Abstract：
:Global coagulation assays display variable effects at different concentrations of rivaroxaban. The aim of this study is to quantify the ex vivo effects of low-dose rivaroxaban on thrombophilia screening assays and coagulation factor activities based on the administration time, and to show how to mask possible interferences. Plasma samples from 40 patients receiving rivaroxaban 10 mg daily were investigated to measure activities of clotting factor II, V, VII, VIII, IX, XI, XII and XIII; protein C- and protein S-levels; lupus anticoagulants; anticardiolipin IgG and IgM; D-dimer, heparin-platelet factor 4 (HPF4) antibodies and screening tests for von Willebrand disease (VWD). Two hours after rivaroxaban administration, the activities of clotting factors were significantly decreased to different extents, except for factor XIII. Dilution of plasma samples resulted in neutralisation of these interferences. The chromogenic protein C activity assay was not affected by rivaroxaban. Depending on the timing of tablet intake in relation to blood sampling protein S activity was measured falsely high when a clotting assay was used. False-positive results for lupus anticoagulants were observed depending on the assay system used and the administration time of rivaroxaban. ELISA-based assays such as anticardiolipin IgG and IgM, D-dimer, HPF4-antibodies and the turbidimetric assays for VWD were not affected by rivaroxaban. Specific haemostasis clotting tests should be performed directly prior to rivaroxaban intake. Assay optimisation in the presence of rivaroxaban can be achieved by plasma dilution. Immunologic assays are not influenced by rivaroxaban, while chromogenic assays can be used, when they do not depend on factor Xa.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Mani H,Hesse C,Stratmann G,Lindhoff-Last Edoi
10.1160/TH12-04-0228subject
Has Abstractpub_date
2013-01-01 00:00:00pages
127-36issue
1eissn
0340-6245issn
2567-689Xpii
12-04-0228journal_volume
109pub_type
杂志文章abstract：:A new model of thrombotic challenge, well suited for screening agents and which acts primarily against platelet thromboembolism, has been used to test the in vivo anti-platelet effects of four calcium channel blockers (CCB). An i.v. injection of a mixture of collagen plus epinephrine (15 micrograms and 1.8 micrograms/...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-06-03 00:00:00
abstract：:A genetically-transmissible factor (F) XII-inactivated allele has been produced in mice by targeted replacement of exons 3-8 of the FXII gene with the neomycin resistance gene. Interbreeding of these mice provided offspring homozygous for two inactivated FXII alleles (FXII(-/-)). Male and female FXII-deficient mice br...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH06-03-0128
更新日期：2006-06-01 00:00:00
abstract：:Acute myocardial infarction (AMI) is associated with activation of various cells, including platelets that form monocyte-platelet complexes (MPCs). Here, we analysed MPC in vivo and in vitro and investigated the abilities of different monocyte subclasses to form MPC, the characteristics of the cells involved in MPC fo...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0038-1673342
更新日期：2018-11-01 00:00:00
abstract：:Abnormalities of Hageman factor dependent pathways have been described in a wide variety of human disease states. Congenital deficiencies of factor XII (Hageman trait) prekallikrein (Fletcher trait) and high molecular weight kininogen (Williams, Fitzgerald and Flaujeac traits) although resulting in profound in vitro c...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1977-12-15 00:00:00
abstract：:In order to determine the molecular size of human F VIII as found in fresh plasma and as found in fresh-frozen plasma and in cryoprecipitate and to study the relationship of the factor-related properties, namely F VIII:C, F VIIR:Rcof and F VIIIR:Ag to F VIII, the factor's elution pattern on Sephacryl 1000 was investig...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-08-24 00:00:00
abstract：:Despite reports that Tris [tris (hydroxymethyl)aminomethane] affects platelets, it is often used to buffer suspending media. Human or rabbit platelets were washed and resuspended in Tyrode solution containing apyrase and 0.35% albumin. Addition of 15 mM Tris partially inhibited primary aggregation induced by 10 microM...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-04-30 00:00:00
abstract：:Although it is recognized that glycoprotein (GP) IIb-IIIa complexes are deficient in platelets in Glanzmann's thrombasthenia, little is known of the origin of the defect. We have examined the megakaryocytes in a bone marrow aspirate obtained from a thrombasthenia patient during surgery. Analysis of platelet proteins b...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1986-08-20 00:00:00
abstract：:The contribution of the various components of the contact system in the generation of factor XIIa (FXIIa) and of kallikrein (KRN) on an electronegative surface and the release of the generated enzymes to the bulk phase was examined in mixtures of normal human plasma and plasmas congenitally deficient in these componen...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Myocardial infarction in the young provides a unique model for the investigation of potential interactions between atherosclerotic and prothrombotic risk factors. Because myocardial infarction reflects atherothrombotic disease, it is important to take into account factors related to atherosclerosis when examining prot...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1997-07-01 00:00:00
abstract：:Binding of von Willebrand factor (vWF) to a variety of extracellular matrix (ECM) components and to platelet glycoprotein (GP) Ib-IX-V complex is important in mediating platelet adhesion and aggregation in the early stage of hemostasis. We previously purified a potent antithrombotic protein, named crotalin, functional...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:Primary immune thrombocytopaenia (ITP) is the most common haemorrhagic disease. Although most patients respond initially to mainstream therapies, such as corticosteroids, immunosuppressants or rituximab, a large proportion of patients fail to respond or relapse. These treatments only affect B lymphocytes or short-live...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0038-1669921
更新日期：2018-10-01 00:00:00
abstract：:A preliminary clinical trial was conducted to determine the feasibility of achieving and regulating therapeutic anticoagulation with heparin given by continuous subcutaneous infusion. Five patients with deep venous thrombosis confirmed by impedance plethysmography and/or venography were studied. All patients received ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-02-26 00:00:00
abstract：:Rabbits were injected with a platelet antiserum to examine the role of thrombocytopenia of the precipitation of soluble fibrin by endotoxin.dotoxin. Platelet antiserum removed more than 98% of the circulating platelets, and the resulting thrombocytopenia with platelet counts below 10,000 per mul persisted during the e...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1976-02-29 00:00:00
abstract：:Increased plasma plasminogen activator inhibitor-1 (PAI-1) has been implicated in the development of vascular disease. In type 2 diabetes mellitus high PAI-1 levels are associated with increased plasma concentrations of free fatty acids (FFA) and triacylglycerol indicating an association or a causal relationship. To a...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1160/TH03-07-0457
更新日期：2003-09-01 00:00:00
abstract：:Following the initial report of the clinical use of plasminogen activators (PAs) in cerebrovascular thrombosis in 1958, interest in the efficacy of this approach accelerated only when the need for acute intervention in stroke was recognized. The use of PAs in acute ischemic stroke is based on the observation that appr...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1997-07-01 00:00:00
abstract：:There is much debate over the appropriateness of prescribing prolonged anticoagulation to heterozygous carriers of factor V Leiden suffering a first episode of deep vein thrombosis (DVT). We, thus used meta-analysis to estimate from six eligible studies the summary odds-ratio of recurrent DVT in carriers of factor V L...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-11-01 00:00:00
abstract：:An index patient with pseudohomozygosity for factor V Leiden was identified. Each of his two children inherited a different paternal factor V allele; a daughter was heterozygous for factor V Leiden, with 100% factor V activity, and a son was heterozygous for factor V deficiency, with 50% factor V activity. Genomic DNA...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Vascular injury in acute coronary syndromes (ACS) involves a complex cross-talk between inflammatory mediators, platelets and thrombosis, where the interaction between platelets and coagulation factors (e. g. thrombin) is a central link between thrombosis and inflammation. In ACS, aspirin at antiplatelet doses exhibit...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH15-03-0191
更新日期：2015-08-31 00:00:00
abstract：:The content of free-catecholamines in blood platelets is much higher than in plasma and platelet catecholamines must be taken up from plasma, since platelets lack the enzymes for catecholamine synthesis. There is some evidence that platelet catecholamine content under certain circumstances may be an integrated measure...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1988-10-31 00:00:00
abstract：:Hemorrhagic diathesis was observed in patients with renal insufficiency after carbenicillin at serum levels greater than 300 mug/ml. Normal coagulation factors (F. I, II, V, VII, VIII, X), normal PTT, normal platelet counts, negative ethanol gelation test (fibrin monomers) were found as well as a prolongation of throm...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1976-08-31 00:00:00
abstract：:Sequential treatment of arterial occlusions of the leg with porcine plasmin and low dose streptokinase results in a strong systemic proteolysis as already seen in deep leg vein thrombosis. In 31 of 45 patients the blood flow through major arterial segments could be restored. Thrombolytic success is possible within the...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-10-29 00:00:00
abstract：:We studied human platelet aggregation and beta-TG/PF4 release induced by heparin and related GAGs in vitro both in normal PRP and in PRP after aspirin. In our experimental conditions, heparin and related GAGs always caused PF4 release in vitro from normal platelets, whether or not there was measurable platelet aggrega...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-02-28 00:00:00
abstract：:Atherosclerotic plaques are found at distinct locations in the arterial system, despite the exposure to systemic risk factors of the entire vascular tree. From the study of arterial bifurcation regions, emerges ample evidence that haemodynamics are involved in the local onset and progression of the atherosclerotic dis...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH15-07-0597
更新日期：2016-03-01 00:00:00
abstract：:Site directed mutagenesis was used to construct a t-PA variant that contains an additional glycosylation site in the first kringle domain (T103N) combined with a tetra-alanine substitution in the protease domain (KHRR 296-299 AAAA). This combination variant has a plasma clearance rate that is 4.5-fold slower in rats a...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1993-08-02 00:00:00
abstract：:The in vitro vitamin K-dependent carboxylation of peptide- or protein-bound glutamate residues is generally studied in detergent-solubilized microsomes from rat or cow liver. Under the conditions usually employed, the efficiency of the carboxylation reaction is low (less than 1% of the carboxylatable residues is conve...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-02-03 00:00:00
abstract：:Restenosis following successful percutaneous coronary revascularization continues to represent a major problem limiting the clinical efficacy of this procedure. The underlying mechanisms of restenosis are comprised of a combination of effects from vessel recoil, negative vascular remodeling, thrombus formation and neo...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1999-09-01 00:00:00
abstract：:In this review the interaction between invasive human pathogens expressing plasmin(ogen) receptors and/or producing plasminogen activators with the human plasmin(ogen) system is described. Evidence is presented for multiple mechanisms by which human pathogens can acquire a surface bound form of plasmin that cannot be ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1997-01-01 00:00:00
abstract：:Seasonal variation in venous thromboembolism (VTE) risk in individuals with familial predisposition to VTE has not been explored. This nationwide study aimed to determine whether there are age- and sex-specific seasonal differences in risk of hospitalisation of VTE among individuals with and without a family history o...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH13-04-0320
更新日期：2013-12-01 00:00:00
abstract：:There is increasing concern that some anticoagulants can paradoxically increase thrombogenesis under certain circumstances. Previously, we demonstrated that at certain doses a direct thrombin inhibitor, melagatran, worsens the coagulation status induced by tissue factor (TF) injection in a rat model. We utilised an i...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH11-06-0382
更新日期：2011-12-01 00:00:00
abstract：:We studied the recovery pattern of platelet malondialdehyde (MDA) formation after a single intake of various doses of aspirin (ASA). In normal subjects, there were striking differences in the recovery pattern between large doses (1,000 or 500 mg) and small doses (100 or 50 mg) of oral ASA. The 2 day lag phase was pres...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-08-24 00:00:00
