Cardiac troponin I (cTnI), a biomarker of myocardial injury, is recommended by international guidelines as the gold standard for diagnosis of MI and is mainly measured by high-sensitivity (hs-cTnI) kits prepared with antibodies (Clerico et al., 2020; Cen et al., 2021). Here, TNNI3 is linked to myocardial infarction.