ArticleJournal of neuroendocrinology2025
A male-dominant cell group expressing calbindin-D28K and androgen receptor in the mouse preoptic area requires postnatal testicular androgens and histone deacetylation.
Article in Journal of neuroendocrinology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- A male-dominant cell group expressing calbindin-D28K and androgen receptor in the mouse preoptic area requires postnatal testicular androgens and histone deacetylation.Journal of neuroendocrinology · 2025Article
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Abstract
The mouse brain is masculinized by postnatal testicular androgens, which are active after conversion to estrogens and modulate gene expression epigenetically, at least in part. The preoptic area contains a sexually dimorphic nucleus (SDN) comprising calbindin D-28K (Calb) neurons with a male-biased sex difference in cell number (Calb-SDN), although the mechanisms responsible for the sex difference are not fully understood. We have previously demonstrated that Calb neurons expressing the androgen receptor (AR) are a male-dominant cell group of the Calb-SDN in pubertal mice, while Calb neurons without AR exist in both sexes with equal cell numbers. In this study, we investigated the mechanisms by which more Calb/AR neurons emerge in the male Calb-SDN than in the female one. Immunohistochemistry for Calb and AR was performed using the brain sections from pubertal male mice subjected to sham surgery or neonatal orchidectomy, from pubertal female mice treated with vehicle, testosterone, or estradiol during the postnatal period, and from pubertal male mice whose brains were treated with trichostatin A, a histone deacetylase inhibitor, during the postnatal period. Immunostained brain sections were analyzed stereologically to determine the numbers of Calb-immunopositive and AR-immunopositive cells (Calb
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