GENOMIC AND NON-GENOMIC ACTIONS OF PROGESTERONE IN THE CONTROL OF FEMALE HAMSTER SEXUAL-BEHAVIOR

被引:58
作者
DEBOLD, JF [1 ]
FRYE, CA [1 ]
机构
[1] BOSTON UNIV,DEPT BIOL,BOSTON,MA 02215
关键词
D O I
10.1006/hbeh.1994.1042
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Genomic Progesterone (P) in both the ventromedial hypothalamus (VMH) and the ventral tegmental area (VTA) is necessary to facilitate sexual receptivity in estrogen-primed hamsters. The mechanism of P may be different in the VMH and VTA, as there are many intracellular progestin receptors (PR) in the VMH but few in the VTA. Progesterone conjugated to bovine serum albumin (P-3-BSA) does not bind well to intracellular PR or permeate the surface of neuronal membranes. However, VTA application of P-3-BSA rapidly increases sexual receptivity if P has been applied earlier to the VMH. P-S-BSA is ineffective when applied to the VMH. The membrane-limited effect of P may be related to the ability of some progestins to modulate the GABA(A)-benzodiazepine receptor complex (GBRC). We have found that infusions of a GABA(A) agonist, muscimol, into the VTA enhance and a GABA(A) antagonist, bicuculline, inhibit receptivity. Because P itself is not highly effective at the GBRC, and since the most potent modulators of the GBRC, the 5 alpha-reduced progestins, do not bind well to PRs, progestin metabolites were applied to the VTA. Only the potent GBRC modulators facilitated sexual receptivity when applied to the VTA concurrent with P to the VMH. The reverse treatment, with a progestin metabolite implanted into the VMH, was ineffective. VTA infusions of an inhibitor of 5 alpha-reductase also attenuated behavioral estrus in hamsters. These data are consistent with P facilitation of sexual receptivity being genomically mediated in the VMH, while the non-genomic actions of P in the VTA may be a result of metabolism and subsequent interaction with the GBRC. (C) 1994 Academic Press, Inc.
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页码:445 / 453
页数:9
相关论文
共 26 条
[1]   GABA-LABELED TERMINALS FORM PROPORTIONALLY MORE SYNAPSES WITH DOPAMINERGIC-NEURONS CONTAINING LOW-DENSITIES OF TYROSINE HYDROXYLASE-IMMUNOREACTIVITY IN RAT VENTRAL TEGMENTAL AREA [J].
BAYER, VE ;
PICKEL, VM .
BRAIN RESEARCH, 1991, 559 (01) :44-55
[2]   ANTICONVULSANT STEROIDS AND THE GABA BENZODIAZEPINE RECEPTOR-CHLORIDE IONOPHORE COMPLEX [J].
BELELLI, D ;
LAN, NC ;
GEE, KW .
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS, 1990, 14 (03) :315-322
[3]   ANXIOLYTIC EFFECTS OF 3A-HYDROXY-5A[BETA]-PREGNAN-20-ONE - ENDOGENOUS METABOLITES OF PROGESTERONE THAT ARE ACTIVE AT THE GABA-A RECEPTOR [J].
BITRAN, D ;
HILVERS, RJ ;
KELLOGG, CK .
BRAIN RESEARCH, 1991, 561 (01) :157-161
[4]  
BLAUSTEIN JD, 1983, HORMONES BEHAVIOUR H, P18
[5]   SEXUAL RECEPTIVITY - BRAIN SITES OF ESTROGEN ACTION IN FEMALE HAMSTERS [J].
DEBOLD, JF ;
MALSBURY, CW ;
HARRIS, VS ;
MALENKA, R .
PHYSIOLOGY & BEHAVIOR, 1982, 29 (04) :589-593
[6]   PROGESTERONE AND THE NEURAL MECHANISMS OF HAMSTER SEXUAL-BEHAVIOR [J].
DEBOLD, JF ;
FRYE, CA .
PSYCHONEUROENDOCRINOLOGY, 1994, 19 (5-7) :563-579
[7]   STEROID BOVINE SERUM-ALBUMIN CONJUGATES - MOLECULAR CHARACTERIZATION AND THEIR INTERACTION WITH ANDROGEN AND ESTROGEN-RECEPTORS [J].
DEGOEIJ, AFPM ;
VANZEELAND, JK ;
BEEK, CJL ;
BOSMAN, FT .
JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY, 1986, 24 (05) :1017-1031
[8]  
FREEMAN LM, 1993, METHODS NEUROSCIENCE, V11, P1
[9]   3-ALPHA-OH-DHP AND 5-ALPHA-THDOC IMPLANTS TO THE VENTRAL TEGMENTAL AREA FACILITATE SEXUAL RECEPTIVITY IN HAMSTERS AFTER PROGESTERONE PRIMING TO THE VENTRAL MEDIAL HYPOTHALAMUS [J].
FRYE, CA ;
DEBOLD, JF .
BRAIN RESEARCH, 1993, 612 (1-2) :130-137
[10]   PROGESTERONE METABOLITES, EFFECTIVE AT THE GABA(A) RECEPTOR COMPLEX, ATTENUATE PAIN SENSITIVITY IN RATS [J].
FRYE, CA ;
DUNCAN, JE .
BRAIN RESEARCH, 1994, 643 (1-2) :194-203