Abstract：
:Heparinase degraded heparin fragments (HDHF) are enriched with a UV chromophore and can be utilized as calibrators to determine the molecular weight profile of low molecular weight heparins (LMWH's). In a standard protocol (1), the second to the last peak is assumed to be a hexasaccharide with a molecular weight of 1.8 kDa. All other peak molecular weights in the elution profile are assigned based upon this assumption. In this study, synthetic analogues of heparin with a defined molecular weight have been used to investigate the validity of this assumption. These compounds included a sulfated bis-lactobionic acid amide (2.4 kDa), a pentasaccharide (1.7 kDa), and lactose polysulfate (1.2 kDa). With reference to these internal standards, the second to the last peak of the HDHF mixture was found to elute after the pentasaccharide and close to the lactose polysulfate suggesting that it is a tetrasaccharide. For additional validation, calibration curves were constructed using individual calibrators as the reference method as well as the HDHF method. Several low molecular weight heparins were profiled for their molecular weight using these methods. In comparison to the reference method, the molecular weights obtained with the HDHF method were 25-40% higher. When the results were recalculated assuming the molecular weight of the second to the last peak as 1.2 kDa, the HDHF results compared well with the reference method. Additionally, it is seen that the HDHF method does not identify molecular components greater than 8.0 kDa.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Jeske W,Ahsan A,Fareed Jdoi
10.1016/0049-3848(93)90222-asubject
Has Abstractpub_date
1993-04-01 00:00:00pages
39-50issue
1eissn
0049-3848issn
1879-2472pii
0049-3848(93)90222-Ajournal_volume
70pub_type
杂志文章abstract：:Patients with active cancer have a heightened risk of venous thromboembolism (VTE). This risk is further increased by the initiation of chemotherapy. Although previous studies have suggested that the use of parenteral thromboprophylaxis in all ambulatory cancer patients receiving chemotherapy significantly decreases t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.01.018
更新日期：2018-04-01 00:00:00
abstract：:Reliable information on what patients with venous thromboembolism (VTE) are at increased risk to die of pulmonary embolism (PE) or bleeding (and the time course of the two fatal events) could likely help to better use anticoagulant therapy by improving selection of patients in whom its benefit will likely outweigh the...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(19)30358-5
更新日期：2019-09-01 00:00:00
abstract：:Lipopolysaccharide-containing outer membrane vesicles (OMV-LPS) which are spontaneously released from Neisseria meningitidis during logarithmic growth were studied for their ability to induce procoagulant (tissue factor), profibrinolytic (urokinase-type plasminogen activator) and antifibrinolytic (plasminogen activato...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00256-0
更新日期：2001-05-15 00:00:00
abstract：:This study compares selected properties of purified tryptic fragments of human von Willebrand (vW) protein in order to better understand how the M(r) 116,000 fragment retains activity in ristocetin-induced platelet agglutination. Wheat germ agglutinin (WGA) aggregation of platelet-rich plasma was potentiated by preinc...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90408-5
更新日期：1983-08-01 00:00:00
abstract：:We investigated on how to effectively administer orally factor VIII preparation to two patients with von Willebrand's disease as volunteers, and the following results were obtained: Bleeding time and aPTT were shortened, but no change of PT was observed. Factor VIII:C increased slightly, but no significant increase wa...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90211-7
更新日期：1985-06-15 00:00:00
abstract：CONTEXT:Recently, there has been an increasing number of reports of incidental pulmonary embolism (PE) in patients undergoing chest computer tomography (CT) for reasons other than the research of suspected PE. Natural history of incidental PE remains unclear. OBJECTIVES:To estimate the prevalence of incidental PE, to ...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析
doi：10.1016/j.thromres.2010.03.016
更新日期：2010-06-01 00:00:00
abstract：:The clinical feature in patients with congenital factor VII deficiency is in part dependent on the underlying genetic defect, but the mechanisms influencing the genotype-phenotype correlation remain to be fully elucidated. In addition, thromboembolic events have been reported. Compensatory mechanisms involving vitamin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00410-2
更新日期：2001-03-15 00:00:00
abstract：:We studied a Japanese family with type I antithrombin (AT) deficiency and identified a novel in-frame deletion mutation (-ATG at nucleotide position of 2771-2773) in the AT gene, which predicted loss of a methionine (Met) at amino acid number of 103. In addition, we found a single base replacement of G to A at nucleot...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2004.12.004
更新日期：2005-01-01 00:00:00
abstract：INTRODUCTION:In-vitro and in-vivo models suggest the influence of low-molecular weight heparin on conception in infertile women undergoing in vitro fertilization procedures (IVF). In this randomized controlled trial we assessed whether a low-molecular weight heparin (parnaparin) could affect IVF outcomes. MATERIALS AN...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2017.08.006
更新日期：2017-11-01 00:00:00
abstract：:This study compared the responses of canine and human platelets to various aggregating agonists in the presence or absence of extracellular ATP and ATP analogues. Canine and human platelets were approximately equally reactive with ADP or collagen while the canine platelets were about 10 fold more sensitive to thrombin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90214-9
更新日期：1993-10-15 00:00:00
abstract：BACKGROUND:A recent study suggested that the plasminogen activator inhibitor (PAI)-1 4G/5G genotype may play a role in the resolution of deep vein thrombosis (DVT) after surgery. In the present study, we investigated the association between PAI-1 4G/5G genotype and the persistence of venous occlusion after acute idiopa...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.03.017
更新日期：2017-05-01 00:00:00
abstract：:A simple and discriminating assay for the determination of the fast-acting plasminogen activator inhibitor (PAI) activity in human plasma is described. The method is based on the inhibition of purified tissue plasminogen activator (tPA) by plasma diluted with a PAI-depleted plasma and the subsequent measurement of res...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90250-8
更新日期：1989-11-01 00:00:00
abstract：:The cerebral vascular supply is constructed to protect the cerebral hemispheres and brainstem from the consequences of blood flow cessation. Reversal of blood flow around local obstructions is a feature of the microvascular beds of the striatum and cerebral cortex. Cerebral capillaries of these beds consist of endothe...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(00)00218-8
更新日期：2000-05-01 00:00:00
abstract：:We provide a centralised thrombophilia screening service with sample transfer by courier or first class mail, a practice common to many centres. Sample quality is of prime importance, thus we have assessed the effect of delayed sample handling upon the haemostatic variables within our thrombophilia profile. This compr...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(97)00187-4
更新日期：1997-09-15 00:00:00
abstract：INTRODUCTION:Pulmonary embolism (PE) has a high morbidity and mortality. Hence it is important to recognize factors associated with higher risk of adverse outcomes in hemodynamically stable patients. Heart-type fatty acid binding protein (H-FABP) is a novel marker evaluated in recent years for prognosis in acute PE. Ou...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析
doi：10.1016/j.thromres.2014.10.007
更新日期：2015-01-01 00:00:00
abstract：:A quantitative assessment was made of the distribution of arachidonic acid (AA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) among the individual sub-classes (diacyl, alkylacyl, alkenylacyl) of the various platelet phospholipids of human subjects consuming a fish oil concen...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(88)90181-8
更新日期：1988-04-01 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：:Epidemiological studies have shown that oral contraceptives increase the risk of thromboembolic disease in susceptible women however the mechanisms involved are unclear. We investigated whole blood platelet aggregation in 44 women randomly allocated to 6 cycles of treatment with either gestodene (75ug) or desogestrel ...
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(96)00013-8
更新日期：1996-02-15 00:00:00
abstract：:The sequel of survivors after hospitalisation for an acute myocardial infarction was studied during the following 15 years in 48 patients treated with streptokinase and in 41 controls. No significant difference was seen in the morbidity or mortality during the first 6 months nor in the mortality thereafter. ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90233-0
更新日期：1984-08-15 00:00:00
abstract：BACKGROUND:It has been previously shown that platelets of patients with diabetes are more reactive and less responsive to anti-platelet drugs compared with platelets from subjects without diabetes. Studies examining the effect of glycemic control on platelet reactivity have yielded conflicting data. Thus, in this study...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.05.010
更新日期：2014-07-01 00:00:00
abstract：INTRODUCTION:The outstanding importance of (soluble) CD40L to cardiovascular disease (CVD) is becoming increasingly apparent as CD40L is an important mediator of thrombotic and inflammatory processes. Platelets are the main source for CD40 ligand, linking platelet stimulatory events to inflammation and adverse adaptive...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2012.04.017
更新日期：2012-09-01 00:00:00
abstract：:The purpose of this study was to investigate the effects of tissue factor (thromboplastin), the initiating factor of the extrinsic clotting system, on angiogenesis in vivo and in vitro. In vivo angiogenesis was examined using a diffusion chamber assay in rats. After a week of implantation of the diffusion chambers con...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00101-2
更新日期：1999-11-01 00:00:00
abstract：BACKGROUND:Acquired von Willebrand Syndrome is a rare bleeding disorder, which arises in individuals with no personal or family history of bleeding, associated with lymphoproliferative and myeloproliferative disorders or other diseases. AIM:To develop a two-step approach assay to detect autoantibodies against VWF and ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.09.020
更新日期：2014-12-01 00:00:00
abstract：:A prolongation of the thrombin clotting time by at least 25% was found in the presence of 8 of 26 IgG myeloma proteins, 2 of 5 IgA proteins and 1 of 10 macroglobulins, in a concentration of 10 mg/ml. Normal pooled immunoglobulin in concentrations up to 83 mg/ml were inactive. 2 IgG and 2 IgM monoclonal immunoglobulins...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90315-3
更新日期：1984-07-01 00:00:00
abstract：:We have previously reported on a microassay based on human kininogens as cysteine proteinase inhibitors (CPIs), which could quantify partially purified kininogens from different biological fluids (J Pharmacol Meth 26, 113-124, 1991). In the present study we describe a functional method that, when assuming a 1:1 stoich...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(96)00073-4
更新日期：1996-05-01 00:00:00
abstract：INTRODUCTION:Unicompartmental knee arthroplasty (UKA) has increased due to potential favourable complication rates when compared to total knee arthroplasty (TKA). Although venous thromboembolism (VTE) is a well-documented complication after TKA limited data is available after UKA and mostly presented as secondary findi...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.07.002
更新日期：2020-11-01 00:00:00
abstract：:PAF (1 ug/kg) injected intravenously (i.v.) into anesthetized rabbits resulted in marked loss of circulating platelets and leukocytes. Administration of FR-900452 1-methyl-3-(1-(5-methylthiomethyl-6-oxo-3-(2-oxo-3-cyclopenten-1-y lidene)- 2-piperazinyl) ethyl)-2-indolinone, a specific PAF inhibitor, at a dose of 10 mg...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90344-0
更新日期：1986-06-01 00:00:00
abstract：INTRODUCTION:This study aimed to determine the risk factors for subclinical umbilical catheter-related thrombosis (UCRT) and its association with clinical morbidities. MATERIALS AND METHODS:In infants without any symptoms associated with umbilical catheterization, the presence of thrombosis was monitored using abdomin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.05.034
更新日期：2020-10-01 00:00:00
abstract：:Most proteolytic enzymes that cleave glycoprotein lb (GPlb) also cleave other glycoproteins or receptors on the surface of platelets. We have used an O-sialoglycoprotein endoprotease from Pasteurella haemolytica that selectively cleaves the heavily O-glycosylated GPlb, but does not cleave N-linked glycoproteins or ung...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00240-1
更新日期：2000-07-15 00:00:00
abstract：:Evidence is presented for in vitro high affinity binding of serotonin (5-HT) by beta-thromboglobulin (beta TG) and platelet factor 4 (PF4) from human blood. Results include: 1) identification by radioimmunoassay of PF4 in specifically bound material obtained by 5-HT affinity chromatography of human platelet extracts; ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90044-0
更新日期：1983-02-01 00:00:00
