Progesterone facilitation of sexual receptivity in rats with neural implantation of estrogen

Neuroendocrinology
R D Lisk, M A Barfield

Abstract

The neural substrate for estrogen (E) AND E plus progesterone (P)-induced sexual receptivity was examined in 3 classes of adult rats: (1) adult females ovariectomized for 11 days, and (2) females and (3) males gonadectomized on the day of birth. E responses were found only after implantation in the preoptic or medial hypothalamus; adult females had the largest fraction of responders. The addition of P significantly increased the fraction of adult and neonatally ovariectomized females responding when E implantation was made throughout the hypothalamus from preoptic to mammillary bodies. No E-P synergistic effects were seen in the day-1 gonadectomized males. E-P synergistic effects were found in the amygdala of the adult ovariectomized females. However, midbrain implants of E were ineffective for facilitating E-P-induced receptivity in the 3 classes of animals studied.

Citations

Sep 1, 1984·Hormones and Behavior·S B HowardR J Barfield
Dec 1, 1982·Physiology & Behavior·A J VomachkaR D Lisk
Apr 29, 2014·Neuroscience and Biobehavioral Reviews·Genaro A Coria-AvilaJames G Pfaus
Jan 22, 1990·The Journal of Comparative Neurology·K P Corodimas, J I Morrell
Nov 1, 1992·Journal of Neuroscience Research·A LorenzoA Cáceres
Jun 13, 2009·Hormones and Behavior·Mayte ParadaJames G Pfaus
Jun 1, 1979·Hormones and Behavior·S W LeehanJ D Bast

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