Objective To investigate the effects of coronary artery ligation precondition(CAIP) and femoral ligation precondition(FIP) on nitric oxide synthase in myocardial ischemic reperfusion injury and explore its impact on myocardial protection.

• 目的观察冠状动脉结扎预处置(CAIP)和股动脉阻断预处置(FIP)对缺血再灌注大鼠心肌一氧化氮合酶(NOS)的影响,探讨NOS在预处置心脏自身保护中的作用。