Methods Twenty goats were randomized into four groups: ischemia/reperfusion group (IR group, n=5), IPC group (n=5) ,DEP group (n=5) and 5-HD+IPC group(n=5), Goat hearts were subjected to 60 minutes of ischemia, followed by 90 minutes of reperfusion(RP).

• 方法 将20只山羊随机分为缺血再灌注组(IR组,n=5)、缺血预适应组(IPC组n=5)、钾通道开放剂组(DEP组n=5),IPC+钾通道抑制剂组(5-HD+IPC组n=5)。 各组阻断升主动脉(ACC)60min,心肌恢复血流灌注(RP)90min;