For the experimental group, a transobital electrocoagulation was carried out to occlude the middle cerebral artery, whereas the control group only exposed the middle cerebral artery, but no electrocoagulation was performed.

• 第一组(对照组)：8只，仅暴露右侧大脑中动脉，不予电凝； 第二组(MCAO组)：12只，经眶电凝右侧大脑中动脉；