BECN1 and myocardial infarction: So we chose mouse models with heterozygous deletion of autophagy‐related gene Beclin1 (Beclin1+/−) or deletion of mitophagy receptor Fundc1 (Fundc1−/−, Fundc1 KO) to mimic the deficiency of general autophagy or mitophagy, and compared their cardiac functions after acute MI.