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Updated: Jul 13, 2026

Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor
Published on: May 2, 2025
C-reactive protein levels increase after exercise testing in patients with increased platelet reactivity
Oyku Gulmez1, Cagatay Ertan, Aylin Yildirir
1Department of Cardiology, Baskent University Faculty of Medicine, Ankara, Turkey. gulmezoyku@yahoo.com
In patients taking aspirin for coronary artery disease, increased platelet reactivity was linked to higher C-reactive protein (CRP) levels, especially after exercise. This suggests a connection between platelet function and inflammation markers.
Area of Science:
- Cardiology
- Inflammation Research
- Pharmacology
Background:
- Aspirin is used for its anti-inflammatory properties, potentially affecting C-reactive protein (CRP) levels.
- Some patients exhibit persistent increased platelet reactivity despite aspirin therapy.
- Coronary artery disease (CAD) management often involves aspirin, making platelet function a key consideration.
Purpose of the Study:
- To investigate the impact of increased platelet reactivity on C-reactive protein (CRP) levels.
- To assess CRP changes at rest and post-exercise in patients with suspected or documented CAD on aspirin therapy.
- To explore the relationship between platelet function and inflammatory markers in the context of CAD.
Main Methods:
- 100 patients with CAD on aspirin (100-300 mg/day) were studied.
- Platelet reactivity was measured using the Platelet Function Analyzer-100.
- C-reactive protein (CRP) levels were analyzed before and after a treadmill test.
Main Results:
- 82 patients had normal platelet reactivity (Group A), while 18 showed increased reactivity (Group B).
- A statistically significant increase in CRP levels post-exercise was observed in patients with increased platelet reactivity (Group B).
- Group A CRP levels showed a non-significant trend towards increase post-exercise.
Conclusions:
- Increased platelet reactivity is associated with elevated C-reactive protein (CRP) levels in patients on aspirin therapy.
- The findings highlight a potential link between platelet function and inflammatory response in CAD patients.
- Further research is needed to determine the clinical significance of these associations.
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