Abstract:
:DMP 728 is a potent and specific platelet GPIIb/IIIa antagonist. Like all GPIIb/IIIa antagonists, DMP 728 has a steep dose-response relationship in inhibiting platelet aggregation. In this study the relationships between receptor occupancy, platelet aggregation and bleeding time was determined in anesthetized dogs after intravenous infusion of DMP 728 (0.01 and 0.1 mg/kg/2h). Receptor occupancy was determined by flow cytometry using XL086, a novel fluorescent cyclic RGD peptide that binds to GPIIb/IIIa with high specificity and affinity (kd approximately 55 nM). Mean number of GPIIb/IIIa as determined by flow cytometric assay was approximately 53,8000 and 79,000 on unactivated and ADP-activated platelets respectively. After DMP 728 intravenous infusion, there was a dose- and time-dependent increase in receptor occupancy, inhibition of platelet aggregation and bleeding time. The two methods of receptor occupancy determination correlate with each other with an r2 = 0.78. The present data suggest that blockade of only 40-60% (approximately 40,000 receptors) of the total platelet GPIIb/IIIa was required to achieve > 90% inhibition of platelet aggregation and > 15 min bleeding time. Our results showed the potential clinical utility of this approach in the study of GPIIb/IIIa dose-response relationship.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Tsao PW,Bozarth JM,Jackson SA,Forsythe MS,Flint SK,Mousa SAdoi
10.1016/0049-3848(95)00029-1subject
Has Abstractpub_date
1995-03-15 00:00:00pages
543-56issue
6eissn
0049-3848issn
1879-2472pii
0049-3848(95)00029-1journal_volume
77pub_type
杂志文章abstract::In this study, we investigated the effects of a 3-min insulin incubation both at physiological and at supraphysiological concentrations on platelet aggregation and intraplatelet cyclic guanosine monophosphate (cGMP) levels both in the absence and in the presence of phosphodiesterase inhibition. We observed that insuli...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(96)00051-5
更新日期:1996-04-01 00:00:00
abstract::Fibrin is found in most solid tumours, and there is speculation regarding its role in tumour invasion and metastasis. An assay to quantitate fibrin levels in tissues would be a useful preliminary tool in assessing the above. Such an assay to quantitatively detect levels of fibrin in various types of canine tumour was ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(99)00054-7
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND:Clinical parameters, biomarkers and imaging-based risk stratification are widely accepted in pulmonary embolism(PE). The present study has investigated the prognostic role of simplified Pulmonary Embolism Severity Index (sPESI) score and the European Society of Cardiology (ESC) model. METHODS:This prospecti...
journal_title:Thrombosis research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.thromres.2014.02.032
更新日期:2014-06-01 00:00:00
abstract::Adenosine is an endogenous antiaggregating substance that influences the platelet responses through specific A-type receptors that activate adenylate cyclase increasing the levels of 3',5'-cyclic adenosine monophosphate (cAMP). In this study, we investigated whether adenosine can also influence the levels of 3',5'-cyc...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(01)00412-1
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:The right ventricular outflow tract (RVOT) velocity time integral (VTI), an echocardiographic measure of stroke distance, correlates with cardiac index. We sought to determine the prognostic significance of low RVOT VTI on clinical outcomes among patients with acute pulmonary embolism (PE). MATERIALS AND METHO...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2020.06.049
更新日期:2020-11-01 00:00:00
abstract:INTRODUCTION:We recently proposed a scale for assessment of patient-relevant functional limitations following an episode of venous thromboembolism (VTE). Further development of this post-VTE functional status (PVFS) scale is still needed. METHODS:Guided by the input of VTE experts and patients, we refined the PVFS sca...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2020.03.020
更新日期:2020-06-01 00:00:00
abstract::It is known that a low-molecular-weight heparin (LMWH) is more effective than unfractionated heparin in unstable angina/non-Q-wave myocardial infarction (UA/NQMI) and the platelet GPIIb/IIIa receptors play an important role in acute myocardial infarction (AMI). Therefore, enoxaparin might have a similar advantage over...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(01)00242-0
更新日期:2001-05-01 00:00:00
abstract::An anticoagulant activity was identified and isolated from the leaves of a West African plant, Aspilia africana by gel filtration on Sephadex G-100. The anticoagulant factor had an apparent molecular weight of approximately 60,000 d. Upon incubation with plasma, it prolonged the partial thromboplastin time, prothrombi...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90455-5
更新日期:1987-08-15 00:00:00
abstract::Selective serotonin reuptake inhibitors (SSRIs) have been reported to reduce platelet aggregation induced by ADP. ADP induces platelet aggregation through two purinergic receptors P2Y1 and P2Y12. We characterized the inhibitory properties of SSRIs on ADP-induced platelet aggregation and investigated the effects of SSR...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2013.02.007
更新日期:2013-04-01 00:00:00
abstract::Chloroquine inhibited aggregation of rat blood platelets in a dose-dependent way. The inhibitory effect decreased, depending on the aggregation stimulus used, in the rank order of potency: ADP > thrombin > A23187. Effect of 1 millimolar chloroquine on A23187-stimulated aggregation was significantly decreased or comple...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(94)90270-4
更新日期:1994-06-01 00:00:00
abstract:INTRODUCTION:Antithrombin deficiency is associated with increased risk of venous thromboembolism (VTE). We aimed to identify variants causing antithrombin deficiency in a Danish population. MATERIALS AND METHODS:We performed Sanger sequencing and, in relevant cases, multiplex ligation-dependent probe amplification ana...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2019.01.022
更新日期:2019-03-01 00:00:00
abstract::Ajoene, the major antiplatelet compound derived from garlic, synergistically potentiates the antiaggregatory action of prostacyclin, forskolin, indomethacin and dypiridamole. For collagen-induced platelet aggregation in human PRP, the ID50 for ajoene is 95 +/- 5 microM. However, in the presence of the antiaggregatory ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(86)90259-8
更新日期:1986-05-01 00:00:00
abstract::Human tissue plasminogen activator (t-PA) was shown to bind specifically to human osteosarcoma cells (HOS), and human epidermoid carcinoma cells (A-431 cells). Crosslinking studies with DTSSP demonstrated high molecular weight complexes (130,000) between 125I-t-PA and cell membrane protein on human umbilical vein endo...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90136-z
更新日期:1990-07-15 00:00:00
abstract:BACKGROUND:Clinical and epidemiological studies have associated selective COX-2 inhibitors with an increased risk of cardiovascular events. There are no clinical studies on the possible effects of these drugs on secondary hemostasis. The hypothesis for this study is that the use of selective COX-2 inhibitors could affe...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.thromres.2009.01.017
更新日期:2009-06-01 00:00:00
abstract:INTRODUCTION:To evaluate the pathogenetic role of tissue factor (TF), tissue factor pathway inhibitor (TFPI), and neutrophil elastase in acute respiratory distress syndrome (ARDS), as well as to test the hypothesis that TFPI levels modified by neutrophil activation are not sufficient to prevent TF-dependent intravascul...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章
doi:10.1016/s0049-3848(03)00151-8
更新日期:2003-01-25 00:00:00
abstract:BACKGROUND:Unfractionated heparin (UFH) and low molecular weight heparin constitute fundamental anticoagulants during hemodialysis (HD). We aimed to investigate the effect of UFH and enoxaparin on plasma levels of prothrombin fragment 1+2 (PF 1+2) and thrombin/antithrombin complex (TAT) as markers of intravascular thro...
journal_title:Thrombosis research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.thromres.2007.12.014
更新日期:2009-02-01 00:00:00
abstract::Effects of vascular constriction on thrombotic occlusion was evaluated using rat mesenteric arteries and video-recording system attached to the microscope. Topical application of norepinephrine of 1, 10 and 100 micrograms/ml reduced the arterial diameter dose dependently from 297 +/- 41 mu to 166 +/- 50, 87 +/- 18 and...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(86)90178-7
更新日期:1986-10-01 00:00:00
abstract::A tritium-labelled low molecular weight heparin fragment with an average molecular weight of 4000-6000 (Fragmin), was fractionated into its high and low affinity forms for antithrombin. The fractions obtained were injected into rabbits, and the plasma half-life (t1/2) volume of distribution (Vd), area under the curve ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90345-8
更新日期:1987-10-01 00:00:00
abstract::Heat treatment is employed to diminish the transmission of hepatitis when blood products are administered. It is possible that such a procedure could reduce the biological activity of the proteins and induce changes in structure and aggregation state. We have therefore made in vitro and pharmacokinetic studies of heat...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90435-x
更新日期:1987-12-15 00:00:00
abstract::Tissue factor is an ubiquitous membrane-anchored glycoprotein that initiates blood coagulation by forming a complex with circulating factors VII and VIIa. Under normal circumstances, endothelial cells do not express tissue factor but, in some pathological situations, when the endothelium or the monocytes are exposed t...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(94)90086-8
更新日期:1994-01-15 00:00:00
abstract::The effects of extracellular sodium on platelet aggregation and calcium mobilization in platelets stimulated with either rattlesnake (Crotalus atrox) lectin (RSL) or alpha-thrombin were compared. The absence of extracellular sodium had no effect on platelet aggregation or calcium mobilization in response to all levels...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(91)90008-k
更新日期:1991-11-01 00:00:00
abstract::A frequent complication of venous access devices (VADs) is axillary-subclavian venous thrombosis. To study this problem we have compared blood drawn through VADs with peripheral blood samples in a group of oncology patients with venographically demonstrated venous damage (N = 14) and a group with normal venograms (N =...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(95)00125-b
更新日期:1995-08-15 00:00:00
abstract:INTRODUCTION:Hydrogen sulfide (H2S) known as a gasotransmitter is increasingly recognized for its anti-adhesive, anti-inflammatory and vasoactive properties. Due to these properties, we analysed anti-thrombotic effects of H2S and the participation of the nitric oxide synthase (NOS)-pathway. MATERIALS AND METHODS:In in...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2013.07.010
更新日期:2013-08-01 00:00:00
abstract:INTRODUCTION:Guidelines recommend the assessment of stroke and bleeding risk before initiating warfarin anticoagulation in patients with atrial fibrillation. Many of the elements used to predict stroke also overlap with bleeding risk in atrial fibrillation patients and it is tempting to use stroke risk scores to effici...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.05.034
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:Few studies investigated the relationship between fibrinolysis abnormalities and residual pulmonary perfusion defects after acute pulmonary embolism (PE). OBJECTIVE:To assess the fibrinolytic profile in patients with prior PE in relation to the extent of scintigraphically detectable residual perfusion abnor...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.07.013
更新日期:2014-09-01 00:00:00
abstract::Increased fibrinolytic activity is a well recognized constant finding observed during cardiopulmonary bypass (CPB). The purpose of the present work was to study and estimate the factors involved in the plasminogen activation and prekallikrein-kallikrein systems in a population of adult patients undergoing open heart s...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90018-6
更新日期:1992-09-01 00:00:00
abstract:BACKGROUND:The methodology of thromboprophylaxis post minimally invasive esophagectomy (MIE) is unclear. Thus, we compared the efficacy and safety of fondaparinux and nadroparin on the prophylaxis of venous thromboembolism (VTE) after MIE. MATERIALS AND METHODS:We conducted a randomized, double-blind, treatment-contro...
journal_title:Thrombosis research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.thromres.2018.04.001
更新日期:2018-06-01 00:00:00
abstract::18F-Fluorodesoxyglucose Positron-Emission-Tomography combined with Computed-Tomography (FDG PET/CT) might be an attractive tool for cancer screening in patients with venous thromboembolism (VTE), allowing non-invasive whole-body imaging. One of the frequent criticisms to the use of FDG PET/CT for screening is the pote...
journal_title:Thrombosis research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.thromres.2017.04.022
更新日期:2017-07-01 00:00:00
abstract::Platelet membrane glycoprotein V (GPV) was hydrolyzed during thrombin-induced platelet aggregation releasing a fragment GPVfl into the supernatant. Hydrolysis of GPV required catalytically active thrombin and was diminished by chemical modification of the fibrinogen binding site of thrombin. Half-maximal liberation of...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(85)90207-5
更新日期:1985-06-15 00:00:00
abstract::Clot adherence to peritoneal cavity mesothelium was studied in rats in an attempt to contribute to the problem of thrombus embolization. The adherence was decreased by platelets and the active constituent was identified as adenosine diphosphate which decreased the sticking of fibrin to cellular linings as well as to a...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(82)90100-1
更新日期:1982-12-15 00:00:00