A high level of AR expression in the human hippocampus was found in both males and females in this study, alluding to the importance of androgens as neurosteroids in both sexes:
AR mRNA expression was in the same order of magnitude than in prostate tissue, known for its high expression of AR.
The finding of high levels of AR mRNA in the human hippocampus argues for a genomic effect of androgens in hippocampal functions. Since we could not detect any differences in AR mRNA expression with respect to sex, age and hippocampal laterality we assume that androgens might play a more generalized role in modifying neuronal function. Our findings are consistent with previous observations in rats  and support the idea that expression levels of ARs in the human hippocampus are maintained throughout life regardless of sex or other factors which may influence hormonal status. Since the human hippocampus contains both the enzymes 17 b-HSD 3 and 5a-reductase 1 for formation of either testosterone or dihydrotestosterone and the receptor necessary for androgen action, this brain area seems to be an important target for genomic effects of locally synthesized androgens.
@axolotl, you might be interested in what is contained in the full version of this one.