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Thrombosis Journal

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https://www.readbyqxmd.com/read/27895532/cd163-macrophage-and-erythrocyte-contents-in-aspirated-deep-vein-thrombus-are-associated-with-the-time-after-onset-a-pilot-study
#1
Eiji Furukoji, Toshihiro Gi, Atsushi Yamashita, Sayaka Moriguchi-Goto, Mio Kojima, Chihiro Sugita, Tatefumi Sakae, Yuichiro Sato, Toshinori Hirai, Yujiro Asada
BACKGROUND: Thrombolytic therapy is effective in selected patients with deep vein thrombosis (DVT). Therefore, identification of a marker that reflects the age of thrombus is of particular concern. This pilot study aimed to identify a marker that reflects the time after onset in human aspirated DVT. METHODS: We histologically and immunohistochemically analyzed 16 aspirated thrombi. The times from onset to aspiration ranged from 5 to 60 days (median of 13 days)...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27822142/non-enzymatic-upregulation-of-tissue-factor-expression-by-gamma-glutamyl-transferase-in-human-peripheral-blood-mononuclear-cells
#2
Valentina Scalise, Cristina Balia, Silvana Cianchetti, Tommaso Neri, Vittoria Carnicelli, Riccardo Zucchi, Maria Franzini, Alessandro Corti, Aldo Paolicchi, Alessandro Celi, Roberto Pedrinelli
BACKGROUND: Besides maintaining intracellular glutathione stores, gamma-glutamyltransferase(GGT) generates reactive oxygen species and activates NFkB, a redox-sensitive transcription factor key in the induction of Tissue Factor (TF) gene expression, the principal initiator of the clotting cascade. Thus, GGT might be involved in TF-mediated coagulation processes, an assumption untested insofar. METHODS: Experiments were run with either equine, enzymatically active GGT or human recombinant (hr) GGT, a wheat germ-derived protein enzymatically inert because of missing post-translational glycosylation...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27799851/low-molecular-weight-heparin-can-benefit-women-with-recurrent-pregnancy-loss-and-sole-protein-s-deficiency-a-historical-control-cohort-study-from-taiwan
#3
Ming-Ching Shen, Wan-Ju Wu, Po-Jen Cheng, Gwo-Chin Ma, Wen-Chu Li, Jui-Der Liou, Cheng-Shyong Chang, Wen-Hsiang Lin, Ming Chen
BACKGROUND: Heritable thrombophilias are assumed important etiologies for recurrent pregnancy loss. Unlike in the Caucasian populations, protein S and protein C deficiencies, instead of Factor V Lieden and Prothrombin mutations, are relatively common in the Han Chinese population. In this study we aimed to investigate the therapeutic effect of low molecular weight heparin upon women with recurrent pregnancy loss and documented protein S deficiency. METHODS: During 2011-2016, 68 women with recurrent pregnancy loss (RPL) and protein S deficiency (both the free antigen and function of protein S were reduced) were initially enrolled...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766066/hemophilia-a-gene-therapy-via-intraosseous-delivery-of-factor-viii-lentiviral-vectors
#4
Carol H Miao
Current treatment of hemophilia A (HemA) patients with repeated infusions of factor VIII (FVIII; abbreviated as F8 in constructs) is costly, inconvenient, and incompletely effective. In addition, approximately 25 % of treated patients develop anti-factor VIII immune responses. Gene therapy that can achieve long-term phenotypic correction without the complication of anti-factor VIII antibody formation is highly desired. Lentiviral vector (LV)-mediated gene transfer into hematopoietic stem cells (HSCs) results in stable integration of FVIII gene into the host genome, leading to persistent therapeutic effect...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766065/thrombopoietin-and-its-receptor-in-normal-and-neoplastic-hematopoiesis
#5
Kenneth Kaushansky
Thrombopoietin was posited to exist in 1958 and cloned in 1994, and in the ensuing two decades we have learned a great deal about the physiology and pathology of the primary regulator of thrombopoiesis. This paper will review the role of the hormone and its receptor, the product of the c-Mpl proto-oncogene, in health and disease, including many unexpected effects in both normal and neoplastic hematopoiesis. Amongst these unexpected properties are a non-redundant effect on hematopoietic stem cells, a critical role in all three of the acquired, chronic myeloproliferative neoplasms, as well as both gain-of-function and loss-of-function mutations in congenital and acquired states of thrombocytopenia and thrombocythemia...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766064/characteristics-of-taiwanese-patients-of-pnh-in-the-international-pnh-registry
#6
Wen-Chien Chou, Wei-Han Huang, Ming-Chung Wang, Chao-Sung Chang, Shih-Peng Yeh, Tzeon-Jye Chiou, Yeu-Chin Chen, Tseng-Hsi Lin, Ming-Ching Shen
BACKGROUND: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare and acquired hematopoietic stem cell disease, with florid clinical presentations. Although this disease has been characterized in the western countries, its clinical and laboratory features in Taiwan have not yet been reported. RESULTS: As a part of an international prospective, non-interventional, observational registration trial of PNH, we have analyzed 63 patients recruited between 2009 and 2015 in Taiwan, with comparison to the 3857 patients in the rest of the world (ROW)...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766063/aspirin-plus-tirofiban-inhibit-the-thrombosis-induced-by-russell-s-viper-venom
#7
Ren-Chieh Wu, Ping-Tse Chou, Li-Kuang Chen
BACKGROUND: Thrombosis and coagulopathy are the commonest hematological manifestations of envenomation of Russell's viper venom (RVV). Factor X is activated by a factor X-activating enzyme from Russell's viper venom (RVV-X) to start the coagulation cascade. We established an animal model with local ischemic effects induced by RVV. We tried to treat RVV envenomation with antiplatelets and anticoagulants without recourse to antivenom. METHODS: RVV was injected into the foot pad of mice...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766062/de-novo-mutation-and-somatic-mosaicism-of-gene-mutation-in-type-2a-2b-and-2m-vwd
#8
Ming-Ching Shen, Ming Chen, Gwo-Chin Ma, Shun-Ping Chang, Ching-Yeh Lin, Bo-Do Lin, Han-Ni Hsieh
BACKGROUND: Von Willebrand disease (VWD) is not uncommon in Taiwan. In type 2 or type 3 VWD hemorrhagic symptoms are severer and laboratory data relatively more distinctive. De novo mutation and somatic mosaicism of type 2 VWD gene were rarely reported. Therefore clinical, laboratory and genetic studies of only type 2A, 2B and 2M VWD will be presented and issues of de novo mutation and somatic mosaicism will be explored. METHODS: Fifty-four patients belonging to 23 unrelated families from all around the country in whom type 2 VWD exclusive of type 2N has been diagnosed not only by clinical and routine laboratory studies but also by genetic confirmation during 1990-2015 were investigated...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766061/extravascular-fix-and-coagulation
#9
Darrel W Stafford
This review summarizes the evidence that collagen IV binding is physiologically important, and that the extravascular compartment of FIX is composed of type IV collagen. As we have previously demonstrated, 7 days post-infusion, FIXWT (BeneFIX) is able to control bleeding as well as the same dosage of Alprolix in hemophilia B mice, tested using the saphenous vein bleeding model (Alprolix is a chimeric FIX molecule joined at its C terminus to a Fc domain). Furthermore, we have shown that in hemophilia B mice, doses of BeneFIX or Alprolix (up to a dose of 150 IU/kg) have increased bleeding-control effectiveness in proportion to the dose up to a certain limit: higher doses are no more effective than the 150 IU/kg dose...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766060/comorbidities-of-cardiovascular-disease-and-cancer-in-hemophilia-patients
#10
Jiaan-Der Wang
As life expectancy greatly increases in persons with hemophilia (PWH), more age-related diseases such as cancer and cardiovascular disease (CVD) emerge among this patient group. The aim of this study was to review the available evidence on the epidemiology of CVD events, and incidence and survival of cancer in PWH. The prevalence of CVD events among PWH seems to be similar to that of the general population. Some known risk factors for the event, including aging, hypertension, and hyperlipidemia, are also associated with its occurrence in PWH...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766059/preimplantation-genetic-diagnosis-of-hemophilia-a
#11
Ming Chen, Shun-Ping Chang, Gwo-Chin Ma, Wen-Hsian Lin, Hsin-Fu Chen, Shee-Uan Chen, Horng-Der Tsai, Feng-Po Tsai, Ming-Ching Shen
Preimplantation genetic diagnosis (PGD) is a powerful tool to tackle the transmission of monogenic inherited disorders in families carrying the diseases from generation to generation. It currently remains a challenging task, despite PGD having been developed over 25 years ago. The major difficulty is it does not have an easy and general formula for all mutations. Different gene locus needs individualized, customized design to make the diagnosis accurate enough to be applied on PGD, in which the quantity of DNA is scanty, whereas timely laboratory diagnosis is mandatory if fresh embryo transfer is desired occasionally...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766058/individualized-prophylaxis-for-optimizing-hemophilia-care-can-we-apply-this-to-both-developed-and-developing-nations
#12
Man-Chiu Poon, Adrienne Lee
Prophylaxis is considered optimal care for hemophilia patients to prevent bleeding and to preserve joint function thereby improving quality of life (QoL). The evidence for prophylaxis is irrefutable and is the standard of care in developed nations. Prophylaxis can be further individualized to improve outcomes and cost effectiveness. Individualization is best accomplished taking into account the bleeding phenotype, physical activity/lifestyle, joint status, and pharmacokinetic handling of specific clotting factor concentrates, all of which vary among individuals...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766057/different-impact-of-factor-viii-products-on-inhibitor-development
#13
H Marijke van den Berg
Inhibitors are the most serious side effect of haemophilia treatment; they occur in 25-30 % of all patients with severe haemophilia A. Over the last 2 decades, conflicting data on the impact of clotting products have been published. Due to small studies of selected cases, appreciation of the impact of any particular product has been difficult. Moreover, the emphasis on inhibitor testing has led to increased detection of low-titre inhibitors (to >10 %), while the percentage of high-titre inhibitors is still around 20 %...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766056/aspects-of-prophylactic-treatment-of-hemophilia
#14
Rolf Ljung
Retrospective and prospective studies unambiguously show that prophylactic treatment of severe hemophilia A or B should be started as primary prophylaxis at 1-2 years' of age and ideally before the first joint bleed. The dose and dose frequency should be individually tailored depending on the goal of treatment, venous access and the bleeding phenotype. The circumstances during the first exposures of factor VIII concentrates in hemophilia A may have an impact on the risk of developing inhibitors. Enhanced half-life products, in particular in hemophilia B, will facilitate treatment in patients with difficult venous access but also in achieving a higher trough level...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766055/platelets-and-platelet-adhesion-molecules-novel-mechanisms-of-thrombosis-and-anti-thrombotic-therapies
#15
REVIEW
Xiaohong Ruby Xu, Naadiya Carrim, Miguel Antonio Dias Neves, Thomas McKeown, Tyler W Stratton, Rodrigo Matos Pinto Coelho, Xi Lei, Pingguo Chen, Jianhua Xu, Xiangrong Dai, Benjamin Xiaoyi Li, Heyu Ni
Platelets are central mediators of thrombosis and hemostasis. At the site of vascular injury, platelet accumulation (i.e. adhesion and aggregation) constitutes the first wave of hemostasis. Blood coagulation, initiated by the coagulation cascades, is the second wave of thrombin generation and enhance phosphatidylserine exposure, can markedly potentiate cell-based thrombin generation and enhance blood coagulation. Recently, deposition of plasma fibronectin and other proteins onto the injured vessel wall has been identified as a new "protein wave of hemostasis" that occurs prior to platelet accumulation (i...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766054/the-adaptor-protein-disabled-2-new-insights-into-platelet-biology-and-integrin-signaling
#16
Hui-Ju Tsai, Ching-Ping Tseng
Multiple functions of platelets in various physiological and pathological conditions have prompted considerable attention on understanding how platelets are generated and activated. Of the adaptor proteins that are expressed in megakaryocytes and platelets, Disabled-2 (Dab2) has been demonstrated in the past decades as a key regulator of platelet signaling. Dab2 has two alternative splicing isoforms p82 and p59. However, the mode of Dab2's action remains to be clearly defined. In this review, we highlight the current understanding of Dab2 expression and function in megakaryocytic differentiation, platelet activation and integrin signaling...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766053/new-horizon-in-platelet-function-with-special-reference-to-a-recently-found-molecule-clec-2
#17
Yukio Ozaki, Shogo Tamura, Katsue Suzuki-Inoue
Platelets play a key role in the pathophysiological processes of hemostasis and thrombus formation. However, platelet functions beyond thrombosis and hemostasis have been increasingly identified in recent years. A large body of evidence now exists which suggests that platelets also play a key role in inflammation, immunity, malignancy, and furthermore in organ development and regeneration, such as the liver. We have recently identified CLEC-2 on the platelet membrane, which induces intracellular activation signals upon interaction of a snake venom, rhodocytin...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766052/cancer-associated-thrombosis-in-asia
#18
Pantep Angchaisuksiri
Thrombosis is a common complication in cancer patients. Although the major inherited risk factors for thrombophilia are different between Asians and Caucasians, the main acquired risk factors that are associated with the development of venous thromboembolism (VTE) in Asians appear to be similar to those for Caucasians. Malignancy is the most important acquired risk factor for VTE in Asians. Recent studies have shown that the incidence of VTE is significant in Asian patients with cancer, particularly those in an advanced stage...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766051/thrombophilia-in-east-asian-countries-are-there-any-genetic-differences-in-these-countries
#19
Toshiyuki Miyata, Keiko Maruyama, Fumiaki Banno, Reiko Neki
In recent years, genetic analyses of congenital deficiencies of three anticoagulant proteins, antithrombin, protein C (PC) and protein S (PS), in East Asian patients with venous thromboembolism (VTE) have greatly increased. The PS-K196E mutation is often identified in the Japanese population with an allelic frequency of 0.86 %, and a total of approximately 10,000 Japanese are estimated to be homozygotes. The heterozygotes show PS anticoagulant activities ranging from 40 to 110 %, and 16 % lower mean anticoagulant activity than that in wild-type individuals...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27766050/causes-of-venous-thrombosis
#20
F R Rosendaal
Venous thrombosis which mainly manifests as deep vein thrombosis of the leg or pulmonary embolism occurs in 1 per 1000 per year. It occurs due to interacting genetic, environmental and behavioral risk factors. The strongest risk factors are certain types of surgery and malignancies. Over the last decade many new risk factors for venous thrombosis have been identified. Venous thrombosis has a high recurrence rate, of around 5 % per year. Whereas clinically it would be most important to identify patients at risk of recurrence, only male sex and a previous unprovoked thrombosis are established determinants of recurrent thrombosis...
2016: Thrombosis Journal
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