Abstract：
INTRODUCTION:A fraction of fibrinogen molecules contain an alternatively spliced variant chain called gamma'. Plasma levels of this variant have been associated with both myocardial infarction and venous thrombosis. Because clot structure has been associated with cardiovascular risk, we examined the effect of gamma' chain on clot structure. MATERIALS AND METHODS:We expressed three fibrinogen variants in Chinese hamster ovary (CHO) cells: gamma/gamma homodimer, gamma/gamma' heterodimer, and gamma'/gamma' homodimer. We observed thrombin-catalyzed fibrinopeptide release by HPLC, fibrin polymerization by turbidity, and clot structure by scanning electron microscopy. We characterized post-translational modifications by mass spectrometry. RESULTS:Fibrinopeptide A was released at the same rate for all three fibrinogens, while fibrinopeptide B was released faster from the gamma'/gamma' homodimer. The rise in turbidity was slower and final absorbance was lower during polymerization of gamma'-containing fibrinogens than for gamma/gamma fibrinogen. Micrographs showed that gamma'/gamma' fibrin clots are composed of very thin fibers, while the diameter of gamma/gamma' fibers is similar to gamma/gamma fibers. Further, the fiber networks formed from gamma'-containing samples were non-uniform. Mass spectrometry showed heterogeneous addition of N-glycans and tyrosine sulfation in the gamma' chain. CONCLUSIONS:The presence of gamma' chains slows lateral aggregation and alters fibrin structure. We suggest these changes are likely due to charge-charge repulsion, such that polymerization of the gamma'/gamma' homodimer is more impaired than the heterodimer since these repulsions are partially offset by incorporation of gamma chains in the gamma/gamma' heterodimer.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Gersh KC,Nagaswami C,Weisel JW,Lord STdoi
10.1016/j.thromres.2008.11.016subject
Has Abstractpub_date
2009-07-01 00:00:00pages
356-63issue
3eissn
0049-3848issn
1879-2472pii
S0049-3848(08)00544-6journal_volume
124pub_type
杂志文章abstract：:Full-length Tissue Factor (flTF) - the obligatory co-factor for the serine protease (factor) VII/VIIa - serves as the initiator of blood coagulation. The flTF/VIIa complex triggers a sequence of proteolytic events that lead to the formation of a hemostatic plug. Aside from hemostatic maintenance, flTF can contribute t...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2012.02.027
更新日期：2012-05-01 00:00:00
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:Growth differentiation factor-15 (GDF-15) has been identified as a predictor in cardiovascular diseases and acute pulmonary embolism. However, the association of GDF-15 and deep venous thrombosis (DVT) remains unclear. This study aimed to investigate levels of GDF-15 in patients with DVT, and determine its...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.01.022
更新日期：2020-03-01 00:00:00
abstract：INTRODUCTION:Patients with type 1 diabetes have high risk of developing microvascular complications, and microangiopathy contributes to premature cardiovascular disease in this population. The role that microvesicles (MVs) may play in the development of microangiopathy in type 1 diabetes remains unclear. MATERIALS AND...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.08.012
更新日期：2020-12-01 00:00:00
abstract：:This work demonstrates that after bolus intravenous injection standard heparin (SH) disappearance results from the combination of a saturable and a non saturable mechanism. Pharmacokinetics and pharmacodynamics of SH were studied by measuring the disappearance of increasing doses (5 - 500 anti-factor Xa U/kg) of 125I-...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90075-2
更新日期：1987-06-15 00:00:00
abstract：:Plasma from patients with thrombotic thrombocytopenic purpura (TTP) caused the aggregation of washed human platelets, which was inhibited by preincubation with normal plasma. Using salt fractionation, ion exchange chromatography, and preparative agarose gel electrophoresis, we purified a protein from normal plasma whi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90155-5
更新日期：1984-01-01 00:00:00
abstract：:Polymorphonuclear leukocytes (PMNL) are components of the blood which as such interact extensively with other blood cells, with endothelial cells or with plasma. Here, we consider the interaction between PMNL and platelets which is efficient during adhesion of platelets to PMNL and which can be studied in vitro using ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(10)80005-2
更新日期：1994-01-01 00:00:00
abstract：:Studies of the factors affecting the first recurrence of ischemic stroke have reported inconsistent findings. Types of initial stroke and the racial differences in study samples are among the explanations that may account for this inconsistency. The aims of this study were to estimate the cumulative recurrence rates o...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00146-2
更新日期：2000-02-01 00:00:00
abstract：INTRODUCTION:A higher level of health insurance coverage may be related to better quality of care and outcomes. Whether insurance status is associated with anticoagulation quality and clinical outcomes in patients with venous thromboembolism (VTE) is unknown. METHODS:We studied 819 elderly patients treated with vitami...
journal_title：Thrombosis research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.thromres.2018.11.011
更新日期：2019-01-01 00:00:00
abstract：OBJECTIVES:Dabigatran etexilate is widely used for stroke prevention in the patients with atrial fibrillation. The anticoagulation activity of dabigatran is not necessary monitored in routine clinical practice. We aimed to study the effect of dabigatran on thrombin generation (TG) and coagulation assays in rabbit and h...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.03.012
更新日期：2018-05-01 00:00:00
abstract：:The fibrin sleeve of venous catheters (VC) and parietal thrombi represent frequent and dangerous side-effects of central venous catheterization (CVC), due to the risk of embolism. Reduced levels of coagulation clotting factors inhibitors (such as Antithrombin III) are known to be associated with increased thrombogenic...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/0049-3848(95)00041-0
更新日期：1995-04-15 00:00:00
abstract：:In order to choose the proper method for evaluating the antithrombin activity in samples of chitosan polysulphate (CP) with different polymerization degrees and sulphation degrees, we estimated the ability of direct anticoagulants to depress the coagulability of recalcified sheep blood using the third international he...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00266-3
更新日期：2001-06-01 00:00:00
abstract：:Tissue factor (TF) is an integral membrane glycoprotein that serves as a cofactor for blood coagulation factor VIIa. The induction of TF on the surface of endothelial cells is initiated by various kinds of stimuli including lipopolysaccharide (LPS), interleukin-1 beta (IL-1 beta), and tumor necrosis factor alpha (TNF ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90002-7
更新日期：1994-04-15 00:00:00
abstract：BACKGROUND:Predictors of venous thromboembolism (VTE) after trauma are uncertain. OBJECTIVE:To identify independent predictors of VTE after acute trauma. METHODS:Using Rochester Epidemiology Project (REP) resources, we identified all Olmsted County, MN residents with objectively-diagnosed incident VTE within 92days a...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2016.03.026
更新日期：2016-08-01 00:00:00
abstract：:Upon incubation for 24 hours with [3H]arachidonic acid (AA, 1 mu Ci/ml), cultured endothelial cells from human umbilical vein incorporated one half of the added radioactivity, mostly into phospholipids (83% of the total cell radioactivity). Distribution of the label between the various phospholipid classes was found t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90068-9
更新日期：1984-04-15 00:00:00
abstract：BACKGROUND:Troponin I (cTnI), myoglobin, heart-type fatty acid binding protein (H-FABP), and natriuretic peptides (BNP, NTproBNP) were all reported to be elevated in patients with pulmonary embolism (PE). METHODS:To assess the correlation between the aforementioned markers and helical computed tomography (hCT) right v...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.07.003
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Anticoagulated patients are often seen unnecessarily in the emergency department (ED) for epistaxis, leading to increased healthcare costs. Patients are often unaware of preventative and management techniques for handling epistaxis in the home. METHODS:In 2016, the Michigan Anticoagulation Quality Improveme...
journal_title：Thrombosis research
pub_type： 信件
doi：10.1016/j.thromres.2021.01.007
更新日期：2021-01-16 00:00:00
abstract：BACKGROUND AND PURPOSE:Miniplasmin was a des-kringle variant of plasminogen with potential pharmacological application. We investigated the thrombolytic effect of miniplasmin in a canine model of femoral artery thrombosis. METHODS:In anesthetized dogs, a stable occlusive thrombus was formed by mechanical and electroly...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2008.01.007
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Platelet microparticles (PMPs) possess proatherogenic and procoagulant properties which may play a role in atherogenesis and subsequent thromboembolic complications. The present study was conducted to investigate the possible relationship between carotid atherosclerosis and plasma concentrations of PMPs, and...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2008.10.016
更新日期：2009-04-01 00:00:00
abstract：:Three collagenases were purified from the culture medium of human skin fibroblasts using ammonium sulfate fractionation, ion-exchange chromatography and gel filtration. The cationic collagenase had a molecular weight of 42,000; two anionic collagenases had molecular weights of 63,000 and 115,000. Preincubation of the ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90211-1
更新日期：1984-07-15 00:00:00
abstract：:Mild hyperhomocysteinemia is recognized as a risk factor for venous thromboembolism (VTE), though its role in the thrombogenic processes is not understood. Its possible association with impaired fibrinolysis was investigated in 157 patients (61 women, 96 men) below the age of 60 years (43+/-11, mean+/-SD) with a histo...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00324-8
更新日期：2000-11-15 00:00:00
abstract：:Venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), is the third most common cardiovascular disease after coronary artery disease and cerebrovascular disease and is responsible for significant morbidity and mortality in the general population. Full dose anticoagulation is th...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2011.11.003
更新日期：2012-04-01 00:00:00
abstract：:Using a stable cross-linked SAK/plg complex, the effects of alpha 2-plasmin inhibitor on plasminogen activation by SAK were investigated. alpha 2-Plasmin inhibitor inhibited dose-dependently plasminogen activation by the SAK/plg complex. When FCB-2 or EACA was added to the reaction mixture of SAK/plg complex and alpha...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(94)90191-0
更新日期：1994-10-15 00:00:00
abstract：INTRODUCTION:The activated partial thromboplastin time (APTT) is commonly used to monitor unfractionated heparin (UFH) but may not accurately measure the amount of heparin present. The anti-Xa assay is less susceptible to confounding factors and may be a better assay for this purpose. MATERIALS AND METHODS:The validit...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.07.006
更新日期：2017-09-01 00:00:00
abstract：:A simple and reproducible method to induce an occlusive thrombus in rabbit carotid artery is reported. Rabbits were anesthetized and prepared to record arterial pressure, heart rate, and carotid blood flow. A critical stenosis of a damaged carotid artery was obtained using an external plastic cylinder. Complete occlus...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90147-o
更新日期：1991-05-15 00:00:00
abstract：:The present investigation has used an aggregation-disaggregation-reaggregation model to determine if exposure to potent aggregating agents causing a refractory state in deaggregated platelets results in down-regulation and clearance of GPIb/IX, the receptor for von willebrand factor. Thrombin, the thrombin receptor ac...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(96)00185-5
更新日期：1996-11-15 00:00:00
abstract：:Stimulation of rat platelets with U46619 induced Ca2+ mobilization and platelet shape change, but aggregation and secretion were induced when platelets were stimulated with U46619 plus phorbol 12-myristate 13-acetate (PMA). However, stimulation of rabbit platelets with U46619 induced all the three platelet responses. ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90171-0
更新日期：1989-10-15 00:00:00
abstract：:Thromboangiitis obliterans (TAO), or Buerger's disease, is a segmental occlusive inflammatory disorder of the arteries and veins, and etiopathogenesis is still obscure. In the present study we investigated the prevalence of prothrombin 20210 G-->A, factor V 1691 G-->A (Factor V Leiden), and factor V 4070 A-->G (His 12...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00310-8
更新日期：2000-11-01 00:00:00
abstract：INTRODUCTION:Aspirin is a common antiplatelet drug used in the prevention of ischemic stroke due to its inhibitory effect on platelet cyclooxygenase-1 (Cox-1). Patients can be categorized as either aspirin 'responders' or 'non-responders' depending on whether they are protected against a secondary stroke event or not. ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2003.12.005
更新日期：2003-01-01 00:00:00
abstract：INTRODUCTION:Cancer is a major risk factor for developing venous thromboembolism (VTE). Plasma hypercoagulability is an established risk factor for cancer-related VTE. In addition, thrombocytosis and hyperreactive platelets have been implicated in VTE and cancer progression. Cirrhosis is associated with changes in plat...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.11.016
更新日期：2015-02-01 00:00:00
