Abstract：
:Among the nine ellagitannins, rugosin E was the most potent platelet aggregating agent with an EC50 of 1.5 +/- 0.1 microM in rabbit platelets and 3.2 +/- 0.1 microM in human platelets. The aggregations caused by rugosin E and ADP were inhibited by EGTA, PGE1, mepacrine, sodium nitroprusside and neomycin, but not by indomethacin, verapamil, TMB-8, BN52021 and GR32191B. Rugosin E-induced thromboxane formation was suppressed by indomethacin, EGTA, PGE1, verapamil, mepacrine, TMB-8 and neomycin. ADP-scavenging agents, such as CP/CPK and apyrase inhibited concentration-dependently ADP (20 microM)-, but not rugosin E (5 microM)-induced platelet aggregation. In thrombin (0.1 U/ml)-treated and degranulated platelets, rugosin E and ADP still caused 63.5 +/- 3.0% and 61.2 +/- 3.5% of platelet aggregation, respectively. Selective ADP receptor antagonists, ATP and FSBA inhibited rugosin E- and ADP-induced platelet aggregations in a concentration-dependent manner. Both rugosin E and ADP did not induce platelet aggregation in ADP (1 mM)-desensitized platelets. In contrast to ADP, rugosin E did not decrease cAMP formation in washed rabbit platelets. Both rugosin E and ADP did not cause phosphoinositide breakdown in [3H]myo-inositol-labeled rabbit platelets. In fura-2/AM-load platelets, both rugosin E and ADP induced increase in intracellular calcium concentration and these responses were inhibited by ATP and PGE1. All these data suggest that rugosin E may be an ADP receptor agonist in rabbit platelets.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Teng CM,Kang YF,Chang YL,Ko FN,Yang SC,Hsu FLsubject
Has Abstractpub_date
1997-03-01 00:00:00pages
555-61issue
3eissn
0340-6245issn
2567-689Xjournal_volume
77pub_type
杂志文章abstract：:A fully representative and viable platelet population was isolated from the blood of 15 baboons by a multiwash procedure, and labelled with In-111-oxine. The recovery of the total platelet population in the circulation was 85% +/- 9. Mean platelet life span was 146 hr +/- 13. Correcting for plasma radioactivity (alway...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-06-24 00:00:00
abstract：:Although there is evidence that altitude increases the platelet count, its effect on the platelet precursor stimulating factor, thrombopoietin (TPO), is unclear. Unlike erythropoietin, TPO appears largely unresponsive to exogenous signals. In a study in 16 healthy volunteers, we report the effects of altitude exposure...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-02-0086
更新日期：2005-01-01 00:00:00
abstract：:Recurrent pregnancy loss (PL) is associated with maternal thrombophilia and prophylaxis with low molecular weight heparin (LMWH) can improve pregnancy outcome in this setting. The aim of this study was to investigate the modulation of systemic hemostatic parameters by enoxaparin in women with recurrent PL and to evalu...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH05-03-0212
更新日期：2005-11-01 00:00:00
abstract：:A randomised, prospective, double-blind trial was performed, to compare the safety and efficacy of a new low-molecular-weight heparin (LMWH) Bemiparin and standard unfractionated heparin (UFH), for the prophylaxis of postoperative venous thromboembolism. 300 patients scheduled to undergo elective hip arthroplasty were...
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：2000-04-01 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：:Analysis of platelet membrane proteins and glycoproteins by SDS polyacrylamide gel electrophoresis was carried out before and after treatment with thrombin. Extended incubation with thrombin (in the presence of EDTA or adenosine, which inhibit aggregation) produced extensive changes in the bands observed. With incuba...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1977-06-30 00:00:00
abstract：:Mature circulating endothelial cells (CECs) are novel cellular markers of endothelial damage/dysfunction. The two main techniques of CEC enumeration are flow cytometry (FC) and immunomagnetic bead (IB) isolation. Both quantify CECs accurately, but a direct comparison of both methods has not been reported. We sought to...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH06-04-0185
更新日期：2006-07-01 00:00:00
abstract：:Hemolytic uremic syndrome (HUS), the leading cause of acute renal failure in children (< 3 years), is mainly related to Shiga toxins (Stx)-producing Escherichia coli (STEC) infections. STEC are confined to the gut resulting in hemorrhagic colitis, whereas Stx are delivered in blood to target kidney and brain, with unc...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0039-3400301
更新日期：2020-01-01 00:00:00
abstract：:The aim of this observational cohort study was to specify the risk of the vitamin K antagonist (VKA) phenprocoumon during first trimester of pregnancy, in particular to estimate the risk of birth defects and spontaneous fetal loss. Four hundred eight pregnancies with phenprocoumon exposure were compared to 1,642 pregn...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH16-11-0838
更新日期：2017-05-03 00:00:00
abstract：:Extensive contact between blood and artificial surfaces causes platelet activation and depletion. The aim of the present study was to test the efficacy of Ro 44-9883, a potent and selective peptidomimetic GPIIb-IIIa antagonist, in preventing platelet loss in guinea pigs undergoing extracorporeal circulation (ECC) with...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1993-11-15 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
abstract：:The mechanism underlying a hyperreactive platelet phenotype remains unknown. Since serotonin has been shown to influence platelet biology and atherothrombosis, we sought to investigate the association of platelet serotonin transporter number, binding affinity, and uptake kinetics with platelet aggregation. A total of ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH12-03-0202
更新日期：2013-01-01 00:00:00
abstract：:In a recent study, we purified and cloned a newly identified bioactive factor that stimulates prostacyclin (PGI2) production by vascular endothelial cells (ECs) using conditioned medium (CM) from cultured human diploid fibroblast cells. The present study was undertaken to clarify whether PSF is expressed in ECs and va...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：:Heparin is often used as an adjunct to thrombolytic therapy in order to prevent reocclusion of the patent vessels in patients with thrombotic disease. Controversy exists as to whether heparin is required for effective clot lysis with tissue-type plasminogen activator, while in vitro data and small scale clinical trial...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:Human platelets were separated into subpopulations using continuous flow electrophoresis, which uses electrophoretic mobility as the separative parameter. The platelets with the greatest electrophoretic mobility showed higher amounts of total sialic acid than the less electrophoretically mobile subpopulation (74.3 +/-...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1993-01-11 00:00:00
abstract：:Use of oral contraceptives (OC) that combine a progestogen with synthetic ethinyl estradiol (EE) is associated with increased risk of venous thromboembolism. NOMAC/E2 is a new monophasic OC that combines nomegestrol acetate (NOMAC), a highly selective progestogen, with 17β-estradiol (E2). The study objective was to co...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,随机对照试验
doi：10.1160/TH10-05-0327
更新日期：2011-03-01 00:00:00
abstract：:The endothelial protein C receptor (EPCR) is expressed by trophoblast cells. Mid-gestation pregnancy loss is described in animals with a haemochorial placenta lacking EPCR. The A6936G allele of the EPCR gene (PROCR) may be associated with lower EPCR densities on trophoblasts, but data are lacking for its effect on the...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH-09-04-0224
更新日期：2009-10-01 00:00:00
abstract：:We investigated the molecular basis for factor VII (FVII) deficiency in Israel and found that 13 patients were homozygous and 10 heterozygous for a C to T substitution at nucleotide 10648 of the FVII gene. This predicted an Ala244Val change and was associated with decreased FVII activity and antigen level. Of the 36 A...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1996-09-01 00:00:00
abstract：:Syndecan-4 (ryudocan) is a cell-surface heparan sulfate proteoglycan, which plays an important role in a variety of biological functions including regulation of blood coagulation. cell adhesion, and cell growth. In this study, we measured plasma levels of syndecan-4 in patients with acute myocardial infarction using a...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2001-05-01 00:00:00
abstract：:Ultra-low-molecular-weight heparins (ULMWHs) with better efficacy and safety ratios are under development; however, there are few structural data available. The main structural features and molecular weight of ULMWHs were studied and compared to enoxaparin. Their monosaccharide composition and average molecular weight...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH12-11-0795
更新日期：2013-03-01 00:00:00
abstract：:Increased plasma plasminogen activator inhibitor-1 (PAI-1) has been implicated in the development of vascular disease. In type 2 diabetes mellitus high PAI-1 levels are associated with increased plasma concentrations of free fatty acids (FFA) and triacylglycerol indicating an association or a causal relationship. To a...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1160/TH03-07-0457
更新日期：2003-09-01 00:00:00
abstract：:Heparin and low-molecular-weight heparin (LMWH) are commonly monitored by determination of activated clotting times or chromogenic assays. Despite their wide use, these assays determine the biological activity and not the concentration of the anticoagulants. They may be inaccurate in some circumstances such as certain...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH09-03-0168
更新日期：2009-11-01 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：:Multiple clinical trials have proven that thrombolytic therapy is an effective treatment for acute myocardial infarction. Spontaneous intracranial hemorrhage (ICH) occurs in a small percentage of patients as a result of the treatment. The etiology of the ICH is unknown and there is currently no established experimenta...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:Patterns of VIIIR:AG in the plasma and its fractions, cryoprecipitate and cryosupernatant, from various types of von Willebrand's disease (vWd) were observed by SDS 1.5% polyacrylamide gel electrophoresis - cross immunoelectrophoresis (SDS PAGE - CIE). VIIIR:AG in normal cryoprecipitate showed several precipitin peaks...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-06-30 00:00:00
abstract：:The present studies measured bleeding times, without venous occlusion, in a series of patients, whose bleeding times (+ venostasis) consistently exceeded 20 min. During these tests, the amount of blood loss (expressed as mg/min) was also quantitated. To allow comparison, normal controls were studied before and followi...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1990-06-28 00:00:00
abstract：:A multicenter study of various types of von Willebrand's disease (vWD) was conducted in order to compare the different electrophoretic techniques used to evaluate von Willebrand factor multimers in plasma. Seven laboratories participated in the blind study of eight plasma samples from two healthy subjects and six vWD ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-12-17 00:00:00
abstract：:Thrombin regulation in newborns remains incompletely understood. We studied tissue factor-initiated thrombin formation in cord plasma in vitro, and the effects of Factor V(Leiden) (FVL) heterozygosity on thrombin regulation both in vitro and in vivo in newborns. Pregnant women with known thrombophilia (n=27) were enro...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH05-05-0375
更新日期：2006-03-01 00:00:00
abstract：:Recombinant factor VIIa (rFVIIa; Novoseven) is used for treatment of hemophilia patients with inhibitors. There are poorly defined differences in clinical responsiveness between individuals. Prior to licensure in the United States, rFVIIa was available through the compassionate use program, during which two patients d...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:Catabolism of coagulation factor VIII (FVIII) is mediated by low-density lipoprotein receptor-related protein (LRP). The ligand-binding sites of LRP are formed by complement-type repeats (CR), and CR clusters II and IV bind most of LRP ligands. FVIII contains two major LRP-binding sites located in the A2 and A3 domain...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2007-12-01 00:00:00
