Response of ERβ and aromatase expression in the monkey hippocampal formation to ovariectomy and menopause

► ERβ is expressed in the plasma membrane of subicular neurons of monkey hippocampus. ► ERβ, but not aromatase, is upregulated in menopausal monkeys. ► Aromatase, but not ERβ, is upregulated in ovariectomized monkeys.