Filtered By:
Source: Blood
Condition: Bleeding
This page shows you your search results in order of relevance.
Order by Relevance | Date
Total 47 results found since Jan 2013.
Plasma L5 levels are elevated in ischemic stroke patients and enhance platelet aggregation
L5, the most electronegative and atherogenic subfraction of low-density lipoprotein (LDL), induces platelet activation. We hypothesized that plasma L5 levels are increased in acute ischemic stroke patients and examined whether lectin-like oxidized LDL receptor-1 (LOX-1), the receptor for L5 on endothelial cells and platelets, plays a critical role in stroke. Because amyloid β (Aβ) stimulates platelet aggregation, we studied whether L5 and Aβ function synergistically to induce prothrombotic pathways leading to stroke. Levels of plasma L5, serum Aβ, and platelet LOX-1 expression were significantly higher ...
Source: Blood - March 10, 2016 Category: Hematology Authors: Shen, M.-Y., Chen, F.-Y., Hsu, J.-F., Fu, R.-H., Chang, C.-M., Chang, C.-T., Liu, C.-H., Wu, J.-R., Lee, A.-S., Chan, H.-C., Sheu, J.-R., Lin, S.-Z., Shyu, W.-C., Sawamura, T., Chang, K.-C., Hsu, C. Y., Chen, C.-H. Tags: Free Research Articles, Platelets and Thrombopoiesis, Thrombosis and Hemostasis Source Type: research
Stroke in a Pediatric Immune Thrombocytopenia Case
Conclusion: Stroke in the immune thrombocytopenic clinic is a rare but hard to manage condition. Although its mechanism not understand well, the clinician should be identify and manage it carefully.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Leblebisatan, G., Cil, M., Sasmaz, H. I., Kilinc, Y., Soyupak, S. Tags: 311. Disorders of Platelet Number or Function Source Type: research
Innovative thrombolytic strategy using a heterodimer diabody against TAFI and PAI-1 in mouse models of thrombosis and stroke
In conclusion, administration of a bispecific inhibitor against TAFI and PAI-1 results in a prominent profibrinolytic effect in mice without increased bleeding.
Source: Blood - February 19, 2015 Category: Hematology Authors: Wyseure, T., Rubio, M., Denorme, F., Martinez de Lizarrondo, S., Peeters, M., Gils, A., De Meyer, S. F., Vivien, D., Declerck, P. J. Tags: Thrombosis and Hemostasis Source Type: research
Platelet-derived VWF is not essential for normal thrombosis and hemostasis but fosters ischemic stroke injury in mice
Von Willebrand factor (VWF) is a key hemostatic protein synthesized in both endothelial cells and megakaryocytes. Megakaryocyte-derived VWF is stored in α-granules of platelets and is enriched in hyperactive "ultra-large" VWF multimers. To elucidate the specific contribution of platelet VWF in hemostasis and thrombosis, we performed crossed bone marrow transplantations between C57BL/6J and Vwf–/– mice to generate chimeric mice. Chimeric mice specifically lacking platelet VWF showed normal tail bleeding and carotid artery thrombosis, similar to wild-type mice. Chimeric mice with VWF present only in platele...
Source: Blood - October 1, 2015 Category: Hematology Authors: Verhenne, S., Denorme, F., Libbrecht, S., Vandenbulcke, A., Pareyn, I., Deckmyn, H., Lambrecht, A., Nieswandt, B., Kleinschnitz, C., Vanhoorelbeke, K., De Meyer, S. F. Tags: Platelets and Thrombopoiesis, Thrombosis and Hemostasis Source Type: research
Incidence of Bleeding in Patients with Sickle Cell Disease: A Population Based Study
Conclusion:The findings from our study indicate that SCD patients have a high cumulative incidence of bleeding. While the increased incidence of intracranial, urological, and retinal bleeding has been previously described and are confirmed here, we present the novel finding that SCD patients also have a high incidence of GI bleeding, the majority of which are from an upper GI source. The association of hemorrhagic stroke with a history of ischemic stroke is also confirmed. The association of bleeding with VTE is likely due, at least in part, to anticoagulation. Further studies on the causes and risk factors for GI bleeding...
Source: Blood - November 21, 2018 Category: Hematology Authors: Hariharan, N., Brunson, A. M., Keegan, T. H. M., Wun, T. Tags: 114. Hemoglobinopathies, Excluding Thalassemia-Clinical: Organ Damage and Clinical Complications in Sickle Cell Disease Source Type: research
Activated protein C, protease activated receptor 1, and neuroprotection
Protein C is a plasma serine protease zymogen whose active form, activated protein C (APC), exerts potent anticoagulant activity. In addition to its antithrombotic role as a plasma protease, pharmacologic APC is a pleiotropic protease that activates diverse homeostatic cell signaling pathways via multiple receptors on many cells. Engineering of APC by site-directed mutagenesis provided a signaling selective APC mutant with 3 Lys residues replaced by 3 Ala residues, 3K3A-APC, that lacks >90% anticoagulant activity but retains normal cell signaling activities. This 3K3A-APC mutant exerts multiple potent neuroprotective ac...
Source: Blood - July 12, 2018 Category: Hematology Authors: Griffin, J. H., Zlokovic, B. V., Mosnier, L. O. Tags: Thrombosis and Hemostasis, Vascular Biology, Review Articles, Review Series Source Type: research
Direct Oral Anticoagulants and Mortality in Atrial Fibrillation
ConclusionsIn this cohort of newly diagnosed NVAF patients treated in routine clinical practice, DOAC therapy was associated with a lower risk for death compared to no oral anticoagulation. Our findings provide further evidence for the importance of DOAC therapy in NVAF patients.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Ellis, M., Ruslan, S., Ariel, H., Greenberg-Dotan, S., Battat, E., Hamburger-Avnery, O., Greenberg, D., Ronen, A. Tags: 332. Antithrombotic Therapy Source Type: research
Real World Experience of Direct Oral Anticoagulants with Comparison of Safety Outcomes to the Warfarin Era of Venous Thromboembolism Treatment
Conclusion:This retrospective audit shows that our local safety outcomes are comparable to clinical trials. Low dose anticoagulation and high falls risk (a surrogate marker of frailty) were significant risk factors for both clinically significant bleeding and thrombotic stroke in the DOAC population. These patients are likely frailer with greater co-morbidities and have shared risk factors for bleeding and stroke, suggesting that for these high risk patients, low dose anticoagulation does not negate their risk of complications and careful prescribing and close monitoring remain essential.The sub-comparison between VTE pati...
Source: Blood - November 21, 2018 Category: Hematology Authors: Brook, R., Aswapanyawongse, N., Lim, H. Y., Ho, P. Tags: 331. Pathophysiology of Thrombosis: Poster II Source Type: research
Indications, Efficacy and Complications of Kcentra Use in Reversing Coagulopathy
ConclusionsKcentra was used in several off-label clinical settings, with comparable mortality among the coumadin, rivaroxaban and apixaban groups and no identifiable benefit in the setting of cirrhosis, DIC or antiplatelet medications, but with an increased incidence of deep vein thrombosis and stroke.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Sritharan, N., Triulzi, D. Tags: 401. Basic Science and Clinical Practice in Blood Transfusion: Poster III Source Type: research
Activated protein C {beta}-glycoform promotes enhanced noncanonical PAR1 proteolysis and superior resistance to ischemic injury
In this study, a recombinant APC variant (APCN329Q) mimicking the naturally occurring APC-β plasma glycoform was found to exhibit superior PAR1 proteolysis at a cleavage site that selectively mediates cytoprotective signaling. APCN329Q also enhanced integrin αMβ2-dependent PAR1 proteolysis to exert significantly improved antiinflammatory activity on macrophages compared with wild-type APC. Recent therapeutic applications of recombinant APC in ischemic stroke models have used APC variants with limited anticoagulant activity to negate potential bleeding side effects. Using a mouse model of ischemic stroke and...
Source: Blood - August 13, 2015 Category: Hematology Authors: Gleeson, E. M., Dichiara, M. G., Salicio, A., Quinn, L. M., Drakeford, C., Russell, S. E., Walsh, P. T., Orbe, J., Hermida, J., Smith, O. P., O'Donnell, J. S., Montes, R., Preston, R. J. S. Tags: Thrombosis and Hemostasis, Brief Reports Source Type: research
NOAC Therapy Is Also Effective and Safe in Patients Older Than 80 Years -- Results of the Prospective Dresden NOAC Registry (NCT01588119)
Conclusions: During long-term FU of more than 2.5 years, this very old population of NOAC recipients demonstrated low rates of cardiovascular or major bleeding complications during active NOAC therapy. Approximately one quarter of the study population died during follow-up, with cardiovascular events being the leading cause of death. Only 11 fatal bleeding events were observed; however, most of the 58 fatal thromboembolic events occurred after anticoagulation was discontinued. This indicates that continued anticoagulation with NOACs may result in a beneficial risk-benefit ratio also in very old patients.DisclosuresBeyer-We...
Source: Blood - November 21, 2018 Category: Hematology Authors: Beyer-Westendorf, J., Tittl, L., Naue, C., Marten, S. Tags: 332. Antithrombotic Therapy: Management of Challenging Patients and Scenarios Source Type: research
Efficacy and Safety of Direct Oral Factor Xa Inhibitors in 795 Morbidly Obese Patients
Conclusions: Our study is the largest study examining morbidly obese patients on DOACS and provides further evidence of comparable efficacy and safety of the direct oral anti-Xa inhibitors, compared to warfarin, in morbidly obese patients with AF and VTE.DisclosuresKushnir: Janssen: Research Funding. Billett: Bayer: Consultancy; Janssen: Research Funding.
Source: Blood - November 21, 2018 Category: Hematology Authors: Kushnir, M., Choi, Y., Eisenberg, R., Rao, D., Tolu, S., Gao, J., Mowrey, W., Billett, H. H. Tags: 332. Antithrombotic Therapy: Management of Challenging Patients and Scenarios Source Type: research
Rates, management, and outcome of rivaroxaban bleeding in daily care: results from the Dresden NOAC registry
Worldwide, rivaroxaban is increasingly used for stroke prevention in atrial fibrillation and treatment of venous thromboembolism, but little is known about rivaroxaban-related bleeding complications in daily care. Using data from a prospective, noninterventional oral anticoagulation registry of daily care patients (Dresden NOAC registry), we analyzed rates, management, and outcome of rivaroxaban-related bleeding. Between October 1, 2011, and December 31, 2013, 1776 rivaroxaban patients were enrolled. So far, 762 patients (42.9%) reported 1082 bleeding events during/within 3 days after last intake of rivaroxaban (58.9% mino...
Source: Blood - August 7, 2014 Category: Hematology Authors: Beyer-Westendorf, J., Forster, K., Pannach, S., Ebertz, F., Gelbricht, V., Thieme, C., Michalski, F., Kohler, C., Werth, S., Sahin, K., Tittl, L., Hansel, U., Weiss, N. Tags: Free Research Articles, Thrombosis and Hemostasis, Clinical Trials and Observations Source Type: research
Management and clinical outcomes in patients treated with apixaban vs warfarin undergoing procedures
Using data from ARISTOTLE, we describe the periprocedural management of anticoagulation and rates of subsequent clinical outcomes among patients chronically anticoagulated with warfarin or apixaban. We recorded whether (and for how long) anticoagulant therapy was interrupted preprocedure, whether bridging therapy was used, and the proportion of patients who experienced important clinical outcomes during the 30 days postprocedure. Of 10 674 procedures performed during follow-up in 5924 patients, 9260 were included in this analysis. Anticoagulant treatment was not interrupted preprocedure 37.5% of the time. During the 30 day...
Source: Blood - December 11, 2014 Category: Hematology Authors: Garcia, D., Alexander, J. H., Wallentin, L., Wojdyla, D. M., Thomas, L., Hanna, M., Al-Khatib, S. M., Dorian, P., Ansell, J., Commerford, P., Flaker, G., Lanas, F., Vinereanu, D., Xavier, D., Hylek, E. M., Held, C., Verheugt, F. W. A., Granger, C. B., Lop Tags: Free Research Articles, Thrombosis and Hemostasis, Clinical Trials and Observations Source Type: research
Double Blind Randomized Control Trial of Postoperative Low Molecular Weight Heparin Bridging Therapy for Patients Who Are at High Risk for Arterial Thromboembolism (PERIOP 2)
ConclusionsIn patients with atrial fibrillation and/or mechanical heart valves who had warfarin interrupted for a procedure there was no benefit from post-procedure LMWH bridging.DisclosuresKovacs: Bayer: Research Funding; Daiichi Sankyo Pharma Development: Research Funding. Wells: Janssen: Honoraria; Sanofi: Honoraria; BMS: Honoraria, Research Funding; Bayer: Honoraria. Schulman: Boehringer-Ingelheim: Honoraria, Research Funding; Daiichi-Sankyo: Honoraria; Sanofi: Honoraria; Bayer: Honoraria.
Source: Blood - November 21, 2018 Category: Hematology Authors: Kovacs, M. J., Rodger, M., Wells, P. S., Bates, S. M., Kearon, C., Blostein, M., Lazo-Langner, A., Kahn, S., Schulman, S., Sabri, E., Solymoss, S., Ramsay, T., Pallaveshi, L., Anderson, D. Tags: 332. Antithrombotic Therapy: Management of Challenging Patients and Scenarios Source Type: research
