Related Experiment Video
Updated: May 31, 2025

Author Spotlight: Advancing the Analysis of Plasma Extracellular Vesicle Proteome for Cardiovascular Biomarker Studies
Published on: January 31, 2025
Evaluation of Plasma E-Selectin Concentration as a Risk Marker for Atherosclerotic Vascular Damage in Patients with
Monika Rac1, Michal Rac2, Andrzej Krzystolik3
1Department of Biochemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland.
Insights
Plasma E-selectin levels are not reliable for detecting atherosclerosis in stable coronary artery disease (CAD). Elevated triglycerides correlate with E-selectin, but imaging remains crucial for diagnosis.
Area of Science:
- Cardiovascular Medicine
- Immunology
Background:
- Inflammation markers in blood may signal increased risk of unstable atherosclerosis.
- Selectins, transmembrane glycoproteins, facilitate blood cell adhesion to the endothelium, contributing to inflammation.
Purpose of the Study:
- To investigate the relationship between plasma E-selectin levels and markers of atherosclerosis in patients with stable coronary artery disease (CAD).
Main Methods:
- Study included 100 patients with stable early-onset CAD and 50 controls without CAD.
- Methods involved biochemical analysis, ultrasound, and Doppler imaging of arteries and peripheral vessels.
Main Results:
- Elevated plasma E-selectin levels showed a strong correlation with higher triglyceride levels.
- No significant association was found between plasma E-selectin levels and various clinical, biochemical, or imaging measures of atherosclerosis.
Conclusions:
- Plasma E-selectin is not a dependable biomarker for identifying atherosclerotic plaques or complications in stable, managed CAD.
- Immunoassay measurement of E-selectin cannot substitute for standard cardiological and vascular imaging in diagnosing cardiovascular conditions.
Background:
Inflammation markers in the blood may indicate a higher risk of unstable atherosclerosis. Selectins, a group of transmembrane glycoproteins, contribute to inflammation by helping certain blood cells bind to the endothelium.
Methods:
The study included 100 patients with stable early-onset coronary artery disease (CAD), 75 men (aged 50-54) and 25 women (aged 55-64). Tests performed included biochemical analysis, ultrasound, and Doppler imaging of arteries and peripheral vessels. A biochemical control group of 50 cases without CAD (74% men, average age 48 ± 3.20 years) was also studied.
Results:
Higher triglyceride levels were strongly linked to elevated plasma E-selectin levels. However, no significant relationship was found between plasma E-selectin levels and biochemical, clinical, radiographic, or echographic measures.
Conclusion:
Plasma E-selectin levels are not a reliable marker for detecting atherosclerotic plaques or related problems in individuals with stable, well-managed CAD. While E-selectin levels can be measured in clinical labs using immunoassays, they cannot replace standard cardiological and vascular imaging tests for diagnosing cardiac or vascular conditions.

