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  • 11
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 593-593 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Dry kidney bean seeds were ground and extracted with 50 per cent alcohol. The extract was treated with mercurie acetate, and the resultant precipitate was separated and decomposed with hydrogen suiphide. After removal of mercuric sulphide, the solution was passed through a column of suiphonic acid ...
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 739-742 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Discovery, Occurrence and Metabolic Significance of Asparagine and Glutamine A SPARAGINE and glutamine are the only amides l\. definitely known to occur in plants in quantity. Occurring together and in relatively large amount, they may account for a large part of the soluble nitrogen of many ...
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 190 (1961), S. 718-719 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Virtanen and Laine3 isolated beta-alanine from the root nodule bacteria of peas, but there is no published report of the isolation of beta-alanine from higher plants. In the process of isolating beta-aminoiso-butyric acid from iris bulbs4, beta-alanine has been obtained in crystalline form and ...
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Melbourne, Australia : Blackwell Science Pty
    Australasian journal of dermatology 42 (2001), S. 0 
    ISSN: 1440-0960
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We present an immunocompetent man with extensive warts on the hands, refractory to a number of conventional treatment modalities and causing substantial morbidity and impairment of normal function. Isolated limb infusion (regional intra-arterial chemotherapy) with melphalan and actinomycin D was performed, with substantial clearing of the warts within 2 months. Treatment-induced morbidity was limited to mild local erythema and oedema which resolved within 3 weeks. After 9 months’ follow up, the patient had only a few residual warts and was able to resume normal activities.
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 21 (1994), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The haemodynamic effects of intravenous nitric oxide inhibitor, N-nitro-L-arginine (NOLA), were examined in four conscious non-restrained baboons (Papio hamadryas). Mean arterial pressure, (MAP), systemic vascular resistance (SVR) and cardiac output (CO) were measured at timed intervals up to 24 h after a bolus injection of NOLA.2. N-nitro-L-arginine increased blood pressure in a dose-dependent manner up to 9.5mg/kg. Increases in blood pressure were accompanied by increases in SVR and decreases in CO, with a significant fall in heart rate.3. One animal received 9.5 mg/kg NOLA and became unconscious, suggesting cerebral vasospasm.4. Vascular effects of nitric oxide contribute significantly to the regulation of arterial blood pressure under physiological conditions in the baboon.
    Type of Medium: Electronic Resource
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  • 16
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les caractéristiques cliniques et histologiques de 13 cas de mélanome malin chez des enfants âgés de moins de 13 ans dans la région de New South Wales, Australie, ont été comparées à celles d'un groupe contrôle de 15 naevi de Spitz, dont quatre atypiques et deux de composante naevocellulaire. Six de ces lésions avaient été classées auparavant comme malignes. Les observations objectives effectuées par un ou plusieurs anatomopathologistes, expérimentés dans les lésions mélanocytiques, et les faits cliniques, recueillis à partir des dossiers de l'Unité de Soins pour Mélanome de Sydney, ont été entrées dans un protocole d'analyse détaillé. L'analyse a été effectuée avec un logiciel SPSS-X sur un ordinateur VAS. Six des 13 enfants atteints de mélanome sont morts. Les caractéristiques les plus fréquemment retrouvées étaient l'hémorragie, l'ulcération, le prurit et la couleur noire ou versicolore. Une histoire récente d'élargissement ou d'intensification de la couleur a été notée dans la majorité des mélanomes malins et des naevi de Spitz. Dans cette série, les critères de malignité ont associé des mitoses à moins de 0.25 mm de la marge dermique du mélanome, une fréquence de mitoses supérieure à 2/mm2 de derme, la présence d'ulcération, d'un exsudat de surface, de granules pigmentés larges et une différenciation de cellules claires. L'épaisseur médiane des mélanomes malins était de 1.3 mm mais, chez quatre des six enfants qui sont morts, l'épaisseur médiane était de 2.9 mm. En faveur d'un naevi de Spitz, on retenait l'absence de mitose, la prédominance de cellules fusiformes et une maturation diffuse. L'épaisseur médiane des naevi de Spitz était de 0.7 mm.
    Abstract: Resumen Se compararon las características clínicas e histológicas de 13 melanomas malignos en niños menores de 13 años en New South Wales, Australia, con un grupo control de 15 nevus de Spitz, 4 de los cuales fueron considerados atípicos, y 2 raros nevus compuestos novocelulares. Seis de los controles habían sido histológicamente diagnosticados previamente como melanoma maligno. Las observaciones objetivas realizadas por uno o mas histopatólogos expertos en reportar lesiones melanocíticas, junto con la información clínica, principalmente emanados de los archivos de la Unidad de Melanoma de Sydney, fueron ingresados a un minucioso protocolo, y la evolución fue analizada con ayuda de computación (SPSS-X Software y computador mainframe VAX). Seis de los 13 niños con melanoma maligno murieron por causa de la enfermedad. Los signos clínicos hallados con mayor frecuencia fueron el sangrado, la ulceración, el prurito y el color negro o jaspeado. Se observó aumento del tamaño y oscurecimiento reciente de la lesión en la mayoría de los melanomas malignos y de los nevus de Spitz. Las características histológicas que favorecieron el diagnóstico de melanoma en esta serie fueron las mitosis dentro de un margen de 0.25 mm del melanoma dérmico, una tasa de mitosis dérmica superior a 2/mm2, ulceración, exudado de superfice, gránulos pigmentados grandes y diferenciación de células claras. El espesor promedio de los melanomas malignos fue 1.3 mm, pero en los 4 niños que murieron por causa del melanoma el espesor promedio fue 2.9 mm. La ausencia de mitosis, el predominio de células fusiformes y la maduración difusa fueron hallazgos que favorecieron el diagnóstico de nevus de Spitz; el espesor promedio de los nevus de Spitz fue 0.7 mm.
    Notes: Abstract The clinical and histological features of 13 malignant melanomas in children 〈13 years of age in New South Wales, Australia, were compared with those in a control group of children with 15 Spitz nevi, 4 of which were considered atypical, and 2 unusual compound nevocellular nevi. Six of the controls had been previously diagnosed histologically as malignant melanoma. The objective observations made by one or more histopathologists experienced in reporting melanocytic lesions, and the clinical details, mainly from the Sydney Melanoma Unit files, were entered on a detailed protocol. Evaluation was assisted by the use of SPSS-X software on a mainframe VAX computer. Six of the 13 children with malignant melanoma died with their disease. The most frequent clinical features found in the malignant melanomas were bleeding, ulceration, itching, and black or variegated color. Recent enlargement and darkening were noted in the majority of both the malignant melanomas and the Spitz nevi. Histological features favoring malignancy in this series were mitoses within 0.25 mm of the dermal margin of the melanoma, a dermal mitotic rate exceeding 2/mm2, ulceration, surface exudate, large pigment granules, and clear-cell differentiation. The median thickness of the malignant melanomas was 1.3 mm but in the 4 children who died with melanoma the median thickness was 2.9 mm. Absence of mitoses, predominance of spindle cells, and diffuse maturation favored Spitz nevus. The median thickness of the Spitz nevi was 0.7 mm.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 378 (1995), S. 434-434 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — A recent news item in Nature1 reported that experts regard xenotrans-plantation as a new medical field with explosive growth potential. They foresee a future in which animals would routinely provide bone marrow, hearts, lungs and kidneys for humans, and estimate that 50,000 pig ...
    Type of Medium: Electronic Resource
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  • 18
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Genome-wide association (GWA) studies of large numbers of individuals genotyped for hundreds of thousands of common genetic variants have now convincingly been shown to be effective in identifying genes related to health and disease. The growing understanding of genome variation provided by the ...
    Type of Medium: Electronic Resource
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  • 19
    ISSN: 1545-9985
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Cholesteryl ester transfer protein (CETP) shuttles various lipids between lipoproteins, resulting in the net transfer of cholesteryl esters from atheroprotective, high-density lipoproteins (HDL) to atherogenic, lower-density species. Inhibition of CETP raises HDL cholesterol and may potentially be ...
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 341 (1989), S. 255-257 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two different methods were used to determine the phase of a pair of IHF-induced bends. One method depends upon alter-ations in electrophoretic mobility as a function of spacing between the IHF binding sites1'2; the other depends on alter- ations in the stability of IHF-DNA complexes as a function ...
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