Projects per year
INTRODUCTION: Activated protein C (APC) resistance is a major risk factor of venous thrombosis which may be acquired by hormonal therapy or other causes. The FibWave, a sensitive global clot-based assay design to analyze the coagulation kinetics in plasma, may be a good candidate to assess this prothrombotic state. This study aims to assess the suitability of the FibWave to differentiate the coagulation kinetics of women on oral contraceptives.
MATERIALS AND METHODS: Fifty-four healthy volunteers were divided into 5 groups: men [n = 13], women not using hormonal contraception [n = 12], women using second [n = 12] or third generation [n = 12] combined oral contraceptives, and women using progestin only contraceptive [n = 5]. Patients with coagulation abnormalities were also assessed [n = 8]. The APC resistance was assessed on the FibWave using exogenous APC or Protac, and on the Calibrated Automated Thrombogram using the ETP-based APC resistance assay.
RESULTS: Either in presence or in absence of APC or Protac, the FibWave was able to detect a hypercoagulable state in plasma samples. All combined oral contraceptives showed a lower FW-Max1 , FW-Max2, and FW-Min2 percentage of inhibition and a lower FW-Ttpeak ratio than the other groups. The sensitivity of the FibWave was similar to the one of the ETP-based APC resistance assay.
CONCLUSION: The FibWave is able to differentiate APC resistance levels observed in women on combined oral contraceptive. The FW-Max1 , FW-Max2, and to a lesser degree FW-Min2 were identified as the most sensitive parameters with a similar performance to the ETP-based APC resistance assay.
FingerprintDive into the research topics of 'Assessment of acquired activated protein C resistance with the FibWave and comparison with the ETP-based APC resistance'. Together they form a unique fingerprint.
1/09/18 → …
1/09/19 → 31/08/23
Evrard, J., 11 Apr 2023
Supervisor: Douxfils, J. (Supervisor), Dogne, J. (Co-Supervisor), Lucas, S. (Jury), MASEREEL, B. (Jury), MULLIER, F. (Jury), Demeure, F. (Jury), Verhamme, P. B. (External person) (Jury), TEN CATE, H. (External person) (Jury) & Lebreton, A. (External person) (Jury)
Student thesis: Doc types › Doctor of Biomedical and Pharmaceutical Sciences