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Haisma B, Schols SEM, van Oerle RGM, Verbeek-Knobbe K, Hellenbrand D, Verwoerd EJ, Heubel-Moenen FCJI, Stroobants AK, Meijer D, Rijpma SR, Henskens YMC. Comparative analysis of thrombin generation platforms for patients with coagulation factor deficiencies: A comprehensive assessment. Thromb Res 2024; 240:109045. [PMID: 38834002 DOI: 10.1016/j.thromres.2024.109045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/13/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
INTRODUCTION Thrombin generation assays (TGAs) assess the overall functionality of the hemostatic system and thereby provide a reflection of the hemostatic capacity of patients with disorders in this system. Currently, four (semi-)automated TGA platforms are available: the Calibrated Automated Thrombogram, Nijmegen Hemostasis Assay, ST Genesia and Ceveron s100. In this study, we compared their performance for detecting patients with congenital single coagulation factor deficiencies. MATERIALS AND METHODS Pooled patient samples, healthy control samples and normal pooled plasma were tested on all four platforms, using the available reagents that vary in tissue factor and phospholipid concentrations. The TGA parameters selected for analysis were peak height and thrombin potential. Results were normalized by using the calculated mean of healthy controls and a correction for between-run variation. Outcomes were presented as relative values, with the mean of healthy controls standardized to 100 %. RESULTS Across all platforms and reagents used, thrombin potentials and peak heights of samples with coagulation factor deficiencies were lower than those of healthy controls. Reagents designed for bleeding tendencies yielded the lowest values on all platforms (relative median peak height 19-32 %, relative median thrombin potential 19-45 %). Samples representing more severe coagulation factor deficiencies generally exhibited lower relative peak heights and thrombin potentials. CONCLUSIONS Thrombin generation assays prove effective in differentiating single coagulation factor deficient samples from healthy controls, with modest discrepancies observed between the platforms. Reagents designed for assessing bleeding tendencies, featuring the lowest tissue factor and phospholipid concentrations, emerged as the most suitable option for detecting coagulation factor deficiencies.
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Affiliation(s)
- Bauke Haisma
- Department of Hematology, Radboud university medical center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Saskia E M Schols
- Department of Hematology, Radboud university medical center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - René G M van Oerle
- Central Diagnostic Laboratory, Maastricht University Medical Center+, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands; Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands.
| | - Kitty Verbeek-Knobbe
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Dave Hellenbrand
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Central Diagnostic Laboratory, Maastricht University Medical Center+, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands.
| | - Evelien J Verwoerd
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Floor C J I Heubel-Moenen
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Department of Hematology, Internal Medicine, Maastricht University Medical Center+, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands.
| | - An K Stroobants
- Department of Laboratory Medicine, Radboudumc Laboratory of Diagnostics, Radboud university medical center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Danielle Meijer
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Sanna R Rijpma
- Department of Hematology, Radboud university medical center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Department of Laboratory Medicine, Laboratory of Hematology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands.
| | - Yvonne M C Henskens
- Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Geert Grooteplein Zuid 10, 5425 GA Nijmegen, the Netherlands; Central Diagnostic Laboratory, Maastricht University Medical Center+, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands; Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, the Netherlands.
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de Laat-Kremers R, Costanzo S, Roest M, De Curtis A, Huskens D, Di Castelnuovo A, Ninivaggi M, Cerletti C, Donati MB, de Laat B, Iacoviello L. Endogenous thrombin potential and time-dependent thrombin generation parameters are independent risk factors for mortality in the general population. J Thromb Haemost 2024; 22:1558-1568. [PMID: 38382741 DOI: 10.1016/j.jtha.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Thrombin generation (TG) is used as a global test of coagulation and is an indicator of thrombosis and bleeding risk. Until now, data on the association of TG and mortality are inconclusive. OBJECTIVES We investigated the association between TG and mortality in the prospective Moli-sani cohort (n = 21 920). METHODS TG was measured using calibrated automated thrombinography using PPP-Reagent Low. Lag time (LT), endogenous thrombin potential (ETP), peak height, time-to-peak (TTP), and velocity index were quantified. The association of TG and mortality was studied by Cox regression and adjusted for sex, age, body mass index, smoking, contraceptives, and medical history (cardiovascular diseases, hypertension, hypercholesterolemia, diabetes, and cancer). RESULTS LT and TTP were 4.1 ± 1.0 minutes and 6.6 ± 1.5 minutes, on average. The peak height was 364 ± 88 nM, velocity index was 163 ± 63 nM/min, and ETP was 1721 ± 411 nM·min. ETP was negatively associated with all-cause mortality (hazard ratio [HR], 0.86; 95% CI, 0.81-0.92; P < .001). Subjects in the lowest quintile of the ETP (ETPQ1) had a 1.3-fold higher mortality rate. Additionally, a high TTP/LT ratio was negatively associated with mortality (HR, 0.71; 95% CI, 0.57-0.89; P = .003). Individuals in quintile 1 of the TTP/LT ratio had a 1.4-fold higher mortality rate compared with the remainder of the cohort. Subjects that were both in ETPQ1 and TTP/LTQ1 had a 1.8-fold higher mortality rate, regardless of whether they reported history of cardiovascular disease at baseline (HR, 1.61 [CI: 1.07-2.42]) or not (HR, 1.89 [CI: 1.51-2.36]). CONCLUSION Low ETP and TTP/LT ratios are independent risk factors for all-cause mortality in the general population.
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Affiliation(s)
- Romy de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, The Netherlands.
| | - Simona Costanzo
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Pozzilli, Italy
| | - Mark Roest
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands
| | - Amalia De Curtis
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Pozzilli, Italy
| | - Dana Huskens
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands
| | | | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Chiara Cerletti
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Pozzilli, Italy
| | - Maria Benedetta Donati
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Pozzilli, Italy
| | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, The Netherlands; Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, The Netherlands; Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Licia Iacoviello
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Pozzilli, Italy; Department of Medicine and Surgery, Libera Università Mediterranea (LUM) University "Giuseppe Degennaro", Casamassima, Italy
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Tarandovskiy ID, Surov SS, Parunov LA, Liang Y, Jankowski W, Sauna ZE, Ovanesov MV. Investigation of thrombin concentration at the time of clot formation in simultaneous thrombin and fibrin generation assays. Sci Rep 2024; 14:9225. [PMID: 38649717 PMCID: PMC11035586 DOI: 10.1038/s41598-023-47694-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/16/2023] [Indexed: 04/25/2024] Open
Abstract
Thrombin generation (TG) and fibrin clot formation represent the central process of blood coagulation. Up to 95% of thrombin is considered to be generated after the clot is formed. However, this was not investigated in depth. In this study, we conducted a quantitative analysis of the Thrombin at Clot Time (TCT) parameter in 5758 simultaneously recorded TG and clot formation assays using frozen plasma samples from commercial sources under various conditions of activation. These samples were supplemented with clotting factor concentrates, procoagulant lipid vesicles and a fluorogenic substrate and triggered with tissue factor (TF). We found that TCT is often close to a 10% of thrombin peak height (TPH) yet it can be larger or smaller depending on whether the sample has low or high TPH value. In general, the samples with high TPH are associated with elevated TCT. TCT appeared more sensitive to some procoagulant phenotypes than other commonly used parameters such as clotting time, TPH or Thrombin Production Rate (TPR). In a minority of cases, TCT were not predicted from TG parameters. For example, elevated TCT (above 15% of TPH) was associated with either very low or very high TPR values. We conclude that clotting and TG assays may provide complementary information about the plasma sample, and that the TCT parameter may serve as an additional marker for the procoagulant potential in plasma sample.
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Affiliation(s)
- Ivan D Tarandovskiy
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Stepan S Surov
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Leonid A Parunov
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Yideng Liang
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Wojciech Jankowski
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Zuben E Sauna
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA
| | - Mikhail V Ovanesov
- U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA.
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de Laat-Kremers RMW, Wahl D, Zuily S, Ninivaggi M, Regnault V, Musial J, de Groot PG, Devreese KMJ, de Laat B. A thrombin-driven neural net diagnoses the antiphospholipid syndrome without the need for interruption of anticoagulation. Blood Adv 2024; 8:936-946. [PMID: 38163323 PMCID: PMC10877130 DOI: 10.1182/bloodadvances.2023011938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/04/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024] Open
Abstract
ABSTRACT Thrombosis is an important manifestation of the antiphospholipid syndrome (APS). The thrombin generation (TG) test is a global hemostasis assay, and increased TG is associated with thrombosis. APS is currently diagnosed based on clinical and laboratory criteria, the latter defined as anti-cardiolipin, anti-β2-glycoprotein I antibodies, or lupus anticoagulant (LA). APS testing is often performed after a thrombotic episode and subsequent administration of anticoagulation, which might hamper the interpretation of clotting assays used for LA testing. We set out to develop an artificial neural network (NN) that can diagnose APS in patients who underwent vitamin K antagonist (VKA) treatment, based on TG test results. Five NNs were trained to diagnose APS in 48 VKA-treated patients with APS and 64 VKA-treated controls, using TG and thrombin dynamics parameters as inputs. The 2 best-performing NNs were selected (accuracy, 96%; sensitivity, 96%-98%; and specificity, 95%-97%) and further validated in an independent cohort of VKA-anticoagulated patients with APS (n = 33) and controls (n = 62). Independent clinical validation favored 1 of the 2 selected NNs, with a sensitivity of 88% and a specificity of 94% for the diagnosis of APS. In conclusion, the combined use of TG and NN methodology allowed for us to develop an NN that diagnoses APS with an accuracy of 92% in individuals with VKA anticoagulation (n = 95). After further clinical validation, the NN could serve as a screening and diagnostic tool for patients with thrombosis, especially because there is no need to interrupt anticoagulant therapy.
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Affiliation(s)
- Romy M. W. de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, The Netherlands
| | - Denis Wahl
- Vascular Medicine Division, French National Reference Center for Systemic Autoimmune and Autoinflammatory Disorders (Lupus Erythematosus, Antiphospholipid Antibody Syndrome), CHRU de Nancy, Université de Lorraine, INSERM, Défaillance Cardio-Vasculaire Aigüe et Chronique, Nancy, France
| | - Stéphane Zuily
- Vascular Medicine Division, French National Reference Center for Systemic Autoimmune and Autoinflammatory Disorders (Lupus Erythematosus, Antiphospholipid Antibody Syndrome), CHRU de Nancy, Université de Lorraine, INSERM, Défaillance Cardio-Vasculaire Aigüe et Chronique, Nancy, France
| | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Véronique Regnault
- Vascular Medicine Division, French National Reference Center for Systemic Autoimmune and Autoinflammatory Disorders (Lupus Erythematosus, Antiphospholipid Antibody Syndrome), CHRU de Nancy, Université de Lorraine, INSERM, Défaillance Cardio-Vasculaire Aigüe et Chronique, Nancy, France
| | - Jacek Musial
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jagiellonian University, Krakow, Poland
| | - Philip G. de Groot
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
| | - Katrien M. J. Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, The Netherlands
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, The Netherlands
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Stojanovski BM, Di Cera E. Monitoring prothrombin activation in plasma through loss of Förster resonance energy transfer. J Thromb Haemost 2023; 21:1769-1778. [PMID: 36931601 DOI: 10.1016/j.jtha.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/08/2023] [Accepted: 03/08/2023] [Indexed: 03/17/2023]
Abstract
BACKGROUND Current assays that monitor thrombin generation in plasma rely on fluorogenic substrates to follow the kinetics of zymogen activation, which may be complicated by substrate cleavage from other proteases. In addition, these assays depend on activation following cleavage at the prothrombin R320 site and fail to report the cleavage at the alternative R271 site, leading to the shedding of the auxiliary Gla and kringle domains of prothrombin. OBJECTIVES To develop a plasma assay that directly monitors prothrombin activation independent of fluorogenic substrate hydrolysis. METHODS Cleavage at the R271 site of prothrombin is monitored through loss of Förster resonance energy transfer in plasma coagulated along the extrinsic or intrinsic pathway. RESULTS The availability of factor (F)V in plasma strongly influences the rate of prothrombin activation. The rate of thrombin formation is equally perturbed in FV or prothrombin-depleted plasma, implicating that the thrombin-catalyzed feedback reactions that amplify the coagulation response play an important role in generating sufficient amounts of FVa required for the assembly of prothrombinase. Congenital deficiencies in FVIII and FIX significantly slow down cleavage at R271 in plasma coagulated along the extrinsic and intrinsic pathways. Prothrombin activation in FXI-deficient plasma is only perturbed when coagulation is triggered along the intrinsic pathway. CONCLUSION The Förster resonance energy transfer assay enables direct monitoring of prothrombin activation through cleavage at R271 without the need for fluorogenic substrates. The assay is sensitive enough to assess how deficiencies in coagulation factors affect thrombin formation.
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Affiliation(s)
- Bosko M Stojanovski
- Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Enrico Di Cera
- Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.
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de Laat-Kremers R, Zuily S, de Laat B. Editorial: Advances in thrombin generation. Front Cardiovasc Med 2023; 10:1183718. [PMID: 37063969 PMCID: PMC10098350 DOI: 10.3389/fcvm.2023.1183718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Affiliation(s)
- Romy de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- Correspondence: Romy de Laat-Kremers
| | | | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
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Yan Q, Huang S, van der Heijden W, Ninivaggi M, van de Wijer L, de Laat-Kremers R, Van der Ven AJ, de Laat B, de Mast Q. Abacavir use is associated with increased prothrombin conversion. Front Immunol 2023; 14:1182942. [PMID: 37122705 PMCID: PMC10140416 DOI: 10.3389/fimmu.2023.1182942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 03/30/2023] [Indexed: 05/02/2023] Open
Abstract
There is ongoing debate as to whether abacavir (ABC) increases the risk for cardiovascular disease(CVD) in people living with HIV (PLHIV) and the mechanisms underlying this possible association. We recently showed that the use of an ABC-containing regimen was independently associated with increased thrombin generation (TG). In the present study, we aim to explore these findings further, by studying the mechanistical processes that underly the global thrombin generation test via thrombin dynamics analysis. Thrombin dynamics analysis can pinpoint the cause of increased thrombin generation associated with ABC-use either to the procoagulant prothrombin conversion pathway or the anticoagulant thrombin inactivation pathway. In this cross-sectional study, 208 virally suppressed PLHIV were included, of whom 94 were on a ABC-containing regimen, 92 on a tenofovir disoproxil fumarate (TDF)-containing regimen, and the remainder on other regimens. We used Calibrated Automated Thrombinography to measure thrombin generation and perform thrombin dynamics analysis. The total amount of prothrombin conversion, as well as the maximum rate of prothrombin conversion were significantly increased in PLHIV on an ABC containing regimen compared to other treatment regimens. The levels of pro- and anticoagulant factors were comparable, indicating that the ABC-induced changes affect the kinetics of prothrombin conversion rather than procoagulant factor levels. Moreover, Von Willebrand Factor (VWF), active VWF and VWF pro-peptide levels were significantly higher in PLHIV than controls without HIV. However, they did not differ between ABC and non-ABC treated participants.
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Affiliation(s)
- Qiuting Yan
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Shengshi Huang
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Wouter van der Heijden
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
| | - Lisa van de Wijer
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Romy de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
| | - Andre J. Van der Ven
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Bas de Laat
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- *Correspondence: Bas de Laat,
| | - Quirijn de Mast
- Department of Internal Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
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Paar M, Aziz F, Sourij C, Tripolt NJ, Kojzar H, Müller A, Pferschy P, Obermayer A, Banfic T, Di Geronimo Quintero B, Goswami N, Schlagenhauf A, Köstenberger M, Bärnthaler T, Wagner T, Hrzenjak A, Wonisch W, Reibnegger G, Raggam RB, Sourij H, Cvirn G. Only Subclinical Alterations in the Haemostatic System of People with Diabetes after COVID-19 Vaccination. Viruses 2022; 15:10. [PMID: 36680051 PMCID: PMC9867445 DOI: 10.3390/v15010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
People with diabetes have an increased risk of experiencing adverse COVID-19 outcomes. COVID-19 vaccination is, therefore, highly recommended. However, people with diabetes have an inherently elevated risk of thrombotic events and the impact of the vaccination on the coagulation system in this patient population remains to be elucidated. The aim of this study was to investigate the impact of COVID-19 vaccination on the haemostatic system in people with type 1 or type 2 diabetes. We evaluated the effects of COVID-19 vaccination (BioNTech Pfizer, Moderna, AstraZeneca) on standard coagulation parameters, whole blood coagulation (Thrombelastometry), platelet function (impedance aggregation), and thrombin generation (calibrated automated thrombography) in people with type 1 diabetes mellitus (n = 41) and type 2 diabetes mellitus (n = 37). Blood sampling points were prior to vaccination and two weeks after the respective vaccination. Thrombelastometry measurements indicated moderately increased clot formation post-vaccination in people with type 1, as well as with type 2, diabetes: "Clot formation times" were significantly shorter, and both "maximum clot firmness" and "alpha angles" were significantly higher, as compared to the respective pre-vaccination values. Therefore, TEM parameters were not altered after vaccination in patients receiving ASA. Moreover, platelet aggregation was enhanced in people with type 1 diabetes, and plasma levels of D-Dimer were increased in people with type 2 diabetes, following COVID-19 vaccination. All other standard coagulation parameters, as well as thrombin generation, were not affected by the vaccination. The coagulation responses of people with diabetes to COVID-19 vaccination were only subclinical and comparable to those observed in healthy individuals. Our findings suggest that people with diabetes do not face an increased activation of the coagulation post-vaccination.
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Affiliation(s)
- Margret Paar
- Division of Medicinal Chemistry, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | - Faisal Aziz
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Caren Sourij
- Division of Cardiology, Medical University of Graz, 8010 Graz, Austria
| | - Norbert J. Tripolt
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Harald Kojzar
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Alexander Müller
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Peter Pferschy
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Anna Obermayer
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Tamara Banfic
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Bruno Di Geronimo Quintero
- Division of Medicinal Chemistry, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | - Nandu Goswami
- Division of Physiology, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | - Axel Schlagenhauf
- Department of Pediatrics and Adolescent Medicine, Division of General Pediatrics, Medical University of Graz, 8010 Graz, Austria
| | - Martin Köstenberger
- Department of Pediatrics and Adolescent Medicine, Division of General Pediatrics, Medical University of Graz, 8010 Graz, Austria
| | - Thomas Bärnthaler
- Division of Pharmacology, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | - Thomas Wagner
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, 8010 Graz, Austria
| | - Andelko Hrzenjak
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, 8010 Graz, Austria
| | - Willibald Wonisch
- Division of Medicinal Chemistry, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | - Gilbert Reibnegger
- Division of Medicinal Chemistry, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
| | | | - Harald Sourij
- Division of Endocrinology and Diabetology, Interdisciplinary Metabolic Medicine Trials Unit, Medical University of Graz, 8010 Graz, Austria
| | - Gerhard Cvirn
- Division of Medicinal Chemistry, Otto Loewi Research Centre for Vascular Biology, Immunology and Inflammation, Medical University of Graz, 8010 Graz, Austria
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Ferreira LGR, Figueiredo RC, das Graças Carvalho M, Rios DRA. Thrombin generation assay as a biomarker of cardiovascular outcomes and mortality: A narrative review. Thromb Res 2022; 220:107-115. [DOI: 10.1016/j.thromres.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/17/2022]
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10
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Bai C, Konings J, Ninivaggi M, Lancé M, de Laat B, de Laat-Kremers R. Assessing the individual roles of FII, FV, and FX activity in the thrombin generation process. Front Cardiovasc Med 2022; 9:1000812. [PMID: 36204573 PMCID: PMC9530111 DOI: 10.3389/fcvm.2022.1000812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/26/2022] [Indexed: 12/02/2022] Open
Abstract
Thrombin generation (TG) is known as a physiological approach to assess the hemostatic function. Although it correlates well with thrombosis and bleeding, in the current setup it is not sensitive to the effects of fluctuations in single coagulation factors. We optimized the calibrated automated thrombinography (CAT) method to quantify FII, FV and FX activity within the coagulation system. The CAT assay was fine-tuned for the assessment of FII, FV and FX by diluting the samples in FII-, FV-, or FX-deficient plasma, respectively, and measuring TG. Plasma FII levels correlated linearly with the ETP up to a plasma concentration of 100% FII. FV and FX levels correlated linearly with the peak height up to a plasma level of 2.5% FV and 10% FX, respectively. Sensitized CAT protocols were designed by adding a fixed volume of a pre-diluted patient sample to FII, FV, and FX deficient plasma in TG experiments. This approach makes the TG measurement dependent on the activity of the respective coagulation factor. The ETP or peak height were quantified as readouts for the coagulation factor activity. The intra- and inter-assay variation coefficients varied from 5.0 to 8.6%, and from 3.5 to 5.9%, respectively. Reference values were determined in 120 healthy subjects and the assays were clinically validated in 60 patients undergoing coronary artery bypass grafting (CABG). The sensitized CAT assays revealed that the contribution of FII, FV, and FX to the TG process was reduced after CABG surgery, leading to reduced prothrombin conversion and subsequently, lower TG.
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Affiliation(s)
- Cuicui Bai
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Protein Engineering, Synapse Research Institute, Maastricht, Netherlands
| | - Joke Konings
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, Netherlands
| | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
| | - Marcus Lancé
- Department of Anesthesiology, Aga Khan University Hospital, Nairobi, Kenya
| | - Bas de Laat
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
| | - Romy de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- *Correspondence: Romy de Laat-Kremers
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Lóczi L, Orbán-Kálmándi R, Árokszállási T, Fekete I, Fekete K, Héja M, Tóth J, Csiba L, Bagoly Z. Thrombin generation as a predictor of outcomes in patients with non-traumatic intracerebral hemorrhage. Front Neurol 2022; 13:912664. [PMID: 36061990 PMCID: PMC9436391 DOI: 10.3389/fneur.2022.912664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Background Non-traumatic intracerebral hemorrhage (ICH) accounts for 10–15% of all strokes and leads to a higher rate of mortality as compared to ischemic strokes. We aimed to find out whether the thrombin generation assay (TGA) could predict outcomes in patients with ICH. Patients and methods In this prospective, observational study, 87 consecutive patients with ICH and 164 healthy controls were included. Computed tomography (CT), detailed clinical investigation, and laboratory investigations were performed from patients on admission. TGA was performed using stored platelet poor plasma obtained on admission. Lag time, endogen thrombin potential (ETP), peak thrombin, and time to peak parameters were calculated. Short- and long-term outcomes of ICH were defined at 14 days and 3 months post-event according to the NIHSS and the modified Rankin Scale (mRS), respectively. Results Peak thrombin was significantly higher in patients as compared to controls (397.2 ± 93.9 vs. 306 ± 85.3 nM, p < 0.0001). Lag time, ETP, and time to peak parameters showed a significant positive correlation with CRP in both groups. In patients with worse long-term functional outcomes, peak thrombin was significantly higher as compared to those with favorable outcomes [mRS 2–6 median: 402.5 (IQR:344.8–473.8) vs. mRS 0–1: 326.4 (294.2–416.1) nM, p = 0.0096]. Based on the statistically optimal threshold of 339.1 nM peak thrombin, the sensitivity and specificity of this parameter to determine mRS 2–6 as an outcome were 80.8 and 64.7%, respectively. In a binary logistic regression model including age, sex, BMI, smoking status, NIHSS on admission, D-dimer, and peak thrombin (>339.1 nM), only NIHSS and the peak thrombin parameters remained in the model as significant, independent predictors of poor outcome. Lag time and time to peak showed a modest, significant negative correlation with intracerebral bleeding volume on admission (r = −0.2603, p = 0.0231 and r = −0.3698, p = 0.0010, respectively). During the follow-up of patients, estimated hemorrhage volumes on day 90 showed significant positive association with the ETP and peak thrombin parameters (r = 0.3838, p = 0.0363 and r = 0.5383, p = 0.0021, respectively). Conclusion In patients with ICH, TG was increased as compared to healthy controls, which might be explained by the presence of higher inflammatory parameters in patients. Peak thrombin measured on admission might be a useful tool to predict outcomes in patients with ICH.
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Affiliation(s)
- Linda Lóczi
- Division of Clinical Laboratory Sciences, Department of Laboratory Medicine, Faculty of Medicine, Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Rita Orbán-Kálmándi
- Division of Clinical Laboratory Sciences, Department of Laboratory Medicine, Faculty of Medicine, Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Tamás Árokszállási
- Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Fekete
- Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Klára Fekete
- Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Máté Héja
- Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Judit Tóth
- Department of Radiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Csiba
- Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- ELKH-DE Cerebrovascular Research Group, University of Debrecen, Debrecen, Hungary
| | - Zsuzsa Bagoly
- Division of Clinical Laboratory Sciences, Department of Laboratory Medicine, Faculty of Medicine, Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
- ELKH-DE Cerebrovascular Research Group, University of Debrecen, Debrecen, Hungary
- *Correspondence: Zsuzsa Bagoly
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12
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de Laat-Kremers R, Di Castelnuovo A, van der Vorm L, Costanzo S, Ninivaggi M, Cerletti C, Huskens D, De Curtis A, Gialluisi A, Bai C, de Gaetano G, Yin D, Donati MB, de Laat B, Iacoviello L. Increased BMI and Blood Lipids Are Associated With a Hypercoagulable State in the Moli-sani Cohort. Front Cardiovasc Med 2022; 9:897733. [PMID: 35783839 PMCID: PMC9243635 DOI: 10.3389/fcvm.2022.897733] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
The coagulation system can be assessed by the thrombin generation (TG) assay, and increased TG peak height, endogenous thrombin potential (ETP), and velocity index are associated with an increased risk of thrombosis. Obesity had been reported to increase TG and is associated with dyslipidemia, which also predisposes to atherosclerotic cardiovascular disease (CVD). However, the effect of the blood lipid profile on TG has not been studied extensively. To gain more insight into the associations of TG, body mass index (BMI) and lipid profile, we studied TG in relation to these parameters in a large Italian population cohort, the Moli-sani study (N = 22,546; age ≥ 35 years; 48% men). TG was measured in plasma samples collected at the enrollment of subjects in the Moli-sani study. TG was triggered with 1 or 5 pM tissue factor, and TG parameters lag time, peak, ETP, time-to-peak (TTP) and velocity index (VI). Additionally, thrombomodulin was added to assess the function of the activated protein C system during TG. In both women and men, overweight (BMI 25–30 kg/m2) and obesity (BMI > 30 kg/m2) were significantly associated with higher ETP, peak and VI (all p < 0.001). High total cholesterol, triglycerides and LDL-cholesterol levels were significantly associated with increased ETP and peak (all p < 0.001). Linear regression analysis revealed that the ETP is positively associated with both plasma LDL and HDL cholesterol levels, whereas the velocity index is positively associated with HDL cholesterol. Additionally, ETP, peak and VI were significantly associated with the plasma triglycerides content. In conclusion, our study shows significant associations of high BMI and blood lipid levels with increased TG parameters, and this hypercoagulability may partly explain the increased risk of CVD in individuals with obesity and/or dyslipidemia.
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Affiliation(s)
- Romy de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- *Correspondence: Romy de Laat-Kremers
| | | | - Lisa van der Vorm
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
| | - Simona Costanzo
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
| | - Chiara Cerletti
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Dana Huskens
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Platelet Pathophysiology, Synapse Research Institute, Maastricht, Netherlands
| | - Amalia De Curtis
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | - Alessandro Gialluisi
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
- Research Center in Epidemiology and Preventive Medicine (EPIMED), Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Cuicui Bai
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Protein Engineering, Synapse Research Institute, Maastricht, Netherlands
| | | | - Dongmei Yin
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
| | | | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, Netherlands
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, Netherlands
- Department of Protein Engineering, Synapse Research Institute, Maastricht, Netherlands
| | - Licia Iacoviello
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
- Research Center in Epidemiology and Preventive Medicine (EPIMED), Department of Medicine and Surgery, University of Insubria, Varese, Italy
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13
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Zhou R, Bozbas E, Allen-Redpath K, Yaqoob P. Circulating Extracellular Vesicles Are Strongly Associated With Cardiovascular Risk Markers. Front Cardiovasc Med 2022; 9:907457. [PMID: 35694679 PMCID: PMC9178174 DOI: 10.3389/fcvm.2022.907457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/05/2022] [Indexed: 11/23/2022] Open
Abstract
Background Extracellular vesicles (EVs) are submicron membrane-bound vesicles released from various cells, which are emerging as a potential novel biomarker in cardiovascular diseases (CVDs) due to their procoagulatory and prothrombotic properties. However, there is little information about the relationships between circulating EVs and conventional and thrombogenic risk markers of CVDs. Objective To investigate the relationships between circulating EVs, conventional cardiovascular risk markers and thrombogenic markers in subjects with moderate risk of CVDs. Design Subjects (n = 40) aged 40-70 years with moderate risk of CVDs were recruited and assessed for body mass index, blood pressure and plasma lipid profile, as well as platelet aggregation, clot formation, thrombin generation and fibrinolysis. Numbers of circulating EVs were assessed by Nanoparticle Tracking Analysis and flow cytometry. A range of assays were used to assess the procoagulatory activity of plasma and circulating EVs. Results Circulating EV numbers were positively associated with body mass index, blood pressure, plasma triacylglycerol concentration and overall CVD risk. Higher circulating EV numbers were also associated with increased thrombin generation and enhanced clot formation, and EVs isolated from subjects with moderate CVD risk promoted thrombin generation ex vivo. Higher numbers of endothelial-derived EVs were associated with a greater tendency for clot lysis. Plasma triacylglycerol concentration and diastolic blood pressure independently predicted circulating EV numbers, and EV numbers independently predicted aspects of thrombin generation and clot formation and 10-year CVD risk. Conclusion Circulating EVs were strongly associated with both conventional and thrombogenic risk markers of CVDs, and also with overall CVD risk, highlighting a potentially important role for EVs in CVDs.
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Gao L, Li L, Hu J, Li G, Zhang Y, Dai X, De Z, Xu F. Metformin inhibits multiple myeloma serum-induced endothelial cell thrombosis by down-regulating miR-532. Ann Vasc Surg 2022; 85:347-357.e2. [PMID: 35561893 DOI: 10.1016/j.avsg.2022.04.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/16/2022] [Accepted: 04/20/2022] [Indexed: 11/01/2022]
Abstract
OBJECTIVES Thrombotic complications in multiple myeloma (MM) impairs the quality of life of patients. Metformin has a certain effect on anti-thrombosis, but its role and mechanism in MM-induced thrombosis are still uncovered. Therefore, this study evaluated the effect of metformin on MM-induced thrombosis. METHODS Human umbilical vein endothelial cells (HUVECs) were exposed to normal serum (15%), MM serum (15%), metformin (0.01 mmol/L), or MM serum and metformin simultaneously. The expression of tissue factor (TF) in HUVECs was detected by flow cytometry and quantitative real-time PCR (qRT-PCR). QRT-PCR was also used to determine the expressions of endothelial protein C receptor (EPCR) and miR-532. The generation of thrombin and activated protein C was measured by thrombin generation and protein C activation assays. And EPCR, extracellular signal-regulated kinase (ERK) 1/2, p38 mitogen activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) pathway related protein expressions were detected by western blot. RESULT MM serum increased the expressions of TF, EPCR and miR-532, and induced thrombin generation and protein C activation in HUVECs. Based on the MM serum treatment, metformin decreased these expressions and inhibited the thrombin generation and protein C activation in HUVECs. However, miR-532 mimic reversed the effect of metformin and promoted the levels of thrombosis related indicators in HUVECs. Moreover, metformin activated the EPCR, ERK 1/2, p38 MAPK and NF-κB pathways but miR-532 mimic suppressed the activation of pathways. CONCLUSION Metformin played an inhibitory effect on MM serum-induced HUVEC thrombosis, suggesting that metformin could serve as a novel antithrombotic approach for MM patients.
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Affiliation(s)
- Lixia Gao
- Department of Hematology, Karamay Central Hospital
| | - Li Li
- Department of Hematology, Karamay Central Hospital
| | - Jun Hu
- Department of Hematology, Karamay Central Hospital
| | - Guiyuan Li
- Oncology Department, Tongji Hospital Affiliated to Shanghai, Tongji University
| | - Yizhi Zhang
- Department of Hematology, Karamay Central Hospital
| | - Xiangjun Dai
- Science Education Department, Karamay Central Hospital
| | - Zhenyi De
- Department of Pathology, Karamay Central Hospital
| | - Fenglei Xu
- Department of Neurology, Karamay Central Hospital.
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15
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Vermeiren P, Vandevelde A, Peperstraete H, Devreese KMJ. Monitoring of heparin therapy beyond the anti-Xa activity assay: Evaluation of a thrombin generation assay. Int J Lab Hematol 2022; 44:785-795. [PMID: 35438827 DOI: 10.1111/ijlh.13836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/24/2022] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Global coagulation assays may be of added value to the anti-Xa assay for monitoring heparin therapy. Unlike most testing methods, the thrombin generation assay (TGA) has the ability to assess the overall function of the hemostatic system, which provides information on the anticoagulation status of patients. We compared the TGA, measured with ST Genesia® STG-DrugScreen® reagent, with the anti-Xa assay for monitoring heparin therapy in inflammatory and non-inflammatory patients. We also determined reference values for STG-DrugScreen® thrombin generation (TG) parameters. METHODS Reference values were determined on 120 healthy donors. Furthermore, a spiking experiment with unfractionated heparin (UFH) and low molecular weight heparin (LMWH) was performed, and samples of patients receiving UFH or LMWH were analyzed with ST Genesia® and the anti-Xa assay. RESULTS High discrepancy between TG parameters and anti-Xa activity was observed for low LMWH anti-Xa levels. TG parameters were affected in 36/46 (time to peak) to 42/46 (peak height) patients during UFH therapy with sub-target anti-Xa activity levels. CONCLUSION TGA seems insufficiently sensitive for low concentrations of LMWH. There may be an added value of the TGA for monitoring UFH in so-called heparin-resistant patients. Therefore, the TGA has the potential to be introduced as an additional tool for monitoring heparin therapy.
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Affiliation(s)
- Pauline Vermeiren
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Arne Vandevelde
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | | | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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16
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Cominato L, Franco RR, Ybarra M, Frascino AV, Steinmetz L, Ferraro AA, Aivazoglou Carneiro JD, Damiani D. Obesity as a Thrombogenic and Cardiovascular Risk Factor in Children. Horm Res Paediatr 2022; 94:410-415. [PMID: 34610594 DOI: 10.1159/000519264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/27/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Obesity leads to increased risk of thromboembolic events in adults, but few studies have addressed the relationship between obesity and thrombogenic risk during childhood. The aim of this study was to evaluate the prothrombotic state of obese children in comparison with healthy children. METHODS Thrombin generation, fibrinogen, and D-dimer levels, along with metabolic parameters, were measured in 72 prepubertal children, of which 47 were obese and 25 eutrophic. RESULTS A significant increase in thrombin generation, fibrinogen, and dyslipidemia was found among obese patients. CONCLUSION A prothrombotic state develops in childhood obesity during the prepubertal phase.
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Kanji R, Vandenbriele C, Arachchillage DRJ, Price S, Gorog DA. Optimal Tests to Minimise Bleeding and Ischaemic Complications in Patients on Extracorporeal Membrane Oxygenation. Thromb Haemost 2022; 122:480-491. [PMID: 33984868 DOI: 10.1055/a-1508-8230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Patients supported with extracorporeal membrane oxygenation (ECMO) experience a very high frequency of bleeding and ischaemic complications, including stroke and systemic embolism. These patients require systemic anticoagulation, mainly with unfractionated heparin (UFH) to prevent clotting of the circuit and reduce the risk of arterial or venous thrombosis. Monitoring of UFH can be very challenging. While most centres routinely monitor the activated clotting time and activated partial thromboplastin time (aPTT) to assess UFH, measurement of anti-factor Xa (anti-Xa) level best correlates with heparin dose, and appears to be predictive of circuit thrombosis, although aPTT may be a better predictor of bleeding. Although monitoring of prothrombin time, platelet count and fibrinogen is routinely undertaken to assess haemostasis, there is no clear guidance available regarding the optimal test.Additional tests, including antithrombin level and thromboelastography, can be used for risk stratification of patients to try and predict the risks of thrombosis and bleeding. Each has their specific role, strengths and limitations. Increased thrombin generation may have a role in predicting thrombosis. Acquired von Willebrand syndrome is frequent with ECMO, contributing to bleeding risk and can be detected by assessing the von Willebrand factor activity-to-antigen ratio, while the platelet function analyser can be used in urgent situations to detect this, with a high negative predictive value. Tests of platelet aggregation can aid in the prediction of bleeding.To personalise management, a selection of complementary tests to collectively assess heparin-effect, coagulation, platelet function and platelet aggregation is proposed, to optimise clinical outcomes in these high-risk patients.
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Affiliation(s)
- Rahim Kanji
- Faculty of Medicine, National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Christophe Vandenbriele
- Department of Cardiovascular Diseases, University Hospitals Leuven, Leuven, Belgium.,Intensive Care Unit, Royal Brompton Hospital, London, United Kingdom
| | - Deepa R J Arachchillage
- Haematology Department, Royal Brompton Hospital, London, United Kingdom.,Centre for Haematology, Imperial College Healthcare NHS Trust & Imperial College, London, United Kingdom
| | - Susanna Price
- Faculty of Medicine, National Heart and Lung Institute, Imperial College, London, United Kingdom.,Intensive Care Unit, Royal Brompton Hospital, London, United Kingdom
| | - Diana Adrienne Gorog
- Faculty of Medicine, National Heart and Lung Institute, Imperial College, London, United Kingdom
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18
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The effect of micronized progesterone and medroxyprogesterone acetate in combination with transdermal estradiol on hemostatic biomarkers in postmenopausal women diagnosed with POI and early menopause. Menopause 2022; 29:580-589. [DOI: 10.1097/gme.0000000000001944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Ericksen WL, Levy JH, Kim ES, Nie L, Senzel LB, Bennett-Guerrero E. Thrombin Generation in Cardiac Versus Noncardiac Surgical Cohorts. Anesth Analg 2022; 134:606-614. [PMID: 35180177 DOI: 10.1213/ane.0000000000005840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Bleeding can be a significant problem after cardiac surgery. As a result, venous thromboembolism (VTE) or anticoagulation or both following mechanical valve implantation are often delayed in these patients. The calibrated automated thrombin (CAT) generation assay has become the gold standard to evaluate thrombin generation, a critical step in clot formation independent of other hemostatic processes (eg, platelet activation, fibrin cross-linking, and fibrinolysis), and is increasingly used to examine thrombotic and hemorrhagic outcomes. No study has currently used this assay to compare the thrombin generation profiles of cardiac surgical patients to noncardiac surgical patients. We hypothesize that noncardiac patients may be less prone to postoperative changes in thrombin generation. METHODS A prospective, observational, cohort study was undertaken using blood samples from 50 cardiac and 50 noncardiac surgical patients preoperatively, immediately postoperatively, and on postoperative days 1 to 4. Platelet-poor plasma samples were obtained from patients preoperatively, on arrival to the postanesthesia care unit (PACU) or intensive care unit (ICU), and daily on postoperative days 1 to 4 if patients remained inpatient. Samples were evaluated for CAT measurements. Patient and surgical procedure characteristics were obtained from the electronic medical record. RESULTS The primary outcome variable, median endogenous thrombin potential (ETP), measured in nanomolar × minutes (nM × min), was decreased 100% in cardiac surgical versus 2% in noncardiac patients (P < .001). All parameters of thrombin generation were similarly depressed. Cardiac (versus noncardiac) surgical type was associated with -76.5% difference of percent change in ETP on multivariable regression analysis (95% confidence interval [CI], -87.4 to -65.5; P value <.001). CONCLUSIONS Cardiac surgical patients exhibit a profound decrease in thrombin generation postoperatively compared with noncardiac surgical patients evaluated by this study. Hemodilution and coagulation factor depletion likely contribute to this decreased thrombin generation after cardiac surgery.
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Affiliation(s)
- W Leif Ericksen
- From the Department of Anesthesiology, Stony Brook University, Stony Brook, New York
| | - Jerrold H Levy
- Departments of Anesthesiology and Surgery, Duke University, Durham, North Carolina
| | - Ethan S Kim
- From the Department of Anesthesiology, Stony Brook University, Stony Brook, New York
| | - Lizhou Nie
- Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, New York
| | - Lisa B Senzel
- Department of Pathology, Stony Brook University, Stony Brook, New York
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20
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Ishikawa T, Nakajima Y, Omae T, Ogiwara K, Nogami K. Comprehensive coagulation and fibrinolytic potential in the acute phase of pediatric patients with idiopathic nephrotic syndrome evaluated by whole blood-based rotational thromboelastometry. Pediatr Nephrol 2022; 37:1605-1614. [PMID: 34997323 PMCID: PMC8741554 DOI: 10.1007/s00467-021-05366-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Venous thromboembolism is a rare, serious complication of idiopathic nephrotic syndrome (INS) in childhood. The mechanisms responsible for the hypercoagulable state in the acute phase of INS are poorly understood, however. This study aimed to assess overall coagulation and fibrinolytic function in pediatric patients with INS. METHODS Global coagulation and fibrinolysis were examined in whole blood samples from 22 children with initial onset INS (initial-group), 22 children with relapsed INS (relapse-group), and 15 control pediatric patients using rotational thromboelastometry (ROTEM®). In the initial-group, blood samples were obtained before (week 0) and 1-4 weeks after initiation of corticosteroid therapy. EXTEM and FIBTEM were used to assess coagulation and fibrinolysis, respectively. Clot time (CT), clot formation time (CFT), maximum clot firmness (MCF), and α-angle were determined as coagulation parameters, and lysis index at 30 and 60 min (LI30 and LI60, respectively) were assessed as fibrinolytic parameters. RESULTS CT was significantly shortened, and MCF and α-angle were significantly greater than controls at week 0 and week 1 both in the initial-group and the relapse-group. MCF correlated with serum albumin (r = 0.70, p < 0.001) and fibrinogen level (r = 0.68, p < 0.001). The fibrinolytic parameters (LI30 and LI60) in the initial-group were stable and higher than those in controls at all time points (p < 0.01). CONCLUSIONS We have shown that the hypofibrinolytic defect did not improve with effective NS treatment at the early 4-week time-point. Additionally, a likely pre-thrombotic state was evident in the period before initial onset and 1 week after corticosteroid therapy in pediatric INS.
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Affiliation(s)
- Tomoaki Ishikawa
- Department of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Yuto Nakajima
- Department of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan ,Advanced Medical Science of Thrombosis and Hemostasis, Nara Medical University, Kashihara, Nara Japan
| | - Takashi Omae
- Department of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Kenichi Ogiwara
- Department of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522 Japan
| | - Keiji Nogami
- Department of Pediatrics, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
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21
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Wahlstrøm KL, Ekeloef S, Sidelmann JJ, Gögenur I, Münster AMB. Effect of remote ischemic preconditioning on fibrin formation and metabolism in patients undergoing hip fracture surgery: a randomized clinical trial. Blood Coagul Fibrinolysis 2022; 33:25-33. [PMID: 34561340 PMCID: PMC8728681 DOI: 10.1097/mbc.0000000000001090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Abstract
Remote ischemic preconditioning (RIPC) prior to surgery has recently been shown to reduce the risk of myocardial injury and myocardial infarction after hip fracture surgery. This study investigated whether RIPC initiated antithrombotic mechanisms in patients undergoing hip fracture surgery. This trial was a predefined sub-study of a multicentre randomized clinical trial. Adult patients with cardiovascular risk factors undergoing hip fracture surgery between September 2015 and September 2017 were randomized 1 : 1 to RIPC or control. RIPC was initiated before surgery with a tourniquet applied to the upper arm and it consisted of four cycles of 5 min of forearm ischemia followed by five minutes of reperfusion. The outcomes such as surgery-induced changes in thrombin generation, fibrinogen/fibrin turnover, tissue plasminogen activator, plasminogen activator inhibitor-1 and fibrin structure measurements were determined preoperatively (prior to RIPC) and 2 h postoperatively. One hundred and thirty-seven patients were randomized to RIPC (n = 65) or control (n = 72). There were no significant changes in thrombin generation, fibrinogen/fibrin turnover or fibrin structure measurements determined pre and postoperatively between patients in the RIPC and control groups. Subgroup analyses on patients not on anticoagulant therapy (n = 103), patients receiving warfarin (n = 17) and patients receiving direct oral anticoagulant therapy (n = 18) showed no significant changes between the RIPC-patients and controls. RIPC did not affect changes in thrombin generation, fibrin turnover or fibrin structure in adult patients undergoing hip fracture surgery suggesting that the cardiovascular effect of RIPC in hip fracture surgery is not related to alterations in fibrinogen/fibrin metabolism.
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Affiliation(s)
- Kirsten L. Wahlstrøm
- Centre for Surgical Science, Department of Surgery, Zealand University Hospital, Køge
| | - Sarah Ekeloef
- Centre for Surgical Science, Department of Surgery, Zealand University Hospital, Køge
| | - Johannes J. Sidelmann
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark and Department of Clinical Biochemistry, University Hospital of Southern Denmark
| | - Ismail Gögenur
- Centre for Surgical Science, Department of Surgery, Zealand University Hospital, Køge
| | - Anna-Marie B. Münster
- Unit for Thrombosis Research, Department of Regional Health Research, University of Southern Denmark and Department of Clinical Biochemistry, University Hospital of Southern Denmark
- Department of Clinical Biochemistry, Regional Hospital West Jutland, Holstebro, Denmark
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22
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Thrombin Generation Assay and Hemostatic Profile for Elucidating Hypercoagulability in Endogenous Canine Hyperadrenocorticism. Top Companion Anim Med 2021; 45:100581. [PMID: 34509666 DOI: 10.1016/j.tcam.2021.100581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 08/21/2021] [Accepted: 09/02/2021] [Indexed: 11/21/2022]
Abstract
Canine hyperadrenocorticism is a common endocrine disorder caused by chronic secretion of glucocorticoid, often associated with hypercoagulability and secondary thrombosis. The thrombin generation assay (TGA) evaluates hemostasis globally by measuring endogenous thrombin potential. We aimed to determine whether TGA is suitable for assessing hypercoagulability in dogs with endogenous hyperadrenocorticism (HAC), and to correlate TGA with coagulation markers including fibrinogen, antithrombin (AT), D-dimer, prothrombin time (PT) and activated partial thromboplastin time (aPTT), and with routine laboratory tests for elucidating prothrombotic mechanisms and evaluating their utility as hypercoagulability screening tests. Thrombin generation performed with high activator concentration showed significantly higher endogenous thrombin potential (ETP) (P = .0239) and peak thrombin (P = .0281) in Cushing patients. Fibrinogen (P = <.0001) and AT (P = .0444) activities were significantly higher in the HAC group, while those of PT (P = .0046) and aPTT (P = .0002) were lower. Basal cortisol levels correlated positively with fibrinogen (r = 0.4503; P = .0355) and negatively with AT activity (r = -0.4580; P = .0280). Fibrinogen and hematocrit values were inversely correlated (r = -0.4853; P = .0076). Our study confirmed the presence of higher thrombin generation in dogs with HAC. However, TGA performed with lower activator concentrations was unsuitable for detecting hypercoagulability. Higher AT and fibrinogen levels and lower aPTT activity were identified in dogs with HAC relative to controls suggesting a potential role for the combined use of these assays when assessing hypercoagulability in canine hyperadrenocorticism.
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23
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Mandlebe B, Orundami OI, Lynch LA, Teale G, Said JM, Cutts BA. Maternal thrombin generation and D-dimer levels in obesity and pregnancy: results from the maternal thrombin generation in obesity and pregnancy (MaTOPs) study. Blood Coagul Fibrinolysis 2021; 32:394-400. [PMID: 34117131 DOI: 10.1097/mbc.0000000000001053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Venous thromboembolic disease (VTE) risk increases five-fold antenatally and 14-fold during the puerperium. Obesity significantly increases this risk. The D-dimer assay and more novel Calibrated Automated Thrombogram (CAT) assay laboratory tests display potential for use in VTE risk stratification in pregnancy, although to date, research in the performance characteristics of these tests in obese and nonobese pregnant populations is limited. The aim of this study was to compare D-dimer and thrombin generation levels in obese and nonobese pregnant women. Pregnant women were recruited and categorised, as obese (BMI ≥30) or nonobese (BMI 18.5-25). Blood was collected at 26-28 weeks' gestation, 36-40 weeks' gestation and 6-12 weeks postpartum and D-dimer concentrations and endogenous thrombin potential (ETP) were determined. Student's t-test was used to analyse differences in mean D-dimer and ETP. At 36-40 weeks, obese pregnant women had higher D-dimer concentrations (P = 0.001) but lower ETP levels compared with nonobese women (P = 0.044). D-dimer was higher in nonobese than in obese women at 6-12 weeks postpartum (P = 0.026). There was no difference in mean D-dimer (P = 0.825) and mean ETP (P = 0.424) between obese and nonobese women at 26-28 weeks. No difference was observed in mean ETP at 6-12 weeks postpartum (P = 0.472). ETP was lower in both obese and nonobese women postpartum than during pregnancy. D-dimer was lower in obese women but not in nonobese women postpartum. D-dimer concentrations and ETP were not significantly different during multiple time points in pregnancy and postpartum between obese and nonobese pregnant women suggesting limited utility in VTE risk assessment in obese pregnant women.
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Affiliation(s)
- Batsho Mandlebe
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne
| | | | - Lee-Anne Lynch
- Women's and Children's Division, Joan Kirner Women's and Children's at Sunshine Hospital, St Albans
| | - Glyn Teale
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne
- Women's and Children's Division, Joan Kirner Women's and Children's at Sunshine Hospital, St Albans
| | - Joanne M Said
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne
- Women's and Children's Division, Joan Kirner Women's and Children's at Sunshine Hospital, St Albans
- Department of Obstetrics, The Royal Women's Hospital, Parkville, Victoria, Australia
| | - Briony A Cutts
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne
- Women's and Children's Division, Joan Kirner Women's and Children's at Sunshine Hospital, St Albans
- Department of Obstetrics, The Royal Women's Hospital, Parkville, Victoria, Australia
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24
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[Thrombin generation assay in autoimmune disease]. Rev Med Interne 2021; 42:862-868. [PMID: 34175144 DOI: 10.1016/j.revmed.2021.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 05/18/2021] [Accepted: 06/06/2021] [Indexed: 01/05/2023]
Abstract
Thrombin generation assay (TGA) is a useful tool to evaluate the initiation, propagation and inhibition of coagulation. TGA is a global test that is used to assess hemorrhagic risk in hemophilia patients, but it can also be used to study hypercoagulable states. The interest of TGA is to screen for cardiovascular risk, which is regularly associated with autoimmune disease (AID) such as antiphospholipid syndrome. Indeed, TGA has been used to evaluate hypercoagulability in patients with antiphospholipid syndrome treated with rivaroxaban versus warfarin. In other AIDs without thrombotic events, TGA measurement is elevated, mainly in rheumatoid arthritis (RA), systemic lupus erythematosus and Behçet's disease. These findings in RA are correlated with the inflammatory activity of the disease. In systemic lupus erythematosus and Behçet's disease, TGA appears to reflect disease activity. In conclusion, TGA remains relatively under used in the clinical evaluation of AID, but it could play a greater role in the evaluation of certain potentially thrombogenic treatments in AID. Finally, TGA helps measuring AID activity, due to the clearlink between coagulation and inflammation, despite some limitations of interpretation mainly due to a lack of standardization.
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25
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de Breet CPDM, Zwaveling S, Vries MJA, van Oerle RG, Henskens YMC, Van't Hof AWJ, van der Meijden PEJ, Veenstra L, Ten Cate H, Olie RH. Thrombin Generation as a Method to Identify the Risk of Bleeding in High Clinical-Risk Patients Using Dual Antiplatelet Therapy. Front Cardiovasc Med 2021; 8:679934. [PMID: 34179143 PMCID: PMC8224526 DOI: 10.3389/fcvm.2021.679934] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/04/2021] [Indexed: 01/29/2023] Open
Abstract
Background: Patients using dual antiplatelet therapy after percutaneous coronary intervention are at risk for bleeding. It is currently unknown whether thrombin generation can be used to identify patients receiving dual antiplatelet therapy with increased bleeding risk. Objectives: To investigate whether thrombin generation measurement in plasma provides additional insight into the assessment of bleeding risk for high clinical-risk patients using dual antiplatelet therapy. Methods: Coagulation factors and thrombin generation in platelet-poor plasma were measured in 93 high clinical-risk frail patients using dual antiplatelet therapy after percutaneous coronary intervention. During 12-month follow-up, clinically relevant bleedings were reported. Thrombin generation at 1 and 6 months after percutaneous coronary intervention was compared between patients with and without bleeding events. Results: One month after percutaneous coronary intervention, the parameters of thrombin generation, endogenous thrombin potential, peak height, and velocity index were significantly lower in patients with bleeding in the following months compared to patients without bleeding. At 6 months follow-up, endogenous thrombin potential, peak height, and velocity index were still (significantly) decreased in the bleeding group as compared to non-bleeders. Thrombin generation in the patients' plasma was strongly dependent on factor II, V, and VIII activity and fibrinogen. Conclusion: High clinical-risk patients using dual antiplatelet therapy with clinically relevant bleeding during follow-up show reduced and delayed thrombin generation in platelet-poor plasma, possibly due to variation in coagulation factors. Thus, impaired thrombin-generating potential may be a "second hit" on top of dual antiplatelet therapy, increasing the bleeding risk in high clinical-risk patients. Thrombin generation has the potential to improve the identification of patients using dual antiplatelet therapy at increased risk of bleeding.
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Affiliation(s)
- C P D M de Breet
- Department of Internal Medicine, Maastricht Universitair Medisch Centrum+, Maastricht, Netherlands.,Department of Internal Medicine, Zuyderland Medisch Centrum, Heerlen, Netherlands
| | - S Zwaveling
- Department of Biochemistry-CARIM, Maastricht University, Maastricht, Netherlands.,Groene Hart Ziekenhuis, Gouda, Netherlands
| | - M J A Vries
- Department of Internal Medicine, Jeroen Bosch Ziekenhuis, 's-Hertogenbosch, Netherlands
| | - R G van Oerle
- Department of Biochemistry-CARIM, Maastricht University, Maastricht, Netherlands
| | - Y M C Henskens
- Department of Biochemistry-CARIM, Maastricht University, Maastricht, Netherlands
| | - A W J Van't Hof
- Department of Cardiology, Zuyderland Medisch Centrum, Heerlen, Netherlands.,Department of Cardiology, Maastricht Universitair Medisch Centrum+, Maastricht, Netherlands
| | | | - L Veenstra
- Department of Cardiology, Zuyderland Medisch Centrum, Heerlen, Netherlands
| | - H Ten Cate
- Department of Internal Medicine, Maastricht Universitair Medisch Centrum+, Maastricht, Netherlands.,Department of Biochemistry-CARIM, Maastricht University, Maastricht, Netherlands
| | - R H Olie
- Department of Internal Medicine, Maastricht Universitair Medisch Centrum+, Maastricht, Netherlands.,Department of Biochemistry-CARIM, Maastricht University, Maastricht, Netherlands
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26
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Måseide RJ, Berntorp E, Nummi V, Lassila R, Tjønnfjord GE, Holme PA. Bleeding phenotype of patients with moderate haemophilia A and B assessed by thromboelastometry and thrombin generation. Haemophilia 2021; 27:793-801. [PMID: 34106506 DOI: 10.1111/hae.14355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/04/2021] [Accepted: 05/28/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Predicting the bleeding phenotype is crucial for the management of patients with moderate haemophilia. Global coagulation assays evaluate haemostasis more comprehensively than conventional methods. AIM To explore global coagulation assays and the bleeding phenotype of patients with moderate haemophilia A (MHA) and B (MHB). METHODS The MoHem study is a cross-sectional, multicentre study covering Nordic patients with MHA and MHB. Thromboelastometry in whole blood and thrombin generation (TG) in platelet-poor plasma (1, 2.5 and 5 pM tissue factor (TF)) were compared with joint health (Haemophilia Joint Health Score (HJHS)) and treatment modality. RESULTS We report on 61 patients from Oslo and Helsinki: 24 MHA and 37 MHB. By TG (2.5 pM TF), patients who had been without replacement therapy during the previous 12 months depicted higher endogenous thrombin potential (P = .03). In contrast, those who had low ETP (< median) captured higher HJHS (P = .02). Patients who had undergone orthopaedic surgery generated least thrombin (P = .02). By thromboelastometry, those without the need of factor consumption had short clotting times, and quick times to maximum velocity (< median values) (P = .03). Factor VIII/factor IX activity (FVIII/FIX:C) did not align with the bleeding phenotype, but FIX:C ≤ 3 IU/dL was associated with lower peak thrombin (P = .03). CONCLUSION TG differentiated patients with moderate haemophilia according to HJHS, annual factor consumption, and whether orthopaedic surgery had been performed. Thromboelastometry differentiated according to factor consumption only. Global coagulation assays may assist predicting the bleeding phenotype in moderate haemophilia.
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Affiliation(s)
- Ragnhild J Måseide
- Department of Haematology, Oslo University Hospital, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Erik Berntorp
- Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Vuokko Nummi
- Coagulation Disorders Unit, Haematology, Comprehensive Cancer Centre, Helsinki University Hospital, and Research Program in Systems Oncology, Faculty of Medicine, Helsinki University, Helsinki, Finland
| | - Riitta Lassila
- Coagulation Disorders Unit, Haematology, Comprehensive Cancer Centre, Helsinki University Hospital, and Research Program in Systems Oncology, Faculty of Medicine, Helsinki University, Helsinki, Finland
| | - Geir E Tjønnfjord
- Department of Haematology, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Pål A Holme
- Department of Haematology, Oslo University Hospital, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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27
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Cornette M, Monteyne T, De Kesel PM, Devreese KMJ. Thrombin generation measured by two platforms in patients with a bleeding tendency. J Thromb Haemost 2021; 19:1460-1471. [PMID: 33724649 DOI: 10.1111/jth.15292] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Mild to moderate bleeding disorders are a diagnostic challenge. Many patients remain undiagnosed despite thorough and repeated laboratory testing. Thrombin generation (TG) is an overall assay measuring the functionality of the hemostatic system and may be a useful tool in diagnosing patients with bleeding tendency. OBJECTIVES We examined the added value of TG in patients with mild bleeding tendency with and without diagnosis after classical laboratory testing. Further, we investigated the role of different expressions of results, between-method variation, and reference ranges. METHODS TG of patients and controls was measured in parallel by two TG platforms (ST Genesia and calibrated automated thrombogram [CAT]). All TG parameters in patient and control groups were compared by statistical analysis (Mann-Whitney U tests) including visual representation with box-and-whisker plots. Results were expressed as normalized ratios (ST Genesia and CAT) or corrected values (ST Genesia). Reference intervals were calculated to which patient results were compared. We studied lot-to-lot reagent variability for both platforms. RESULTS In 62.7% (ST Genesia) to 69.5% (CAT) of patients undiagnosed with a traditional laboratory work-up, abnormal TG parameters (lag time and endogenous thrombin potential expressed as normalized ratio and/or corrected value) were detected. In the group of previously diagnosed patients, abnormal parameters were found in 58.1% of patients for both TG assays. No relevant lot-to-lot reagent variability was observed. CONCLUSIONS Adding TG helps with diagnosing patients with mild bleeding disorder. TG seems a promising tool in diagnosis of bleeding tendency, but further evaluation is necessary before application in diagnostic laboratory testing.
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Affiliation(s)
- Margot Cornette
- Coagulation Laboratory, Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
| | - Tinne Monteyne
- Coagulation Laboratory, Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
| | - Pieter M De Kesel
- Coagulation Laboratory, Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
| | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, University Hospital Ghent, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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28
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de Laat-Kremers RMW, Wahl D, Zuily S, Ninivaggi M, Chayouâ W, Regnault V, Musial J, de Groot PG, Devreese KMJ, de Laat B. Deciphered coagulation profile to diagnose the antiphospholipid syndrome using artificial intelligence. Thromb Res 2021; 203:142-151. [PMID: 34022673 DOI: 10.1016/j.thromres.2021.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/28/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022]
Abstract
The antiphospholipid syndrome (APS) is diagnosed by the presence of lupus anticoagulant and/or antibodies against cardiolipin or β2-glycoprotein-1 and the occurrence of thrombosis or pregnancy morbidity. The assessment of overall coagulation is known to differ in APS patients compared to normal subjects. The accelerated production of key factor thrombin causes a prothrombotic state in APS patients, and the reduced efficacy of the activated protein C pathway promotes this effect. Even though significant differences exist in the coagulation profile between normal controls and APS patients, it is not possible to rely on a single test result to diagnose APS. A neural network is a computing system inspired by the human brain that can be trained to distinguish between healthy subjects and patients based on subject specific data. In a first cohort of patients, we developed a neural networking that diagnoses APS. We clinically validated this neural network in a separate cohort consisting of APS patients, normal controls, controls visiting the hospital for other indications and two diseased control groups (thrombosis patients and auto-immune disease patients). The positive predictive value ranged from 62% in the hospital controls to 91% in normal controls and the negative predictive value of the neural network ranged from 86% in the thrombosis control group to 95% in the hospital controls. The sensitivity of the neural network was higher than 90% in all control groups. In conclusion, we developed a neural network that accurately diagnoses APS in the validation cohort. After further clinical validation in newly diagnosed patients, this neural network could possibly be clinically implemented to diagnose APS based on thrombin generation data.
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Affiliation(s)
- Romy M W de Laat-Kremers
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, the Netherlands; Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Denis Wahl
- Vascular Medicine Division, CHU de Nancy, Nancy, France
| | | | - Marisa Ninivaggi
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Walid Chayouâ
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands; Department of Biochemistry, CARIM, Maastricht University, Maastricht, the Netherlands
| | | | - Jacek Musial
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jagiellonian University, Krakow, Poland
| | - Philip G de Groot
- Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
| | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium; Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Department of Data Analysis and Artificial Intelligence, Synapse Research Institute, Maastricht, the Netherlands; Department of Functional Coagulation, Synapse Research Institute, Maastricht, the Netherlands
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29
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Ninivaggi M, de Laat-Kremers R, Tripodi A, Wahl D, Zuily S, Dargaud Y, Ten Cate H, Ignjatović V, Devreese KMJ, de Laat B. Recommendations for the measurement of thrombin generation: Communication from the ISTH SSC Subcommittee on Lupus Anticoagulant/Antiphospholipid Antibodies. J Thromb Haemost 2021; 19:1372-1378. [PMID: 33880866 DOI: 10.1111/jth.15287] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/27/2021] [Accepted: 03/02/2021] [Indexed: 01/17/2023]
Abstract
Thrombin generation (TG) assay is an overall assay to assess the functionality of the hemostatic system and may be a useful tool in diagnosing patients with hyper- and hypocoagulability. Lack of standardization in performing the assays contributes largely to poor correlation between assays and study results. The current lack of standardization remains a major issue in the setting of TG, as illustrated in a recent survey of the ISTH/SSC indicating differences in pre-, analytical, and post-analytical factors among users. These factors may considerably affect the between-laboratory reproducibility of results. Based on the results of the survey and a current review of the literature, along with insights and strong consensus of key investigators in the field, we present guidance for measurement of TG in a clinical setting. Recommendations on blood drawing, handling, processing, and sample storage; reagent concentration and source; analytical conditions on dilution of samples and temperature; calibration and replicate testing; calculation and interpretation of results; and reference values are addressed to help in reducing interlaboratory variation. These recommendations aim at harmonization between methods and laboratories to support the application of TG in patient diagnosis and management.
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Affiliation(s)
| | - Romy de Laat-Kremers
- Synapse Research Institute, Maastricht, the Netherlands
- Departments of Internal medicine and Biochemistry, CARIM, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Armando Tripodi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Fondazione Luigi Villa, Milan, Italy
| | - Denis Wahl
- Université de Lorraine, Inserm UMRS 1116 DCAC; and Centre Hospitalier Régional Universitaire de Nancy, Vascular Medicine Division and Regional Competence Centre for Rare Vascular And Systemic Autoimmune Diseases, Nancy, France
| | - Stéphane Zuily
- Université de Lorraine, Inserm UMRS 1116 DCAC; and Centre Hospitalier Régional Universitaire de Nancy, Vascular Medicine Division and Regional Competence Centre for Rare Vascular And Systemic Autoimmune Diseases, Nancy, France
| | - Yesim Dargaud
- Unité d'Hémostase Clinique, Hôpital Cardiologique Louis Pradel, Université Lyon 1, Lyon,, France
| | - Hugo Ten Cate
- Departments of Internal medicine and Biochemistry, CARIM, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Vera Ignjatović
- Department of Paediatrics, Haematology Research, Murdoch Children's Research Institute, The University of Melbourne, Parkville, Australia
| | - Katrien M J Devreese
- Coagulation Laboratory, Department of Laboratory Medicine, Department of Diagnostic Sciences, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Bas de Laat
- Synapse Research Institute, Maastricht, the Netherlands
- Departments of Internal medicine and Biochemistry, CARIM, Maastricht University Medical Center, Maastricht, the Netherlands
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30
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Role of thrombin generation assays in the diagnosis of acute myocarditis and non-ST myocardial infarction. J Thromb Thrombolysis 2021; 50:144-150. [PMID: 31754904 DOI: 10.1007/s11239-019-01996-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Myocarditis and myocardial infarction share a common clinical characteristics despite significant differences in etiology and pathogenesis. Current guidelines recommend using cardiac magnetic resonance imaging (MRI) or endocardial biopsy for a definite diagnosis; however, these guidelines are not fully implemented due to the high cost and low availability. We used a thrombin generation assay and simple blood test to characterize both diseases. We conducted a cross-sectional study from April to December 2018. Patients with initial clinical suspicions of non-ST elevation myocardial infarction (NSTEMI) or myocarditis were eligible. All patients were recruited prior to anticoagulant treatment. Patients in both groups underwent acceptable standard clinical evaluation. Twenty-eight patients were enrolled; 12 patients in the NSTEMI group and 16 in the myocarditis group. Patients in the NSTEMI group were significantly older than those in the myocarditis group (64.25 ± 9.67 vs. 37.94 ± 19.66 years, p < 0.01, respectively) with a higher prevalence of hyperlipidemia, diabetes mellitus, and ischemic heart disease (p < 0.01 for all). There was no difference between the groups regarding INR, PT, aPTT, and serum levels of creatinine, urea, CPK, troponin, and fibrinogen. Endogenous thrombin potential (ETP), which represents the total thrombin concentration in the plasma, was significantly higher in the myocarditis group than in the NSTEMI group (2091.88 ± 336.41 vs. 1860.75 ± 438.02 nM × min, p < 0.03). Myocarditis and myocardial infarction have a different pattern of thrombin generation Thrombogram. The myocarditis group had significantly higher plasma ETP than the NSTEMI group. This finding requires further evaluation to define a numerical threshold, thus avoiding invasive or expensive assessment of myocarditis.
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31
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Wan J, Konings J, de Laat B, Hackeng TM, Roest M. Added Value of Blood Cells in Thrombin Generation Testing. Thromb Haemost 2021; 121:1574-1587. [PMID: 33742437 DOI: 10.1055/a-1450-8300] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The capacity of blood to form thrombin is a critical determinant of coagulability. Plasma thrombin generation (TG), a test that probes the capacity of plasma to form thrombin, has improved our knowledge of the coagulation system and shows promising utility in coagulation management. Although plasma TG gives comprehensive insights into the function of pro- and anticoagulation drivers, it does not measure the role of blood cells in TG. In this literature review, we discuss currently available continuous TG tests that can reflect the involvement of blood cells in coagulation, in particular the fluorogenic assays that allow continuous measurement in platelet-rich plasma and whole blood. We also provide an overview about the influence of blood cells on blood coagulation, with emphasis on the direct influence of blood cells on TG. Platelets accelerate the initiation and velocity of TG by phosphatidylserine exposure, granule content release and surface receptor interaction with coagulation proteins. Erythrocytes are also major providers of phosphatidylserine, and erythrocyte membranes trigger contact activation. Furthermore, leukocytes and cancer cells may be important players in cell-mediated coagulation because, under certain conditions, they express tissue factor, release procoagulant components and can induce platelet activation. We argue that testing TG in the presence of blood cells may be useful to distinguish blood cell-related coagulation disorders. However, it should also be noted that these blood cell-dependent TG assays are not clinically validated. Further standardization and validation studies are needed to explore their clinical usefulness.
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Affiliation(s)
- Jun Wan
- Synapse Research Institute, Maastricht, The Netherlands.,Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Joke Konings
- Synapse Research Institute, Maastricht, The Netherlands.,Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Bas de Laat
- Synapse Research Institute, Maastricht, The Netherlands.,Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Tilman M Hackeng
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Mark Roest
- Synapse Research Institute, Maastricht, The Netherlands.,Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
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Helin TA, Lemponen M, Lassila R, Joutsi-Korhonen L. Anticoagulated patients exhibit intact endogenous thrombin potential using ST Genesia unlike the Calibrated Automated Thrombogram. Res Pract Thromb Haemost 2021; 5:439-446. [PMID: 33870029 PMCID: PMC8035790 DOI: 10.1002/rth2.12497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/31/2020] [Accepted: 01/23/2021] [Indexed: 02/04/2023] Open
Abstract
Background The thrombin generation (TG) assay is a feasible but labor‐intensive method for detecting global coagulation. It enables comprehensive assessment of anticoagulation, while drug‐specific assays assess only exposure. Traditionally, the Calibrated Automated Thrombogram (CAT) has been used, however the ST Genesia (Diagnostica Stago) allows automated evaluation. Objective We aimed to observe coagulation using the ST Genesia and compare the data with those of CAT in anticoagulated patients. Patients and methods In total, 43 frozen‐thawed samples were studied using DrugScreen to assess direct oral anticoagulants (DOACs), warfarin, and low‐molecular‐weight heparin. Twenty samples (nine rivaroxaban, five apixaban, three warfarin, and three heparin) were also compared using CAT (5 pM tissue factor). Results TG reduction in DrugScreen depended on the specific drug and modestly correlated with DOAC levels (lag time R2 = 0.36; peak R2 = 0.50). The best correlation was observed with peak thrombin and rivaroxaban‐specified anti–activated factor X (anti‐Xa) activity (R2 = 0.60). When comparing ST Genesia with CAT, only the results for apixaban concorded (R2 = 0.97). Unlike CAT, ST Genesia yielded a normal endogenous thrombin potential (ETP) in 77% (24/31) activated factor X inhibitor cases, and it failed to give readouts at international normalized ratio (INR) ≥4.5 and at anti‐Xa ≥1.0 IU/mL. Conclusion The ST Genesia data did not correlate with CAT, but it was independently associated with INR, anti‐Xa, and DOAC concentrations. The lag time and peak responses were similar; the major differences were that ST Genesia showed no ETP effect of DOACs and failed to give readout at high INR or anti‐Xa activity.
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Affiliation(s)
- Tuukka A Helin
- Department of Clinical Chemistry HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Marja Lemponen
- Department of Clinical Chemistry HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Riitta Lassila
- Coagulation Disorders Unit Helsinki University Hospital Research Program Unit in Systems Oncology University of Helsinki Helsinki Finland
| | - Lotta Joutsi-Korhonen
- Department of Clinical Chemistry HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital Helsinki Finland
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Assessing Plasmin Generation in Health and Disease. Int J Mol Sci 2021; 22:ijms22052758. [PMID: 33803235 PMCID: PMC7963172 DOI: 10.3390/ijms22052758] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/20/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Fibrinolysis is an important process in hemostasis responsible for dissolving the clot during wound healing. Plasmin is a central enzyme in this process via its capacity to cleave fibrin. The kinetics of plasmin generation (PG) and inhibition during fibrinolysis have been poorly understood until the recent development of assays to quantify these metrics. The assessment of plasmin kinetics allows for the identification of fibrinolytic dysfunction and better understanding of the relationships between abnormal fibrin dissolution and disease pathogenesis. Additionally, direct measurement of the inhibition of PG by antifibrinolytic medications, such as tranexamic acid, can be a useful tool to assess the risks and effectiveness of antifibrinolytic therapy in hemorrhagic diseases. This review provides an overview of available PG assays to directly measure the kinetics of plasmin formation and inhibition in human and mouse plasmas and focuses on their applications in defining the role of plasmin in diseases, including angioedema, hemophilia, rare bleeding disorders, COVID-19, or diet-induced obesity. Moreover, this review introduces the PG assay as a promising clinical and research method to monitor antifibrinolytic medications and screen for genetic or acquired fibrinolytic disorders.
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Marlu R, Naciri Bennani H, Seyve L, Noble J, Chevallier E, Motte L, Imerzoukene F, Bugnazet M, Christophe M, Malvezzi P, Jouve T, Rostaing L. Comparison of three modalities of plasmapheresis on coagulation: Centrifugal, single-membrane filtration, and double-filtration plasmapheresis. J Clin Apher 2021; 36:408-419. [PMID: 33506958 DOI: 10.1002/jca.21879] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Plasmapheresis can deplete pathogenic antibodies and allow ABO- and/or HLA-incompatible transplantation. AIM To determine the impacts of three modalities of plasmapheresis (centrifugal plasmapheresis [cTPE], single-filtration plasmapheresis [mTPE], double-filtration plasmapheresis [DFPP]) on hemostasis parameters and thrombin generation. MATERIALS/METHODS Prospective, comparative study on 21 patients that received three modalities of plasmapheresis (7 patients/group). Hemostasis (prothrombin time [PT], activated partial thromboplastin time [aPTT], procoagulant factors and natural anticoagulants) were measured before and after the first plasmapheresis session. Thrombin generation was also assessed in platelet-poor plasma using an STA-Genesia (Stago) analyzer and Thromboscreen reagents (Stago) in 4-5 patients from each group. RESULTS Both cTPE and mTPE resulted in high decreases in proteins, whatever their molecular weights. Median post/pre ratios were 0.27 to 0.55 for cTPE for most proteins (except FVIII [0.64] and VWF [0.57]). Median post/pre-ratios of mTPE were 0.28 to 0.56 for all proteins. DFPP decreased high-molecular-weight proteins (fibrinogen, FV, FVIII, FXI, VWF) and proteins strongly bound to large molecules (protein SandTFPI). Median post/pre ratios with cTPE and mTPE were similar to DFPP for fibrinogen and FXIII. Regarding thrombin generation, cTPE and mTPE did not significantly modify endogenous thrombin potential (ETP) and DFPP induced a slight decrease in ETP (median post/pre ratio at 0.73) in the absence of thrombomodulin. ETP inhibition by thrombomodulin was decreased for all procedures. CONCLUSIONS DFPP depleted high molecular-weight proteins in contrast to cTPE and mTPE, which significantly decreased all proteins. Regarding thrombin generation, depletion of procoagulant factors was counterbalanced by a decrease in some natural anticoagulants whatever plasmapheresis method used; with all methods, fibrinogen and FXIII were highly depleted.
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Affiliation(s)
- Raphaël Marlu
- Hemostasis Laboratory, CHU Grenoble-Alpes, Grenoble, France.,Therex, TIMC-IMAG, CNRS UMR5525, Grenoble-Alpes, Grenoble, France.,Université Grenoble Alpes, Grenoble, France
| | - Hamza Naciri Bennani
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Landry Seyve
- Hemostasis Laboratory, CHU Grenoble-Alpes, Grenoble, France
| | - Johan Noble
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Eloi Chevallier
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Lionel Motte
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Farida Imerzoukene
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Mathilde Bugnazet
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | | | - Paolo Malvezzi
- Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Thomas Jouve
- Université Grenoble Alpes, Grenoble, France.,Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
| | - Lionel Rostaing
- Université Grenoble Alpes, Grenoble, France.,Service de Néphrologie, Hémodialyse, Aphérèses et Transplantation Rénale, CHU Grenoble-Alpes, Grenoble, France
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He S, Cao H, Thålin C, Svensson J, Blombäck M, Wallén H. The Clotting Trigger Is an Important Determinant for the Coagulation Pathway In Vivo or In Vitro-Inference from Data Review. Semin Thromb Hemost 2020; 47:63-73. [PMID: 33348413 DOI: 10.1055/s-0040-1718888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Blood coagulation comprises a series of enzymatic reactions leading to thrombin generation and fibrin formation. This process is commonly illustrated in a waterfall-like manner, referred to as the coagulation cascade. In vivo, this "cascade" is initiated through the tissue factor (TF) pathway, once subendothelial TF is exposed and bound to coagulation factor VII (FVII) in blood. In vitro, a diminutive concentration of recombinant TF (rTF) is used as a clotting trigger in various global hemostasis assays such as the calibrated automated thrombogram, methods that assess fibrin turbidity and fibrin viscoelasticity tests such as rotational thromboelastometry. These assays aim to mimic in vivo global coagulation, and are useful in assessing hyper-/hypocoagulable disorders or monitoring therapies with hemostatic agents. An excess of rTF, a sufficient amount of negatively charged surfaces, various concentrations of exogenous thrombin, recombinant activated FVII, or recombinant activated FIXa are also used to initiate activation of specific sub-processes of the coagulation cascade in vitro. These approaches offer important information on certain specific coagulation pathways, while alterations in pro-/anticoagulants not participating in these pathways remain undetectable by these methods. Reviewing available data, we sought to enhance our knowledge of how choice of clotting trigger affects the outcome of hemostasis assays, and address the call for further investigations on this topic.
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Affiliation(s)
- Shu He
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.,Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Honglie Cao
- Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Charlotte Thålin
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Jan Svensson
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Margareta Blombäck
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.,Division of Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Håkan Wallén
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
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36
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Mohamed ABO, Al-Ama N, Al Kreathy H, Ahmed KHB, Al Amri T, Harakeh S, Mousa SA, De Laat B. Oral Contraceptive Types in Relation to ABO Blood Groups Among Saudi Women of Different Reproductive Age Groups and Impact on Venous Thromboembolism. Clin Appl Thromb Hemost 2020; 26:1076029620966051. [PMID: 33112684 PMCID: PMC7607804 DOI: 10.1177/1076029620966051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Saudi women have recently started using oral contraceptives (OCs), which has led to risk of venous thromboembolism (VTE). The risk varies with the type of OC generations used, and with OC use the risk for VTE increases by 2- to 6-fold. This study evaluated the effect of OC types in relation to ABO blood group on the risk of VTE among Saudi women. Thrombin generation (TG) was measured in the plasma of the women in the presence and absence of platelet rich plasma, platelet poor plasma and thrombomodulin or activated protein C. OC usage increased TG parameters ETP and Peak height by 9.81% and 16.04%, respectively. An increased risk of VTE was seen among women on third generation OCs as compared to those on second generation products. Within OC generations, we found that for women using fourth generation OCs, their ETP increased by 36.18% as compared to those using second generation and by 6.07% in those using third generation compared to those using second generation. There was significant difference with respect to ABO blood groups and OC generation types, but larger sample size is required. Women who are 40 years and older and using third generation OC had a higher risk of having thrombosis (11.84%), as compared to those using second generation OC (8.79%) and to those using fourth generation OC (5.03%). An association between different OC groups and non-O blood group in thrombosis generation was noted. TG parameters were significantly increased in relation to BMI when comparing to OC users versus non-users. In addition, inhibition of TG parameters in the presence of recombinant human thrombomodulin (TM) and activated protein C (APC) were significantly increased.
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Affiliation(s)
- Abdulrahman B O Mohamed
- Department of Pharmacology, Faculty of Medicine, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia (SA).,Synapse Research Institute, Maastricht, the Netherlands
| | - Nabeel Al-Ama
- Department of Cardiology, Faculty of Medicine, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia
| | - Huda Al Kreathy
- Department of Pharmacology, Faculty of Medicine, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia (SA)
| | - Khalid H B Ahmed
- Department of Clinical Biochemistry, Faculty of Medicine, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia
| | - Turki Al Amri
- Family and Community Medicine Department, Faculty of Medicine in Rabigh, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia
| | - Steve Harakeh
- Special Infectious Agents Unit, King Fahd Medical Research Center, 37848King Abdulaziz University (KAU), Jeddah, Saudi Arabia
| | - Shaker A Mousa
- Pharmaceutical Research Institute, 1091Albany College of Pharmacy and Health Sciences, Rensselaer, NY, USA
| | - Bas De Laat
- Synapse Research Institute, Maastricht, the Netherlands
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The anticoagulant effects of ethyl pyruvate in whole blood samples. PLoS One 2020; 15:e0240541. [PMID: 33035271 PMCID: PMC7546475 DOI: 10.1371/journal.pone.0240541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/28/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Ethyl pyruvate (EP), the ethyl ester of pyruvate, has proven antiinflammatory and antioxidative properties. Additionally, anticoagulant properties have been suggested recently. EP, therefore, is a potentially antiatherosclerotic drug. We aimed to investigate whether EP possesses antiplatelet and anticoagulant properties particularly in the physiological environment of whole blood. METHODS We investigated the effects of increasing concentrations of EP on platelet function, on the course of clot development, and on standard coagulation times. Additionally, clot ultrastructure using scanning electron microscopy was analysed. RESULTS EP exerted significant antiplatelet actions: i) Impedance aggregometry amplitudes (11.7 ± 3.0 ohm, 0 μg/mL EP) dose dependently decreased (7.8 ± 3.1 ohm, 1000 μg/mL EP; -33.3%). ATP exocytosis (0.87 ± 0.24 nM, 0 μg/mL EP) measured by the luminiscent method dose-dependently decreased (0.56 ± 0.14 nM, 1000 μg/mL; -35.6%). ii) Closure times (104.4 ± 23.8 s, 0 μg/mL EP) using the Platelet function analyzer were dose-dependently prolonged (180.5 ± 82.5 s, 1000 μg/mL EP; +72.9%) using membranes coated with collagen/ADP. iii) Surface coverage (15.9 ± 5.1%, 0 μg/mL EP) dose-dependently decreased (9.0 ± 3.7%, 1000 μg/mL EP; -43.4%) using the Cone and Platelet analyzer. EP also exerted significant anticoagulant actions: Coagulation times (177.9 ± 37.8, 0 μg/mL EP) evaluated by means of thrombelastometry were dose-dependently prolonged (212.8 ± 57.7 s, 1000 μg/mL EP; +19.6%). Activated partial thromboplastin times (31.5 ± 1.8 s, 0 μg/mL EP) were dose-dependently prolonged (35.6 ± 2.3 s, 1000 μg/mL EP; +13.0%). Prothrombin times (0.94 ± 0.02 INR, 0 μg/mL EP) were dose-dependently prolonged (1.09 ± 0.04 INR, 1000 μg/mL EP; +16.0%). CONCLUSION We found that EP possesses antiplatelet and anticoagulant properties in whole blood. Together with its proven anti-inflammatory and antioxidative properties, EP is a potentially antiatherogenic drug.
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38
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Characterization of Thrombin Generation Curve Shape in Presence of Platelets from Acute Venous Thromboembolism Patients. J Clin Med 2020; 9:jcm9092892. [PMID: 32906769 PMCID: PMC7563134 DOI: 10.3390/jcm9092892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/10/2020] [Accepted: 09/04/2020] [Indexed: 11/16/2022] Open
Abstract
Background. Anticoagulant therapy, the cornerstone treatment in acute venous thromboembolism (VTE), strongly impacts thrombin generation (TG). Until now, the appearance of the TG curve in platelet rich plasma (PRP) from patients with acute VTE has not been investigated. Methods. We analyzed the shape of TG curves measured in PARP of 180 acute VTE patients. Results. Normal shape of TG curves was observed in 110 patients, 50 patients showed no TG and 20 patients showed biphasic TG curve. The linear regression analysis, adjusted for age, sex, VTE clinical phenotypes and therapy showed that the appearance of biphasic curves is significantly associated with female sex, presence of cancer and therapy with Factor Xa inhibitors. Conclusions. This study demonstrated that despite taking anticoagulants, TG in presence of platelets is still present in the majority of acute VTE patients. Appearance of unusual TG curves is strongly related to the intake of anti-Factor Xa inhibitors. The clinical relevance of biphasic TG curve appearance requires further investigation.
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Elad B, Koren O, slim W, Turgeman Y, Avraham G, Schwartz N, Elias M. Thrombin generation's role in predicting coronary disease severity. PLoS One 2020; 15:e0237024. [PMID: 32764787 PMCID: PMC7413409 DOI: 10.1371/journal.pone.0237024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 07/17/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Thrombin, a key enzyme of the clotting system, is involved in thrombus formation, platelet activation, and atherosclerosis, thereby possessing a central role in the pathogenesis of ischemic heart disease. Studies have shown an association between thrombin generation (TG) and cardiovascular morbidity and mortality, but results have been equivocal. Our aim was to study the predictive ability of TG assay in evaluating coronary stenosis severity. METHODS In this prospective study we recruited patients with acute coronary syndrome (ACS) or acute chest pain (without evidence of myocardial injury) planned for coronary angiography. Thrombin generation was evaluated by Calibrated Automated Thrombogram (CAT) prior to angiography. Primary end points were significant coronary stenosis and the Syntax I score evaluated by coronary angiography. RESULTS From April 2018 through September 2019, we recruited 128 patients. In the primary analysis there was no significant association between TG and significant coronary stenosis nor between TG and syntax I score, however, there was a positive correlation between peak height and troponin peak (Spearman correlation coefficient 0.194, P-value = 0.035). In sub-group analysis, the chest pain group bare no association between TG and coronary stenosis. In unstable angina group there was an association between peak height and significant coronary stenosis (P-value = 0.029), and in non ST-elevation myocardial infarction group, TG values possessed a relatively good predictive ability of significant coronary stenosis (area under the receiver operating characteristic curve of ~65%) and a positive correlation between both lag time and ttpeak with the syntax I score was noticed (Spearman correlation coefficient 0.31, P-value = 0.099 and Spearman correlation coefficient 0.37, P-value = 0.045 respectively). CONCLUSION In patients with acute chest pain, TG values, evaluated by CAT, do not predict severity of coronary stenosis, nor do they possess prognostic value. Yet, in ACS patients, TG may have the ability to predict coronary disease severity.
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Affiliation(s)
- Boaz Elad
- Internal Medicine C, Emek Medical Center, Afula, Israel
- * E-mail:
| | - Ofir Koren
- Heart Institute, Emek Medical Center, Afula, Israel
- Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Wasin slim
- Emergency Department, Emek Medical Center, Afula, Israel
| | - Yoav Turgeman
- Heart Institute, Emek Medical Center, Afula, Israel
- Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gilat Avraham
- Internal Medicine C, Emek Medical Center, Afula, Israel
| | - Naama Schwartz
- School of Public Health, University of Haifa, Haifa, Israel
| | - Mazen Elias
- Internal Medicine C, Emek Medical Center, Afula, Israel
- Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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40
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Wan J, Konings J, Yan Q, Kelchtermans H, Kremers R, de Laat B, Roest M. A novel assay for studying the involvement of blood cells in whole blood thrombin generation. J Thromb Haemost 2020; 18:1291-1301. [PMID: 32108990 PMCID: PMC7317846 DOI: 10.1111/jth.14786] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Fluorogenic thrombin generation (TG) assays are commonly used to determine global coagulation phenotype in plasma. Whole blood (WB)-TG assays reach one step closer to physiology by involving the intrinsic blood cells, but erythrocytes cause variable quenching of the fluorescence signals, hampering its routine application. OBJECTIVE To develop a new assay for continuous WB-TG measurement. METHODS In the new WB-TG assay, the erythrocyte-caused distortion of signal was solved by continuously mixing the sample during the measurement. The assay was validated by evaluating the reproducibility and comparing with the paper-based WB-TG assay. Reconstituted human blood and WB from 119 healthy donors was tested to explore the influences of hematocrit and platelet count on TG. RESULTS This novel WB-TG assay showed good reproducibility while being less affected by contact activation compared with the previous paper-based assay. Reconstitution experiments showed that the lag time of TG was shortened by the addition of platelets but not erythrocytes. Increasing hematocrit strongly augmented the peak thrombin, even in the presence of high platelet counts. The lag time and peak of WB-TG of 119 healthy donors were positively related to erythrocyte count after adjusting for age, sex, and oral contraceptive use with multiple linear regression analyses. The reference range and interindividual variation of WB-TG were determined in the healthy cohort. CONCLUSIONS A novel WB-TG assay was developed, which is a straightforward tool to measure the involvement of platelets and erythrocytes in TG and may assist the research of blood cell-associated coagulation disorders.
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Affiliation(s)
- Jun Wan
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Joke Konings
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Qiuting Yan
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Hilde Kelchtermans
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Romy Kremers
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Bas de Laat
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
| | - Mark Roest
- Synapse Research InstituteMaastrichtThe Netherlands
- Cardiovascular Research Institute MaastrichtMaastricht UniversityMaastrichtThe Netherlands
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41
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Duarte RCF, Rios DRA, Figueiredo EL, Caiaffa JRS, Silveira FR, Lanna R, Alves LCV, Martins GL, Reis HJ, Reis EA, Ferreira CN, Sternick EB, Campos FMF, das Graças Carvalho M. Thrombin Generation and other hemostatic parameters in patients with atrial fibrillation in use of warfarin or rivaroxaban. J Thromb Thrombolysis 2020; 51:47-57. [PMID: 32377955 DOI: 10.1007/s11239-020-02126-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Patients with atrial fibrillation (AF) present hyperactivation of both platelets and coagulation leading to a hypercoagulable state which contributes to an increased risk of thromboembolism. Therefore, one of the main strategies for treatment of AF is prevention of these events through the use of oral anticoagulants (OAC). The aim of this study was to evaluate hemostasis as a whole in patients with non-valvular AF undergoing warfarin or rivaroxaban by thrombin generation test (TGT), in addition to monocyte-platelet aggregates (MPA), glycoprotein IIb/IIIa (GPIIb/IIIa), and platelet (PMP) and endothelium (EMP) microparticles, compared to age and sex matched controls. PT/INR for OAC use was also determined. In patients taking OAC, compared to control group, a decrease in TGT (p = 0.000 for all parameters) were observed. Patients taking warfarin showed to be more hypocoagulable, presenting lower levels of ETP (p = 0.000) and peak (p = 0.002) than patients using rivaroxaban. Patients on warfarin use with INR > 3 had also lower levels of ETP (p = 0.01) and peak (p = 0.006). A decrease in ETP (p = 0.03) and peak (p = 0.02) values was also observed in patients using rivaroxaban with PT > 21.4 s. Patients using warfarin (p = 0.000) and rivaroxaban (p = 0.000) presented lower levels of MPA in relation to control group. It was also observed in patients using warfarin, lower GPIIb/IIIa levels in relation to control group (p = 0.011). Patients taking rivaroxaban (p = 0.003) and warfarin (p = 0.001) had higher PMP levels compared to control group. There was no difference in levels of EMP between the groups (p = 0.0536). The present study reinforces the usefulness of OAC in AF, which decisively contribute to a better management of the disease preventing possible complications.
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Affiliation(s)
- Rita Carolina Figueiredo Duarte
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy - Federal, University of Minas Gerais, Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, 31270-910, Brazil
| | | | | | | | | | | | - Luan Carlos Vieira Alves
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy - Federal, University of Minas Gerais, Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, 31270-910, Brazil
| | - Gabriela Lopes Martins
- Institute of Biological Sciences of Federal, University of Minas Gerais, Belo Horizonte, Brazil
| | - Helton José Reis
- Institute of Biological Sciences of Federal, University of Minas Gerais, Belo Horizonte, Brazil
| | - Edna Afonso Reis
- Institute of Exact Sciences of Federal, University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Fernanda Magalhães Freire Campos
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy - Federal, University of Minas Gerais, Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, 31270-910, Brazil
| | - Maria das Graças Carvalho
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy - Federal, University of Minas Gerais, Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, 31270-910, Brazil.
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Hsu CC, Fu TC, Huang SC, Wang JS. High-intensity interval training recuperates capacity of endogenous thrombin generation in heart failure patients with reduced ejection fraction. Thromb Res 2020; 187:159-165. [PMID: 32004876 DOI: 10.1016/j.thromres.2020.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Consumptive coagulopathy is associated with increased mortality in patients with heart failure (HF). Physical activity influences the risk of major vascular thrombotic events. This study investigates how high-intensity interval training (HIIT) affects the capacity of endogenous thrombin generation (TG) by modulating circulatory procoagulant microparticles (MPs) in HF patients. METHODS Thirty-eight HF patients with reduced ejection fraction (HFrEF) and 38 age- and gender-matched normal counterparts (NC) were recruited into this study. The HFrEF group performed HIIT (3-min intervals at 40% and 80%VO2peak) on a bicycle ergometer for 30 min/day, 3 days/week for 12 weeks, whereas the NC group did not receive any form of intervention. Plasma TG kinetics, procoagulant MPs, coagulation-related factors, and oxidative stress/proinflammatory status were analyzed. RESULTS The HFrEF group exhibited (i) less endogenous thrombin potential (ETP) and TG rate, (ii) lower concentration/activity of tissue factor (TF) and counts of TF-rich MPs derived from blood cells, and (iii) higher vascular endothelial shedding and plasma myeloperoxidase and interleukin-6 concentrations, compared to the NC group did. However, HIIT elevated TG rate and TF concentration/activity in plasma, as well as, TF-rich MP counts derived from blood cells in patients with HFrEF. Moreover, the exercise regimen also decreased vascular endothelial shedding and plasma myeloperoxidase and interleukin-6 concentrations in HFrEF patients. CONCLUSION HFrEF reduces the capacity of endogenous TG in plasma, which is associated with decreased (or consumed) circulatory procoagulant MP levels. However, HIIT alleviates HFrEF-declined endogenous TG capacity and vascular endothelial damage through recuperating TF-related coagulation activity and suppressing oxidative stress/proinflammatory status.
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Affiliation(s)
- Chih-Chin Hsu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Tieh-Cheng Fu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Shu-Chun Huang
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan
| | - Jong-Shyan Wang
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan; Healthy Aging Research Center, Graduate Institute of Rehabilitation Science, Medical College, Chang Gung University, Tao-Yuan, Taiwan; Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan.
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Influence cationic and anionic PAMAM dendrimers of low generation on selected hemostatic parameters in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110605. [PMID: 32228918 DOI: 10.1016/j.msec.2019.110605] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Polyamidoamine (PAMAM) dendrimers are a new class of monodisperse polymers that are used for drug delivery in systemic administrations. The influence of PAMAM dendrimers on components of the blood coagulation system has been extensively studied, but their effect on the activity of the fibrinolysis system has not been studied to date. METHODS The effect of cationic (G1-G3) and anionic (G1.5-G3.5) PAMAM dendrimers on the conformation and function of the main components of the coagulation and fibrinolysis systems was comparatively studied. Changes in overall plasma hemostatic potential, thrombin generation, prothrombin time, thrombin and tPA activities, the fluorescence of fibrinogen and plasminogen, zeta potential, polymerization of fibrinogen, and activation of plasminogen were analyzed to assess coagulofibrinolytic mechanisms of influence of the charge of the dendrimers. RESULTS Cationic dendrimers increased prothrombin time, suppressed thrombin generation in plasma, and changed the conformation and coagulability of fibrinogen, while anionic dendrimers did not have such effects. Anionic dendrimers slightly reduced tPA activity and altered plasminogen conformation much more strongly than the cationic dendrimers. Plasminogen activation by tPA was strongly inhibited by anionic dendrimers and weakly stimulated by cationic dendrimers. All these effects were enhanced with increasing generation and concentration of the dendrimers. CONCLUSIONS PAMAM-NH2 dendrimers inhibit the extrinsic activation pathway of the coagulation system and alter the conformation and function of fibrinogen. PAMAM-COOH dendrimers change the conformation of plasminogen and inhibit its activation by tPA. This study gives new insight into the effect of anionic PAMAM dendrimers on the activity of the fibrinolytic system. For intravenous applications, the antifibrinolytic effect of anionic PAMAM dendrimers of generation ≥G2.5 should be considered.
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Gangloff C, Mingant F, Theron M, Galinat H, Grimault O, Ozier Y, Pichavant-Rafini K. New considerations on pathways involved in acute traumatic coagulopathy: the thrombin generation paradox. World J Emerg Surg 2019; 14:57. [PMID: 31857822 PMCID: PMC6909491 DOI: 10.1186/s13017-019-0276-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/11/2019] [Indexed: 01/24/2023] Open
Abstract
Abstract Background An acute traumatic coagulopathy (ATC) is observed in about one third of severely traumatized patients. This early, specific, and endogenous disorder is triggered by the association of trauma and hemorrhage. The early phase of this condition is characterized by the expression of a bleeding phenotype leading to hemorrhagic shock and the late phase by a prothrombotic profile leading to multiple organ failure. The physiopathology of this phenomenon is still poorly understood. Hypotheses of disseminated intravascular coagulation, activated protein C-mediated fibrinolysis, fibrinogen consumption, and platelet functional impairment were developed by previous authors and continue to be debated. The objective of this study was to observe general hemostasis disorders in case of ATC to confront these hypotheses. Method Four groups of 15 rats were compared: C, control; T, trauma; H, hemorrhage; and TH, trauma and hemorrhage. Blood samples were drawn at baseline and 90 min. Thrombin generation tests, platelet aggregometry, and standard hemostasis tests were performed. Results Significant differences were observed between the baseline and TH groups for aPTT (17.9 ± 0.8 s vs 24.3 ± 1.4 s, p < 0.001, mean ± SEM), MAP (79.7 ± 1.3 mmHg vs 43.8 ± 1.3 mmHg, p < 0.001, mean ± SEM), and hemoglobin (16.5 ± 0.1 g/dL vs 14.1 ± 0.3 g/dL, p < 0.001, mean ± SEM), indicating the presence of an hemorrhagic shock due to ATC. Compared to all other groups, coagulation factor activities were decreased in the TH group, but endogenous thrombin potential was (paradoxically) higher than in group C (312 ± 17 nM/min vs. 228 ± 23 nM/min; p = 0.016; mean ± SEM). We also observed a subtle decrease in platelet count and function in case of ATC and retrieved an inversed linear relationship between fibrinogen concentration and aPTT (intercept, 26.53 ± 3.16; coefficient, − 3.40 ± 1.26; adjusted R2: 0.1878; p = 0.0123). Conclusions The clinical-biological profile that we observed, combining normal thrombin generation, fibrinogen depletion, and a hemorrhagic phenotype, reinforced the hypothesis of activated protein C mediated-fibrinolysis. The key role of fibrinogen, but not of the platelets, was confirmed in this study. The paradoxical preservation of thrombin generation suggests a protective mechanism mediated by rhabdomyolysis in case of major trauma. Based on these results, we propose a new conception concerning the pathophysiology of ATC.
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Affiliation(s)
- Cedric Gangloff
- 1ORPHY Laboratory EA4324, Université de Bretagne Occidentale, Brest, France.,2Department of Emergency Medicine, CHU Pontchaillou, Rennes, France
| | - Fanny Mingant
- Department of Biology and Hemostasis, CHRU Cavale Blanche, Brest, France
| | - Michael Theron
- 1ORPHY Laboratory EA4324, Université de Bretagne Occidentale, Brest, France
| | - Hubert Galinat
- Department of Biology and Hemostasis, CHRU Cavale Blanche, Brest, France
| | - Ollivier Grimault
- 1ORPHY Laboratory EA4324, Université de Bretagne Occidentale, Brest, France.,4Department of Emergency Medicine, Hôpital de la Cavale Blanche, Brest, France
| | - Yves Ozier
- 1ORPHY Laboratory EA4324, Université de Bretagne Occidentale, Brest, France.,5Department of Anaesthesiology, Hôpital de la Cavale Blanche, Brest, France
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Plasma Fibrin Clot Properties Are Unfavorably Altered in Women following Venous Thromboembolism Associated with Combined Hormonal Contraception. DISEASE MARKERS 2019; 2019:4923535. [PMID: 31827635 PMCID: PMC6885764 DOI: 10.1155/2019/4923535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/22/2019] [Indexed: 11/17/2022]
Abstract
The use of hormonal contraception is associated with an increased risk of venous thromboembolism (VTE). Unfavorably altered fibrin clot phenotype has been reported in patients following unprovoked VTE who are at risk of recurrences. It remains unknown whether fibrin clot characteristics in women with contraception-related VTE differ from those in unprovoked VTE. We studied three age-matched groups of women: (1) after contraception-related VTE, (n = 48) (2) after unprovoked VTE (n = 48), and (3) controls (n = 48). Plasma fibrin clot permeability (K s), turbidity of clot formation, efficiency of fibrinolysis using clot lysis time (CLT), and rate of increase in D-dimer during lytic clot degradation (D-Drate), along with thrombin generation and fibrinolysis proteins were determined. Compared with the controls, patients following contraception-related and unprovoked VTE formed faster (lag phase, -8.8% and -20.4%, respectively) fibrin clots of increased density (K s , -8.6% and -13.4%, respectively) displaying impaired fibrinolysis as evidenced by prolonged CLT (+11.5% and +14.5%, respectively) and lower D-Drate (-7.1% and -5.6%, respectively), accompanied with higher plasminogen activator inhibitor-1 (PAI-1, +14.9% and +17.8%, respectively) and elevated peak thrombin generation (+63.8% and +36.7%, respectively). The only differences between women with unprovoked and contraception-related VTE were lower fibrin mass in plasma clots (D-Dmax, -8.6%), along with higher peak thrombin generation (+19.8%) and shorter lag phase (-6.8%) in the latter group. This study suggests that women after contraception-related VTE, similar to those following unprovoked VTE, have denser fibrin clot formation and impaired clot lysis. These findings might imply higher risk of VTE recurrence in women with the prothrombotic clot phenotype.
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Bloemen S, Zwaveling S, Mullier F, Douxfils J. Concomitant assessment of rivaroxaban concentration and its impact on thrombin generation. Thromb Res 2019; 184:8-15. [PMID: 31677449 DOI: 10.1016/j.thromres.2019.09.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/15/2019] [Accepted: 09/17/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Reliable assays to measure direct oral anticoagulant (DOAC) levels and their activity in critical situations are needed. Drug levels alone are not representative of the effect of DOACs on an individual's coagulation. We developed a technique that provides direct assessment of the global effect of rivaroxaban on the individual's coagulation in addition to plasma concentrations. METHODS DOAC concentrations were determined in fifty patients using rivaroxaban, with the new assay, Xross-CAT. The effect of rivaroxaban on coagulation (activity) was measured with thrombin generation (TG) in platelet poor plasma using 5 pM tissue factor on the same device. The levels were validated with the Biophen DiXal assay. The prothrombin time (PT) and dilute Russell viper venom time (dRVVT) were performed to estimate the effect on coagulation. RESULTS The variability of Xross-CAT was below 12%. Xross-CAT correlates well with Biophen DiXaI (rs = 0.885). The bias, determined by Bland-Altman analysis, was 4.9% and the Passing-Bablok equation was y = 1.1x - 2.1. The correlation of plasma levels with TG was moderate (ETP rs = -0.548; Peak rs = -0.559), as for the PT (rs = 0.739) and the dRVVT (rs = 0.692). CONCLUSIONS Xross-CAT shows a good correlation with Biophen DiXaI that was previously confirmed to accurately assess rivaroxaban levels. Bleeding and thrombotic complications are not necessarily associated with drug levels and could be influenced by concomitant risk factors. The main benefit of Xross-CAT is that it can be performed simultaneously with thrombin generation, providing an overview of the global anticoagulation status of a patient in relation to circulating DOAC levels.
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Affiliation(s)
- Saartje Bloemen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands.
| | - Suzanne Zwaveling
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
| | - François Mullier
- Université catholique de Louvain, CHU UCL Namur, Hematology Laboratory, Namur Thrombosis and Hemostasis Center, NARILIS, Yvoir, Belgium
| | - Jonathan Douxfils
- University of Namur, Department of Pharmacy, Namur Research Institute for Life Sciences, Namur Thrombosis and Hemostasis Center, Namur, Belgium; QUALIblood s.a., Namur, Belgium
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Chang S, Biltoft D, Skakkebæk A, Fedder J, Bojesen A, Bor MV, Gravholt CH, Münster AMB. Testosterone treatment and association with thrombin generation and coagulation inhibition in Klinefelter syndrome: A cross-sectional study. Thromb Res 2019; 182:175-181. [DOI: 10.1016/j.thromres.2019.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/01/2019] [Accepted: 08/17/2019] [Indexed: 12/14/2022]
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Yadav VK, Singh PK, Agarwal V, Singh SK. Crosstalk between Platelet and Bacteria: A Therapeutic Prospect. Curr Pharm Des 2019; 25:4041-4052. [PMID: 31553286 DOI: 10.2174/1381612825666190925163347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/13/2019] [Indexed: 12/16/2022]
Abstract
Platelets are typically recognized for their roles in the maintenance of hemostasis and vascular wall repair to reduce blood loss. Beyond hemostasis, platelets also play a critical role in pathophysiological conditions like atherosclerosis, stroke, thrombosis, and infections. During infection, platelets interact directly and indirectly with bacteria through a wide range of cellular and molecular mechanisms. Platelet surface receptors such as GPIbα, FcγRIIA, GPIIbIIIa, and TLRs, etc. facilitate direct interaction with bacterial cells. Besides, the indirect interaction between platelet and bacteria involves host plasma proteins such as von Willebrand Factor (vWF), fibronectin, IgG, and fibrinogen. Bacterial cells induce platelet activation, aggregation, and thrombus formation in the microvasculature. The activated platelets induce the Neutrophil Extracellular Traps (NETs) formation, which further contribute to thrombosis. Thus, platelets are extensively anticipated as vital immune modulator cells during infection, which may further lead to cardiovascular complications. In this review, we cover the interaction mechanisms between platelets and bacteria that may lead to the development of thrombotic disorders. Platelet receptors and other host molecules involved in such interactions can be used to develop new therapeutic strategies to combat against infection-induced cardiovascular complications. In addition, we highlight other receptor and enzyme targets that may further reduce infection-induced platelet activation and various pathological conditions.
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Affiliation(s)
- Vivek K Yadav
- Department of Biotechnology Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Pradeep K Singh
- Department of Biotechnology Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Vishnu Agarwal
- Department of Biotechnology Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Sunil K Singh
- Department of Animal Sciences, Central University of Punjab, Bathinda, Punjab, India
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Mischke R, Teuber M, Tiede A. Measurements of endogenous thrombin potential using the CAT method in cats: Reference values and influence of the direct factor Xa inhibitor apixaban. Res Vet Sci 2019; 127:113-121. [PMID: 31693942 DOI: 10.1016/j.rvsc.2019.08.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 08/13/2019] [Accepted: 08/27/2019] [Indexed: 11/26/2022]
Abstract
The aim of this study was to establish a thrombin generation assay (calibrated automated thrombogram, CAT) in cats by determining the precision (repeatability), reference values, and the sensitivity to anticoagulant treatment with the factor Xa inhibitor apixaban. The CAT method was performed on citrated plasma with different commercial tissue factor (TF) reagents (PPP Reagent 1 pM [LOW], PPP Reagent 5 pM, PPP Reagent 20 pM [HIGH]) according to the manufacturers` test instruction. Measurements in triplicate were performed in platelet poor plasma (PPP) of 58 healthy cats and in 6 cats at different times following the oral administration of 2.5 mg apixaban. The median CVs in healthy cats usually were < 10% with the exception of thrombin peak height measured using PPP Reagent 1 pM (14.6%). Reference values of all parameters showed marked inter-individual variability and depended largely on the TF concentration of the used activating reagent. Thrombin generation was significantly influenced by apixaban and reacted more sensitively than other tests of haemostasis including the prothrombin time, aPTT, and rotational elastometry. In conclusion, thrombin generation measured by the CAT method using commercially available reagents seems suitable for the examination of feline PPP and may be a valuable method to establish effective anticoagulant therapies for the feline patient and monitoring of such therapies in cats.
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Affiliation(s)
- Reinhard Mischke
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, D-30559 Hannover, Germany.
| | - Maike Teuber
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, D-30559 Hannover, Germany
| | - Andreas Tiede
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany.
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Chen P, Jani J, Streiff MB, Zheng G, Kickler TS. Evaluation of Global Hemostatic Assays in Response to Factor VIII Inhibitors. Clin Appl Thromb Hemost 2019; 25:1076029619836171. [PMID: 30880432 PMCID: PMC6714898 DOI: 10.1177/1076029619836171] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Global hemostatic assays including thromboelastography (TEG), Innovance ETP (endogenous
thrombin potential), and Thrombinoscope could measure thrombin generation potential and be
useful to guide management of patients with factor VIII (FVIII) inhibitors. However, the
performance characteristics of these global assays in the presence of FVIII inhibitors are
incompletely characterized. In this study, the normal range of thrombin generation
potential was measured in 20 healthy individuals by all 3 assays. In 5 commercial and 7
clinical samples with FVIII inhibitors, it was shown that PPP-reagent thrombinoscope shows
a dose-dependent response to different levels of FVIII inhibitors from the same patients,
while Innovance ETP shows virtually no response to FVIII inhibitors. The TEG is more
sensitive to FVIII inhibitors than thrombinoscope. Importantly, we show the same levels of
FVIII inhibitor from different patients results in different levels of inhibition for
thrombin generation potential by thrombinoscope, which potentially explains the phenotypic
heterogeneity of patients with FVIII inhibitors. Global assays such as thrombinoscope, but
not Innovance ETP, show appropriate sensitivity to FVIII inhibitors that could offer an
objective and clinically relevant marker to guide patient management.
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Affiliation(s)
- Ping Chen
- 1 Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,2 Department of Hematology, Jinan Central Hospital, Shandong University, Jinan, China
| | - Jayesh Jani
- 1 Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael B Streiff
- 3 Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Gang Zheng
- 1 Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Thomas S Kickler
- 1 Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,3 Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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