TNNI3 and myocardial infarction: The authors confirmed these results in vivo, proving that the infusion of ADMSCs-EVs in a rat I/R model reduces the myocardial infarction (MI) size, and the serum level of the principal myocardial enzymes induced by I/R damage (creatine kinase–myocardial band, CK–MB, lactate dehydrogenase, LDL, and cardiac troponin I).