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Photomicrographs showing the AR-immunoreactive (IR) cells (stained with rabbit polyclonal antibody, Affinity Bioreagent) in the medial preoptic area, where gonadal steroids regulate male sexual behaviors. AR-IR cells were not at all reduced and may have been increased in αβERKO mice (B) compared with αβWT mice (A) brains. (Scale bar: 100 μm.)
