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The effects of intracerebroventricular administration of reduced metabolites of progesterone on locomotor activity and on exploration in the elevated plus-maze were assessed in adult female rats. Allopregnanolone (3 alpha-hydroxy-5 alpha-pregnan-20-one; 1.25, 5.0, and 10 micrograms) and pregnanolone (3 alpha-hydroxy-5 beta-pregnan-20-one; 2.5, 5.0, and 10(More)
The putative psychotropic effect of the anabolic-androgenic steroid, testosterone propionate (TP), was determined in intact adult male rats after 1 or 2 weeks of continued exposure via subcutaneously implanted capsules. Behavior was assessed in a novel open-field arena and in the elevated plus-maze. In addition, gamma-aminobutyric acid (GABA)-stimulated(More)
The effect of ovarian steroid hormones on the behavioral and neurochemical sensitivity of the gamma-aminobutyric acid (GABA)-benzodiazepine (BZD) receptor chloride ion channel complex was studied. Locomotor activity and behavior in the elevated plus maze were examined in female rats of various ovarian states as was the efficacy and potency of(More)
Previous research in this laboratory has shown that chronic treatment of adult male rats with an anabolic-androgenic steroid (AAS) produced anxiolytic behavior and increased the functional response of cortical gamma-aminobutyric acid(A) (GABA(A)) receptors. The experiments reported here were aimed at further characterizing the effect of chronic AAS exposure(More)
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