HIF1A and myocardial infarction: Coincidentally, another study confirmed that astragaloside IV-induced BMSCs exosomes (AS-IV-BMSC-Exos) can reduce the tissue disorder of myocardial infarction area and myocardial tissue collagen deposition, increase the number of tubes formed, and protect the cardiac function of myocardial infarction mice through the miR-411/HIF-1a axis (170).