SIRT3 and myocardial infarction: Using BMCs and EPCs from wild type (WT) mice and Sirt3 knockout (Sirt3KO) mice, this study was to determine: (1) whether loss of Sirt3 in EPCs reduces angiogenic growth factor expression and blunts their proangiogenic and anti-apoptotic capacities; (2) whether loss of Sirt3 in BMCs dampens BMC-mediated angiogenesis and cardiac repair in post-MI mice.