Separate neural systems mediate the steroid-dependent and steroid-independent suppression of tonic luteinizing hormone secretion in the anestrous ewe

In the ewe, two types of seasonal fluctuations in secretion of tonic luteinizing hormone (LH) have been described: a steroid-dependent change whereby estradiol gains the capacity to suppress LH pulse frequency in anestrus, and a steroid-independent decrease in pulse frequency in ovariectomized anima...

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Veröffentlicht in:	Biology of reproduction 1986-10, Vol.35 (3), p.562-571
Hauptverfasser:	Meyer, S.L, Goodman, R.L
Format:	Artikel
Sprache:	eng
Schlagworte:	Anestrus Animals Apomorphine - pharmacology Biological and medical sciences BREBIS CATECHOLAMINE CATECHOLAMINES CATECOLAMINAS CICLO ESTRAL Clonidine - pharmacology CYCLE OESTRAL Cyproheptadine - pharmacology Dibenzylchlorethamine - pharmacology ESTACIONES DEL ANO ESTEROIDES Estradiol - pharmacology ESTROGENOS Estrus EWES Female FOTOPERIODISMO Fundamental and applied biological sciences. Psychology Gonadotropin-Releasing Hormone - antagonists & inhibitors HORMONAS HORMONE Hormone metabolism and regulation HORMONES Light Luteinizing Hormone - metabolism Mammalian female genital system NERF NERVES NERVIOS Neurotransmitter Agents - pharmacology OESTROGENE OESTROGENS OESTROUS CYCLE Ovariectomy OVEJA Phenoxybenzamine - pharmacology PHOTOPERIODICITE PHOTOPERIODICITY Pimozide - pharmacology Pituitary Gland - drug effects Receptors, Adrenergic, alpha - metabolism Receptors, Dopamine - metabolism Receptors, LH - drug effects SAISON SEASONS Serotonin - pharmacology Sheep STEROIDE STEROIDS Steroids - pharmacology Vertebrates: reproduction
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