In a rat model of myocardial infarction, UCB isolated HSCs overexpressing VEGF and PDGF (platelet-derived growth factor gene) [70], or VEGF and angiopoietin-1 (Ang1) genes [71] inhibited the development of cardiac muscle necrosis and increased capillary density in the myocardium. Here, ANGPT1 is linked to myocardial infarction.