{"title":"Thrombin Generation Assay to Support Hematologists in the Era of New Hemophilia Therapies.","authors":"Laurie Josset, Hamdi Rezigue, Yesim Dargaud","doi":"10.1111/ijlh.14406","DOIUrl":"https://doi.org/10.1111/ijlh.14406","url":null,"abstract":"<p><p>Hematology laboratories have traditionally monitored hemophilia replacement therapy by measuring coagulation factors before and after infusion. However, new drugs that do not rely on the replacement of the deficient factor require new approaches to laboratory monitoring, as factor VIII (FVIII) or factor IX (FIX) assays are no longer adequate. Non-factor therapies come in many different forms, that have one thing in common: they all increase thrombin generation. Their main adverse effect is thrombosis which may occur when too much thrombin is formed. This is the perfect mirror image of anticoagulant treatment, which always diminishes the amount of thrombin formed and has bleeding as its main adverse effect. Thrombin-forming capacity is decreased in congenital bleeding disorders and increased in prothrombotic conditions, indicating it governs bleeding and thrombosis. Therefore, the thrombin generation assay (TGA) is a logical tool for monitoring non-factor therapies, offering a comprehensive assessment of hemostatic balance. TGA identifies patients with severe bleeding, helps to optimize bypassing therapy, and detects hypercoagulability, making it ideal for guiding and monitoring hemophilia treatment with non-factor therapies. It also assesses the efficacy and safety of combined therapies, including non-factor therapies with bypassing agents or FVIII/FIX concentrates. The purpose of this paper is to review the current state of knowledge regarding the use of TGA to monitor novel hemophilia therapies. It will address controversies, limitations, and knowledge gaps related to the integration of TGA into personalized medicine in routine clinical practice.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H Mansouritorghabeh, A Monard, F Heubel-Moenen, J Leentjens, A Stroobants, Y Henskens
{"title":"The Utility of Total Thrombus-Formation Analysis System (T-TAS) in the Thrombosis and Hemostasis Field: A Scoping Review.","authors":"H Mansouritorghabeh, A Monard, F Heubel-Moenen, J Leentjens, A Stroobants, Y Henskens","doi":"10.1111/ijlh.14403","DOIUrl":"https://doi.org/10.1111/ijlh.14403","url":null,"abstract":"<p><strong>Background: </strong>A wide variety of laboratory hemostasis tests is available, but the majority is plasma-based, static and unable to assess platelet function and fibrin formation simultaneously. The Total Thrombus-Formation Analysis System (T-TAS) is a microchip-based flow chamber system that simulates in vivo conditions for evaluating whole blood thrombogenicity.</p><p><strong>Aim: </strong>A comprehensive overview of its applicability in different thrombosis and hemostasis related clinical situations is lacking and therefore this scoping review was performed.</p><p><strong>Materials & methods: </strong>A literature search was done using the electronic databases PubMed, Scopus and Embase on January 7, 2024. Original studies assessing the usefulness of the T-TAS in thrombosis and hemostasis related clinical situations were eligible for this scoping review.</p><p><strong>Results: </strong>A total of 28 studies were included; six studies investigating the role of the T-TAS in congenital bleeding disorders, five studies using the T-TAS to assess 1-year bleeding risk in patients on antiplatelet or anticoagulant medications, four studies investigating the effects of thrombocytopenia and hemodialysis on thrombus formation as measured by the T-TAS, 11 studies testing the applicability of the T-TAS in the monitoring of anticoagulant and antiplatelet therapies and eventually two studies on the ability of the T-TAS to assess the thrombogenicity in different disease entities.</p><p><strong>Discussion & conclusion: </strong>The T-TAS method is an interesting technology that mimics the complex biological coagulation process using shear forces, creating a \"blood vessel component on a chip\". More research is needed, but it could eventually function as a screening test for platelet function and coagulation. Moreover, it could be used to detect the presence of anticoagulant and/or antiplatelet medication.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ludovic Firrera, Benjamin Podvin, Julien Herlem, Marion Magierowicz, Alexandre Willaume, Vincent Thibaud, Agnès Charpentier
{"title":"A New Diagnostic Approach for Myelodysplastic Neoplasms Using a Combination of Scores Based on Flow Cytometry and Automated Hematology Sysmex XN Analyzers.","authors":"Ludovic Firrera, Benjamin Podvin, Julien Herlem, Marion Magierowicz, Alexandre Willaume, Vincent Thibaud, Agnès Charpentier","doi":"10.1111/ijlh.14404","DOIUrl":"https://doi.org/10.1111/ijlh.14404","url":null,"abstract":"<p><strong>Introduction: </strong>The first-step in diagnosis of myelodysplastic neoplasms (MDS) is essentially based on bone marrow cytomorphology. However, cytomorphology of MDS is often a difficult exercise, subject to inter-operator variability. Our study aims to evaluate whether the combination of two dysplasia scores, the extended Ogata score and the MDS-CBC score, could improve the screening of MDS patients among patients with chronic cytopenia.</p><p><strong>Methods: </strong>Extended Ogata score and MDS-CBC score have been measured on a retrospective cohort of 63 patients with a clinical suspicion of MDS based on the presence of cytopenia. Among these patients, 33 patients were diagnosed as MDS (MDS group) and 30 patients were diagnosed with another cause of cytopenia (non-MDS cytopenic control group).</p><p><strong>Results: </strong>Our results show excellent performance of the combined scores in predicting MDS when the two scores are concordant: positive predictive value (PPV) = 96% and negative predictive value (NPV) = 92%. In comparison, in the same cohort, extended Ogata score alone showed a PPV = 90% and NPV = 79%, MDS-CBC score alone showed a PPV = 85% and NPV = 86%.</p><p><strong>Conclusion: </strong>For the first time, our results show that the combination of these two dysplasia scores constitutes a useful and rapid tool for the assessment of dysplasia associated with MDS. In the MDS diagnostic process, the use of combined scores could constitute a valuable tool to enable early strong prediction of MDS in cytopenic patients and to target patients who initially require additional genetic assays.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Homood Alharbi, Mohammad Ahmad, Zhong Cui, Dong Meng, Ying Xin, Xues Yan
{"title":"Identification of Potential Biomarkers and Pathways in Acute Myeloid Leukemia: Correlation Between the Calcineurin Signaling Pathway and Vascular Brittleness in Acute Myeloid Leukemia.","authors":"Homood Alharbi, Mohammad Ahmad, Zhong Cui, Dong Meng, Ying Xin, Xues Yan","doi":"10.1111/ijlh.14410","DOIUrl":"https://doi.org/10.1111/ijlh.14410","url":null,"abstract":"<p><strong>Objective: </strong>In this study, clinical bioinformatics analysis was used to identify potential biomarkers of acute myeloid leukemia (AML) occurrence and development, drug resistance, and poor prognosis to provide a theoretical basis for the treatment of AML.</p><p><strong>Methods: </strong>On the basis of the TCGA, GEO, and GTEx databases, an AML secondary database was established, and differential expression analysis and WGCNA were carried out to identify genes related to the prognosis of AML patients. Survival analysis was carried out for internal verification of key genes, and GEO data were used for external verification to obtain core genes related to prognosis. For differentially expressed genes, the EpiMed platform independently developed by the team was used for drug prediction.</p><p><strong>Results: </strong>A total of 36 overlapping genes were obtained via difference analysis and WGCNA. Enrichment analysis revealed that the overlapping genes were associated with neutrophil activation, transcription dysregulation, AML, apoptosis, and other biological indicators. A protein interaction network was constructed for NCOA4, ACSL4, DPP4, ATL1, MT1G, ALOX15, and SLC7A11, which are key genes. Survival analysis revealed that NCOA4, ACSL4, DPP4, and ATL1 significantly affected the survival of patients with AML. The GSE142698 dataset verified that MPO, BCL2A1, and STMN1 had a statistically significant impact on the survival of AML patients.</p><p><strong>Conclusion: </strong>NCOA4, ACSL4, DPP4, and ATL1 may be potential biomarkers related to the survival and prognosis of patients with AML, and the calcineurin signaling pathway is associated with the risk of vascular fragility in AML patients, which can provide a reference for further research and optimization of treatment regimens.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alan Cano-Méndez, Gabriel Espinosa, Nallely García-Larragoiti, Pedro Antonio Maciel-García, Jorge Luis Menchaca-Arredondo, Young Chan-Kim, Arturo Reyes-Sandoval, Martha Eva Viveros-Sandoval
{"title":"Platelet Reactivity to Zika and Dengue Non-Structural Protein 1 (NS1) Assessed by Flow Cytometry, Atomic Force Microscopy, and Quartz Crystal Microbalance.","authors":"Alan Cano-Méndez, Gabriel Espinosa, Nallely García-Larragoiti, Pedro Antonio Maciel-García, Jorge Luis Menchaca-Arredondo, Young Chan-Kim, Arturo Reyes-Sandoval, Martha Eva Viveros-Sandoval","doi":"10.1111/ijlh.14409","DOIUrl":"https://doi.org/10.1111/ijlh.14409","url":null,"abstract":"<p><strong>Background: </strong>Platelets, besides being traditionally associated with hemostasis, have been recently positioned as immune cells. Alterations in platelet number and function have been reported in some viral infections. Zika virus (ZIKV) and Dengue virus (DENV) are arboviruses that encode for a non-structural protein 1 (NS1). NS1 is mainly involved in the viral replication process and can also be secreted by infected cells and has been associated with immune response evasion. The assessment of platelet reactivity against these viral agents and their proteins, through the use of different innovative technologies such as flow cytometry (FC), atomic force microscopy (AFM), and quartz crystal microbalance (QCM), will allow further study of the pathophysiology of these emerging diseases.</p><p><strong>Aim: </strong>The aim of this study was to assess platelet reactivity to ZIKV and DENV NS1 protein through the use of FC, AFM, and QCM.</p><p><strong>Methods: </strong>Platelet-rich plasma (PRP) was stimulated with ZIKV and DENV NS1 protein in individual assays. The expression of P-selectin and the activity of the glycoprotein IIb-IIIa, platelet activation markers, were assessed by FC, morphological changes were assessed by AFM, and interaction between NS1 protein and platelet were evaluated by QCM.</p><p><strong>Results: </strong>An increased expression of P-selectin and GP IIb-IIIa activity (p < 0.001) was observed when PRP was stimulated with ZIKV and DENV NS1 proteins. AFM images showed an increase in cell size and the appearance of pseudopods upon stimulation with the viral proteins. QCM results showed a significant increase in the oscillation frequency of the quartz precoated with ZIKV or DENV NS1 when PRP was injected (p < 0.001).</p><p><strong>Conclusion: </strong>FC, AFM, and QCM are techniques that can be used in the study of platelet response to viral structures such as NS1 protein, broadening the range of existing methodologies in the study of these cells. It is imperative to study platelets in arboviral infections to better understand their involvement in these diseases.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Post-Induction Bone Marrow Necrosis With Carbapenem-Resistant Enterobacteriaceae in a Case of B-Acute Lymphoblastic Leukemia.","authors":"Prerna Arora, Deepika Yadav, Jasmita Dass, Mukul Aggarwal, Vishwanath Singh Yadav, Arti Kapil","doi":"10.1111/ijlh.14407","DOIUrl":"https://doi.org/10.1111/ijlh.14407","url":null,"abstract":"","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142782249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chen Gong, Hai Jiang, Yang Su, Jing Yang, Yuan Wei, Rui Qiao, Yangyu Zhao
{"title":"Changes in Fibrinogen and D-Dimer During Complicated and Uncomplicated Pregnancy.","authors":"Chen Gong, Hai Jiang, Yang Su, Jing Yang, Yuan Wei, Rui Qiao, Yangyu Zhao","doi":"10.1111/ijlh.14382","DOIUrl":"https://doi.org/10.1111/ijlh.14382","url":null,"abstract":"<p><strong>Introduction: </strong>The increase in fibrinogen levels is vital for the formation of a prothrombotic state during gestation to counter-bleeding challenges at delivery. However, pregnancy complications characterized by systemic inflammatory response syndrome may consume fibrinogen, resulting in elevated D-dimer levels.</p><p><strong>Methods: </strong>Our study is based on a total of 16 768 pregnant women who delivered between December 1, 2013, and December 1, 2018, to study fibrinogen and D-dimer changes during gestation under normal and multiples of pathogenic states.</p><p><strong>Result: </strong>Compared with nonpregnant women (3.04[3.02-3.08]), pregnant women depicted higher fibrinogen levels throughout gestation (p < 0.001). In the uncomplicated group, fibrinogen levels increased throughout the first (3.28[3.26-3.29]), second (4.04[4.01-4.07]), and third trimesters (4.40[4.38-4.41]) but dropped at delivery (4.30[4.28-4.31]), similar to the changing pattern of the pregnancy-related complication group and pre-existing disorder group. Women with pregnancy-related complications showed significantly higher mean fibrinogen levels throughout gestation (p < 0.001), except for placental abruption, where, it decreased from the third trimester and was lower than that of uncomplicated pregnancies (3.89[3.60-4.17] vs. 4.40 [4.38-4.41], p = 0.001). Among uncomplicated pregnancies, D-dimer grew rapidly throughout the first trimester (0.09[0.06-0.15]), second trimester (0.28[0.19-0.40]), third trimester (0.51[0.36-0.78]), and delivery (0.70[0.47-1.03]).</p><p><strong>Conclusion: </strong>Women with pregnancy-related complications and pre-existing disorders shared similar changing patterns; however, the D-dimer of women with placenta accreta presented higher levels than those with uncomplicated pregnancies since the first trimester. We concluded that fibrinogen levels are expected to increase steadily, but in patients with placental abruption, fibrinogen levels dropped during the third trimester. D-dimer levels typically rise consistently throughout pregnancy, yet in patients with placenta accreta, they show abnormal elevation since an early stage of pregnancy.</p>","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142735419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elsa Bera, Liana Veresezan, Maïssa Souissi, Fanny Drieux, Pierre Lebreton, Victor Bobée
{"title":"Relapse of Monomorphic Epitheliotropic Intestinal T-Cell Lymphoma (MEITL) in a Pericardial Fluid.","authors":"Elsa Bera, Liana Veresezan, Maïssa Souissi, Fanny Drieux, Pierre Lebreton, Victor Bobée","doi":"10.1111/ijlh.14398","DOIUrl":"https://doi.org/10.1111/ijlh.14398","url":null,"abstract":"","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differential Diagnosis of Lymphocytosis in Routine Laboratory Practice: Contribution of Lymphocyte Parameters Generated by the New Sysmex XR-1000 Hematology Analyzer.","authors":"Radu Chiriac, Laurent Jallades, Lucile Baseggio","doi":"10.1111/ijlh.14405","DOIUrl":"https://doi.org/10.1111/ijlh.14405","url":null,"abstract":"","PeriodicalId":94050,"journal":{"name":"International journal of laboratory hematology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}