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van Dievoet MA, Morimont L, Bouvy C, Gruson D, Stephenne X, Douxfils J. Biological variation of thrombin generation on ST Genesia. Int J Lab Hematol 2024; 46:564-567. [PMID: 38253351 DOI: 10.1111/ijlh.14232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Affiliation(s)
- M A van Dievoet
- Hematology Department of Laboratory Medicine, Saint-Luc University Hospital, Brussels, Belgium
| | - L Morimont
- Department of Pharmacy, Faculty of Medicine, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
- QUALIblood s.a., Namur, Belgium
| | - C Bouvy
- Department of Pharmacy, Faculty of Medicine, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
- QUALIblood s.a., Namur, Belgium
| | - D Gruson
- Biochemistry Department of Laboratory Medicine, Saint-Luc University Hospital, Brussels, Belgium
| | - X Stephenne
- Pediatric Hepatology and Gastroenterology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - J Douxfils
- Department of Pharmacy, Faculty of Medicine, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
- QUALIblood s.a., Namur, Belgium
- Department of Biological Hematology, Centre Hospitalier Universitaire Clermont-Ferrand, Hôpital Estaing, Clermont-Ferrand, France
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Morimont L, Didembourg M, Bouvy C, Jost M, Taziaux M, Oligschlager Y, van Rooijen M, Gaspard U, Foidart JM, Douxfils J. Low thrombin generation in postmenopausal women using estetrol. Climacteric 2024; 27:193-201. [PMID: 38241059 DOI: 10.1080/13697137.2023.2292066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/01/2023] [Indexed: 03/13/2024]
Abstract
OBJECTIVE Estetrol (E4) represents a novel estrogen of interest to relieve vasomotor symptoms. E4 activates the nuclear estrogen receptor α (ERα) but antagonizes the estradiol ERα-dependent membrane-initiated steroid signaling pathway. The distinct pharmacological properties of E4 could explain its low impact on hemostasis. This study aimed to assess the effect of E4 on coagulation in postmenopausal women, using the thrombin generation assay (TGA). METHODS Data were collected from a multicenter, randomized, placebo-controlled, dose-finding study in postmenopausal women (NCT02834312). Oral E4 (2.5 mg, n = 42; 5 mg, n = 29; 10 mg, n = 34; or 15 mg, n = 32) or placebo (n = 31) was administered daily for 12 weeks. Thrombograms and TGA parameters were extracted for each subject at baseline and after 12 weeks of treatment. RESULTS After 12 weeks of treatment, all treatment groups showed a mean thrombogram (±95% confidence interval [CI] of the mean) within the reference ranges, that is, the 2.5th-97.5th percentile of all baseline thrombograms (n = 168), as well as for TGA parameters. CONCLUSIONS The intake of E4 15 mg for 12 weeks led to significant but not clinically relevant changes compared to baseline as the mean values (±95% CI of the mean) remained within reference ranges, demonstrating a neutral profile of this estrogen on hemostasis.
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Affiliation(s)
- L Morimont
- QUALIresearch, Qualiblood s.a, Namur, Belgium
- Clinical Pharmacology and Toxicology Research Unit (CPRU), Namur Research Institute for LIfe Sciences (NARILIS), Faculty of Medicine, University of Namur, Namur, Belgium
| | - M Didembourg
- Clinical Pharmacology and Toxicology Research Unit (CPRU), Namur Research Institute for LIfe Sciences (NARILIS), Faculty of Medicine, University of Namur, Namur, Belgium
| | - C Bouvy
- QUALIresearch, Qualiblood s.a, Namur, Belgium
| | - M Jost
- Estetra SRL, An affiliate Company of Mithra Pharmaceuticals, Liège, Belgium
| | - M Taziaux
- Estetra SRL, An affiliate Company of Mithra Pharmaceuticals, Liège, Belgium
| | - Y Oligschlager
- Estetra SRL, An affiliate Company of Mithra Pharmaceuticals, Liège, Belgium
| | - M van Rooijen
- Estetra SRL, An affiliate Company of Mithra Pharmaceuticals, Liège, Belgium
| | - U Gaspard
- Department of Obstetrics and Gynecology, University of Liège, Liège, Belgium
| | - J-M Foidart
- Estetra SRL, An affiliate Company of Mithra Pharmaceuticals, Liège, Belgium
- Clinical Sciences Department, Faculty of Medicine, University of Liège, Liège, Belgium
| | - J Douxfils
- QUALIresearch, Qualiblood s.a, Namur, Belgium
- Clinical Pharmacology and Toxicology Research Unit (CPRU), Namur Research Institute for LIfe Sciences (NARILIS), Faculty of Medicine, University of Namur, Namur, Belgium
- Department of Biological Hematology, Centre Hospitalier Universitaire Clermont-Ferrand, Hôpital Estaing, Clermont-Ferrand, France
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Douxfils J, Gaspard U, Taziaux M, Jost M, Bouvy C, Lobo RA, Utian WH, Foidart JM. Impact of estetrol (E4) on hemostasis, metabolism and bone turnover in postmenopausal women. Climacteric 2023; 26:55-63. [PMID: 36399023 DOI: 10.1080/13697137.2022.2139599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study aimed to determine the effects of estetrol (E4) on hemostasis, lipids, carbohydrate metabolism and bone turnover in postmenopausal women. METHODS This study was a multicenter, randomized, double-blind placebo-controlled phase 2 trial. Participants (n = 180, age 43-64 years) received E4 2.5 mg, 5 mg, 10 mg and 15 mg or placebo once daily for 12 weeks. Changes from baseline at week 12 were evaluated versus placebo for hemostasis parameters, sex hormone binding globulin (SHBG), lipids, carbohydrate metabolism and bone markers. RESULTS Changes for hemostasis parameters were minimal with a small increase only in the normalized activated protein C sensitivity ratio in the E4 15 mg group versus placebo. SHBG increased in the E4 5 mg, 10 mg and 15 mg groups versus placebo. High-density lipoprotein cholesterol increased in all E4 groups; changes were not consistent for other lipids. Significant decreases versus placebo were seen for insulin resistance (E4 10 mg group), hemoglobin A1c (E4 15 mg group) and type 1 collagen C-terminal telopeptide (E4 10 mg and 15 mg groups). Small decreases in osteocalcin in the E4 5 mg, 10 mg and 15 mg groups were significant versus the increase observed in placebo. CONCLUSION E4 had limited impact on hemostasis and potentially beneficial effects on lipids, carbohydrate metabolism and bone turnover.
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Affiliation(s)
- J Douxfils
- Department of Pharmacy, Namur Thrombosis and Hemostasis Center, University of Namur, Namur, Belgium.,QUALIblood s.a, Namur, Belgium
| | - U Gaspard
- Department of Obstetrics and Gynecology, University of Liège, Liège, Belgium
| | - M Taziaux
- Estetra SRL, an affiliate company of Mithra Pharmaceuticals, Liège, Belgium
| | - M Jost
- Estetra SRL, an affiliate company of Mithra Pharmaceuticals, Liège, Belgium
| | - C Bouvy
- QUALIblood s.a, Namur, Belgium
| | - R A Lobo
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, NY, USA
| | - W H Utian
- Case Western Reserve Medical School, Cleveland, OH, USA
| | - J-M Foidart
- Department of Obstetrics and Gynecology, University of Liège, Liège, Belgium.,Estetra SRL, an affiliate company of Mithra Pharmaceuticals, Liège, Belgium
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Wauthier L, Favresse J, Hardy M, Douxfils J, Le Gal G, Roy P, van Es N, Ay C, ten Cate H, Lecompte T, Lippi G, Mullier F. D-dimer testing: A narrative review. Adv Clin Chem 2023. [DOI: 10.1016/bs.acc.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Dechamps MDM, De Poortere J, Laterre PF, Octave M, Ginion A, Robaux V, Bodart J, Gruson D, Van Dievoet M, Douxfils J, Derive M, Campion A, Martin M, Horman S, Beauloye C. Cytokine storm induced coagulopathy in septic shock and critical Covid-19: head-to-head comparison. Eur Heart J 2021. [PMCID: PMC8767619 DOI: 10.1093/eurheartj/ehab724.3377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Septic shock generates an important inflammatory reaction, endothelial activation and a procoagulant state leading to microvascular thrombosis and subsequent organ impairment [1]. Similarly, a severe inflammatory reaction and a coagulopathy with pulmonary micro-thrombosis eventually leading to acute lung injury, is a typical feature of critical form of Coronavirus disease 2019 (Covid-19) [2]. Our aim was to compare coagulation, platelet activation and platelets-neutrophils interplay between control, septic shock and critical Covid-19 patients. Methods/Materials A total of 118 patients were included in our prospective, monocentric, observational study between February 2019 and June 2020. Septic shock (n=48) and Covid-19 (n=22) patients were consecutively included at admission in our ICU department. Control patients (n=48) with matched gender and co-morbidities were recruited at central lab consultation. Results Septic shock patients had worse severity scores due to multiple organ failure (assessed by APACHE II and SOFA score) whereas Covid-19 patients had more severe respiratory failure and a longer ICU length-of-stay (Table 1). At the time of inclusion, CRP and lymphocyte count were comparable between septic shock and Covid-19 patients. White cell count ad neutrophil count was higher for septic shock patients. Analysis of coagulation showed a prolonged INR, TT and aPTT in septic shock although only INR was prolonged in Covid-19. Thrombin antithrombin complex (TATc) formation was similar in both pathologies, whereas consumption of antithrombin III (ATIII) and D-dimers formation was more pronounced in septic shock. Platelet count was lower in septic shock and platelet activation, assessed via plasmatic levels of soluble P-selectin (sCD62P) and Trem-like transcript 1 (sTLT-1), was more important in septic shock. Neutrophil activation and NETosis, evaluated by levels of circulating myeloperoxidase (MPO) and citrullinated histone 3 (H3-Cit), was similarly increased in both groups (Figure 1). Conclusions This study confirmed an activation of coagulation cascade, platelet activation and NETosis in both septic shock and critical Covid-19, compared with control patients. Importantly, the extent of these changes was similar or less pronounced in critical COVID-19 compared with septic shock. Funding Acknowledgement Type of funding sources: Foundation. Main funding source(s): Fondation Saint Luc
Figure 1 ![]()
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Affiliation(s)
| | | | | | - M Octave
- Universite Catholique de Louvain, Brussels, Belgium
| | - A Ginion
- Universite Catholique de Louvain, Brussels, Belgium
| | - V Robaux
- Universite Catholique de Louvain, Brussels, Belgium
| | - J Bodart
- Universite Catholique de Louvain, Brussels, Belgium
| | - D Gruson
- Cliniques Saint-Luc UCL, Brussels, Belgium
| | | | - J Douxfils
- Namur Research Institute for Life Sciences (Narilis), Pharmacy, Namur, Belgium
| | - M Derive
- Inotrem SA, Vandoeuvre-les-Nancy, France
| | - A Campion
- Universite Catholique de Louvain, Brussels, Belgium
| | - M Martin
- Universite Catholique de Louvain, Brussels, Belgium
| | - S Horman
- Universite Catholique de Louvain, Brussels, Belgium
| | - C Beauloye
- Cliniques Saint-Luc UCL, Brussels, Belgium
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De Poortere J, Dechamps M, Laterre P, Octave M, Ginion A, Robaux V, Pirotton L, Bodart J, Gerard L, Gruson D, Van Dievoet M, Douxfils J, Derive M, Gatto L, Martin M, Bouzin C, Castanares-Zapatero D, Bertrand L, Horman S, Beauloye C. Head-to-head comparison of cytokines storm-coagulopathy in septic shock and COVID-19. Archives of Cardiovascular Diseases Supplements 2021. [PMCID: PMC8127522 DOI: 10.1016/j.acvdsp.2021.04.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hardy M, Lecompte T, Douxfils J, Lessire S, Dogné JM, Chatelain B, Testa S, Gouin-Thibault I, Gruel Y, Medcalf RL, ten Cate H, Lippi G, Mullier F. Management of the thrombotic risk associated with COVID-19: guidance for the hemostasis laboratory. Thromb J 2020; 18:17. [PMID: 32922211 PMCID: PMC7474970 DOI: 10.1186/s12959-020-00230-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is associated with extreme inflammatory response, disordered hemostasis and high thrombotic risk. A high incidence of thromboembolic events has been reported despite thromboprophylaxis, raising the question of a more effective anticoagulation. First-line hemostasis tests such as activated partial thromboplastin time, prothrombin time, fibrinogen and D-dimers are proposed for assessing thrombotic risk and monitoring hemostasis, but are vulnerable to many drawbacks affecting their reliability and clinical relevance. Specialized hemostasis-related tests (soluble fibrin complexes, tests assessing fibrinolytic capacity, viscoelastic tests, thrombin generation) may have an interest to assess the thrombotic risk associated with COVID-19. Another challenge for the hemostasis laboratory is the monitoring of heparin treatment, especially unfractionated heparin in the setting of an extreme inflammatory response. This review aimed at evaluating the role of hemostasis tests in the management of COVID-19 and discussing their main limitations.
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Affiliation(s)
- M. Hardy
- Université catholique de Louvain, CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Hematology Laboratory, Yvoir, Belgium
- Université catholique de Louvain, CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Anesthesiology Department, Yvoir, Belgium
| | - T. Lecompte
- Département de Médecine, Hôpitaux Universitaires de Genève, service d’angiologie et d’hémostase et Faculté de Médecine Geneva Platelet Group (GpG), Université de Genève, Geneva, Suisse Switzerland
| | - J. Douxfils
- Pharmacy Department, University of Namur, Namur Thrombosis and Hemostasis Center (NTHC), Namur, Belgium
- Qualiblood s.a, Namur, Belgium
| | - S. Lessire
- Université catholique de Louvain, CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Anesthesiology Department, Yvoir, Belgium
| | - J. M. Dogné
- Pharmacy Department, University of Namur, Namur Thrombosis and Hemostasis Center (NTHC), Namur, Belgium
| | - B. Chatelain
- Université catholique de Louvain, CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Hematology Laboratory, Yvoir, Belgium
| | - S. Testa
- Haemostasis and Thrombosis Center, Cremona Hospital, Cremona, Italy
| | - I. Gouin-Thibault
- Département d’Hématologie Biologique, INSERM, CIC 1414 (Centre d’Investigation Clinique de Rennes), Université de Rennes, CHU de Rennes, Rennes, France
| | - Y. Gruel
- Laboratoire d’Hématologie-Hémostase, CHRU de Tours, Hôpital Trousseau, Tours, France
| | - R. L. Medcalf
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria Australia
| | - H. ten Cate
- Department of Internal Medicine, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands
| | - G. Lippi
- Section of Clinical Biochemistry, University of Verona, Verona, Italy
| | - F. Mullier
- Université catholique de Louvain, CHU UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Hematology Laboratory, Yvoir, Belgium
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Evrard J, Morimont L, Benyahia Z, Laloy J, Siriez R, Dogné J, Douxfils J. Evaluation of the analytical performances of FibWave, a new sensitive tool assessing the fibrin clot formation, to measure the effects of anticoagulants. Thromb Res 2020; 191:78-81. [DOI: 10.1016/j.thromres.2020.04.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/08/2020] [Accepted: 04/22/2020] [Indexed: 10/24/2022]
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Haguet H, Mullier F, Graux C, Dogné JM, Douxfils J. PS1188 AN UPDATED META-ANALYSIS OF THE RISKS OF ARTERIAL AND VENOUS OCCLUSIVE EVENTS WITH NEW GENERATION BCR-ABL TKIS IN PATIENTS WITH CHRONIC MYELOID LEUKAEMIA. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000563036.90759.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Favresse J, Hardy M, van Dievoet MA, Sennesael AL, Douxfils J, Samama CM, Vornicu O, Dincq AS, Lessire S, Mullier F. Andexanet alfa for the reversal of factor Xa inhibitors. Expert Opin Biol Ther 2019; 19:387-397. [DOI: 10.1080/14712598.2019.1599355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- J Favresse
- Namur Thrombosis and Haemostasis Center, Hematology Laboratory, Université catholique de Louvain, CHU UCL Namur, Yvoir, Belgium
| | - M Hardy
- Department of Anesthesiology, CHU UCL Namur, Namur Thrombosis and Haemostasis Center, Université Catholique de Louvain, Yvoir, Belgium
| | - MA van Dievoet
- St-Luc University Hospital and Catholic University of Louvain, Department of Laboratory Medicine, Hematology Laboratory, Brussels, Belgium
| | - AL Sennesael
- Department of Pharmacy, Namur Thrombosis and Haemostasis Center, Namur Research Institute for Life Sciences, Namur, Belgium
| | - J Douxfils
- Department of Pharmacy, Namur Thrombosis and Haemostasis Center, Namur Research Institute for Life Sciences, Namur, Belgium
- Qualiblood s.a., Namur, Belgium
| | - CM Samama
- Department of Anaesthesiology and Intensive Care Medicine, Cochin University Hospital, Paris Descartes University, Paris, France
| | - O Vornicu
- Department of Anesthesiology, CHU UCL Namur, Namur Thrombosis and Haemostasis Center, Université Catholique de Louvain, Yvoir, Belgium
| | - AS Dincq
- Department of Anesthesiology, CHU UCL Namur, Namur Thrombosis and Haemostasis Center, Université Catholique de Louvain, Yvoir, Belgium
| | - S Lessire
- Department of Anesthesiology, CHU UCL Namur, Namur Thrombosis and Haemostasis Center, Université Catholique de Louvain, Yvoir, Belgium
| | - F Mullier
- Namur Thrombosis and Haemostasis Center, Hematology Laboratory, Université catholique de Louvain, CHU UCL Namur, Yvoir, Belgium
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Dincq AS, Lessire S, Pirard G, Siriez R, Guldenpfennig M, Baudar J, Favresse J, Douxfils J, Mullier F. Reduction of the turn-around time for the measurement of rivaroxaban and apixaban: Assessment of the performance of a rapid centrifugation method. Int J Lab Hematol 2018; 40:e105-e108. [PMID: 29920946 DOI: 10.1111/ijlh.12870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- A-S Dincq
- Department of Anestesiology, CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Université catholique de Louvain, Yvoir, Belgium
| | - S Lessire
- Department of Anestesiology, CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Université catholique de Louvain, Yvoir, Belgium
| | - G Pirard
- Department of Anestesiology, CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Université catholique de Louvain, Yvoir, Belgium
| | - R Siriez
- Department of Pharmacy, Namur Research Institute for LIfe Sciences, Namur Thrombosis and Hemostasis Center, University of Namur, Namur, Belgium
| | - M Guldenpfennig
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Hematology Laboratory, Université catholique de Louvain, Yvoir, Belgium
| | - J Baudar
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Hematology Laboratory, Université catholique de Louvain, Yvoir, Belgium
| | - J Favresse
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Hematology Laboratory, Université catholique de Louvain, Yvoir, Belgium
| | - J Douxfils
- Department of Pharmacy, Namur Research Institute for LIfe Sciences, Namur Thrombosis and Hemostasis Center, University of Namur, Namur, Belgium.,QUALIblood sa, Namur, Belgium
| | - F Mullier
- CHU UCL Namur, Namur Thrombosis and Hemostasis Center, Hematology Laboratory, Université catholique de Louvain, Yvoir, Belgium
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12
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Douxfils J, Ageno W, Samama CM, Lessire S, Ten Cate H, Verhamme P, Dogné JM, Mullier F. Laboratory testing in patients treated with direct oral anticoagulants: a practical guide for clinicians. J Thromb Haemost 2018; 16:209-219. [PMID: 29193737 DOI: 10.1111/jth.13912] [Citation(s) in RCA: 219] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Indexed: 11/30/2022]
Abstract
Click to hear Dr Baglin's perspective on the role of the laboratory in treatment with new oral anticoagulants SUMMARY: One of the key benefits of the direct oral anticoagulants (DOACs) is that they do not require routine laboratory monitoring. Nevertheless, assessment of DOAC exposure and anticoagulant effects may become useful in various clinical scenarios. The five approved DOACs (apixaban, betrixaban, dabigatran etexilate, edoxaban and rivaroxaban) have different characteristics impacting assay selection and the interpretation of results. This article provides an updated overview on (i) which test to use (and their advantages and limitations), (ii) when to assay DOAC levels, (iii) how to interpret the results relating to bleeding risk, emergency situations and perioperative management, and (iv) what is the impact of DOACs on routine and specialized coagulation assays. Assays for anti-Xa or anti-IIa activity are the preferred methods when quantitative information is useful, although the situations in which to test for DOAC levels are still debated. Different reagent sensitivities and variabilities in laboratory calibrations impact assay results. International calibration standards for all specific tests for each DOAC are needed to reduce the inter-laboratory variability and allow inter-study comparisons. The impact of the DOACs on hemostasis testing may cause false-positive or false-negative results; however, these can be minimized by using specific assays and collecting blood samples at trough concentrations. Finally, prospective clinical trials are needed to validate the safety and efficacy of proposed laboratory thresholds in relation to clinical decisions. We offer recommendations on the tests to use for measuring DOACs and practical guidance on laboratory testing to help patient management and avoid diagnostic errors.
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Affiliation(s)
- J Douxfils
- Department of Pharmacy, Namur Thrombosis and Hemostasis Centre (NTHC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
- Qualiblood s.a., Namur, Belgium
| | - W Ageno
- Department of Clinical and Experimental Medicine, University of Insubria, Varese, Italy
| | - C-M Samama
- Cochin University Hospital, Department of Anaesthesiology and Intensive Care, Université Paris Descartes, Paris, France
| | - S Lessire
- Department of Anaesthesiology, Namur Thrombosis and Haemostasis Centre (NTHC), Namur Research Institute for Life Sciences (NARILIS), Université catholique de Louvain, CHU UCL Namur, Yvoir, Belgium
| | - H Ten Cate
- Department of Internal Medicine, Maastricht University Medical Centre and Cardiovascular Research Institute (CARIM), Maastricht, the Netherlands
| | - P Verhamme
- Department of Cardiovascular Sciences, Vascular Medicine and Haemostasis, University of Leuven, Leuven, Belgium
| | - J-M Dogné
- Department of Pharmacy, Namur Thrombosis and Hemostasis Centre (NTHC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - F Mullier
- CHU UCL Namur, Laboratory Hematology, Namur Thrombosis and Haemostasis Centre (NTHC), Namur Research Institute for Life Sciences (NARILIS), Université catholique de Louvain, Yvoir, Belgium
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Spronk HMH, Padro T, Siland JE, Prochaska JH, Winters J, van der Wal AC, Posthuma JJ, Lowe G, d'Alessandro E, Wenzel P, Coenen DM, Reitsma PH, Ruf W, van Gorp RH, Koenen RR, Vajen T, Alshaikh NA, Wolberg AS, Macrae FL, Asquith N, Heemskerk J, Heinzmann A, Moorlag M, Mackman N, van der Meijden P, Meijers JCM, Heestermans M, Renné T, Dólleman S, Chayouâ W, Ariëns RAS, Baaten CC, Nagy M, Kuliopulos A, Posma JJ, Harrison P, Vries MJ, Crijns HJGM, Dudink EAMP, Buller HR, Henskens YMC, Själander A, Zwaveling S, Erküner O, Eikelboom JW, Gulpen A, Peeters FECM, Douxfils J, Olie RH, Baglin T, Leader A, Schotten U, Scaf B, van Beusekom HMM, Mosnier LO, van der Vorm L, Declerck P, Visser M, Dippel DWJ, Strijbis VJ, Pertiwi K, Ten Cate-Hoek AJ, Ten Cate H. Atherothrombosis and Thromboembolism: Position Paper from the Second Maastricht Consensus Conference on Thrombosis. Thromb Haemost 2018; 118:229-250. [PMID: 29378352 DOI: 10.1160/th17-07-0492] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Atherothrombosis is a leading cause of cardiovascular mortality and long-term morbidity. Platelets and coagulation proteases, interacting with circulating cells and in different vascular beds, modify several complex pathologies including atherosclerosis. In the second Maastricht Consensus Conference on Thrombosis, this theme was addressed by diverse scientists from bench to bedside. All presentations were discussed with audience members and the results of these discussions were incorporated in the final document that presents a state-of-the-art reflection of expert opinions and consensus recommendations regarding the following five topics: 1. Risk factors, biomarkers and plaque instability: In atherothrombosis research, more focus on the contribution of specific risk factors like ectopic fat needs to be considered; definitions of atherothrombosis are important distinguishing different phases of disease, including plaque (in)stability; proteomic and metabolomics data are to be added to genetic information. 2. Circulating cells including platelets and atherothrombosis: Mechanisms of leukocyte and macrophage plasticity, migration, and transformation in murine atherosclerosis need to be considered; disease mechanism-based biomarkers need to be identified; experimental systems are needed that incorporate whole-blood flow to understand how red blood cells influence thrombus formation and stability; knowledge on platelet heterogeneity and priming conditions needs to be translated toward the in vivo situation. 3. Coagulation proteases, fibrin(ogen) and thrombus formation: The role of factor (F) XI in thrombosis including the lower margins of this factor related to safe and effective antithrombotic therapy needs to be established; FXI is a key regulator in linking platelets, thrombin generation, and inflammatory mechanisms in a renin-angiotensin dependent manner; however, the impact on thrombin-dependent PAR signaling needs further study; the fundamental mechanisms in FXIII biology and biochemistry and its impact on thrombus biophysical characteristics need to be explored; the interactions of red cells and fibrin formation and its consequences for thrombus formation and lysis need to be addressed. Platelet-fibrin interactions are pivotal determinants of clot formation and stability with potential therapeutic consequences. 4. Preventive and acute treatment of atherothrombosis and arterial embolism; novel ways and tailoring? The role of protease-activated receptor (PAR)-4 vis à vis PAR-1 as target for antithrombotic therapy merits study; ongoing trials on platelet function test-based antiplatelet therapy adjustment support development of practically feasible tests; risk scores for patients with atrial fibrillation need refinement, taking new biomarkers including coagulation into account; risk scores that consider organ system differences in bleeding may have added value; all forms of oral anticoagulant treatment require better organization, including education and emergency access; laboratory testing still needs rapidly available sensitive tests with short turnaround time. 5. Pleiotropy of coagulation proteases, thrombus resolution and ischaemia-reperfusion: Biobanks specifically for thrombus storage and analysis are needed; further studies on novel modified activated protein C-based agents are required including its cytoprotective properties; new avenues for optimizing treatment of patients with ischaemic stroke are needed, also including novel agents that modify fibrinolytic activity (aimed at plasminogen activator inhibitor-1 and thrombin activatable fibrinolysis inhibitor.
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Affiliation(s)
- H M H Spronk
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - T Padro
- Cardiovascular Research Center (ICCC), Hospital Sant Pau, Barcelona, Spain
| | - J E Siland
- Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - J H Prochaska
- Center for Cardiology/Center for Thrombosis and Hemostasis/DZHK, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - J Winters
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - A C van der Wal
- Department of Pathology, Academic Medical Center (AMC), Amsterdam, The Netherlands
| | - J J Posthuma
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - G Lowe
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
| | - E d'Alessandro
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands.,Department of Pathology, Academic Medical Center (AMC), Amsterdam, The Netherlands
| | - P Wenzel
- Department of Cardiology, Universitätsmedizin Mainz, Mainz, Germany
| | - D M Coenen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - P H Reitsma
- Einthoven Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - W Ruf
- Center for Cardiology/Center for Thrombosis and Hemostasis/DZHK, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - R H van Gorp
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - R R Koenen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - T Vajen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - N A Alshaikh
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - A S Wolberg
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina, United States
| | - F L Macrae
- Thrombosis and Tissue Repair Group, Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
| | - N Asquith
- Thrombosis and Tissue Repair Group, Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
| | - J Heemskerk
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - A Heinzmann
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - M Moorlag
- Synapse, Maastricht, The Netherlands
| | - N Mackman
- Department of Medicine, UNC McAllister Heart Institute, University of North Carolina, Chapel Hill, North Carolina, United States
| | - P van der Meijden
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - J C M Meijers
- Department of Plasma Proteins, Sanquin, Amsterdam, The Netherlands
| | - M Heestermans
- Einthoven Laboratory, Leiden University Medical Center, Leiden, The Netherlands
| | - T Renné
- Department of Molecular Medicine and Surgery, Karolinska Institutet and University Hospital, Stockholm, Sweden.,Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - S Dólleman
- Department of Nephrology, Leiden University Medical Centre, Leiden, The Netherlands
| | - W Chayouâ
- Synapse, Maastricht, The Netherlands
| | - R A S Ariëns
- Thrombosis and Tissue Repair Group, Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
| | - C C Baaten
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - M Nagy
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - A Kuliopulos
- Tufts University School of Graduate Biomedical Sciences, Biochemistry/Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts
| | - J J Posma
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - P Harrison
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - M J Vries
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - H J G M Crijns
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - E A M P Dudink
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - H R Buller
- Department of Vascular Medicine, Academic Medical Center (AMC), Amsterdam, The Netherlands
| | - Y M C Henskens
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - A Själander
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - S Zwaveling
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands.,Synapse, Maastricht, The Netherlands
| | - O Erküner
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - J W Eikelboom
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - A Gulpen
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - F E C M Peeters
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - J Douxfils
- Department of Pharmacy, Thrombosis and Hemostasis Center, Faculty of Medicine, Namur University, Namur, Belgium
| | - R H Olie
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - T Baglin
- Department of Haematology, Addenbrookes Hospital Cambridge, Cambridge, United Kingdom
| | - A Leader
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands.,Davidoff Cancer Center, Rabin Medical Center, Institute of Hematology, Sackler Faculty of Medicine, Tel Aviv University, Petah Tikva, Tel Aviv, Israel
| | - U Schotten
- Center for Cardiology/Center for Thrombosis and Hemostasis/DZHK, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - B Scaf
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands.,Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - H M M van Beusekom
- Department of Experimental Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - L O Mosnier
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, United States
| | | | - P Declerck
- Department of Pharmaceutical and Pharmacological Sciences, University of Leuven, Leuven, Belgium
| | | | - D W J Dippel
- Department of Neurology, Erasmus MC, Rotterdam, The Netherlands
| | | | - K Pertiwi
- Department of Cardiovascular Pathology, University of Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
| | - A J Ten Cate-Hoek
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
| | - H Ten Cate
- Laboratory for Clinical Thrombosis and Haemostasis, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, The Netherlands
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14
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Van Blerk M, Bailleul E, Chatelain B, Demulder A, Devreese K, Douxfils J, Jacquemin M, Jochmans K, Mullier F, Wijns W, China B, Vernelen K, Soumali MR. Influence of apixaban on commonly used coagulation assays: results from the Belgian national External Quality Assessment Scheme. Int J Lab Hematol 2017; 39:402-408. [DOI: 10.1111/ijlh.12640] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/16/2017] [Indexed: 12/16/2022]
Affiliation(s)
- M. Van Blerk
- Department of Quality of Medical Laboratories; Scientific Institute of Public Health; Brussels Belgium
| | | | | | | | | | | | | | | | | | - W. Wijns
- EQA Advisory Board; Brussels Belgium
| | - B. China
- Department of Quality of Medical Laboratories; Scientific Institute of Public Health; Brussels Belgium
| | - K. Vernelen
- Department of Quality of Medical Laboratories; Scientific Institute of Public Health; Brussels Belgium
| | - M. R. Soumali
- Department of Quality of Medical Laboratories; Scientific Institute of Public Health; Brussels Belgium
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15
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Hack K, Renzi F, Hess E, Lauber F, Douxfils J, Dogné JM, Cornelis GR. Inactivation of human coagulation factor X by a protease of the pathogen Capnocytophaga canimorsus. J Thromb Haemost 2017; 15:487-499. [PMID: 28029716 DOI: 10.1111/jth.13605] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 01/13/2023]
Abstract
Essentials Capnocytophaga canimorsus causes severe dog bite related blood stream infections. We investigated if C. canimorsus contributes to bleeding abnormalities during infection. The C. canimorsus protease CcDPP7 causes factor X dysfunction by N-terminal cleavage. CcDPP7 inhibits coagulation in vivo, which could promote immune evasion and trigger hemorrhage. SUMMARY Background Capnocytophaga canimorsus is a Gram-negative bacterium that is present in the oral flora of dogs and causes fulminant sepsis in humans who have been bitten, licked, or scratched. In patients, bleeding abnormalities, such as petechiae, purpura fulminans, or disseminated intravascular coagulation (DIC), occur frequently. Objective To investigate whether C. canimorsus could actively contribute to these bleeding abnormalities. Methods Calibrated automated thrombogram and clotting time assays were performed to assess the anticoagulant activity of C. canimorsus 5 (Cc5), a strain isolated from a fatal human infection. Clotting factor activities were measured with factor-deficient plasma. Factor X cleavage was monitored with the radiolabeled zymogen and western blotting. Mutagenesis of Cc5 genes encoding putative serine proteases was performed to identify the protease that cleaves FX. Protein purification was performed with affinity chromatography. Edman degradation allowed the detection of N-terminal cleavage of FX. Tail bleeding times were measured in mice. Results We found that Cc5 inhibited thrombin generation and increased the prothrombin time and the activated partial thromboplastin time of human plasma via FX cleavage. A mutant that was unable to synthesize a type 7 dipeptidyl peptidase (DPP7) of the S46 serine protease family failed to proteolyse FX. The purified protease (CcDPP7) cleaved FX heavy and light chains from the N-terminus, and was active in vivo after intravenous injection. Conclusions This is, to our knowledge, the first study demonstrating a detailed mechanism for FX inactivation by a bacterial protease, and it is the first functional study associating DPP7 proteases with a potentially pathogenic outcome.
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Affiliation(s)
- K Hack
- Department of Biology, University of Namur, Namur, Belgium
| | - F Renzi
- Department of Biology, University of Namur, Namur, Belgium
| | - E Hess
- Department of Biology, University of Namur, Namur, Belgium
| | - F Lauber
- Department of Biology, University of Namur, Namur, Belgium
| | - J Douxfils
- Department of Pharmacy, University of Namur, Namur, Belgium
| | - J M Dogné
- Department of Pharmacy, University of Namur, Namur, Belgium
| | - G R Cornelis
- Department of Biology, University of Namur, Namur, Belgium
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16
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Geay F, Mellery J, Tinti E, Douxfils J, Larondelle Y, Mandiki SNM, Kestemont P. Effects of dietary linseed oil on innate immune system of Eurasian perch and disease resistance after exposure to Aeromonas salmonicida achromogen. Fish Shellfish Immunol 2015; 47:782-796. [PMID: 26497094 DOI: 10.1016/j.fsi.2015.10.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/12/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
This study was designated to investigate the effects of dietary fish oil (FO diet) replacement by linseed oil (LO diet) on regulation of immune response and disease resistance in Eurasian perch (Perca fluviatilis). A control diet containing fish oil (FO = cod liver oil) and characterized by high levels of n-3 high LC-PUFA (6% EPA, 7.5% of total fatty acids (FAs)) was compared to linseed oil diet (LO diet) composed of low LC-PUFA contents (1% EPA, 2.3% DHA of total FAs) but high C18 fatty acids levels. The experiment was conducted in quadruplicate groups of 80 fish each. After 10 weeks of feeding, the innate immune status was evaluated in various organs (liver, spleen, and head-kidney) (feeding condition). Two days later, a bacterial challenge was performed on fish from 2 rearing conditions: fish infected with Aeromonas salmonicida (bacteria condition) and fish injected with sterile medium but maintained in the same flow system that fish challenged with bacteria (sentinel condition). Three days after injection of bacteria, a significant decrease of lymphocyte, thrombocyte and basophil populations was observed while neutrophils were not affected. In addition, plasma lysozyme activity and reactive oxygen species production in kidney significantly increased in fish challenged with A. salmonicida while the plasma alternative complement pathway activity was not affected. Increase of plasma lysozyme activity as well as reactive oxygen species production in spleen and kidney of sentinel fish suggest that these immune defenses can also be activated, but at lower bacteria concentration than infected fish. No differences in leucocyte populations, plasma lysozyme and alternative complement pathway activities were observed between dietary treatments. Similarly, expression of genes related to eicosanoid synthesis in liver were not affected by the dietary oil source but were strongly stimulated in fish challenged with A. salmonicida. These findings demonstrated that the use of linseed oil does not deplete the innate immune system of Eurasian perch juveniles.
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Affiliation(s)
- F Geay
- Research Unit of Environmental and Evolutionary Biology (URBE), University of Namur (UNamur), Rue de Bruxelles, 61, 5000 Namur, Belgium
| | - J Mellery
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud, 2/L7.05.08, 1348 Louvain-la-Neuve, Belgium
| | - E Tinti
- Unité de Chimie Physique Théorique et Structurale, Université de Namur (UNamur), Rue de Bruxelles 61, 5000 Namur, Belgium
| | - J Douxfils
- Research Unit of Environmental and Evolutionary Biology (URBE), University of Namur (UNamur), Rue de Bruxelles, 61, 5000 Namur, Belgium
| | - Y Larondelle
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud, 2/L7.05.08, 1348 Louvain-la-Neuve, Belgium
| | - S N M Mandiki
- Research Unit of Environmental and Evolutionary Biology (URBE), University of Namur (UNamur), Rue de Bruxelles, 61, 5000 Namur, Belgium
| | - P Kestemont
- Research Unit of Environmental and Evolutionary Biology (URBE), University of Namur (UNamur), Rue de Bruxelles, 61, 5000 Namur, Belgium.
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17
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Douxfils J, Chatelain B, Dogné JM, Mullier F. Real-world variability in dabigatran levels in patients with atrial fibrillation: comment. J Thromb Haemost 2015; 13:1166-8. [PMID: 25714617 DOI: 10.1111/jth.12880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Indexed: 11/28/2022]
Affiliation(s)
- J Douxfils
- Department of Pharmacy, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for LIfe Sciences (NARILIS), University of Namur, Namur, Belgium
| | - B Chatelain
- Hematology Laboratory, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for LIfe Sciences (NARILIS), CHU DinantGodinne UcL Namur, Université Catholique de Louvain, Yvoir, Belgium
| | - J-M Dogné
- Department of Pharmacy, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for LIfe Sciences (NARILIS), University of Namur, Namur, Belgium
| | - F Mullier
- Hematology Laboratory, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for LIfe Sciences (NARILIS), CHU DinantGodinne UcL Namur, Université Catholique de Louvain, Yvoir, Belgium
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18
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Larock AS, Douxfils J, Mullier F, Chatelain C, Dogné JM, Spinewine A. INT-001 Appropriateness of prescribing direct oral anticoagulants: a prospective study. Eur J Hosp Pharm 2015. [DOI: 10.1136/ejhpharm-2015-000639.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Minet V, Baudar J, Bailly N, Douxfils J, Laloy J, Lessire S, Gourdin M, Devalet B, Chatelain B, Dogné J, Mullier F. Rapid exclusion of the diagnosis of immune HIT by AcuStar HIT and heparin-induced multiple electrode aggregometry. Thromb Res 2014; 133:1074-8. [DOI: 10.1016/j.thromres.2014.01.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 01/13/2014] [Accepted: 01/13/2014] [Indexed: 02/07/2023]
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20
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Douxfils J, Lambert S, Mathieu C, Milla S, Mandiki SNM, Henrotte E, Wang N, Dieu M, Raes M, Rougeot C, Kestemont P. Influence of domestication process on immune response to repeated emersion stressors in Eurasian perch (Perca fluviatilis, L.). Comp Biochem Physiol A Mol Integr Physiol 2014; 173C:52-60. [PMID: 24674818 DOI: 10.1016/j.cbpa.2014.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 01/07/2014] [Revised: 03/12/2014] [Accepted: 03/19/2014] [Indexed: 11/16/2022]
Abstract
Domestication might be a possible way to reduce the physiological response to long-term stressors and deleterious effects on immunity. The present study aimed to evaluate the chronic immune response induced by repeated emersions and the possible impact of domestication by comparing farmed Eurasian perch with short (F1) and long (F4) captive-life history. In the first experiment, fish were exposed to a single emersion and physiological stress response was measured in the short term to characterize fish sensitivity to the tested stressor. Serum cortisol and glucose elevated within 6h post-stress and splenosomatic index (SSI) decreased within 48h, indicating that the species was affected by emersion stressor. In the second experiment, F1 and F4 generations were submitted to repeated water emersions (3 times/week during 44days). On day 9, 18 and 44, samplings were performed 48h post-stressor to highlight any sustained disruption of immune system. Serum cortisol, glucose, SSI and lysozyme activity were evaluated and serum proteome was analyzed using 2D-DIGE. Any of the tested variables were affected by repeated emersions and proteomic analysis only revealed that alpha-2 macroglobulins (a2Ms) were up-regulated in the serum of stressed individuals. Domestication also resulted in the up-regulation of five a2M isoforms and down-regulation of complement C3 and Ig light chain proteins, independently of any stressor exposure. In conclusion, the results suggested that repeated emersions are not severe stressors for Eurasian perch, probably explaining why domestication had no influence on fish responses. Changes associated with domestication are highly complex and certainly need further investigations.
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Affiliation(s)
- J Douxfils
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - S Lambert
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - C Mathieu
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - S Milla
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - S N M Mandiki
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - E Henrotte
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - N Wang
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - M Dieu
- University of Namur (UNamur), Research Unit in Cellular Biology (URBC)-NARILIS, Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - M Raes
- University of Namur (UNamur), Research Unit in Cellular Biology (URBC)-NARILIS, Rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - C Rougeot
- University of Liège, Aquaculture Research and Education Centre (CEFRA), Chemin de la Justice, B-5000 Tihange, Belgium
| | - P Kestemont
- University of Namur (UNamur), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium.
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21
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Douxfils J, Michel S, Beauloye C, Goethals M, Hainaut P, Heidbuchel H, Hermans C, Ickx B, Jochmans K, Mottes S, Mullier F, Peeters A, Scavée C, Sinnaeve P, Sprynger M, Thijs V, Vandenbroeck C, Vandermeulen E, Verhamme P, Dogné JM. [Rivaroxaban: Xarelto--recommendations for pharmacists]. J Pharm Belg 2013:28-36. [PMID: 23638610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Rivaroxaban is one of the new oral anticoagulants (NOACs). It has many potential advantages in comparison with Vitamin K Antagonists (VKA). It has a predictable anticoagulant effect and does not theoretically require biological monitoring. It is also characterized by less food and drug interactions. However, due to major risks associated with over- and under-dosage, its optimal use in patients should be carefully followed by health care professionals. The aim of this article is to provide recommendations for pharmacists on the practical use of Xarelto in its different approved indications. This document is adapted from the practical user guide of rivaroxaban which was developed by an independent group of Belgian experts in the field of thrombosis and haemostasis.
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Affiliation(s)
- J Douxfils
- Département de pharmacie, Université de Namur, Namur
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Mandiki SNM, Mathieu C, Chaffa F, Rakotomalla TM, Douxfils J, Kestemont P. Digestive and immune responses to probiotics or prebiotics in percid larvae. Commun Agric Appl Biol Sci 2013; 78:262-264. [PMID: 25141685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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23
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Sternotte A, Douxfils J, Chatelain B, Chatelain C, Mullier F, Dogné JM, Spinewine A. [Clinical studies, the interests and limits of using dabigatran in atrial fibrillation]. J Pharm Belg 2012:8-17. [PMID: 22536678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Atrial fibrillation (AF) is the most frequent cardiac arrhythmia, especially in older people. This condition is associated with an increased risk of stroke, and long-term anticoagulation treatment is therefore needed. Vitamin K antagonists are effective in reducing the risk of stroke but optimal use of these drugs remains difficult. The development of new oral anticoagulant drugs is therefore highly relevant. Dabigatran is an oral direct thrombin inhibitor. Its prodrug, dabigatran etexilate, is marketed under the name of Pradaxa and was initially approved for the prevention of thromboembolic events in major orthopedic surgery. It has been recently approved for stroke prevention in patients with AF. The purpose of this paper is to review--in light of current knowledge--the interests and limits of using dabigatran etexilate in AF. Briefly, dabigatran etexilate is not inferior to warfarin in AF. However many questions remain unanswered, including questions related to the concomitant use of dabigatran etexilate and acetylsalicylic acid, the possible increased risk of myocardial infarction and the need for drug monitoring.
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Affiliation(s)
- A Sternotte
- Université Catholique de Louvain, Faculty of Pharmacy and Biomedical Sciences, Belgium
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Prunet P, Øverli Ø, Douxfils J, Bernardini G, Kestemont P, Baron D. Fish welfare and genomics. Fish Physiol Biochem 2012; 38:43-60. [PMID: 21671026 DOI: 10.1007/s10695-011-9522-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 05/31/2011] [Indexed: 05/30/2023]
Abstract
There is a considerable public and scientific debate concerning welfare of fish in aquaculture. In this review, we will consider fish welfare as an integration of physiological, behavioral, and cognitive/emotional responses, all of which are essentially adaptative responses to stressful situations. An overview of fish welfare in this context suggests that understanding will rely on knowledge of all components of allostatic responses to stress and environmental perturbations. The development of genomic technologies provides new approaches to this task, exemplified by how genome-wide analysis of genetic structures and corresponding expression patterns can lead to the discovery of new aspects of adaptative responses. We will illustrate how the genomic approach may give rise to new biomarkers for fish welfare and also increase our understanding of the interaction between physiological, behavioral, and emotional responses. In a first part, we present data on expression of candidate genes selected a priori. This is a common avenue to develop molecular biomarkers capable of diagnosing a stress condition at its earliest onset, in order to allow quick corrective intervention in an aquaculture setting. However, most of these studies address isolated physiological functions and stress responses that may not be truly indicative of animal welfare, and there is only rudimentary understanding of genes related to possible cognitive and emotional responses in fish. We also present an overview on transcriptomic analysis related to the effect of aquaculture stressors, environmental changes (temperature, salinity, hypoxia), or concerning specific behavioral patterns. These studies illustrate the potential of genomic approaches to characterize the complexity of the molecular mechanisms which underlies not only physiological but also behavioral responses in relation to fish welfare. Thirdly, we address proteomic studies on biological responses to stressors such as salinity change and hypoxia. We will also consider proteomic studies developed in mammals in relation to anxiety and depressive status which may lead to new potential candidates in fish. Finally, in the conclusion, we will suggest new developments to facilitate an integrated view of fish welfare. This includes use of laser microdissection in the transcriptomic/proteomic studies, development of meta-analysis methods for extracting information from genomic data sets, and implementation of technological advances for high-throughput proteomic studies. Development of these new approaches should be as productive for our understanding of the biological processes underlying fish welfare as it has been for the progress of pathophysiological research.
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Affiliation(s)
- P Prunet
- UR1037 SCRIBE, IFR140, INRA, Campus de Beaulieu, Rennes, France.
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25
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Douxfils J, Mathieu C, Mandiki SNM, Milla S, Henrotte E, Wang N, Vandecan M, Dieu M, Dauchot N, Pigneur LM, Li X, Rougeot C, Mélard C, Silvestre F, Van Doninck K, Raes M, Kestemont P. Physiological and proteomic evidences that domestication process differentially modulates the immune status of juvenile Eurasian perch (Perca fluviatilis) under chronic confinement stress. Fish Shellfish Immunol 2011; 31:1113-1121. [PMID: 22008286 DOI: 10.1016/j.fsi.2011.10.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 09/13/2011] [Accepted: 10/03/2011] [Indexed: 05/31/2023]
Abstract
The current study aimed to evaluate the influence of domestication process on the stress response and subsequent immune modulation in Eurasian perch juveniles (Perca fluviatilis) submitted to chronic confinement. Briefly, F1 and F4 generations were confined into small-size tanks and sampled 7 and 55 days after stocking. Cortisol and glucose levels as well as lysozyme activity and immunoglobulin level were evaluated in the serum. Spleen Somatic Index and spleen ROS production were also measured. A proteomic analysis was performed on serum sampled on day 7. Finally, both generations were genetically characterized using a microsatellite approach. Globally, results revealed that chronic confinement did not elicit a typical stress response but resulted in a prolonged immune stimulation. Proteomic results suggested that domestication process influenced the immune status of perch submitted to chronic confinement as the F1 confined fish displayed lower abundance of C3 complement component, transferrin and Apolipoprotein E. Microsatellite data showed a strong genetic drift as well as reduced genetic diversity, allelic number and heterozygosity along with domestication process. The present work is the first to report that fish under domestication can develop an immune response, assessed by a combined approach, following recurrent challenges imposed by captive environment despite a reduced genetic variation.
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Affiliation(s)
- J Douxfils
- University of Namur (FUNDP), Research Unit in Environmental and Evolutionary Biology (URBE), Rue de Bruxelles, 61, B-5000 Namur, Belgium.
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Douxfils J, Mandiki S, Marotte G, Wang N, Silvestre F, Milla S, Henrotte E, Vandecan M, Rougeot C, Mélard C, Kestemont P. Does domestication process affect stress response in juvenile Eurasian perch Perca fluviatilis? Comp Biochem Physiol A Mol Integr Physiol 2011; 159:92-9. [DOI: 10.1016/j.cbpa.2011.01.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 01/27/2011] [Accepted: 01/30/2011] [Indexed: 10/18/2022]
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Douxfils J, Lambert S, Milla S, Henrotte E, Wang N, Mathieu C, Mandiki R, Silvestre F, Kestemont P, Vandecan M, Mélard C, Delaive E, Dieu M, Raes M. Effect of water emersion stressor on stress physiology, immunity and protein expression profiles in Eurasian perch (Perca fluviatilis L.) juveniles under domestication process. Comp Biochem Physiol A Mol Integr Physiol 2009. [DOI: 10.1016/j.cbpa.2009.05.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Milla S, Mathieu C, Lambert S, Douxfils J, Kestemont P. Implication of cortisol/glucocorticoid receptor in the immune response after an acute stress in Eurasian perch. Comp Biochem Physiol A Mol Integr Physiol 2009. [DOI: 10.1016/j.cbpa.2009.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fatima M, Mandiki SNM, Douxfils J, Silvestre F, Coppe P, Kestemont P. Combined effects of herbicides on biomarkers reflecting immune-endocrine interactions in goldfish. Immune and antioxidant effects. Aquat Toxicol 2007; 81:159-67. [PMID: 17194491 DOI: 10.1016/j.aquatox.2006.11.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Revised: 11/15/2006] [Accepted: 11/15/2006] [Indexed: 05/13/2023]
Abstract
Goldfish (Carassius auratus) were exposed to a mixture of herbicides, namely atrazine, simazine, diuron, and isoproturon (ASDI) at a cumulative concentration of 50microg/l for 12 weeks. Control fish and exposed fish were sampled at 4, 8 and 12 weeks of exposure to observe the combined impact of herbicides on non-specific and specific mechanisms of immunity and antioxidant defenses. The antioxidant defenses were evaluated in haemopoietic organs and liver. ASDI-induced stress was reflected as a significant induction of superoxide (O(2)(-)) production in phagocytic cells of head kidney and spleen. In addition, plasma lysozyme activity was consistently high in the treatment group. Specific immunity was assessed by antibody titre responses following immunization of the fish with sheep red blood cells (SRBCs). Antibody titre was reduced throughout the period of observation in ASDI-treated fish. This reduction was found to be significant at week 4 (p<0.05). Herbicide-exposed fish showed reduced resistance against pathogen invasion but remarkable enhancement in lysozyme activity. The ASDI-induced oxidative stress in spleen, kidney and liver was reflected as a change in the antioxidant enzyme activities in these vital organs of fish. Our data indicate that herbicides at concentrations present in water bodies in Europe cause immune suppression in goldfish.
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Affiliation(s)
- M Fatima
- Department of Biology (URBO), University of Namur (FUNDP), Rue de Bruxelles 61, B-5000 Namur, Belgium
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