In vivo efficacy of statin rosuvastatin on myocardial infarction. (A) Statin treatment markedly decreased the mitochondrial ROS in a myocardial infarction rat model. (B) Statin treatment decreased myocardial infarction area in the experimental rats. (magnification, ×50). (C) Statin treatment decreased thrombogenesis in the experimental rats after the 60-day treatment. (D) Statin treatment decreased Bax and Bad production in the experimental rats after the 60-day treatment. (E) Statin improved the cardiac function indicators LVPWd and LVEDD. (F) Statin increased expression level of JAK and STAT3 in myocardial tissue. Scale bar, 50 µm. *P<0.05, **P<0.01. ROS, reactive oxygen species; LVPWd, left ventricular end-diastolic posterior wall thickness; LVEDD, left ventricular end-diastolic diameter; JAK, Janus kinase; STAT, signal transducer and activator of transcription.