Abstract：
:The release of arachidonic acid, and its subsequent conversion to thromboxane A2, is an important component of platelet activation. The precise mechanism of arachidonic acid release is unknown although cytosolic phospholipase A2 (cPLA2) has been implicated. In the present study the effects of three agonists, the serine protease thrombin, the protein kinase C stimulant PMA and the calcium ionophore A23187 have been examined on the translocation and phosphorylation of cPLA2 and these have been correlated with arachidonic acid release. Thrombin, but neither PMA nor A23187, caused the release of [14C]-arachidonic acid from unstirred, prelabeled platelets. Immunoblot analysis was carried out on cytosolic and membrane fractions from control and activated platelets using an anti-cPLA2 antibody. In platelets stimulated by thrombin or A23187, but not by PMA, there was a translocation of cPLA2 to the membrane fraction. Immunoprecipitation of cPLA2 from [32P]-ortho-phosphate-prelabeled platelets, indicated enhanced phosphorylation on serine residues of cPLA2 from thrombin- or PMA-stimulated platelets. These results are consistent with two synergistic pathways mediating cPLA2 activity. Increased cytosolic calcium causes the translocation of cPLA2 to the membrane, and protein kinase either directly, or indirectly, phosphorylates the enzyme. Activation of both pathways, as occurs in response to thrombin, is required for arachidonic acid liberation.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
McNicol A,Shibou TSdoi
10.1016/s0049-3848(98)00097-8subject
Has Abstractpub_date
1998-10-01 00:00:00pages
19-26issue
1eissn
0049-3848issn
1879-2472pii
S0049-3848(98)00097-8journal_volume
92pub_type
杂志文章abstract：:The effect of tissue factor pathway inhibitor (TFPI) on thrombin and factor Xa generation was studied in an in vitro system using a prothrombin complex concentrate. It was found that TFPI, via the direct inhibition of factor Xa and the tissue factor/factor VIIa complex, inhibited both the further generation of factor ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90173-2
更新日期：1994-09-15 00:00:00
abstract：:HC II functional assays are generally preferred with respect to immunochemical assays. Nevertheless functional assays can be biased by the antithrombin III (AT III)-heparin complex activity; in fact trace amounts of heparin generally contaminate dermatan sulfate (DS) commercial preparations used as HC II reaction acti...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90248-9
更新日期：1992-01-15 00:00:00
abstract：:Bovine hide collagen dispersions were swollen in the pH range 1.6-7.0, treated with glutaraldehyde, and dialyzed to neutral pH. The intensity with which these collagens reacted with human platelets in plasma was studied by aggregometry and scanning electron microscopy. Collagen swollen at a pH below 4.25 +/- 0.30 and ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90463-5
更新日期：1989-07-01 00:00:00
abstract：:Fluorescein Dextran (FD) was shown to be transported at increased rates through partially denuded endothelial monolayer. Platelet binding to the partially denuded monolayer lowered transport rates to those comparable with intact endothelium. Inhibition of transport by platelet binding was not affected by the addition ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90191-c
更新日期：1992-05-01 00:00:00
abstract：:The influence of acute hypoxemia on blood fibrinolytic activity was investigated in 12 healthy males. Physiologically significant hypoxemia was produced by inspiration of 13% oxygen for 30 min. Six healthy males were exposed to hypoxemia at rest and 6 males to hypoxemia during exhaustive physical exercise on an ergocy...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90222-2
更新日期：1987-02-15 00:00:00
abstract：INTRODUCTION:Data regarding the clinical relevance of pulmonary infarction (PI) in patients with pulmonary embolism (PE) are lacking. The aim of this study was to investigate the clinical features of PE patients with PI and the prognostic role of PI for PE patients. MATERIALS AND METHODS:Based on computed tomography s...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2012.03.012
更新日期：2012-09-01 00:00:00
abstract：:An abnormal prothrombin has been detected in a 26-year-old female, who had no history of excessive bleeding. Prothrombin activity was approximately 10% when measured using either the classical one-stage assay or the assay with Echis carinatus venom, whereas prothrombin antigen level was normal. In keeping with current...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90373-5
更新日期：1991-06-15 00:00:00
abstract：UNLABELLED:Suboptimal gastrointestinal absorption is a problem for many direct thrombin inhibitors. The studies presented herein describe the new oral direct thrombin inhibitor H 376/95, a prodrug with two protecting residues added to the direct thrombin inhibitor melagatran. Absorption properties in vitro: H 376/95 is...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00399-6
更新日期：2001-02-01 00:00:00
abstract：:Resveratrol (3, 4', 5-trihydroxystilbene), a natural polyphenol, is found in some plants that are used in human nutrition. Grapes are a major source for resveratrol, and a significant amount can also be found in red wine. Several experimental studies have demonstrated biological properties of resveratrol, especially i...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(02)00273-6
更新日期：2002-08-15 00:00:00
abstract：:Patients with the nephrotic syndrome are at increased risk of developing venous and arterial thromboembolism, the most common of which is renal vein thrombosis. There are several unanswered or controversial issues relating to the nephrotic syndrome and thromboembolism, which include the mechanism of thromboembolism, a...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2005.03.030
更新日期：2006-01-01 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：BACKGROUND:The fibrinogen γ' variant (γ') has both antithrombotic and prothrombotic properties when compared to normal fibrinogen. It may therefore be of relevance in intracerebral hemorrhage and intraventricular extension of the bleeding. OBJECTIVE:To study the role of γ' in intracerebral hemorrhage, and in intravent...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.08.017
更新日期：2012-06-01 00:00:00
abstract：INTRODUCTION:Recombinant members of the vitamin K-dependent protein family (factors IX and VII and protein C) have become important pharmaceuticals in treatment of bleeding disorders and sepsis. However, because the in vivo gamma-carboxylation system in stable cell lines used for transfection has a limited capacity of ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.11.002
更新日期：2008-01-01 00:00:00
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 ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90376-1
更新日期：1984-10-01 00:00:00
abstract：:We constructed a new factor IX expression vector containing a full length factor IX cDNA. The Moloney Murine Leukemia Virus (MoMLV)-based retroviral vector pLRNL was cloned with the entire coding region of human factor IX down stream of the promoter of Rous sarcoma virus, giving rise to the construct pL9RNL. The GP+E ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90038-p
更新日期：1993-02-15 00:00:00
abstract：:Experimental disseminated intravascular coagulation (DIC) can be induced by 4-h sustained infusion of endotoxin in a dose of 100 mg/kg in rats. The experimental model of DIC in rats was used to study the preventive effect of dipyridamole against DIC. Before the infusion of endotoxin, 0.5, 5.0 or 50.0 mg/kg of dipyrida...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90216-5
更新日期：1983-03-15 00:00:00
abstract：BACKGROUND:Treatment of deep-vein thrombosis (DVT) with a once-daily regimen of enoxaparin, rather than a continuous infusion of unfractionated heparin (UFH) is more convenient and allows for home care in some patients. This study was designed to compare the efficacy and safety of these two regimens for the treatment o...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/j.thromres.2004.05.009
更新日期：2004-01-01 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：BACKGROUND:There is a perception in the orthopaedic and thromboembolism community that the incidence of deep vein thrombosis (DVT) has decreased in patients undergoing total knee arthroplasty (TKA) or total hip arthroplasty (THA). OBJECTIVES:To assess the incidence of DVT with warfarin thromboprophylaxis over time in ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2008.05.005
更新日期：2008-01-01 00:00:00
abstract：:Several inflammatory particles (zymosan, two forms of asbestos, carrageenan) and the soluble inflammatory agent dextran sulphate induced a dose- and time-dependent increase in thromboplastin activity of cultured human monocytes. Two weakly inflammatory particles (latex and anatase) had little effect. The increase larg...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90227-x
更新日期：1983-05-15 00:00:00
abstract：INTRODUCTION:Long-term dual antiplatelet therapy (DAPT) has substantially reduced the risk of post-percutaneous coronary intervention (PCI) myocardial infarction and stent thrombosis at the expense of major bleeding. We hypothesized that a short-term DAPT followed by extended P2Y12 inhibitor monotherapy might be approp...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.11.038
更新日期：2020-12-07 00:00:00
abstract：BACKGROUND:Whether antibodies directed to β2-Glycoprotein I (aβ2GPI) are responsible for LA activity is not well defined. However, in the absence of such antibodies the molecule responsible for LA phenomenon is unknown. OBJECTIVE:The aim of this study was the biochemical identification of the target antigen epitope of...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.11.003
更新日期：2018-12-01 00:00:00
abstract：:We previously reported that the expression of thrombomodulin on the MEG-01, a cell line from human megakaryoblastic leukemia, was increased by agents that increase intracellular cAMP. In this paper we examine the effect of these agents on cultured human umbilical vein endothelial cells (HUVEC) and mouse hemangioma cel...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90107-8
更新日期：1991-02-01 00:00:00
abstract：:Calcium accumulating vesicles were prepared from washed human platelets. Ca2+ uptake could be stimulated with calmodulin. The stimulation of Ca2+ uptake was not abolished by the adenylate cyclase inhibitor 2',5'-dideoxyadenosine, thus excluding enhanced cAMP formation as a possible cause for the calmodulin effect. Our...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)91697-x
更新日期：1986-02-15 00:00:00
abstract：:Practice variation, the differences in clinical management between physicians, is one reason why patient outcomes may differ. Identifying factors that contribute to practice variation in areas of clinical uncertainty or equipoise may have implications for understanding and improving patient care. To discern what facto...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.09.026
更新日期：2017-11-01 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：OBJECTIVE:In sepsis, activation of coagulation and inhibition of fibrinolysis lead to microvascular thrombosis. Thus, clot stability might be a critical issue in the development of multiple organ dysfunction syndrome. Activated FXIII (FXIIIa) forms stable fibrin clots by covalently cross-linking fibrin monomers. Theref...
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.2006.02.003
更新日期：2007-01-01 00:00:00
abstract：INTRODUCTION:To validate the diagnostic criteria for disseminated intravascular coagulation (DIC) established by the Japanese Association for Acute Medicine (JAAM) at an early stage of trauma and to evaluate the hypothesis that the JAAM criteria can diagnose DIC with a higher sensitivity than the International Society ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2009.06.036
更新日期：2009-12-01 00:00:00
abstract：:Liquid permeation studies of fibrin gels, which were formed in the presence of thrombin (Fibrin II) and in the presence of Batroxobin (Fibrin I), showed that those gels have distinctly different flow properties. For both gels the permeability coefficient (Ks) and average pore size varied depending on the conditions fo...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90214-6
更新日期：1982-01-01 00:00:00
abstract：INTRODUCTION:In the pathogenesis of sepsis-induced acute lung injury (ALI), the crosstalk between inflammation and coagulation plays a pivotal role. The aim of this study was to investigate the role of Rho kinase (ROCK) inhibitor in alleviating pulmonary inflammation and coagulation in lipopolysaccharide (LPS)-induced ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.12.020
更新日期：2017-02-01 00:00:00
