Methods We made infarct models of rats with thread embolism and observed the changes of the infarct volume in rats which had re perfused 4 hours after 2 hours embolism.

• 方法采用线栓法制作大鼠局灶性脑缺血再灌流模型,大脑中动脉阻塞2小时,再灌流4小时后观察梗死体积的变化。