Abstract:
:A dimorphism in PROS1 gene (c.A2,001G, p.Pro667Pro) has been associated with significantly reduced levels of both free and total protein S in carriers of the GG genotype. It is not known how the GG genotype could influence PS levels in normals, whether it could influence the levels of protein S in carriers of mutations in PROS1 gene and whether this genotype acts as an isolated or additive risk factor for venous thrombosis. With this as background, we evaluated the association of p.Pro667Pro dimorphism with free and total protein S centrally measured in a panel of 119 normal controls, 222 individuals with low protein S and 137 individuals with normal PS levels belonging to 76 families with protein S deficiency enrolled in the ProSIT study. Transient expression of recombinant wild type protein S and p.Pro667Pro protein S was performed to evaluate the role of the A to G transition at position 2001 in vitro. The p.Pro667Pro polymorphism was also expressed together with a p.Glu67Ala variant to assess a possible influence on protein S levels in protein S deficient subjects. Free and total protein S levels were significantly lower in normal women. In normal women only was the GG genotype associated with significantly lower free protein S levels in comparison to AA and AG genotypes (P=0.032). No significant influence of GG genotype was observed in patients, either with known mutations or with low protein S levels. These data were confirmed by in vitro transient expression, showing no difference in secretion levels of the p.Pro667Pro variant (even in association with the p.Glu67Ala mutation), compared to the wild type protein S. The genotype in itself was neither a significant risk factor for venous thrombosis nor a risk modifier in patients with known mutations.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Castaman G,Biguzzi E,Razzari C,Tosetto A,Fontana G,Asti D,Brancaccio V,Castori D,Lane DA,Faioni EM,ProSIT (Protein S Italian Team).doi
10.1016/j.thromres.2006.10.014subject
Has Abstractpub_date
2007-01-01 00:00:00pages
421-6issue
3eissn
0049-3848issn
1879-2472pii
S0049-3848(06)00433-6journal_volume
120pub_type
杂志文章abstract::Cell lysates of the human monoblastic leukemia cell line, THP-1, have procoagulant activity (PCA) that is Ca++-dependent and not demonstrable in either Factor VII-, or Factor X-deficient plasma. The PCA of THP-1 cells was enhanced by human recombinant tumor necrosis factor-alpha (TNF-alpha) up to five fold. There was ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(89)90162-x
更新日期:1989-10-15 00:00:00
abstract:INTRODUCTION:Uremic bleeding frequently occurs in dialysis patients. Although its mechanism is not well characterized, acquired platelet dysfunction has been implicated in its pathogenesis. Skin bleeding time has been used to characterize platelet dysfunction in this population. However, the bleeding time is prone to e...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2006.02.013
更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:Several hemostatic system components, including factor X (FX), contribute to cancer progression. The Protein Z (PZ)/protein Z-dependent protease inhibitor (ZPI) complex directly inhibits factor Xa proteolytic activity. The aim of this study was to determine the antigenic distribution of ZPI and PZ, in rela...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2011.10.027
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:According to US Food and Drugs Administration (FDA), 2 hour recombinant tissue plasminogen activator (rt-PA) 100mg infusion is recommended for eligible patients with acute pulmonary embolism (PE). However,there exists evidence implying that a lower dosage of rt-PA can be equally effective but p...
journal_title:Thrombosis research
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.thromres.2013.12.026
更新日期:2014-03-01 00:00:00
abstract::Defibrotide (D) is a natural polydeoxyribonucleotide from mammalian lungs with profibrinolytic and antithrombotic activities. D also has PGI2-stimulating and tissue plasminogen activator (TPA)-releasing activities, but has no anticoagulant properties. The protective effects of D were demonstrated very recently in a mo...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(86)90265-3
更新日期:1986-05-01 00:00:00
abstract::Heparanase is an endo-beta-D-glucuronidase capable of cleaving heparan sulfate (HS) side chains of heparan sulfate proteoglycans (HSPG) on cell surfaces and the extracellular matrix, activity that is strongly implicated in tumor metastasis and angiogenesis. Evidence was provided that heparanase over-expression in canc...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/S0049-3848(10)70018-9
更新日期:2010-04-01 00:00:00
abstract::We report here that the rate of fibrin polymerization is accelerated by decompression: the rate is essentially doubled by reducing the pressure by one-half (380 torr, 14.7 PSI or 1/2 ATM) and increased by 3.6 times with respect to the control at 25 torr (0.48 PSI or 1/30th ATM). We also report here that the rate of fi...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(88)90251-4
更新日期:1988-03-15 00:00:00
abstract::Sulfation of the natural polysaccharide curdlan results in anticoagulantly active beta-1,3-glucan sulfates whose activity depends on various structural parameters. In this study the anticoagulant and antithrombotic effects of one of these beta-1,3-glucan sulfates (GS) were compared with those of a porcine mucosal hepa...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(95)00049-w
更新日期:1995-05-01 00:00:00
abstract::Normal haemostasis requires maintenance of a careful equilibrium between the necessity to clot when bleeding and the retention of fluid phase at all other times. Disruption of this equilibrium can result in catastrophic outcomes, e.g. acute myocardial infarction and pulmonary embolism. However, despite the significant...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2019.04.033
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Ultrasound has the potential to augment chemical thrombolysis. METHODS AND RESULTS:Thrombotic occlusions in the left circumflex artery (LCx) were induced in 27 dogs. Sixty minutes later, tissue-type plasminogen activator (t-PA) was given intravenously over 90 min. Thrombotic occlusions (n = 20) were treated...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(03)00335-9
更新日期:2003-05-01 00:00:00
abstract::The influence of acute hypoxemia on blood fibrinolytic activity was investigated in 12 healthy males. Physiologically significant hypoxemia was produced by inspiration of 13% oxygen for 30 min. Six healthy males were exposed to hypoxemia at rest and 6 males to hypoxemia during exhaustive physical exercise on an ergocy...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90222-2
更新日期:1987-02-15 00:00:00
abstract::A blinded randomized multicenter trial of two non-activated prothrombin complex concentrates was carried out to determine the clinical effectivity in the treatment of acute hemarthrosis in hemophiliac patients with inhibitors. The one product was prepared via DEAE Sephadex chromatography, while the second was fraction...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0049-3848(86)90115-5
更新日期:1986-06-15 00:00:00
abstract::Thrombin was acetylated by treatment with acetic anhydride, and the potency for protein C activation and the fibrinogen clotting activity of the resultant acetylthrombin were investigated in vitro and in vivo. The acetylthrombin retained an amidolytic activity to the synthetic substrate, S-2238, and reduced both of th...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90053-f
更新日期:1990-08-15 00:00:00
abstract::The study of the interaction between activated protein C (APC) and non-plasmatic inhibitors allowed us to demonstrate that aprotinin is a potent competitive inhibitor of APC with a Ki of 1.35 mumol/L. It was possible to adsorb immunopurified protein C (PC) activated by venom activator to insolubilized aprotinin and to...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90268-h
更新日期:1990-07-01 00:00:00
abstract::Experimental and clinical studies support the pivotal role played by reactive oxidant species in the mechanism of platelet activation. This effect is achieved via multiple pathways, including enhanced formation of isoprostanes. Platelet NADPH oxidase seems to be the main source of platelet reactive oxidant species and...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2011.12.002
更新日期:2012-03-01 00:00:00
abstract::The prevention of venous thromboembolism (VTE) in women with cancer requires special consideration. The presence of cancer results in both non-surgical and surgical patients having increased risk of VTE. This usually leads to a modification of the recommended preventive therapy, affecting the type, dose and length of ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/S0049-3848(11)70003-2
更新日期:2011-02-01 00:00:00
abstract::RheothRx Injection, an aqueous solution of a nonionic block copolymer (poloxamer 188) formulated for intravenous administration, was investigated as an inhibitor of red blood cell (RBC)-induced platelet aggregation at plasma concentrations of 0.05-5mgmL-1. Platelet aggregation was determined by measuring the fall in s...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(95)00134-d
更新日期:1995-09-15 00:00:00
abstract::Anticoagulant properties of three sulfated compounds prepared from xylans isolated from corn cobs, larchwood and oatspelts were compared with heparin and sodium pentosan polysulfate (SP-54) by studying their effects on activated partial thromboplastin time (APTT), prothrombin time (PT) and thrombin time (TT) using poo...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90148-4
更新日期:1987-08-01 00:00:00
abstract:PURPOSE:The study sought to synthesize anionic peptide-conjugated tissue plasminogen activator (tPA) for its targeted/triggered delivery, where tPA's activity would be masked in the circulation and regenerated at the thrombus site by a commonly used anticoagulant, heparin, to minimize tPA associated bleeding complicati...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2012.11.030
更新日期:2013-03-01 00:00:00
abstract::Excess platelets shorten most clotting tests for lupus anticoagulant (LA). Often it is not clear if a shortened, normal or slightly prolonged result in a test masks a weak LA in combination with activated platelets, which express procoagulant phospholipid (PPL). Our aim was to investigate a new LA-insensitive factor X...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2004.06.001
更新日期:2004-01-01 00:00:00
abstract::We have recently demonstrated that contact activation of the intrinsic coagulation cascade in vitro is accompanied not only by thromboxane (TX) B2 generation but also by the formation of 5-lipoxygenase-derived cysteinyl-leukotrienes (LT). In our present study we have investigated the effects of the vascular wall on th...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(93)90175-n
更新日期:1993-10-01 00:00:00
abstract:INTRODUCTION:Patients with type 1 diabetes have high risk of developing microvascular complications, and microangiopathy contributes to premature cardiovascular disease in this population. The role that microvesicles (MVs) may play in the development of microangiopathy in type 1 diabetes remains unclear. MATERIALS AND...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2020.08.012
更新日期:2020-12-01 00:00:00
abstract::The inability of the heparin-antithrombin complex to inhibit fibrin-bound thrombin limits the utility of heparin for treatment of arterial thrombosis. In contrast with heparin, melagatran, a direct thrombin inhibitor (DTI), is equally effective at inhibiting fluid-phase thrombin and thrombin bound to fibrin. This refl...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/s0049-3848(03)00251-2
更新日期:2003-07-15 00:00:00
abstract::The enzymatic and fibrinolytic properties of glycosylated and nonglycosylated recombinant human pro-urokinase (pro-UK) produced in yeast Pichia pastoris were characterized and compared with those of Escherichia coli and mammalian cell-derived pro-UK. Among the five different forms of pro-UK, the yeast glycosylated pro...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(00)00349-2
更新日期:2000-12-01 00:00:00
abstract::The protease inhibitor, aprotinin, has been examined for its ability to inhibit urokinase and tissue-type plasminogen activators at pH 7.4 in assays utilizing pyroGlu-Gly-Arg-p-nitroanilide and H-D-Ile-Pro-Arg-p-nitroanilide as substrates, respectively. Aprotinin inhibited both two-chain low molecular weight urokinase...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(88)90252-6
更新日期:1988-03-15 00:00:00
abstract:INTRODUCTION:Different Klebsiella pneumoniae strains carry different virulence factors and antibiotic resistance and may cause thrombocytopenia. This study aimed to investigate the effects of different infections caused by K. pneumoniae on platelets. METHODS:Two hypermucoviscous K. pneumoniae strains and two classic s...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2018.09.053
更新日期:2018-11-01 00:00:00
abstract:UNLABELLED:Suboptimal gastrointestinal absorption is a problem for many direct thrombin inhibitors. The studies presented herein describe the new oral direct thrombin inhibitor H 376/95, a prodrug with two protecting residues added to the direct thrombin inhibitor melagatran. Absorption properties in vitro: H 376/95 is...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(00)00399-6
更新日期:2001-02-01 00:00:00
abstract::Effects of Ca2+ on phospholipid methylation in rabbit platelet membranes were studied using S-adenosyl-L-[3H-methyl]methionine as a substrate. The methylation was inhibited to 30% of the basal activity with 100 microM Ca2+. The inhibition was completely counteracted by various calmodulin antagonists. Their concentrati...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(83)90259-1
更新日期:1983-12-01 00:00:00
abstract::One of the major pathogens of periodontitis, Porphyromonas gingivalis (P. gingivalis), has the ability to aggregate human platelets. To investigate the interaction between P. gingivalis and human platelets in platelet rich plasma (PRP), platelet aggregation was measured by an aggregometer based on laser light scatteri...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2008.03.011
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Cancer patients have an increased risk of thrombosis. Tissue factor (TF) antigen and TF activity associated with microparticles in plasma are elevated in patients with various types of cancer. Of these two measurements, TF activity is considered superior to TF antigen levels because the activity more closely...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2007.12.023
更新日期:2008-01-01 00:00:00