
Keywords: 5α-DHP; 5α-pregnanedione or 5α-dihydroprogesterone; 5β-DHP; 5β-pregnanedione or 5β-dihydroprogesterone; P; progesterone; ovx; ovariectomized; E2; estradiol; EB; estradiol benzoate; DM; dipole moment; ANOVA; analysis of variance; CNS; central nervous