Abstract:
:Factors affecting iron efflux from the isolated perfused rat liver were studied following the intravenous administration of transferrin-(59)Fe or transferrin-(55)Fe administered to the rat from 1.5 h to 3.5 d before perfusion of the liver. The liver was perfused with rat red cells suspended either in rat plasma or Eagle's Basal Medium (EBM). The mean rate of efflux into a plasma pool containing normal iron and transferrin concentrations was 0.9% of the initial hepatic radioactive iron pool per hour. In EBM the average rate of efflux was 0.1%/h and this could be increased to the rate observed with plasma by the addition of apotransferrin. The rate of iron release from the liver in the presence of apotransferrin or other chelators was inversely proportional to the time of prelabelling. Maximal release rates were observed in livers perfused within 5 h of administering transferrin-(59)Fe to the rat. The effect of apotransferrin on efflux into EBM was concentration dependent. However, the maximum release of liver iron by apotransferrin occurred at physiological apotransferrin concentrations and addition of apotransferrin to plasma produced no increase in the rate of iron efflux. The stimulation of iron release in EBM caused by apotransferrin could be reversed by reducing the unsaturated iron binding capacity of the perfusate, either by addition of iron or removal of apotransferrin. However, increasing the iron concentration in the perfusate by the addition of iron-saturated transferrin without any reduction in the unsaturated iron binding capacity additionally increased iron release into plasma and EBM. This presumably reflects the exchange of plasma transferrin-(56)Fe for liver (59)Fe. Hence iron release measured in these studies represent the sum of two processes-net release of (59)Fe induced by apotransferrin and iron exchange between plasma and liver iron pools. Apotransferrin and desferrioxamine were equally effective, per unit iron binding capacity, in mobilizing liver iron, and may compete for the same parenchymal iron pool. This suggests that mobilization of iron by apotransferrin may depend solely on its ability to chelate ferric iron and not on a more specific ferroxidase activity or interaction with membrane receptors.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Baker E,Morton AG,Tavill ASdoi
10.1111/j.1365-2141.1980.tb07184.xsubject
Has Abstractpub_date
1980-08-01 00:00:00pages
607-20issue
4eissn
0007-1048issn
1365-2141journal_volume
45pub_type
杂志文章abstract::Minimal residual disease (MRD) assessment is a powerful prognostic factor for determining the risk of relapse in childhood acute lymphoblastic leukaemia (ALL). In this Swedish multi-centre study of childhood ALL diagnosed between 2002 and 2006, the MRD levels were analysed in 726 follow-up samples in 228 children usin...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2010.08456.x
更新日期:2011-03-01 00:00:00
abstract::We retrospectively report data on 28 patients with haematological malignancy and trisomy 13 (25 cases) or tetrasomy 13 (three cases) as the primary acquired cytogenetic change. Peripheral blood and/or bone marrow morphology was reviewed in 25/28 cases and the final diagnosis was as follows: AML M0 (11), AML M1 (6), AM...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00760.x
更新日期:1998-06-01 00:00:00
abstract::We report two cases of acute myeloid leukaemia FAB classification M4Eo with high white cell counts at presentation, who developed acute respiratory failure with pulmonary infiltrates on chest radiograph soon after commencing conventional cytotoxic chemotherapy plus all-trans retinoic acid (ATRA). We suggest that in pa...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.02043.x
更新日期:2000-06-01 00:00:00
abstract::The presence of small amounts of C3d on freshly obtained normal red blood cells (RBC) was demonstrated by a radio-labelled antiglobulin technique; this increased 1.5-fold after incubation in fresh normal serum. No significant further increase in bound C3d was demonstrated for cDE/cDE, CDe/CDe, -D-/-D- RBC maximally se...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1980.tb07150.x
更新日期:1980-06-01 00:00:00
abstract::Bone marrow (BM) from patients affected by multiple myeloma (MM), exhibiting monoclonal gammopathy of undetermined significance (MGUS) or with non-Hodgkin lymphoma (NHL) as well as from healthy donors were investigated for the presence of human herpesvirus-8 (HHV-8) DNA sequences. ORF 26 sequences were detected in 36-...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02702.x
更新日期:2001-04-01 00:00:00
abstract::Treatment with 75 microg/kg/d intravenous (i.v.) anti-D was compared with 50 microg/kg/d in a prospective randomized study of 27 RhD-positive, human immunodeficiency virus-negative, adult, acute, non-splenectomized patients with immune thrombocytopenic purpura (ITP) and platelet counts < or = 30 x 109/l. The higher do...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2141.2001.02627.x
更新日期:2001-03-01 00:00:00
abstract::Myeloma cells thrive in an environment of sustained inflammation, which impacts the development and evolution of the disease, as well as drug resistance. We evaluated the impact of genetic polymorphisms in the Toll-like receptor 4 (TLR4) pathway, which have been implicated in different inflammatory responses in the ou...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.13786
更新日期:2016-01-01 00:00:00
abstract::We have previously established a serum-free (SF) culture medium, which supports normal haemopoietic progenitor cell growth for at least 4 weeks as does conventional serum dependent (SD) medium. In the present study, we investigated the efficacy of such a defined SF liquid medium which sustained in vitro residual norma...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb04380.x
更新日期:1991-05-01 00:00:00
abstract::There is evidence for increased factor VII turnover and the associated increased thrombin generation and fibrinolytic activities in sickle cell disease (SCD) that may affect in vivo platelet and endothelial cell reactivity. We studied the release of specific eicosanoids that are indicative of in vivo platelet activati...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb08316.x
更新日期:1994-07-01 00:00:00
abstract::Induction of fetal haemoglobin (HbF) is a promising therapeutic approach for the treatment of β-thalassaemia and sickle cell disease (SCD). Several pharmacological agents, such as hydroxycarbamide (HC) and butyrates, have been shown to induce the γ-globin genes (HBG1, HBG2). However, their therapeutic use is limited d...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12814
更新日期:2014-06-01 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::A female patient with delayed haemolytic transfusion reaction due to anti-M antibody is described. Diagnosis was based on laboratory evidence of haemolysis and on characteristic serological findings. Anti-M was detected in the recipient's serum 7 d after the last transfusion episode. This alloantibody had not been pre...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00970.x
更新日期:1998-10-01 00:00:00
abstract::The role of factor XI (FXI) in blood coagulation has been clarified in recent years by descriptions of FXI-deficient patients who are prone to excessive bleeding after haemostatic challenge. We have studied a large kindred of an Italian FXI-deficient patient with a previously undescribed mutation. The propositus, a 68...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01150.x
更新日期:1999-01-01 00:00:00
abstract::The activities of glucose-6-phosphate dehydrogenase (D-glucose-6-phosphate: NADP oxidoreductase, G6PD), 6-phosphogluconate dehydrogenase (6-phospho-D-gluconate: NADP oxidoreductase, 6PGD), hexokinase (ATP: D-hexose 6-phosphotransferase, Hx), lactate dehydrogenase (D-lactate: NAD oxidoreductase, LDH). glutamate oxaloac...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1975.tb01823.x
更新日期:1975-02-01 00:00:00
abstract::Our knowledge of the cellular and molecular mechanisms of platelet production has greatly expanded in recent years due to the opportunity to culture in vitro megakaryocytes and to create transgenic animals with specific genetic defects that interfere with platelet biogenesis. However, in vitro models do not reproduce ...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.12752
更新日期:2014-04-01 00:00:00
abstract::Diamond-Blackfan anaemia (DBA) is an inherited bone marrow failure syndrome (IBMFS) characterized by red cell aplasia. Mutations in ribosomal genes are found in more than 50% of cases. Elevated erythrocyte adenosine deaminase (eADA) was first noted in DBA in 1983. In this study we determined the value of eADA for the ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12167
更新日期:2013-02-01 00:00:00
abstract::In four unrelated patients with chronic haemolysis and markedly reduced red blood cell (RBC) glutathione (49.5%, 12.6%, 11.5% and 15% of the normal concentration respectively), a severe glutathione synthetase (GSH-S, EC 6.3.2.3) deficiency was found. One case exhibited a neonatal haemolytic anaemia associated with oxo...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2141.2001.02526.x
更新日期:2001-02-01 00:00:00
abstract::Imatinib mesylate is useful for facilitating allogeneic stem cell transplantation (allo-SCT) in advanced-phase chronic myelogenous leukaemia (AP-CML) patients. However, although the side-effects of imatinib are usually minor, cardiac morbidity can develop as a latent adverse effect post SCT when a myeloablative SCT is...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04288.x
更新日期:2003-05-01 00:00:00
abstract::Antibodies that inhibit von Willebrand Factor (VWF)-cleaving protease activity occur in patients with acute thrombotic thrombocytopenic purpura (TTP) and often persist in the chronic phase. A deficiency of this protease is likely to be responsible for the generation of ultrahigh VWF multimers and influence the formati...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.0007-1048.2002.03349.x
更新日期:2002-03-01 00:00:00
abstract::Patients with Down syndrome have been found to have characteristic in vivo and in vitro methotrexate toxicity. The in vitro methotrexate toxicity characteristic of Down syndrome can be diminished by the in vivo administration of supplemental high doses of folic acid. A possible explanation for the increased sensitivit...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb08390.x
更新日期:1995-03-01 00:00:00
abstract::Anti-thymocyte globulins (ATG) are currently used to prevent graft-versus-host disease in haematopoietic stem cell transplants from alternative donors and to treat and prevent acute organ rejection after transplantation. Many recent studies have demonstrated that ATG can also be beneficial in patients with myeloma, ly...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2009.07904.x
更新日期:2009-12-01 00:00:00
abstract::Cold agglutinin syndrome (CAS) is usually associated with IgM cold agglutinins with titres exceeding 1000 at 4 degrees C and a thermal amplitude of 30-32 degrees C. Occasionally patients are encountered who although having clinical and laboratory findings compatible with CAS do not have the characteristic serological ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1977.tb00623.x
更新日期:1977-04-01 00:00:00
abstract::It is the capacity to generate thrombin, and the enzymatic work that thrombin does, that determines blood coagulability. Therefore, measurement of the enzymatic work potential of thrombin provides a method for quantifying the composite effect of the multiple factors that determine coagulation capacity. The application...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2005.05612.x
更新日期:2005-09-01 00:00:00
abstract::Our paper describes two Sardinian families with alpha-beta thalassaemia interaction. In the first (family S), the propositus, whose haemoglobin pattern at birth consisted of about 25% Hb Bart's and 75% Hb F, successively developed a clinical and haematological picture typical of Cooleys anaemia. Haematological and glo...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1979.tb05849.x
更新日期:1979-02-01 00:00:00
abstract::The laboratory diagnosis of heparin-induced thrombocytopenia (HIT) is based on an enzyme immunoassay combined with a functional test, and serotonin release assay (SRA) is the gold standard for detecting activating HIT antibodies. However, a recent atypical history of HIT prompted us to evaluate whether addition of pla...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.14955
更新日期:2017-12-01 00:00:00
abstract::Primary mediastinal B-cell lymphoma (PMBL) shows chromosome 9p anomalies in 50% of cases. Based on reports that p16INK4A gene, located on this chromosomal arm, is frequently altered in aggressive lymphomas, we analysed for alterations of this gene in 27 cases of PMBL, which were part of a series of 32 PMBL cases that ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01678.x
更新日期:1999-10-01 00:00:00
abstract::The myelodysplastic syndromes (MDS) display both haematological and biological heterogeneity with variable leukaemia potential. MicroRNAs play an important role in tumour suppression and the regulation of self-renewal and differentiation of haematopoietic progenitors. Using a microarray platform, we evaluated microRNA...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2011.08581.x
更新日期:2011-04-01 00:00:00
abstract::Although many cases of multiple myeloma (MM) and monoclonal gammopathy of undetermined significance (MGUS) are cytogenetically normal, interphase fluorescence in situ hybridization (FISH) analyses reveal aberrations in the majority of the cases. Most likely, non-neoplastic cells are more prone to divide in culture tha...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.05060.x
更新日期:2004-08-01 00:00:00
abstract::Bortezomib in combination with cyclophosphamide and dexamethasone (CyBorD, is a well-established frontline chemotherapy regimen for patients with multiple myeloma, but prospective data on elderly non-transplant eligible patients is limited. A total of 155 patients aged 70 years or older with newly diagnosed multiple m...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.16095
更新日期:2019-11-01 00:00:00
abstract::T cells modified with anti-CD19 chimeric antigen receptor (CAR) containing either CD28 or 4-1BB (also termed TNFRSF9, CD137) costimulatory signalling have shown great potential in the treatment of acute lymphoblastic leukaemia (ALL). However, the difference between CD28 and 4-1BB costimulatory signalling in CAR-T trea...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.15195
更新日期:2018-05-01 00:00:00