Abstract:
:Biological effects of the modification of the sulphate ester and carboxyl group content of poly(vinyl alcohol-acrylic acid) copolymers (PAVAS) and sulphated polyvinyl alcohol copolymers (PVAS) with mol. weight of 5,000 to 20,000 D were studied. The in vitro anticoagulant potency of PAVAS assessed by activated partial thromboplastin time (APTT) increased with increasing the overall anionic charge, while differences in mol. weight yielded few obvious effect. The degree of sulphation played an essential part, but the carboxyl group content also contributed to the in vitro anticoagulant activity of PAVAS. On i.v. administration to rats (40 mg/kg), the anticoagulant potency of PAVAS was found to be comparable to that observed in vitro. The ability of PAVAS to induce a state of leukocytosis and decrease serum triglyceride level in rats was also dependent on charge density, and both these effects were increased with elevation of charged groups content irrespectively of mol. weight. Sulphated polyvinyl alcohol copolymers (PVAS) showed similarity to PAVAS charge-dependent biological activities.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Csomor K,Kárpáti E,Nagy M,Györgyi-Edelényi J,Machovich Rdoi
10.1016/0049-3848(94)90154-6subject
Has Abstractpub_date
1994-05-15 00:00:00pages
389-98issue
4eissn
0049-3848issn
1879-2472pii
0049-3848(94)90154-6journal_volume
74pub_type
杂志文章abstract::Patients with protamine allergy present a difficult dilemma when reversal of heparin is required for excessive bleeding. Premedication with steroids and antihistamines has not been shown to effectively prevent anaphylactic reactions in patients with hypersensitivity to protamine. Other heparin antagonists are either n...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(89)90132-1
更新日期:1989-06-15 00:00:00
abstract:INTRODUCTION:Extracellular histones are reported to increase thrombin generation in the plasma and induce endothelial cell death in vitro. These effects of histones were suggested to involve histone-induced inhibition of TM-dependent activated protein C (APC) generation. Therefore, we hypothesized that TM alfa, a recom...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2017.10.019
更新日期:2017-12-01 00:00:00
abstract:INTRODUCTION:The effects of multiple inherited and acquired thrombophilic defects on the outcome of in-vitro fertilization (IVF) remain unexplored. The aim of this study was to evaluate the association between multiple thrombophilia and clinical outcomes in a large prospective cohort of women undergoing IVF. MATERIALS...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2018.05.006
更新日期:2018-07-01 00:00:00
abstract::Mild hyperhomocysteinemia is recognized as a risk factor for venous thromboembolism (VTE), though its role in the thrombogenic processes is not understood. Its possible association with impaired fibrinolysis was investigated in 157 patients (61 women, 96 men) below the age of 60 years (43+/-11, mean+/-SD) with a histo...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(00)00324-8
更新日期:2000-11-15 00:00:00
abstract::A 79-year-old lean man with a height of 157cm and weight of 42kg (body mass index, 17.2kg/m(2)) receiving rivaroxaban developed an intracranial subdural hematoma and was treated conservatively. Because he had a reduced creatinine clearance of 44mL/min, his dosage of rivaroxaban was reduced from 15 to 10mg daily accord...
journal_title:Thrombosis research
pub_type: 信件
doi:10.1016/j.thromres.2016.05.020
更新日期:2016-07-01 00:00:00
abstract:INTRODUCTION:Animal models of thrombosis and hemostasis are critical for target validation in pharmaceutical research. Guinea pig haemostatic mechanisms, such as the platelet thrombin receptor repertoire, resemble those of humans. Measuring the performance characteristics of marketed antithrombotic drugs in guinea pig ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2008.03.010
更新日期:2008-01-01 00:00:00
abstract::The levels of protein C (PC) and other coagulation factors were monitored during endotoxin-induced disseminated intravascular coagulation (DIC) in the dog. Initial evaluation of the effectiveness of intradermal administration of bolus endotoxin quantities into the dog, demonstrated induction of DIC in the canine, with...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(89)90062-5
更新日期:1989-08-01 00:00:00
abstract::We provide a centralised thrombophilia screening service with sample transfer by courier or first class mail, a practice common to many centres. Sample quality is of prime importance, thus we have assessed the effect of delayed sample handling upon the haemostatic variables within our thrombophilia profile. This compr...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(97)00187-4
更新日期:1997-09-15 00:00:00
abstract:OBJECTIVES:To measure the variations of different parameters in the hemostatic system and to analyze their roles in the development of hemostatic disorder in patients with orthotopic liver transplantation (OLT) procedures routinely performed without venovenous bypass. METHODS:The blood coagulation and fibrinolysis par...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2007.10.002
更新日期:2008-01-01 00:00:00
abstract::Clot lysis induced by streptokinase has been studied and the influences of pH and the concentrations of plasminogen, fibrinogen and buffer composition investigated. Variations in the concentrations of plasminogen strongly effect the SK apparent activity, maxima being obtained at different plasminogen concentrations li...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(91)90071-4
更新日期:1991-12-15 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::We have previously reported on a microassay based on human kininogens as cysteine proteinase inhibitors (CPIs), which could quantify partially purified kininogens from different biological fluids (J Pharmacol Meth 26, 113-124, 1991). In the present study we describe a functional method that, when assuming a 1:1 stoich...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(96)00073-4
更新日期:1996-05-01 00:00:00
abstract::This work was designed to investigate the influence of rat platelet adrenoceptors on the early thrombin-induced serotonin release. In washed platelets prelabeled with [3H]-serotonin, adrenaline and isoproterenol both inhibited, in a dose-dependent manner, the early thrombin-induced secretion of serotonin. Inhibitory r...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(85)90325-1
更新日期:1985-10-15 00:00:00
abstract::Eicosapentaenoic acid (EPA) has been reported to have a potent anti-aggregatory activity and to be efficiently metabolized by 12-lipoxygenase, not by cyclooxygenase in platelets. In vitro effect of 12-lipoxygenase metabolites of EPA on platelet function was studied and compared with those of arachidonic acid (AA). The...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(86)90248-3
更新日期:1986-02-01 00:00:00
abstract::Studies of the factors affecting the first recurrence of ischemic stroke have reported inconsistent findings. Types of initial stroke and the racial differences in study samples are among the explanations that may account for this inconsistency. The aims of this study were to estimate the cumulative recurrence rates o...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(99)00146-2
更新日期:2000-02-01 00:00:00
abstract::The effect of alpha-tocopherol on various endothelial cell functions was evaluated in vitro using cultures of human umbilical vein endothelial cells. Prostacyclin synthesis, plasminogen activator activity and von Willebrand factor activity were evaluated in control and alpha-tocopherol supplemented cultures. Alpha-toc...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(88)90203-4
更新日期:1988-05-15 00:00:00
abstract::A rapid method is described for the production of a human marrow cell suspension highly enriched in megakaryocytes. These concentrates were incubated with radiolabelled amino-acids, and cell lysates were then analysed for fibrinogen synthesis. Neosynthesized proteins were detected by immunoprecipitation, immuno-affini...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(85)90133-1
更新日期:1985-05-15 00:00:00
abstract::Two functional assays for protein C inhibitor (PCI) were evaluated in parallel for the same plasma samples. One assay is specific for active PCI and measures its ability to form complexes with activated protein C (APC) in the presence of heparin (España et al, Thromb Res 64, 309, 1991) (Method A). After incubation of ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(93)90079-4
更新日期:1993-06-01 00:00:00
abstract:INTRODUCTION:High concentrations of N-terminal-pro-brain natriuretic peptide (NT-proBNP) are found in patients with right ventricular overload. Right ventricular overload may be the result of large perfusion defects in patients with pulmonary embolism (PE). NT-proBNP levels are associated with poorer outcome in patient...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2011.02.014
更新日期:2011-06-01 00:00:00
abstract::We investigated the intracellular processes of the shape change in human megakaryoblastic leukemic cells, MEG-01, by platelet agonists. Thrombin induced the formation of many pseudopods. This shape change was also induced by phorbol 12-myristate 13 acetate (TPA) and weakly by Ca2+ ionophore, A23187, but not by ADP, co...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90130-3
更新日期:1992-10-01 00:00:00
abstract:INTRODUCTION:We showed previously that the prothrombotic effect of one hour aldosterone (ALDO) infusion in rats was only partially mediated by the mineralocorticoid receptor (MR). Bearing in mind that ALDO potentiates the effects of angiotensin II (Ang II), in the present study we investigated the role of Ang II recept...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2015.12.008
更新日期:2016-02-01 00:00:00
abstract::Fasting plasma homocysteine level and the related clinical findings were analysed in 240 consecutive patients with venous thromboembolism. Hyperhomocysteinemia, defined as a plasma level above 20 micromol/l (corresponding to the percentile 95th in the controls), was present in 11.2% of the patients. Plasma homocystein...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(02)00096-8
更新日期:2002-04-15 00:00:00
abstract::We have determined that pp60c-src, a protein tyrosine kinase abundant in normal platelets, is present at comparable levels in platelets that are deficient in dense granules (Hermansky-Pudlak syndrome). Relative quantitation of pp60c-src was performed by immunoblot analysis after protein separation by sodium dodecyl su...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90227-2
更新日期:1992-01-01 00:00:00
abstract::The use of platinum based chemotherapy in ovarian malignancy and other cancer types is known to be associated with deep vein thrombosis. In a prospective study of 47 patients with ovarian cancer of International Federation of Gynecology and Obstetrics stage Ib-IV, serial rheological parameters were determined (plasma ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(98)00022-x
更新日期:1998-04-15 00:00:00
abstract:INTRODUCTION:Maximal exercise may be a trigger for cardiovascular events. The aim of the study was to investigate changes in blood coagulation and fibrinolysis following maximal short-term exercises with different durations up to 90 s. METHODS:A total of 15 healthy nonsmokers underwent three isokinetic maximal tests o...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(03)00283-4
更新日期:2003-03-15 00:00:00
abstract:BACKGROUND/AIM:It is believed that the amniotic fluid-derived TF, in the case of amniotic fluid embolism (AFE), contributes to acute disseminated intravascular coagulation (DIC) and obstetric shock in the mother. However, the role of amniotic fluid-derived contact phase coagulation factors that irrupt into the bloodstr...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.10.014
更新日期:2015-04-01 00:00:00
abstract:INTRODUCTION:Reports on the prevalence and risk factors of atherothrombotic events (AEs) are conflicting in persons with hemophilia (PWH). METHODS:This study evaluated the prevalence and risk factors of AEs among 1054 male hemophilia patients, using data collected from Taiwan's National Health Insurance Research Datab...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.12.027
更新日期:2015-03-01 00:00:00
abstract:INTRODUCTION:Circulating levels of fibrinogen are associated with atherosclerosis and predict future coronary heart disease and stroke. Levels of fibrinogen are correlated among family members, suggesting a heritable component. Variants of the beta-fibrinogen gene subunit on 4q28 are associated with fibrinogen levels b...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(03)00288-3
更新日期:2003-04-15 00:00:00
abstract:INTRODUCTION:Thrombin, a serine protease, plays an important role in such actions as coagulation, cell proliferation and inflammation. It has been sporadically reported that endothelial cells, when stimulated by thrombin via protease-activated receptors (PAR), express various mediators and proteins including cytokines,...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2005.11.008
更新日期:2006-01-01 00:00:00
abstract::Lp(a) lipoprotein contains a unique apolipoprotein, apolipoprotein (a), that has a striking homology with plasminogen. This homology has brought forward speculations as to an inhibitory effect of Lp(a) lipoproteins on fibrinolysis. The present investigation was undertaken to study the influence of Lp(a) lipoprotein on...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90080-t
更新日期:1992-11-01 00:00:00