Abstract：
:Sulfation of the natural polysaccharide curdlan results in anticoagulantly active beta-1,3-glucan sulfates whose activity depends on various structural parameters. In this study the anticoagulant and antithrombotic effects of one of these beta-1,3-glucan sulfates (GS) were compared with those of a porcine mucosal heparin. GS produced a concentration dependent anticoagulant effect in all the global coagulation assays with the exception of the anti-Xa assay. The best activity was found in the APTT and the thrombin time assays indicating that protease generation and the direct inhibition of thrombin may be sites of actions of this agent. Whereas the anticoagulant activity of GS was approximately 5 fold lower compared to heparin, a 32 fold higher concentration (ED50 = 550 micrograms/kg) was needed for an antithrombotic effect similar to heparin (ED50 = 17.2 micrograms/kg) in a rabbit model of stasis thrombosis. In contrast to this, when a rat model of clamping induced jugular vein occlusion was used to produce vascular obstruction, GS produced similar antithrombotic actions to heparin. At a 250 micrograms/kg dosage, both agents doubled the number of clampings required for complete vascular obstruction. Since the mechanical injury to the blood vessel is the primary determinant of the thrombogenic response, GS may inhibit some of the pathophysiologic mechanisms responsible for the occlusion of the blood vessel. The current study also points to the fact that the global anticoagulant effects may not reflect the antithrombotic potential of newer sulfated carbohydrate derived drugs.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Alban S,Jeske W,Welzel D,Franz G,Fareed Jdoi
10.1016/0049-3848(95)00049-wsubject
Has Abstractpub_date
1995-05-01 00:00:00pages
201-10issue
3eissn
0049-3848issn
1879-2472pii
004938489500049Wjournal_volume
78pub_type
杂志文章abstract：:The thrombolytic efficacy of recombinant tissue-type plasminogen activator (tPA) in the presence and absence of a thromboxane synthase inhibitor was studied in a model of femoral artery thrombosis in the anesthetized rabbit. The thrombus was formed by injection of thrombin and whole blood into an isolated segment of t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90022-9
更新日期：1988-12-01 00:00:00
abstract：:A blinded randomized multicenter trial of two non-activated prothrombin complex concentrates was carried out to determine the clinical effectivity in the treatment of acute hemarthrosis in hemophiliac patients with inhibitors. The one product was prepared via DEAE Sephadex chromatography, while the second was fraction...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0049-3848(86)90115-5
更新日期：1986-06-15 00:00:00
abstract：INTRODUCTION:Rivaroxaban is an oral, selective direct factor Xa inhibitor approved for several indications in patients at risk of thrombotic events. One limitation of its clinical use is the lack of data pertaining to its reversal in situations where urgent response is critical (e.g. acute bleeding events or emergency ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.01.007
更新日期：2015-03-01 00:00:00
abstract：AIM:Mean platelet volume (MPV) in the healthy population has not been studied before. Therefore, the aim of the study was to measure MPV in normal subjects in a large cohort of Turkish adults. METHODS:A total of 2298 subjects with a mean age of 50 (age range 18 to 92) were interviewed. Subjects who had smoking habit, ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.05.007
更新日期：2011-10-01 00:00:00
abstract：INTRODUCTION:Hydrogen sulfide (H2S) known as a gasotransmitter is increasingly recognized for its anti-adhesive, anti-inflammatory and vasoactive properties. Due to these properties, we analysed anti-thrombotic effects of H2S and the participation of the nitric oxide synthase (NOS)-pathway. MATERIALS AND METHODS:In in...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.07.010
更新日期：2013-08-01 00:00:00
abstract：:The association between blood coagulation and cancer growth and metastatic dissemination is not yet completely understood. In this study we demonstrate that thrombin is capable of enhancing tumor cell adhesive properties and thereby increases tumor cell metastatic potential. Following exposure to alpha-thrombin, Walke...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90081-k
更新日期：1992-11-01 00:00:00
abstract：INTRODUCTION:Circulating levels of fibrinogen are associated with atherosclerosis and predict future coronary heart disease and stroke. Levels of fibrinogen are correlated among family members, suggesting a heritable component. Variants of the beta-fibrinogen gene subunit on 4q28 are associated with fibrinogen levels b...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(03)00288-3
更新日期：2003-04-15 00:00:00
abstract：:Binding of 3H-labeled 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine (platelet-activating factor; PAF) to the intact, washed canine platelet has been defined and characterized as being specific and receptor-mediated. Under the conditions described, specific binding to 2 X 10(7) canine platelets reached saturation with...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90339-8
更新日期：1988-06-15 00:00:00
abstract：INTRODUCTION:Clinical trials have provided evidence about efficacy and safety of extended thromboprophylaxis among total hip replacement (THR) patients. There is a lack of evidence on effectiveness and safety of extended treatment in unselected patients from routine clinical practice. We examined the effectiveness and ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.11.029
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:Atherosclerosis occurs as a result of a chronic inflammatory response in the arterial wall associated with an increased uptake of low-density lipoprotein by macrophages and the subsequent transformation of this lipoprotein into foam cells. It has been found that miR-188-3p can suppress autophagy and myocardi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.09.043
更新日期：2018-11-01 00:00:00
abstract：:G-proteins play a major role in cell signaling and specific abnormalities in these proteins have been implicated in some diseases. Although, two human G alpha q coding sequences are published, they differ at functionally important regions. We have sequenced the human G alpha q cDNA synthesized from normal platelet mRN...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(98)00071-1
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND:In the rat liver, growth hormone (GH) affects the synthesis of vitamin-K-dependent factors, including Protein C (prot.C) and protein S (prot.S), two natural anticoagulants that prevent hypercoagulable states. Adults with GH deficiency (GHD) are at risk of thrombotic events. High circulating levels of PAI-1 a...
journal_title：Thrombosis research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.thromres.2010.08.028
更新日期：2010-12-01 00:00:00
abstract：BACKGROUND:Troponin I (cTnI), myoglobin, heart-type fatty acid binding protein (H-FABP), and natriuretic peptides (BNP, NTproBNP) were all reported to be elevated in patients with pulmonary embolism (PE). METHODS:To assess the correlation between the aforementioned markers and helical computed tomography (hCT) right v...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.07.003
更新日期：2008-01-01 00:00:00
abstract：:Heparin-induced thrombocytopenia (HIT) is a transient hypercoagulability state initiated, paradoxically, by the anticoagulant, heparin. It is characterized by antibody-induced activation of platelets, leading to thrombin generation. Many patients with HIT develop thrombosis; even when heparin is stopped because of "is...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(03)00336-0
更新日期：2003-05-01 00:00:00
abstract：:The antithrombotic properties of acetyl salicylic acid (ASA) used at current doses are largely demonstrated. However, our previous study showed unexpected thrombotic potencies associated with the use of this drug. In this study we investigate the effect of aspirin on an experimental thrombosis induced by laser beams, ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(97)00302-2
更新日期：1998-02-01 00:00:00
abstract：:The inability of the heparin-antithrombin complex to inhibit fibrin-bound thrombin limits the utility of heparin for treatment of arterial thrombosis. In contrast with heparin, melagatran, a direct thrombin inhibitor (DTI), is equally effective at inhibiting fluid-phase thrombin and thrombin bound to fibrin. This refl...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(03)00251-2
更新日期：2003-07-15 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：:Despite clear potential benefits of outpatient care, most patients suffering from pulmonary embolism (PE) are currently hospitalized due to the fear of possible adverse events. Nevertheless, some teams have increased or envisage to increase outpatient treatment or early discharge. We performed a narrative systematic r...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2017.05.001
更新日期：2017-07-01 00:00:00
abstract：:Human and bovine alpha-thrombins (greater than 90% alpha form) with high fibrinogen clotting activities (approximately 3,000 U.S. units/mg protein) exhibit similar Michaelis menten kinetics with the p-nitroanilide tripeptide substrates Tos-Gly-Pro-arg-pNA (Chromozym-TH) and D-Phe-Pip-Arg-pNA (S-2238). The kinetic para...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90114-1
更新日期：1982-11-01 00:00:00
abstract：INTRODUCTION:Venous thromboembolism is a common cause of morbidity and mortality. Although cirrhosis has classically been considered as an acquired bleeding diathesis, there is increasing evidence that rejects the traditional belief that these patients are naturally protected against venous thromboembolism. However, an...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.thromres.2013.08.001
更新日期：2013-10-01 00:00:00
abstract：BACKGROUND:Ultrasound has the potential to augment chemical thrombolysis. METHODS AND RESULTS:Thrombotic occlusions in the left circumflex artery (LCx) were induced in 27 dogs. Sixty minutes later, tissue-type plasminogen activator (t-PA) was given intravenously over 90 min. Thrombotic occlusions (n = 20) were treated...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(03)00335-9
更新日期：2003-05-01 00:00:00
abstract：:Sandwich ELISA systems were developed to measure human von Willebrand factor (vWF). In one system the microtitre plates were coated with goat F(ab')2 to vWF. The F(ab')2 different molecular forms in the soluble phase. VWF antigen bound by the F(ab')2 antibody was subsequently determined by using horse-radish peroxidas...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90047-2
更新日期：1986-07-01 00:00:00
abstract：:The protease inhibitor, aprotinin, has been examined for its ability to inhibit urokinase and tissue-type plasminogen activators at pH 7.4 in assays utilizing pyroGlu-Gly-Arg-p-nitroanilide and H-D-Ile-Pro-Arg-p-nitroanilide as substrates, respectively. Aprotinin inhibited both two-chain low molecular weight urokinase...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90252-6
更新日期：1988-03-15 00:00:00
abstract：:It has been suggested that unstable angina at rest, like acute myocardial infarction, might be associated with a thrombotic process. In order to study the hypothesis that myocardial ischemia during exercise could also be associated with an activation of blood coagulation and/or fibrinolysis, we investigated the presen...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90222-v
更新日期：1992-01-01 00:00:00
abstract：:Platelet aggregation, lipoprotein lipase activity, coagulation parameters and routine blood chemistry were measured in a randomised study of 21 surgical patients before, immediately after and 3 months after operation. Sodium heparin 5000 IU was given subcutaneously to 11 patients every 12 hours for 7 days, the first i...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0049-3848(83)90187-1
更新日期：1983-06-01 00:00:00
abstract：:The aim was to describe the phlebographic pattern of asymptomatic and symptomatic deep vein thrombosis (DVT) after total hip replacement by the use of a scoring system in 102 consecutive patients (54 asymptomatic, 48 symptomatic). The DVTs were scored from 1 to 3, and registered in a scoring system dividing the deep v...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00274-7
更新日期：2000-09-01 00:00:00
abstract：:Generally, the rules of good practice in transfusion medicine apply also to the pediatric age group. However, the frequency of specific diseases that might necessitate the administration of fresh frozen plasma (FFP) differs from that in adults. Physiologic differences to the later age exist in the neonatal period and ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(02)00149-4
更新日期：2002-10-31 00:00:00
abstract：:We determined the extent and duration of activation of coagulation during the first 24 hours after carotid endarterectomy. Serial blood samples were collected before, during and after surgery from 10 patients with severe stenosis (> 70%) undergoing carotid endarterectomy with heparinization. Platelet poor plasmas prep...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90257-7
更新日期：1994-08-15 00:00:00
abstract：:It has been suggested that plasma low density lipoprotein (LDL) may affect platelet and leukocyte activity and the release of biologically active eicosanoids which may contribute to the pathogenesis of coronary heart disease. To evaluate the possible biological effects of LDL further we have studied platelet aggregati...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90032-j
更新日期：1993-02-15 00:00:00
abstract：:The changes in the fibrinolytic system of rats induced by repeated injections of tissue plasminogen activator (TPA) have been studied. The euglobulin fraction fibrinolytic activity increases 10 min after the first injection of TPA. Repeated injections of TPA for one or more days do not stimulate the fibrinolytic activ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90075-5
更新日期：1982-08-01 00:00:00
