〔Abstract〕 Objective To investigate the pretreatment with Jiawei Danshen decoction against myocardial ischemia reperfusion injury in rats whether by regulating Beclin-1 and Atg5 expression of autophagy. Methods The 60 healthy SD rats were randomly divided into control (C) group, sham-operation (S) group, ischemia reperfusion injury (IRI) group, IRI+Jiawei Danshen decoction (JDS) group, IRI+JDY+Inhibitor (I) group, 12 rats in each group. The IRI model was established by ligating-relaxing the left anterior descending coronary of rats. Myocardia...