Rats in the ischemic postconditioning group were treated for 40-minute ischemia, reperfused for 10 s and 10 s ischemia for three cycles, and then reperfused for 239 minutes.

• 缺血后处理组,缺血40min后,再灌注10s,缺血10s,连续3个循环,然后再灌注239min;