Abstract:
:Amiodarone has been implicated as a cause of thrombocytopenia but the responsible mechanism is unknown. We performed studies in three patients to characterize the pathogenesis of this complication. No amiodarone-dependent, platelet-reactive antibodies were identified using conventional serological techniques. However, water-insoluble amiodarone solubilized in methanol and diluted to 1·0 mg/ml in aqueous buffer reproducibly promoted binding of IgG antibodies in patient serum to platelets. Solid phase assays identified drug-dependent antibodies specific for platelet glycoproteins (GP)Ia/IIa (integrin α2 β1 ) in each patient and a second antibody specific for GPIIb/IIIa (αII b β3 integrin) in one patient. When studied by ion mobility analysis and transmission electron microscopy, the serologically active amiodarone preparation, a milky suspension, was found to consist of particles 2-30 nm in diameter, typical of a coacervate, a state characteristic of amiodarone in aqueous medium. The findings provide evidence that thrombocytopenia in the three patients studied was caused by drug-dependent antibodies specific for platelet glycoproteins GPIa/IIa and/or GPIIb/IIIa. We postulate that, in vivo, amiodarone may become incorporated into occult lipophilic domains in platelet glycoproteins, producing structural modifications that are immunogenic in some individuals, and that the resulting antibodies can cause platelet destruction in a person taking this drug.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Sahud MA,Caulfield M,Clarke N,Koch R,Bougie D,Aster Rdoi
10.1111/bjh.12521subject
Has Abstractpub_date
2013-10-01 00:00:00pages
260-7issue
2eissn
0007-1048issn
1365-2141journal_volume
163pub_type
杂志文章abstract::A collaborative study on factor VIII related antigen (VIII R:Ag) has been carried out, involving 11 laboratories in the U.K. Samples of two different freeze-dried plasmas were assayed against participants' own local standards by the Laurell electroimmunoassay method. There was reasonably good agreement on the relative...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1980.tb05996.x
更新日期:1980-11-01 00:00:00
abstract::To determine the long-term efficacy of FLT3 inhibitors (FLT3i) in the salvage setting for relapsed and refractory (rel/ref) acute myeloid leukemia (AML) with FLT3 internal tandem duplication (AML FLT3-ITD), we conducted a retrospective study of 120 patients with rel/ref AML FLT3-ITD who received salvage therapy with e...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12299
更新日期:2013-06-01 00:00:00
abstract::MYD88 mutations are present in 95% of Waldenstrom Macroglobulinaemia (WM) patients, and support diagnostic discrimination from other IgM-secreting B-cell malignancies. Diagnostic discrimination can be difficult among suspected wild-type MYD88 (MYD88WT ) WM cases. We systematically reviewed the clinical, pathological a...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.15049
更新日期:2018-02-01 00:00:00
abstract::The use of 111Indium oxine as a platelet label for the performance of platelet life-span studies has been examined. Platelet life-span in normal subjects varied between 8 X 10 and 10 X 36 d. Patients with primary thrombocythaemia had clearly reduced platelet life-span whether or not they presented with vascular occlus...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1984.tb06115.x
更新日期:1984-12-01 00:00:00
abstract::Severe combined immune deficient (SCID) mice were engrafted with human (Hu) peripheral blood lymphocytes (PBL) from a previously alloimmunized donor and transfused with HLA-mismatched platelets. We have previously shown this to be a useful model for platelet transfusion. These engrafted mice (Hu-PBL-SCID mice) produce...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01237.x
更新日期:1999-03-01 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::The present study analysed whether autologous peripheral blood stem cell transplantation (PSCT) improves engraftment, quality of life and cost-effectiveness when compared with autologous bone marrow transplantation (ABMT). Relapsing progressive lymphoma patients (n = 204; non-Hodgkin's lymphoma n = 166; Hodgkin's dise...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1046/j.1365-2141.2001.02926.x
更新日期:2001-08-01 00:00:00
abstract::We have studied the surface expression of the Toll-like receptor family member CD 180 on cells from 78 patients with B-chronic lymphocytic leukaemia (B-CLL). B-CLL cells had variable levels of CD 180 expression, but this was always less than that expressed by normal blood B cells and was stable for 24 months. Signific...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2005.05775.x
更新日期:2005-11-01 00:00:00
abstract::Erythrocyte sedimentation, viscosity, electrophroetic mobility, and osmotic fragility were measured in a study of the rheological behaviour of the erythrocyte in vitro. In comparison with physiological saline solution, a suspending medium containing a gamma2lambda2 monoclonal IgG from a patient with multiple myeloma c...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1979.tb05888.x
更新日期:1979-04-01 00:00:00
abstract::We report a patient who was treated with recombinant (r)-hirudin for heparin-induced thrombocytopenia and developed a flush reaction twice upon re-exposure to 25 mg of subcutaneous r-hirudin. Antihirudin IgG antibodies developed. The patient received 50 mg of PEG-hirudin subcutaneously over 2 days. No side-effects occ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.01837.x
更新日期:2000-03-01 00:00:00
abstract::T- and B-cell function after autologous bone marrow transplantation (ABMT) was assessed and compared with that found after allogeneic BMT and after chemotherapy only. In all 16 patients with acute leukaemia in remission treated with high-dose chemotherapy and single or double ABMT, T-helper numbers and function in an ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1986.tb07547.x
更新日期:1986-08-01 00:00:00
abstract::We examined the in vivo effects and safety of the third generation bisphosphonate, zoledronate (ZOL) alone and combined with imatinib mesylate against primary Philadelphia chromosome positive (Ph+) leukaemic cells. ZOL inhibited the prenylation of Rap1A in leukaemic cells in vitro and synergised with imatinib to enhan...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05648.x
更新日期:2005-08-01 00:00:00
abstract::The effects of donor T cells, or their CD8+ subset, on engraftment and tolerance induction in fetal transplantation were evaluated using an F1-into-parent mouse-model that does not permit a graft-versus-host effect. Gestational day 13 C57BL/6 (H-2Kb) fetuses were transplanted with B6D2F1 (H-2Kb/d) light density bone m...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.05040.x
更新日期:2004-08-01 00:00:00
abstract::Sideroblastic anaemia includes a heterogeneous group of rare conditions, characterized by decreased haem synthesis and mitochondrial iron overload, which are diagnosed by the presence of ringed sideroblasts in the bone marrow aspirate. The most frequent form is X-linked sideroblastic anaemia, caused by mutations of de...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2008.07290.x
更新日期:2008-10-01 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::Bone marrow blast cells of 174 child and 188 adult patients with AML were examined and characterized in terms of their FAB type, immunological phenotype (102 children, 123 adults) and karyotype (69 children, 95 adults). The incidence of FAB variants of AML proved similar in children and adults. In patients under 15 an...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb06727.x
更新日期:1994-08-01 00:00:00
abstract::Two new glucose-6-phosphate dehydrogenase (G6PD, D-glucose 6-phosphate: NADP oxido reductase, E.C. 1.1.1.49) variants, designated G6PD Napoli and G6PD Ferrara II, are described in propositi from two unrelated families. Characterization side by side of the two variants according to W.H.O. recommendations reveals minor ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1981.tb02733.x
更新日期:1981-07-01 00:00:00
abstract::The prognostic significance of SOCS3 protein expression was determined in de novo follicular lymphomas (FL) with t(14;18) and bcl-2 overexpression. Presentation lymph nodes from 82 FL patients for whom clinical information was available were immunohistochemically segregated into SOCS3-positive (n = 42) or -negative (n...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2006.06248.x
更新日期:2006-10-01 00:00:00
abstract::During periods of immunosuppression, such as postallogeneic stem cell transplantation (SCT), patients are at significant risk for severe viral infections. Human adenovirus (HAdV) infection is a serious complication post-SCT, especially in children. Virus-specific T cells are essential for the clearance of HAdV, as ant...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2006.06108.x
更新日期:2006-07-01 00:00:00
abstract::Highly efficient systems remove toxic and pro-inflammatory haemoglobin (Hb) from the circulation and local sites of tissue damage. Macrophages are major Hb-clearing cells; CD163 was recently recognized as the specific haemoglobin-haptoglobin scavenger receptor (HSR). We show that dexamethasone strongly induced the spe...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03790.x
更新日期:2002-10-01 00:00:00
abstract::Investigations into the nature of the molecular interactions mediating the recognition of the haemopoietic progenitor cells by the haemopoietic stroma, indicate that ubiquitin mediates the binding between murine haemopoietic progenitors and the haemopoietic stroma. The adhesion of haemopoietic progenitors to anti-ubiq...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb03054.x
更新日期:1993-06-01 00:00:00
abstract::Human IgG monoclonal antibodies (mabs) against the Rh D antigen have considerable potential for the prophylaxis of haemolytic disease of the newborn. We have carried out in vitro testing for cross-reactions with tissue components by screening two such mabs against animal tissues and a wide panel of human organs from n...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb08287.x
更新日期:1993-02-01 00:00:00
abstract::The records of 637 patients with lymphoproliferative disorders and 346 patients with myeloproliferative disorders were retrospectively analysed for the presence of additional autoimmune derangements. The frequency of autoimmune perturbations in lymphoproliferative diseases (51 cases; 8.0%) was significantly higher tha...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1987.tb02333.x
更新日期:1987-10-01 00:00:00
abstract::Glanzmann's thrombasthenia (GT) results from a qualitative or quantitative defect of GPIIb-IIIa complexes (integrin alphaIIbbeta3). the fibrinogen receptor on platelets. This integrin plays a critical role in platelet aggregation. In this report we describe the molecular abnormalities of a patient with clinical and la...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00852.x
更新日期:1998-09-01 00:00:00
abstract::Thrombocytopenia is common (40-65%) and potentially serious in myelodysplastic syndromes (MDS). A systematic review was conducted to determine the safety and efficacy of adding a thrombopoietin-receptor (THPO-R) agonist to standard MDS treatment. MEDLINE, EMBASE and CENTRAL databases were searched. We included randomi...
journal_title:British journal of haematology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/bjh.13088
更新日期:2014-12-01 00:00:00
abstract::Human monocytes contain a series of alpha-naphthyl acetate (alpha NA) esterases which are not present in other blood cells and which can be specifically inhibited by bis(4-nitrophenyl)-phosphate (BNPP). This inhibitor is non-toxic at the concentration used and thus enabled studies on the possible significance of this ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1985.tb02886.x
更新日期:1985-12-01 00:00:00
abstract::The prognostic role of CD20 expression and Epstein-Barr virus (EBV) positivity in post-transplant lymphoproliferative disease (PTLD) after solid organ transplantation (SOT) in paediatric patients is poorly understood. We retrospectively examined the relationship of CD20 and EBV with the time interval from SOT to PTLD ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2010.08448.x
更新日期:2011-03-01 00:00:00
abstract::Four unrelated patients with a bleeding diathesis (bleeding time longer than 30 min), some spontaneous platelet aggregation, thrombocytopenia and large platelets, had decreased levels of factor VIII-von Willebrand factor (FVIII-VWF) related properties and impaired platelet adherence to human artery subendothelium. The...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1985.tb07333.x
更新日期:1985-03-01 00:00:00
abstract::Ph-negative chronic myeloproliferative disorders (CMPD) are characterized by constitutive Janus kinase-signal transducer and activator of transcription (JAK-STAT) activation. SOCS3, SOCS1 and PTPN6 (SHP1) are negative regulators of the JAK-STAT pathway. We investigated epigenetic and genetic inactivation of SOCS3, SOC...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2008.07072.x
更新日期:2008-05-01 00:00:00
abstract::This case study provides evidence for clonal evolution in pre-B-cell leukaemia. At diagnosis, the lymphoblasts from a 3-year-old boy were morphologically subtyped as L1 (French-American-British classification). Their immunophenotype was CALLA+, CIgM+, SIg-, TdT+, and the karyotype was pseudodiploid with a 1;19 translo...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1984.tb03971.x
更新日期:1984-03-01 00:00:00