At present, Du Jie's team has comprehensively carried out the work of early warning and intervention of S100A8/A9 after PCI for acute myocardial infarction: developed S100A8/A9 detection kit and monoclonal therapeutic antibody; and jointly carried out clinical research of “Early Warning of S100A8/A9 after PCI for Acute Myocardial Infarction”. The gene discussed is S100A8; the disease is myocardial infarction.