The anti myocardial ischemic effect of angiotensin converting enzyme inhibitor (ACEI) and angiotensin Ⅱ receptor antagonist have been substantiated by clinicians and basic researchers, indicating that the local intracardiac renin angiotensin system (RAS) may be activated under such pathological state. Nevertheless, there is no report on the integrated changes of intracardiac RAS, especially chnges of molecular levels after myocardial ischemia. Our study demonstrated that the time and extent of myocardial i...