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Registros recuperados: 6
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Teneurs plasmatiques en FSH et LH des agneaux males et femelles issus de beliers Lacaune prolifiques et non prolifiques Inra
Ricordeau, G.; Blanc, M.R.; Bodin, L..
Cette étude a pour but de mesurer les teneurs en FSH et LH plasmatique des produits mâles et femelles et la croissance testiculaire des mâles issus de 16 pères Lacaune sélectionnés d’après leur index de prolificité en fermes (8 prolifiques H et 8 non prolifiques B) et de mères Romanov et F1 Lacaune X Romanov. Elle porte sur 161 agneaux dont 100 mâles et 61 femelles. Les taux de FSH et de LH sont mesurés sur un seul prélèvement de sang à 3, 5, 7, 9 et 11 semaines ; le diamètre testiculaire est mesuré à 7, 10 et 14 semaines. Chez les mâles, le taux de FSH est maximum à 5 semaines (3,6 ng/ml) ; il est indépendant du type de naissance, du type génétique des agneaux et de l’index de prolificité de leur père. Intra-type génétique, le diamètre...
Tipo: Journal Article Palavras-chave: TAUX D'OVULATION; TAILLE TESTICULAIRE; GONADOTROPINE; RACE OVINE ROMANOV; RACE OVINE LACAUNE.
Ano: 1984 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9100007232017590&uri=/notices/prodinra1/2008/02/
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Effects of GnRHa and pimozide treatments on the timing of ovulation and on egg quality in arctic charr (Salvelinus alpinus) at 5 and 10øC. Inra
Gillet, C.; Breton, B.; Mikolajczyk, T..
Tipo: Journal Article Palavras-chave: OEUF DE POISSON; GONADOTROPINE; OVULATION.
Ano: 1996 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9700002038061659&uri=/notices/prodinra1/2009/12/
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Nicotine stimulated GtH2 secretion in vivo in male common carp (Cyprinus carpio). Potentiation of GnRH action and possible interaction with dopaminergic system Inra
Mikolajczyk, T.; Chyb, J.; Sokolowska-Mikolajczyk, M.; Breton, B.; Monden, K.; Epler, P..
Tipo: Journal Article Palavras-chave: SYSTEME DOPAMINERGIQUE; ANTAGONISTE DES RECEPTEURS; DOMPERIDONE; GONADOTROPINE; NICOTINE; SYNERGISME; DOPAMINE; HORMONE SEXUELLE; MATURITE SEXUELLE; GONADOLIBERINE.
Ano: 1998 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9900008661078589&uri=/notices/prodinra1/2009/12/
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Purification and structural analysis of a soluble human chorionogonadotropin hormone-receptor complex Inra
Rémy, J.J.; Nespoulous, C.; Grosclaude, J.; Grébert, D.; Couture, L.; Pajot, E.; Salesse, R..
Receptors for the luteotropin/human chorionogonadotropin hormone belong to the G-protein-coupled receptor family by their membrane-anchoring domains. They also possess a large extracellular domain (ECD) responsible for most of the hormone-receptor interactions. Structure-function studies identified several contacts between hormone and receptor ECD, but the precise topology of the complex is still unknown because of the lack of suitable heterologous expression means. Receptor ECDs exhibit leucine repeats and have been modelized on the basis of the three-dimensional structure of the porcine ribonuclease inhibitor, the first structurally known leucine-rich repeats protein. Here we report overexpression (up to 20 mg per liter) and purification to homogeneity...
Tipo: Journal Article Palavras-chave: TECHNIQUE ANALYTIQUE; STRUCTURE; SPECTROSCOPIE; HORMONE; COMPLEXE HORMONE RECEPTEUR; LH; GONADOTROPINE; IMMUNOPURIFICATION; STRUCTURE TRIDIMENSIONNELLE; PURIFICATION.
Ano: 2001 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300012808095525&uri=/notices/prodinra1/2010/10/
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Endotoxin inhibits the surge secretion of gonadotropin-releasing hormone via a prostaglandin-independent pathway Inra
Breen, K.M.; Billings, H. J.; Debus, N.; Karsch, F. J..
Immune/inflammatory challenges, such as bacterial endotoxin, disrupt gonadotropin secretion and ovarian cyclicity. We previously determined that endotoxin can block the estradiol-induced LH surge in the ewe. Here, we investigated mechanisms underlying this suppression. First, we tested the hypothesis that endotoxin blocks the estradiol-induced LH surge centrally, by preventing the GnRH surge. Artificial follicular phases were created in ovariectomized ewes, and either endotoxin or vehicle was administered together with a surge-inducing estradiol stimulus. In each ewe in which endotoxin blocked the LH surge, the GnRH surge was also blocked. Given this evidence that endotoxin blocks the estradiol-induced LH surge at the hypothalamic level, we began to assess...
Tipo: Journal Article Palavras-chave: ENDOTOXINE; HORMONE GONADOTROPE; GONADOTROPINE; PROSTAGLANDINE; SECRETION DE LH; PULSE DE GNRH; CYCLE OVARIEN; HYPOTHALAMUS ENDOTOXIN; HORMONE; GONADOTROPIN; GNRH; LH.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007a6a7a3a2&uri=/notices/prodinra1/2008/09/
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Functional specificity of the rainbow trout (Oncorhynchus mykiss) gonadotropin receptors as assayed in a mammalian cell line Inra
Sambroni, E.; Le Gac, F.; Breton, B.; Lareyre, J.J..
Tipo: Journal Article Palavras-chave: RECEPTEUR D'HORMONE; GONADOTROPINE; EXPRESSION DES GENES.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20071c6b6ba5&uri=/notices/prodinra1/2008/01/
Registros recuperados: 6
Primeira ... 1 ... Última
 

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