Fig. 4

YQHX treatment improved myocardial ultrastructure and mitochondrial function in myocardial infarction rat model. a Effect of YQHX treatment on the myocardial ultrastructure in myocardial infarction rat model. Scale bars = 2.0 μm; Scale bars = 500 nm. b Effects of YQHX treatment on mitochondrial function in MI rat model. Values were represented as mean ± SD (n = 5). ***P < 0.001 versus Sham; ###P < 0.001 versus MI