Androgens
Mostrando 25-36 de 229 artigos, teses e dissertações.
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25. Influência de fatores individuais e sociais sobre as respostas endócrina e comportamental de callithrix jacchus a desafios ambientais físicos e sociais
Regarding the growing number of human beings with physical and mental pathologies associated to different stressor agents, attempts are being made to validate animal models with a close phylogenetic resemblance to man, to study stress response. Callithrix jacchus has been widely used in biomedical research, including on stress, but there is scarce informatio
Publicado em: 2009
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26. Esteróides gonadais e metabolismo lipídico ao longo do ciclo reprodutivo de Arapaima gigas (SCHINZ, 1822) em ambiente natural / Gonad steroids and lipid metabolism along the reproductive cycle of Arapaima gigas (SCHINZ, 1822) in natural environmet
The aim of the present study was to investigate the possible physiological alterations related with reproduction in males and females of Arapaima gigas (pirarucu) in their natural environment. Pirarucu is an obligatory aerial respiration species belonging to a very ancient group of teleosts and inhabits Amazonian river. The main goals of this study were to d
Publicado em: 2009
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27. Use of different biological matrices on androgens measurement in captive male Amazonian manatees (Trichechus inunguis) / Uso de diferentes matrizes biológicas na dosagem de andrógenos em peixes-bois da Amazônia machos (Trichechus inunguis) mantidos em cativeiro
O objetivo deste estudo foi verificar a viabilidade da dosagem de andrógenos em amostras de saliva, secreção lacrimal, urina e fezes de peixe-boi da Amazônia realizando um desafio hormonal. Dois peixes-bois amazônicos adultos machos (A-1 e A-2) foram submetidos a um protocolo de experimentação de doze dias (D-1 a D10). No D0 os animais receberam uma i
Publicado em: 2008
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28. Morfometria testicular em ratos wistar adultos tratados com paracetamol (acetaminofeno) / Testis morphometry in adult Wistar rats treated with acetaminophen
Acetaminophen is non-prescrition analgesic and antipyretic considered safe and well tolerated in therapeutics doses, but it might cause hepatic and extrahepatic damage in animal and human models exposed to high doses. The chronic use of paracetamol in supratherapeutics doses has been implied in testicular lesions and sexual behavior alterations in animal mod
Publicado em: 2008
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29. Caracterização do ritmo de atividade motora durante a puberdade em sagüis (Callithrix jacchus) sob condições semi-naturais
Most of ontogenetic studies on circadian timing system have been developed on infants, adults and elderly. The puberty has not been a stage of life few studied, except for researches in human adolescents, that presents phase delay in sleep-wake cycle. However, few studies have focused on the basis of this circadian change due to methodological diffic
Publicado em: 2008
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30. Estrogens and male reproduction: a new concept
The mammalian testis serves two main functions: production of spermatozoa and synthesis of steroids; among them estrogens are the end products obtained from the irreversible transformation of androgens by a microsomal enzymatic complex named aromatase. The aromatase is encoded by a single gene (cyp19) in humans which contains 18 exons, 9 of them being transl
Brazilian Journal of Medical and Biological Research. Publicado em: 2007-06
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31. Polimorfismos do gene da calpaína 10 (CAPN10) e associação com síndrome metabólica em pacientes com síndrome de ovários policísticos (PCOS) / Association between CAPN10 UCSNP-43 and UCSNP-19 polymorphisms and metabolic syndrome in polycystic ovary syndrome (PCOS)
Resumo não disponível.
Publicado em: 2007
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32. Androgen receptors expression in the Mongolian gerbil ventral prostate / Expressão de receptores androgenicos no lobulo ventral da prostata do gerbilo da Mongolia
The normal growth, differentiation and maintenance of the morphofunctional integrity of the prostate gland are dependent on the interaction of constant levels of androgens with their receptors. The need to study the responses to hormones under several conditions and the effect of their blockage is due to the fact that the human prostate is the site of a grea
Publicado em: 2007
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33. Acidos graxos com diferentes caracteristicas afetam o crescimento prostatico e a expressão dos receptores de androgeno (AR) e dos ativadores da proliferação dos peroxissomos y (PPARy) / Dietary fatty acids regulate AR and PPARy levels and prostate growth
A próstata é uma glândula acessória do trato reprodutor masculino. Muitos são os fatores envolvidos no carcinogênese prostática. Os nutricionais são usualmente associados com a etiopatogenia do câncer de próstata, sendo que os ácidos graxos estão entre os mais importantes. O objetivo deste trabalho foi avaliar o efeito dos ácidos graxos presente
Publicado em: 2007
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34. Expression of USP2a and study of its interaction with clathrin in human oral squamous carcinoma and prostate cancer cells / Estudo da expressão da enzima desubiquitinante USP2a e de sua interação com a proteina clatrina em celulas derivadas de carcinomas espinocelulares bucais e de prostata humanos
The ubiquitin (Ub)-proteasome pathway controls cellular protein turnover by degrading targeted intracellular proteins tagged with poly-Ub chains. Ubiquitination is a reversible process and the deubiquitinating enzymes (DUBs) are proteases that specifically cleave off Ub from Ub-protein conjugates. They can act in a preproteasomal level removing the poly-Ub t
Publicado em: 2007
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35. Estudo da expressão dos receptores do peptídeo insulinotrópico dependente de glicose (GIPR) e do hormônio luteinizante (LHCGR) em tumores e hiperplasias do córtex adrenal / Expression Study of Glucose-dependent insulinotropic peptide receptor (GIPR) and luteinizing hormone receptor (LHCGR) in adrenocortical tumors and hyperplasia
Introduction: The glucose- dependent insulinotropic peptide receptor (GIPR) and luteinizing hormone receptor (LHCGR) are G-protein coupled receptors with a wide tissue expression pattern. The aberrant expression of these receptors has been described in cases of ACTH-independent macronodular adrenal hyperplasia (AIMAH) and in some adenomas, resulting in the i
Publicado em: 2007
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36. Regulação hormonal da prostata de femeas do gerbilo : avaliação estrutural, citoquimica e imunocitoquimica / Hormonal regulation of the gerbil female propstate: morphology, cytochemistry and immunocytochemistry
The female prostate is a functionally active gland found in several species of mammals, including humans and rodents. In adult female gerbils, the prostate presents a paraurethral location, showing close contact with the wall of urethra in its median and distal portions. This gland is homologue to the ventral prostate of male rodents and it is formed by a cl
Publicado em: 2006