The Clinical Diagnosis Meaning of MIF in Coronary Heart Disease

Completed

Brief Summary: Macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine that promote the inflammatory response.In animal studies, it has been found that MIF is released in the ischaemic heart, promoting glucose uptake and protecting the heart from ischaemia-reperfusion injury.The MIF concentration, influenced by age and myocardial ischemia, have different impact on myocardial functional recovery after ischemia.Therefore, the purpose of this experiment is to study the clinical significance of MIF in patients with coronary heart disease.

Detailed Description: MIF is a pleiotropic cytokine that promote the inflammatory response. MIF is expressed in several cell types,including monocytes/macrophages, vascular smooth muscle and cardiomyocytes, and is released on stimulation from pre-formed storage pools. A foreign study reported that MIF had demonstrated to offer protection from I/R-injury by activating adenosine monophosphate-activated protein kinase (AMPK) and inhibiting c-Jun Nterminal kinase (JNK)-induced apoptosis of cardiomyocytes. In addition, animal experiments showed that MIF was reduced in aged heart compared with young heart. Coronary heart disease is a chronic ischemic disease, in which MIF may play as a protective factor during the whole procedure.

We observed individuals who will be taking coronary angiography during the hospitalization. Individuals will be assigned to coronary-artery-disease group, which included acute coronary syndromes and stable ischemic heart disease, or non-coronary-artery-disease group, according to coronary angiography. All participants will be extracted 3ml blood sample 5 minutes before coronary angiography. Coronary-artery-disease group will be taken another two blood samples, 5 minutes after the opening of the balloon and 5 minutes after the stents have been implanted, respectively.

Recruitment & Eligibility

Inclusion Criteria

Control group:

enroll individuals who confirmed by coronary angiography without coronary heart
The age between 20 and 80 years old.
Alanine aminotransferase(ALT):10-55U/L, Aspartate aminotransferase(AST):0-60U/L
Glucose(GLU-S):3.9-6.1mmol/L
Triglycerides(TRIG):0.56-1.7mmol/L, cholesterol(CHOL):3.1-5.2mmol/L, High density lipoprotein(HDL):0.78-1.96mmol/L, High density lipoprotein(LDL):2.07-3.1mmol/L

Experimental group:

Exclusion Criteria

Inflammatory diseases,such as rheumatoid arthritis,sepsis,asthma and acute respiratory distress syndrome.
Diabetes

Primary Outcome Measures

Name	Time	Method
Comparison Between Coronary-artery-disease Group and Non-coronary-artery-disease Group on MIF Concentration	Before surgery 5 minutes	Participants will be extracted 3ml blood before surgery 5 minutes,detection MIF concentration on two groups.We hypothesis that the experimental group will be higher than control group.

Secondary Outcome Measures

Name	Time	Method
Comparison the Change of MIF Before and After Percutaneous Coronary Intervention （PCI） at the Patients Who Are Acute Coronary Syndromes and Stable Ischemic Heart Disease	3 times including before surgery 5 minutes, 5 minutes after the opening of the balloon and after surgery 5 minutes	Percutaneous Coronary Intervention are extracted 3 times including before surgery 5 minutes , 5 minutes after the opening of the balloon and after surgery 5 minutes ,and detection MIF concentration .