Finally, her myocardial infarction examination showed a creatine kinase-MB (CK-MB) of 118.0 ng/mL, a high sensitivity troponin-1 (HSTNI) of 0.669 ng/mL, and a brain natriuretic peptide (BNP) of 35,000 pg/mL (Additional file 1). This evidence concerns the gene NPPB and myocardial infarction.