Abstract：
:Envenomation caused by Lonomia obliqua caterpillars is an increasing problem in Southern Brazil. The clinical profile is characterized by a profound hemorrhagic disorder. In the present study, we describe the characterization of a fibrin(ogen)olytic factor (lonofibrase) isolated from a venomous secretion of the caterpillars. The crude extract showed a dose-dependent inhibitory effect in the rate of thrombin-induced fibrinogen clotting and produced fragmentation of fibrinogen. Isolation of the fibrin(ogen)olytic enzyme was achieved by combining ion exchange chromatography followed by gel filtration in a fast protein liquid chromatography (FPLC) system. A single 35-kDa band was identified and the isolated enzyme named lonofibrase. Lonofibrase rapidly degrades Aalpha and Bbeta chains of fibrinogen, also being able to cleave fibrin in a distinct way from that observed with plasmin. The presence of lonofibrase with both fibrinogenolytic and fibrinolytic activities in L. obliqua secretion is coherent with the severe hemorrhagic clinical profile resulting from envenomation caused by these insects.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Pinto AF,Dobrovolski R,Veiga AB,Guimarães JAdoi
10.1016/j.thromres.2004.01.012subject
Has Abstractpub_date
2004-01-01 00:00:00pages
147-54issue
2eissn
0049-3848issn
1879-2472pii
S0049384804000714journal_volume
113pub_type
杂志文章abstract：:Tissue factor (TF) is a transmembrane protein which, in complex with factor (F)VIIa, initiates blood coagulation. Numerous studies have determined TF epitopes and individual amino acids which play an important role in the TF/FVIIa complex formation and its activity towards natural substrates. However the subject of ce...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2012.02.022
更新日期：2012-05-01 00:00:00
abstract：:Four monoclonal antibodies have been produced, which are specific for the Ca2+ or Sr2(+)-induced conformation of human factor IX. Certain, but not all, gamma-carboxy-glutamic acid residues in factor IX are involved in the epitope expression together with the conformation stabilized by the adjacent region of Gla-domain...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90306-w
更新日期：1990-06-15 00:00:00
abstract：BACKGROUND:The results of the EINSTEIN-DVT/PE and AMPLIFY trials, which compared rivaroxaban and apixaban with conventional anticoagulation therapy for acute venous thromboembolism (VTE), respectively, are often compared. However, the trials differed in duration of therapy (3-12 and 6months, respectively) and in patien...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/j.thromres.2016.11.014
更新日期：2017-01-01 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：: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：:Severe prekallikrein (Fletcher factor) deficiency was diagnosed in a 49-year-old woman and in 3 of her siblings. Functional prekallikrein (PKK) activity was found below 1% by clotting assay and 20% by amidolytic assay in all the affected subjects; PKK cross-reacting material (CRM) was present in all the patients (anti...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90222-x
更新日期：1990-12-01 00:00:00
abstract：:Plasma membranes of pig platelets were isolated and subjected to solubilization with digitonin. Binding of [3H]ketanserin to the solubilized membrane fraction, optimal at pH 7.5, was time and protein dependent and was greatly reduced by increasing ionic strength of the incubation buffer. Saturation analysis and inhibi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90253-1
更新日期：1985-09-15 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：OBJECTIVE:To investigate the risk of venous thromboembolism (VTE) among patients with autoimmune hemolytic anemia (AIHA). METHODS:We conducted a systematic review and meta-analysis of observational studies that reported odds ratio, relative risk, hazard ratio or standardized incidence ratio comparing the risk of VTE i...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.thromres.2015.09.004
更新日期：2015-11-01 00:00:00
abstract：:Severe bleeding took place in a patient when abdominal aneurysm was removed by operation. Bleeding continued after infusion of heparin, antithrombin III (ATIII), fresh platelets and fresh blood. Infusion of tranexamic acid resulted in an immediate cessation of bleeding and improvement of his general condition. Sometim...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90167-b
更新日期：1990-04-15 00:00:00
abstract：:The action of AD6 as an anti-thrombotic agent was studied in a model of coronary artery thrombosis and on platelet aggregation in the dog. AD6 (10-100 microM) in vitro inhibited aggregation induced by ADP, epinephrine, collagen and PAF (platelet aggregating factor) used at their threshold concentration for maximal agg...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90163-x
更新日期：1985-08-15 00:00:00
abstract：INTRODUCTION:The low-molecular-weight heparins have been demonstrated to have antiangiogenic effects in various assays. We aimed to demonstrate and compare the antiangiogenic effects of four types of commercially available low-molecular weight heparins in the chick embryo chorioallantoic membrane model. MATERIALS AND ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.05.005
更新日期：2011-10-01 00:00:00
abstract：:Dietary intake of fish oils, rich in the polyunsaturated fatty acids (PUFAs) docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), has given inconsistent results as to their influence on the plasma fibrinogen level (1, 2, 3, 4, 5, 6). In the present study we have examined the effects of various fatty acids, the ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(95)00152-h
更新日期：1995-10-01 00:00:00
abstract：INTRODUCTION:Venous thromboembolism is a common cause of morbidity and mortality. Although cirrhosis has classically been considered as an acquired bleeding diathesis, there is increasing evidence that rejects the traditional belief that these patients are naturally protected against venous thromboembolism. However, an...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.thromres.2013.08.001
更新日期：2013-10-01 00:00:00
abstract：BACKGROUND:Deep vein thrombosis (DVT) is a common multi-factorial disease with a partially understood aetiology. Although the roles of high factor (F)VIII and von Willebrand factor (VWF) levels are recognized, that of ADAMTS13 is still unclear. AIM:To assess the association between ADAMTS13 activity levels, VWF antige...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.10.037
更新日期：2021-01-01 00:00:00
abstract：:All the thrombolytic agents currently in clinical use act as plasminogen activators. In this study evidence is presented that also oxidants of the phagocyte type are of fibrinolytic efficiency in vivo. Activated phagocytes participate in physiologic fibrinolysis. The cells generate plasminogen activators and reactive ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90189-4
更新日期：1991-05-01 00:00:00
abstract：INTRODUCTION:Remote ischaemic conditioning (RIC) has been shown to prevent platelet activation during ablation for atrial fibrillation. RIC has also been associated with more postoperative transfusion in the off-pump coronary artery bypass graft surgery (OPCAB) patients. We evaluated the effects of RIC on coagulation f...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.01.004
更新日期：2020-03-01 00:00:00
abstract：BACKGROUND:Nuclear factor kappa B (NF-kappa B) activation and tissue factor (TF) expression may contribute to lethality in sepsis. Inappropriate in vivo expression of TF is likely responsible for fibrin deposition in sepsis-associated disseminated intravascular coagulation (DIC). Clinical assessment of TF expression ha...
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.2003.09.017
更新日期：2003-01-01 00:00:00
abstract：:Murine monoclonal antibodies (mAb) were raised to a purified product of bovine PF-4, a 9,500 dalton protein with heparin neutralization activity comparable to that of human PF-4. Using a non-radioactive slide immunoenzymatic assay, four major classes of mAb could be identified when comparisons were made between purifi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90384-1
更新日期：1986-03-15 00:00:00
abstract：:An issue of great importance and continuing concern with regard to all products derived from human plasma is their safety from potential contaminants in the source material from which they are purified. Since viral contaminants are a major safety consideration with these products, a number of different methods, includ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(02)00044-0
更新日期：2002-03-01 00:00:00
abstract：OBJECTIVES:Screening of patients with sepsis for disseminated intravascular coagulation (DIC) has been recommended in several guidelines. However, DIC screening is still not widely accepted as an essential component of sepsis management, partly because of a lack of evidence that DIC screening has an effect on mortality...
journal_title：Thrombosis research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.thromres.2017.11.023
更新日期：2018-01-01 00:00:00
abstract：INTRODUCTION:Platelets and the coagulation system may be involved in the pathogenesis of pre-eclampsia. We investigated whether platelet and coagulation activation markers, are elevated in pre-eclampsia. MATERIALS/METHODS:Case-control study in which activated platelets, platelet-monocyte/ neutrophil aggregates, platel...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2009.09.013
更新日期：2010-03-01 00:00:00
abstract：:Heparin-induced thrombocytopenia (HIT) is a transient hypercoagulability state initiated, paradoxically, by the anticoagulant, heparin. It is characterized by antibody-induced activation of platelets, leading to thrombin generation. Many patients with HIT develop thrombosis; even when heparin is stopped because of "is...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(03)00336-0
更新日期：2003-05-01 00:00:00
abstract：:There are some issues in the current factor (F)VIII replacement therapy for severe hemophilia A. One is mental and physical burden for the multiple intravenous infusions, and the other is difficulty in the hemostatic treatment for the patients with FVIII inhibitor. The development of novel drug with fully hemostatic e...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(16)30361-9
更新日期：2016-05-01 00:00:00
abstract：:A semi-synthetic 1-0-alkyl-2-acetyl-sn-glycero-3-phosphocholine (alkylacetyl-GPC) was shown to be highly species selective in its capacity to cause platelet aggregation and serotonin release. No effects were elicited on the rat or mouse platelets while platelets from human, dog, cat, rabbit, guinea pig and horse were ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90234-1
更新日期：1982-02-15 00:00:00
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：BACKGROUND:Postmenopausal hormone therapy is associated with many diseases and conditions, e.g., cardiovascular diseases and asthma, but the underlying molecular mechanisms are incompletely understood. The aim of the current study was to investigate the effect of four different postmenopausal hormone therapy regimens o...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2011.12.009
更新日期：2012-07-01 00:00:00
abstract：BACKGROUND:Thrombosis and complement activation are pathogenic features of antiphospholipid syndrome (APS). Their molecular link is Plasma carboxypeptidase-B, also known as thrombin activatable fibrinolysis inhibitor (TAFIa), which plays a dual role: anti-fibrinolytic, by cleaving carboxyl-terminal lysine residues from...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.06.028
更新日期：2017-10-01 00:00:00
abstract：AIMS:acutely ill medical patients are at increased risk of venous thromboembolism (VTE) and often require thromboprophylaxis, but patient selection and adequate therapeutic decisions may be difficult due to the heterogeneity and the complexity of this population. We conducted a survey among a large cohort of Italian ph...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.06.013
更新日期：2014-09-01 00:00:00
abstract：:When activated in vitro, thrombin-activatable fibrinolysis inhibitor (TAFI) slows clot lysis by cleaving the C-terminal lysine and arginine residues from partially degraded fibrin. An inhibitor of carboxypeptidase isolated from potato (CPI) reverses prolongation of clot lysis by inhibiting activated TAFI. We investiga...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00184-5
更新日期：2000-05-15 00:00:00
