AIM To compare the protective effects of norepinephrine preconditioning (NEPC) and ischemic preconditioning (IPC) on myocardial ischemic/reperfused injury in rats in vivo.

• 目的观察比较外源性微量去甲肾上腺素预处理及经典缺血预处理对在体大鼠缺血/再灌注心脏损伤的保护效应。