Fig. 1

a MicroRNA-30a (miR-30a) level decreases in myocardial cells with I–R injury detected by real time-polymerase chain reaction (RT-PCR). I–R-2 h, I–R-6 h and I–R-24 h denote subjection of myocardial cells to reperfusion for 2, 6, and 24 h followed by ischemic injury, respectively. b Sal B increases miR-30a expression in a dose-dependent manner.. Values are the mean ± SD from 5 wells per group. *P <0.05 vs control or I–R-24 h group