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Published on: May 28, 2019
The Relationship Between the Level of Serum ESM-1 and Lp-PLA2 in Patients With Acute ST-Segment Elevation Myocardial
Peng Wei1,2, Bin Zong2, Xuekui Liu3
1Department of Cardiology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China.
Insights
Endothelial cell-specific molecule 1 (ESM-1) and lipoprotein-associated phospholipase A2 (Lp-PLA2) are elevated in acute ST-segment elevation myocardial infarction (STEMI) patients. These biomarkers are significantly correlated, suggesting their potential as diagnostic tools for STEMI.
Area of Science:
- Cardiovascular Medicine
- Biomarker Discovery
- Inflammation Research
Background:
- Acute ST-segment elevation myocardial infarction (STEMI) is a critical cardiovascular disease characterized by endothelial dysfunction and inflammation.
- Endothelial cell-specific molecule 1 (ESM-1) and lipoprotein-associated phospholipase A2 (Lp-PLA2) are implicated in STEMI pathogenesis.
- The correlation between ESM-1 and Lp-PLA2 in STEMI patients remains unexplored.
Purpose of the Study:
- To investigate the serum levels of ESM-1 and Lp-PLA2 in patients with acute STEMI.
- To evaluate the relationship and clinical significance of ESM-1 and Lp-PLA2 as potential biomarkers for acute STEMI.
Main Methods:
- Enzyme-linked immunosorbent assay (ELISA) was used to measure serum ESM-1 and Lp-PLA2 levels.
- A cohort of 37 acute STEMI patients and 24 healthy controls was studied.
- Blood samples were collected from the median cubital vein upon patient enrollment.
Main Results:
- Serum levels of ESM-1 and Lp-PLA2 were significantly higher in STEMI patients compared to controls (P < 0.05).
- A strong positive correlation was observed between serum ESM-1 and Lp-PLA2 levels (r² = 0.8131, P < 0.0001).
Conclusions:
- ESM-1, an endothelial dysfunction marker, and Lp-PLA2, an inflammatory marker, are significantly elevated and correlated in acute STEMI.
- These biomarkers demonstrate potential as novel and effective indicators for the diagnosis and evaluation of acute STEMI.
Abstract:
Acute ST-segment elevation myocardial infarction (STEMI) is the most lethal coronary heart disease with vascular endothelium dysfunction and inflammation in the disease development process. Endothelial cell-specific molecule 1 (ESM-1) and lipoprotein-associated phospholipase A2 (Lp-PLA2) are important for the diagnosis and characterization of STEMI. To date, no studies have reported the correlation between ESM-1 and Lp-PLA2 levels in patients with STEMI, which may be an important predictor of the fatal disease. To measure the level of serum ESM-1 and Lp-PLA2, and to evaluate the relationship and the clinical significance of these two biomarkers in patients with acute STEMI, 37 inpatients with acute STEMI were sequentially enrolled in the research group and 24 study objects with normal coronary artery function were included in the control group. The measurement of the relative parameters was done by enzyme-linked immunosorbent assay using blood samples taken from the median cubital vein while the inpatients were enrolled. The levels of serum SEM-1 and Lp-PLA2 were significantly higher in patients with acute STEMI than in study objects with normal coronary artery function (P < 0.05). A significant correlation of serum SEM-1 and Lp-PLA2 was observed, leading to close linearity (r2 = 0.8131, P < 0.0001). In conclusion, the endothelium dysfunction factor ESM-1 and inflammatory factor Lp-PLA2 are significantly higher and correlated in patients with acute STEMI. These two factors could be novel and effective biomarkers for acute STEMI diagnosis and evaluation.
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