Fig. 1. Release of cardiac troponins in acute myocardial infarction. Top: a diagram of a cardiomyocyte that is in the process of releasing biomarkers. Most troponins exist as a tripartite complex of C, I, and T components that are bound to actin filaments, although a small amount of troponin is free in the cytoplasm. Bottom: the pattern of release of the different biomarkers based on time after an acute myocardial infarction (AMI) including myoglobin, creatine kinase (CK)-myocardial band (MB), lactate dehydrogenase (LD) 1, cardiac troponin I (cTnI), and cardiac troponin T (cTnT).