Hyperoxia liquids preconditioning has the obvious protective effects in the myocardial ischemic reperfusion in rabbits. (4) Cardiocyte apoptosis is pertinent to the ischemic reperfusion injury.

• （4）细胞凋亡是缺血再灌注损伤的特征性改变之一，是缺血再灌注损伤过程中的一个重要环节。