The MACO/R group was divided into six groups according to different time points:2 hours,6 hours,12 hours,24 hours,3 days to 7 days and compared with control group.

• 方法:选取SD大鼠56只制备MCAO/R大鼠模型,依照再灌注时间的不同分为2,6,12,24h,3d及7d共6组,与正常组对照。