Abstract：
:Optimal conditions for a method to simultaneously measure aggregation in 96 samples using a microplate reader were developed. The temperature of the assay was set at 25 degrees C, the optimal platelet concentration range was determined to be from 1-3 x 10(8) per mL, the assay volume was determined to be best at 100 microL and an agitation rate of setting #5 on the vortex was found to yield the most reliable aggregation response. After these initial assay parameters were established, EC50 values for standard platelet agonists including ADP, thrombin, collagen and thrombin receptor activating peptides were determined using the plate assay and compared to those obtained by measuring light transmittance in an aggregometer. The results were quantitatively similar, and qualitatively the shapes of the aggregations as monitored by both methods were characteristic of those expected for each agonist. The use of this assay was then extended to quantitate the inhibition of aggregation by antagonists of the fibrinogen receptor as well as by an inactive thrombin receptor peptide and by antibodies against the thrombin receptor. This method provided useful data for characterization of both platelet agonists and antagonists and should be useful for future platelet aggregation studies.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Bednar B,Condra C,Gould RJ,Connolly TMdoi
10.1016/0049-3848(95)93881-ysubject
Has Abstractpub_date
1995-03-01 00:00:00pages
453-63issue
5eissn
0049-3848issn
1879-2472pii
0049-3848(95)93881-Yjournal_volume
77pub_type
杂志文章abstract：AIM:Postprandial platelet activation was related to postprandial insulin rather than glucose levels in a previous meal insulin study in type 2 diabetes mellitus (T2DM). We therefore compared postprandial platelet activation in type 1 (T1DM) patients without insulin secretion and T2DM patients with high postprandial ins...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.03.009
更新日期：2016-05-01 00:00:00
abstract：BACKGROUND:Coronary collateral circulation (CCC) plays an important role in protecting myocardium from ischemic damage. The studies on factors which impact on CCC might be of great clinical interest. The aim of the present study was to evaluate endothelin-1 (ET-1) as a potential predictor for poor or good CCC in patien...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.04.007
更新日期：2016-06-01 00:00:00
abstract：:Epsilon-amino-caproic acid (EACA) induces a clinically-useful anti-haemorrhagic, mildly thrombotic state while ellagic acid (EA) induces a severe hypercoagulable one. Reversal of these states may on occasion be necessary. The effectiveness of the antiplatelet drugs, aspirin and dipyridamole (ASA/D), in reducing thromb...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(96)00098-9
更新日期：1996-06-15 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：: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：INTRODUCTION:Global clotting assays may reflect an individual's net hemostatic balance and could contribute to prothrombotic and hemorrhagic risk assessment. In this research, a global assay that measures both coagulation and fibrinolytic capacities was developed and investigated. MATERIALS AND METHODS:In the Clot For...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2004.12.009
更新日期：2005-01-01 00:00:00
abstract：BACKGROUND:Impaired endothelial-dependent flow-mediated dilatation (FMD) has been used to demonstrate endothelial dysfunction in a wide variety of cardiovascular disease, but previous studies have excluded patients with atrial fibrillation(AF). We therefore hypothesised that endothelial dysfunction exists in AF and tha...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.09.008
更新日期：2008-01-01 00:00:00
abstract：:Coagulation is initiated by tissue factor (TF). Coagulant TF is constitutively expressed by extravascular cells, but there is increasing evidence that TF can also be present within the blood, in particular during pathological conditions. Such TF is exposed on circulating cell-derived vesicles, and its presence has bee...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2012.08.281
更新日期：2012-10-01 00:00:00
abstract：:Red blood cells have historically been viewed as innocent bystanders in the process of blood coagulation and thrombin generation; however a century of clinical evidence linking red blood cells to thrombosis suggests the contrary. In this brief review, the biochemical evidence for red blood cell involvement in thrombin...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2013.01.023
更新日期：2013-05-01 00:00:00
abstract：:A nephelometric method is described for determination of plasminogen and two types of plasmin inhibitors in human plasma having different affinity toward plasmin. This method is based on the kinetic analysis of effects of whole plasma and plasmin inhibitor fraction obtained from plasma on the activity of exogenously a...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90395-x
更新日期：1983-04-01 00:00:00
abstract：:The antithrombotic actions of selective factor Xa (FXa) inhibitors, recombinant tick anticoagulant peptide (rTAP) and DX-9065a, were evaluated in experimental thrombosis models in anesthetized rats. In the first model, thrombosis was induced by exposing flowing blood to a silk thread anchored in an arteriovenous (AV) ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(96)00112-0
更新日期：1996-07-15 00:00:00
abstract：:A prolongation of the thrombin clotting time by at least 25% was found in the presence of 8 of 26 IgG myeloma proteins, 2 of 5 IgA proteins and 1 of 10 macroglobulins, in a concentration of 10 mg/ml. Normal pooled immunoglobulin in concentrations up to 83 mg/ml were inactive. 2 IgG and 2 IgM monoclonal immunoglobulins...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90315-3
更新日期：1984-07-01 00:00:00
abstract：:Plasma membranes of pig platelets were isolated and subjected to solubilization with digitonin. Binding of [3H]ketanserin to the solubilized membrane fraction, optimal at pH 7.5, was time and protein dependent and was greatly reduced by increasing ionic strength of the incubation buffer. Saturation analysis and inhibi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90253-1
更新日期：1985-09-15 00:00:00
abstract：:Heparinase degraded heparin fragments (HDHF) are enriched with a UV chromophore and can be utilized as calibrators to determine the molecular weight profile of low molecular weight heparins (LMWH's). In a standard protocol (1), the second to the last peak is assumed to be a hexasaccharide with a molecular weight of 1....
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90222-a
更新日期：1993-04-01 00:00:00
abstract：INTRODUCTION:Monocyte- and microparticle (MP)-associated tissue factor (TF) is upregulated in diabetes. Lipopolysaccharide (LPS) induces expression of TF and alternatively spliced TF (asTF) and increases MP release from monocytes. Using LPS-stimulated TF-bearing human monocytes, we examined whether glibenclamide, a sul...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.07.007
更新日期：2011-11-01 00:00:00
abstract：:The purpose of this study was to investigate the effects of tissue factor (thromboplastin), the initiating factor of the extrinsic clotting system, on angiogenesis in vivo and in vitro. In vivo angiogenesis was examined using a diffusion chamber assay in rats. After a week of implantation of the diffusion chambers con...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00101-2
更新日期：1999-11-01 00:00:00
abstract：INTRODUCTION:Venous thromboembolism (VTE) is a frequent clinical event in patients with gynecologic cancer. However, studies that exclusively address the incidence of VTE according the type of gynecologic cancer are poorly reported. OBJECTIVE:To analyze the incidence of VTE and the associated factors in women with dif...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2019.11.009
更新日期：2020-01-01 00:00:00
abstract：:Defibrotide both "in vitro" and "ex vivo" decreases PMN adhesion to nylon columns. This activity is blunted by 8-phenyltheophylline, a known blocker of adenosine A1/A2 receptors, suggesting that Defibrotide acts on that kind of receptors. Indomethacin, a blocker of PGI2 synthesis, did not cancel DFT's activity, sugges...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(95)00178-t
更新日期：1995-11-15 00:00:00
abstract：BACKGROUND:The Clauss fibrinogen method and thrombin clotting time (TCT) are still routinely used in patients with cirrhosis to define fibrinogen concentration and clotting potential. The thromboelastometric functional fibrinogen FIBTEM assay evaluates the strength of fibrin-based clots in whole blood, providing inform...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.04.003
更新日期：2015-06-01 00:00:00
abstract：:Lipoprotein-Associated Coagulation Inhibitor (LACI) is a factor Xa dependent inhibitor of the factor VII(a)/Tissue Factor catalytic complex. Deduced from partial cDNA sequence, LACI's amino acid sequence has recently been reported. Northern blot analysis showed LACI cDNA hybridizes to RNAs of 1.4 and 4.0 kb in size. T...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90454-4
更新日期：1989-07-01 00:00:00
abstract：:The hemolytic uremic syndrome involves the presence of Shiga toxin producing strains of Escherichia coli and is associated with thrombocytopenia, platelet activation, and microthrombi formation. We have, therefore, investigated the ability of Shiga toxin isotypes 1 and 2 to cause or enhance platelet aggregation under ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00191-2
更新日期：2000-06-01 00:00:00
abstract：:Platelets from rats fed a diet high in linoleic acid (6%) bound increased amounts of fibrinogen on stimulation with ADP, compared to those from rats fed diets with low (2%) or no linoleic acid. However, this increased fibrinogen binding was associated with a decrease in platelet aggregation induced by ADP. Changes in ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90107-5
更新日期：1984-04-01 00:00:00
abstract：INTRODUCTION:Viscoelastometry enables rapid evaluation of coagulopathy in settings such as cardiac surgery but may be influenced by red cell concentration. METHODS:In order to study the effects of supra-physiological red cell concentrations on viscoelastometry, we compared ROTEM® viscoelastometry and plasma coagulatio...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.07.006
更新日期：2013-08-01 00:00:00
abstract：INTRODUCTION:Time in therapeutic range (TTR) for international normalized ratio (INR) is an accepted quality measure of anticoagulation control in patient populations, but its usefulness for predicting stroke and bleeding in individuals is not well understood. MATERIALS AND METHODS:In a nested case control analysis am...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2011.08.024
更新日期：2012-06-01 00:00:00
abstract：BACKGROUND:An association between high red cell distribution width (RDW) and venous thromboembolism (VTE) has been observed. However, it is not known whether this association differs within various manifestations of VTE, nor if there is an interaction between RDW and thrombophilia abnormalities on the risk of VTE. AIM...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.07.020
更新日期：2015-09-01 00:00:00
abstract：INTRODUCTION:The epidemiology of tamoxifen and venous thromboembolism (VTE) is not well understood, and most data on tamoxifen toxicity are from adjuvant clinical trials. This study examined the relationship between the duration of tamoxifen use in female patients with breast cancer and the risk of VTE in a large popul...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.11.025
更新日期：2012-07-01 00:00:00
abstract：INTRODUCTION:Coagulation factor XIII (FXIII) is a fibrin-stabilizing factor, which contributes to hemostasis, wound healing, and maintenance of pregnancy. Accordingly, patients with congenital FXIII deficiency manifest a life-long bleeding tendency, abnormal wound healing and recurrent miscarriage. In order to understa...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2012.05.003
更新日期：2012-09-01 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: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：:The lupus ratio (LR) test is a normalized ratio of the clotting times obtained with low and high phospholipid (PL) concentrations, where the test plasma is mixed 1:1 with normal pooled plasma (NP). As an integrated, automated, and computer-assisted assay, this principle has been applied to the dilute activated partial...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00420-0
更新日期：2002-01-15 00:00:00
