CASP7 and myocardial infarction: Mao et al. [15] found that microRNA (miR)-23a inhibited apoptosis of BMSCs induced by TNF-α through the regulation of caspase-7 in vitro, and that injection of BMSCs overexpressing miR-23a reduced infarct size and improved left ventricular (LV) function in a rat MI model, providing an alternative treatment strategy for patients with heart failure caused by MI who are not optimal candidates for surgical treatment.