Receptors Fsh
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Phytohemagglutinin improves the development and ultrastructure of in vitro-cultured goat (Capra hircus) preantral follicles
The objective this study was to determine the effect of phytohemagglutinin (PHA) on survival, growth and gene expression in caprine secondary follicles culturedin vitro. Secondary follicles (∼0.2 mm) were isolated from the cortex of caprine ovaries and cultured individually for 6 days in α-MEM+ supplemented with PHA (0, 1, 10, 50, 100, or 200 µg/mL). Aft
Braz J Med Biol Res. Publicado em: 19/03/2013
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2. Densidade mamária e polimorfismo do gene do receptor estrogênico em mulheres com mamas densas após a menopausa / Breast density and polymorphism of the estrogen receptor gene in women with hight breast density after menopause
Introdução: Polimorfismo é variação genética de ocorrência habitual na população em geral, encontrado em frequência superior a 1%. Há vários polimorfismos conhecidos no gene do receptor estrogênico alfa, alguns dos quais podem modificar a função do receptor e a ação dos estrogênios. Associação de polimorfismos no gene do receptor estrogê
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/10/2012
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3. Papel dos canais K+ATP na resposta eletrofisiológica ao FSH e ao isoproterenol em células de Sertoli
Follicle-stimulating hormone (FSH) produces a dual effect on the membrane potential of Sertoli cells, with an initial rapid phase, which comprises a hyperpolarization for a period of seconds and a depolarization phase, wich occurs more slowly, within minutes. The depolarization phase involves calcium entry stimulated by FSH. Isoproterenol, an agonist of ¿-a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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4. Estabilidade de genes de referÃncia e influÃncia das BMPs-6 e 7 sobre o desenvolvimento in vitro de folÃculos prÃ-antrais caprinos / Stability of reference genes and influence of BMP-6 and 7 on the in vitro development of caprine preantral follicles
Este trabalho tem como objetivo avaliar a estabilidade de genes de referÃncia e a expressÃo de fatores de crescimento e de receptores de hormÃnios em folÃculos secundÃrios de caprinos. AlÃm disso, visa quantificar a expressÃo dos RNA mensageiros para BMP-6 e BMP-7 em folÃculos prÃ-antrais e antrais caprinos e avaliar os efeitos de FSH, BMP-6 e BMP-7
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2010
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5. Efeitos da utilizaÃÃo das diferentes doses de olanzapina sobre a espermatogÃnese em ratos wistar
The Olanzapina is used by acute treatment and maintenance in schizophrenia trail, as well as another psychoses. Despite atypical antipsychotics being more utilized nowadays, however there are few knowledge about its influence under spermatogenesis. Based on dopamine receptors presence in germ cell, the present work had objective to investigate the effects of
Publicado em: 2009
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6. Oxidative stress and reproductive disorders in hyperglycemic male rats : antioxidant potencial of vitamins C and E / Relação entre estresse oxidativo e desordens reprodutivas em ratos machos hiperglicemicos : potencial antioxidante das vitaminas C e E
The hyperglycemia is related to disorders in the male reproductive system. When induced chemically, it can reduce the sexual hormones level, reproductive organs weight, sperm concentration, and fertility as well as the male rat sexual behavior. In men, the hyperglycemia can lead to sexual impotence, libido and spermatogenesis reduction. However, the main
Publicado em: 2009
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7. REGULAÇÃO DA EXPRESSÃO DO RECEPTOR AT2 E EFEITO DA ANGIOTENSINA II SOBRE A EXPRESSÃO DE GENES ENVOLVIDOS NO DESENVOLVIMENTO FOLICULAR E OVULAÇÃO EM CÉLULAS DA GRANULOSA DE BOVINOS / REGULATION OF AT2 RECEPTORS IN BOVINE GRANULOSA CELLS, AND EFFECTS OF ANGIOTENSIN II ON GENES INVOLVED IN FOLLICLE DEVELOPMENT AND OVULATION
The objective of this study was to investigate the factors controling the expression of angiotensin II (AngII) receptors and to determine the physiological role of AngII in granulosa cells. The AGTR2 receptor was localized in granulosa (and theca) cells from follicles of different sizes. Bovine ovaries were collected at a local abattoir and small follicles (
Publicado em: 2007
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8. Análise molecular do gene FOXL2 em mulher com síndrome blefarofimose ptose epicanto inverso com falência ovariana prematura
Premature ovarian failure (POF) is a disorder with very important repercussions for woman life, either regarding the end of reproductive lifespan or the consequent estrogenic hormonal deficiency. The number of POF causes is quite a lot, including infectious diseases as well as immunologyc, iatrogenic and genetic disorders. Since the advances in past decades
Publicado em: 2007
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9. Caracterização da expressão e função de receptores recombinantes do hormônio folículo-estimulante. / Characterization of expression and function of recombinant follicle-stimulating receptors.
The follicle stimulating hormone receptor (FSHR) is a member of a family of Gprotein-coupled receptors that has a large aminoterminal domain, rich in leucine repeats. The FSHR, together with the luteinizing hormone receptor, controls gonadal function in vertebrates. Mutations in the FSHR can alter its binding and signaling properties, and drastically affect
Publicado em: 2006
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10. "Aspectos clínicos e genótipo do receptor do FSH na síndrome de hiperestímulo ovariano induzida por hCG" / Clinical aspects and genotype of the FSH receptor in hCG-induced ovarian hyperstimulation syndrome
Ovarian hyperstimulation syndrome (OHSS) can occur spontaneously during early pregnancy or as an iatrogenic complication in assisted reproductive medicine. The aim of this study was to identify clinical and hormonal risk factors for iatrogenic OHHS and to evaluate the role of allelic variants of the FSHR in the etiology of this syndrome. We studied 29 patien
Publicado em: 2006
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11. Semiquantification of mRNA for gonadotropins receptors in follicles of Nelore heifers (Bos taurus indicus) / Semiquantificação de RNAm para receptores de gonadotrofinas em folículos de novilhas Nelore (Bos taurus indicus)
A identificação de mecanismos moleculares é importante para entender os eventos fisiológicos que ocorrem durante o processo de maturação sexual. O objetivo deste trabalho foi semiquantificar o RNAm para os receptores de gonadotrofinas em células da granulosa de folículos dominantes em crescimento de novilhas Nelore pré-púberes, buscando associaçã
Publicado em: 2004
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12. Luteinizing hormone receptor appearance in cultured porcine granulosa cells requires continual presence of follicle-stimulating hormone.
During the differentiation of ovarian granulosa cells, follicle-stimulating hormone (follitropin; FSH) mediates the induction of cell surface receptors for luteinizing hormone (lutropin; LH). Using primary cultures of porcine granulosa cells, we demonstrate that both the induction and maintenance of LH receptors are critically dependent upon the continual pr