Abstract:
:The synthetic peptide SFLLRNPNDKYEPF, identical in sequence to the new amino-terminus of the thrombin receptor generated following cleavage of thrombin, acts a thrombin receptor agonist/activating peptide (TRAP). In this study, Northern blot analysis showed that cultured human vascular smooth muscle cells (HVSMC) express a thrombin receptor transcript. TRAP, in contrast to thrombin was shown to be a weak mitogen for HVSMC. A combination of TRAP and enzymatically-inactivated thrombin (PPACK-thrombin) which provides receptor occupancy, did not potentiate TRAP-induced mitogenesis, indicating that TRAP and PPACK-thrombin do not reproduce the mitogenic effect of enzymatically-active thrombin. Both thrombin and TRAP, induced the expression of c-fos and the PDGF-A gene in a pertussis toxin (PTX)-insensitive manner. Examination of thrombin and TRAP-treated cells by immunofluorescence staining followed by computer assisted image analysis revealed that thrombin and to a lesser extent TRAP induced PDGF-AA protein expression. Antibodies to PDGF-AA partially inhibited thrombin but not TRAP-induced mitogenesis in HVSMC. This study indicates that in addition to the common signalling pathways utilised by thrombin and TRAP, enzymatically-active thrombin activates other signalling pathways and hence TRAP does not mimic fully the biological effect of thrombin on HVSMC.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Kanthou C,Benzakour O,Patel G,Deadman J,Kakkar VV,Lupu Fsubject
Has Abstractpub_date
1995-11-01 00:00:00pages
1340-7issue
5eissn
0340-6245issn
2567-689Xjournal_volume
74pub_type
杂志文章abstract::To study the effect of lymphocyte adhesion on the procoagulant activity of endothelial cells, we have stimulated HUVECs with interferon-gamma to upregulate adhesion molecules. Subsequent addition of lymphocytes induced the expression of tissue factor (TF) by HUVECs. Both CD4+ and CD8+ T-cells promoted this TF synthesi...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract::Thrombin triggers activation of platelets through protease-activated receptor 1 (PAR-1) and PAR-4. Both receptors are widely expressed and exert multiple platelet-independent functions. PAR signalling contributes to healing responses after injury, by promoting cytokine activity and cellular growth and mobility. Uncont...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH17-03-0219
更新日期:2017-11-01 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::ADAMTS13 dysfunction has been involved in the pathogenesis of Thrombotic Thrombocytopenic Purpura. This disorder occurs more frequently in women and, in 13% of them, is associated with pregnancy. However, there is little information on the protease behaviour in normal pregnancy. We studied von Willebrand factor and AD...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH03-11-0683
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND:Paravalvular aortic regurgitation (PVAR) remains a frequent postprocedural concern following transcatheter aortic valve replacement (TAVR). Persistence of flow turbulence results in the cleavage of high-molecular-weight von Willebrand multimers, primary haemostasis dysfunction and may favour bleedings. Recen...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1639352
更新日期:2018-05-01 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::Endothelial dysfunction and increased platelet aggregation may be involved in the pathogenesis of normal tissue radiation toxicity. This study assessed clopidogrel, an inhibitor of ADP-induced platelet aggregation, as a modulator of intestinal radiation injury (radiation enteropathy). Rat small intestine was exposed t...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::We performed experiments to determine whether endothelial cells synthesize phospholipid metabolites via the lipoxygenase pathway and whether these metabolites influence platelet/vessel wall interactions. Monolayers of cultured human endothelial cells were incubated with 14C-arachidonic acid and their cyclo-oxygenase a...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1985-06-24 00:00:00
abstract::The clinical impact of in-stent thrombosis is high because it is associated with high mortality and 20 % of the patients suffer a recurrent event within the two following years. The aim of this study was to characterise the morphologic and proteomic profile of in-stent thrombi (IST) in comparison to thrombi developed ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH17-03-069
更新日期:2017-08-30 00:00:00
abstract::Carbamylation is a non-enzymatic post-translational modification induced upon exposure of free amino groups to urea-derived cyanate leading to irreversible changes of protein charge, structure and function. Levels of carbamylated proteins increase significantly in chronic kidney disease and carbamylated albumin is con...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-09-0704
更新日期:2017-05-03 00:00:00
abstract::Venous thromboembolism, which encompasses deep-vein thrombosis and acute pulmonary embolism (PE), represents a major contributor to global disease burden worldwide. For patients who present with cardiogenic shock or persistent hypotension (acute high-risk PE), there is consensus that immediate reperfusion treatment ap...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH14-11-0998
更新日期:2015-06-01 00:00:00
abstract::Megakaryocyte (MK)-derived miRNAs have been detected in platelets. Here, we analysed the expression of platelet and circulating miR-223, miR-26b, miR-126 and miR-140 that might be altered with their target mRNAs in type 2 diabetes mellitus (DM2). MiRNAs were isolated from leukocyte-depleted platelets and plasma sample...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-04-0322
更新日期:2017-02-28 00:00:00
abstract::Activated protein C (APC) is a serine proteinase that regulates blood coagulation. In plasma it is inhibited mainly by the protein C inhibitor (PCI). The plasma concentrations of APC-PCI complex is increased in hypercoagulative states such as deep venous thrombosis. Formation of the APC-PCI complex induces a drastic c...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND: A strong association between on-thienopyridine platelet reactivity (PR) and the risk of both thrombotic and bleeding events in acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI) has been demonstrated. However, no study has analyzed the relationship between on-ticagrel...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/a-1326-5110
更新日期:2020-12-01 00:00:00
abstract::Platelets contain, besides alpha- and delta-granules, lysosomes which store glycohydrolases able to degrade glycoproteins, glycolipids and glycosaminoglycans. While several studies have shown that alpha- and delta-granule secretion takes place "in vivo" in humans upon platelet activation, no data are available on the ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::In a recent study, we purified and cloned a newly identified bioactive factor that stimulates prostacyclin (PGI2) production by vascular endothelial cells (ECs) using conditioned medium (CM) from cultured human diploid fibroblast cells. The present study was undertaken to clarify whether PSF is expressed in ECs and va...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract::We have identified a patient with a dysfunctional prothrombin that we have designated Prothrombin Frankfurt. The proband was characterized by a prothrombin activity level of 13% and 20% compared to normal controls using two different assays with a normal prothrombin antigen level of 91% of normal controls. The genetic...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
abstract::Atherosclerosis is a prevalent inflammatory condition and a frequent cause of morbidity and mortality worldwide. Macrophages are among the key immune cells driving lesion formation in the arterial wall. They have therefore evolved as potential targets for therapeutic strategies. Understanding of the different macropha...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0039-1692665
更新日期:2019-08-01 00:00:00
abstract::EPCR is a type I transmembrane protein, highly expressed on the endothelium of large vessels, that binds protein C and augments its activation. In this study, a 23bp insertion in the EPCR gene was found in 4/198 survivors of myocardial infarction and 3/194 patients with deep vein thrombosis. The EPCR gene with the ins...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2001-10-01 00:00:00
abstract::The effects of argatroban, a direct thrombin inhibitor, on the International Normalized Ratio (INR), activated partial thromboplastin time (aPTT) and functional factor X during warfarin co-administration were established to provide means to interpret INRs during argatroban/warfarin co-therapy. Twenty-four subjects rec...
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:2001-03-01 00:00:00
abstract::Inhibition of adenylate cyclase in intact platelets by addition of compounds such as 2', 5' - dideoxyadenosine prevented the inhibition of platelet aggregation by PGE1 but did not affect the responses of platelets to aggregating agents in the absence of PGE1. This confirms that cyclic AMP mediates the effects of PGE1 ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1978-10-31 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::The aim of this study was to investigate the anti-thrombotic effects of an inhibitor of the plasminogen activator inhibitor-1 (PAI-1) in rats given endotoxin. In studies in vitro, PRAP-1, a Fab-fragment of a polyclonal antibody against human PAI-1, was shown to inhibit PAI-1 activity in rat plasma as well as to stimul...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::The evidence is reviewed and a model presented for two distinct receptors being involved in platelet activation induced by alpha-thrombin: a high affinity thrombin receptor constituting approximately 50 copies of a supercomplexed form of GPIb coupled to phospholipase A2 and a moderate affinity receptor constituting ap...
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::An international collaborative study involving seven laboratories was undertaken to assess the suitability of a freeze-dried preparation of human plasmin to replace the current International Reference Preparation (IRP) for plasmin. Chromogenic and fibrinolytic assays were used by all participating laboratories to asse...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1983-10-31 00:00:00
abstract::The Pulmonary Embolism Severity Index (PESI) is a validated clinical prognostic model for patients with acute pulmonary embolism (PE). Our goal was to assess the PESI's inter-rater reliability in patients diagnosed with PE. We prospectively identified consecutive patients diagnosed with PE in the emergency department ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH10-07-0426
更新日期:2010-12-01 00:00:00
abstract::Tissue-type plasminogen activator (t-PA) is a fibrin-specific agent which is used to treat acute myocardial infarction. Pharmacokinetically, t-PA is characterized by a rapid clearance from the circulation. In a previous study, we constructed variant forms of t-PA with genetic modifications at the fibronectin finger-li...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1994-12-01 00:00:00
abstract::Fibrinolytic therapy can result in rapid lysis of deep vein thrombi (DVT), but its use is limited by the failure of many patients to respond and by the increased risk of bleeding complications in comparison with anticoagulant therapy alone. Treatment could be improved by the ability to select patients most likely to r...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND: Carotid atherosclerosis is an important cause of stroke. Intra-plaque haemorrhage (IPH) on magnetic resonance imaging (MRI) increases stroke risk. Development of IPH is only partly understood. Thrombin is an essential enzyme in haemostasis. Experimental animal studies have shown conflicting results on the r...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究
doi:10.1055/s-0038-1666858
更新日期:2018-08-01 00:00:00
abstract::The characterization of mutations in von Willebrand disease provides useful insight into the synthesis, structure, and function of von Willebrand factor. This growing body of information has prompted a reclassification of vWD types that is intended to reflect distinct pathophysiologic mechanisms. Despite this apparent...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1995-07-01 00:00:00