BCL2 and myocardial infarction: Consistent with TUNEL staining, apoptotic protein level of Bax was obviously increased (2.388 ± 0.130 vs. 1.000 ± 0.095 from Sham, P < 0.05) 3 days after MI while anti-apoptotic protein level of Bcl2 level was downregulated (0.359 ± 0.041 vs. 1.023 ± 0.071 from Sham, P < 0.05).