Objective: To study the effects of estrogen on the nitric oxide synthase positive neurons of hippocampal CA1 area of rats after 2VO (bilateral common carotid occlusion) and OVX(ovariectomy).

• 目的:研究雌激素对去势后慢性脑缺血大鼠海马CA1区一氧化氮合酶阳性神经元的影响。