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A possible physiological basis for the dud-stud phenomenon.

Clark, A S; Davis, L A; Roy, E J.

Horm Behav ; 19(2): 227-30, 1985 Jun.

Article in English | MEDLINE | ID: mdl-4007800

ABSTRACT

Intact male rats were tested on two successive weekly tests with females to determine their level of sexual activity. Nuclear estrogen receptor content was measured in specific brain regions of individual sexually responsive and sexually nonresponsive males. Sexually nonresponsive male rats had significantly reduced nuclear estrogen receptor levels in the preoptic area compared to sexually responsive males. Sexually active males did not differ from inactive males in nuclear estrogen receptors in the medialbasal hypothalamus.

Subject(s)

Hypothalamus, Middle/analysis , Preoptic Area/analysis , Receptors, Estradiol/pharmacology , Receptors, Estrogen/pharmacology , Sexual Behavior, Animal/physiology , Animals , Cell Nucleus/analysis , Male , Rats

Cellular mechanisms of acute estrogen negative feedback on LH secretion: pituitary responsiveness to LHRH and estradiol receptor kinetics in the pituitary, preoptic hypothalamic area, and the caudal hypothalamic area of the rat brain

Johnston, C. A; Tesone, M; Negro Vilar, A.

Braz. j. med. biol. res ; 18(1): 125-30, 1985. ilus

Article in English | LILACS | ID: lil-1169

Subject(s)

Rats , Animals , Female , Pituitary Gland/physiology , Luteinizing Hormone/blood , Luteinizing Hormone/pharmacology , Receptors, Estradiol/pharmacology

ABSTRACT

Subject(s)

Subject(s)

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