CST3 and acute myocardial infarction: Abbreviations: AMI = acute myocardial infarction, CAD = coronary artery disease, Cys C = Cystatin C, eGFR = estimated glomerular filtration rate, GS = Gensini score, HCY = homocysteine, HDL-C = high-density lipoprotein cholesterol, LDL-C = low-density lipoprotein cholesterol, SAP = stable angina pectoris, TC = total cholesterol, UAP = unstable angina pectoris.