Serum Tenascin-C Concentration in Patients With Acute Coronary Syndrome

Inclusion Criteria: .diagnosed as acute coronary syndrome,including STEMI,non-STEMI,and UAP. * with left ventricular ejection fraction（LVEF）\>=45% * written informed consents are obtained * admitted within 24 hours after chest pain attacked Exclusion Criteria: * complicated with rheumatic heart disease, coronary arteritis, hypertrophic cardiomyopathy or dilated cardiomyopathy * complicated with malignant tumor,the immune system diseases, blood system diseases, recently (within 2 weeks) taking glucocorticoid drugs, the use of immunosuppressive agents and cerebral infarction * with acute or chronic infection, surgery or trauma in the last month * secondary hypertension, severe liver dysfunction,severe renal insufficiency * with abnormal thyroid function or allergy to iodine agent * refusal to sign the informed consent