BCL2 and myocardial infarction: By downregulating the expression of the pro-apoptotic protein Bax, upregulating the anti-apoptotic protein Bcl-2 expression and the Bcl-2/Bax ratio, Yiqi Huoxue formula can improve the cardiac function of rats with myocardial infarction, thereby alleviating the myocardial apoptotic injury and protecting the heart (109).