Abstract: To study the expression of ET of early ischemic myocardium, we designed a model of early myocardial ischemia (EMI) in rats The study was conducted with SABC method and HE staining Cardiac myocytes of ischemia showed a little ET-positive at 60-min Cardiac myocytes, endothelium and smooth muscle of vessel showed ET-positive staining in the area of EMI after 120-min Staining was negative for Ischemia myocardium at 30-min and for the control group No change was seen with HE staining in all groups The data indicates that ET-SABC method may reveal the injury of myocardial ischemia 60-min and longer and may provide a new marker to diagnose EMI in forensic pathology

Key words: Early myocardial ischemia, ET, ABC method(Original article on page 141)