Besides, in a community-based study of subjects that without clinically evident CHD, higher glycated hemoglobin (HbA1c) is associated with elevated high-sensitivity cardiac troponin-T (hs-cTnT) among persons without clinically evident CHD, indicating that hyperglycemia contributes to myocardial injury beyond its effects on the development of clinical atherosclerotic coronary disease (17). This evidence concerns the gene TNNT2 and coronary artery disorder.