Effect of Fosinppril on Myocardial Cell Apoptosis and Apoptosis-associated Gene Expression in Chronic Heart Failure Rats / 中国循环杂志

ABSTRACT

Objective: To investigate the effects of fosinppril on myocardial cell apoptosis and apoptosis-associated gene expression in chronic heart failure (CHF) rats. Methods: CHF model was established by partially banding of abdominal aorta superior to renal artery. The experimental rats were randomly divided into 3 groups: Sham operation group and CHF group, the rats in both groups received stomach normal saline; Fosinopril group, the rats received stomach fosinopril 10 mg/kg?d.n=10 in each group and all animals were treated for 8 weeks. LVEDP, ±dp/dtmax and LVMI were examined, left ventricular myocardial cell apoptotic index (AI) was measured by TUNEL method, Bcl-2 and Bax protein levels were detected by immunohistochemistry and caspase-3 protein expression was assessed by Western blotting. Results: Compared with Sham operation group, CHF group had increased LVEDP, LVMI, AI, elevated protein expressions of Bax and Caspase-3,P Conclusion: Fosinopril may inhibit myocardial cell apoptosis which occurred during CHF, by up-regulating Bcl-2 expression and down-regulating expressions of Bax and Caspase-3 in CHF rats, therefore improve the cardiac function.