Abstract：
:Using high-resolution real-time two-dimensional ultrasound, we have investigated the role of red cells in the growth of already established platelet aggregates under controlled flow conditions. Platelet rich plasma (PRP) was circulated in vitro in horizontally and vertically arranged tubing at mean shear rate ranging from 60 to 0 sec-1, and adenosine diphosphate (ADP) was used to induce platelet aggregation. ADP-induced platelet aggregates grew in size and tended to sediment as shear rate decreased, in particular, below 10 sec-1. At 0 sec-1 (stasis), large clusters of platelet aggregates formed. The addition of washed red cells to produce a hematocrit of only 2% significantly interfered with the growth and sedimentation of platelet aggregates as shear rate was reduced. Formaldehyde-hardened erythrocytes had a similar effect in preventing the growth of platelet aggregates, suggesting that mechanical collision of red cells with platelet aggregates may be the cause of growth inhibition. Therefore, the thrombotic process may be enhanced in red cell poor zones in circulation resulting from flow disturbances associated with vascular stenosis or within artificial organs and extracorporeal systems. The present study also suggested that red cell free PRP should be carefully administered therapeutically.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Machi J,Sigel B,Ramos JR,Justin JR,Feinberg H,LeBreton GC,Robertson AL Jrdoi
10.1016/0049-3848(84)90376-1subject
Has Abstractpub_date
1984-10-01 00:00:00pages
53-66issue
1eissn
0049-3848issn
1879-2472journal_volume
36pub_type
杂志文章abstract：:Alterations in the synthesis or enhanced inactivation of nitric oxide (NO) and an increase in endothelin-1 production lead to an imbalance that can induce arterial hypertension. Type II diabetes is characterized by impaired endothelium-dependent vasodilation and vascular disease. NO is produced through L-arginine path...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00237-7
更新日期：2001-04-15 00:00:00
abstract：INTRODUCTION:In patients with new symptoms in a leg previously affected by deep vein thrombosis (DVT), the presence of thrombus on ultrasound cannot be assumed to be due to recurrent thrombosis. Several parameters have been suggested to differentiate between acute and chronic thrombus on ultrasound, including measureme...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2005.02.011
更新日期：2006-01-01 00:00:00
abstract：BACKGROUND/AIMS:The plasminogen activator (PA)-plasmin system is primarily involved in fibrinolysis, but is also in the patho/physiological events in which breakdown of extracellular matrices is evoked topically. In this present study, we examined the expression of fibrinolytic factors, tissue-type PA (t-PA) and Type 1...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00370-x
更新日期：2001-11-15 00:00:00
abstract：:The fibrinolytic potential of tissue-type plasminogen activator (t-PA) either incorporated in a clot (endogenous) or added to the surrounding plasma (exogenous), was studied in an in vitro system consisting of 125I-labeled human plasma clots (200 microliters) immersed in human plasma (2 ml). Clot lysis was measured as...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90364-5
更新日期：1984-08-01 00:00:00
abstract：:We studied the stability of three markers of coagulation (prothrombin fragment 1 + 2 (F1 + 2), thrombin-antithrombin III complexes (TAT), and soluble fibrin (SF)) in stored frozen plasma, in addition to one marker of fibrinolysis (total fibrinogen degradation products and fibrin degradation products (TDP)). All marker...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(95)00242-1
更新日期：1996-01-15 00:00:00
abstract：:Whole blood electrical aggregometry (WBEA) has become an accepted method to gain quick information on platelet disorders. Compared to the optical method WBEA is closer to physiology and less complicated, but on the other hand more difficult to standardize. Different approaches have been attempted in the past to improv...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90232-2
更新日期：1990-12-15 00:00:00
abstract：INTRODUCTION:Many antithrombotic drugs may have a deleterious effect on normal haemostasis leading to bleeding complications. The aim of this study was to determine if sub-therapeutic (low) doses of antithrombotic agents, when administered in combination, have enhanced efficacy without augmentation of bleeding time. M...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2005.11.015
更新日期：2006-01-01 00:00:00
abstract：:The reunification of Germany in 1990 brought with it major challenges in terms of unifying the care offered to haemophilia patients. At that time, most of the treatment centres belonged to the largest regional hospitals. The centre for paediatric haemophilia patients in Leipzig was at the University Hospital. In this ...
journal_title：Thrombosis research
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.thromres.2013.10.018
更新日期：2014-11-01 00:00:00
abstract：:Porcine and human umbilical vein and adult blood vessels were studied for the presence and synthesis of factor VIII related antigen (VIIIR:Ag) and fibronectin (Fn) by immunofluorescence histology and immunoautoradiography. Investigation of human tissue confirmed the widespread distribution of VIIIR:Ag on the endotheli...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90042-7
更新日期：1983-02-01 00:00:00
abstract：:Microheterogeneity of antithrombin III (ATIII) was examined in pooled normal human plasma and serum by IEF/PA and immunoblotting techniques. A pattern consisting of 8 bands varying in isoelectric point from 4.7 to 5.2 was observed in citrated plasma following IEF in a pH range of 4-6. A similar pattern was observed in...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90331-7
更新日期：1985-10-15 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：BACKGROUND:It is well demonstrated that obesity is an independent risk factor for cardiovascular diseases. Recent studies have shown that obesity, insulin resistance and atherosclerosis are closely related phenomena in which low-grade inflammatory state and prothrombotic condition has pivotal roles. It has been shown t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2005.12.019
更新日期：2007-01-01 00:00:00
abstract：:The presence of Factor XIII subunit a was demonstrated in human monocytes by immunoperoxidase staining using specific antisera against Factor XIII and its subunits. This finding was verified by immunobiochemical techniques, as well. In an immunoblotting system after SDS polyacrylamide gel electrophoresis of denatured ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90069-6
更新日期：1985-02-01 00:00:00
abstract：:Lipoprotein-associated coagulation inhibitor (LACI) is a plasma-derived protein that inhibits the tissue factor/factor VIIa/calcium/phospholipid complex in a factor Xa-dependent manner. Recombinant LACI (rLACI) added exogenously to plasma prolonged the activated partial thromboplastin time (APTT) and prothrombin time ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90120-l
更新日期：1991-10-15 00:00:00
abstract：:To compare Canola a terrestrial (n-3) oil with fish oil (n-3) and common vegetable oil (n-6) in decreasing serum lipids and platelet aggregation, various oils were included in Chow-based diets and fed to rats in an eight-weeks feeding trial. The Chow diet contained 2% cholesterol along with either Canola, menhaden, sa...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90420-h
更新日期：1990-08-01 00:00:00
abstract：:While the role of platelets in hemostasis is well characterized from a biological perspective, the biophysical interactions between platelets and their mechanical microenvironment are relatively unstudied. The field of cellular mechanics has developed a number of approaches to study the effects of extracellular matrix...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2013.12.037
更新日期：2014-04-01 00:00:00
abstract：INTRODUCTION:Patients with multiple myeloma (MM) have an increased risk of thromboembolic events (TEE). Due to the complex nature of the prothrombotic state in MM, no single laboratory test has been designed to identify patients with the highest risk of developing TEE. Hence, this study is intended to assess the feasib...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.01.011
更新日期：2014-04-01 00:00:00
abstract：:Thirty-four derivatives of benzamidine were tested for their inhibitory activities on bovine and human thrombins using the chromogenic peptide substrate N-D-Phe-Pip-Arg-pNA. The inhibition constants of small molecular size inhibitors of comparatively low affinity as well as those of tight binding inhibitors did not di...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90302-5
更新日期：1984-12-01 00:00:00
abstract：:Initiation of clotting cascade by tissue factor (TF): Factor VII (FVII) complex is essential for hemostasis however pathologic expression of TF leads to thrombosis. In contrast, the contact pathway factor XII, and to the smaller extent FXI are dispensable for normal hemostasis but still contribute to pathologic thromb...
journal_title：Thrombosis research
pub_type：
doi：10.1016/j.thromres.2014.03.001
更新日期：2014-05-01 00:00:00
abstract：:Seven males with atherosclerotic disease received daily 1.6 g of the thromboxane antagonist BM 13.177 in two separate oral dosages over a period of four days. The drug significantly reduced elevated plasma levels of thromboxane B2, beta-thromboglobulin and platelet factor 4, whereas thromboxane B2 generation was only ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90229-9
更新日期：1984-08-15 00:00:00
abstract：:Major orthopaedic surgery is associated with an increased risk of venous thromboembolism. Direct oral anticoagulants (DOACs) are recommended as thromboprophylactic agents after orthopaedic surgery. Although routine monitoring of DOACs in general is not required, measuring DOAC concentration may be necessary in clinica...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/j.thromres.2016.01.012
更新日期：2016-03-01 00:00:00
abstract：:The von Willebrand factor (vWF) is found in plasma and in platelets. The concentration and multimeric composition of the vWF in platelets of 160 patients with bleeding tendency were examined since very little is known about the platelet vWF. For quantitative analysis of the platelet vWF, a modified ELISA was establish...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90212-s
更新日期：1992-03-01 00:00:00
abstract：:Ethamsylate possesses antihemorrhagic properties, but whether or not it directly activates blood platelets is unclear. Here we investigated the platelet activation potential of ethamsylate, by measuring membrane P-selectin expression with flow cytometry in human whole blood and also by immunofluorescence imaging of is...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(02)00353-5
更新日期：2002-09-15 00:00:00
abstract：:The effect of several vitamin K (Vit K) analogues on the aggregation of human platelets was examined. The analogues were potent inhibitors of aggregation induced by ADP, thrombin, collagen and arachidonate but were less active against aggregation induced by the calcium ionophore A23187. Vit K3 also prevented platelet ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90037-4
更新日期：1985-01-01 00:00:00
abstract：INTRODUCTION:Unfractionated heparin (UFH) potentiates platelet aggregation induced by some agonists. P2Y12 and P2Y1 receptors play a major role in amplifying platelet aggregation. We assessed the ability of cangrelor, a selective P2Y12 antagonist, A2P5P, a selective P2Y1 antagonist, and aspirin to block the potentiatin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2004.09.004
更新日期：2005-01-01 00:00:00
abstract：:Current therapies for treatment of hemophilia A involve infusion of factor VIII, but are ineffective for patients who develop inhibitory antibodies. We have previously proposed that bypassing the intrinsic pathway (VIIIa/IXa) with reversibly acylated factor Xa offers an improvement on existing therapies as it provides...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(97)00267-3
更新日期：1997-11-15 00:00:00
abstract：:Since the 19(th) century an association between cancer and thromboembolic events has been described, with a poorer survival prognosis. Production and secretion of procoagulant factors affect tumor biology and cancer-associated thrombosis. Tissue factor (TF) exerts coagulant and protease activated receptor (PAR)-depend...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(14)50013-8
更新日期：2014-05-01 00:00:00
abstract：INTRODUCTION:Cytomegalovirus (CMV)-associated thrombosis has been reported sporadically in the medical literature until now. However, thrombosis incidence and its risk factors have never been studied in a cohort of patients with acute CMV infection. MATERIALS AND METHODS:A retrospective case-control study. Medical cha...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2010.09.006
更新日期：2010-12-01 00:00:00
abstract：INTRODUCTION:Hemodialysis grafts often fail because of stenosis at the venous anastomosis resulting in thrombosis. Percutaneous intervention involves thrombolysis with plasminogen activators, mechanical removal of thrombus, and angioplasty of the stenotic lesions. OBJECTIVES:This article describes a phase I trial usin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2008.06.020
更新日期：2008-01-01 00:00:00
abstract：IMPORTANCE:Unprovoked venous thromboembolism (VTE) can be the first manifestation of cancer. It is unclear if extensive screening for occult cancer including a comprehensive computed tomography (CT) scan of the abdomen/pelvis is cost-effective in this patient population. OBJECTIVE:To assess the health care related cos...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.01.007
更新日期：2017-03-01 00:00:00
