Abstract：
:The aim of the present study was to evaluate the relative performance of five screening methods for APC resistance caused by the factor V:Q506 mutation: the original method Coatest APC Resistance Chromogenix, a modified method using the same reagents but a predilution 1+4 of the plasma in a factor V deficient plasma from Stago (Stago deficient V) or from Chromogenix (V-DEF Plasma), the Coatest APC Resistance V (Chromogenix), and Accélérimat from bioMérieux. Normalization was done against a pool of normal plasmas for the methods from Chromogenix. The study included 350 subjects, 219 were genotyped (174 FV:R506R, 42 FV:Q506R, 3 FV:Q506Q) and most of them were assessed by more than one method. Uncertainty in predicting the FV genotype was evaluated by statistical analysis, which provided a way to quantitate the performance of the different diagnostic approaches. Performance of each test was evaluated by its sensitivity, specificity, R.O.C. curves, positive and negative likelihood ratios (LR), and the overall performance was determined by two parameters derived from the LR curves : the maximum LR value obtained at the crossover of the two curves, and the distance between the two curves for LR = 10. Coatest APC Resistance V and Accélérimat were proven to be the methods most able to discriminate for factor V:Q506, while normalization was not shown to improve the screening performance. The original method from Chromogenix was confirmed to undergo many influences (factor XII, PAI-1, thrombin-antithrombin complexes, antithrombin III, hematocrit). Although a very good improvement was provided by the newest methods, they were shown to be influenced by protein S and/or factor V levels in the sample plasma.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Freyburger G,Javorschi S,Labrouche S,Bernard Psubject
Has Abstractpub_date
1997-11-01 00:00:00pages
1360-5issue
5eissn
0340-6245issn
2567-689Xjournal_volume
78pub_type
杂志文章abstract：:Acid-treated human plasma is a competitive inhibitor of the hydrolysis of D-Val-Leu-Lys-Nan (S-2251) by plasmin. The rate of hydrolysis is decreased to 50% by 750 fold diluted acidified normal plasma and by 60 fold diluted acidified alpha 2-antiplasmin depleted plasma (alpha 2-antiplasmin concentration less than 2%). ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-12-27 00:00:00
abstract：:The use of warfarin with a range INR of 2.0-3.0 is recommended in prevention of stroke for nonvalvular atrial fibrillation (AF) patients, in particular those older than 75 years. The risk of bleeding that is associated with this range of INR has led to evaluate lower ranges (low-dose or fixed minidose) in terms of ris...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,meta分析
doi：10.1160/TH03-08-0541
更新日期：2004-02-01 00:00:00
abstract：:Plasmin triggers chemotaxis and NF-kappa B- and AP-1-mediated proinflammatory gene expression in human peripheral monocytes (PM). Compared with macrophages and dendritic cells, PM express mainly the peroxisome proliferator-activated receptor (PPAR) gamma and traces of PPAR alpha as detected by semiquantitative RT-PCR ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-08-01 00:00:00
abstract：:The behavior of 125I-labeled recombinant hirudin towards the uninjured and de-endothelialized rabbit aorta wall has been studied in vitro and in vivo to determine its usefulness as an indicator of thrombin activity associated with the aorta wall. Thrombin adsorbed to either sulfopropyl-Sephadex or heparin-Sepharose bo...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：:Recent prospective studies indicate endothelial dysfunction and increased risk for cardiovascular events in patients with serological evidence of multiple infections. Soluble CD14 (sCD 14) plays a key role in the neutralization of lipopolysaccharide (LPS), a well-established bacterial product inducing endothelial dysf...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-12-0831
更新日期：2005-09-01 00:00:00
abstract：:A new immunoadsorbent-amidolytic assay (IAA) for the specific differential detection of two-chain urokinase-type plasminogen activator (tcu-PA) and its single-chain precursor (scu-PA) in cell culture supernatants has been developed. The assay combines the selectivity of immunoassays with the specificity of enzyme acti...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1986-12-15 00:00:00
abstract：:The object was to assess the variability in displayed International Normalised Ratio (INR) between monitors of the same manufacture using whole blood samples from the same subjects. Two brands of monitor, CoaguChek Mini and the TAS PT-NC were tested. 14 instruments of each brand were tested on the same day at the same...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-12-01 00:00:00
abstract：:Components of the fibrinolytic system were studied in samples of plasma from 15 normal, young women and from 11 women taking oral contraceptives containing 30 micrograms ethinyl oestradiol and 150 micrograms levo-norgestrel. Fibrinolytic activity of euglobulins precipitated at pH 5.9 was higher than normal in the horm...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-08-30 00:00:00
abstract：:Hereditary defects of the von Willebrand factor (VWF) gene cause von Willebrand's disease (VWD) which shows great variability dependent on the nature and location of the mutation. We here describe the characteristics of a substitution of methionine for threonine 1156 in the D3 domain of the VWF, i.e. the domain involv...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:Patients with inflammatory bowel disease (IBD) are at higher risk of venous thromboembolism and coronary artery disease despite having a lower burden of traditional risk factors. Platelets from IBD patients release more soluble CD40 ligand (CD40L), and this has been implicated in IBD platelet hyper-activation. We here...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-02-0167
更新日期：2016-08-30 00:00:00
abstract：:In a preliminary study, we have demonstrated that tissue factor (TF) is immunohistochemically stained in monocytes from patients with disseminated intravascular coagulation (DIC) but not from healthy volunteers, and that leukocytes from DIC patients induce enhanced activated factor X (FXa) generation in the presence o...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2003-04-01 00:00:00
abstract：:Recent investigations have revealed the crucial role of von Willebrand factor (vWF) in platelet thrombus formation under flow conditions. The plasma concentrations of vWF were measured together with various hemodynamic and hemostatic parameters in 51 cases of acute myocardial infarction. In 10 randomly selected cases,...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-08-01 00:00:00
abstract：:Undoubtedly, platelets are key elements in the regulation of thrombosis and haemostasis. Along with their primary task to prevent blood loss from injured vessels, platelets have emerged as regulators of a variety of processes in the vasculature. Multiple challenges, from the contact and adhesion to subendothelial matr...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/th07-01-0066
更新日期：2007-05-01 00:00:00
abstract：:In a group of 705 healthy middle-aged men, we have examined the relationship between plasma levels of Factor VII (FVII) c and Factor VII antigen (FVIIag) and two polymorphisms in the FVII gene. One polymorphism alters arginine at position 353 to glutamine (R/Q), and the other is the result of a 10 base pair (bp) inser...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：:The aim of this study was to evaluate the thrombolytic activity of two hybrid plasminogen activators (HPAs) in a rabbit jugular vein thrombosis model. In the two HPAs the kringle-2 domain (K2tu-PA) or the finger and the kringle-2 domains (FK2tu-PA) of tissue-type plasminogen activator (t-PA) are linked to the catalyti...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1992-09-07 00:00:00
abstract：:The tail bleeding time (BT) in rats definitely varies according to the method applied. Of the various variables that may influence BT, we have evaluated the position (horizontal or vertical) of the tail, the environment (air or saline), the temperature (4 degrees, 23 degrees or 37 degrees C) and the type of anaesthesi...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-08-24 00:00:00
abstract：:Catabolism of coagulation factor VIII (FVIII) is mediated by low-density lipoprotein receptor-related protein (LRP). The ligand-binding sites of LRP are formed by complement-type repeats (CR), and CR clusters II and IV bind most of LRP ligands. FVIII contains two major LRP-binding sites located in the A2 and A3 domain...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2007-12-01 00:00:00
abstract：:Interactions between proteins and heparin(-like) structures involve electrostatic forces and structural features. Based on charge distributions in the linear sequence of protein C inhibitor (PCI), two positively charged regions of PCI were proposed as possible candidates for this interaction. The first region, the A+ ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:During treatment with vitamin K antagonists, International Normalized Ratios (INR) are determined periodically to maintain a therapeutic level of anticoagulation. We evaluated two existing methods for therapeutic quality control (linear interpolation and equidivision), with regard to their validity and reproducibility...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1999-10-01 00:00:00
abstract：:Plasminogen activator inhibitor 1 (PAI-1) is the main inhibitor of tissue-type and urokinase-type plasminogen activators (t/uPA) and plays an important role in fibrinolysis. Inhibition of PAI-1 activity prevents thrombosis and accelerates fibrinolysis, indicating that PAI-1 inhibitors may be used as effective antithro...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-11-0891
更新日期：2017-06-28 00:00:00
abstract：:Thrombin incubated with 2,3-diphosphoglycerate (150 nmol 2,3-DPG/1 NIH thrombin unit) lost up to 70% of its clotting activity, whereas the esterase activity remained unchanged. No fibrinopeptide release by thrombin was observed in the presence of 2,3-DPG. The fibrin polymerization was normal. By chromatography on Ambe...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：:Individuals with lupus anticoagulants (LA) are at risk for thromboembolism (TE). Chronic inflammation is an important characteristic in LA patients which may dispose for TE. Platelets play a key role in inflammation and TE. We therefore investigated gene polymorphisms as well as plasma levels of platelet receptors as ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
abstract：:The pharmacokinetics of recombinant tissue factor pathway inhibitor (TFPI) after an intravenous bolus injection was studied in rabbits. Clearance of TFPI was followed by measurement of the radioactivity of the 125I-labelled compound in the whole plasma or the trichloroacetic acid precipitate and by quantitation of the...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1992-07-06 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：:Components of the adaptive immune system, in particular lymphocytes and immunoglobulin, play a major role in advanced atherosclerotic lesions. We sought to determine whether routine, measurements of the relative number of circulating lymphocytes (%L) and gamma-globulin (%G) reflecting immunoglobulin are related to eve...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-07-0449
更新日期：2005-02-01 00:00:00
abstract：:Platelet aggregation and fibrinogen binding in whole blood, induced either by ADP or by a 14 amino acid peptide mimicking an N-terminal region of the platelet thrombin receptor (TRP, thrombin receptor activating peptide), have been studied with blood from different species. Aggregation was assessed by counting the num...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：:Platelets from a patient with an acquired hemorrhagic disorder had a severely impaired response to collagen, whereas platelet aggregation to other agonists and coagulations tests were normal. No abnormalities of the patient's platelet membrane glycoproteins (GP) were seen. Treatment of the patient with immunosuppressi...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1990-08-13 00:00:00
abstract：:Examination of the entire von Willebrand factor (VWF) gene for mutations, particularly in types 1 and 3 von Willebrand disease (VWD) is becoming more widely practised. The sequence of the entire VWF gene will soon be compiled as a single sequence. For these reasons, a clearly defined nomenclature to use for numbering ...
journal_title：Thrombosis and haemostasis
pub_type： 指南,杂志文章
doi：
更新日期：2001-05-01 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：:Recurrent pregnancy loss (PL) is associated with maternal thrombophilia and prophylaxis with low molecular weight heparin (LMWH) can improve pregnancy outcome in this setting. The aim of this study was to investigate the modulation of systemic hemostatic parameters by enoxaparin in women with recurrent PL and to evalu...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH05-03-0212
更新日期：2005-11-01 00:00:00
