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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
21/06/2023 |
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Autoria: |
WEISS, T. J.; JANSON, P. O.; PORTER, K. J.; SEAMARK, R. F. |
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Título: |
Effects of human chorionic gonadotrophin on the release of cyclic AMP and progesterone from the sheep ovary at different stages of the oestrous cycle. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Acta Endocrinology, v. 89, n. 1, p. 158-165, Sep. 1978. |
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DOI: |
10.1530/acta.0.0890158. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The rate of release of cyclic AMP by sheep ovaries containing a corpus luteum was determined at different stages of the cycle before and up to 60 min after an intra-arterial (ia) injection of 500 IU human chorionic gonadotrophin (hCG). The median cyclic AMP concentration in arterial plasma and of ovarian venous plasma following hCG stimulation was 93.2 and 98.0 pmol/ml, respectively. The ovaries of ewes examined at Days 1 and 2 of the cycle showed no response to hCG, whereas in 2 sheep at Day 3, hCG caused a slight response, and in 13 sheep examined between Days 5-18, hCG caused a marked increase in cAMP release. In 5 of the sheep in which both ovarian veins were cannulated, only the ovary with a corpus luteum responded to hCG with an increased secretion rate of cyclic AMP and progesterone. The results indicate a lack of responsiveness in the newly formed corpus luteum to hCG. |
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Palavras-Chave: |
Drug effects; Ovary; Secretory Rate. |
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Thesagro: |
Endocrinologia; Fisiologia; Ovino; Reprodução. |
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Thesaurus Nal: |
Endocrinology; Estrus; Females; Humans; Metabolism; Physiology; Pregnancy; Progesterone; Reproduction; Sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01937naa a2200373 a 4500
001 1521353
005 2023-06-21
008 1978 bl uuuu u00u1 u #d
024 7 $a10.1530/acta.0.0890158.$2DOI
100 1 $aWEISS, T. J.
245 $aEffects of human chorionic gonadotrophin on the release of cyclic AMP and progesterone from the sheep ovary at different stages of the oestrous cycle.$h[electronic resource]
260 $c1978
520 $aAbstract: The rate of release of cyclic AMP by sheep ovaries containing a corpus luteum was determined at different stages of the cycle before and up to 60 min after an intra-arterial (ia) injection of 500 IU human chorionic gonadotrophin (hCG). The median cyclic AMP concentration in arterial plasma and of ovarian venous plasma following hCG stimulation was 93.2 and 98.0 pmol/ml, respectively. The ovaries of ewes examined at Days 1 and 2 of the cycle showed no response to hCG, whereas in 2 sheep at Day 3, hCG caused a slight response, and in 13 sheep examined between Days 5-18, hCG caused a marked increase in cAMP release. In 5 of the sheep in which both ovarian veins were cannulated, only the ovary with a corpus luteum responded to hCG with an increased secretion rate of cyclic AMP and progesterone. The results indicate a lack of responsiveness in the newly formed corpus luteum to hCG.
650 $aEndocrinology
650 $aEstrus
650 $aFemales
650 $aHumans
650 $aMetabolism
650 $aPhysiology
650 $aPregnancy
650 $aProgesterone
650 $aReproduction
650 $aSheep
650 $aEndocrinologia
650 $aFisiologia
650 $aOvino
650 $aReprodução
653 $aDrug effects
653 $aOvary
653 $aSecretory Rate
700 1 $aJANSON, P. O.
700 1 $aPORTER, K. J.
700 1 $aSEAMARK, R. F.
773 $tActa Endocrinology$gv. 89, n. 1, p. 158-165, Sep. 1978.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | BENCHIMOL, R. L.; CARDOSO, R. S.; FREIRE FILHO, F. R.; RODRIGUES, J. E. L. F.; SILVA, C. M. da. Comportamento de genótipos de feijão-caupi tipo manteiguinha quanto à incidência de doenças em Tracuateua, PA. In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 5., 2019, Fortaleza. Sustentabilidade e inovações tecnológicas para o feijão-caupi: desafios e perspectivas: anais. Fortaleza: Universidade Federal do Ceará: Embrapa Meio-Norte, 2019. Conac.| Biblioteca(s): Embrapa Amazônia Oriental. |
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