Abstract：
INTRODUCTION:Von Willebrand Disease (VWD) is the most common inherited bleeding disorder. Measurement of von Willebrand factor (VWF) activity in plasma is often based on platelet agglutination stimulated by the ristocetin cofactor activity. Novel assays, based on latex beads with recombinant glycoprotein Ib instead of platelets, have recently been developed but it is unclear whether these can improve the diagnostic capability for VWD. AIM:To compare four automated VWF activity methods in a mixed population of patients referred for evaluation of bleeding tendency. METHODS:The analytical performances of three ristocetin and one non-ristocetin cofactor activity assays were compared in 170 consecutive plasma samples from patients referred for VWD evaluation. RESULTS:All methods correlated well with concordance correlation coefficients ranging from 0.90-0.95. However, when comparing the VWF activity/antigen ratios in samples classified as having VWD (activity <0.4 IU/mL) the number of samples below a ratio of 0.7 differed between 16 and 8%. CONCLUSION:Despite overall correlation between assays we found that differences in classification power might interfere with the interpretation of individual samples.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Timm A,Hillarp A,Philips M,Goetze JPdoi
10.1016/j.thromres.2015.01.027subject
Has Abstractpub_date
2015-04-01 00:00:00pages
684-91issue
4eissn
0049-3848issn
1879-2472pii
S0049-3848(15)00045-6journal_volume
135pub_type
杂志文章abstract：BACKGROUND:The Clauss fibrinogen method and thrombin clotting time (TCT) are still routinely used in patients with cirrhosis to define fibrinogen concentration and clotting potential. The thromboelastometric functional fibrinogen FIBTEM assay evaluates the strength of fibrin-based clots in whole blood, providing inform...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.04.003
更新日期：2015-06-01 00:00:00
abstract：:Dextran sulfate and polybrene were immobilized on polypropylene tubes with plastic adhesive. Serum albumin was also immobilized on the tube by heat-denaturation. In the those tubes thrombin was protected from inactivation in the presence of 0.1 M NaCl remarkably. Cholesterol coated on the tube also protected the enzym...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90277-0
更新日期：1988-07-01 00:00:00
abstract：:Intra-ventricular hemorrhage (IVH) occurs predominantly in very low birth weight premature infants. Survivors of severe IVH frequently experience long-term consequences including major neurological deficits. Advances in neonatal and obstetric care in the last decades, have led to a steady decline in mortality and in t...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(11)70032-9
更新日期：2011-02-01 00:00:00
abstract：:Effects of vascular constriction on thrombotic occlusion was evaluated using rat mesenteric arteries and video-recording system attached to the microscope. Topical application of norepinephrine of 1, 10 and 100 micrograms/ml reduced the arterial diameter dose dependently from 297 +/- 41 mu to 166 +/- 50, 87 +/- 18 and...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90178-7
更新日期：1986-10-01 00:00:00
abstract：:Heparin is known to exert its antithrombotic effects by accelerating the effect of antithrombin (AT) and by mobilizing tissue factor pathway inhibitor (TFPI) into the circulation from vascular endothelium. Heparin treatment has been reported to decrease FVIIa activity by 40%; this was suggested as a new antithrombotic...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00343-1
更新日期：2000-12-01 00:00:00
abstract：:Acutely ill medical patients are at moderate to high risk of venous thromboembolism (VTE): approximately 10-30% of general medical patients may develop deep-vein thrombosis or pulmonary embolism, and the latter is a leading contributor to deaths in hospital. Medical conditions associated with a high risk of VTE includ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(10)70008-6
更新日期：2010-04-01 00:00:00
abstract：INTRODUCTION:The standard dabigatran etexilate dosage for prevention of venous thromboembolism (VTE) after elective total hip or knee replacement (THR/TKR) is 220mg once daily (qd), with 150mg qd for patients with moderate renal impairment. As clinical trial experience in patients with moderate renal impairment was lim...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/j.thromres.2016.05.014
更新日期：2016-07-01 00:00:00
abstract：:Platelet adherence and aggregation are important in the development of ischemic sequelae in atherosclerosis. To directly examine platelet interaction with plaque, everted, deendothelialized aortic fibrous plaques from Watanabe-heritable hyperlipidemic rabbits were exposed to flowing human blood in an annular perfusion...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90040-6
更新日期：1989-04-15 00:00:00
abstract：INTRODUCTION:Prediction of venous thromboembolism (VTE) occurrence in cancer patients using individual risk factors may contribute to preventing the burden of disease associated with VTE. Congestive heart failure in patients with cancer may increase the risk of VTE and worsen the prognosis. AIM:We sought to investigat...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/S0049-3848(16)30134-7
更新日期：2016-04-01 00:00:00
abstract：:The effect of the vasopressin analogue DDAVP on Factor VIII in plasma has been extensively studied in humans. To examine the effect of new and potentially better analogues a suitable animal model has to be established. In the present study trained Beagle dogs were injected with DDAVP and the time course of the Factor ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90363-x
更新日期：1987-09-01 00:00:00
abstract：:This study evaluates the role of neutrophil granulocytes in mediating acute phase stimulation of fibrinogen synthesis. Turpentine was administered to neutropenic and non-neutropenic rats and fibrinogen synthetic rates measured in an isolated liver perfusion system. Using the (14C) carbonate technique for the measureme...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90032-9
更新日期：1982-10-01 00:00:00
abstract：INTRODUCTION:Dermatan sulfate, a sulfated glycosaminoglycan, acts as an anticoagulant by accelerating the inhibition of thrombin by heparin cofactor II. MATERIALS AND METHODS:A low molecular mass dermatan sulfate was obtained by peroxy-radical depolymerization from a parent dermatan sulfate. Chemical characterization ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.09.001
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Ambient particulate matter (PM) is associated with cardiovascular morbidity and mortality. It has been proposed that PM induces a pro-thrombotic process, increasing the risk of cardiovascular events, with some support from epidemiological and laboratory-based models. Diesel exhaust is a major contributor to ...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2007.01.005
更新日期：2007-01-01 00:00:00
abstract：:Bovine myelin basic protein (BP) induced a shape change and endogenous phosphorylation of a 45,000 (45K) molecular weight protein of intact human platelets. This effect occurred rapidly over an effective concentration range of 5-100 microM BP. BP peptides encompassing residues 1-42, 43-88, and 89-169 from the BP molec...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90090-1
更新日期：1982-03-15 00:00:00
abstract：:In order to choose the proper method for evaluating the antithrombin activity in samples of chitosan polysulphate (CP) with different polymerization degrees and sulphation degrees, we estimated the ability of direct anticoagulants to depress the coagulability of recalcified sheep blood using the third international he...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00266-3
更新日期：2001-06-01 00:00:00
abstract：:Aggregation responses of platelet-rich plasma (PRP) from monocrotaline pyrrole (MCTP)-treated rats were examined to help elucidate the role of platelets in MCTP-induced pulmonary hypertension. PRP from rats treated one or four days earlier with MCTP (5 mg/kg, i.v.) or vehicle exhibited the same slope and maximum aggre...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90168-8
更新日期：1983-11-01 00:00:00
abstract：:Preanalytical and biological variability both have strong influences on test results of coagulation. Beyond age and gender, increasing emphasis is now being given to a variety of demographic and lifestyle variables, including ethnicity, smoking, diet, and exercise, which should be taken into account when interpreting ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2008.04.010
更新日期：2008-01-01 00:00:00
abstract：:Anticoagulant fucoidan fractions of different molecular weight and sulfate content were prepared and investigated for their effects on platelet function in vitro. The fucoidan fractions were incubated with human platelet rich plasma (PRP) at concentrations of 5, 10 and 50 micrograms/ml. Platelet activation was subsequ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(97)00037-6
更新日期：1997-03-15 00:00:00
abstract：BACKGROUND:Histamine is classified as an inflammatory mediator and has been reported to have anti- as well as pro-inflammatory properties. The aim of this study was to explore the role of histamine on the production of LPS-induced tissue factor (TF) activity and TNFα in monocytes of whole blood in the absence and prese...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.12.022
更新日期：2014-03-01 00:00:00
abstract：:The behavior of hemostatic system activation during protracted physical exercise is well known, but the duration of its modification is not yet defined. In order to evaluate the time of hemostatic system activation after prolonged strenuous endurance physical exercise (typical marathon race: 42.195 km, v=15.35 km/h; m...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(97)00293-4
更新日期：1998-01-15 00:00:00
abstract：:In a prospective clinical trial the risk of infection after application of virus inactivated antithrombin III concentrate ANTITHROMBIN III IMMUNO (AT III) was investigated in patients undergoing cardiovascular surgery. The study was conducted according to the recommendations of the International Committee on Thrombosi...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/0049-3848(92)90107-l
更新日期：1992-03-15 00:00:00
abstract：:The susceptibility of von Willebrand factor /vWF/ to digestion by human neutrophil cathepsin G in highly purified FVIII/vWF concentrate /BHS/ and in cryoprecipitate has been studied. In contrast to human neutrophil elastase, cathepsin G inactivates and degrades vWF not only in BHS but also in cryoprecipitate. Fibrinog...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90657-i
更新日期：1991-02-15 00:00:00
abstract：BACKGROUND:The diagnostic work-up for heparin induced thrombocytopenia (HIT) can take several days. Consequently patients may be speculatively switched onto replacement anticoagulant therapy before a diagnosis is confirmed. On-demand immunoassay diagnostic testing enables timely treatment decisions, based on test resul...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.01.025
更新日期：2016-04-01 00:00:00
abstract：:In-vitro determinations of purified kallikrein on the one hand, of human plasma and whole blood prekallikrein on the other hand have been conducted with the S-2648 electrogenic substrate using the electroanalytical technique. Plasmatic evaluations have been checked photometrically for assessing the reliability of the ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90195-6
更新日期：1984-12-15 00:00:00
abstract：:Endothelial cells in biopsied blood vessels from von Willebrand factor (vWf)-deficient Doberman pinscher dogs contain immunologically detectable vWf. These dogs and normal dogs were treated with DDAVP (0.6 microgram/kg) and epinephrine (0.5 microgram/kg/min for 30 minutes) and were exercised, using 5 different exercis...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90198-l
更新日期：1990-01-01 00:00:00
abstract：:The thrombin inhibitory role of antithrombin III (ATIII) and heparin cofactor II (HCII) was studied in vitro using intact and injured rabbit aortae. When intact vessels were loaded with thrombin and then exposed to either heat defibrinogenated human plasma (HDHP) or ATIII the same degree of thrombin inhibition was ach...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90014-n
更新日期：1991-06-01 00:00:00
abstract：:The proteinase, brinase (Mr approximately 35000), from Aspergillus oryzae, which has been used in therapeutic attempts as a thrombolytic agent in arterial thrombosis, binds to purified human alpha 2-macroglobulin (alpha 2M) with a stoichiometry of 1.7-1.9 mol of enzyme/mol inhibitor. This binding leads to quantitative...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90359-3
更新日期：1988-01-01 00:00:00
abstract：:In this study we examined in 100 patients testing positive for Helicobacter pylori infection whether successful eradication therapy with pantoprazole, clarithromycin, and metronidazole alters fibrinogen and other acute phase response markers. Of 100 patients, only 11 showed a fibrinogen level above 300 mg/dL. Successf...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00230-3
更新日期：2000-03-15 00:00:00
abstract：INTRODUCTION:Following the Fontan procedure, children require lifelong anticoagulant therapy to minimise the risk of thrombosis. Factors influencing the management of warfarin therapy in children post-Fontan procedure are poorly understood. This study investigated factors affecting warfarin therapy stability and time t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.01.018
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:Clinical and epidemiological studies have associated selective COX-2 inhibitors with an increased risk of cardiovascular events. There are no clinical studies on the possible effects of these drugs on secondary hemostasis. The hypothesis for this study is that the use of selective COX-2 inhibitors could affe...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.thromres.2009.01.017
更新日期：2009-06-01 00:00:00
