Ovarian Physiology
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Ultrasound monitoring of the uterus and ovaries of dominant and subordinate females of yellow-breasted capuchin (Sapajus xanthosternos) and robust tufted capuchin (Sapajus robustus) in captive colonies during the ovarian cycle and anestrus periods
RESUMO: O macaco-prego-do-peito-amarelo (Sapajus xanthosternos) e o macaco-prego-de-crista (Sapajus robustus) encontram-se em risco de extinção devido a destruição do seu habitat e a caça predatória. Porém, ainda necessita-se elucidar alguns detalhes de sua fisiologia reprodutiva, para obterem-se melhores índices por meio de reprodução assistida. S
Pesq. Vet. Bras.. Publicado em: 10/01/2020
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2. In vitro embryo production in buffaloes: from the laboratory to the farm
Abstract Transvaginal follicular aspiration technique together with in vitro embryo production are the biotechnological alternatives currently available to support genetic improvement breeding programs in buffalo species. However, aspects related to animal management, lack of knowledge of the metabolic needs and biochemical peculiarities of gametes and embry
Anim. Reprod.. Publicado em: 25/11/2019
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3. Melatonin effects on ovarian follicular cells: a systematic review
RESUMO A melatonina é conhecida por seus efeitos no sono e no sistema reprodutivo dos mamíferos. Este último tem receptores de melatonina tipos 1 e 2, que atuam para regular, entre outras coisas, o AMP cíclico. Apesar de todos os dados da literatura, ainda não há um conhecimento sólido ou uma compreensão clara da ação do hormônio na fisiologia das
Rev. Assoc. Med. Bras.. Publicado em: 12/09/2019
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4. Análise do mRNA da proteína BMP-15 e IGF-2 em oócitos e células do cumulus de ovelhas do semiárido pernambucano. / Analysis of mRNA expression of BMP-15 and IGF-2 proteins in oocytes and cumulus cells of sheep in semi-arid state of Pernambuco.
Two experiments were conducted to analyze the expression of genes related to follicular development and subsequent reproductive efficiency in oocytes and cumulus cells in two distinct phases of folliculogenesis. Ovaries of native breeds of sheep slaughtered in the abattoir in Caruaru/PE were collected and transported to the Laboratory of Applied Molecular An
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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5. Efeito da tiroxina e do hormônio folículo estimulante no desenvolvimento in vitro de folículos pré-antrais ovinos / Effects of thyroxin and follicle stimulating hormone on the in vitro development of ovine preantral follicles
This experiment has been developed in order to verify the thyroxine effect in the presence or absence of follicle stimulating hormone (FSH) on survival and growth of sheep preantral follicles. Fragments of ovarian tissue were grown for 1 or 7 days in a situation with a minimum essential (α-MEM +) alone or containing thyroxine (10, 20, 50 g/mL) in the pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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6. Função ovariana e produção de embriões em novilhas da raça Nelore submetidas a baixa ou alta ingestão alimentar. / Ovarian function and embryo production in Nelore heifers with low or high feed intake
Este trabalho avaliou o efeito da nutrição na função ovariana e produção de embriões em novilhas da raça Nelore. Novilhas púberes foram submetidas a alta (A, n=20) ou baixa (B, n=19) ingestão, recebendo alimentação à vontade (170%) ou 70% da dieta de manutenção, respectivamente. Foram realizados acompanhamento através de ultra-sonografia tran
Publicado em: 2008
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7. Ação do estrógeno e progesterona na mucosa nasal humana: avaliação do transporte mucociliar nasal de sacarina e pesquisa de receptores hormonais através de método imuno-histoquímico / Estrogen and progesterone influence in human nasal mucosa: evaluation of nasal saccharin mucociliary transport and test for hormone receptors with immunohistochemical staining
Although nasal mucociliary clearance has been thoroughly studied, there is controversial evidence that it is directly influenced by female sex hormones. This study focused on: 1. evaluating saccharin nasal mucociliary transport in both sexes and during the follicular, periovulatory and luteal phases of consecutive ovarian cycles, and 2. identifying the expre
Publicado em: 2002
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8. Impact of isotype-selective estrogen receptor agonists on ovarian function
Other isotype-selective estrogen receptor (ER) agonists, the selective ERα agonist 3,17-dihydroxy-19-nor-17α-pregna-1,3,5 (10)triene-21,16α-lactone and the selective ERβ agonist 8-vinylestra-1,3,5 (10)-triene-3,17β-diol, were used in hypophysectomized rats, gonadotropin-releasing hormone antagonist-treated mice, as well as intact rats to elucidate the e
National Academy of Sciences.
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9. The morphogenic/cytotoxic and prostaglandin-stimulating activities of interleukin-1 beta in the rat ovary are nitric oxide independent.
Nitric oxide (NO) has been implicated as a mediator of physiologic and pathologic cellular injury. Since the cytokine interleukin-1 beta (IL-1 beta) induces nitric oxide synthase (NOS) activity as well as effects morphogenic/cytotoxic changes and increased prostaglandin (PGE2) levels in cultured whole ovarian dispersates, we set out to determine whether thes
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10. Hormone-regulated K+ channels in follicle-enclosed oocytes are activated by vasorelaxing K+ channel openers and blocked by antidiabetic sulfonylureas.
Follicular oocytes from Xenopus laevis contain K+ channels activated by members of the recently recognized class of vasorelaxants that include cromakalim and pinacidil and blocked by antidiabetic sulfonylureas, such as glibenclamide. These channels are situated on the adherent follicular cells and are not present in denuded oocytes. Cromakalim-activated K+ c
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11. Neonatal Bisphenol-A Exposure Alters Rat Reproductive Development and Ovarian Morphology Without Impairing Activation of Gonadotropin-Releasing Hormone Neurons1
Developmental exposure to endocrine-disrupting compounds is hypothesized to adversely affect female reproductive physiology by interfering with the organization of the hypothalamic-pituitary-gonadal axis. Here, we compared the effects of neonatal exposure to two environmentally relevant doses of the plastics component bisphenol-A (BPA; 50 μg/kg and 50 mg/kg
Society for the Study of Reproduction.
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12. MRP3, an organic anion transporter able to transport anti-cancer drugs
The human multidrug-resistance protein (MRP) gene family contains at least six members: MRP1, encoding the multidrug-resistance protein; MRP2 or cMOAT, encoding the canalicular multispecific organic anion transporter; and four homologs, called MRP3, MRP4, MRP5, and MRP6. In this report, we characterize MRP3, the closest homolog of MRP1. Cell lines were retro
The National Academy of Sciences.