Abstract：
:We studied human platelet aggregation and beta-TG/PF4 release induced by heparin and related GAGs in vitro both in normal PRP and in PRP after aspirin. In our experimental conditions, heparin and related GAGs always caused PF4 release in vitro from normal platelets, whether or not there was measurable platelet aggregation in the aggregometer. Significant beta-TG release was induced only by the mucosal heparin preparation (which also induced platelet aggregation in some citrated PRP). Therefore, while beta-TG release in vitro seems to correlate with platelet aggregating activity of heparin, the selective PF4 release, caused by heparin and related GAGs also in conditions in which neither platelet aggregation nor beta-TG are measurable, is probably associated with the high affinity of PF4 for heparin. The degree of affinity of GAGs for PF4 (heparin greater than DeS greater than HS) seems to correlate with PF4 release. Moreover, the significant reduction in PF4 release in vitro after aspirin suggests that GAGs-induced PF4 release is related to a cyclooxygenase-dependent activation process.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Cofrancesco E,Colombi M,Cristoforetti G,Pogliani EMsubject
Has Abstractpub_date
1984-02-28 00:00:00pages
105-7issue
1eissn
0340-6245issn
2567-689Xjournal_volume
51pub_type
杂志文章abstract：:The effect of aspirin on LPS-incubation of whole blood was investigated. Aspirin induced a concentration dependent increase (2.5-5-fold at 5 mM aspirin) in LPS-induced appearance of TNF-alpha and fibrinopeptide A (FPA) in plasma, despite the concomitant increase in the inhibitory cytokine IL-100. Aspirin substantially...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:The molecular weight profiles of low molecular weight heparin samples have been measured by high-performance gel permeation chromatography using as calibrant the heparinase-degraded material (90/686) now established as the 1st International Reference Preparation (IRP) Low Molecular Weight Heparin for Molecular Weight ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1997-04-01 00:00:00
abstract：:Electrospray ionisation mass spectrometry was used to probe the structure of the new N-linked oligosaccharide in fibrinogen Kaiserslautern (gamma 380 Lys-->Asn). The mass increase of 2177 Da in the new beta chain indicated the attachment of a fully sialylated biantennary oligosaccharide on the new Asn residue; the exp...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-08-01 00:00:00
abstract：:Homocysteine is a sulfhydryl-containing amino acid formed during the metabolism of methionine. Rapidly accumulating evidence links elevated homocysteine levels to thrombosis via several mechanisms such as increased tissue factor expression, attenuated anticoagulant processes, enhanced platelet reactivity, increased th...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH05-05-0313
更新日期：2005-11-01 00:00:00
abstract：:The effects on platelet function of a 5-day course of Ticlopidine (Tcl) have been studied in two groups of volunteers receiving different dosage schedules. Tcl had a relatively greater inhibitory effect on aggregation induced by ADP than by other agonists, and a greater effect, in contrast to that of an ADP receptor a...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1990-08-13 00:00:00
abstract：:This study was undertaken to appraise the application of those reagents most widely used in the UK for the detection and confirmation of lupus anticoagulant (LA) on an Amelung KC4A and a Sysmex CA-6000 coagulometer. Five sets of dilute Russell's viper venom time (DRVVT) reagents were assessed as well as the Textarin-P...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-05-01 00:00:00
abstract：:In 7 healthy volunteers, formation of thrombin (represented by fibrinopeptide A (FPA) generation, alpha-granule release (represented by beta-thromboglobulin [beta TG] release) and the generation of thromboxane B2 (TxB2) were measured in vivo in blood emerging from a template bleeding time incision. At the site of plug...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-02-03 00:00:00
abstract：:Platelet activation plays a pivotal role in physiological hemostasis and pathological thrombosis causing heart attack and stroke. Previous studies conclude that simultaneous activation of Gi and G12/13 signaling pathways is sufficient to cause platelet aggregation. However, using Gq knockout mice and Gq-specific inhib...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0040-1714745
更新日期：2020-11-01 00:00:00
abstract：:There is no patient-reported medication adherence measure that has been validated in Singapore. This study aimed to validate the 8-item Morisky Medication Adherence Scale (MMAS) in patients taking warfarin in Singapore. A cross-sectional survey was conducted in a convenience sample of 151 patients taking warfarin at a...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH12-05-0368
更新日期：2012-10-01 00:00:00
abstract：:Despite reports that Tris [tris (hydroxymethyl)aminomethane] affects platelets, it is often used to buffer suspending media. Human or rabbit platelets were washed and resuspended in Tyrode solution containing apyrase and 0.35% albumin. Addition of 15 mM Tris partially inhibited primary aggregation induced by 10 microM...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-04-30 00:00:00
abstract：:Heparanase is implicated in angiogenesis and tumour progression. We previously demonstrated that heparanase might also affect the haemostatic system in a non-enzymatic manner. It forms a complex and enhances the activity of the blood coagulation initiator tissue factor (TF). Peptides that we generated from TF pathway ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-02-0119
更新日期：2016-09-27 00:00:00
abstract：:Platelet behaviour was studied throughout pregnancy in a group of women who remained normotensive and a group with essential hypertension (EHT). Women who developed pregnancy-induced hypertension (PIH) were also studied together with a group of non-pregnant female controls. We determined the sensitivity of platelets t...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-10-30 00:00:00
abstract：:Thrombin activatable fibrinolysis inhibitor (TAFI) attenuates fibrinolysis and is considered as an attractive drug target. We generated two different antibody fragments, an antigen-binding fragment (Fab) and a single-chain variable fragment (scFv), derived from three distinct monoclonal antibodies (MAs) that inhibit t...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH08-09-0834
更新日期：2009-07-01 00:00:00
abstract：:Direct oral factor inhibitors (DOFIs) are an attractive alternative to vitamin K antagonists (VKA) for the treatment of patients with antiphospholipid syndrome (APS). In the absence of prospective, randomised trial data, reports of therapeutic failures in clinical practice alert clinicians to potential limitations of ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH14-03-0272
更新日期：2014-11-01 00:00:00
abstract：:The effect of selective activation of platelet prostaglandin (PG) E2 receptor subtype EP2 or EP4 on platelet aggregation remains to be determined. In platelets prepared from wild-type mice (WT platelets), high concentrations of PGE2 inhibited platelet aggregation induced by U-46619, a thromboxane receptor agonist. How...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH10-01-0043
更新日期：2010-10-01 00:00:00
abstract：:Increased procoagulant activity in the alveolar compartment and uncontrolled inflammation are hallmarks of the acute respiratory distress syndrome (ARDS). Here, we investigated whether the contact phase system of coagulation is activated and may regulate inflammatory responses in human lungs. Components of the contact...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-12-0904
更新日期：2017-10-05 00:00:00
abstract：:Seven healthy male volunteers were subjected to exercise of short (STR; 1.7 km), middle (MTR; 4.8 km) and long (LTR; 10.5 km) term runs at a speed close to maximal capacity. Blood samples were drawn before, immediately after exercise and at intervals over the next 10 h. FVIIIR:Ag (von Willebrand factor) rose 2.2-3.2 f...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1990-11-30 00:00:00
abstract：:Novel P2Y12 inhibitors are in development to overcome the occurrence of atherothrombotic events associated with poor responsiveness to the widely used P2Y12 inhibitor clopidogrel. Cangrelor is an intravenously administered P2Y12 inhibitor that does not need metabolic conversion to an active metabolite for its antiplat...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH09-06-0367
更新日期：2010-02-01 00:00:00
abstract：:We performed a case-controlled study to investigate whether the FV Leiden mutation and the C > T677 polymorphism of the 5, 10 methylene tetrahydrofolate reductase (MTHFR) are associated with the occurrence of preeclampsia in 96 otherwise healthy preeclamptic women and 129 parous women as controls. FV Leiden carriers w...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1997-06-01 00:00:00
abstract：:Since megakaryocytes are the cellular precursors of platelets we have investigated whether they share responses to platelet agonists, in particular collagen. Although previous studies have reported responses to thrombin in non-human megakaryocytes, through studies of single cell calcium responses and protein tyrosine-...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Overexpression of plasminogen activator inhibitor-1 (SERPINE1, PAI-1), the major physiological inhibitor of pericellular plasmin generation, is a significant causative factor in the progression of vascular disorders (e.g. arteriosclerosis, thrombosis, perivascular fibrosis) as well as a biomarker and a predictor of ca...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：2008-12-01 00:00:00
abstract：:Emicizumab, a humanised bispecific antibody recognising factors (F) IX/IXa and X/Xa, can accelerate FIXa-catalysed FX activation by bridging FIXa and FX in a manner similar to FVIIIa. However, details of the emicizumab-antigen interactions have not been reported so far. In this study, we first showed by surface plasmo...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH17-01-0030
更新日期：2017-06-28 00:00:00
abstract：:Paired blood samples were obtained from mothers (venous) and babies (cord venous blood) at the time of delivery by caesarean section under epidural anaesthetic. Fetal platelets failed to aggregate in response to adrenaline in vitro although adrenaline could potentiate the threshold response to adenosine diphosphate (1...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-02-18 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：:To study the reversible complex formation between the plasma protein histidine-rich glycoprotein (HRG) and plasminogen, crossed immunoelectrophoresis of HRG was modified. In the modification, purified plasminogen was introduced into the gel of the first dimension electrophoresis. Two molecular forms of plasminogen, Gl...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1988-12-22 00:00:00
abstract：:The alphaIIbeta3 receptor (GPIIb/IIIa) is the only platelet-specific integrin receptor and the most abundant adhesion/aggregation receptor on the surface of human platelets. Since mice are increasingly being used as models of human disease, we analyzed the structure and function of murine platelet alphaIIbeta3, utiliz...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-12-01 00:00:00
abstract：:It is conceivable that the extent and spatio-temperal expression of dozens or even a few hundred genes are significantly altered during the development and progression of atherosclerosis as compared to normal circumstances. Differential gene expression in vascular cells and in blood cells, due to gene-gene and gene-en...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：2001-07-01 00:00:00
abstract：:The measurement of platelet deposition in human thrombi is essential for the evaluation of platelet-inhibitory drugs and prosthetic materials for use in patients. The rate of 111Indium-labelled platelet accumulation on Dacron arterial grafts was measured in 27 patients randomised to take either aspirin and dipyridamol...
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：1982-12-27 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：:The pathogenesis of abdominal aortic aneurysm (AAA) involves a central component of chronic inflammation which is predominantly mediated by myeloid cells. We hypothesized that the local inflammatory activity may be reflected in systemic alterations of neutrophil and monocyte populations as well as in soluble factors o...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0039-1679939
更新日期：2019-05-01 00:00:00
