Clinical trial NCT02896543: The Relationship of Change of Dendritic Cells Fractalkine and P-selectin Patients With Acute Myocardial Infarction
Official title: The Relationship of Change of Dendritic Cells Fractalkine and P-selectin in Patients With Acute Myocardial Infarction
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Acute Myocardial Infarction
Keywords: dendritic cells
P-selectin
Lead sponsor: The First Affiliated Hospital of Dalian Medical University
Sponsor class: OTHER
First posted: 2016-09-12
Enrollment: 45
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: patients with STEMI.

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

Eligibility criteria: Inclusion Criteria:

* diagnosed as STEMI.
* with left ventricular ejection fraction（LVEF）\>=45%
* written informed consents are obtained.
* admitted within 24 hours after chest pain attacked.

Exclusion Criteria:

* 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

Primary outcomes:
measure: 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
timeFrame: 24 hours
Secondary outcomes:
measure: 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
timeFrame: 1 week
Other outcomes:
Locations:
city: Dalian
country: China
facility: The First Affiliated Hospital of Dalian Medical University
state: Liaoning
Study officials:
References:
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