NOTCH1 and myocardial infarction: In the 2% SAP hydrogel, thedelivery of the peptide mimetic of Notch1 ligand Jagged1 (RJ) to the infarctedrat heart could enhance cardiac function and contractility, concurrently reducefibrosis, increase the endothelial vascular area, and ameliorate the expressionof ki67 in myocardial infarction [60].