AimTo investigate the association of serum high sensitivity C-reactive protein (hs-CRP) and Periostin protein with coronary artery stenosis in coronary heart disease patients.MethodsSerum hs-CRP and Periostin protein were measured using enzyme-linked immunosorbent assay (ELISA) in 87 patients with coronary heart disease, of which 57 patients were diagnosed as acute myocardial infarction (AMI) and 30 were unstable angina pectoris (UAP).Coronary artery stenosis was characterized by Gensini scores.ResultsSerum hs-CRP and Periostin protein were significantly increased in AMI patients compared with UAP (P<0.05 or P<0.001) and they were in positive correlation with Gensini score (P<0.05 or P<0.001).The two protein were also in positive correlation with each other (P<0.05).