Abstract:
:Tissue factor pathway inhibitor (TFPI) is released to circulating blood after intravenous (i.v.) and subcutaneous (s.c.) injections of heparins, and may thus contribute to the antithrombotic effect of heparins. We have recently shown that total TFPI activity, plasma free TFPI antigen, and heparin releasable TFPI were partially depleted during repeated and continuous i.v. infusion of unfractionated heparin (UFH), but not during s.c. treatment with a low molecular weight heparin (LMWH). The difference may be attributed to a different mode of action or the different mode of administration. In the present randomized cross-over study, s.c. administration of therapeutic doses of UFH was compared with s.c. administration of two LMWHs. 12 healthy male volunteers were treated for 3 d with UFH, 250 U/kg twice daily, dalteparin, 200 U/kg once daily, and enoxaparin, 1.5 mg/kg once daily. Six participants were also treated with UFH, 300 U/kg once daily. On day 5 a single dose of either drug was given. Peak levels of total TFPI activity and free TFPI antigen were detected 1 h after injection, whereas maximal prolongation of activated partial thromboplastin time (APTT) and peak levels of anti-factor Xa activity and anti-factor IIa activity were detected after 4 h. On UFH administered twice daily, free TFPI antigen decreased by 44% from baseline level before the first injection on day 1 to pre-injection level on day 5. On UFH administered once daily, basal free TFPI antigen decreased by 50%, 56% and 27% on day 2, 3 and 5 respectively, compared with day 1. Minimal depletion of TFPI was detected during treatment with LMWHs. The study demonstrates the different modes of action of LMWHs and UFH and may help to explain the superior antithrombotic efficacy of LMWHs.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Bendz B,Hansen JB,Andersen TO,Ostergaard P,Sandset PMdoi
10.1046/j.1365-2141.1999.01791.xsubject
Has Abstractpub_date
1999-12-01 00:00:00pages
756-62issue
4eissn
0007-1048issn
1365-2141pii
bjh1791journal_volume
107pub_type
临床试验,杂志文章,随机对照试验abstract::Leucocyte alkaline phosphatase (LAP) is a marker of post-mitotic granulocytes and its activity is reduced or absent in chronic myelogenous leukaemia (CML) granulocytes as a consequence of LAP messenger RNA (mRNA) deficiency. We provide evidence that along the granulocytic maturation in normal marrow, the acquisition o...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::Reversible aggregation of red blood cells (RBC) plays an important role in determining blood flow properties, and it is this aggregation which increases blood viscosity at low shear rates. The structure and sites of venous thrombi, as well as the fact that stasis is a major predisposing factor in venous thrombosis, su...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb04993.x
更新日期:1994-09-01 00:00:00
abstract::It has been proposed that iron accumulation may contribute to atherogenesis by increasing free radical formation and oxidative stress. Epidemiological studies in which the association of iron status with atherosclerosis was assessed raised conflicting results. To test whether genetic haemochromatosis is associated wit...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00898.x
更新日期:1998-09-01 00:00:00
abstract::Rearrangement of the immunoglobulin heavy chain (IgH) gene is widely exploited as a marker of B cell lineage and clonality in the pathology of lymphoproliferative disorders. We have developed a simple, polymerase chain reaction (PCR) based method for detecting IgH gene rearrangement which relies on the observation tha...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb08570.x
更新日期:1991-03-01 00:00:00
abstract::Transient myeloproliferative disorder (TMD) of the newborn and acute megakaryoblastic leukaemia (AMKL) in children with Down syndrome (DS) represent paradigmatic models of leukaemogenesis. Chromosome 21 gene dosage effects and truncating mutations of the X-chromosomal transcription factor GATA1 synergize to trigger TM...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2012.09028.x
更新日期:2012-04-01 00:00:00
abstract::The effect of urea on the oxygen affinity of sickle cells and normal cells was studied up to a concentration of about 1.0 M. Besides the increase in oxygen affinity found in both normal and sickle cells there was a further increase found only in the sickle cells. This specific increase was caused by the direct inhibit...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1975.tb00513.x
更新日期:1975-05-01 00:00:00
abstract::The molecular basis of the three major alleles (Fy(a)/Fy(b)/Fy) of the Duffy (FY) blood group system has recently been established but the Fy(x) phenotype associated with weak expression of the Fy(b) and other FY antigens is poorly understood. In the Fy(x) genes of five unrelated British and Swedish donors with the Fy...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.01083.x
更新日期:1998-12-01 00:00:00
abstract::A patient presented with haemolytic anaemia and a negative direct antiglobulin test (DAT), and was found to have an IgG antibody with anti-Jka specificity in his serum. His red cells were typed as Jk(a-b+). Later he developed idiopathic thrombocytopenic purpura (ITP), and had a positive DAT due to anti-Jka bound to hi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1988.tb02411.x
更新日期:1988-08-01 00:00:00
abstract::Knowledge of the absolute and relative risk of venous thromboembolism (VTE) in and around pregnancy would be crucial in identifying when to commence and cease thromboprophylaxis in women who would benefit from such intervention. We addressed this hypothesis using a large prospective primary care database from the Unit...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2011.08956.x
更新日期:2012-02-01 00:00:00
abstract::An unusual variant of congenital dyserythropoietic anaemia is described presenting as mild haemolytic anaemia with multinucleated erythroblasts in the marrow of the proband. The outcome of her non-consanguineous pregnancy was a third trimester, in utero, fetal demise. The hydropic fetus had dyserythropoiesis with circ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb03119.x
更新日期:1993-07-01 00:00:00
abstract::The aim of our study was to investigate whether haemophilia A patients with inversion of intron 22 are at high risk for non-inhibitory anti-FVIII antibodies development detected by ELISA. It is known that patients with severe forms of haemophilia A are more likely to develop anti-FVIII antibodies. The incidence of inh...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1997.1082922.x
更新日期:1997-06-01 00:00:00
abstract::Anti-cardiolipin antibody (aCL) measurement is only semi-reproducible, and current assays detect irrelevant as well as clinically significant antibodies. Factors found to influence results included the source of the enzyme-linked immunoabsorbent assay (ELISA) plate, and its pretreatment with solvents; the nature of th...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00532.x
更新日期:1998-01-01 00:00:00
abstract::An open, randomised study was performed to determine whether two doses of influenza vaccine were more effective than one to elicit an immune response in 70 patients with haematological malignancies. The responses were not improved by two doses compared with one (influenza A virus serotypes H1/N1 18% vs. 22% and H3/N2 ...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2141.2005.05582.x
更新日期:2005-07-01 00:00:00
abstract::In a phase II study, 12 patients with a myelodysplastic syndrome (MDS) and anaemia (nine transfusion-dependent) were treated with recombinant human erythropoietin (rHuEpo) to assess the therapeutic effect on erythropoiesis and on transfusion requirement. Patients with a low risk of developing acute leukaemia were incl...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb04477.x
更新日期:1991-08-01 00:00:00
abstract::Neutrophils are amongst the first immune cells to arrive at sites of infection and play an important role as the host's first line of defence against invading pathogens. Defects of neutrophil number or function are usually recognized clinically by recurrent infections that often are life-threatening. Over the last few...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2010.08361.x
更新日期:2010-11-01 00:00:00
abstract::The arrangement of the T-cell receptor and immunoglobulin genes has been analysed in five cases of Lennert's lymphoma. All cases showed rearrangement of the gene coding for the beta chain of the T-cell receptor and a germline configuration of the immunoglobulin genes. This provides strong evidence that Lennert's lymph...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1986.tb02208.x
更新日期:1986-11-01 00:00:00
abstract:UNLABELLED:Transplant-related mortality (TRM) remains a major problem in older patients undergoing allogeneic haemopoietic stem cell transplants (HSCTs). We have therefore explored a less intensive conditioning in 33 patients with a median age of 52 years (range 43-60) transplanted from human leucocyte antigen (HLA)-id...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.02123.x
更新日期:2000-06-01 00:00:00
abstract::We report two patients with acute leukaemia who received emetogenic cytotoxic drugs and were on therapeutic doses of sodium valproate for epilepsy. Neither patient reported significant nausea nor vomited at any time during the chemotherapy, at times requiring no anti-emetic treatment whatsoever. We suggest that this a...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb08433.x
更新日期:1995-04-01 00:00:00
abstract::We treated 21 elderly patients with high-risk myelodysplasia (n = 14) or secondary acute myeloid leukaemia (n = 7) with 2 mg of melphalan orally once a day until a complete peripheral response was obtained or until there was evidence of treatment failure. We observed seven (30%) complete and two (10%) partial peripher...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.01825.x
更新日期:2000-01-01 00:00:00
abstract::We analysed the incidence of graft failure, graft-versus-host disease (GVHD) and relapse of leukaemia in 208 patients undergoing allogeneic bone marrow transplantation (BMT) for chronic myeloid leukaemia in chronic phase in eight transplant centres in Europe and the United States. 106 patients received unmanipulated d...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1988.tb07628.x
更新日期:1988-06-01 00:00:00
abstract::Although individuals with sickle cell anaemia (SCA) have elevated baseline inflammation and endothelial activation, the acute phase response to maximal exercise has not been evaluated among children with SCA. We measured the acute phase response to maximal exercise testing for soluble vascular cell adhesion molecule (...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.13782
更新日期:2015-12-01 00:00:00
abstract::We report on quantitative analyses of C5b-9 binding to target red blood cells (RBC) lysed through the action of drug (nomifensine)-dependent antibodies (ddab) and anti-RBC antibodies (warm plus cold agglutinins). Immunoradiometric assays showed that, at any given degree of haemolysis, more C5b-9 was bound to cells sen...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1987.tb02268.x
更新日期:1987-02-01 00:00:00
abstract::Allogeneic stem cell transplantation (alloSCT) is a curative procedure for myelofibrosis. Elderly people are mainly affected, limiting the feasibility of myeloablative regimens. The introduction of reduced-intensity conditioning (RIC) made alloSCT feasible for older patients. Nevertheless, the incidence of myelofibros...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.15952
更新日期:2019-08-01 00:00:00
abstract::The prevalence of Helicobacter pylori infection and the effect of its eradication on platelet count in 48 Japanese patients with autoimmune thrombocytopenic purpura (AITP), including 40 chronic idiopathic thrombocytopenic purpura (ITP) and eight secondary AITP, were investigated. H. pylori infection was found in 25 IT...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03612.x
更新日期:2002-08-01 00:00:00
abstract::A multicentre single-arm study testing the efficacy and toxicity of the oral combination of fludarabine and cyclophosphamide (FC) over 5 d in 75 patients with untreated B cell-chronic lymphocytic leukaemia. Oral FC demonstrated high efficacy with overall (OR) and complete response (CR) rates of 80% and 53%, respective...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2008.07309.x
更新日期:2008-10-01 00:00:00
abstract::A novel human leukaemia cell line, designated TMD7, was established from blast cells of a patient with de novo acute myeloblastic leukaemia with trilineage myelodysplasia (AML/TLD). As seen in the original blast cells, TMD7 cells expressed CD7, CD13, CD33 and CD34 and showed an abnormal karyotype containing -5, -7, -8...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03446.x
更新日期:2002-05-01 00:00:00
abstract::2-3-Dihydroxybenzoic acid was evaluated as a potentially useful, orally effective iron-chelating drug by performing iron balance studies in patients with beta-thalassaemia major. The administration of this substance at 25 mg/kg/d to five patients for 8 d caused an average increase in iron excretion of 4.5 mg/d. When t...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1976.tb03566.x
更新日期:1976-08-01 00:00:00
abstract::The expression of the VAV proto-oncogene in 57 patients with chronic myeloproliferative disease (CMD), B-cell acute lymphoblastic leukaemia (B-ALL) and B-cell non-Hodgkin Lymphoma (B-NHL), and 61 with B-cell chronic lymphocytic leukaemia (B-CLL) was analysed. VAV overexpression was observed in 19.5% of cases and 81% o...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2006.06094.x
更新日期:2006-06-01 00:00:00
abstract::Major ABO mismatching is not considered a contraindication to allogeneic haematopoietic stem cell transplantation (HSCT). Modern reduced-intensity conditioning and reduced-toxicity regimens cause much less myeloablation than conventional myeloablative regimens, such as cyclophosphamide with busulfan or total body irra...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12210
更新日期:2013-03-01 00:00:00
abstract::Among 750 previously untreated patients with multiple myeloma, 27 (4%) presented with plasma cell leukaemia. All but one patient had high tumour mass and, when compared with comparable patients without leukaemia, more frequent extraosseous involvement, thrombocytopenia, high serum lactate dehydrogenase and hypodiploid...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2141.1994.tb05114.x
更新日期:1994-12-01 00:00:00