Abstract:
:We compared the anticoagulant, antithrombotic and bleeding effects of highly sulfated dermatan sulfates from invertebrates and their mammalian counterpart. An invertebrate dermatan sulfate containing 2-O-sulfated alpha-L-iduronic acid and 4-O-sulfated N-acetyl-beta-D-galactosamine residues is a potent anticoagulant due to a high heparin cofactor II activity. It inhibits thrombin due to the formation of a covalent complex with heparin cofactor II, as in the case of mammalian dermatan sulfate, but the effect occurs at lower concentrations for the invertebrate polysaccharide. Surprisingly, the invertebrate dermatan sulfate has a lower potency to prevent thrombus formation on an experimental model and a lower bleeding effect in rats than the mammalian dermatan sulfate. In contrast, another invertebrate dermatan sulfate, also enriched in 2-O-sulfated alpha-L-iduronic acid, but in this case sulfated at O-6 position of the N-acetyl-beta-D-galactosamine units, has no in vitro or in vivo anticoagulant activity, does not prevent thrombus formation but shows a bleeding effect similar to the mammalian glycosaminoglycan. Overall, these results demonstrate unbalanced effects of dermatan sulfates with different sulfation patterns on coagulation, thrombosis and bleeding, and raise interesting questions concerning the relationship among these three biological actions of sulfated polysaccharides.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Vicente CP,Zancan P,Peixoto LL,Alves-Sá R,Araújo FS,Mourão PA,Pavão MSkeywords:
subject
Has Abstractpub_date
2001-11-01 00:00:00pages
1215-20issue
5eissn
0340-6245issn
2567-689Xpii
01111215journal_volume
86pub_type
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1990-08-13 00:00:00
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journal_title:Thrombosis and haemostasis
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更新日期:1997-07-01 00:00:00
abstract::Platelets are suggested to play a crucial role in cancer progression and the prothrombotic state of cancer patients. Here, we aimed to examine the activation status of platelets in cancer patients and investigate their association with risk of death and occurrence of venous thromboembolism (VTE) in a prospective obser...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-02-0123
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH07-08-0528
更新日期:2008-06-01 00:00:00
abstract::In patients with deep vein thrombosis (DVT), the factors which predispose to concomitant symptomatic pulmonary embolism (PE) have remained uncertain. From a prospective cohort of 5,451 consecutive patients with ultrasound-confirmed DVT, we analyzed 4,211 patients with a known status for presence (n=639) or absence (n=...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH04-09-0587
更新日期:2005-03-01 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
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH17-03-0219
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-10-31 00:00:00
abstract::We aimed to determine the association between autoantibodies against apolipoprotein A-1 (anti-apoA-1 IgG) and prevalent cardiovascular (CV) disease (CVD) as well as markers of CV risk in the general population. Cross-sectional data were obtained from 6649 subjects (age 52.6 ± 10.7 years, 47.4 % male) of the population...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-03-0248
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1991-09-02 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2009-06-01 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
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH03-04-0247
更新日期:2004-01-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1994-02-01 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::High physiological concentrations of plasma vasopressin (aVP) when achieved by infusion cause an increase in plasma factor VIII coagulant activity and shortening of the euglobulin clot lysis time (ECLT). To investigate the effects of aVP on components of the fibrinolytic pathway and on thrombin generation, 9 healthy v...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1989-04-25 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:1989-06-30 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH15-09-0749
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1990-02-19 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1999-03-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1976-06-30 00:00:00
abstract::Acid-treated human plasma is a competitive inhibitor of the hydrolysis of D-Val-Leu-Lys-Nan (S-2251) by plasmin. The rate of hydrolysis is decreased to 50% by 750 fold diluted acidified normal plasma and by 60 fold diluted acidified alpha 2-antiplasmin depleted plasma (alpha 2-antiplasmin concentration less than 2%). ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1982-12-27 00:00:00
abstract::The effect of IgGs from 4 patients with antiphospholipid antibodies and elevated excretion of urinary 11-dehydro-thromboxane B2 was evaluated on the production of prostacyclin by human endothelial cells in culture. After 6 h incubation, there was no change in 6-keto-prostaglandin F1 alpha in the supernatant. However p...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00
abstract::The fibrin-mediated enhancement of the activation of plasminogen by tissue-type plasminogen activator observed with normal fibrin, is strongly decreased with fibrin Dusard, although the binding of tissue-type plasminogen activator to this fibrin is normal. This impaired fibrin-mediated plasminogen activation is most l...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-02-28 00:00:00
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::Recently we prepared sulfated, low-molecular-weight lignins (LMWLs) to mimic the biological activities of heparin and heparan sulfate. Chemo-enzymatically prepared sulfated LMWLs represent a library of diverse non-sugar, aromatic molecules with structures radically different from the heparins, and have been found to p...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH09-07-0454
更新日期:2010-03-01 00:00:00
abstract::Duplex ultrasound is the first-line diagnostic test for detecting lower limb deep-vein thrombosis (DVT) but it is time consuming, requires patient transport, and cannot be interpreted by most physicians. The accuracy of emergency physician-performed ultrasound (EPPU) for the diagnosis of DVT, when performed at the bed...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,meta分析,评审
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更新日期:2013-01-01 00:00:00