Estrous Cycle
Mostrando 25-36 de 139 artigos, teses e dissertações.
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25. A influência do fumo sobre a morfologia ovariana de camundongos Swiss / Effects of cigarette smoke on ovarian morphology of swiss mice
Considerando que nos tempos atuais o hábito de fumar atingiu uma parcela significativa das adolescentes brasileiras e apesar de seus conhecidos efeitos deletérios sobre diversos órgãos, pouco se sabe da sua ação sobre os ovários. Este estudo teve como objetivo avaliar os efeitos da exposição à fumaça de cigarro sobre o ciclo estral e a morfologia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/07/2011
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26. Influência do ciclo estral no efeito do diazepam na ansiedade e memória de ratas
Memory and anxiety are related phenomena. Several evidences suggest that anxiety is fundamental for learnining and may facilitate or impair the memory formation process depending of the context. The majority of animal studies of anxiety and fear use only males as experimental subjects, while studies with females are rare in the literature. However, the preva
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/05/2011
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27. Expressão gênica da prolactina, do receptor de prolactina e das hialuronam sintases e a imunoistoquímica do ácido hialurônico e do receptor CD44 em úteros de camundongos fêmeas com hiperprolactinemia induzida pela metoclopramida, durante as fases do ciclo estral / Gene expression of the prolactin, of the prolactin receptor and of the hyaluronan synthases and immunohistochemistry of the hyaluronic acid and of the CD44 receptor in uterus of female mice with metoclopramide-induced hyperprolactinemia throughout the estrous cycle
OBJECTIVE: To evaluate the gene expression of prolactin, prolactin receptor and hialuronan sintase and immunohistochemistry of hyaluronic acid and CD44 in the uterus of female mice with metoclopramide-induced hyperprolactinemia throughout the estrous cycle. METHODS: 80 adult (100 days old) female virgin mice were randomly divided into two groups of 40 animal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2011
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28. EFEITO DA GENISTEÍNA NA FUNCIONALIDADE DE MACRÓFAGOS: UM ESTUDO COMPARATIVO ENTRE RATOS MACHOS E FÊMEAS
Genistein has estrogenic activity and can bind to estrogen receptors (ER), so it is considered a phytoestrogen. ER have been reported in macrophages and in that sense, the estrogens modulate immune responses. Despite the sexual dimorphism of the immune responses in females and males is well established, there are few studies that elucidate the role of bioact
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2011
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29. Protocolos hormonais de preparação de doadoras bovinas para produção de embriões in vitro / Different protocols to bovine donor preparation for in vitro embryo production
Efficiency of in vitro bovine embryo production has been affected by low quantity and quality of recovered oocytes from ultrasound-guided follicular aspiration (OPU). The objective of this study was to evaluate the effect of different synchronization of follicular wave protocols in the production of oocytes and embryos in vitro, of Bos taurus taurus and Bos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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30. Different protocols to bovine donor preparation for in vitro embryo production / Protocolos hormonais de preparação de doadoras bovinas para produção de embriões in vitro
Efficiency of in vitro bovine embryo production has been affected by low quantity and quality of recovered oocytes from ultrasound-guided follicular aspiration (OPU). The objective of this study was to evaluate the effect of different synchronization of follicular wave protocols in the production of oocytes and embryos in vitro, of Bos taurus taurus and Bos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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31. Long-term melatonin treatment reduces ovarian mass and enhances tissue antioxidant defenses during ovulation in the rat
Melatonin regulates the reproductive cycle, energy metabolism and may also act as a potential antioxidant indoleamine. The present study was undertaken to investigate whether long-term melatonin treatment can induce reproductive alterations and if it can protect ovarian tissue against lipid peroxidation during ovulation. Twenty-four adult female Wistar rats,
Braz J Med Biol Res. Publicado em: 2011-03
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32. Effects of metoclopramide on the mouse anterior pituitary during the estrous cycle
Clinics. Publicado em: 2011
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33. Assessment of luteal function in goats by ultrasonographic image attribute analysis.
The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at est
Small Ruminant Research. Publicado em: 2011
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34. Assessment of luteal function in goats by ultrasonographic image attribute analysis.
The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at est
Small Ruminant Research. Publicado em: 2011
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35. Efeitos da modificação alimentar e exercício físico sobre alterações produzidas pela dieta de cafeteria em ratas
Obesity affects a large number of people around the world and is characterized by excessive accumulation of adipose tissue. The obesity epidemic appears to be the result of changes in food, eating habits and levels of physical activity. The obesity is considered an important risk factor for the development of diseases such as type 2 diabetes mellitus. Recent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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36. Controle do ciclo estral e taxa de prenhez em matrizes de corte bovinas: efeitos hormonais, genéticos e ambientais / Control of the estrous cycle and pregnancy rate in beef cattle cows and heifers: effects hormonal, genetic and environmental
Investigou-se o desempenho reprodutivo de novilhas e vacas de corte submetidas a protocolos de sincronização de estros para a inseminação artificial e a associação entre marcadores moleculares e desempenho reprodutivo. Exp.1 avaliou-se a antecipação da aplicação da PGF2a em programa de IATF com implante de progesterona em 306 vacas Angus, com cria
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011