observed and calculated the apoptotic cells by TUNEL in the dorsolateral subventricular zone(SVZdl) and the anterior subventricular zone(SVZa) ;

• 采用TUNEL法结合HE染色显微镜下观察细胞形态，分别了解脑缺血后脑室下区背侧、前端细胞凋亡变化；