Abstract：
:A tritium-labelled low molecular weight heparin fragment with an average molecular weight of 4000-6000 (Fragmin), was fractionated into its high and low affinity forms for antithrombin. The fractions obtained were injected into rabbits, and the plasma half-life (t1/2) volume of distribution (Vd), area under the curve (AUC), total body clearance (TCl) and renal clearance (Clr) were determined. When followed by radioactivity, both the high and low affinity forms of Fragmin as well as Fragmin itself were eliminated from plasma in a biexponential manner. Values for AUC were very low compared to those expected from the given dose. This effect was most pronounced for low affinity-Fragmin demonstrating a significantly higher extravascular distribution of molecules lacking affinity for antithrombin. From radio activity data, it was also demonstrated that the fraction of dose that was eliminated from plasma via non-renal (cellular clearance) mechanisms was higher for heparin (95 per cent) than for Fragmin (77 per cent) after a dose of 100 micrograms/kg. This demonstrates that cellular clearance is of less importance in the plasma elimination of low molecular weight heparin fragment, an effect that may explain their longer plasma half-lifes despite the fact that they are more readily and faster excreated into the urine.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Palm M,Mattsson Cdoi
10.1016/0049-3848(87)90345-8subject
Has Abstractpub_date
1987-10-01 00:00:00pages
51-62issue
1eissn
0049-3848issn
1879-2472pii
0049-3848(87)90345-8journal_volume
48pub_type
杂志文章abstract：:Major orthopaedic surgery is associated with an increased risk of venous thromboembolism. Direct oral anticoagulants (DOACs) are recommended as thromboprophylactic agents after orthopaedic surgery. Although routine monitoring of DOACs in general is not required, measuring DOAC concentration may be necessary in clinica...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/j.thromres.2016.01.012
更新日期：2016-03-01 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：:Numerous factors affect the response to vitamin K antagonists (VKA) including age, dietary vitamin K, other drugs, pharmacogenetics, and disease states. In antithrombotic guidelines, fever is mentioned as a factor that may increase response to VKA. The purpose of this article is to review the available evidence regard...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2014.10.015
更新日期：2015-01-01 00:00:00
abstract：:Severe rejection crises occurred in 13 out of 20 cadaver kidney recipients; removal of the graft was inevitable in 10 cases. The plasminogen levels were found to be lower (76.5 +/- 2.9%) in the 13 patients with impaired graft acceptance (group B) than in the 7 patients experiencing only moderate rejection (group A, 93...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90257-4
更新日期：1986-05-01 00:00:00
abstract：INTRODUCTION:Fluid resuscitation after trauma often results in dilutional coagulopathy that may hinder control of bleeding and, once initial hemostasis has been secured, heighten risk of perioperative bleeding when further surgery is required. Since multiple coagulation factor deficiencies typically accompany fluid res...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2009.10.011
更新日期：2010-03-01 00:00:00
abstract：:This study comprised 50 patients subjected to major abdominal surgery, of which 13 developed deep vein thrombosis (DVT) according to the 125I-fibrinogen test. Plasma was sampled preoperatively, for the specific analysis of tissue plasminogen activator (t-PA) before and during venous occlusion. The recently described f...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90103-3
更新日期：1985-07-15 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：:We have determined that pp60c-src, a protein tyrosine kinase abundant in normal platelets, is present at comparable levels in platelets that are deficient in dense granules (Hermansky-Pudlak syndrome). Relative quantitation of pp60c-src was performed by immunoblot analysis after protein separation by sodium dodecyl su...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90227-2
更新日期：1992-01-01 00:00:00
abstract：:Stent implantation after balloon dilation of coronary arteries has improved clinical prognosis in patients undergoing transluminal coronary angioplasty (PTCA), but late restenosis remains a relevant problem. A previous study has indicated that PAI-1 activity changes immediately after PTCA without stent implantation ar...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章
doi：10.1016/s0049-3848(01)00360-7
更新日期：2001-11-01 00:00:00
abstract：:Seven males with atherosclerotic disease received daily 1.6 g of the thromboxane antagonist BM 13.177 in two separate oral dosages over a period of four days. The drug significantly reduced elevated plasma levels of thromboxane B2, beta-thromboglobulin and platelet factor 4, whereas thromboxane B2 generation was only ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90229-9
更新日期：1984-08-15 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
abstract：:Current guidelines recommend performing laboratory tests aimed at monitoring unfractionated heparin (UFH) treatments within a delay not exceeding 1 to 2 h(s) after sampling when blood is collected into citrated tubes. As such a short delay could be an issue, we evaluated the potential impact of longer delays. For that...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2019.10.019
更新日期：2020-02-01 00:00:00
abstract：:Anticoagulant properties of three sulfated compounds prepared from xylans isolated from corn cobs, larchwood and oatspelts were compared with heparin and sodium pentosan polysulfate (SP-54) by studying their effects on activated partial thromboplastin time (APTT), prothrombin time (PT) and thrombin time (TT) using poo...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90148-4
更新日期：1987-08-01 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：INTRODUCTION:Inter-individual variability in clopidogrel responsiveness is dependent on genetic polymorphisms. We aimed to investigate the impact of 3 genetic polymorphisms involved in clopidogrel metabolism on a strategy of dose-adjustment according to platelet reactivity (PR) monitoring. MATERIAL AND METHODS:[correc...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.thromres.2011.12.038
更新日期：2012-07-01 00:00:00
abstract：:Human platelets contain a single membrane glycoprotein which is susceptible to thrombin proteolysis, glycoprotein V. We have purified 1 mg of glycoprotein V from 10(13) platelets using a combination of gel filtration, hydroxylapatite and ion-exchange chromatographies. Glycoprotein V has a blocked amino-terminus. Follo...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90113-8
更新日期：1989-01-01 00:00:00
abstract：:Danazol, a synthetic androgen reported to increase factor VIII and IX activity levels, was given to 6 hemophiliacs. With danazol therapy (600 mg/da) the APTTs shortened by 30-45% of pre-treatment times. However, the activity levels of the deficient factors did not increase significantly nor consistently with the APTT ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90126-4
更新日期：1985-07-01 00:00:00
abstract：:Venous thromboembolism (VTE) is a preventable disease, yet it is one of the leading causes of death among patients with cancer. Improving risk stratification mechanisms will allow us to personalize thrombo-prophylaxis strategies. We sought to evaluate Collagen and Thrombin Activated Platelets (COAT-platelets) as well ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.10.004
更新日期：2015-12-01 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：: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：:Since the 19(th) century an association between cancer and thromboembolic events has been described, with a poorer survival prognosis. Production and secretion of procoagulant factors affect tumor biology and cancer-associated thrombosis. Tissue factor (TF) exerts coagulant and protease activated receptor (PAR)-depend...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(14)50013-8
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:Administrative data can be used to identify venous thromboembolism (VTE) and major bleeding (MB) events. However, the validity of this data in emergency room discharge records in Canada is unknown. METHODS:We conducted a single-institution retrospective chart re-abstraction study in London, Canada. We ident...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.10.035
更新日期：2015-12-01 00:00:00
abstract：:Gastrointestinal bleeding due to colonic angiodysplasia is a well-recognised complication of von Willebrand disease (vWD), occurring almost exclusively in subtypes of the disease associated with a reduction in high-molecular-weight (HMW) multimers of von Willebrand factor (vWF). A deficiency of vWF HMW multimers also ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2006.01.022
更新日期：2006-01-01 00:00:00
abstract：:The incidence of thrombotic events is higher in neonates compared to children of other age groups. Perinatal and maternal risk factors, as well as the developing neonatal hemostatic system, are contributing factors in the higher rate of thrombosis in this pediatric population. This review summarizes the available lite...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2010.10.009
更新日期：2010-12-01 00:00:00
abstract：:It has been suggested that unstable angina at rest, like acute myocardial infarction, might be associated with a thrombotic process. In order to study the hypothesis that myocardial ischemia during exercise could also be associated with an activation of blood coagulation and/or fibrinolysis, we investigated the presen...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90222-v
更新日期：1992-01-01 00:00:00
abstract：:COVID-19 has been associated with an increased risk of thrombotic events; however, the reported incidence of deep vein thrombosis varies depending, at least in part, on the severity of the disease. Aim of this prospective, multicenter, observational study was to investigate the incidence of lower limb deep vein thromb...
journal_title：Thrombosis research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.thromres.2020.10.035
更新日期：2021-01-01 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：BACKGROUND:Pregnancy is a hypercoagulable state associated with an increased risk of venous thrombosis, which begins during the first trimester, but the exact time of onset is unknown. Thrombin generation, a laboratory marker of thrombosis risk, increases during normal pregnancy but it is unclear exactly how early this...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.06.027
更新日期：2017-09-01 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：:Endothelial cells synthesize and release different proteins involved in their function, and some of these proteins may play important roles in the cellular response to injury, infection, or glucocorticoids. We have examined the profile of proteins released from rabbit coronary microvascular endothelial (RCME) and huma...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90202-n
更新日期：1990-01-01 00:00:00
