Abstract：
:Echolucent carotid plaques are associated with higher risk for future ischemic cerebrovascular events (CVE) than echogenic plaques independent of the degree of stenosis. Elevated markers of thrombin generation are associated with atherosclerotic plaques and are increased in the acute and chronic phases of CVE. The present study was conducted to investigate the influence of plaque morphology on thrombin generation in persons with carotid stenosis. One hundred twenty-eight persons with carotid stenosis (>or=35% lumen diameter reduction) and 136 matched controls without stenosis were recruited from the health survey of the Tromsø Study. Blood samples were collected and plaque morphology determined by ultrasonography. Thrombin generation was assessed by thrombin-antithrombin complexes (TAT) and by prothrombin fragment 1+2 (F1+2). Persons with echogenic plaques (n = 63) had significantly higher levels of TAT (5.24 microg/l, 4.33-6.14) (mean, 95%CI) than persons with echolucent plaques (n = 65) (3.44 microg/l, 2.91-3.96, p < 0.001) and controls (n = 136) (3.33 microg/l, 3.06-3.60, p < 0.001). They also had significantly higher levels of F1+2 (2.14 nM, 1.83-2.45) than persons with echolucent plaques (1.54 nM, 1.38-1.71, p < 0.001) and controls (1.49 nM, 1.40-1.58, p < 0.001). TAT and F1+2 increased linearly with plaque echogenicity (p = 0.002 and p = 0.001, respectively) independent of the degree of stenosis. Increased thrombin generation was associated with a significant increase in plasma factor V levels among persons with echogenic plaques compared to echolucent plaques (p = 0.049) and controls (p = 0.025). The present findings indicate that increasing plaque echogenicity, rather than plaque echolucency and the degree of stenosis, is associated with thrombin generation in persons with carotid stenosis.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
With Notø AT,Mathiesen EB,Østerud B,Amiral J,Vissac AM,Hansen JBdoi
10.1160/TH07-08-0493subject
Has Abstractpub_date
2008-03-01 00:00:00pages
602-8issue
3eissn
0340-6245issn
2567-689Xpii
08030602journal_volume
99pub_type
杂志文章abstract：:We investigated the influence of low molecular weight dextran sulfate (LMWdxs) and low molecular weight heparins (LMWH: dalteparin, enoxaparin and nadroparin) on the inhibition of FXIa by C1-inhibitor, alpha1-antitrypsin, alpha2-antiplasmin and antithrombin in a purified system and in plasma. The second order rate con...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:Platelets from cattle with the Chediak-Higashi syndrome (CHS) have a platelet dense granule deficiency. One hypothesis for the platelet dense granule deficiency is that the granule is simply not formed in CHS megakaryocytes (MK). Alternative hypotheses include that the granule is assembled in CHS MK but a functional a...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1990-10-22 00:00:00
abstract：:We investigated the prevalence of the new recently reported mutation in the prothrombin gene (20210 A) in a sample of 116 unrelated patients with venous thromboembolism. We found 20 heterozygous carriers (17.2%, CI 95% 10.4-21.1). In comparison, we observed 13 carriers among 201 healthy unmatched controls (6.5%, CI 3....
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：:An amidrazonophenylalanine derivative, LB30057, inhibits the catalytic activity of thrombin potently by interaction with the active site of thrombin, and has high water solubility. In the present study, we evaluated the effect of LB30057 on the biological activities of thrombin at various tissues, and determined wheth...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:Bacteraemia and viraemia are characterised by pathogens entering the bloodstream. Endothelial cells are among the first cells coming into contact with the microbes and also some endogenous molecules which are released by tissue damage. As part of the innate immune system, endothelial cells respond to these contacts by...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH09-05-0323
更新日期：2009-12-01 00:00:00
abstract：:During the collection of samples for plasma beta-thromboglobulin (beta-TG) determination, it is well established that artificially high values can be observed due to in-vitro release. To estimate the reliability of a single beta-TG measurement, blood samples were collected simultaneously from both arms on two separate...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-04-07 00:00:00
abstract：BACKGROUND:Recombinant hirudin, a pure, specific antithrombin could be more effective than heparin in the treatment of deep vein thrombosis, but its short half-life requires constant intravenous infusion, whereas subcutaneous administration of recombinant hirudin can ensure stable and prolonged plasma levels. The aim o...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:We compared the Ivy bleeding time method and two alternatives of the Simplate II method (incisions in horizontal and vertical direction) with each other, with regard to the sensitivity, the specificity, the costs and the burden for the patient. In the aspirin study an aspirin-induced bleeding defect was used. Seventy-...
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：1992-05-04 00:00:00
abstract：:Analysis of platelet membrane proteins and glycoproteins by SDS polyacrylamide gel electrophoresis was carried out before and after treatment with thrombin. Extended incubation with thrombin (in the presence of EDTA or adenosine, which inhibit aggregation) produced extensive changes in the bands observed. With incuba...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1977-06-30 00:00:00
abstract：:The Ig-ITIM superfamily member, PECAM-1 acts as a negative regulator of ITAM-signalling pathways in platelets involving GPVI/FcR gamma chain and Fc?RIIa. This negative feedback loop involves regulation of collagen and GPVI-dependent aggregation events, platelet-thrombus-growth on immobilised collagen under flow and Fc...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2006-12-01 00:00:00
abstract：:A synthetic hirudin55-65 C-terminal fragment analog was evaluated for anticoagulant activity and in models of experimental thrombosis in mice and rats. Intravenous injection caused dose-related inhibition of thrombin and anticoagulation in rat blood samples, protection from thromboembolism in mice and inhibition of st...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1991-04-08 00:00:00
abstract：:Cell accumulation is a prerequisite for adipose tissue inflammation. The leukocyte integrin Mac-1 (CD11b/CD18, αMβ2) is a classic adhesion receptor critically regulating inflammatory cell recruitment. Here, we tested the hypothesis that a genetic deficiency and a therapeutic modulation of Mac-1 regulate adipose tissue...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-07-0553
更新日期：2017-01-26 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：BACKGROUND: There have been no prior nationwide reports on the prevalence of hypertrophic cardiomyopathy (HCM) among patients suffering from atrial fibrillation (AF). It is also unclear how much stroke risk is attributable to HCM compared with other stroke risks in patients with AF. This study assessed the prevalence o...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0038-1676818
更新日期：2019-02-01 00:00:00
abstract：:Antibodies directed against ADAMTS13 have been detected in the majority of patients with acquired thrombotic thrombocytopenic purpura (TTP). We have previously localized a major antigenic determinant within the spacer domain of ADAMTS13. To identify the amino acid residues of the spacer domain that are involved in bin...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH06-03-0135
更新日期：2006-09-01 00:00:00
abstract：:The first step of coagulation factor XIII (FXIII) activation involves cleavage of the FXIII activation peptide (FXIII-AP) by thrombin. However, it is not known whether the FXIII-AP is released into plasma upon cleavage or remains attached to activated FXIII. The aim of the present work was to study the structure of fr...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2007-06-01 00:00:00
abstract：:Platelets are key players in atherothrombosis. Antiplatelet therapy comprising aspirin alone or with P2Y12-inhibitors are effective for prevention of atherothrombotic complications. However, there is interindividual variability in the response to antiplatelet drugs, leaving some patients at increased risk of recurrent...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH15-02-0179
更新日期：2015-08-31 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：:Activated protein C resistance (APCR) is a major risk factor for venous thromboembolism (VTE). Although the factor V (FV) Leiden mutation accounts for the vast majority of APCR cases, other polymorphisms may contribute to the APCR phenotype. Genetic components of APCR and thrombophilia were investigated by two dinucle...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：:Heparin therapy was monitored with the activated partial thromboplastin time (APTT) and with chromogenic substrate assays (factor Xa and factor IIa inhibition) in 100 plasma samples from 47 patients. Heparin concentrations were classified as being below, within or above a defined therapeutic range (TR; 0.2-0.55 units ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-10-28 00:00:00
abstract：:Arterial stenosis results in a complex pattern of blood flow containing an extremely fast flow in the throat of stenosis and a post-stenosis low flow. The fast flow generates high shear stress that has been demonstrated in vitro to activate and aggregate platelets. One potential problem of these in vitro studies is th...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：:To investigate pituitary effects on the vitamin K-dependent coagulation factors, female rats were hypophysectomized (hypox) and treated with growth hormone (GH), cortisone, thyroxine, vitamin K, or saline. After 11 days of treatment, the prothrombin time, platelet count, and factors II, VII, IX, and X were determined....
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:Advanced electronic alerts (eAlerts) and computerised physician order entry (CPOE) increase adequate thromboprophylaxis orders among hospitalised medical patients. It remains unclear whether eAlerts maintain their efficacy over time, after withdrawal of continuing medical education (CME) on eAlerts and on thromboproph...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH11-04-0220
更新日期：2011-10-01 00:00:00
abstract：:Samples taken at various stages of preparation of intermediate purity factor VIII concentrate were assayed for factor VIII coagulant activity (VIII:C), factor VIII coagulant antigen (VIIIC:Ag) and factor VIII related antigen (VIIIR:Ag). The antigen results were used to assess mechanical loss during fractionation as th...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：:To assess the thrombotic risk of aprotinin in aortocoronary bypass surgery, we retrospectively analyzed the results of a trial, originally designed to compare the effects of one-year treatment with various antithrombotic drugs in the prevention of vein-graft occlusion. Graft patency at one year was assessed by angiogr...
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：1996-01-01 00:00:00
abstract：:Prothrombin complex concentrates (PCCs) and fresh-frozen plasma (FFP) have been clinically used for acute warfarin reversal. The recovery of prothrombin time (PT) or international normalised ratio (INR) is often reported as an endpoint, but haemostatic efficacies of PCCs and FFP may not be fully reflected in static cl...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH11-04-0240
更新日期：2011-12-01 00:00:00
abstract：:It is known that the fibrinolysis inhibitors in the human placenta are proteins which, in vitro, block urokinase plasminogen activation and are for this reason called urokinase inhibitors. In the present study it was found, for the first time, that a slow-molecular urokinase inhibitor also occurs in the human placenta...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1980-02-29 00:00:00
abstract：:Measurement of heparin ex vivo is usually with reference to standard curve prepared with a "spiked" normal human plasma pool (NHP). When the calibration curve was prepared by addition of heparin to whole blood before plasma separation, although the linear relationship was maintained the slope was increased in comparis...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1989-04-25 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：: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
