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 that platelets are invariably exposed to a high shear stress for a period that is significantly longer than they would have experienced in vivo. More importantly, the role of the post-stenosis low flow in platelet activation and aggregation has not been determined. By exposing platelets to a shear profile that contains both high and low shear segments, we found that platelets aggregate when they are exposed to a high shear stress of 100 dyn/cm(2) for as short as 2.5 s, a period that is significantly shorter than those previously reported (30-120 s). Platelet aggregation under this condition requires a low shear exposure immediately after a high shear pulse, suggesting that post-stenosis low flow enhances platelet aggregation. Furthermore, platelet aggregation under this condition is not activation-dependent because the CD62P expression of sheared platelets is significantly less than that of platelets treated with ADP. Based on these findings, we propose that shear-induced platelet aggregation may be a process of mechanical crosslinking of platelets, requiring minimal platelet activation. This process may function as a protective mechanism to prevent in vivo irreversible platelet activation and aggregation under temporary high shear.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Zhang JN,Bergeron AL,Yu Q,Sun C,McIntire LV,López JA,Dong JFkeywords:
subject
Has Abstractpub_date
2002-11-01 00:00:00pages
817-21issue
5eissn
0340-6245issn
2567-689Xpii
02110817journal_volume
88pub_type
杂志文章abstract：:Soluble glycoprotein V (sGPV) is a new plasma marker of thrombosis released from the platelet surface by thrombin. sGPV levels are increased in patients with atherothrombotic diseases, but the determinants of sGPV levels are unknown in the general population. Identification of these potential confounding factors is ne...
journal_title：Thrombosis and haemostasis
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doi：
更新日期：2006-10-01 00:00:00
abstract：:The most accepted therapy for DVT consists of anticoagulation with unfractionated heparin or low molecular weight heparin, followed by variable duration oral anticoagulation but thrombolytic therapy has been proposed in addition to standard anticoagulation. This paper reviews the literature on post thrombotic syndrome...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,meta分析
doi：
更新日期：2001-07-01 00:00:00
abstract：:The ARISTOTLE trial showed a risk reduction of stroke/systemic embolism (SE) and major bleeding in non-valvular atrial fibrillation (NVAF) patients treated with apixaban compared to warfarin. This retrospective study used four large US claims databases (MarketScan, PharMetrics, Optum, and Humana) of NVAF patients newl...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,多中心研究
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更新日期：2017-06-02 00:00:00
abstract：:Thrombocytopenia occurred in 11.6% of 43 patients prospectively randomized to receive either bovine lung or porcine mucosal heparin. Four patients received bovine heparin and developed mild to moderate thrombocytopenia after eight to twelve days which resolved when therapy was stopped in one to six days. One patient r...
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：1980-02-29 00:00:00
abstract：:In hereditary angioedema (HAE), normal C1-inhibitor (C1-INH) is low and the contact system activated. Recently, the findings of a tissue factor mutant selectively deficient in promoting the conversion of FVII to FVIIa, but with retained cofactor for FVIIa, made it possible to examine reliably the pre-existing content ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：:Washed human platelets have been labeled with either 32Pi or glycerol-1-14C and the distribution of the label in the phospholipids determined. 32Pi was introduced primarily into polyphosphoinositides, i.e. di- and triphosphoinositide, whereas the label from glycerol which indicates de novo synthesis of lipid molecules...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1976-04-30 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
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更新日期：1999-06-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-08-24 00:00:00
abstract：:Global coagulation assays display variable effects at different concentrations of rivaroxaban. The aim of this study is to quantify the ex vivo effects of low-dose rivaroxaban on thrombophilia screening assays and coagulation factor activities based on the administration time, and to show how to mask possible inter...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH12-04-0228
更新日期：2013-01-01 00:00:00
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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：1985-08-30 00:00:00
abstract：:Forty-two patients with total occlusion of a coronary vessel were treated with intracoronary fibrinolytic agents. Four therapeutic protocols were compared: group I received streptokinase (SK) as a continuous infusion; group II and III received SK as a bolus at different doses and group IV received lysplasminogen (Pg) ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1983-12-30 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2001-02-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-11-0769
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abstract：:Thrombus formation is recognized pathologically in the affected arteries and is supposed to play a major role in the pathogenesis of Takayasu's arteritis; however, hemostatic conditions in this disorder have not been elucidated fully. We determined plasma levels of molecular markers for platelet activity (platelet fac...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,多中心研究
doi：10.1160/TH15-05-0394
更新日期：2016-01-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-05-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1999-09-01 00:00:00
abstract：:In consecutive patients with suspected venous thromboembolism the interobserver variability of the SimpliRED D-dimer test was evaluated by two observers who independently scored one plate, the between assay variation was performed simultaneously by a third independent observer, who assessed a second plate. The biologi...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-10-01 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1997-04-01 00:00:00
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journal_title：Thrombosis and haemostasis
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doi：10.1160/TH16-11-0837
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-06-30 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-08-30 00:00:00
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journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：
更新日期：1993-11-15 00:00:00
abstract：:Growing evidence indicates that rheumatoid arthritis (RA) is associated with an increased risk for thromboembolic cardiovascular events. We investigated thrombin generation profiles in RA patients and their dependence on plasma factor/inhibitor composition. Plasma factor (F) compositions (II, V, VII, VIII, IX, X), ant...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH10-02-0091
更新日期：2010-08-01 00:00:00
abstract：:Inherited thrombophilic states are associated with an increased risk for deep vein thrombosis (DVT), but whether they are also risk factors for superficial vein thrombosis (SVT) is uncertain. We assessed the risk conferred by inherited thrombophilic states in patients with a first episode of SVT in whom the coexistenc...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1999-10-01 00:00:00
abstract：:We investigated the molecular basis of hypofibrinogenaemia in a woman with a history of recurrent, pregnancy-associated bleeding, and miscarriage. She had a Clauss fibrinogen of 0.9 mg/ml and SDS PAGE of purified fibrinogen showed a normal pattern of chains. However careful inspection of reverse phase chain separation...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Graduated elastic compression stockings (GECS) are commonly used in the primary prevention of deep vein thrombosis (DVT); however, their role in preventing recurrent DVT and also post-thrombotic syndrome is less well established. The aim of this review was to investigate the effect of GECS after DVT. A literature sear...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：2006-10-01 00:00:00
abstract：:A pulmonary embolism model in hamsters was used for the quantitative evaluation of the thrombolytic and pharmacokinetic properties of variants of tissue-type plasminogen activator (t-PA). A 25 microliters 125I-fibrin labeled human plasma clot was made in vitro and injected into the jugular vein of heparinized hamsters...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1991-02-12 00:00:00
