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Published on: January 28, 2020
[Monocyte chemotactic protein-1 expression in coronary atherosclerosis plaque of sudden coronary death patients]
Xiang-ping Feng1, Wen-bin Dong, Xin-shan Chen
1Faculty of Forensic Medicine, Wenzhou Medical College, Wenzhou 325035, China. fxp@wzmc.net
Insights
Monocyte chemotactic protein 1 (MCP-1) expression is elevated in the coronary atherosclerosis plaques of sudden coronary death (SCD) patients, indicating its role in the condition.
Area of Science:
- Cardiovascular Pathology
- Immunology
- Molecular Biology
Background:
- Coronary atherosclerosis is a leading cause of death.
- Sudden coronary death (SCD) is often linked to advanced atherosclerosis.
- The role of specific inflammatory markers in SCD requires further elucidation.
Purpose of the Study:
- To quantify monocyte chemotactic protein 1 (MCP-1) expression in coronary atherosclerotic plaques.
- To determine the association between MCP-1 levels and SCD.
- To compare MCP-1 expression in SCD patients versus control groups.
Main Methods:
- Analysis of autopsy heart samples from 90 individuals (36 SCD, 28 non-SCD CHD, 26 non-cardiac death).
- Utilized immunohistochemistry SABC techniques to detect MCP-1.
- Employed computerized image analysis to quantify positive MCP-1 cell area.
Main Results:
- MCP-1 expression (both R and A metrics) was significantly higher in the SCD group compared to non-SCD CHD and non-cardiac death control groups (P=0.04 and P=0.00).
- No significant difference in MCP-1 expression was observed between the two control groups.
- These findings suggest a strong correlation between elevated MCP-1 and SCD.
Conclusions:
- MCP-1 expression is significantly increased in coronary atherosclerotic plaques of SCD patients.
- Elevated MCP-1 may be a key factor contributing to the pathogenesis of SCD.
- Further research into MCP-1's role could inform therapeutic strategies for preventing SCD.
Objective:
To investigate the expression of monocyte chemotactic protein 1 (MCP-1) in coronary atherosclerosis plaque of sudden coronary death (SCD) patients and the relationship between MCP-1 expression and SCD.
Methods:
Autopsy heart samples (n = 90) collected during 2001 - 2003 were divided to SCD group (n = 36) and 2 control groups: control group I, non-SCD CHD (n = 28), control group II, non-cardiac death (n = 26). The immuno-histochemistry SABC techniques (R, positive MCP-1 cell area/totl area) and computerized images analysis (A) were performed to detect the expression of MCP-1 in different groups.
Results:
R and A in plaques are significant higher in SCD group than control group I and II (0.1264 +/- 0.013 vs 0.0269 +/- 0.0110 and 0.0267 +/- 0.0100, P = 0.04), (0.4534 +/- 0.083 vs 0.2303 +/- 0.040 and 0.2158 +/- 0.0400, P = 0.00), and similar between control group I and control group II.
Conclusions:
MCP-1 expression is increased in coronary atherosclerosis plaque of SCD patients.
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