The Relationship of Change of Dendritic Cells Fractalkine and P-selectin Patients With Acute Myocardial Infarction
- Conditions
- Acute Myocardial Infarction
- Interventions
- Other: measurement
- Registration Number
- NCT02896543
- Lead Sponsor
- The First Affiliated Hospital of Dalian Medical University
- Brief Summary
This study evaluates the relationship of change of dendritic cells fractalkine and P-selectin in patients with acute myocardial infarction.
- Detailed Description
Dendritic cells (DCs) are the most potent antigen-presenting cells, with the unique ability to initiate a primary immune response to certain antigens by activation of "naive" T cells, and are actively related to the process of atherosclerosis. Two DC subsets, myeloid DCs (mDCs) and plasmacytoid DCs (pDCs), were identified in humans. In our previous study, the investigators found that change of dendritic cells and fractalkine in patients with acute myocardial infarction. At the same time, the level of P-selectin increased. In addition, the interaction of dendritic cells and P-selectin promotes the progress of atherosclerosis. In this study, the investigators want to see whether the balance between mDCs and pDCs is altered in patients with acute myocardial infarction. sP-selectin is one of the members of the family of proteins, mediate leukocyte adhesion and rolling in vascular endothelial, studies have shown that in patients with unstable angina and acute myocardial infarction in serum sP-selectin protein increased significantly, showed that sP-selectin associated with the activity of coronary heart disease, causing plaque instability.However, there is few relevant studies about the relationship of dendritic cells and P-selectin in patients with acute myocardial infarction. This study valuates the relationship of dendritic cells and P-selectin in patients with acute myocardial infarction
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 45
- diagnosed as STEMI.
- with left ventricular ejection fraction（LVEF）>=45%
- written informed consents are obtained.
- admitted within 24 hours after chest pain attacked.
- Obvious blood system diseases.
- Combination with other organs function failure: severe liver dysfunction, severe renal insufficiency,severe heart failure (NYHA class 3 and 4), acute or chronic infectious diseases, disease of immune system, asthma, malignant tumor, other advanced disease, etc.
- Pregnant women and planned pregnancy women.
- With drug allergy or contraindications.
- refusal to sign the informed consent
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description STEMI group measurement The study population consists of 30 patients with ST-elevated acute myocardial infarction (STEMI,n = 30) who are admitted within 24 hours after chest pain attacks. They will all undergo coronary angiography.The diagnosis is made according to American Heart Association (AHA, 2014 and 2015) guidelines. Patients who had obvious blood system diseases,severe liver dysfunction, severe renal insufficiency,severe heart failure (NYHA class 3 and 4), acute or chronic infectious diseases, disease of immune system, asthma, malignant tumor, other advanced disease are excluded. Control group measurement 15 age and body mass index matched healthy subjects with neither coronary artery disease nor any of the components of the metabolic syndrome are enrolled as Control group.
- Primary Outcome Measures
Name Time Method The number of dendritic cells(DCs)(percentage of total white blood cells) and the concentration of sP-selectin(ng/ml) within 24 hours after chest pain attacks 24 hours The number of dendritic cells(DCs) in percentage of total white blood cells;the concentration of sP-selectin in ng/ml
- Secondary Outcome Measures
Name Time Method Change of peripheral blood DCs number (percentage of total white blood cells) and its fractalkine change of peripheral blood DCs number(percentage of total white blood cells) within 1 week after chest pain attacks 1 week Dendritic cells(DCs) number in percentage of total white blood cells;its fractalkine change of peripheral blood DCs in percentage of total white blood cells
Trial Locations
- Locations (1)
The First Affiliated Hospital of Dalian Medical University
🇨🇳Dalian, Liaoning, China