for every strain tested. The lowest activity level was found out for amylolytic hydrolases. The results also demonstrated that yeast-like organisms isolated from the Szczecin Lagoon revealed much higher average enzymatic activity compared to tbe same species isolated from herring salads, excepting C. lipolytica.

  17. Testing the adjustable threshold model for intruder recognition on Myrmica ants in the context of a social parasite

    DEFF Research Database (Denmark)

    Fürst, Matthias Alois; Durey, Maëlle; Nash, David Richard

    2012-01-01

    gains access to the ants' nests by mimicking their cuticular hydrocarbon recognition cues, which allows the parasites to blend in with their host ants. Myrmica rubra may be particularly susceptible to exploitation in this fashion as it has large, polydomous colonies with many queens and a very viscous...... and therefore the less-related workers within a colony, the less aggressively they will behave; and that colonies facing parasitism will be more aggressive than colonies experiencing less parasite pressure. Our results confirm all these predictions, supporting flexible aggression behaviour in Myrmica ants...

  18. Study of ants as bioindicators of industrial pollution in Kemerovo Region, Russia

    Science.gov (United States)

    Blinova, S. V.; Dobrydina, T. I.

    2018-01-01

    The myrmecocomplexes of five industrial cities in the territory of Kuzbass, Russia, were studied. The general trends in the reaction of ants to the pollution by gaseous (chemical industry) and solid (coal and cement dust, lead and zinc waste and metallurgical industry) emissions were revealed. It was found out that the proportion of species of subfamilies, species richness and density of the settlement can be used as bioindicators. The predominance of L. niger and M. rubra nests in myrmecocomplexes immediately indicates a high degree of man-made impact.

  19. The toxic dinoflagellate Dinophysis acuminata harbors permanent chloroplasts of cryptomomad prigin, not kleptochloroplasts

    DEFF Research Database (Denmark)

    Garcia, Lydia; Moestrup, Øjvind; Hansen, Per Juel

    2010-01-01

    of Dinophysis acuminata was established by feeding it the phototrophic ciliate Mesodinium rubrum (= Myrionecta rubra), which again was fed the cryptophyte Teleaulax amphioxeia. Molecular analysis comprising the nucleomorph LSU and two chloroplast markers (tufA gene and a fragment from the end of 16S r......DNA to the beginning of 23S rDNA) resulted in identical sequences for the three organisms. Yet, transmission electron microscopy of the three organisms revealed that several chloroplast features separated D. acuminata from both T. amphioxeia and M. rubrum. The thylakoid arrangement, the number of membranes around...

  20. Imaging of Budd-Chiari syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Buckley, O.; O' Brien, J.; Snow, A.; Stunell, H.; Torreggiani, W.C. [Adelaide and Meath Hospital, Incorporating the National Children' s Hospital (AMNCH), Department of Radiology, Dublin 24 (Ireland); Lyburn, I. [Cheltenham Hospital, Department of Radiology, Cheltenham (United Kingdom); Munk, P.L. [Vancouver General Hospital, Department of Radiology, Vancouver (Canada)

    2007-08-15

    Budd-Chiari syndrome occurs when venous outflow from the liver is obstructed. The obstruction may occur at any point from the hepatic venules to the left atrium. The syndrome most often occurs in patients with underlying thrombotic disorders such as polycythemia rubra vera, paroxysmal nocturnal hemoglobinuria and pregnancy. It may also occur secondary to a variety of tumours, chronic inflammatory diseases and infections. Imaging plays an important role both in establishing the diagnosis of Budd-Chiari syndrome as well as evaluating for underlying causes and complications such as portal hypertension. In this review article, we discuss the role of modern imaging in the evaluation of Budd-Chiari syndrome. (orig.)

  1. Operational Draft Regional Guidebook for the Functional Assessment of High-gradient Ephemeral and Intermittent Headwater Streams in Western West Virginia and Eastern Kentucky

    Science.gov (United States)

    2010-07-01

    Liriodendron tulipifera tuliptree Ulmus rubra slippery elm Magnolia acuminata cucumber-tree Ulmus thomasii rock elm ERDC/EL TR-10-11 103 Watershed...americana American elm ERDC/EL TR-10-11 41 0 0.5 1 1.5 2 2.5 SRV per 100 feet of stream reach 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Va ria bl e S...canadensis eastern hemlock Juglans nigra black walnut Ulmus americana American elm Liquidambar styraciflua sweetgum Ulmus parvifolia Chinese elm

  2. Some effects of smelter pollution northeast of Falconbridge, Ontario

    Energy Technology Data Exchange (ETDEWEB)

    Gorham, E

    1960-01-01

    A study along a line northwest from the metal smelter at Falconbridge, Ontario, reveals that strong sulphate accumulation in the surface soil occurs only within about one mile of the chimneys emitting sulphur dioxide pollution while effects upon the soil drainage waters are marked to a distance of nearly two miles, and still clearly evident 10 or more miles away. The number of species present in the flora declines sharply within about four miles of the smelter, but certain species (e.g. Pinus strobus, Vaccinium myrtilloides) disappear at much greater distances. Among the most tolerant species are Acer rubrum, Quercus rubra, Sambucus pubens, and Polygonum cilinode.

  3. First report of Seuratascaris numidica Seurat, 1917 (Nematoda: Ascarididae) and other helminths from amphibians of West Bengal, India.

    Science.gov (United States)

    Sou, Sujan K; Bursey, Charles R

    2017-03-01

    Studies on nematode parasites from anuran hosts from Eastern India, particularly West Bengal, are rare. To our knowledge, there is a report of larvae of Monhysterides sp. (a fish parasite) from cysts within the body cavity and musculature of Duttaphrynus melanostictus, Hoplobatrachus tigerinus and Euphlyctis hexadactylus as well as descriptions of Aplectana duttaphryni from D. melanostictus , Aplectana dubrajpuri from H. tigerinus , Cosmocerca microhylae from Microhyla rubra and Rhabdias bulbicauda from D. melanostictus . Here, we report mature individuals of typical anuran parasites, Diplodiscus amphichrus and Seuratascaris numidica , from H. tigerinus and larvae of Acuariidae (a bird parasite) from Fejervarya limnocharis collected in Kulti, West Bengal.

  4. Comparison of biomass productivity and nitrogen fixing potential of Azolla SPP

    Energy Technology Data Exchange (ETDEWEB)

    Arora, A.; Singh, P.K. [Indian Agricultural Research Inst., New Delhi (India)

    2003-03-01

    Study was conducted on six different Azolla species, available in the germplasm collection of NCCUBGA, IARI, New Delhi namely A. filiculoides, A. mexicana, A. microphylla, A. pinnata, A. rubra and A. caroliniana in a polyhouse to assess their growth potential by determining their maximal biomass productivity, doubling time and relative growth rates. Their nitrogen fixing potential was assessed by acetylene reduction assay. Among them Azolla microphylla gave highest biomass production and relative growth rate followed by Azolla caroliniana. Both these had high nitrogenase activity also. Peak nitrogenase activity of these strains was found on 14th day of growth and it declined on further incubation. Azolla microphylla and Azolla rubra were more tolerant to salinity than others. On the other hand Azolla pinnata, which is endemic species found in India, exhibited low biomass production, relative growth rate and lower nitrogenase activity compared to other species. It was unable to sustain growth in saline medium. Under polyhouse conditions, A. microphylla was found to perform better than other cultures in terms of biomass productivity, N fixing ability and salt tolerance. Hence it is taken up for mass production.(author)

  5. Production of Basella plants resistant to rust by irradiation of seeds and vegetative tissue

    International Nuclear Information System (INIS)

    Makambila, C.

    1997-01-01

    Basella is classified in the family Chenopodiaceae or Basellaceae. Also known as African spinach, this plant is consumed in Central Africa and several other African countries. There are two types of varieties grown in Congo: i. a local variety characterized by red leaves and stalks in which the principal way of propagation is from cuttings; ii. a group of varieties which have green or purple leaves and stalks. These varieties are called Basella alba and Basella rubra. These varieties have sexual reproduction. Among the two groups of varieties, the local variety is propagated vegetatively but is resistant to rust, while varieties with green leaves or with purple leaves (B. alba and B. rubra) that are propagated from seed are susceptible to rust. Since hybrid cannot be made by conventional crossing, the following procedures have been adopted to produce plants with disease tolerance: 1. production of resistant variants by irradiation of Basella alba seeds with Cesium 137; 2. production of resistant variants by irradiation of vegetative tissues obtained by culture of meristematic cells of B alba; and 3. obtaining resistant plants through somaclonal variation. 1 tab

  6. Seasonal responses of six Poaceae to differential levels of solar UV-B radiation

    International Nuclear Information System (INIS)

    Deckmyn, G.; Impens, I.

    1999-01-01

    The effects of changes in solar UV-B on the growth and pigmentation of six grass species from cold-temperate grasslands (Lolium perenne, Lolium multiflorum, Festuca arundinacea, Festuca rubra, Phleum pratense and Dactylis glomerata) in spring and summer were studied. The grasses were grown in greenhouses with different foils, resulting in three treatments: no UV-B, 80% of ambient and 90% of ambient UV-BBE (biologically effective UV-B). The results indicated important effects of ambient UV-B levels on grass, but the different species reacted in very different ways. Both morphology and biomass production were influenced by UV-B in some species. However, changes in biomass production did not necessarily occur within the same species as changes in morphology. The grasses were more sensitive in summer. Overall, only F. rubra was positively influenced by UV-B under all circumstances. The biomass of D. glomerata and L. perenne was reduced by UV-B in spring and summer. Morphological changes included reduced height and increased tillering. The sensitivity of the different species was partially explained by their ability to reduce their specific leaf area in response to UV-B. Only the more sensitive species showed increased production of protective pigments. Overall, there were important differences between the effect of a low level of UV-B, and the further increase in UV-B, indicating that several mechanisms are operating at different light levels. (author)

  7. Post-eruption legacy effects and their implications for long-term recovery of the vegetation on Kasatochi Island, Alaska

    Science.gov (United States)

    Talbot, S. S.; Talbot, S.L.; Walker, L.R.

    2010-01-01

    We studied the vegetation of Kasatochi Island, central Aleutian Islands, to provide a general field assessment regarding the survival of plants, lichens, and fungi following a destructive volcanic eruption that occurred in 2008. Plant community data were analyzed using multivariate methods to explore the relationship between pre- and post-eruption plant cover; 5 major vegetation types were identified: Honckenya peploides beach, Festuca rubra cliff shelf, Lupinus nootkatensisFestuca rubra meadow, Leymus mollis bluff ridge (and beach), and Aleuria aurantia lower slope barrens. Our study provided a very unusual glimpse into the early stages of plant primary succession on a remote island where most of the vegetation was destroyed. Plants that apparently survived the eruption dominated early plant communities. Not surprisingly, the most diverse post-eruption community most closely resembled a widespread pre-eruption type. Microhabitats where early plant communities were found were distinct and apparently crucial in determining plant survival. Comparison with volcanic events in related boreal regions indicated some post-eruption pattern similarities. ?? 2010 Regents of the University of Colorado.

  8. Growth responses of maritime sand dune plant species to arbuscular mycorrhizal fungi

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    Mariusz Tadych

    2014-08-01

    Full Text Available In a pot experiment conducted in a greenhouse, the response of 6 plant species dominating in the succession of vegetation of a deflation hollow of the Łeba Bar to inoculation with arbuscular mycorrhizal fungi (AMF was investigated. The inoculum was a mixture of soil, roots and spores of 5 species of AMF with the dominant species Glomus aggregatum. Except for Corynephorus canescens and Festuca rubra subsp. arenaria, both the growth and the dry matter of above-ground parts of plants of Agrostis stolonifera, Ammophila arenaria, Corynephorus canescens, Juncus articulatus and J. balticus inoculated with AMF were higher than those growing in soils lacking infection propagules of these fungi. Inoculation with AMF decreased the dry matter of root: shoot ratios in 5 plant species. This property was not determined in Festuca rubra subsp. arenaria due to the death of all control plants. The level of mycorrhizal infection was low and did not correlate with the growth responses found. The high growth reaction of Juncus spp. to AMF found in this study suggests that the opinion of non-mycotrophy or low dependence of plants of Juncaceae on AMF was based on results of investigations of plants growing in wet sites known to inhibit the formation of mycorrhizae.

  9. Antimicrobial screening of some medicinal plants from Mato Grosso Cerrado

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    Iberê E Silva Junior

    Full Text Available Hexane, dichloromethane, ethyl acetate and ethanol extracts from stem barks of Bowdichia virgilioides, Calophyllum brasiliense, Cariniana rubra, Lafoensia pacari, and Stryphnodendron obovatum and rhizome of Simaba ferruginea and Dragon's blood red sap from Croton urucurana were screened against a panel of bacteria and fungi using the micro-broth dilution method. Dragon's blood from Croton urucurana was the most effective antimicrobial plant material. Ethyl acetate and hexane extracts of Calophyllum brasiliense stem bark deserved distinction by their selective antibacterial activity. Lafoensia pacari stem bark polar extracts distinguished by their potent and selective anti-yeast activity and Bowdichia virgilioides polar and non-polar extracts by their antifungal activity towards hyalohypho-mycetes and dermatophytes. This is the first report showing antifungal activity for polar extracts of Cariniana rubra and Simaba ferruginea. This study has demonstrated antimicrobial activity of Mato Grosso Cerrado ethnomedicinal plants in in vitro assays and has indicated that they can be effective potential candidates for the development of new strategies to treat fungal and bacterial infections.

  10. Production of Basella plants resistant to rust by irradiation of seeds and vegetative tissue

    Energy Technology Data Exchange (ETDEWEB)

    Makambila, C [Laboratory of Phytopathology, Faculty of Sciences, Univ. of Brazzaville, Brazzaville (Congo)

    1997-12-01

    Basella is classified in the family Chenopodiaceae or Basellaceae. Also known as African spinach, this plant is consumed in Central Africa and several other African countries. There are two types of varieties grown in Congo: i. a local variety characterized by red leaves and stalks in which the principal way of propagation is from cuttings; ii. a group of varieties which have green or purple leaves and stalks. These varieties are called Basella alba and Basella rubra. These varieties have sexual reproduction. Among the two groups of varieties, the local variety is propagated vegetatively but is resistant to rust, while varieties with green leaves or with purple leaves (B. alba and B. rubra) that are propagated from seed are susceptible to rust. Since hybrid cannot be made by conventional crossing, the following procedures have been adopted to produce plants with disease tolerance: 1. production of resistant variants by irradiation of Basella alba seeds with Cesium 137; 2. production of resistant variants by irradiation of vegetative tissues obtained by culture of meristematic cells of B alba; and 3. obtaining resistant plants through somaclonal variation. 1 tab.

  11. Genetic diversity among and within cultured cyanobionts of diverse species of Azolla.

    Science.gov (United States)

    Sood, A; Prasanna, R; Prasanna, B M; Singh, P K

    2008-01-01

    The cyanobionts isolated from 10 Azolla accessions belonging to 6 species (Azolla mexicana, A. microphylla, A. rubra, A. caroliniana, A. filiculoides, A. pinnata) were cultured under laboratory conditions and analyzed on the basis of whole cell protein profiles and molecular marker dataset generated using repeat sequence primers (STRR(mod) and HipTG). The biochemical and molecular marker profiles of the cyanobionts were compared with those of the free-living cyanobacteria and symbiotic Nostoc strains from Anthoceros sp., Cycas sp. and Gunnera monoika. Cluster analysis revealed the genetic diversity among the selected strains, and identified 3 distinct clusters. Group 1 included cyanobionts from all the 10 accessions of Azolla, group 2 comprised all the symbiotic Nostoc strains, while group 3 included the free-living cyanobacteria belonging to the genera Nostoc and Anabaena. The interrelationships among the Azolla cyanobionts were further revealed by principal component analysis. Cyanobionts from A. caroliniana-A. microphylla grouped together while cyanobionts associated with A. mexicana-A. filiculoides along with A. pinnata formed another group. A. rubra cyanobionts had intermediate relationship with both the subgroups. This is the first study analyzing the diversity existing among the cultured cyanobionts of diverse Azolla species through the use of biochemical and molecular profiles and also the genetic distinctness of these free-living cyanobionts as compared to cyanobacterial strains of the genera Anabaena and Nostoc.

  12. Cool-Season Turfgrass Species and Cultivars: Response to Simulated Traffic in Central Italy

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    Carlo F. Cereti

    2010-03-01

    Full Text Available Turfgrass species differ greatly in their ability to withstand the abrasion and compaction of traffic. Wear tolerance of turfgrass species and cultivars has been evaluated abroad by many researchers, while only few and partial studies have been conducted in Italy. Field experiment was carried out in Viterbo in 2001, 2002 and 2003 to evaluate the effect of the simulated traffic on 110 varieties belonging to four turfgrass cool-season species: tall fescue (Festuca arundinacea Schreb., fine fescues (Festuca rubra L. ssp. rubra Gaud., ssp. commutata Gaud., ssp. tricophylla Gaud., perennial ryegrass (Lolium perenne L. and Kentucky bluegrass (Poa pratensis L.. Shoot density, visual turfgrass quality and thatch thickness were the major characters recorded to estimate wear tolerance. Traffic was simulated using a device containing three rollers pulled by a small tractor. The traffic simulator weighed 564 kg and applied a pressure of about 3 MPa. Results indicated that perennial ryegrass and tall fescue had high wear tolerance and low statistical variation among cultivars. Kentucky bluegrass showed an average wear tolerance owing to its shoot density and good recovery potential. In spite of their high shoot density, fine fescues exhibited poor wear tolerance because of their scarce resistance to high temperatures which are typical of the Mediterranean climate in late spring and summer. This study enabled a preliminary selection of the most suitable cool-season grasses and cultivars for trafficked and non-trafficked areas in Central Italy and highlighted that different turfgrass species have different wear tolerance mechanisms.

  13. Comparison of phytoremediation potential of three grass species in soil contaminated with cadmium

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    Gołda Sylwia

    2016-03-01

    Full Text Available The aim of the study was to compare the toleration of Poa pratensis, Lolium perenne and Festuca rubra to cadmium contamination as well as the phytoremediation potential of these three species of grass. The pot experiment was conducted in four replications in pots containing 2.0 kg of soil. The soil was contaminated with three doses of Cd – 30, 60 and 120 mg·kg−1. After two months, the aerial parts of plants were harvested. The roots were dug up, brushed off from the remaining soil and washed with water. The biomass was defined and the cadmium concentration was determined in aerial parts and roots. The phytoremediation potential of grasses was evaluated using biomass of grasses, bioaccumulation factor (BF and translocation factor (TF. All three tested species of grasses had TF 1. It indicates their suitability for phytostabilisation and makes them unsuitable for phytoextraction of Cd from the soil. Comparing the usefulness of the tested grasses for phytoremediation has shown that the phytostabilisation potential of P. pratensis was lower than that of L. perenne and F. rubra. P. pratensis was distinguished by higher TF, smaller root biomass and lower tolerance for Cd excess in the soil in comparison with the two other test grasses. At the same time, L. perenne was characterised by the smallest decrease in biomass and the largest Cd accumulation in roots at the lowest dose of Cd. It indicates good usefulness for phytostabilisation of soils characterised by a relatively small pollution by cadmium.

  14. Antifouling activity of twelve demosponges from Brazil

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    SM. Ribeiro

    Full Text Available Benthic marine organisms are constantly exposed to fouling, which is harmful to most host species. Thus, the production of secondary metabolites containing antifouling properties is an important ecological advantage for sessile organisms and may also provide leading compounds for the development of antifouling paints. High antifouling potential of sponges has been demonstrated in the Indian and Pacific oceans and in the Caribbean and Mediterranean seas. Brazilian sponges remain understudied concerning antifouling activities. Only two scientific articles reported this activity in sponges of Brazil. The objective of this study was to test crude extracts of twelve species of sponges from Brazil against the attachment of the mussel Perna perna through laboratorial assays, and highlight promising species for future studies. The species Petromica citrina, Amphimedon viridis, Desmapsamma anchorata, Chondrosia sp., Polymastia janeirensis, Tedania ignis, Aplysina fulva, Mycale angulosa, Hymeniacidon heliophila, Dysidea etheria, Tethya rubra, and Tethya maza were frozen and freeze-dried before extraction with acetone or dichloromethane. The crude extract of four species significantly inhibited the attachment of byssus: Tethya rubra (p = 0.0009, Tethya maza (p = 0.0039, Petromica citrina (p = 0.0277, and Hymeniacidon heliophila (p = 0.00003. These species, specially, should be the target of future studies to detail the substances involved in the ability antifouling well as to define its amplitude of action.

  15. How to make a beetle out of wood: multi-elemental stoichiometry of wood decay, xylophagy and fungivory.

    Science.gov (United States)

    Filipiak, Michał; Weiner, January

    2014-01-01

    The majority of terrestrial biomass is wood, but the elemental composition of its potential consumers, xylophages, differs hugely from that of wood. This causes a severe nutritional imbalance. We studied the stoichiometric relationships of 11 elements (C, N, P, K, Ca, Mg, Fe, Zn, Mn, Cu, Na) in three species of pine-xylem-feeding insects, Stictoleptura rubra, Arhopalus rusticus (Coleoptera, Cerambycidae) and Chalcophora mariana (Coleoptera, Buprestidae), to elucidate their mechanisms of tissue growth and to match their life histories to their dietary constraints. These beetles do not differ from other Coleoptera in their absolute elemental compositions, which are approximately 1000 (N), 100 (P, Cu) and 50 (K, Na) times higher than in dead but undecayed pine wood. This discrepancy diminishes along the wood decay gradient, but the elemental concentrations remain higher by an order of magnitude in beetles than in highly decayed wood. Numerical simulation of the life history of S. rubra shows that feeding on nutrient-poor undecayed wood would extend its development time to implausible values, whereas feeding on highly decomposed wood (heavily infected with fungi) would barely balance its nutritional budget during the long development period of this species. The changes in stoichiometry indicate that the relative change in the nutrient levels in decaying wood cannot be attributed solely to carbon loss resulting from decomposer respiration: the action of fungi substantially enriches the decaying wood with nutritional elements imported from the outside of the system, making it a suitable food for wood-eating invertebrates.

  16. Woolly hair generalizado: caso clínico e revisão da literatura Generalized woolly hair: case report and literature review

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    Tiago Torres

    2010-02-01

    Full Text Available O termo woolly hair, ou cabelo lanoso, refere-se a uma variante anormal de cabelo, que pode ser parcial ou generalizado. As variantes de woolly hair generalizado são raras e podem ocorrer isoladamente ou associadas a outras alterações cutâneas e extracutâneas. Desta forma, nestes doentes, é necessário a exclusão de certos síndromes, como o de Noonan e cardiofaciocutâneo (CFC, que cursam com importante morbilidade e mortalidade. É descrito o caso clínico de uma criança com woolly hair generalizado e queratose pilar, mas que, após avaliação dos vários órgãos e sistemas, não foi encontrada qualquer alteração ou característica associada a esses síndromes.The term woolly hair, or tightly curled hair, refers to a structural anomaly of scalp hair, which can be partial or generalized. Generalized woolly hair variants are rare and can occur in isolation or in association with other cutaneous and extra-cutaneous abnormalities. Thus, it is important to dismiss in these patients the diagnosis of syndromes such as the Noonan syndrome and Cardiofaciocutaneous syndrome, which have high morbidity and mortality rates. We report the clinical case of a 7 year-old boy with generalized woolly hair and keratosis pilaris. After an evaluation of organs and systems, no alteration or characteristics associated with these syndromes were found.

  17. Skin disorders in overweight and obese patients and their relationship with insulin.

    Science.gov (United States)

    Plascencia Gómez, A; Vega Memije, M E; Torres Tamayo, M; Rodríguez Carreón, A A

    2014-03-01

    The prevalence of obesity has increased worldwide in recent years. Some authors have described skin conditions associated with obesity, but there is little evidence on the association between insulin levels and such disorders. To describe the skin disorders present in overweight and obese patients and analyze their association with insulin levels. The study included nondiabetic male and female patients over 6 years of age who were seen at our hospital between January and April 2011. All the patients were evaluated by a dermatologist, who performed a physical examination, including anthropometry, and reviewed their medical history and medication record; fasting blood glucose and insulin were also measured. The patients were grouped according to degree of overweight or obesity and the data were compared using analysis of variance or the χ(2) test depending on the type of variable. The independence of the associations was assessed using regression analysis. In total, 109 patients (95 adults and 13 children, 83.5% female) were studied. The mean (SD) age was 38 (14) years and the mean body mass index was 39.6±8 kg/m(2). The skin conditions observed were acanthosis nigricans (AN) (in 97% of patients), skin tags (77%), keratosis pilaris (42%), and plantar hyperkeratosis (38%). Statistically significant associations were found between degree of obesity and AN (P=.003), skin tags (P=.001), and plantar hyperkeratosis. Number of skin tags, AN neck severity score, and AN distribution were significantly and independently associated with insulin levels. AN and skin tags should be considered clinical markers of hyperinsulinemia in nondiabetic, obese patients. Copyright © 2013 Elsevier España, S.L. and AEDV. All rights reserved.

  18. Erythromelanosis follicularis faciei et colli - A cross-sectional, descriptive study

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    Shagufta Rather

    2016-01-01

    Full Text Available Background: Erythromelanosis follicularis faciei et colli (EFFC has always been reported as a rare disorder, and more data are needed to define its etiology and epidemiology. Objectives: To present a descriptive study of this disorder from Kashmir and present a review of literature on the same. Materials and Methods: A cross-sectional, descriptive study was conducted on 14 patients with clinical lesions suggestive of EFFC, presenting to our dermatology outpatient clinic between May 2013 and April 2015. After obtaining informed consent from all patients, the demographic and clinical data were collected and punch biopsies were taken which after being fixed in formalin were stained for hematoxylin and eosin. The study was approved by Institutional Review Board. Results: Age of the patients ranged from 12 to 35 years with a mean age of 24.8 years. Females outnumbered males in a ratio of 1.3:1. Family history was positive in one case, and one patient had unilateral presentation. The classical triad of erythema, pigmentation, and follicular papules were present in 100% patients. Telangiectasias were observed in 28.57% patients only. Classical sites described were involved in all the cases (100%. In addition, lesions were found to involve eyebrows (28.57%, forehead (28.57%, upper lips (14.28%, and pinna (21.42%. Keratosis pilaris was present in all patients (100%; most common sites affected were upper arms and thighs. Two (14.28% had generalized distribution. Histopathology in all correlated well with clinical findings. Conclusion: EFFC has always been reported as a rare disorder, but we believe that it is not so. The reason could be either lack of awareness of the disease by the patient due to its generally asymptomatic nature or under-recognition by the physicians. Awareness about the disease on part of dermatologist and recognition of clinical presentation is important for correct diagnosis and to help find more effective therapeutic modalities.

  19. Advanced Whole-Genome Sequencing and Analysis of Fetal Genomes from Amniotic Fluid.

    Science.gov (United States)

    Mao, Qing; Chin, Robert; Xie, Weiwei; Deng, Yuqing; Zhang, Wenwei; Xu, Huixin; Zhang, Rebecca Yu; Shi, Quan; Peters, Erin E; Gulbahce, Natali; Li, Zhenyu; Chen, Fang; Drmanac, Radoje; Peters, Brock A

    2018-04-01

    Amniocentesis is a common procedure, the primary purpose of which is to collect cells from the fetus to allow testing for abnormal chromosomes, altered chromosomal copy number, or a small number of genes that have small single- to multibase defects. Here we demonstrate the feasibility of generating an accurate whole-genome sequence of a fetus from either the cellular or cell-free DNA (cfDNA) of an amniotic sample. cfDNA and DNA isolated from the cell pellet of 31 amniocenteses were sequenced to approximately 50× genome coverage by use of the Complete Genomics nanoarray platform. In a subset of the samples, long fragment read libraries were generated from DNA isolated from cells and sequenced to approximately 100× genome coverage. Concordance of variant calls between the 2 DNA sources and with parental libraries was >96%. Two fetal genomes were found to harbor potentially detrimental variants in chromodomain helicase DNA binding protein 8 ( CHD8 ) and LDL receptor-related protein 1 ( LRP1 ), variations of which have been associated with autism spectrum disorder and keratosis pilaris atrophicans, respectively. We also discovered drug sensitivities and carrier information of fetuses for a variety of diseases. We were able to elucidate the complete genome sequence of 31 fetuses from amniotic fluid and demonstrate that the cfDNA or DNA from the cell pellet can be analyzed with little difference in quality. We believe that current technologies could analyze this material in a highly accurate and complete manner and that analyses like these should be considered for addition to current amniocentesis procedures. © 2018 American Association for Clinical Chemistry.

  20. Peeling skin diseases: 21 cases from Turkey and a review of the literature.

    Science.gov (United States)

    Köse, O; Safali, M; Koç, E; Arca, E; Açikgöz, G; Özmen, I; Yeniay, Y

    2012-07-01

    Peeling skin diseases (PSD) refer to a group of rare autosomal recessive dermatosis which are characterized by spontaneous, continual peeling of the skin. Three different clinical pictures can be distinguished: Inflammatory PSD also referred to as peeling skin syndrome (PSS) type B, non-inflammatory PSD also referred to as PSS type A, and localized forms i.e. acral type PSS. To characterize the clinical and histopathological features of PSD in Turkey. We retrospectively reviewed the medical records and clinical photographs of patients who were given diagnosis of PSD and conducted histopathological evaluation of skin biopsies to identify the site of cleavage. Also we evaluated the cases including age, gender, age onset, clinical and histological findings, family history, associated disorders and PSD type. Twenty-one patients with PSD were seen at Gulhane School of Medicine in Ankara between the years 1994 and 2010 in this retrospective study. All patients were men. Their ages were between 20 and 26 years (22.44±2.30, Mean age±SD). Of the patients, eight cases (40%) were type A, eight cases (40%) were type B, and five cases (20%) were acral type PSS. Eleven cases (52%) had parental consanguinity. Keratoderma, cheilitis, keratosis pilaris, melanonichia, clubbing, hyperhidrosis, onychodystrophy were observed in eight cases as an accompanying disorder. In this case series, PSD occurred rarely and also showed generally mild course of disease in Turkey and most likely related to consanguineous of marriages. Future investigations on PSD will contribute to our progressing alternative targets for pathogenesis-based therapy. © 2011 The Authors. Journal of the European Academy of Dermatology and Venereology © 2011 European Academy of Dermatology and Venereology.

  1. RASopathic skin eruptions during vemurafenib therapy.

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    Jeannine D Rinderknecht

    Full Text Available Vemurafenib is a potent inhibitor of V600 mutant BRAF with significant impact on progression-free and overall survival in advanced melanoma. Cutaneous side effects are frequent. This single-center observational study investigates clinical and histological features of these class-specific cutaneous adverse reactions.Patients were all treated with Vemurafenib 960 mg b.i.d. within local ethic committees approved clinical trials. All skin reactions were collected and documented prospectively. Cutaneous reactions were classified by reaction pattern as phototoxic and inflammatory, hair and nail changes, keratinocytic proliferations and melanocytic disorders.Vemurafenib was well tolerated, only in two patients the dose had to be reduced to 720 mg due to arthralgia. 26/28 patients (93% experienced cutaneous side effects. Observed side effects included UVA dependent photosensitivity (n = 16, maculopapular exanthema (n = 14, pruritus (n = 8, folliculitis (n = 5, burning feet (n = 3, hair thinning (mild alopecia (n = 8, curly hair (n = 2 and nail changes (n = 2. Keratosis pilaris and acanthopapilloma were common skin reactions (n = 12/n = 13, as well as plantar hyperkeratosis (n = 4, keratoacanthoma (n = 5 and invasive squamous cell carcinoma (n = 4. One patient developed a second primary melanoma after more than 4 months of therapy (BRAF and RAS wild type.Vemurafenib has a broad and peculiar cutaneous side effect profile involving epidermis and adnexa overlapping with the cutaneous manifestations of genetic diseases characterized by activating germ line mutations of RAS (RASopathy. They must be distinguished from allergic drug reaction. Regular skin examination and management by experienced dermatologists as well as continuous prophylactic photo protection including an UVA optimized sun screen is mandatory.

  2. The role of L-DOPA on melanization and mycelial production in Malassezia furfur.

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    Sirida Youngchim

    Full Text Available Melanins are synthesized by organisms of all biological kingdoms and comprise a heterogeneous class of natural pigments. Certain of these polymers have been implicated in the pathogenesis of several important human fungal pathogens. This study investigated whether the fungal skin pathogen Malassezia furfur produces melanin or melanin-like compounds. A melanin-binding monoclonal antibody (MAb labelled in vitro cultivated yeast cells of M. furfur. In addition, melanization of Malassezia yeasts and hyphae was detected by anti-melanin MAb in scrapings from patients with pityriasis versicolor. Treatment of Malassezia yeasts with proteolytic enzymes, denaturant and concentrated hot acid yielded dark particles and electron spin resonance spectroscopy revealed that these particles contained a stable free radical compound, consistent with their identification as melanins. Malassezia yeasts required phenolic compounds, such as L-DOPA, in order to synthesize melanin. L-DOPA also triggered hyphal formation in vitro when combined with kojic acid, a tyrosinase inhibitor, in a dose-dependent manner. In this respect, L-DOPA is thought to be an essential substance that is linked to both melanization and yeast-mycelial transformation in M. furfur. In summary, M. furfur can produce melanin or melanin-like compounds in vitro and in vivo, and the DOPA melanin pathway is involved in cell wall melanization.

  3. Prevalence of skin disorders in primary and secondary school age children in Canakkale, Turkey: a community-based survey

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    Aysegul Uludağ

    2016-06-01

    Full Text Available Introduction: Skin lesions may be of dermatological importance, affect appearance, and cause problems communicating with peers and may be especially more significant in childhood. Aim :Information on the prevalence of pediatric dermatoses in Western Turkey. This study was aimed to define the existing data. Material and methods : A cross-sectional study was conducted in Canakkale, Turkey, in September-December 2013. It involved 1,957 students from five randomly selected primary and secondary schools. Each student was interviewed for age, gender, and family history, and a dermatologic examination was performed by a dermatologist. Data were coded and analyzed. Results :Of the students, 79.9% revealed at least one dermatosis. The most common disease was benign neoplasms (76%, followed by pigmentary disorders (26.8%, and xerosis (5.8%. In primary schools, the acquired melanocytic nevus, hypopigmented macule, and xerosis; in secondary school the acne was statistically significantly more common. Acne and xerosis was more common in girls, and pityriasis alba was statistically more common in boys. Students who had at least one dermatosis were positively correlated with monthly income. Conclusions :In Turkish school age children, the prevalence of dermatosis is 79.9%. It may be due to not using preventive means for adequate protection from the sun and other environmental factors. Infectious dermatosis and atopic dermatitis are rare and it may depend on the adequacy of public health work.

  4. Incidence of diseases primarily affecting the skin by age group: population-based epidemiologic study in Olmsted County, Minnesota, and comparison with age-specific incidence rates worldwide.

    Science.gov (United States)

    Wessman, Laurel L; Andersen, Louise K; Davis, Mark D P

    2018-01-29

    Understanding the effects of age on the epidemiology of diseases primarily affecting the skin is important to the practice of dermatology, both for proper allocation of resources and for optimal patient-centered care. To fully appreciate the effect that age may have on the population-based calculations of incidence of diseases primarily affecting the skin in Olmsted County, Minnesota, and worldwide, we performed a review of all relevant Rochester Epidemiology Project-published data and compared them to similar reports in the worldwide English literature. Using the Rochester Epidemiology Project, population-based epidemiologic studies have been performed to estimate the incidence of specific skin diseases over the past 50 years. In older persons (>65 years), nonmelanoma skin cancer, lentigo maligna, herpes zoster, delusional infestation, venous stasis syndrome, venous ulcer, and burning mouth syndrome were more commonly diagnosed. In those younger than 65 years, atypical nevi, psoriatic arthritis, pityriasis rosea, herpes progenitalis, genital warts, alopecia areata, hidradenitis suppurativa, infantile hemangioma, Behçet's disease, and sarcoidosis (isolated cutaneous, with sarcoidosis-specific cutaneous lesions and with erythema nodosum) had a higher incidence. Many of the incidence rates by age group of diseases primarily affecting the skin derived from the Rochester Epidemiology Project were similar to those reported elsewhere. © 2018 The International Society of Dermatology.

  5. Micosis superficiales: Candidiasis y pitiriasis versicolor

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    Rubén José Larrondo Muguercia

    2001-12-01

    Full Text Available Se exponen las características clínicas de las lesiones cutáneas en las candidiasis y la pitiriasis versicolor. Se hace hincapié en las medidas de educación, prevención y control de estas afecciones a nivel primario de atención médica. Se exponen además las diferentes maniobras terapéuticas, tanto tópicas como sistémicas, con las que se cuenta para su tratamiento, y se hace referencia a las medidas terapéuticas alternativas que brinda la medicina natural y tradicional para estas afecciones.The clinical characteristics of the skin lesions in candidiasis and pityriasis versicolor are dealth with. Emphasis is made on the measures of education, prevention and control of these affections at the primary health care level. The different topic and systematic therapeutic maneuvers to be used in the treatment are explained. Reference is made to the alternative therapeutic measures offered by traditional and natural medicine for these affections.

  6. Dermatophytes and other fungi associated with skin mycoses in Tripoli, Libya.

    Science.gov (United States)

    Ellabib, M S; Khalifa, Z; Kavanagh, K

    2002-04-01

    This study sought to determine the prevalence of skin infections and their causative agents in the Libyan population. Samples were collected from 2224 patients attending the Dermatology Clinics of the Tripoli Medical Centre (TMC) between August 1997 and December 1999 and were submitted to a mycology laboratory for analysis. Diagnosis was confirmed by microscopic examination in 1180 cases (53.1%) and the causative agent was isolated and cultured in 1160 cases (52.2%). Dermatophytes, Malassezia furfur and Candida albicans were the most common etiological agents isolated. Tinea corporis accounted for 45.9% of cases (85% of cases occurred in children below 15 years of age). The frequency of the other clinical types in descending order was pityriasis versicolor 27.8% (322 cases), candidiosis 13.4% (156 cases), tinea pedis 8.1% (94 cases), tinea manuum 2.6% (30 cases) and tinea barbae 2.2% (26 cases). Trichophyton violaceum was the most common etiological agent, responsible for 44% (300 cases) of dermatophyte infections. Malassezia furfur was ranked the second most frequent causative agent being found in 27.8% of cases, followed by Trichophyton rubrum 13.8% (160 cases) and Candida albicans 10% (116 cases). Other species isolated included Microsporum canis 8.1% (94 cases), Epidermophyton floccosum 6.6% (76 cases) and Trichophyton mentagrophytes 3.1% (36 cases).

  7. Introduction of a dermatophyte polymerase chain reaction assay to the diagnostic mycology service in Scotland.

    Science.gov (United States)

    Alexander, C L; Shankland, G S; Carman, W; Williams, C

    2011-05-01

    Dermatophytes are the major cause of superficial mycoses in samples submitted to Clinical Mycology, Glasgow. The most prevalent species is Trichophyton rubrum as identified classically by microscopy and culture. Recent advances in polymerase chain reaction (PCR) technology were examined for the feasibility of introducing a T. rubrum real-time PCR assay into a routine diagnostic service. To improve the diagnostic mycology service by the introduction of a real-time PCR test for T. rubrum. The DNA from 4972 nail and skin samples was obtained using the Qiagen QIAsymphony automated extractor. This DNA was subjected to real-time PCR using T. rubrum-specific primers and a probe. During phase 1 of the study, 862 samples were analysed; 446 of 470 specimens that grew T. rubrum were detected by PCR. Out of 4110 samples analysed during phase 2, 753 T. rubrum infections were diagnosed and reported within 72 h. A total of 3357 samples were negative for a fungal infection by PCR and microscopy; these were also reported within 72 h. A vast reduction in the turnaround times can be achieved using this technique as opposed to classical methods. Samples which are PCR negative but microscopy positive are still subjected to culture. Screening samples for their suitability for PCR prior to processing eliminates the application of PCR for T. rubrum on inappropriate samples such those from the scalp or pityriasis versicolor. © 2011 The Authors. BJD © 2011 British Association of Dermatologists.

  8. Diagnostic value of nested-PCR for identification of Malassezia species in dandruff

    Science.gov (United States)

    Jusuf, N. K.; Nasution, T. A.; Ullyana, S.

    2018-03-01

    Dandruff or pityriasis simplex is a condition of abnormal occurrence of formation of yellowish white scales from the scalp. Many factors play a role in the pathogenesis of dandruff, i.e.colonization of Malassezia species. Examination of Malassezia species previously done by culture as the gold standard. However, there are various difficulties in doing the culture. Identification method with anested-polymerase chain reaction (nested-PCR) is expected to provide quickly and easily detected. This study aimedto determine the diagnostic value of nested-PCR in the identification of Malassezia species in dandruff. From 21 subjects, scales from the scalp were taken and sent to the laboratory for nested-PCR identification. Statistical analysis of diagnostic test carried out to determine sensitivity, specificity, positive predictive value, and negative predictive value. The results showed nested-PCR detected 10 sample (47.6%) positive for Malassezia species consist of M. sympodialis (23.8%); M. slooffiae (9.5%); M. furfur (4.8%); M. globosa and M. furfur (4.8%); and M. restricta and M. sympodialis (4.8%). Detection of Malassezia species by nested-PCR has 100% in sensitivity whereas the specificity was 55%. Nested-PCR test has high sensitivity. Therefore nested-PCR may be considered for a faster and simpler alternative examination in identification for Malassezia species in dandruff.

  9. Lewandowsky and Lutz dysplasia: Report of two cases in a family

    Directory of Open Access Journals (Sweden)

    Bhawna Bhutoria

    2011-01-01

    Full Text Available Lewandowsky and Lutz dysplasia, also known as epidermodysplasia verruciformis (EV, is an inherited disorder in which there is widespread and persistent infection with human papilloma virus, defect in cell-mediated immunity and propensity for malignant transformation. Differential clinical and histopathologic evolutions of lesions in two cases of familial EV are compared and discussed in detail. Cases were followed up for 7 years. Detailed history, clinical features and investigations, including skin biopsy from different sites at different times, were examined. Generalized pityriasis versicolor like hypopigmented lesions in both the cases, together with variable pigmented nodular actinic keratosis like lesions on sun-exposed areas, were present. Multiple skin biopsies done from various sites on different occasions revealed features typical of EV along with lesions, i.e., actinic keratosis, Bowen′s disease, basal and squamous cell carcinoma, in the elder sibling. However, skin biopsy of the other sibling showed features of EV and seborrheic keratosis only till date. This study reveals that the disease progression is variable among two individuals of the same family. Malignant lesions were seen only on sun-exposed areas and may be associated with other skin lesions or infections such as angiokeratoma of Fordyce and tinea cruris, as seen in this report.

  10. Radiation therapy of psoriasis and parapsoriasis

    International Nuclear Information System (INIS)

    Wiskemann, A.

    1982-01-01

    Selective UV-Phototherapy with lambda 300-320 nm (SUP) as well as oral photochemotherapy with 8-methoxy-psoralen plus UVA-radiation (PUVA intern) are very effective in clearing the lesions of the generalized psoriasis and those of the chronic forms of parapsoriasis. Being treated with 4 suberythemal doses per week psoriasis patients are free or nearly free of symptoms after averagely 6.3 weeks of SUP-therapy or after 5.3 weeks of PUVA orally. The PUVA-therapy is mainly indicated in pustular, inverse and erythrodermic psoriasis as well as in parapsoriasis en plaques and variegata. In all other forms of psoriasis and in pityriasis lichenoides-chronica, we prefer the SUP-therapy because of less acute or chronic side effects, and because of its better practicability. X-rays are indicated in psoriais of nails, grenz-rays in superficial psoriatic lesions of the face, the armpits, the genitals and the anal region. (orig.) [de

  11. Skin infections and infestations in prison inmates.

    Science.gov (United States)

    Oninla, Olumayowa A; Onayemi, Olaniyi

    2012-02-01

    Skin infections and infestations are common in a prison environment. The prison is in dynamic equilibrium with the larger society. Hence, it serves as a reservoir of infections which can spread to the larger society. The study sets out to find out how rampant these infections might be in the prison and the factors responsible. Inmates at a Nigerian prison in Ilesha, Osun State, were examined for skin infections. Personal hygiene and living conditions were critically examined. The overall prevalent rate of infectious dermatoses was 49.2% (150/305). There were 178 infections. Dermatophytes accounted for 64%, pityriasis versicolor 27%, bacterial infections 3.4%, and others 5.6%. Only frequency of soap use and accommodation arrangement significantly contributed to the overall prevalence. However, infectious dermatoses were significantly affected by prison status (PP = 0.04), frequency of bath (PP = 0.025), changing of clothing (PP = 0.05), accommodation arrangement (P = 0.0001), frequency of soap usage (P = 0.005), and toilet facility (P = 0.001). The HIV status of the inmates was unknown. Hence, effect of HIV infection cannot be ascertained. Skin infections and infestations are common in prison. A change in living conditions and personal hygiene will definitely help in reducing these infections. © 2012 The International Society of Dermatology.

  12. A study of skin disorders in patients with primary psychiatric conditions

    Directory of Open Access Journals (Sweden)

    Kuruvila Maria

    2004-09-01

    Full Text Available BACKGROUND: The skin occupies a powerful position as an organ of communication and plays an important role in socialization throughout life. The interface between dermatology and psychiatry is complex and of clinical importance. AIMS: To document the incidence of cutaneous disorders in patients with primary psychiatric conditions. METHODS: Three hundred patients with a primary psychiatric condition who had cutaneous disease were entered into the study group. The patients were classified appropriately based on the classification of psychocutaneous disorders. The control group included 300 patients presenting with a skin disorder and without any known psychiatric complaint. RESULTS: The majority of the cases in the study group were in the 3rd-5th decade. In this study, the most common primary psychiatric conditions were manic depressive psychosis (53.33%, depression (36.33%, schizophrenia (8.33% and anxiety (2%. Of the study group, 68.66% patients had infective dermatoses and the rest had non-infective dermatoses. A high incidence of pityriasis versicolor and dermatophyte infections was noted in males from the study group. Among non-infective dermatoses, 8% had eczema, and psychogenic skin disorders were seen in 4.67% of the study group. Of these, delusions of parasitosis were the commonest (2% followed by venereophobia (1%. CONCLUSIONS: A statistically significant higher incidence of tinea versicolor and dermatophyte infections was seen in the study group. Delusion of parasitosis was the most common psychogenic skin disorder seen in the study group, followed by venereophobia.

  13. [Active search for leprosy and other skin diseases in school children from Agua de Dios, Colombia].

    Science.gov (United States)

    Rodríguez, Gerzaín; González, Rosalba; Gonzalez, Deysy; Granados, Carolina; Pinto, Rafael; Herrera, Hilda; Gutiérrez, Luisa F; Hernández, Elkin; López, Fernando; Gómez, Yenny

    2007-01-01

    Actively searching for leprosy, other skin diseases and BCG vaccination scars amongst school children from Agua de Dios, the municipality having the highest prevalence of leprosy in Colombia. A clinical examination of the children was carried out by nurses, interns, general practitioners and experts on leprosy. Skin smear tests and skin biopsies were performed when the clinical findings suggested leprosy. Anti-phenolic glycolipid antibodies in blood were determined in special cases. 86 % of the 2 844 school children were examined; 833 had skin diseases and 16 % of these required evaluation by specialists. Four new cases of paucibacillary leprosy, two indeterminate and two primary polyneuritic cases were found. Pediculosis capitis, pityriasis alba, tinea versicolor, hypopigmented nevus, insect bites and miliaria were frequently detected. BCG vaccination scars were absent in 387 children; following several logistical problems, they were vaccinated. Four children had signs of childhood abuse. An 11-year-old girl presented hypopigmented mycosis fungoides. All diseases and conditions found were treated. The community received information regarding the results, emphasising the importance of an early diagnosis of leprosy. The incidence of leprosy found (16/10,000) was 123 times higher than the rest of the country's incidence. It is advisable to continue clinical examinations in Agua de Dios and research into risk factors for acquiring leprosy.

  14. The Role of L-DOPA on Melanization and Mycelial Production in Malassezia Furfur

    Science.gov (United States)

    Youngchim, Sirida; Nosanchuk, Joshua D.; Pornsuwan, Soraya; Kajiwara, Susumu; Vanittanakom, Nongnuch

    2013-01-01

    Melanins are synthesized by organisms of all biological kingdoms and comprise a heterogeneous class of natural pigments. Certain of these polymers have been implicated in the pathogenesis of several important human fungal pathogens. This study investigated whether the fungal skin pathogen Malassezia furfur produces melanin or melanin-like compounds. A melanin-binding monoclonal antibody (MAb) labelled in vitro cultivated yeast cells of M. furfur. In addition, melanization of Malassezia yeasts and hyphae was detected by anti-melanin MAb in scrapings from patients with pityriasis versicolor. Treatment of Malassezia yeasts with proteolytic enzymes, denaturant and concentrated hot acid yielded dark particles and electron spin resonance spectroscopy revealed that these particles contained a stable free radical compound, consistent with their identification as melanins. Malassezia yeasts required phenolic compounds, such as L-DOPA, in order to synthesize melanin. L-DOPA also triggered hyphal formation in vitro when combined with kojic acid, a tyrosinase inhibitor, in a dose-dependent manner. In this respect, L-DOPA is thought to be an essential substance that is linked to both melanization and yeast-mycelial transformation in M. furfur. In summary, M. furfur can produce melanin or melanin-like compounds in vitro and in vivo, and the DOPA melanin pathway is involved in cell wall melanization. PMID:23762233

  15. Wide Ranging Insect Infestation of the Pioneer Mangrove Sonneratia alba by Two Insect Species along the Kenyan Coast.

    Directory of Open Access Journals (Sweden)

    Elisha Mrabu Jenoh

    Full Text Available Insect infestation of mangroves currently threatens mangrove forest health and management. In the Western Indian Ocean region, little is known about insect damage to mangroves despite the fact that numerous infestations have occurred. In Kenya, infestations of Sonneratia alba have persisted for almost two decades, yet the taxonomic identity of the infesting pest(s, the extent of infestation, the pests' biology, the impacts of infestation on host and the ecosystem, the host's defensive strategies to the infestation are poorly understood. S. alba is a ubiquitous, pioneer mangrove species of the Indo-Pacific, occurring along the waterfront in a variety of mangrove ecosystem settings. Our main objectives were to identify the pest(s responsible for the current dieback of S. alba in Kenya, and to determine the extent of infestation. To identify the pests responsible for infestation, we trapped emergent insects and reared larvae in the laboratory. To determine the overall extent of infestation within the S. alba zone, we assessed nine sites along the entire Kenyan coastline for the presence or absence of infested mangroves. Insect infestation in two mangrove embayments (Gazi and Mida was quantified in depth. Two wood-boring insects were identified: a metarbelid moth (Lepidoptera, Cossoidea of undescribed genus and the beetle Bottegia rubra (Cerambycidae, Lamiinae.The metarbelid moth infests mangroves in both northern (from Ngomeni to Kiunga and southern regions (from Vanga to Mtwapa of the Kenyan coast. B. rubra appeared in low density in Gazi, and in high density in Mida, Kilifi, and Ngomeni, with densities gradually decreasing northward. Insect infestation levels reached 18% in Gazi and 25% of S. alba stands in Mida. Our results indicate that B. rubra has the ability to infest young mangrove trees and expand its range, posing a danger to rehabilitation efforts where plantations have been established. Thus, there is great need for forest managers to

  16. Gold and arsenic concentrations in plants as an indication of gold mineralisation

    International Nuclear Information System (INIS)

    Girling, C.A.; Peterson, P.J.; Minski, M.J.

    1978-01-01

    A range of plant species growing on derelict gold mines and a lead-silver mine (background site) in Merionethshire, Wales, United Kingdom, was analysed simultaneously for Au and As by neutron activation analysis. The γ-emitting 198 Au and 76 As isotopes were determined in dried compact plant material following irradiation. Many plant species collected from the gold mines contained Au concentrations significantly above background values, but the extent of Au accumulation varied between and within species. Grasses, and herbs associated with the equatic environment contained the most Au, the highest value recorded was 95 ppb (dry weight) in the leaves of the grass Festuca rubra L. Species which contained high concentrations of Au also contained high concentrations of As. (Auth.)

  17. Antimicrobial Activity of Six Pomegranate (Punica granatum L. Varieties and Their Relation to Some of Their Pomological and Phytonutrient Characteristics

    Directory of Open Access Journals (Sweden)

    Nurcan Erbil

    2009-05-01

    Full Text Available Arils from six pomegranate (Punica granatum L. varieties grown in the Mediterranean region of Turkey were tested for their antimicrobial properties by the agar diffusion and minimum inhibitory concentration (MIC methods against seven bacteria: (Bacillus megaterium DSM 32, Pseudomonas aeruginosa DSM 9027, Staphylococcus aureus Cowan 1, Corynebacterium xerosis UC 9165, Escherichia coli DM, Enterococcus faecalis A10, Micrococcus luteus LA 2971, and threefungi (Kluvyeromyces marxianus A230, Rhodotorula rubra MC12, Candida albicans ATCC 1023. It has been observed that the pomegranate aril extracts had antimicrobial effect on all microorganisms, giving inhibition zones ranging in size from 13 to 26 mm. The MIC values for active pomegranate extracts ranged between 30 and >90 µg/mL. The results obtained appeared to confirm the antimicrobial potential of the Punica granatum varieties.

  18. Determining inhibition effects of some aromatic compounds on peroxidase enzyme purified from white and red cabbage

    Energy Technology Data Exchange (ETDEWEB)

    Öztekin, Aykut, E-mail: aoztekin@agri.edu.tr [Ataturk University, Science Faculty, Department of Chemistry, 25240-Erzurum (Turkey); Agri Ibrahim Cecen University Faculty of Arts and Sciences, Department of Chemistry, 04100-Agri (Turkey); Almaz, Züleyha, E-mail: zturkoglu-2344@hotmail.com [Ataturk University, Science Faculty, Department of Chemistry, 25240-Erzurum (Turkey); Mus Alparslan University Faculty of Sciences, Department of Moleculer Biology, 49250-Mus (Turkey); Özdemir, Hasan, E-mail: hozdemir@atauni.edu.tr [Ataturk University, Science Faculty, Department of Chemistry, 25240-Erzurum (Turkey)

    2016-04-18

    Peroxidases (E.C.1.11.1.7) catalyze the one electron oxidation of wide range of substrates. They are used in synthesis reaction, removal of peroxide from industrial wastes, clinical biochemistry and immunoassays. In this study, the white cabbage (Brassica Oleracea var. capitata f. alba) and red cabbage (Brassica oleracea L. var. capitata f. rubra) peroxidase enzymes were purified for investigation of inhibitory effect of some aromatic compounds on these enzymes. IC{sub 50} values and Ki constants were calculated for the molecules of 6-Amino nicotinic hydrazide, 6-Amino-5-bromo nicotinic hydrazide, 2-Amino-5-hydroxy benzohydrazide, 4-Amino-3-hydroxy benzohydrazide on purified enzymes and inhibition type of these molecules were determined. (This research was supported by Ataturk University. Project Number: BAP-2015/98).

  19. Seasonal changes of peroxidase and catalase activities in leaves of several arborescent species subject to different industrial air pollutions in Upper Silesia

    Energy Technology Data Exchange (ETDEWEB)

    Raczek, E.; Stolarek, J.

    1979-01-01

    Year-round investigations of seasonal patterns of peroxidase and catalase activities in leaves of several deciduous and coniferous arborescent species in forests of Upper Silesia subjected to various amounts of industrial gases and dusts were carried out. The samples of leaves of Betula verrucosa EHRH, Quercus robur L., Q. rubra L., Pinus nigra ARNOLD, and P. silvestris L. were collected at different distances from an iron smelting plant. It was found that raising level of the pollution enhances peroxidase activity in leaves and needles. The induction of peroxidase activity by pollutants exhibited seasonal changes specific for the species and was subjected to the effect of temperature of the environment and was also related to the natural resistivity of a given species. In contrast to peroxidase, the patterns of catalase activity changes did not appear to be specifically influenced by industrial air pollutants. 22 references, 5 figures, 4 tables.

  20. Vehicle-mounted net sampling of airborne micro-Heteroptera in western Liberia, West Africa: 1. Isometopinae (Miridae).

    Science.gov (United States)

    KrÜger, Andreas

    2018-02-11

    A vehicle-mounted "car-net" is a rarely used technique of insect sampling. In Liberia, it was used over several consecutive months, and the first results of taxonomic analyses of Heteroptera from the by-catch are presented, namely on the mirid subfamily Isometopinae ("jumping tree bugs"). So far, no isometopine species have been known from Liberia.        New records of Isometopinae in Liberia are provided including: Isometopus slateri (Akingbohungbe), Myiomma cobbeni Akingbohungbe, M. rubra Smith, and M. rubrovenata Smith. Additional new species are described, including: Isometopus bongensis sp. nov., Paloniella garmsi sp. nov., P. erinacea sp. nov., Ptisca liberiense sp. nov., Myiomma albostiolata sp. nov., M .brunnea sp. nov., M. fuscipes sp. nov., M. goellneri sp. nov. and M. variabilis sp. nov. A new genus with one included species is similarly described as follows: Bongiella nodistylis gen. nov. et sp. nov.

  1. Malignancies in blood-forming organs following diagnostic and therapeutic procedures: a review

    International Nuclear Information System (INIS)

    Hodgin, J.D.; Webster, P.D.

    1976-01-01

    Ionizing radiation used for diagnosis or therapy has been associated with an increased incidence of malignancies of blood-forming organs. The increased incidence of hematopoietic malignancies following exposure to ionizing radiation obtained in the course of occupation, diagnosis and therapy of disease, or as a weapon of war is documented. The natural occurrence and the induced progression to acute leukemia of polycythemia rubra vera, Hodgkin's disease, multiple myeloma, Di Guglielmo's disease, and reticuloendothelial malignancies are discussed. The status of transplantation and immunodeficiency states and their relationship to acute leukemia is reviewed. Finally, drugs, toxins, and the use of cytotoxic radiomimetic agents for nonmalignant purposes are shown to lead to the development of acute leukemia. Background information relevant to the proper use of future diagnostic and therapeutic modalities is provided

  2. Review of the genus Signoretia (Hemiptera: Cicadellidae: Signoretiinae) of the Oriental region with description of nine new species.

    Science.gov (United States)

    Viraktamath, C A

    2016-11-17

    Species of Signoretia Stål from the Oriental region are reviewed and types of five species described by Baker, two species described by Distant and one species described by Schmidt are illustrated. A checklist of 20 species of the genus from the Oriental region including 9 new species is given. The new species described and illustrated are Signoretia dulitensis sp. nov. (Malaysia: Mt Dulit), S. lunglei sp. nov. (India: Mizoram), S. mishmiensis sp. nov. (Myanmar: Mishmi Hills), S. quoinensis sp. nov. (Malaysia: Quoin Hill), S. rubra sp. nov. (Thailand: Chiang Mai), S. sahyadrica sp. nov. (India: Kerala), S. similaris sp. nov. (Vietnam: Fyan), S. sinuata sp. nov. (India: West Bengal) and S. takiyae sp. nov. (India: Andaman Is.). Both S. aureola Distant and S. maculata Baker are redescribed and illustrated. Lectotypes are designated for S. greeni Distant and S. aureola Distant.

  3. Distribution and Ecology of Clathrus archeri in Romania

    Directory of Open Access Journals (Sweden)

    Cipran BÎRSAN

    2014-09-01

    Full Text Available Although Clathrus archeri is a widely spread species in the Western Europe, in Romania it is considered a rare species, identified from only eight sites. In July 2013, it was found in two new sites from Gurghiu and Bârgău Mountains, in the Romanian Eastern Carpathians. This paper presents a detailed description of the new recorded specimens and of the habitat where this fungus was found. Plant communities where Clathrus archeri was recorded belong to the “mountain hay meadows” habitat type (Festuco rubrae - Agrostietum capillaris community. Taking into consideration the previous published data, the comparison with other habitats types in which this species occurs suggests that Clathrus archeri has no special preferences for certain environmental conditions.

  4. Determining inhibition effects of some aromatic compounds on peroxidase enzyme purified from white and red cabbage

    Science.gov (United States)

    Öztekin, Aykut; Almaz, Züleyha; Özdemir, Hasan

    2016-04-01

    Peroxidases (E.C.1.11.1.7) catalyze the one electron oxidation of wide range of substrates. They are used in synthesis reaction, removal of peroxide from industrial wastes, clinical biochemistry and immunoassays. In this study, the white cabbage (Brassica Oleracea var. capitata f. alba) and red cabbage (Brassica oleracea L. var. capitata f. rubra) peroxidase enzymes were purified for investigation of inhibitory effect of some aromatic compounds on these enzymes. IC50 values and Ki constants were calculated for the molecules of 6-Amino nicotinic hydrazide, 6-Amino-5-bromo nicotinic hydrazide, 2-Amino-5-hydroxy benzohydrazide, 4-Amino-3-hydroxy benzohydrazide on purified enzymes and inhibition type of these molecules were determined. (This research was supported by Ataturk University. Project Number: BAP-2015/98).

  5. Determining inhibition effects of some aromatic compounds on peroxidase enzyme purified from white and red cabbage

    International Nuclear Information System (INIS)

    Öztekin, Aykut; Almaz, Züleyha; Özdemir, Hasan

    2016-01-01

    Peroxidases (E.C.1.11.1.7) catalyze the one electron oxidation of wide range of substrates. They are used in synthesis reaction, removal of peroxide from industrial wastes, clinical biochemistry and immunoassays. In this study, the white cabbage (Brassica Oleracea var. capitata f. alba) and red cabbage (Brassica oleracea L. var. capitata f. rubra) peroxidase enzymes were purified for investigation of inhibitory effect of some aromatic compounds on these enzymes. IC_5_0 values and Ki constants were calculated for the molecules of 6-Amino nicotinic hydrazide, 6-Amino-5-bromo nicotinic hydrazide, 2-Amino-5-hydroxy benzohydrazide, 4-Amino-3-hydroxy benzohydrazide on purified enzymes and inhibition type of these molecules were determined. (This research was supported by Ataturk University. Project Number: BAP-2015/98).

  6. Therapy with radionuclides

    International Nuclear Information System (INIS)

    Biersack, H.J.; Hotze, A.L.

    1992-01-01

    Radioiodine therapy of benign and malignant thyroid diseases is a well-established procedure in Nuclear Medicine. However, the therapeutic use of radioisotopes in other diseases is relatively unknown among our refering physicians. The therapeutic effects of intraarticular (rheumatoid arthritis) and intracavitary (pleural and peritoneal carcinosis) applications yields good results. The radiophosphorus therapy in polycythemia vera rubra has always to be considered as an alternative to chemotherapy. The use of analgetics may be reduced by pain therapy of bone metastasis by injection of bone-seeking beta emitters like Rh-186 HEDP. Other procedures like therapeutic application of meta-iodo-benzylguanidine in neuroblastoma and malignant pheochromocytoma resulted in at least remissions of the disease. Radioimmunotherapy needs further evaluation before it can be recommended as a routine procedure. (orig.) [de

  7. Survival and growth of parasitic Maculinea alcon caterpillars (Lepidoptera: Lycaenidae) in nests of three Myrmica ant species

    DEFF Research Database (Denmark)

    Nash, D. R.; Als, Thomas Damm; Boomsma, J. J.

    2011-01-01

    The Alcon blue butterfly (Maculinea alcon) parasitizes the nests of several Myrmica ant species. In Denmark, it uses M. rubra and M. ruginodis, but never M. scabrinodis. To further examine the basis of this specificity and local co-adaptation between host and parasite, the pattern of growth...... and survival of newly-adopted caterpillars of M. alcon in Myrmica subcolonies was examined in the laboratory. M. alcon caterpillars were collected from three populations differing in their host use, and reared in laboratory nests of all three ant species collected from each M. alcon population. While...... there were differences in the pattern of growth of caterpillars from different populations during the first few months after adoption, which depended on host ant species and the site from which the ants were collected, there was no evidence of major differences in final size achieved. Survival was, however...

  8. Geographical variation in host-ant specificity of the parasitic butterfly Maculinea alcon in Denmark

    DEFF Research Database (Denmark)

    Als, Thomas Damm; Nash, David Richard; Boomsma, J. J.

    2002-01-01

    1. Maculinea alcon uses three different species of Myrmica host ants along a north-south gradient in Europe. Based on this geographical variation in host ant use, Elmes et al. (1994) suggested that M. alcon might consist of three or more cryptic species or host races, each using a single...... and different host-ant species.2. Population-specific differences in allozyme genotypes of M. alcon in Denmark (Gadeberg Boomsma, 1997) have suggested that genetically differentiated forms may occur in a gradient across Denmark, possibly in relation to the use of different host ants.3. It was found that two...... host-ant species are indeed used as hosts in Denmark, but not in a clear-cut north-south gradient. Furthermore, specificity was not complete for many M. alcon populations. Of five populations investigated in detail, one used primarily M. rubra as a host, another exclusively used M. ruginodis, while...

  9. Factors affecting distribution of wood, detritus, and sediment in headwater streams draining managed young-growth red alder - Conifer forests in southeast Alaska

    Science.gov (United States)

    Gomi, T.; Johnson, A.C.; Deal, R.L.; Hennon, P.E.; Orlikowska, E.H.; Wipfli, M.S.

    2006-01-01

    Factors (riparian stand condition, management regimes, and channel properties) affecting distributions of wood, detritus (leaves and branches), and sediment were examined in headwater streams draining young-growth red alder (Alnus rubra Bong.) - conifer riparian forests (40 years old) remained in channels and provided sites for sediment and organic matter storage. Despite various alder-conifer mixtures and past harvesting effects, the abundance of large wood, fine wood, and detritus accumulations significantly decreased with increasing channel bank-full width (0.5-3.5 m) along relatively short channel distances (up to 700 m). Changes in wood, detritus, and sediment accumulations together with changes in riparian stand characteristics create spatial and temporal variability of in-channel conditions in headwater systems. A component of alder within young-growth riparian forests may benefit both wood production and biological recovery in disturbed headwater stream channels. ?? 2006 NRC.

  10. Invasive alien plants in protected areas within city borders, LODZ (poland)

    International Nuclear Information System (INIS)

    Anna, B.; Grzegorz, W.J.; Krason, K.

    2017-01-01

    The aim of the study was to present the occurrence of invasive alien plant species in two forest reserves: "Las Lagiewnicki"and "Polesie Konstantynowskie", located within the city of Lodz (Central Poland). Currently, five vascular plants (Impatiens parviflora, Juncus tenuis, Padus serotina, Quercus rubra, Robinia pseudoacacia) and one moss (Orthodontium lineare) considered as invasive were found in the studied reserves. Invasive plant species accounted for a small percentage of the flora in the studied reserves, and their sites were mainly concentrated in areas transformed by human activity. The most common species were Impatiens parviflora and Padus serotina. Due to the location of the reserves within city borders and the proven negative effect of the found species on ecological systems, their sites should be monitored. (author)

  11. Uptake, transport and persistence of 14C yeast mannans in plants

    International Nuclear Information System (INIS)

    Kovalenko, A.G.; Kluge, S.

    1988-01-01

    Low-molecular branched-chain 14 C-mannan from Candida tropicalis and high-molecular linear 14 C-mannan from Rhodotorula rubra are not taken up by intact plants. Mechanical injury of plants is a prerequisite for the uptake and transport of polysaccharides in plant tissues. Mannans injected through the epidermis into the parenchyma of tobacco leaves remain mostly confined to the place of injection or to the respective intercostal field. The presence of dimethyl sulfoxide in the solution stimulates the uptake of mannans through intact roots of tobacco, thorn apple and potato plants. Mannans injected in the intercellular space of the parenchyma tissue of tobacco leaves maintain their polymeric structure for at least five days, which almost corresponds with the duration of their antiviral activity in the plants. These results suggest the antiphytoviral activity in fact to be due to the mannans or to principles stimulated by them rather than to their catabolites. (author)

  12. Folklore information from Assam for family planning and birth control.

    Science.gov (United States)

    Tiwari, K C; Majumder, R; Bhattacharjee, S

    1982-11-01

    The author collected folklore information on herbal treatments to control fertility from different parts of Assam, India. Temporary methods of birth control include Cissampelos pareira L. in combination with Piper nigrum L., root of Mimosa pudica L. and Hibiscus rosa-sinensis L. Plants used for permanent sterilization include Plumbago zeylanica L., Heliotropium indicum L., Salmalia malabrica, Hibiscus rosa-sinensis L., Plumeria rubra L., Bambusa rundinacea. Abortion is achieved through use of Osbeckia nepalensis or Carica papaya L. in combination with resin from Ferula narthex Boiss. It is concluded that there is tremendous scope for the collection of folklore about medicine, family planning agents, and other treatments from Assam and surrounding areas. Such a project requires proper understanding between the survey team and local people, tactful behavior, and a significant amount of time. Monetary rewards can also be helpful for obtaining information from potential respondents.

  13. Comparison of three inert markers in measuring apparent nutrient digestibility of juvenile abalone under different culture condition and temperature regimes

    Science.gov (United States)

    Nur, K. U.; Adams, L.; Stone, D.; Savva, N.; Adams, M.

    2018-03-01

    A comparative research using three inert markers, chromic oxide, yttrium and ytterbium to measure the apparent nutrient digestibility of experimental feed in juvenile Hybrid abalone (Haliotis rubra X H. laevigata) and Greenlip abalone (H.laevigata) revealed that apparent digestibility of crude protein (ADCP) measured using yttrium and ytterbium in hybrid abalone were significantly different across the treatments. Protein digestibility measured in experimental tanks was higher than those measured in indoor and outdoor commercial tanks, regardless of inert marker used. Chromic oxide led to overestimated ADCP compared to when measured using yttrium and ytterbium. There were no significant interactions between temperature and inert markers when measuring ADCP and apparent digestibility of gross energy (ADGE). However, there was a significant difference of ADCP amongst inert markers when measured in greenlip abalone cultured at two temperatures. While measurements of ADge calculated using three inert markers shared the same value.

  14. Efficacy of Biosolids in Assisted Phytostabilization of Metalliferous Acidic Sandy Soils with Five Grass Species

    Science.gov (United States)

    Kacprzak, Malgorzata; Grobelak, Anna; Grosser, Anna; Prasad, M. N. V.

    2013-01-01

    The role of sewage sludge as an immobilising agent in the phytostabilization of metal-contaminated soil was evaluated using five grass species viz., Dactylis glomerata L., Festuca arundinacea Schreb., F. rubra L., Lolium perenne L., L. westerwoldicum L. The function of metal immobilization was investigated by monitoring pH, Eh and Cd, Pb, and Zn levels in column experiment over a period of 5-months. Grasses grown on sewage sludge-amendments produced high biomass in comparison to controls. A significant reduction in metal uptake by plants was also observed as a result of sewage sludge application, which was attributed to decreased bioavailability through soil stabilisation. We have observed that the sludge amendment decreased metal bioavailability and concentrations in soil at a depth of 25 cm, in contrast to untreated columns, where metal concentrations in the soil solution were very high. PMID:24912245

  15. The Potential Benefits of Red Beetroot Supplementation in Health and Disease

    Directory of Open Access Journals (Sweden)

    Tom Clifford

    2015-04-01

    Full Text Available In recent years there has been a growing interest in the biological activity of red beetroot (Beta vulgaris rubra and its potential utility as a health promoting and disease preventing functional food. As a source of nitrate, beetroot ingestion provides a natural means of increasing in vivo nitric oxide (NO availability and has emerged as a potential strategy to prevent and manage pathologies associated with diminished NO bioavailability, notably hypertension and endothelial function. Beetroot is also being considered as a promising therapeutic treatment in a range of clinical pathologies associated with oxidative stress and inflammation. Its constituents, most notably the betalain pigments, display potent antioxidant, anti-inflammatory and chemo-preventive activity in vitro and in vivo. The purpose of this review is to discuss beetroot’s biological activity and to evaluate evidence from studies that specifically investigated the effect of beetroot supplementation on inflammation, oxidative stress, cognition and endothelial function.

  16. A mosaic of chemical coevolution in a large blue butterfly

    DEFF Research Database (Denmark)

    Nash, David R; Als, Thomas D; Maile, Roland

    2008-01-01

    Mechanisms of recognition are essential to the evolution of mutualistic and parasitic interactions between species. One such example is the larval mimicry that Maculinea butterfly caterpillars use to parasitize Myrmica ant colonies. We found that the greater the match between the surface chemistry...... of Maculinea alcon and two of its host Myrmica species, the more easily ant colonies were exploited. The geographic patterns of surface chemistry indicate an ongoing coevolutionary arms race between the butterflies and Myrmica rubra, which has significant genetic differentiation between populations......, but not between the butterflies and a second, sympatric host, Myrmica ruginodis, which has panmictic populations. Alternative hosts may therefore provide an evolutionary refuge for a parasite during periods of counteradaptation by their preferred hosts. Udgivelsesdato: 2008-Jan-4...

  17. Host exploitation strategies of the social parasite Maculinea alcon

    DEFF Research Database (Denmark)

    Fürst, Matthias Alois

    as model systems. These enable the study of adaptations and counter-adaptations that might evolve in the arms-race between a parasite pursuing maximum gain and a host trying to avoid exploitation. One such system is the socially parasitic butterfly Maculinea alcon and its host the ant Myrmica rubra....... Throughout the first instars M. alcon lives on a specific food plant, however, in the last instar before pupation it develops into an obligate social parasite, posing a considerably cost to its host ant colony. I here focus on the different exploitation strategies of M. alcon throughout its lifecycle...... a fitness cost to infected host ant colonies, the host ants are expected to have developed defense mechanisms in response to the presence of the social parasite. I was able to demonstrate that the efficiency of ant colonies to defend themselves against intruders depends on a multitude of often correlated...

  18. Notes florístiques de les conques altes dels rius Segre i Llobregat. IV

    OpenAIRE

    Aymerich, Pere

    2016-01-01

    En aquest treball es fan aportacions i precisions a la flora regional de les conques superiors dels rius Segre i Llobregat (Pirineus orientals), en gran part referides a tàxons al·lòctons.Pel que fa a tàxons autòctons, destaquem que Oxybasis rubra és novetat per a la flora de Catalunya, i que per primera vegada s’ofereix informació detallada sobre l’única població coneguda als Pirineus de Myosotis minutiflora. En relació amb els tàxons al·lòctons, és remarcable la detecció de poblacions de Ca...

  19. Direct seeding woody species for restoration of bottomlands

    Science.gov (United States)

    Twedt, D.J.; Connor, Kristina F

    2006-01-01

    I direct seeded (broadcast) seeds of 39 species of trees and shrubs using an ATV-mounted rotary spreader to initiate restoration of bottomland forest on retired agricultural sites. Four sites were planted during February, 2000, and 13 additional sites were planted during April and May, 2001. After two growing seasons, stem density of direct-seeded species varied greatly among study plots (range = 0 to 888 stems/ha) but averaged only 110 stems/ha. I recommend that future efforts at direct seeding focus on seven shrub species (Amorpha fruticosa L., Cephalanthus occidentalis L., Cornus spp., Crataegus spp., Ilex decidua Walt., Morus rubra L., and Prunus spp.) and seven tree species (Celtis laevigata Willd., Diospyros virginiana L., Fraxinus spp., Gleditsia triacanthos L., Robinia pseudoacacia L., Taxodium distichum (L.) Rich, and Ulmus spp.) that successfully established in these trials.

  20. Notes florístiques de les conques altes dels rius Segre i Llobregat. IV

    OpenAIRE

    Aymerich, Pere

    2016-01-01

    En aquest treball es fan aportacions i precisions a la flora regional de les conques superiors dels rius Segre i Llobregat (Pirineus orientals), en gran part referides a tàxons al·lòctons. Pel que fa a tàxons autòctons, destaquem que Oxybasis rubra és novetat per a la flora de Catalunya, i que per primera vegada s’ofereix informació detallada sobre l’única població coneguda als Pirineus de Myosotis minutiflora. En relació amb els tàxons al·lòctons, és remarcable la detecció de poblacions de C...

  1. Tissue distribution and tumour localization of 99m-technetium-labelled liposomes in cancer patients

    Energy Technology Data Exchange (ETDEWEB)

    Richardson, V J; Ryman, B E; Jewkes, R F; Jeyasingh, K; Tattersall, M N.H.; Newlands, E S; Kaye, S B

    1979-07-01

    The possible use of liposomes (Phospholipid vesicles) to direct cytotoxic drugs to tumours led to the investigation of the tissue localization of i.v. injected sup(99m) Tc-labelled liposomes in cancer patients. 20 mg or 300 mg doses of liposomal lipid (7:2:1 molar ratio of phosphatidylcholine: cholesterol: phosphatidic acid) were used in a study of 13 patients with advanced cancer and one with polycythaemia rubra vera (PRV). In all cases except the patient with PRV the major site of uptake of the label was the liver and spleen. In the patient with PRV the liver uptake was greatly reduced and the major site of uptake was found in regions corresponding to marrow. With the exception of one patient with a primary hepatoma, there was no significant tumour uptake of the label.

  2. Pathogenicity of the bioherbicide fungus chondrostereum purpureum to some trees and shrubs of southern Vancouver Island. FRDA report No. 246

    Energy Technology Data Exchange (ETDEWEB)

    Wall, R.E.

    1996-11-01

    Chondrostereum purpureum is a common stem-invading fungus of trees and shrubs. The fungus has attracted interest as a bioherbicide, but a better understanding of its biology is required. This study was undertaken to determine the range of virulence of isolates of C. purpureum from a given region on major hardwood species in British Columbia. The investigators inoculated wounds of stems of standing red alder (Alnus rubra) and bigleaf maple (Acer macrophyllum) saplings with 11 isolates of the fungus and measured the resulting stem cankers as an index of virulence. They also inoculated eight hardwood and shrub species with two isolates to demonstrate the range of susceptibility of species to the fungus, as well as the intraspecific variation.

  3. Therapy with radionuclides. Radionuklid-Therapie

    Energy Technology Data Exchange (ETDEWEB)

    Biersack, H.J.; Hotze, A.L. (Bonn Univ. (Germany). Klinik fuer Nuklearmedizin)

    1992-12-01

    Radioiodine therapy of benign and malignant thyroid diseases is a well-established procedure in Nuclear Medicine. However, the therapeutic use of radioisotopes in other diseases is relatively unknown among our refering physicians. The therapeutic effects of intraarticular (rheumatoid arthritis) and intracavitary (pleural and peritoneal carcinosis) applications yields good results. The radiophosphorus therapy in polycythemia vera rubra has always to be considered as an alternative to chemotherapy. The use of analgetics may be reduced by pain therapy of bone metastasis by injection of bone-seeking beta emitters like Rh-186 HEDP. Other procedures like therapeutic application of meta-iodo-benzylguanidine in neuroblastoma and malignant pheochromocytoma resulted in at least remissions of the disease. Radioimmunotherapy needs further evaluation before it can be recommended as a routine procedure. (orig.).

  4. The JAK2 V617F allele burden in essential thrombocythemia, polycythemia vera and primary myelofibrosis

    DEFF Research Database (Denmark)

    Larsen, Thomas Stauffer; Pallisgaard, Niels; Møller, Michael Boe

    2007-01-01

    BACKGROUND AND OBJECTIVES: The JAK2 V617F tyrosine kinase mutation is present in the great majority of patients with polycythemia vera (PV), and approximately half of the patients with essential thrombocythemia (ET) and primary myelofibrosis (PMF). The three distinct disease entities may be consi......BACKGROUND AND OBJECTIVES: The JAK2 V617F tyrosine kinase mutation is present in the great majority of patients with polycythemia vera (PV), and approximately half of the patients with essential thrombocythemia (ET) and primary myelofibrosis (PMF). The three distinct disease entities may...... = 0.03), CD34 counts (P = 0.03), lactate dehydrogenase and Polycythemia Rubra Vera gene 1 levels (P = 0.03 and P

  5. The Evolution of Exploitation Strategies by Myrmecophiles

    DEFF Research Database (Denmark)

    Schär, Sämi

    than outside ant nests (M. rubra) as well. This fungus can kill ant associated lycaenid larvae, justifying the assumption that these benefit from the entomopathogen poor environment of ant nests. This could explain why natural selection may act in favour of this strategy. In the third chapter I......Myrmecophiles are animals which have evolved to live in the nests of ants. This life history strategy appears in animals as different as insects, spiders, snails, crustaceans and even snakes. Myrmecophiles are very speciose with estimates of up to 100'000 species, which raises the question why...... this strategy has evolved so frequently and is maintained by natural selection. The type of association between Myrmecophiles and ants ranges from mutualistic through to parasitic. These types of symbioses can also be found between and within species of ants. Ant associations can therefore be broadly...

  6. Biological reduction of dust nuisance on power station waste dumps

    Energy Technology Data Exchange (ETDEWEB)

    Kozel, J

    1978-01-01

    The results of pot trials and succeeding field trials carried out in 1966-72 to find out the best method of reclamationand stabilishing the fly ash and cinder waste dump at the Melnik power station are summarised. The material consists mainly of fine particles with a size range of less than 1 micron to 0.16 mm in diam., and creates a source of blown dust in dry weather. Treatment of the waste material before sowing grass and legume species, the species tested, sowing rates, applied fertilizers, irrigation and treatment of the resulting swards are discussed. The most suitable species were Festuca rubra, F. ovina, perennial ryegrass and Italian ryegrass; the cost of stabilising the dump was lowest with Italian ryegrass. (In English)

  7. Regulace produkce obohacené biomasy a lipidických látek u karotenogenních kvasinek

    OpenAIRE

    Hároniková, Andrea

    2008-01-01

    Karotenoidy predstavujú jednu z najrozšírenejších a najpočetnejších tried prirodzených pigmentov s významnými biologickými účinkami. V posledných rokoch sa intenzívne študuje mikrobiologická produkcia karotenoidov pred syntetickou výrobou. Táto práca bola poňatá ako zrovnávacia štúdia troch druhov kvasiniek, a to Rhodotorula glutinis, Rhodotorula rubra a Sporobolomyces roseus. Kvasinky boli kultivované na rôznych živných médiách, kde sa ako nutričné zdroje používali vybrané odpadové materiály...

  8. Root phenology at Harvard Forest and beyond

    Science.gov (United States)

    Abramoff, R. Z.; Finzi, A.

    2013-12-01

    Roots are hidden from view and heterogeneously distributed making them difficult to study in situ. As a result, the causes and timing of root production are not well understood. Researchers have long assumed that above and belowground phenology is synchronous; for example, most parameterizations of belowground carbon allocation in terrestrial biosphere models are based on allometry and represent a fixed fraction of net C uptake. However, using results from metaanalysis as well as empirical data from oak and hemlock stands at Harvard Forest, we show that synchronous root and shoot growth is the exception rather than the rule. We collected root and shoot phenology measurements from studies across four biomes (boreal, temperate, Mediterranean, and subtropical). General patterns of root phenology varied widely with 1-5 production peaks in a growing season. Surprisingly, in 9 out of the 15 studies, the first root production peak was not the largest peak. In the majority of cases maximum shoot production occurred before root production (Offset>0 in 32 out of 47 plant sample means). The number of days offset between maximum root and shoot growth was negatively correlated with median annual temperature and therefore differs significantly across biomes (ANOVA, F3,43=9.47, pGrowth form (woody or herbaceous) also influenced the relative timing of root and shoot growth. Woody plants had a larger range of days between root and shoot growth peaks as well as a greater number of growth peaks. To explore the range of phenological relationships within woody plants in the temperate biome, we focused on above and belowground phenology in two common northeastern tree species, Quercus rubra and Tsuga canadensis. Greenness index, rate of stem growth, root production and nonstructural carbohydrate content were measured beginning in April 2012 through August 2013 at the Harvard Forest in Petersham, MA, USA. Greenness and stem growth were highest in late May and early June with one clear

  9. Purafil-filtration prevents the development of ozone-induced frost injury: A potential role for nitric oxide

    Science.gov (United States)

    Neighbour, E. A.; Pearson, M.; Mehlhorn, H.

    The relationship between exposure to ozone in the summer and the subsequent development of frost hardiness in the autumn was evaluated in recent experiments with red spruce ( Picea rubens Sarg. Syn. P. rubra). When O 3 was added to air filtered only through charcoal (contaminated with nitric oxide (NO)), frost sensitivity in late autumn was increased as measured by conductivity from electrocyte leakage. However, when O 3 was added to air filtered through charcoal and Purafil (no NO), no enhancement of frost sensitivity was found. A possible explanation of this difference, involving the chain-propagating property of NO in the O 3-initiated oxidation of unsaturated hydrocarbons (HCs), is proposed and discussed. N 2O 5, which was found to be generated at approximately 0.02 moles per mole of O 3 in the first year's experiment, only marginally modified O 3 toxicity.

  10. Uranium mobility across annual growth rings in three deciduous tree species.

    Science.gov (United States)

    McHugh, Kelly C; Widom, Elisabeth; Spitz, Henry B; Wiles, Gregory C; Glover, Sam E

    2018-02-01

    Black walnut (Juglans nigra), slippery elm (Ulmus rubra), and white ash (Fraxinus americana) trees were evaluated as potential archives of past uranium (U) contamination. Like other metals, U mobility in annual growth rings of trees is dependent on the tree species. Uranium concentrations and isotopic compositions (masses 234, 235, 236, and 238) were analyzed by thermal ionization mass spectrometry to test the efficacy of using tree rings to retroactively monitor U pollution from the FFMPC, a U purification facility operating from 1951 to 1989. This study found non-natural U (depleted U and detectable 236 U) in growth rings of all three tree species that pre-dated the start of operations at FFMPC and compositional trends that did not correspond with known contamination events. Therefore, the annual growth rings of these tree species cannot be used to reliably monitor the chronology of U contamination. Copyright © 2017 Elsevier Ltd. All rights reserved.

  11. New data to the knowledge of macrofungi of Wolin National Park

    Directory of Open Access Journals (Sweden)

    Małgorzata Stasińska

    2017-01-01

    Full Text Available This paper presents the results of mycological studies conducted in the Wolin National Park from July to November 2012, and sporadically in the following 4 years. Explorations were made by a route method over the whole area of the Park, mainly in forest associations: Cephalanthero rubrae-Fagetum, Galio odorati-Fagetum, Luzulo pilosae-Fagetum, and Fago-Quercetum petraeae. In total, 322 taxa of macrofungi were found, 37 Ascomycota and 285 Basidiomycota. Two of them, Hericium coralloides and Inonotus obliquus, are under partial protection, 39 on the red list of fungi in Poland. For the first time, Russula torulosa, previously not reported from Poland, was found in Wolin National Park. Among the examined phytocoenoses, Galio odorati-Fagetum and Luzulo pilosae-Fagetum are characterized by the highest species variety and abundance.

  12. Seed yield components and their potential interaction in grasses - to what extend does seed weigth influence yield?

    DEFF Research Database (Denmark)

    Boelt, B; Gislum, R

    2010-01-01

     In a first-year seed crop of red fescue (Festuca rubra L.) the degree of lodging was controlled by the use of Moddus (Trinexapac-ethyl). Seed weight was found to increase by the decreasing degree of lodging prior to harvest. The higher seed weights were accompanied by higher yields even though...... the number of reproductive tillers and floret site utilization (FSU) were unaffected by the treatments. Seed yield is affected by several yield components and reflects the interaction between the seed yield potential (e.g. number of reproductive tillers, number of spikelets and florets/spikelet per...... reproductive tiller), the utilization of the potential (e.g. seed set, seed weight) and the realization of the seed yield potential, defined as the number of florets forming a saleable seed. The realization of the seed yield potential is affected by seed retention, seed weight and other traits associated...

  13. Phytostabilisation-A Sustainable Remediation Technique for Zinc in Soils

    Energy Technology Data Exchange (ETDEWEB)

    Padmavathiamma, Prabha [University of British Columbia, Faculty of Land and Food Systems (Canada); Li, Loretta, E-mail: lli@civil.ubc.c [University of British Columbia, Department of Civil Engineering (Canada)

    2009-08-15

    Two studies were conducted to determine a feasible and practical phytoremediation strategy for Zn-contaminated soils. The aim of the first study was to identify promising plant species capable of Zn remediation for the soils and climatic conditions of British Columbia. The purpose of the second study was to assess the effects of soil amendments in modifying the soil properties and providing the right conditions for the plants to immobilise Zn. Promising plants for phytostabilisation in the first study (Lolium perenne, Festuca rubra and Poa pratensis) were tested in the presence of soil amendments (lime, phosphate and compost, both individually and in combination) in the second study. The efficiency of treatments to stabilise Zn was based on Zn fractionation in the soil and on absorption and partitioning of Zn in plants. Maximum Zn immobilisation was achieved in the soil by a combination of lime, phosphate and compost, in conjunction with growth of P. pratensis.

  14. Ectomycorrhizal fungal communities of native and non-native Pinus and Quercus species in a common garden of 35-year-old trees.

    Science.gov (United States)

    Trocha, Lidia K; Kałucka, Izabela; Stasińska, Małgorzata; Nowak, Witold; Dabert, Mirosława; Leski, Tomasz; Rudawska, Maria; Oleksyn, Jacek

    2012-02-01

    Non-native tree species have been widely planted or have become naturalized in most forested landscapes. It is not clear if native trees species collectively differ in ectomycorrhizal fungal (EMF) diversity and communities from that of non-native tree species. Alternatively, EMF species community similarity may be more determined by host plant phylogeny than by whether the plant is native or non-native. We examined these unknowns by comparing two genera, native and non-native Quercus robur and Quercus rubra and native and non-native Pinus sylvestris and Pinus nigra in a 35-year-old common garden in Poland. Using molecular and morphological approaches, we identified EMF species from ectomycorrhizal root tips and sporocarps collected in the monoculture tree plots. A total of 69 EMF species were found, with 38 species collected only as sporocarps, 18 only as ectomycorrhizas, and 13 both as ectomycorrhizas and sporocarps. The EMF species observed were all native and commonly associated with a Holarctic range in distribution. We found that native Q. robur had ca. 120% higher total EMF species richness than the non-native Q. rubra, while native P. sylvestris had ca. 25% lower total EMF species richness than non-native P. nigra. Thus, across genera, there was no evidence that native species have higher EMF species diversity than exotic species. In addition, we found a higher similarity in EMF communities between the two Pinus species than between the two Quercus species. These results support the naturalization of non-native trees by means of mutualistic associations with cosmopolitan and novel fungi.

  15. Seed conditioning of red oak: a recalcitrant North American seed Condicionamento de sementes de carvalho vermelho: semente recalcitrante da América do Norte

    Directory of Open Access Journals (Sweden)

    D.K. Struve

    1998-01-01

    Full Text Available A ten day aerated water soak was developed as a seed conditioning treatment for red oak (Quercus rubra L.. Conditioned seeds had higher germination completeness, uniformity and speed compared to control seeds. Seeds could be conditioned under a wide range of temperatures and durations. Conditioned seeds were maintained at 7(0C for 30 days without loss of seed quality. During conditioning, pericarps split in response to seed hydration. Split pericarps could be used as a pre-sowing indicator for high quality seeds. Seed conditioning was ineffective on dormant seeds. Increased crop uniformity and higher stand establishment can be realized by subjecting red oak acorns to an aerated water soak treatment followed by selecting seeds with split pericarps. These results are especially important in container production systems where limited numbers of value seeds are available.Sementes de carvalho vermelho (Quercus rubra L. foram condicionadas diretamente em água, sob aeração, durante 10 dias. As sementes condicionadas fisiologicamente apresentaram maior percentagem, velocidade e uniformidade de germinação, quando comparadas com a testemunha. O condicionamento das sementes pode ser efetuado sob ampla variação de temperaturas e períodos de exposição. Sementes condicionadas podem ser mantidas a 7ºC/30 dias, sem perda de qualidade. Durante o condicionamento ocorre ruptura do pericarpo, em resposta à hidratação da semente; essa ocorrência pode ser utilizada para estimar a qualidade da semente. O condicionamento não apresentou efeitos em sementes dormentes. O condicionamento das sementes de carvalho vermelho em água, com aeração, seguido pela seleção de sementes com ruptura do pericarpo, proporciona o rápido estabelecimento e uniformidade das plântulas.

  16. Estaquillas leñosas de fácil enraizamiento: Estudio del Esclerenquima Estaquillas leñosas de fácil enraizamiento: Estudio del Esclerénquima

    Directory of Open Access Journals (Sweden)

    González Elena

    1986-12-01

    Full Text Available An anatomy study was made of following wood easy-to-root species: Aucuba japonica Thunb., Buddleja  japonica Hemsley,  Buxus sempervirens L., Citrus aurantium.  L., Citrus limon (L. Burm. fil.,  Cvdonia oblonga Miller,  Erica arborea L., Escallonia rubra (Ruiz & Pavón Pers., Euonymus japonicus L. fil., Forsythia viridissima Lindl., Hydrangea macrophylla Ser., Morus alba L., Populus nigra L.,  Rhododendron ponticum L., Salix atrocinerea Brot., Salix  viminalis L., Sambucus nigra L. and Symphoricarpos albus (L. S. F. Blake.  It was observed the presence or absence of a discontinous sclerenchyma ring so the species studied had not a mechanical barrier to the emergence of adventitious roots. Se realizó un estudio histológico de las siguientes especies leñosas de fácil enraizamiento: Aucuba japonica Thumb, Buddleja japonica Hemsley, Buxus sempervirens L., Citrus aurantium L., Citrus limon (L. Burm, fil., Cydonia oblonga Miller, Erica arborea L., Escallonia rubra (Ruiz & Pavón Pers., Euonymus japonicus L. fil., Forsythia viridissima Lindl., Hydrangea macrophylla Ser., Morus alba L. Populus nigra L., Rhododendron ponticum L., Salix atrocinerea Brot., Salix viminalis L., Sambucus nigra L. y Syrnphoricarpos albus (L. S. F. Blake. Se observó la presencia o ausencia de un anillo discontinuo de esclerénquima, por lo tanto dichas especies no poseen ningún impedimento mecánico para la emergencia de las raíces adventicias.

  17. Evaluation of an ablative and non-ablative laser procedure in the treatment of striae distensae

    Directory of Open Access Journals (Sweden)

    Sule Gungor

    2014-01-01

    Full Text Available Background: Striae distensae or stretch marks are atrophic linear dermal scars with epidermal atrophy. There are many therapeutic options for management, but no consistently effective modality is available yet. Objective: We compared the efficacy of 1064 nm long pulse (LP Nd: YAG laser and 2940 nm variable square pulse (VSP erbium: YAG laser in the treatment of striae distensae. Methods: Twenty female volunteers (Fitzpatrick skin types II-V aged between 20 and 40 years with striae (3 patients with the rubra type and 17 with the alba type were enrolled in the study. The duration of striae ranged from 4 months to 12 years. Lesions were located on the abdomen in all patients except one patient who had striae on the arms and two patients with striae in the lumbar region. Treatments were randomly allocated to both sides of the body in each patient, one side being treated with VSP erbium: YAG laser and the opposite side with LP Nd: YAG laser. All subjects were treated monthly for a total of three treatments. Two 3-mm punch biopsies were obtained from six subjects, both of the same striae, one before the first treatment and one 4 weeks after the last session. Results: Response was evaluated clinically by photographic comparison and was found to be poor in 17 subjects, both on the LP Nd: YAG laser treated side and VSP erbium YAG laser treated side. All these patients had mature lesions (striae distensae alba. Three subjects had a moderate response on both sides; these patients′ striae were immature (striae distensae rubra. Histologically, elastic fibers were slightly increased in post-treatment samples compared with pretreatment skin biopsies. Conclusion: We observed no satisfactory clinical improvement in striae distensae alba lesions although histopathological changes were seen. We suggest that variable square pulse Er: YAG and long pulse Nd: YAG lasers are not useful in the treatment of striae distensae alba.

  18. Patients presenting with miliaria while wearing flame resistant clothing in high ambient temperatures: a case series

    Directory of Open Access Journals (Sweden)

    Garcia Anisa M

    2011-09-01

    Full Text Available Abstract Introduction Clothing can be a cause of occupational dermatitis. Frequent causes of clothing-related dermatological problems can be the fabric itself and/or chemical additives used in the laundering process, friction from certain fabrics excessively rubbing the skin, or heat retention from perspiration-soaked clothing in hot working environments. To the best of our knowledge, these are the first reported cases of miliaria rubra associated with prolonged use of flame resistant clothing in the medical literature. Case presentation We report 18 cases (14 men and 4 women, with an age range of 19 to 37 years of moderate to severe skin irritation associated with wearing flame resistant clothing in hot arid environments (temperature range: 39 to 50°C, 5% to 25% relative humidity. We describe the medical history in detail of a 23-year-old Caucasian woman and a 31-year-old African-American man. A summary of the other 16 patients is also provided. Conclusions These cases illustrate the potential serious nature of miliaria with superimposed Staphylococcus infections. All 18 patients fully recovered with topical skin treatment and modifications to their dress ensemble. Clothing, in particular blend fabrics, must be thoroughly laundered to adequately remove detergent residue. While in hot environments, individuals with sensitive skin should take the necessary precautions such as regular changing of clothing and good personal hygiene to ensure that their skin remains as dry and clean as possible. It is also important that they report to their health care provider as soon as skin irritation or rash appears to initiate any necessary medical procedures. Miliaria rubra can take a week or longer to clear, so removal of exposure to certain fabric types may be necessary.

  19. Effects of structural complexity on within-canopy light environments and leaf traits in a northern mixed deciduous forest.

    Science.gov (United States)

    Fotis, Alexander T; Curtis, Peter S

    2017-10-01

    Canopy structure influences forest productivity through its effects on the distribution of radiation and the light-induced changes in leaf physiological traits. Due to the difficulty of accessing and measuring forest canopies, few field-based studies have quantitatively linked these divergent scales of canopy functioning. The objective of our study was to investigate how canopy structure affects light profiles within a forest canopy and whether leaves of mature trees adjust morphologically and biochemically to the light environments characteristic of canopies with different structural complexity. We used a combination of light detection and ranging (LiDAR) data and hemispherical photographs to quantify canopy structure and light environments, respectively, and a telescoping pole to sample leaves. Leaf mass per area (LMA), nitrogen on an area basis (Narea) and chlorophyll on a mass basis (Chlmass) were measured in red maple (Acer rubrum), american beech (Fagus grandifolia), white pine (Pinus strobus), and northern red oak (Quercus rubra) at different heights in plots with similar leaf area index but contrasting canopy complexity (rugosity). We found that more complex canopies had greater porosity and reduced light variability in the midcanopy while total light interception was unchanged relative to less complex canopies. Leaf phenotypes of F. grandifolia, Q. rubra and P. strobus were more sun-acclimated in the midstory of structurally complex canopies while leaf phenotypes of A. rubrum were more shade-acclimated (lower LMA) in the upper canopy of more complex stands, despite no differences in total light interception. Broadleaf species showed further differences in acclimation with increased Narea and reduced Chlmass in leaves with higher LMA, while P. strobus showed no change in Narea and Chlmass with higher LMA. Our results provide new insight on how light distribution and leaf acclimation in mature trees might be altered when natural and anthropogenic

  20. Ultrasound and 3D Skin Imaging: Methods to Evaluate Efficacy of Striae Distensae Treatment

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    Mariella Bleve

    2012-01-01

    Full Text Available Background. Over time, the striae rubra develop into striae alba that appear white, flat, and depressed. It is very important to determine the optimum striae management. In order to evaluate the effectiveness of these therapies, objective measurement tools are necessary. Objective. The aim of this study is to evaluate if ultrasonography and PRIMOS can be used to obtain an objective assessment of stretch marks type and stage; furthermore, we aim to apply these techniques to evaluate the efficacy of a topical treatment. Methods. 20 volunteers were enrolled with a two-month study. A marketed cosmetic product was used as the active over one body area. The controlateral area with stretch marks was treated with a “placebo” formulation without active, as a control. The instrumental evaluation was carried out at the beginning of the trial (baseline values or 0, after 1 month (1, and at the end of the study (2. Results. PRIMOS was able to measure and document striae distensae maturation; furthermore, ultrasound imaging permitted to visualize and diagnose the striae. Statistical analysis of skin roughness demonstrated a statistically significant reduction of Rp value only in a treated group. In fact, the Rp value represented a maximum peak height in the area selected. These results demonstrated that after two months of treatment only the striae rubra can be treated successfully. Conclusions. This work demonstrated that the 22MHz ultrasound can diagnose stretch marks; PRIMOS device can detect and measure striae distensae type and maturation. Furthermore, the high-frequency ultrasound and the 3D image device, described in this work, can be successfully employed in order to evaluate the efficacy of a topical treatment.

  1. Effects of understory vegetation and litter on plant nitrogen (N, phosphorus (P, N:P ratio and their relationships with growth rate of indigenous seedlings in subtropical plantations.

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    Jun Wang

    Full Text Available Establishing seedlings in subtropical plantations is very important for forest health, succession and management. Information on seedling nutrient concentrations is essential for both the selection of suitable indigenous tree species to accelerate succession of the established plantation and sustainable forest management. In this study, we investigated the concentrations of nitrogen ([N], phosphorus ([P], and N:P ratio in leaves, stems and roots of seedlings of three indigenous tree species (Castanopsis chinensis, Michelia chapensis and Psychotria rubra transplanted with removing or retaining understory vegetation and litter at two typical subtropical forest plantations (Eucalyptus plantation and native species plantation. We also measured the relative growth rate (RGR of seedling height, and developed the relationships between RGR and leaf [N], [P] and N:P ratio. Results showed that treatments of understory vegetation and associated litter (i.e. removal or retained generally had no significant effects on leaf [N], [P], N:P ratio and RGR of the transplanted tree seedlings for the experimental period. But among different species, there were significant differences in nutrient concentrations. M. chapensis and P. rubra had higher [N] and [P] compared to C. chinensis. [N] and [P] also varied among different plant tissues with much higher values in leaves than in roots for all indigenous species. RGR of indigenous tree seedlings was mostly positively correlated with leaf [N] and [P], but negatively correlated with leaf N:P ratio. Considering the low [P] and high N:P ratio observed in the introduced indigenous tree seedlings, we propose that the current experimental plantations might be P limited for plant growth.

  2. Community development on 35-year-old planted minespoil banks in Pennsylvania

    Energy Technology Data Exchange (ETDEWEB)

    Schuster, W S; Hutnik, R J

    1987-07-01

    Invading plant communities were studied in 1982 on a series of 35-year old strip-mine test plantings in the main bituminous region of Pennsylvania. Ten of the original 22 sites were evaluated; the others had been significantly disturbed or destroyed. The sites varied in mean pH, in survival and basal area of the planted trees and in the species planted. The study involved 24 plots of the following species: eastern white pine (Pine strobus), red pine (Pinus resinosa), Japanese larch (Laprix leptolepis), red oak (Quercus rubra), black locust (Robinia pseudoacacia), white ash (Fraxinus americana), green ash (Fraxinus pennsylvanica) and hybrid poplar (Populus hyb.) and seven plots where plantings were unsuccessful (control plots). In the cluster analysis of invading communities described by a modified Braun-Blanquet scale, strong clustering trends were evident by both site and planted species. Clustering by sites was most pronounced for those sites with extremes of soil pH. There was also strong clustering among pine plots and among some hardwood plots. Species richness was higher on white ash, red oak, Japanese larch and control plots than on white pine plots. Black cherry (Prunus serotina) was the most common of the 169 invading species and was especially numerous on black locust plots. Aspens (Populus sp.) were also common invaders, especially on pine and ash plots. These species, along with pin cherry (Prunus Pennsylvanica) and the planted black locust are declining in importance, whereas black cherry, red maple (Acer rubrum) and slippery elm (Ulmus rubra) are increasing. Invading oaks (Quercus sp.), hickories (Carya sp.) and a few sugar maple (Acer saccharum) and American beech (Fagus grandifolia) suggest future successional changes. 26 refs., 2 figs., 4 tabs.

  3. Flux-based Enrichment Ratios of Throughfall and Stemflow Found to Vary Significantly within Urban Fragments and Along an Urban-to-Rural Gradient

    Science.gov (United States)

    Dowtin, A. L.; Levia, D. F., Jr.

    2017-12-01

    Throughfall and stemflow are important inputs of water and solutes to forest soils in both rural and urban forests. In metropolitan wooded ecosystems, a number of factors can affect flux-based enrichment ratios, including combustion of fossil fuels and proximity to industry. Use of flux-based enrichment ratios provides a means by which this modification of net precipitation chemistry can be quantified for both throughfall and stemflow, and allows for a characterization of the relative contributions of stemflow and throughfall in the delivery of nutrients and pollutants to forest soils. This study utilizes five mixed deciduous forest stands along an urban-to-rural gradient (3 urban fragments, 1 suburban fragment, and a portion of 1 contiguous rural forest) within a medium-sized metropolitan region of the United States' Northeast megalopolis, to determine how the size, shape, structure, and geographic context of remnant forest fragments determine hydrologic and solute fluxes within them. In situ observations of throughfall and stemflow (the latter of which is limited to Quercus rubra and Quercus alba) within each study plot allow for an identification and characterization of the spatial variability in solute fluxes within and between the respective sites. Preliminary observations indicate significant intra-site variability in solute concentrations as observed in both throughfall and stemflow, with higher concentrations along the respective windward edges of the study plots than at greater depths into their interiors. Higher flux-based stemflow enrichment ratios, for both Q. rubra and Q. alba, were also evident for certain ions (i.e., S2-, NO3-) in the urban forest fragments, with significantly lower ratios observed at the suburban and rural sites. Findings from this research are intended to aid in quantifying the spatial variability of the hydrologic and hydrochemical ecosystem service provisions of remnant metropolitan forest fragments. This research is supported in

  4. Micoses superficiais na cidade de Manaus, AM, entre março e novembro/2003 Superficial mycoses in the City of Manaus/AM between March and November/2003

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    José Augusto Almendros de Oliveira

    2006-06-01

    /CPCS-INPA. RESULTS - Three hundred and ninety-four examinations were carried out throughout the period and 256 were positive. The mycoses with higher incidence were onychomycosis (135 and pityriasis versicolor (98. The most often isolated agents were Malassezia spp. (77 and Candida spp. (72. Tinea capitis was more frequent in pre-school children (3 and onychomycosis in adults (94. Mycoses were more prevalent in women (91. All socioeconomic classes were affected, with a predominance in class C (37. CONCLUSION - Onychomycosis and pityriasis versicolor affected mostly adults and Tinea capitis occured mainly in children. Superficial mycoses were more predominant in women. Malassezia spp. and Candida spp. were the most often isolated agents.

  5. Differentiated treatment of patients with acne and concomitant candida infection

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    Yaakubi Randa

    2016-12-01

    Full Text Available There are a lot of works, which are devoted to the study of acne, but these data are often contradictory on the issue of interrelationship and interdependence of clinical manifestations, course and some factors in the pathogenesis of acne and candida infection. Aim of the research was to study the effect of the recommended differentiated therapy on the pathogenetic disorders in patients with acne and concomitant Candida infection. Methods and results. 120 patients with acne were examined. In 100 of them concomitant skin malasseziosis was set in the form of pityriasis rosea, kerosis, comedones, folliculitis, seborrhea, multicolored zoster, with some features, as well as candidiasis. Methods of the research – bacterioscopic, bacteriological, study of skin oiliness and moisture, skin pH, the level of Ca ++, parathyroid hormone and calcitonin. In patients with acne significant shifts in the composition of water-lipid mantle, increased oiliness and decreased moisture of skin, pH changes with a shift to the alkaline side were revealed, the most pronounced – in acne patients with Candida infection. The content of Ca ++ in the organism, as well as parathyroid hormone and calcitonin was increased and also the most indicative it was in patients with acne and concomitant Candida infection. After the comparative analysis on the basis of different levels of clinical and laboratory violations two clinical-therapeutic groups were distinguished, in accordance with that the differentiated therapy offered by us was conducted. Increased oiliness and Рh of skin, decline of moisture before the treatment, especially in patients with III and IV stages of acne, complicated by Candida infection, were normalized after treatment, unlike in patients treated traditionally. Conclusion. After treatment intensity of microbal colonization and also microbal associations of skin was diminished, the level of Ca++, parathyroid hormone and calcitonin went down.

  6. Dermatological consequences of the Cs-137 radiological accident in Goiania, Goias State, Brazil; Repercussoes dermatologicas no acidente radioativo com o Cesio 137 em Goiania

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Lia Candida Miranda de

    1996-07-01

    The objective of the present study was to analyse the occurrence of dermatosis in individuals that had been exposed to cesium{sup 137} during the radioactive accident in Goiania, in 1987 and detect pre-cancerous dermatosis or those predictive of low immunity. The groups were evaluated according to the intensity of radiation they had been exposed to and then compared to a control group of people not exposed to radiation. The population exposed to the cesium{sup 137} was comprised of 109 people, who were divided into Groups I and II, according to the CNEN norms. In group I, 54 people with {<=} 20 rads exposure and/or radio lesion were included; in group II, 55 people with > 20 rads exposure were included, along with the children of group I individuals. This was a historic cohort study, that is, a retrospective study that lasted 9 years, extending from September of 1987 to August, 1996. The presence of the oncoprotein p-53 was studied in the radio lesions of 10 patients. There is no evidence of an increase in the incidence of dermatosis in the exposed groups, excepts for pyoderma in patients with radio lesions. The most frequent dermatosis were: pyoderma, pityriasis versicolor, scabies, dermatophytosis and seborrhoeic dermatitis. The results obtained were not statistically significant for the evaluation of dermatosis predictive of low immunity or precancerous lesions. The oncoprotein p-53 in individuals with radio lesion showed a 80% positivity rate and risk factor estimated in 8 times, for the test. It has proved to be useful because it represents one more option in terms of propaedeutic evaluation and suggests that one should pay close and continuous attention in order to better control the evolution of these individuals. (author)

  7. Rare and very rare adverse effects of clozapine

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    De Fazio P

    2015-08-01

    Full Text Available Pasquale De Fazio,1 Raffaele Gaetano,1 Mariarita Caroleo,1 Gregorio Cerminara,1 Francesca Maida,2 Antonio Bruno,3 Maria Rosaria Muscatello,3 Maria Jose Jaén Moreno,4 Emilio Russo,2 Cristina Segura-García1 1Department of Health Sciences, School of Specialization in Psychiatry, 2Department of Health Sciences, School of Specialization in Pharmacology, University “Magna Graecia”, Catanzaro, 3Department of Neurosciences, School of Specialization in Psychiatry, University of Messina, Messina, Italy; 4Department of Social Health Sciences, Radiology and Physical Medicine, University of Cordoba, Cordoba, Spain Abstract: Clozapine (CLZ is the drug of choice for the treatment of resistant schizophrenia; however, its suitable use is limited by the complex adverse effects’ profile. The best-described adverse effects in the literature are represented by agranulocytosis, myocarditis, sedation, weight gain, hypotension, and drooling; nevertheless, there are other known adverse effects that psychiatrists should readily recognize and manage. This review covers the “rare” and “very rare” known adverse effects of CLZ, which have been accurately described in literature. An extensive search on the basis of predefined criteria was made using CLZ and its combination with adverse effects as keywords in electronic databases. Data show the association between the use of CLZ and uncommon adverse effects, including ischemic colitis, paralytic ileus, hematemesis, gastroesophageal reflux disease, priapism, urinary incontinence, pityriasis rosea, intertriginous erythema, pulmonary thromboembolism, pseudo-pheochromocytoma, periorbital edema, and parotitis, which are influenced by other variables including age, early diagnosis, and previous/current pharmacological therapies. Some of these adverse effects, although unpredictable, are often manageable if promptly recognized and treated. Others are serious and potentially life-threatening. However, an adequate

  8. [Superficial mycoses in patients from Anzoátegui state, Venezuela, period 2002-2012].

    Science.gov (United States)

    Lemus-Espinoza, Druvic; Teresa Maniscalchi, María; Villarroel, Oskarina; Bónoli, Stefano B; Wahab, Fadi; García, Oswaldo

    2014-12-01

    Superficial fungal diseases that affect the skin and its appendages are frequently seen in basic triage and in dermatology services. These diseases are distributed in Venezuela with an incidence of 92.9%. The aim of this study was to determine the genera and species that cause dermatomycoses in residents of Anzoátegui state, Venezuela, during the period 2002-2012. A total of 4257 patients with a presumptive diagnosis of superficial mycoses were studied, with ages from 7 months to 79 years. The overall prevalence was 30.9%. The most frequent were dermatophytosis (44.7%). M. canis produced 148 cases of tinea capitis. Three dermatophytic agents represented 95% of all cases, with a significant predominance of T. mentagrophytes with 50%. Candidosis occurred in 28.4%. C. albicans, and the C. parapsilosis complex, were responsible for 80% of the cases. The other species identified were C. tropicalis (n = 41, 11.0%), C. glabrata (n = 10, 2.7%), C. guilliermondii (n = 6, 1.6%), C. krusei (n = 4, 1.1%). Pityriasis versicolor occurred in 22.4% of the cases studied, and less frequently were present onychomycosis produced by a non dermatophytic mold: Fusarium oxysporum (n = 34, 65.4%), Aspergillus terreus (n=16, 30.8%) and Scytalidium dimidiatum (n=2; 3.8%). Rare cases of Trichosporon onychomycosis (0.5%) and one case of black tinea were also found. Health education in the population is recommended to promote measures to prevent transmission of these fungi and prevent the spread of this silent public health problem.

  9. [Mycoses in Venezuela: Working Groups in Mycology reported cases (1984-2010)].

    Science.gov (United States)

    Martínez Méndez, Dilia; Hernández Valles, Rosaura; Alvarado, Primavera; Mendoza, Mireya

    2013-01-03

    In 1984 the Venezuelan Work Groups in Mycology (VWGM) were created introducing an innovative approach to the study of the mycoses in Venezuela. To study the occurrence of the mycoses in Venezuela. Review the reported cases of mycoses by the newsletter Boletín Informativo Las Micosis en Venezuela (VWGM) from 1984 to 2010. The data collected showed 36,968 reported cases of superficial mycoses, 1,989 of deep systemic cases, and 822 of localized mycoses. Pityriasis dermatophytosis was the most common superficial infection, and paracoccidioidomycosis and histoplasmosis the most frequent deep systemic infection. Chromoblastomycosis was the most frequently diagnosed subcutaneous infection. The data provided showed the distribution by geographical area for each of the fungal infections studied, which may help to establish the endemic areas. Superficial mycosis is a public health problem due to its high morbidity and is probably responsible for some of the outbreaks in high-risk groups. Paracoccidioidomycosis and histoplasmosis were reported more often, which agrees with earlier reports prior to the formation of the VWGM. Cases of sporotrichosis and chromoblastomycosis in Venezuela can be considered unique due to the high number of cases. This study highlights the contribution of the VWGM to the behavior of the mycoses in Venezuela, its incidence, prevalence, and the recognition of these infections as a problem of public health importance. The VWGM should keep working in this endeavor, not only reporting new cases, but also unifying the clinical and epidemiological criteria, in order to properly monitor the evolving epidemiological changes reported in these types of infections. Copyright © 2012 Revista Iberoamericana de Micología. Published by Elsevier España, S.L. All rights reserved.

  10. Dermatological consequences of the Cs-137 radiological accident in Goiania, Goias State, Brazil

    International Nuclear Information System (INIS)

    Castro, Lia Candida Miranda de

    1996-01-01

    The objective of the present study was to analyse the occurrence of dermatosis in individuals that had been exposed to cesium 137 during the radioactive accident in Goiania, in 1987 and detect pre-cancerous dermatosis or those predictive of low immunity. The groups were evaluated according to the intensity of radiation they had been exposed to and then compared to a control group of people not exposed to radiation. The population exposed to the cesium 137 was comprised of 109 people, who were divided into Groups I and II, according to the CNEN norms. In group I, 54 people with ≤ 20 rads exposure and/or radio lesion were included; in group II, 55 people with > 20 rads exposure were included, along with the children of group I individuals. This was a historic cohort study, that is, a retrospective study that lasted 9 years, extending from September of 1987 to August, 1996. The presence of the oncoprotein p-53 was studied in the radio lesions of 10 patients. There is no evidence of an increase in the incidence of dermatosis in the exposed groups, excepts for pyoderma in patients with radio lesions. The most frequent dermatosis were: pyoderma, pityriasis versicolor, scabies, dermatophytosis and seborrhoeic dermatitis. The results obtained were not statistically significant for the evaluation of dermatosis predictive of low immunity or precancerous lesions. The oncoprotein p-53 in individuals with radio lesion showed a 80% positivity rate and risk factor estimated in 8 times, for the test. It has proved to be useful because it represents one more option in terms of propaedeutic evaluation and suggests that one should pay close and continuous attention in order to better control the evolution of these individuals. (author)

  11. PREVALENCE OF PAEDIATRIC DERMATOSES IN THE AGE GROUP OF 5-14 YEARS AT A TERTIARY CARE CENTER IN SALEM

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    Prasanna Kanniah Baskara

    2017-01-01

    Full Text Available BACKGROUND Skin diseases in pediatric age group are common all over the world. Pediatric dermatoses require separate view from adult dermatoses as there are differences in their clinical presentation and treatment. OBJECTIVE The aim of our study was to determine the prevalence of pediatric dermatoses attending our tertiary care center. MATERIALS AND METHODS This was a cross-sectional study conducted in 100 consecutive children with dermatoses between 5-14 years of age attending dermatology outpatient department at Vinayaka Missions Kirupananda Variyar medical college, Salem. The study was conducted over a period of 6 months from February 2016 to August 2016. Demographic parameters, detailed history, clinical features and diagnosis were recorded and analyzed. RESULTS In our short term study, we examined 100 pediatric cases with 106 dermatoses. The incidence of infections and infestations (43.39% was more prevalent in our study. The most common non-infectious dermatoses in our study was insect bite reactions (17.9%. Dermatitis and eczema (9.39%, disorders of sweat and sebaceous glands (6.6%, pigmentary disorders (5.66%, disorders of hair and nails (3.77%, genetic disorders (2.88%, immune and allergic disorders (2.8%, psoriasis (2.8%, nutritional disorders (0.9%, Polymorphic light eruption (0.9%, pearly penile papule (0.9%, aphthous ulcer (0.9% and pityriasis rosea (0.9% were the other dermatoses seen in the study.CONCLUSION Fungal infections (tinea versicolor and tinea corporis, scabies and insect bite reactions were the common dermatoses observed in our study. Most of the pediatric patients attending our hospital came from rural areas belonging to low socioeconomic strata. Health education, proper sanitation and improved nutrition will help to reduce the incidence of pediatric dermatoses.

  12. Studies in American orchids VII Studies in American orchids VII

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    Garay Leslie A.

    1968-09-01

    Full Text Available Vanilla rubra (Lam. Urb. in Fedde Rep. Beih, 5: 157, 1920 / Elleanthus Kalbreyeri Garay, nom. nov. / Elleanthus lancifolius Presl, Rel. Haenk. 97, 1827 / Pleurothallis cardiothallis Rchb. f. in Bot. Zeit. 15: 158, 1857 / Pleurothallis excelsa Garay, sp. nov. / Platystele Johnstonii (Ames Garay, comb. nov. / Platystele propinqua (Ames, Garay, comb. nov. / Platystele xiphochila (Rchb. f. Garay, comb. nov. / Lepanthopsis serrulata (Cogn. Hespenheide & Garay, comb. nov. / Masdevallia bulbophyllopsis Krzl. in Fedde Rep. 17: 412, 1921. / Masdevallia heteroptera Rchb. f. in Gard. Chron. n. s. 3: 590, 1875. / Masdevallia velutina  Rchb. f. in Gard. Chron. n. s. 4: 420, 1875 / Epidendrum bracteolatum Presl, ReI. Haenk. 100, 1827 / Epidendrum infaustum Rchb. f. in Hamb. Gartenz. 19: 13, 1863 / Epidendrum jejunum Rchb. f. in Otia Bot. Hamb, 12, 1878 / Epidendrum vernixium Rchb. f. & Warsc. in Bonpl. 2: 110, 1854 / Maxillaria ochracea (Rchb. f. Garay, comb. nov / Odontoglossum narthecioides (Krzl. Garay, comb. nov. / Sigmatostalix auriculata, Garay, sp. nov. / Sigmatostalix  Brownii Garay,· sp. nov / Rusbyella pusilla (C. Schweinf. Garay, comb. nov / Sphyrastylis ecuadorensis Garay, sp. nov / Pterostemma  calceolaris Garay, sp. nov.Vanilla rubra (Lam. Urb. in Fedde Rep. Beih, 5: 157, 1920 / Elleanthus Kalbreyeri Garay, nom. nov. / Elleanthus lancifolius Presl, Rel. Haenk. 97, 1827 / Pleurothallis cardiothallis Rchb. f. in Bot. Zeit. 15: 158, 1857 / Pleurothallis excelsa Garay, sp. nov. / Platystele Johnstonii (Ames Garay, comb. nov. / Platystele propinqua (Ames, Garay, comb. nov. / Platystele xiphochila (Rchb. f. Garay, comb. nov. / Lepanthopsis serrulata (Cogn. Hespenheide & Garay, comb. nov. / Masdevallia bulbophyllopsis Krzl. in Fedde Rep. 17: 412, 1921. / Masdevallia heteroptera Rchb. f. in Gard. Chron. n. s. 3: 590, 1875. / Masdevallia velutina  Rchb. f. in Gard. Chron. n. s. 4: 420, 1875 / Epidendrum bracteolatum Presl, ReI. Haenk. 100, 1827

  13. Roseomonas hibiscisoli sp. nov., isolated from the rhizosphere of Mugunghwa (Hibiscus syriacus).

    Science.gov (United States)

    Yan, Zheng-Fei; Lin, Pei; Li, Chang-Tian; Kook, MooChang; Wang, Qi-Jun; Yi, Tae-Hoo

    2017-08-01

    A Gram-stain-negative, aerobic, non-motile and coccoid to short-rod-shaped bacterial strain (THG-N2.22T) was isolated from the rhizosphere of Mugunghwa (Hibiscus syriacus). Growth occurred at 20-40 °C (optimum 28 °C), at pH 5-9 (optimum 7) and with 0-4 % (w/v) NaCl (optimum 1 %). Based on 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain THG-N2.22T were identified as Roseomonas rhizosphaerae YW11T (98.5 % similarity), Roseomonas rubra S5T (98.5 %), Roseomonas cervicalis ATCC 49957T (98.2 %), Roseomonas aestuarii JC17T (97.8 %), Roseomonas oryzae JC288T (97.3 %) and Roseomonas ludipueritiae 170/96T (97.3 %); levels of similarity with the type strains of other Roseomonas species were lower than 97.0 %. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, two unidentified aminolipids, three unidentified phospholipids and three unidentified lipids. The major quinone was ubiquinone-10. The major fatty acids were C16 : 0, C18 : 1 2-OH, C18 : 1ω7c and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The DNA G+C content of strain THG-N2.22T was 64.1 mol%. DNA-DNA hybridization values between strain THG-N2.22T and R. rhizosphaerae YW11T, R. rubra S5T, R. cervicalis ATCC 49957T, R. aestuarii JC17T, R. oryzae JC288T and R. ludipueritiae 170/96T were 43.1 % (30.2 %, reciprocal analysis), 39.0 % (24.7 %), 34.4 % (15.2 %), 18.0 % (14.5 %), 14.7 % (9.7 %) and 11.0 % (5.6 %), respectively. On the basis of the phylogenetic analysis, chemotaxonomic data, physiological characteristics and DNA-DNA hybridization data, strain THG-N2.22T represents a novel species of the genus Roseomonas, for which the name Roseomonas hibiscisoli sp. nov. is proposed. The type strain is THG-N2.22T (=KACC 18935T=CCTCC AB 2016176T).

  14. SKRINING FARMAKOGNOSI TANAMAN ETNOFARMASI ASAL KABUPATEN BULUKUMBA YANG BERPOTENSI SEBAGAI ANTIKANKER

    Directory of Open Access Journals (Sweden)

    Asni Amin

    2012-06-01

    Full Text Available The use of traditional medicine has long been known and used by the people of South Sulawesi and recorded since the 15th century in lontara 'pabbura. Bulukumba as one of the areas of south Sulawesi inhabited by ethnic of Kajang and ethnic of Makassar has also been used plants to treat several of diseases including. Screening studies pharmacognostic origin Bulukumba conducted to identify medicinal plants used by the community Bulukumba to treat cancer. The research location is the village of Bahari Bonto Lembanna District Bulukumba, The research location is the village Lembana of Bonto Bahari District Regency of Bulukumba, the surveys plants etnofarmasi through sanro (traditional healers, public figures and society who have knowledge of traditional medicine with purposive sampling method. Pharmacognosy screening includes determination etnofarmasi plants that have been collected, organoleptic examination, morphology, anatomy and identification of chemical constituents using color reagent and precipitation reactions. The results obtained five plants etnofarmasi potential for the treatment of cancer, leaf of landep (Barleria prionitis L. Family Acanthaceae, gewor (Basella rubra L Famili Acanhtaceae, pecut kuda (Stachytarpheta jamaicensis Family Loranthaceae, rumput mutiara (Hedyotis corymbosa L. family Rubiaceae dan gondola (Commelina benghalensis L. Family Commelinaceae, with chemical ingredients contain flavonoids, saponins, alkaloids, and tannins. The content of flavonoids and alkaloids in plants has the potential to be used as a cancer treatment. Keywords : Etnopharmacy, anticancer, Pharmacognosy screening. Abstrak Penggunaan obat tradisional telah lama dikenal dan digunakan oleh masyarakat Sulawesi Selatan dan dibukukan sejak abad ke-15 dalam lontara’ pabbura. Bulukumba sebagai salah satu wilayah Sulawesi Selatan dihuni oleh etnis Makassar dan etnis Kajang juga telah menggunakan tanaman termasuk untuk mengobati berbagai penyakit. Penelitian

  15. Exploring canopy structure and function as a potential mechanism of sustain carbon sequestration in aging forests

    Science.gov (United States)

    Fotis, A. T.; Curtis, P.; Ricart, R.

    2013-12-01

    The notion that old-growth forests reach carbon neutrality has recently been challenged, but the mechanisms responsible for continued productivity have remained elusive. Increases in canopy structural complexity, defined by high horizontal and vertical variability in leaf distribution (rugosity), has been proposed as a mechanism for sustained high rates of above ground net primary production (ANPPw) in forests up to ~170 years by enhancing light use efficiency (LUE) and nitrogen use efficiency (NUE). However, a detailed understanding of how rugosity affects resource distribution within and among trees leading to greater LUE and NUE is not known. We propose that leaves in high rugosity plots receive greater photosynthetic photon flux density (PPFD) than leaves in low rugosity plots, causing shifts from shade- to sun- adapted leaves into deeper portions of the canopy, which is thought to increase the photosynthetic capacity of individuals and lead to higher carbon assimilation in forests. The goal of this research was to: 1) quantify different canopy structural characteristics using a portable canopy LiDAR (PCL) and; 2) assess how these structural characteristics affect resource distribution and subsequent changes in leaf morphological, physiological and biochemical traits in three broadleaf species (e.g., Acer rubrum, Quercus rubra and Fagus grandifolia) and one conifer species (e.g., Pinus strobus) at different levels in the canopy in plots with similar leaf are index (LAI) but highly contrasting rugosity levels. We found that gap fraction had a strong positive correlation with rugosity. High rugosity plots had a bimodal distribution of LAI that was concentrated at the top and bottom of the canopy with an open midstory (between 10-50% of total canopy height) whereas low rugosity plots had a more even distribution of leaves. Leaf mass per area (LMA) of all broadleaved species had a strong positive correlation with cumulative gap fraction (P. strobus had a relatively

  16. Análise, por CLAE, de carotenóides de cinco linhagens de Rhodotorula HPLC analysis of carotenoids from five Rhodotorula strains

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    Fabio M. Squina

    2003-09-01

    Full Text Available Um método por cromatografia líquida de alta eficiência (CLAE foi otimizado para a análise da composição de carotenóides de cinco linhagens de Rhodotorula.A extração com ruptura mecânica da parede celular da levedura com areia tratada mostrou ser mais eficiente que a ruptura química com dimetilsulfóxido. Os carotenóides foram separados e quantificados por CLAE em coluna de C18 utilizando como fase móvel acetonitrila/metanol (0,1% trietilamina/acetato de etila (75:15:10 e 100% metanol (0,1% trietilamina entre as injeções, com vazão de 1 mL/min. Em todas as linhagens, os carotenóides majoritários encontrados foram torularrodina, toruleno, ³-caroteno e ²-caroteno. Os teores totais de carotenóides, em µg/g, foram de 251,7 em R. glutinis,123,5 em R. rubra,113,2 em R. araucariae,105,8 em R. lactosa ede 103,7 em R. minuta.A method for extraction and HPLC separation of carotenoids from fiveRhodotorula strains was optimized. The extraction by mechanical disruption of the yeast cell wall with fine treated sand was shown to be more efficient than chemical disruption with dimethylsulfoxide. The carotenoids were separated and quantified by HPLC on a C18 column using as mobile phase acetonitrile/methanol (0.1% triethylamina/ethyl acetate (75:15:10 with 100% methanol (0.1% triethylamine between the injections, at a flow rate of 1.0 mL/min. In all strains, the major carotenoids found were torularhodin, torulene, ³-carotene and ²-carotene. The total carotenoid contents, in µg/g, obtained were 251.7 for R. glutinis,123.5 for R. rubra,113.2 for R. araucariae,105.8 for R. lactosaand 103.7 for R. minuta.

  17. Fungal infections in neutropenic patients: a 8-year prospective study Infecções fúngicas em pacientes neutropênicos: estudo prospectivo de 8 anos

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    Marcio Nucci

    1995-10-01

    Full Text Available In this paper we report a eight-year prospective study designed to further characterize incidence, epidemiology, specific syndromes, treatment and prognosis associated with fungal infections in neutropenic patients. During the study period 30 fungal infections were diagnosed in 30 patients among 313 episodes of fever and neutropenia (10%. There were 15 cases of candidiasis, 5 pulmonary aspergillosis, 3 sinusitis by Aspergillus fumigatus, 5 infections by Fusarium sp., one infection by Trichosporon sp., and one infection due to Rhodotorula rubra. Blood cultures were positive in 18 cases (60%. The predisposing factors for fungal infection in multivariate analysis were the presence of central venous catheter (pCom o objetivo de melhor caracterizar incidência, epidemiologia, síndromes específicas, tratamento e prognóstico associado com infecções fúngicas sistêmicas em pacientes neutropênicos foi feito um estudo prospectivo de 8 anos. Durante este período foram diagnosticadas 30 infecções fúngicas em 30 pacientes neutropênicos febris (10%. Houve 15 casos de candidíase, 5 aspergiloses pulmonares, 3 sinusites por Aspergillus fumigatus, 5 infecções por Fusarium sp., uma infecção por Trichosporon sp., e uma infecção por Rhodotorula rubra. As hemoculturas foram positivas em 18 casos (60%. Os fatores de risco para infecção fúngica em análise multivariada foram: presença de cateter venoso central (p<0,001, duração maior de neutropenia <100/mm³ (p<0,001, uso de corticosteróides (p<0,001, bacteremia por germes gram-positivos (p=0,002 e idade menor (p=0.03. Em análise multivariada apenas recuperação da neutropenia (p<0,001 esteve associada com bom prognóstico, enquanto que o diagnóstico de infecção por Fusarium sp. (p=0,006 se correlacionou com um mau prognóstico. A taxa de óbito foi de 43%. Não houve diferença estatisticamente significante nas taxas de óbito em pacientes que receberam (52% ou não (50% terapia anti

  18. Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex

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    Nico, Leo; Englund, Ronald A.; Jelks, Howard L.

    2015-01-01

    Mozambique tilapia Oreochromis mossambicus were recently discovered in ‘Aimakapā Fishpond, a 12-hectare brackish-water wetland complex in Kaloko-Honokōhau National Historical Park, on the Island of Hawai’i. As a possible eradication method, we evaluated rotenone, a natural piscicide used in fish management and the active ingredient in plants traditionally used by indigenous Hawaiians for capturing fish. To assess rotenone’s efficacy in killing tilapia and effects on non-target species, laboratory toxicity tests involved exposing organisms to various concentrations of liquid CFT Legumine (5% rotenone) in static trials of 48-h to 72-h duration. Test organisms included: Mozambique tilapia, non-native guppy Poecilia reticulata, the non-native odonate Rambur’s forktail Ischnura ramburii, native feeble shrimp Palaemon debilis, and native ‘ōpae’ula shrimp Halocaridina rubra. All organisms and water used in tests were obtained from ‘Aimakapā (12.6–12.7 ppt salinity), or, for H. rubra, an anchialine pool (15.0–15.2 ppt salinity). Survival analyses indicated CFT Legumine concentrations >3 ppm (>0.15 mg/L rotenone) achieved 100% mortality of tilapia and 93% of guppies within 24 h, with most tilapia killed by 6 h and most guppies by 2 h. Little or no mortality was observed among invertebrate exposed to 1 to 5 mg/L CFT Legumine: 0% mortality for ‘ōpae’ula shrimp, 4% for feeble shrimp; and 16% for odonate larvae. The 48 h LC50 values for Mozambique tilapia and guppy were 0.06 and 0.11 mg/L rotenone, respectively. Results demonstrate rotenone’s potential for non-native fish eradication in brackish-water habitats, with benefit of low mortality to certain macro-invertebrates. High rotenone tolerance displayed by ‘ōpae’ula shrimp is noteworthy. Invasive fish are common in anchialine pools, threatening existence of shrimp and other invertebrate fauna. Although rotenone’s effects on freshwater organisms have been well studied, our research

  19. Distribution of Malassezia species on the skin of patients with atopic dermatitis, psoriasis, and healthy volunteers assessed by conventional and molecular identification methods.

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    Jagielski, Tomasz; Rup, Elżbieta; Ziółkowska, Aleksandra; Roeske, Katarzyna; Macura, Anna B; Bielecki, Jacek

    2014-03-07

    The Malassezia yeasts which belong to the physiological microflora of human skin have also been implicated in several dermatological disorders, including pityriasis versicolor (PV), atopic dermatitis (AD), and psoriasis (PS). The Malassezia genus has repeatedly been revised and it now accommodates 14 species, all but one being lipid-dependent species. The traditional, phenotype-based identification schemes of Malassezia species are fraught with interpretative ambiguities and inconsistencies, and are thus increasingly being supplemented or replaced by DNA typing methods. The aim of this study was to explore the species composition of Malassezia microflora on the skin of healthy volunteers and patients with AD and PS. Species characterization was performed by conventional, culture-based methods and subsequently molecular techniques: PCR-RFLP and sequencing of the internal transcribed spacer (ITS) 1/2 regions and the D1/D2 domains of the 26S rRNA gene. The Chi-square test and Fisher's exact test were used for statistical analysis. Malassezia sympodialis was the predominant species, having been cultured from 29 (82.9%) skin samples collected from 17 out of 18 subjects under the study. Whereas AD patients yielded exclusively M. sympodialis isolates, M. furfur isolates were observed only in PS patients. The isolation of M. sympodialis was statistically more frequent among AD patients and healthy volunteers than among PS patients (P < 0.03). Whether this mirrors any predilection of particular Malassezia species for certain clinical conditions needs to be further evaluated. The overall concordance between phenotypic and molecular methods was quite high (65%), with the discordant results being rather due to the presence of multiple species in a single culture (co-colonization) than true misidentification. All Malassezia isolates were susceptible to cyclopiroxolamine and azole drugs, with M. furfur isolates being somewhat more drug tolerant than other Malassezia species

  20. [Epidemiological transition of mycosis diseases in sub-Saharan Africa: from surface to depth].

    Science.gov (United States)

    Chandenier, J; Desoubeaux, G

    2015-02-01

    Fungi are schematically responsible for three distinct kinds of infections: superficial mycoses, subcutaneous and deep ones. The current socio-epidemiological transition observed in sub-Saharan Africa does not actually lead to similar consequences regarding these three categories of fungal entities. For instance, it has long been known that superficial mycoses are very prevalent in tropical areas, since they are partly due to the warm climate and the promiscuity. They are mostly caused by dermatophytic fungi or Malassezia sp. (Pityriasis versicolor). Subcutaneous mycoses are rarer, and usually due to dimorphic fungi which are accidentally inoculated into the body after a skin injury or a trauma. Sometimes very spectacular, the clinical outcome is then described as chronic. Thus, chromoblastomycosis, rhinoentomophtoromycosis or mycetoma are some examples of subcutaneous mycoses which remain well-known by practitioners of endemic countries. Deep mycoses (or invasive / systemic mycoses) are defined by fungal infections of deep anatomical sites that should be normally sterile. By contrast with the other entities mentioned above, the outcome may be rapidly fatal for the patient. One of the most outstanding examples was the great increasing of cryptococcal meningitis during the HIV outbreak in the 80'. A few other similar mycoses may be feared in a near future, since they usually occur in contexts of important immunosuppression which are about to be definitely experienced in Africa: overall increase of chronic diseases like diabetes, lengthening life expectancy and its associated diseases, widespread medical practices which were only seen in advanced intensive care units, onco-haematology departments or graft centers so far. Thus, the deep mycoses will inevitably increase in Africa, as they did in all developed countries over the last two decades. The consequences will not only be limited to the clinical management as described above: the diagnostic approach is also

  1. Burden of leprosy in Malawi: community camp-based cross-sectional study

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    Msyamboza Kelias P

    2012-08-01

    Full Text Available Abstract Background Although leprosy was eliminated globally in 2000, the disease continues to be the significant cause of peripheral neuropathy, disability and disfigurement in some developing countries. However, recent population-based prevalence data are lacking to inform evidence-based renewed commitment for the final push for leprosy elimination at national and sub-national levels. Methods Community camp-based cross-sectional descriptive study was conducted in four selected districts. World Health Organisation guidelines and tools for leprosy elimination monitoring were used to evaluate the Malawi National Leprosy Programme. Results A total of 6,338 people (60% females, 35% children aged less than 15 years were examined for leprosy and other skin diseases. Prevalence of skin diseases was 18%, the commonest being fungal (9%, eczema/dermatitis (3% and leprosy (1%. Of the fungal skin conditions, pityriasis versicolor and Tinea capatis were the commonest (22% and 21% respectively then Tinea corporis (9%, Tinea cruris (6% and Tinea pedis (2%. A total of 66 leprosy cases were detected out of 6,338 people screened giving a prevalence of 104.1 per 10,000 population (range by district 67.1 to 194.1. Of the leprosy cases, 37 were new, 6 were defaulters and 23 were on treatment, 30 were females and 9 were children aged less than 15 years old. Of the 37 new leprosy cases, 9 (24.3% were children, 25 (67.6% had 1–5 leprosy lesions and 8 (21.6% had grade 2 disability. The most frequent location of leprosy lesions was the head and neck (24.1%, arms (24.1%, chest (17.2%, legs (13.8%, back (13.8% and abdomen (7.0%. Between 2006 and 2011, trends of leprosy prevalence and detection increased, prevalence/detection ratios were over 1 and cure rates by cohort analysis of 2009 multibacillary and 2010 paucibacillary cases were 33% and 63% respectively far below the expected 80% although the national prevalence remained at less than 1 case per 10

  2. Single dose (400 mg) versus 7 day (200 mg) daily dose itraconazole in the treatment of tinea versicolor: a randomized clinical trial.

    Science.gov (United States)

    Wahab, M A; Ali, M E; Rahman, M H; Chowdhury, S A; Monamie, N S; Sultana, N; Khondoker, L

    2010-01-01

    Tinea (pityriasis) versicolor is a superficial fungal infection and one of the most commonly found pigmentary disorders of skin caused by the yeast Malassezia. Multiple topical as well as systemic therapies are available for treatment. Systemic therapies are used for extensive disease, frequent relapse or where topical agents have failed. The aim that translates the rationale of the study was to compare the efficacy, safety, tolerability and cost effectiveness of single dose 400mg versus 7 day 200 mg daily dose of itraconazole in the treatment of tinea versicolor. A clinical study was done to compare the efficacy of single dose (400 mg) of itraconazole and 7 day 200 mg daily dose of itraconazole in the treatment of extensive tinea versicolor. Total 60 patients (aged 18-50 years) were selected for the study during the period of June 2007 to May 2008 in the department of Dermatology of three different hospitals in Bangladesh. Cases having with extensive involvement, diagnosed clinically and confirmed by wood's lamp and KOH microscopy were taken. Patients were randomly allocated into equal groups. Group A was given single dose 400 mg itraconazole and Group B was given 7 day 200 mg daily itraconazole. Fifty three (88%) male and 7(12%) female were included in the study. The mean age of group A was 32.37+/-9 years and in group B 33.23+/-8 years. The mean duration of the disease in group A was 2.63+/-2 months and 2.76+/-2 months in group B. In group A clinical responders was found cure 22(73.33%) and improvement 5(16.33%) and in group B it was found cure 24(79.99%) and improvement 4(13.33%). The measure at the End point (EP1) equals to 90% response and in-group B it was found cure 24 (79.99%) and improvement 4(13.33%). (Here the End point EP2) equals to 93.33%. The EP clinical analysis however shows 91.66% response. Both single dose and 7 day daily dose of itraconazole can be effective in the treatment of tinea versicolor with extensive involvement but single dose appears

  3. Tree Productivity Enhanced with Conversion from Forest to Urban Land Covers.

    Science.gov (United States)

    Briber, Brittain M; Hutyra, Lucy R; Reinmann, Andrew B; Raciti, Steve M; Dearborn, Victoria K; Holden, Christopher E; Dunn, Allison L

    2015-01-01

    Urban areas are expanding, changing the structure and productivity of landscapes. While some urban areas have been shown to hold substantial biomass, the productivity of these systems is largely unknown. We assessed how conversion from forest to urban land uses affected both biomass structure and productivity across eastern Massachusetts. We found that urban land uses held less than half the biomass of adjacent forest expanses with a plot level mean biomass density of 33.5 ± 8.0 Mg C ha(-1). As the intensity of urban development increased, the canopy cover, stem density, and biomass decreased. Analysis of Quercus rubra tree cores showed that tree-level basal area increment nearly doubled following development, increasing from 17.1 ± 3.0 to 35.8 ± 4.7 cm(2) yr(-1). Scaling the observed stem densities and growth rates within developed areas suggests an aboveground biomass growth rate of 1.8 ± 0.4 Mg C ha(-1) yr(-1), a growth rate comparable to nearby, intact forests. The contrasting high growth rates and lower biomass pools within urban areas suggest a highly dynamic ecosystem with rapid turnover. As global urban extent continues to grow, cities consider climate mitigation options, and as the verification of net greenhouse gas emissions emerges as critical for policy, quantifying the role of urban vegetation in regional-to-global carbon budgets will become ever more important.

  4. Field-scale study of the influence of differing remediation strategies on trace metal geochemistry in metal mine tailings from the Irish Midlands.

    Science.gov (United States)

    Perkins, William T; Bird, Graham; Jacobs, Suzanne R; Devoy, Cora

    2016-03-01

    Mine tailings represent a globally significant source of potentially harmful elements (PHEs) to the environment. The management of large volumes of mine tailings represents a major challenge to the mining industry and environmental managers. This field-scale study evaluates the impact of two highly contrasting remediation approaches to the management and stabilisation of mine tailings. The geochemistry of the tailings, overlying amendment layers and vegetation are examined in the light of the different management approaches. Pseudo-total As, Cd and Pb concentrations and solid-state partitioning (speciation), determined via sequential extraction, were established for two Tailings Management Facilities (TMFs) in Ireland subjected to the following: (1) a 'walk-away' approach (Silvermines) and (2) application of an amendment layer (Galmoy). PHE concentrations in roots and herbage of grasses growing on the TMFs were also determined. Results identify very different PHE concentration profiles with depth through the TMFs and the impact of remediation approach on concentrations and their potential bioavailability in the rooting zone of grass species. Data also highlight the importance of choice of grass species in remediation approaches and the benefits of relatively shallow-rooting Agrostis capillaris and Festuca rubra varieties. In addition, data from the Galmoy TMF indicate the importance of regional soil geochemistry for interpreting the influence of the PHE geochemistry of capping and amendment layers applied to mine tailings.

  5. Monograph: In vitro efficacy of 30 ethnomedicinal plants used by Indian aborigines against 6 multidrug resistant Gram-positive pathogenic bacteria

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    Mahesh Chandra Sahu

    2015-02-01

    Full Text Available Objective: To monitor in vitro antibacterial activities of leaf extracts of 30 common and noncommon plants used by aborigines in Kalahandi district, Odisha, against 6 clinically isolated multidrug resistant (MDR Gram-positive bacteria of 3 genera, Staphylococcus, Streptococcus, and Enterococcus. Methods: The antibiotic sensitivity patterns of 6 bacterial strains were studied with the diskdiffusion method with 1 7 antibiotics belonging to 8 classes. Monitored plants have ethnomedicinal use and several are used as traditional medicines. Antibacterial properties were studied with the agar-well diffusion method. Minimum inhibitory concentration and minimum bactericidal concentration values of ethanolic and aqueous extracts of plants were determined by the microbroth-dilution method. Results: Ethanolic plant-extracts had the better antibacterial potencies in comparison to their corresponding aqueous extracts. Plants with most conspicuous antibacterial properties in controlling MDR strains of Gram-positive bacteria were aqueous and ethanolic extracts of plants, Ixora coccinea, Nyctanthes arbor-tristis, Polycythaemia rubra, Pongamia pinnata and Syzygium cumini, Carthamus tinctorius, Cucurbita maxima, Murraya koenigii, Leucas aspera, Plumbago indica and Psidium guajava. Ethanolic extracts of most plants had phytochemicals, alkaloids, glycosides, terpenoids, reducing sugars, saponins, tannins, flavonoids and steroids. Conclusions: These plants could be used further for the isolation of pure compounds to be used as complementary non-microbial antimicrobial medicines.

  6. Investigation of Polarization Phase Difference Related to Forest Fields Characterizations

    Science.gov (United States)

    Majidi, M.; Maghsoudi, Y.

    2013-09-01

    The information content of Synthetic Aperture Radar (SAR) data significantly included in the radiometric polarization channels, hence polarimetric SAR data should be analyzed in relation with target structure. The importance of the phase difference between two co-polarized scattered signals due to the possible association between the biophysical parameters and the measured Polarization Phase Difference (PPD) statistics of the backscattered signal recorded components has been recognized in geophysical remote sensing. This paper examines two Radarsat-2 images statistics of the phase difference to describe the feasibility of relationship with the physical properties of scattering targets and tries to understand relevance of PPD statistics with various types of forest fields. As well as variation of incidence angle due to affecting on PPD statistics is investigated. The experimental forest pieces that are used in this research are characterized white pine (Pinus strobus L.), red pine (Pinus resinosa Ait.), jack pine (Pinus banksiana Lamb.), white spruce (Picea glauca (Moench Voss), black spruce (Picea mariana (Mill) B.S.P.), poplar (Populus L.), red oak (Quercus rubra L.) , aspen and ground vegetation. The experimental results show that despite of biophysical parameters have a wide diversity, PPD statistics are almost the same. Forest fields distributions as distributed targets have close to zero means regardless of the incidence angle. Also, The PPD distribution are function of both target and sensor parameters, but for more appropriate examination related to PPD statistics the observations should made in the leaf-off season or in bands with lower frequencies.

  7. USE OF AMAZONIAN SPECIES FOR AGING DISTILLED BEVERAGES: PHYSICAL AND CHEMICAL WOOD ANALYSIS

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    Jonnys Paz Castro

    2015-06-01

    Full Text Available The process of storing liquor in wooden barrels is a practice that aims to improve the sensory characteristics, such as color, aroma and flavor, of the beverage. The quality of the liquor stored in these barrels depends on wood characteristics such as density, permeability, chemical composition, anatomy, besides the wood heat treatment used to fabricate the barrels. Brazil has a great diversity of forests, mainly in the north, in the Amazon. This region is home to thousands of tree species, but is limited to the use of only a few native species to store liquors. The objective of this study was to determine some of the physical and chemical characteristics for four Amazon wood species. The results obtained in this study will be compared with others from woods that are traditionally used for liquor storage. The species studied were angelim-pedra (Hymenolobium petraeum Ducke cumarurana (Dipteryx polyphylla (Huber Ducke, jatobá (Hymenaea courbaril L. and louro-vermelho (Nectandra rubra (Mez CK Allen. The trees were collected from Precious Woods Amazon Company forest management area, in Silves, Amazonas. Analyzes such as: concentration of extractives, lignin amount, percentage of minerals (ash and tannin content, density, elemental analysis (CHNS-O and thermal analysis were done. It was observed that the chemical composition (lignin, holocellulose and elemental analysis (percentage of C, H, N and O of the woods have significant differences. The jatobá wood presented higher tannin content, and in the thermal analysis, was that which had the lowest mass loss.

  8. How much does climate change threaten European forest tree species distributions?

    Science.gov (United States)

    Dyderski, Marcin K; Paź, Sonia; Frelich, Lee E; Jagodziński, Andrzej M

    2018-03-01

    Although numerous species distribution models have been developed, most were based on insufficient distribution data or used older climate change scenarios. We aimed to quantify changes in projected ranges and threat level by the years 2061-2080, for 12 European forest tree species under three climate change scenarios. We combined tree distribution data from the Global Biodiversity Information Facility, EUFORGEN, and forest inventories, and we developed species distribution models using MaxEnt and 19 bioclimatic variables. Models were developed for three climate change scenarios-optimistic (RCP2.6), moderate (RCP4.5), and pessimistic (RPC8.5)-using three General Circulation Models, for the period 2061-2080. Our study revealed different responses of tree species to projected climate change. The species may be divided into three groups: "winners"-mostly late-successional species: Abies alba, Fagus sylvatica, Fraxinus excelsior, Quercus robur, and Quercus petraea; "losers"-mostly pioneer species: Betula pendula, Larix decidua, Picea abies, and Pinus sylvestris; and alien species-Pseudotsuga menziesii, Quercus rubra, and Robinia pseudoacacia, which may be also considered as "winners." Assuming limited migration, most of the species studied would face a significant decrease in suitable habitat area. The threat level was highest for species that currently have the northernmost distribution centers. Ecological consequences of the projected range contractions would be serious for both forest management and nature conservation. © 2017 John Wiley & Sons Ltd.

  9. Spontaneous puerperal extraperitoneal bladder wall rupture in young woman with diagnostic dilemma.

    Science.gov (United States)

    Sabat, Debabrat Kumar; Panigrahi, Pradeep Kumar; Sahoo, Ranjan Kumar; Acharya, Mousumi; Sahu, Mahesh Ch

    2015-01-01

    A young female presented with an acute abdominal pain and oliguria for 1 week following normal vaginal delivery. No history of hematuria was present. Patient was having lochia rubra. Sealed uterine rupture was suspected clinically. Initial ultrasound of the patient showed distended urinary bladder containing Foley catheter ballon with clamping of Foley catheter and particulate ascites. Abdominal paracentesis revealed hemorrhagic fluid. Contrast-enhanced computed tomography of abdomen revealed ascites, distended urinary bladder and no extraluminal contrast extravasation in delayed scan. As patient condition deteriorated, repeat ultrasound guided abdominal paracentesis was done which revealed transudative peritoneal collection with distended bladder. Cystoscopy revealed urinary bladder ruptures with exudate sealing the rupture site. Exploratory laparotomy was done and a diagnosis of extraperitoneal bladder rupture was confirmed. The rent was repaired in layers. She was put on continuous bladder drainage for 3 weeks followed by bladder training. It presented in a unique way as there was hemorrhagic peritoneal tap, no macroscopic hematuria and urinary bladder was distended in spite of urinary bladder wall rupture which delayed the diagnosis and treatment. Complete emptying of urinary bladder before second stage of labor and during postpartum period with perineal repair is mandatory to prevent urinary bladder rupture.

  10. Tree Productivity Enhanced with Conversion from Forest to Urban Land Covers.

    Directory of Open Access Journals (Sweden)

    Brittain M Briber

    Full Text Available Urban areas are expanding, changing the structure and productivity of landscapes. While some urban areas have been shown to hold substantial biomass, the productivity of these systems is largely unknown. We assessed how conversion from forest to urban land uses affected both biomass structure and productivity across eastern Massachusetts. We found that urban land uses held less than half the biomass of adjacent forest expanses with a plot level mean biomass density of 33.5 ± 8.0 Mg C ha(-1. As the intensity of urban development increased, the canopy cover, stem density, and biomass decreased. Analysis of Quercus rubra tree cores showed that tree-level basal area increment nearly doubled following development, increasing from 17.1 ± 3.0 to 35.8 ± 4.7 cm(2 yr(-1. Scaling the observed stem densities and growth rates within developed areas suggests an aboveground biomass growth rate of 1.8 ± 0.4 Mg C ha(-1 yr(-1, a growth rate comparable to nearby, intact forests. The contrasting high growth rates and lower biomass pools within urban areas suggest a highly dynamic ecosystem with rapid turnover. As global urban extent continues to grow, cities consider climate mitigation options, and as the verification of net greenhouse gas emissions emerges as critical for policy, quantifying the role of urban vegetation in regional-to-global carbon budgets will become ever more important.

  11. Definition of Eight Mulberry Species in the Genus Morus by Internal Transcribed Spacer-Based Phylogeny.

    Directory of Open Access Journals (Sweden)

    Qiwei Zeng

    Full Text Available Mulberry, belonging to the order Rosales, family Moraceae, and genus Morus, has received attention because of both its economic and medicinal value, as well as for its important ecological function. The genus Morus has a worldwide distribution, however, its taxonomy remains complex and disputed. Many studies have attempted to classify Morus species, resulting in varied numbers of designated Morus spp. To address this issue, we used information from internal transcribed spacer (ITS genetic sequences to study the taxonomy of all the members of generally accepted genus Morus. We found that intraspecific 5.8S rRNA sequences were identical but that interspecific 5.8S sequences were diverse. M. alba and M. notabilis showed the shortest (215 bp and the longest (233 bp ITS1 sequence length, respectively. With the completion of the mulberry genome, we could identify single nucleotide polymorphisms within the ITS locus in the M. notabilis genome. From reconstruction of a phylogenetic tree based on the complete ITS data, we propose that the Morus genus should be classified into eight species, including M. alba, M. nigra, M. notabilis, M. serrata, M. celtidifolia, M. insignis, M. rubra, and M. mesozygia. Furthermore, the classification of the ITS sequences of known interspecific hybrid clones into both paternal and maternal clades indicated that ITS variation was sufficient to distinguish interspecific hybrids in the genus Morus.

  12. Definition of Eight Mulberry Species in the Genus Morus by Internal Transcribed Spacer-Based Phylogeny.

    Science.gov (United States)

    Zeng, Qiwei; Chen, Hongyu; Zhang, Chao; Han, Minjing; Li, Tian; Qi, Xiwu; Xiang, Zhonghuai; He, Ningjia

    2015-01-01

    Mulberry, belonging to the order Rosales, family Moraceae, and genus Morus, has received attention because of both its economic and medicinal value, as well as for its important ecological function. The genus Morus has a worldwide distribution, however, its taxonomy remains complex and disputed. Many studies have attempted to classify Morus species, resulting in varied numbers of designated Morus spp. To address this issue, we used information from internal transcribed spacer (ITS) genetic sequences to study the taxonomy of all the members of generally accepted genus Morus. We found that intraspecific 5.8S rRNA sequences were identical but that interspecific 5.8S sequences were diverse. M. alba and M. notabilis showed the shortest (215 bp) and the longest (233 bp) ITS1 sequence length, respectively. With the completion of the mulberry genome, we could identify single nucleotide polymorphisms within the ITS locus in the M. notabilis genome. From reconstruction of a phylogenetic tree based on the complete ITS data, we propose that the Morus genus should be classified into eight species, including M. alba, M. nigra, M. notabilis, M. serrata, M. celtidifolia, M. insignis, M. rubra, and M. mesozygia. Furthermore, the classification of the ITS sequences of known interspecific hybrid clones into both paternal and maternal clades indicated that ITS variation was sufficient to distinguish interspecific hybrids in the genus Morus.

  13. Response of rocky reef top predators (Serranidae: Epinephelinae in and around marine protected areas in the Western Mediterranean Sea.

    Directory of Open Access Journals (Sweden)

    Carlos Werner Hackradt

    Full Text Available Groupers species are extremely vulnerable to overfishing and many species are threatened worldwide. In recent decades, Mediterranean groupers experienced dramatic population declines. Marine protected areas (MPAs can protect populations inside their boundaries and provide individuals to adjacent fishing areas through the process of spillover and larval export. This study aims to evaluate the effectiveness of six marine reserves in the Western Mediterranean Sea to protect the populations of three species of grouper, Epinephelus marginatus, Epinephelus costae and Mycteroperca rubra, and to understand in which circumstances MPAs are able to export biomass to neighbouring areas. All the studied MPAs, except one where no grouper was observed, were able to maintain high abundance, biomass and mean weight of groupers. Size classes were more evenly distributed inside than outside MPAs. In two reserves, biomass gradients could be detected through the boundaries of the reserve as an indication of spillover. In some cases, habitat structure appeared to exert a great influence on grouper abundance, biomass and mean individual weight, influencing the gradient shape. Because groupers are generally sedentary animals with a small home range, we suggest that biomass gradients could only occur where groupers attain sufficient abundance inside MPA limits, indicating a strongly density-dependent process.

  14. [Features of Professor Ma Kun's medication in treating ovulatory infertility].

    Science.gov (United States)

    Tong, Ya-Jing; Zhang, Hui-Xian; Chen, Yan-Xia; Dong, Mei-Ling; Ma, Kun

    2017-12-01

    In order to analyze Professor Ma Kun's medication in treating anovulatory infertility, her prescriptions for treating anovulatory infertility in 2012-2015 were collected. The medication features and the regularity of prescriptions were mined by using traditional Chinese medicine inheritance support system, association rules, complex system entropy clustering and other mining methods. Finally, a total of 684 prescriptions and 300 kinds of herbs were screened out, with a total frequency of 11 156 times; And 68 core combinations and 8 new prescriptions were mined. The top three frequently used herbs by effect were respectively tonic herb, blood circulation promoting herb, and Qi-circulation promoting herb. The top three tastes were sweetness, bitterness and pungent flavor. The results showed 28 herbs with a high frequency of ≥100.The top 10 frequently used herbs were respectively Angelica Sinensis Radix, Cyperi Rhizoma, Chuanxiong Rhizome, Paeoniae Radix Rubra, Cyathulae Radix, Taxilli Herba, Cuscutae Semen, Codonopsis Radix, Ligustri Lucidi Fructus, Paeoniae Albaand Paeoniae Radix Alba. The association rules analysis showed commonly used herbal pairs, including Rehmanniae Radix Preparata-Chuanxiong Rhizome, Rehmanniae Radix Preparata-Angelica Sinensis Radix, Cuscutae Semen-Dipsaci Radix. In conclusion, Professor Ma has treated anovulatory infertility by nourishing the kidney and activating blood throughout the treatment course, and attached the importance to the relationship between Qi and blood and there gulation of liver, spleen and kidney in treating anovulatory infertility. Copyright© by the Chinese Pharmaceutical Association.

  15. A review of metal (Pb and Zn) sensitive and pH tolerant bioassay organisms for risk screening of metal-contaminated acidic soils

    International Nuclear Information System (INIS)

    Chapman, E.Emily V.; Dave, Göran; Murimboh, John D.

    2013-01-01

    To improve risk estimates at the screening stage of Ecological Risk Assessment (ERA), short duration bioassays tailored to undisturbed soil cores from the contaminated site could be useful. However, existing standardized bioassays use disturbed soil samples and often pH sensitive organisms. This is a problem as naturally acidic soils are widespread. Changing soil properties to suit the test organism may change metal bioavailability, leading to erroneous risk estimates. For bioassays in undisturbed soil cores to be effective, species able to withstand natural soil properties must be identified. This review presents a critical examination of bioassay species' tolerance of acidic soils and sensitivity to metal contaminants such as Pb and Zn. Promising organisms include; Dendrobaena octaedra, Folsomia candida, Caenorhabditis elegans, Oppia nitens, Brassica rapa, Trifolium pratense, Allium cepa, Quercus rubra and Acer rubrum. The MetSTICK test and the Bait lamina test were also identified as suitable microorganism tests. -- Highlights: •Risk screening of metal contaminated soils should consider metal bioavailability. •Metal bioavailability is dependent on soil properties such as pH. •Many standardized bioassay organisms are sensitive to acidic soils. •This review identifies acid tolerant and metal sensitive bioassays and species. •The identified tests can improve risk screening of acidic metal contaminated soil. -- This review identifies bioassay species able to withstand naturally acidic soils while being sensitive to metal contaminants

  16. Formulating natural based cosmetic product - irradiated herbal lip balm

    International Nuclear Information System (INIS)

    Seri Chempaka Mohd Yusof; Ros Anita Ahmad Ramli; Foziah Ali; Zainab Harun

    2007-01-01

    Herbal lip balm was formulated in efforts to produce a safe product, attractive with multifunctional usage i.e. prevent chap lips, reduce mouth odour and benefits in improving the health quality. Problems faced in constructing formulations of herbal lip balm were focused to the extraction of anthocyanins, the stability of the pigments in the formulations and changes of colour during irradiation for the sterilization of herbal lip balm. Natural pigment, anthocyanin was used as a colorant agent in herbal lip balm, obtained from various herbs and vegetables i.e. Hibiscus sabdariffa L. (roselle), Brassica oleracea var. capitata f. rubra (red cabbage) and Daucus carota (carrot). Water based extraction method was used in extracting the anthocyanins. The incorporation of honey in the formulations improved the colour of the lip balm. The usage of plant based ingredient i.e. cocoa butter substituting the normal based ingredient i.e. petroleum jelly in lip balm also affecting the colour of herbal lip balm. Irradiation at 2.5, 5.0 and 10 kGy was carried out as preservation and reducing of microbial load of the herbal lip balm and changes in colour were observed in formulations irradiated at 10 kGy. (Author)

  17. Plants growing on contaminated and brownfield sites appropriate for use in Organisation for Economic Co-operation and Development terrestrial plant growth test.

    Science.gov (United States)

    Sinnett, Danielle E; Lawrence, Victoria K; Hutchings, Tony R; Hodson, Mark E

    2011-01-01

    The Organisation for Economic Co-operation and Development (OECD) terrestrial plant test is often used for the ecological risk assessment of contaminated land. However, its origins in plant protection product testing mean that the species recommended in the OECD guidelines are unlikely to occur on contaminated land. Six alternative species were tested on contaminated soils from a former Zn smelter and a metal fragmentizer with elevated concentrations of Cd, Cu, Pb, and Zn. The response of the alternative species was compared with that of two species recommended by the OECD: Lolium perenne (perennial ryegrass) and Trifolium pratense (red clover). Urtica dioica (stinging nettle) and Poa annua (annual meadowgrass) had low emergence rates in the control soil and so may be considered unsuitable. Festuca rubra (Chewings fescue), Holcus lanatus (Yorkshire fog), Senecio vulgaris (common groundsel), and Verbascum thapsus (great mullein) offer good alternatives to the OECD species. In particular, H. lanatus and S. vulgaris were more sensitive to the soils with moderate concentrations of Cd, Cu, Pb, and Zn than the OECD species. © 2010 SETAC.

  18. Spectroscopic studies, antimicrobial activities and crystal structures of N-(2-hydroxy-3-methoxybenzalidene)1-aminonaphthalene

    Science.gov (United States)

    Ünver, Hüseyin; Yıldız, Mustafa; Dülger, Başaran; Özgen, Özen; Kendi, Engin; Durlu, Tahsin Nuri

    2005-03-01

    Schiff base N-(2-hydroxy-3-methoxybenzalidene)1-aminonaphthalene has been synthesized from the reaction of 2-hydroxy-3-methoxybenzaldehyde with 1-aminonaphthalene. The compound were characterized by elemental analysis, FT-IR, 1H NMR, 13C NMR and UV-visible techniques. The UV-visible spectra of the Schiff base were studied in polar and nonpolar solvents in acidic and basic media. The structure of the compound has been examined cyrstallographically. There are two independent molecules in the asymmetric unit. It crystallizes in the monoclinic space group P21/c, with unit cell parameters: a=14, 602(2), b=5,800(1), c=16, 899(1) Å, V=1394.4(2) Å 3, Dx=1.321 g cm -3 and Z=4. The crystal structure was solved by direct methods and refined by full-matrix least squares to a find R=0.041 of for 1179 observed reflections. The title compound's antimicrobial activities also have been studied. The antimicrobial activities of the ligand has been screened in vitro against the organisms Escherichia coli ATCC 11230, Staphylococcus aureus ATCC 6538, Klebsiella pneumoniae UC57, Micrococcus luteus La 2971, Proteus vulgaris ATCC 8427, Pseudomonas aeruginosa ATCC 27853, Mycobacterium smegmatis CCM 2067, Bacillus cereus ATCC 7064 and Listeria monocytogenes ATCC 15313, the yeast cultures Candida albicans ATCC 10231, Kluyveromyces fragilis NRRL 2415, Rhodotorula rubra DSM 70403, Debaryomyces hansenii DSM 70238 and Hanseniaspora guilliermondii DSM 3432.

  19. Hydrodistillation and in situ microwave-generated hydrodistillation of fresh and dried mint leaves: a comparison study.

    Science.gov (United States)

    Orio, Laura; Cravotto, Giancarlo; Binello, Arianna; Pignata, Giuseppe; Nicola, Silvana; Chemat, Farid

    2012-12-01

    Hydrodistillation (HD) has been used since ancient times for the extraction of essential oils (EO). Despite the intrinsic limitations of this technique, it remains the most common method both in the laboratory and on an industrial scale. The main drawbacks are the long extraction time involved and the risk of thermal degradation. Over the last decade, microwave-assisted extraction (MAE) and in situ microwave-generated hydrodistillation (MGH) have been shown to be the most promising techniques in improving plant extraction and hydrodistillation. In this study we compare HD with MGH in the extraction of several mint species cultivated in Piedmont: Mentha spicata L. var. rubra, Mentha spicata L. var. viridis and Mentha piperita L. MGH requires either fresh plant or rehydrated material, it is extremely fast and allows a reduction in energy consumption and overall cost. All the EO have been analyzed by gas chromatography-mass spectrometry. A mechanism of microwave-generated essential oil extraction has been proposed to explain the differences in the composition of the oil obtained from this environmentally friendly technique. The yields and composition percentages of the EO obtained by HD and in situ MGH of fresh and dried mint leaves lie in a relatively narrow range, although MGH is faster. MW polarization effects and the water solubility of the components influence extract composition. Copyright © 2012 Society of Chemical Industry.

  20. Peptide Nucleic Acid Based Molecular Authentication for Identification of Four Medicinal Paeonia Species Using Melting Array Analysis of the Internal Transcribed Spacer 2 Region

    Directory of Open Access Journals (Sweden)

    Wook Jin Kim

    2017-11-01

    Full Text Available Accurate taxonomic identification of plant materials in herbal medicines is important for product quality control. The genus Paeonia (Saxifragales is the source of the herbal preparations Paeoniae Radix (Paeoniae Radix Alba and Paeoniae Radix Rubra and Moutan Radicis Cotex. However, confusion has arisen regarding their contents due to linguistic and taxonomic ambiguities, similar morphologies and different definitions of Paeoniae Radix in the Korean and Chinese national pharmacopoeias, leading to the distribution of adulterated products. To develop a method for identifying the four Paeonia species used in these medicines, three fluorescently-labeled peptide nucleic acid (PNA probes were designed against ITS2 sequences containing single nucleotide polymorphisms (SNPs and used in a real-time PCR melting curve assay. Each of the four Paeonia species was accurately identified using this analysis. The accuracy and analytical stability of the PNA melting curve assay was confirmed using commercially available samples of the four Paeonia species. This assay is a reliable genetic tool to distinguish between different Paeonia-derived herbal medicines and identify the botanical origins of Paeoniae Radix and Moutan Radicis Cortex. This technique may also contribute to quality control and standardization of herbal medicines by providing a reliable authentication tool and preventing the distribution of inauthentic adulterants.