Abstract：
INTRODUCTION:Retinal vein occlusion is a major cause of ocular morbidity. The precise mechanism leading to thrombosis in retinal vein occlusion has not yet been clearly elucidated. Several risk factors have been identified, including hypertension diabetes, history of cardiovascular disease, hypercholesterolemia, hyperhomocysteinaemia, increased ocular pressure and glaucoma. Although thrombus formation in the vein plays a significant role in the onset of retinal vein occlusion, the relationship between platelet aggregation and retinal vein occlusion remains to be clarified. MATERIALS AND METHODS:In the present study the platelet response to thrombin in a selected group of retinal vein occlusion patients was investigated. Retinal vein occlusion patients were compared to a group of healthy subjects matched for age, sex, clinical and metabolic characteristics. In resting and activated platelets of both groups of subjects total protein tyrosine phosphorylation, p38MAPK and cytosolic phospholipase A(2) phosphorylation, arachidonic acid release, intracellular calcium levels, thromboxane B(2) and superoxide anion formation were measured. RESULTS:Results show that platelets of patients were more responsive to thrombin than healthy subjects. In resting or in thrombin stimulated platelets of patients total protein tyrosine phosphorylation, p38MAPK and cytosolic phospholipase A(2) phosphorylation were increased. Also arachidonic acid release, thromboxane B(2) and superoxide anion formation were higher in patients than in healthy subjects. In addition intracellular calcium rise induced by thrombin was increased in patients. CONCLUSIONS:Altogether data suggest that platelet hyperaggregability inducing thrombus formation might be an important factor in the onset and/or development of retinal vein occlusion.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Leoncini G,Signorello MG,Segantin A,Giacobbe E,Armani U,Piana A,Camicione Pdoi
10.1016/j.thromres.2009.07.010subject
Has Abstractpub_date
2009-12-01 00:00:00pages
e48-55issue
6eissn
0049-3848issn
1879-2472pii
S0049-3848(09)00330-2journal_volume
124pub_type
杂志文章abstract：:Aggregation responses of platelet-rich plasma (PRP) from monocrotaline pyrrole (MCTP)-treated rats were examined to help elucidate the role of platelets in MCTP-induced pulmonary hypertension. PRP from rats treated one or four days earlier with MCTP (5 mg/kg, i.v.) or vehicle exhibited the same slope and maximum aggre...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90168-8
更新日期：1983-11-01 00:00:00
abstract：BACKGROUND:Many heparin-induced thrombocytopenia (HIT) antibodies cause platelet activation in the serotonin release assay (SRA) in the absence of heparin. This in vitro observation may help unravel the mechanism of delayed-onset HIT, where seropositive patients develop thrombocytopenia and associated thrombosis after ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2009.10.021
更新日期：2010-04-01 00:00:00
abstract：:Anticoagulant therapy for the typical venous thromboembolism patient is straightforward with predictably favorable outcomes. However, for certain patients with venous thromboembolism, there remains uncertainty and controversy about optimal treatment. These controversial areas include venous thromboembolism patients wi...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2006.05.015
更新日期：2007-01-01 00:00:00
abstract：:Owing to the beneficial health effects on human cardiovascular system, soybeans and soy-related products have been a focus of intensive research. Soy isoflavones are known to be primarily responsible for the soy-related biological effects including anti-platelet activity but its in vivo relevancy has not been fully ve...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.01.002
更新日期：2013-03-01 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：:Previous studies have indicated that the skin bleeding time test does not accurately reflect visceral bleeding time (BT). The present study examines the predictive value of the skin bleeding time for brain bleeding tendency. Sixteen Sprague-Dawley rats were divided into equal groups. The first group (controls) underwe...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90282-8
更新日期：1994-12-15 00:00:00
abstract：INTRODUCTION:Antiphospholipid syndrome (APS) is a pro-thrombotic autoimmune disease that affects different vascular beds, with potential risk for recurrence. Systemic lupus erythematosus (SLE), specific autoantibodies profile and atherogenic disorders have been described as risk factors for the occurrence of first thro...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.10.029
更新日期：2015-12-01 00:00:00
abstract：:The thrombolytic efficacy of recombinant tissue-type plasminogen activator (tPA) in the presence and absence of a thromboxane synthase inhibitor was studied in a model of femoral artery thrombosis in the anesthetized rabbit. The thrombus was formed by injection of thrombin and whole blood into an isolated segment of t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90022-9
更新日期：1988-12-01 00:00:00
abstract：UNLABELLED:We undertook a survey of French university hospital hematological laboratories to ascertain the clinical characteristics of patients with suspected HIT, the laboratory tests performed, and the therapeutic strategy adopted in current practice. METHODS:A standardized medical records database for patients with...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2010.02.003
更新日期：2010-06-01 00:00:00
abstract：:Beta-thromboglobulin (beta-TG) is a platelet-specific protein present in the alpha-granules and secreted into the surrounding medium on cell activation. The sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) of platelet releasate after inhibition of metalloproteinases with ethyleneglycol-bis-(beta-a...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(02)00135-4
更新日期：2002-05-15 00:00:00
abstract：BACKGROUND:The purpose of this study was to determine whether the administration of multiple boluses of oral and intravenous tranexamic acid (TXA) postoperatively was equivalent in reducing blood loss in primary THA. METHODS:A total of 108 patients were randomized into two groups: oral TXA group (54 patients receiving...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2018.02.007
更新日期：2018-04-01 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：:Activated platelets secrete different chemokines, among others CCL5, thereby triggering inflammatory cell recruitment into the vessel wall. Here, we investigated how CCL5 deficiency influences vascular remodeling processes. Experiments were performed in apolipoprotein E and CCL5 double deficient (ApoE(-/-)×CCL5(-/-)) ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.06.013
更新日期：2016-08-01 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：:Activation of human platelets by PAF was augmented by C-reactive protein, an acute phase plasma protein. The concentration of PAF required for irreversible activation (secondary aggregation of platelet and release of serotonin) was decreased to 1/10 in the presence of C-reactive protein (CRP). The presence of CRP stim...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90361-0
更新日期：1986-03-01 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
abstract：INTRODUCTION:Available data on fibrin clot properties and fibrinolysis in hyperthyroidism and hypothyroidism are inconsistent. Our objective was to assess the impact of effective treatment of hyper- and hypothyroidism on fibrin clot characteristics. MATERIAL AND METHODS:In a case-control study, ex vivo plasma fibrin c...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.05.041
更新日期：2014-08-01 00:00:00
abstract：:Therapeutic developments have seen significant improvement in mortality over the past thirty years for breast, colorectal and prostate cancer. Lung cancer is the commonest cancer in the world, but has seen little improvement in survival figures. The role of low-molecular-weight heparin (LMWH) in improving cancer survi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/S0049-3848(12)70029-4
更新日期：2012-04-01 00:00:00
abstract：:β(2)glycoprotein I (β(2)GPI) is the major antigen in the antiphospholipid syndrome. It has been shown that β(2)GPI can adapt to different conformations, a circular, a S-shaped and a J-shaped conformation. In literature anticoagulant properties of β(2)GPI have been indicated, though there is no consensus on how β(2)GPI...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2012.08.269
更新日期：2012-10-01 00:00:00
abstract：:Antiphospholipid antibodies (APAs) are considered risk factors in patients with thromboembolic diseases. Although the incidence of such acquired coagulation disturbances in adults are well described, only few data exist for children. Therefore, in a first step to collect new data we analyzed the presence of different ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00241-8
更新日期：2000-05-15 00:00:00
abstract：:The role of Protein C in combined factor V/VIII deficiency was examined by reducing the Protein C concentration using warfarin therapy in a patient with the combined deficiency. The factor VIII deficiency was like Hemophilia-A, with deficiency of VIII:C and VIII:C(Ag), but normal VIIIR:Ag and VIIIR:cof. The factor V d...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90188-9
更新日期：1984-12-15 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：:To demonstrate that human alpha-thrombin is effectively inactivated by human antithrombin III (AT) during the production of a fibrin clot we measured the amount of alpha-thrombin activity which can be recovered from a clot generated from purified human proteins. We discovered that 0.05-0.07% of the original alpha-thro...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90234-f
更新日期：1993-03-01 00:00:00
abstract：OBJECTIVE:To compare rates of VTE occurrence in obese versus non-obese hospitalized patients who received UFH 5000 units subcutaneously q8 h. MATERIALS AND METHODS:This was a retrospective cohort study conducted in an academic medical center in the United States. Consecutive adult patients who were hospitalized during...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.07.027
更新日期：2018-09-01 00:00:00
abstract：:The effects of locally deposited fibrin and of tranexamic acid-induced antifibrinolysis on forming granulation tissue were studied in the light of a recently developed method for treatment of postoperative fistulas by occlusion with a fibrin clot. Perforated teflon cylinders, either empty or fibrin-filled, were implan...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90152-x
更新日期：1984-01-01 00:00:00
abstract：:Seven compounds having varying affinities for peripheral benzodiazepine (p sites) were evaluated in vitro as inhibitors of arachidonic acid-induced rabbit platelet aggregation and thromboxane B2 (TXB2) synthesis. With the exception of flumazenil, all compounds inhibited both parameters with IC50 values ranging from 0....
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(95)00062-v
更新日期：1995-05-15 00:00:00
abstract：INTRODUCTION:Different Klebsiella pneumoniae strains carry different virulence factors and antibiotic resistance and may cause thrombocytopenia. This study aimed to investigate the effects of different infections caused by K. pneumoniae on platelets. METHODS:Two hypermucoviscous K. pneumoniae strains and two classic s...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.09.053
更新日期：2018-11-01 00:00:00
abstract：:We characterized a platelet specific alloantigen (Yukb). In immunoblotting, anti-Yukb antibody was found to react with both 110 kDa and 96 kDa bands under nonreducing condition. Immunoblotting followed by separation by two-dimensional electrophoresis (isoelectric focusing/SDS-PAGE) showed that the 96 kDa band had a pI...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90136-x
更新日期：1992-07-15 00:00:00
abstract：:The candidate-gene approach can be used to locate and identify genetic variations that are associated with a particular phenotype. This gene-centric approach assumes that there exists important genetic variation within genes that can influence health. Identifying known genes which are candidates for the phenotype of i...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(09)70139-2
更新日期：2009-01-01 00:00:00
abstract：:The effect of a low molecular weight heparin (Fragmin) (20-80 U/kg) was studied in 10 healthy male volunteers after intravenous administration. Clotting abnormalities are extensive shortly after injection, lasting for 1-2 hours depending on heparin dosage. Dilute thrombin time, showing a close correlation to anti-F-Xa...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90257-5
更新日期：1988-03-15 00:00:00
