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Bouvier S, Bastide S, Chouirfa S, Nouvellon É, Mercier É, Bigot L, Lavigne G, Cayla G, Pérez-Martin A, Gris JC. Reliability of hemostasis biomarkers is affected by time-dependent intra-patient variability. J Thromb Haemost 2018; 16:S1538-7836(22)02218-8. [PMID: 29883046 DOI: 10.1111/jth.14198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Indexed: 02/06/2023]
Abstract
Essentials Nucleosomes and free DNA are two newly described biomarkers in venous thromboembolism (VTE). Reliability of nucleosomes, plasma free DNA and conventional hemostasis markers were studied. Hemostasis biological parameters vary over a short time-frame in VTE patients. Hemostasis biological parameters also vary over a short time-frame in healthy controls. SUMMARY Background Previous studies have associated neutrophil-derived circulating nucleosomes and plasma free DNA with venous thromboembolism (VTE). However, there are few data concerning these two biomarkers and no studies have compared the reliability of nucleosomes and plasma free DNA against that of conventional hemostasis markers. Objectives We performed a 3-year prospective study of nucleosomes and plasma free DNA levels in comparison with conventional hemostatic biomarkers and blood cells. Patients/Methods Fifteen healthy controls and 22 randomly selected patients with a history of VTE were followed monthly for 6 months. The reliability of these markers was evaluated by the intraclass correlation coefficient (ICCs). Results and Conclusions In healthy controls and patients, we found a low reliability for nucleosomes and plasma free DNA, with ICCs at 0.538 (95% confidence interval [CI], 0.334-0.764) and 0.091 (95% CI, -0.026-0.328), respectively, in the healthy controls, and at 0.213 (95% CI, 0.042-0.463) and 0.161 (CI 95%, 0.008-0.398) in the patient group. For the conventional hemostasis biomarkers and for blood cells, reliability ranged from poor to good in the healthy volunteers and from poor to acceptable in the patient group. Our study shows for the first time that hemostasis biological parameters spontaneously vary over a short time-frame in VTE patients and, more surprisingly, in normal individuals. The clinical value of such intra-individual variations is currently unknown. This variability might mean reinterpreting diagnostic or prognostic models based on static evaluation of individuals. Studying the intrinsic value of individual patterns of markers' variability is warranted.
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Affiliation(s)
- S Bouvier
- Department of Haematology, University Hospital, Nîmes, France
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
- Faculty of Pharmaceutical and Biological Sciences, Montpellier University, Montpellier, France
| | - S Bastide
- Department of Biostatistics, Public Health and Innovation in Methodology, Nîmes University Hospital, Nîmes, France
- Research Laboratory EA 2415, Montpellier University, Montpellier, France
| | - S Chouirfa
- Department of Haematology, University Hospital, Nîmes, France
| | - É Nouvellon
- Department of Haematology, University Hospital, Nîmes, France
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
| | - É Mercier
- Department of Haematology, University Hospital, Nîmes, France
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
- Faculty of Pharmaceutical and Biological Sciences, Montpellier University, Montpellier, France
| | - L Bigot
- Department of Haematology, University Hospital, Nîmes, France
| | - G Lavigne
- Department of Haematology, University Hospital, Nîmes, France
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
| | - G Cayla
- Department of Cardiology, University Hospital, Nîmes, France
| | - A Pérez-Martin
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
- Department of Vascular Medicine, University Hospital, Nîmes, France
| | - J-C Gris
- Department of Haematology, University Hospital, Nîmes, France
- Research Laboratory EA 2992, Montpellier University, Montpellier, France
- Faculty of Pharmaceutical and Biological Sciences, Montpellier University, Montpellier, France
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