Methods The multi-infarction dementia model was induced by injecting cruor embolus of the same kind rats into the internal carotid artery.The SOD and MDA of serum was measured.

• 方法 采用同种大鼠自然干燥血凝块颈内动脉注入制备多发性脑梗死性痴呆大鼠模型，测定多发性脑梗死大鼠血清SOD、MDA的含量，观察脑组织形态学改变。