Abstract:
:The fibrinogen molecule consists of two sets of Aalpha, Bbeta, and gamma chains assembled into a bilateral disulfide linked (Aalpha, Bbeta, gamma)2 structure. Cleavage of the two A-fibrinopeptides (FPA, Aalpha1-16) from normal Aalpha chains with arginine at position 16 (RFPA) by thrombin or the venom enzyme atroxin transforms fibrinogen into self-aggregating fibrin monomers (alpha, Bbeta, gamma)(2). Mutant Aalpha16R-->H fibrinopeptide (HFPA) cannot be cleaved from fibrinogen by atroxin. Many studies on heterozygous dysfibrinogenemias with this mutation suggested that incorporation of the mutant chains into the molecules was ordered in a manner yielding only (1) homodimeric normal (RFPARFPA) atroxin-coagulable molecules and (2) homodimeric abnormal (H(FPA)HFPA) atroxin-incoagulable molecules in equal quantities. Although heterodimeric molecules (RFPAHFPA) could not be found in studies on the intact protein, Meh et al. demonstrated their existence by showing that CNBr digests of fibrinogens from atroxin-treated Aalpha16R-->H heterozygotic dysfibrinogenemias consistently yielded N-terminal fragments (NDSKs) with partially resolved electrophoretic bands predominantly in between the NDSKs of fibrinogen and alpha-fibrin. An opportunity to confirm and better quantify the heterodimers arose with the recent development of a method (GPRphoresis) for identifying molecules lacking only one FPA, which is applied here in study of a newly presenting case of an Aalpha16R-->H dysfibrinogenemia, "fibrinogen Amarillo." GPRphoresis uses electrophoretic shifts, staged with GPRP-NH(2) to separate the self-aggregating fibrin monomers lacking both FPAs from weakly aggregating "semifibrin" molecules lacking one FPA An antifibrin alpha17-23 antibody is used to measure and differentiate the semifibrin from fibrinogen with FPA fully intact. Applying GPRphoresis to atroxin digests of fibrinogen Amarillo clearly demonstrated RFPARFPA, RFPAHFPA, and HFPAHFPA molecules in nearly perfect Mendelian 1:2:1 proportions. In turn, the high levels of the semifibrin in the terminal atroxin digests provide genetic phenotypic evidence supporting fidelity of the GPRphoresis method.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Shainoff JR,Ratnoff OD,Smejkal GB,DiBello PM,Welches WR,Lill H,Mitkevich OV,Periman Pdoi
10.1016/s0049-3848(00)00383-2subject
Has Abstractpub_date
2001-01-15 00:00:00pages
91-9issue
2eissn
0049-3848issn
1879-2472pii
S0049-3848(00)00383-2journal_volume
101pub_type
杂志文章abstract:OBJECTIVE:Exposure of the subendothelium to flowing blood following rupture of atherosclerotic lesions or during balloon angioplasty initiates platelet adhesion to the vascular wall. Because activated platelets release proinflammatory mediators (e.g., interleukin (IL)-1beta) and secrete growth factors, platelet adhesio...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(03)00342-6
更新日期:2003-06-01 00:00:00
abstract::Despite clear potential benefits of outpatient care, most patients suffering from pulmonary embolism (PE) are currently hospitalized due to the fear of possible adverse events. Nevertheless, some teams have increased or envisage to increase outpatient treatment or early discharge. We performed a narrative systematic r...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2017.05.001
更新日期:2017-07-01 00:00:00
abstract::We have developed a new bioassay for endothelium-derived relaxing factor (EDRF) or nitric oxide (NO) using human [3H]guanosine triphosphate (GTP)-labeled platelets. The labeled platelets were preincubated with isobutyl-methylxanthine and co-cultured with endothelial cells and the [3H]cyclic guanosine monophosphate (cG...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(95)00082-3
更新日期:1995-06-15 00:00:00
abstract:BACKGROUND:The AMPLIFY trial found significantly lower major bleeding (MB) and similar recurrent venous thromboembolism (VTE) risks associated with apixaban vs warfarin among patients with VTE. OBJECTIVES:To compare MB, clinically-relevant non-major (CRNM) bleeding, and recurrent VTE risks among clinically-relevant su...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2020.11.039
更新日期:2020-12-08 00:00:00
abstract::The susceptibility of von Willebrand factor /vWF/ to digestion by human neutrophil cathepsin G in highly purified FVIII/vWF concentrate /BHS/ and in cryoprecipitate has been studied. In contrast to human neutrophil elastase, cathepsin G inactivates and degrades vWF not only in BHS but also in cryoprecipitate. Fibrinog...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(91)90657-i
更新日期:1991-02-15 00:00:00
abstract:INTRODUCTION:Atherosclerosis, the underlying disorder of coronary artery disease (CAD), is an inflammatory process involving multiple molecular pathways. Chemokine-mediated mechanisms are potent regulators of atherosclerosis. Genetic variations that alter such signaling pathways could affect susceptibility to CAD. We i...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2005.12.016
更新日期:2007-01-01 00:00:00
abstract::The Calibrated Automated Thrombogram (CAT), a plate-based assay that measures thrombin generation and inhibition in plasma samples, is modified to measure the procoagulant activity of phospholipid associated with plasma microparticles (MP). The assay uses a tissue factor trigger without addition of 4 μM exogenous phos...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2010.10.018
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:Plasma viscosity (PV) constitutes an independent important predictor of initial and recurrent cardiac events and mortality. It has been suggested that there is a geographical variation in PV values related to coronary event rates. Little information exists regarding PV in Spain. Therefore, our objective wa...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2006.11.009
更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:Patients with nonvalvular atrial fibrillation are at increased risk for systemic embolism, predominantly disabling stroke. To study how stroke and mortality rates vary with different degrees of anticoagulation reflected by the international normalised ratio (INR) we critically assess information from diffe...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2004.11.025
更新日期:2006-01-01 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::Blood was obtained from four patients envenomated by the Australian common brown snake, Pseudonaja textilis textilis. This elapid snake has one of the most toxic venoms in the world, containing extremely potent neurotoxic and coagulant components. The latter is a potent complete prothrombinase, converting prothrombin ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90399-w
更新日期:1990-09-01 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::G619, a 4-OH-isophthalic acid derivative, was studied for its capacity to inhibit platelet aggregation. G619 dose-dependently inhibited U46619, collagen, ADP, PAF, thrombin and epinephrine-induced platelet aggregation in vitro. The IC50 values for inhibition of U46619-induced human and rabbit platelet aggregation were...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90283-g
更新日期:1992-05-15 00:00:00
abstract:UNLABELLED:Disturbances of coagulation and fibrinolysis have been reported in patients with chronic uremia. Studies of different coagulation and fibrinolysis parameters in regularly dialyzed patients have yielded conflicting results. Global fibrinolytic capacity (GFC) examines the function of the entire fibrinolytic sy...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2004.08.014
更新日期:2005-01-01 00:00:00
abstract:INTRODUCTION:Portal vein thrombosis (PVT) is a well-known complication in patients with liver cirrhosis (LC). The aim of this study is to investigate the outcomes of cirrhotic patients with PVT treated with low-molecular-weight heparin (LMWH). METHOD:Ninety-one LC patients with PVT were treated with dalteparin or enox...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2018.01.032
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Postthrombotic intraluminal tissue causing postthrombotic syndrome (PTS) has not been well described. This study defines its histological characteristics and assess whether tissue function evolves over time. METHODS:Specimens from 18 common femoral veins (CFV) from 16 patients obtained during CFV endovenect...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2015.02.026
更新日期:2015-05-01 00:00:00
abstract:INTRODUCTION:Conventional Vacutainer® Sodium Citrate blood collection tubes contain a relatively high concentration of contaminating magnesium ions, which may result in shortening of the prothrombin time (PT) and the International Normalized Ratio (INR). Recently the manufacturer of Vacutainer® Sodium Citrate tubes int...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.04.016
更新日期:2014-07-01 00:00:00
abstract:INTRODUCTION:Thrombosis is one of the most frequent adverse events after cardiac catheterization, which can be reduced by anticoagulation with unfractionated heparin (UFH) in both children and adults. Low molecular weight heparin (LMWH) might possibly offer advantages. Laboratory signs of thrombin generation during ped...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章
doi:10.1016/j.thromres.2003.09.020
更新日期:2003-01-01 00:00:00
abstract::Factor IX Nagoya 3 (IX Nagoya 3) is a natural mutant of factor IX recognized in a patient with moderately severe hemophilia B. The patient had 0.60 units/ml of factor IX antigen and 2-5% of clotting activity. IX Nagoya 3 was purified from the patient's plasma by immunoaffinity chromatography with an anti-factor IX mon...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90109-p
更新日期:1990-11-15 00:00:00
abstract::This prospective randomized study investigated the influence of normotensive and hypotensive general anesthesia on platelet aggregability, intraoperative blood loss and parameters of plasmatic coagulation during extensive orthognathic surgery. A total of 30 patients were randomly allocated for either normotensive anes...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0049-3848(01)00316-4
更新日期:2001-08-01 00:00:00
abstract::The presence of one acidifying Cl-/HCO3- exchange mechanism in human platelets has not been previously reported. This paper demonstrates that this mechanism does function and that it increases its activity after stimulation with thrombin. On resuspension of BCECF-loaded platelets in a chloride-free medium (gluconate r...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2004.11.012
更新日期:2005-01-01 00:00:00
abstract::We investigated the effects of Defibrotide (D), a natural polydeoxyribonucleotide, on acute myocardial ischemia (AMI) in anesthetized cats. A permanent ligature was placed around the left anterior descending coronary artery (LAD) 12-14 mm from its origin. Ventricular fibrillation and death were exceptional and when th...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(85)90008-8
更新日期:1985-04-01 00:00:00
abstract::A blinded randomized multicenter trial of two non-activated prothrombin complex concentrates was carried out to determine the clinical effectivity in the treatment of acute hemarthrosis in hemophiliac patients with inhibitors. The one product was prepared via DEAE Sephadex chromatography, while the second was fraction...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0049-3848(86)90115-5
更新日期:1986-06-15 00:00:00
abstract::The treatment of prostatic cancer with oestrogen has been reported to be associated with cardiovascular side effects. Twenty patients with recently diagnosed prostatic cancer were randomly allocated to oestrogen therapy or orchidectomy. As compared to healthy age matched controls the patients with prostatic cancer had...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0049-3848(86)90024-1
更新日期:1986-12-15 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::Generally, the rules of good practice in transfusion medicine apply also to the pediatric age group. However, the frequency of specific diseases that might necessitate the administration of fresh frozen plasma (FFP) differs from that in adults. Physiologic differences to the later age exist in the neonatal period and ...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/s0049-3848(02)00149-4
更新日期:2002-10-31 00:00:00
abstract:INTRODUCTION:Although the general improvement caused by recombinant human erythropoietin (rHuEPO) in the correction of uraemic anaemia cannot be questioned, some data suggest that the changes in the haemostasis, endothelial function and oxidative stress (SOX) are induced. The aim of the present study was to investigate...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章
doi:10.1016/j.thromres.2007.02.004
更新日期:2007-01-01 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::Thrombocytopenia is a common finding in cancer patients and can have different and/or multifactorial pathogenesis. While in solid tumors it occurs often as a consequence of chemotherapy treatment, it is frequently observed at diagnosis in patients with hematological malignancies being aggravated to a potentially life-...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2018.02.001
更新日期:2018-04-01 00:00:00
abstract::Experience with tranexamic acid, an indirect fibrinolytic inhibitor, started as soon as it was released from Shosuke Okamoto's lab in the early 1960s. It was first prescribed to females with heavy menstrual blood loss and to patients with hereditary bleeding disorders. Soon the indications were widened to elective sur...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2014.11.012
更新日期:2015-02-01 00:00:00