TNNI3 and myocardial infarction: Mdivi-1 administration reduced serum cTnI and LDH levels compared with that of MI/R group treated with vehicle (cTnI: 29.7 ± 5.1 vs. 59.3 ± 8.1 ng/mL in MI/R group, P < 0.01, Fig. 5a; LDH: 512 ± 47 vs. 784 ± 52 U/L in MI/R group, P < 0.01, Fig. 5b).