Method: Rat model of acute local cerebral ischemia was made by ligating middle cerebral artery.The cerebral damage was evaluated by staining with hematoxylin and eosin((HE).

• 方法:采用闭夹大脑中动脉造成局部脑缺血模型,对实验标本作HE染色后观察其脑组织的病理学改变。