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Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor
Published on: May 2, 2025
186
Platelet Function Assay Using Dielectric Blood Coagulometry
Yoshihito Hayashi1, Yudai Yamamoto2, Aya Murata1
1Biomedical R&D Department, R&D Division, Medical Business Group, Sony Imaging Products & Solutions Inc., Bunkyo-ku 113-8510, Tokyo, Japan.
Analytical Chemistry
|January 23, 2025
Summary
This study introduces a novel platelet function test using dielectric permittivity to monitor antiplatelet drug effectiveness. The test assesses platelet contribution to blood coagulation, offering improved antiplatelet therapy monitoring.
Area of Science:
- Biomedical Engineering
- Hematology
- Clinical Chemistry
Background:
- Platelet hemostatic function is crucial and complements blood coagulation.
- Traditional platelet function tests lack clinical effectiveness for antiplatelet drug monitoring.
- A new test principle is needed to evaluate platelet function and antiplatelet drug effects via coagulation reactions.
Purpose of the Study:
- To propose and validate a novel test principle for assessing platelet function and antiplatelet drug effects.
- To utilize blood coagulation reactions as a basis for the new platelet function test.
- To demonstrate the clinical applicability of the test for antiplatelet therapy monitoring.
Main Methods:
- Developed a new test principle measuring 1 MHz dielectric permittivity during blood coagulation.
- Validated the principle using blood samples from healthy volunteers (n=11).
- Tested the effects of aspirin, prostaglandin E1, and ticagrelor at various concentrations.
Main Results:
- Platelet function was assessed by monitoring the peak dielectric permittivity during coagulation.
- Agonist-induced platelet aggregation was inhibited by antiplatelet drugs.
- Activated platelets interacted with fibrin, influencing the permittivity peak, confirming the test's principle.
Conclusions:
- The proposed platelet function assay accurately assesses platelet contribution to coagulation.
- The test principle is validated for monitoring the effects of antiplatelet drugs.
- This assay offers a promising tool for effective antiplatelet therapy monitoring.
