Abstract:
:A multicentre modified World Health Organization (WHO)-type international sensitivity index (ISI) calibration has been performed at 10 European Concerted Action on Anticoagulation (ECAA) national laboratories using non-citrated whole-blood on two point-of-care test (POCT) prothrombin time (PT) monitor systems, CoaguChek Mini and TAS PT-NC, using single lots of test cards/strips. The relevant species (human and rabbit) WHO international reference preparations (IRPs) were tested with the manual PT technique on citrated plasma from the same blood donations. The ISI was calculated from the slope of the orthogonal regression line relating log PT (POCT) to log PT (IRP). The mean ISI of the CoaguChek Mini system was 1.75 and 1.13 with the prothrombin time non-citrated Thrombolytic Assessment System (TAS PT-NC). With the CoaguChek Mini system, seven out of 10 calibrations exceeded the current 3% WHO recommended limit for the coefficient of variation (CV) of the slope with conventional PT testing, whereas with the TAS PT-NC system, it was eight out of 10. All the POCT calibrations had a CV of the slope <5%. It is suggested that this level of precision be adopted as the limit of acceptability of calibration of these monitor systems. In these circumstances, the modified WHO-type ISI calibration appeared to be satisfactory for the POCT whole-blood monitors.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Poller L,Keown M,Chauhan N,van Den Besselaar AM,Tripodi A,Jespersen J,Shiach C,Horellou MH,Dias D,Egberg N,Iriarte JA,Kontopoulou-Griva I,Otridge Bdoi
10.1046/j.0007-1048.2002.03361.xsubject
Has Abstractpub_date
2002-03-01 00:00:00pages
844-50issue
4eissn
0007-1048issn
1365-2141pii
3361journal_volume
116pub_type
杂志文章,多中心研究abstract::Cytogenetic deletions of the short arm of chromosome 12 are common recurring alterations found in a wide range of haematological neoplasias, including childhood acute lymphoblastic leukaemia (ALL), the most frequent paediatric malignancy. Such a loss of genetic material suggests the presence of a tumour suppressor gen...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1997.3663180.x
更新日期:1997-10-01 00:00:00
abstract::High-dose dexamethasone (HD-Dex) has been reported to benefit AL amyloidosis patients with varying response rates. Our preliminary experience with the usual HD-Dex schedule indicated that the induction phase was rather toxic in AL patients. We therefore adopted a milder schedule consisting of dexamethasone 40 mg on d ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02859.x
更新日期:2001-06-01 00:00:00
abstract::We studied the trends of the Epstein-Barr virus (EBV) positivity rate in Hodgkin's disease (HD) between 1955 and 1999. The overall positivity rate gradually decreased over time [12 out of 23 (52%) in 1955-69; 18 out of 39 (46%) in 1970-84; 13 out of 44 (35%) in 1985-99; P = 0.135]. Interestingly, a marked decrease in ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02767.x
更新日期:2001-05-01 00:00:00
abstract::The levels of soluble CD9 antigen released into spent medium from bone marrow (BM) cells were assayed using a unique enzyme-linked immunosorbent assay. We demonstrated that a considerable amount of soluble CD9 antigen was consistently detected in the spent medium from CD9+ leukaemic blasts, but little from normal or r...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb02986.x
更新日期:1992-08-01 00:00:00
abstract::A stroma free platelet lysate supernatant (PLS) was prepared by repeatedly freezing and thawing a human platelet suspension separated from platelet rich plasma by gel filtration. The material was potently thrombogenic in a stasis model in rabbits, but only when combined with a purified preparation of factor Xa. The do...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1982.tb02803.x
更新日期:1982-07-01 00:00:00
abstract::We report on the generation and functional characterization of a humanized immunoenzyme comprising a stable humanized single chain Fv (scFv) with grafted specificity of the anti-CD22 murine monoclonal antibody RFB4 and the human ribonuclease angiogenin (ANG). The fusion protein produced from transiently transfected ma...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05356.x
更新日期:2005-03-01 00:00:00
abstract::There is limited information concerning the impact of physical activity and obesity on non-Hodgkin lymphoma (NHL) prognosis. We examined the associations between pre-diagnosis physical activity and body mass index (BMI) with survival in 238 diffuse large B-cell (DLBCL) and 175 follicular lymphoma cases, with follow-up...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.14702
更新日期:2017-08-01 00:00:00
abstract::The platelet-sized particle formation in the human megakaryoblastic leukaemia cell line MEG-01 and its subline MEG-01s was examined. MEG-01 and MEG-01s cells spontaneously released platelet-sized particles into the culture medium, in which the cells occasionally extended cytoplasmic processes similar to those of megak...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00576.x
更新日期:1998-02-01 00:00:00
abstract::Multiple myeloma (MM) is a plasma cell malignancy that claims thousands of lives each year and has considerable morbidity. The disease remains incurable despite recent advances in the understanding of the disease biology and the introduction of more effective drugs is needed. This study evaluated the anti-MM activity ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05946.x
更新日期:2006-03-01 00:00:00
abstract::The primary immune response to a viral antigen (tick-borne encephalitis, TBE) has been determined in haemophiliacs. Twelve HIV-negative and four clinically asymptomatic, HIV-positive haemophiliacs as well as 16 age-matched healthy controls were included in the study. Antibody responses after TBE vaccination were compa...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb06432.x
更新日期:1992-10-01 00:00:00
abstract::Dogs affected with cyclic haematopoiesis (CH) and experiencing recurrent 12-day cycles of neutropenia were supralethally irradiated and transplanted with marrow from their normal littermates. Following transplantation of the normal marrow, dogs with CH experienced no further cycles of neutropenia. Platelet and reticul...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1975.tb00535.x
更新日期:1975-06-01 00:00:00
abstract::We previously demonstrated that multitransfused patients with severe aplastic anaemia (SAA) exhibit high numbers of alloreactive cytotoxic T lymphocyte precursors directed against their HLA identical siblings. In this study a group of patients who had received multiple blood transfusions for SAA, other haematological ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb08165.x
更新日期:1992-05-01 00:00:00
abstract::Many adult T-cell leukaemia/lymphoma (ATLL) patients who respond to induction treatment, then relapse. Knowing the clonality pattern of residual tumourous clones during treatment could help understand disease evolution and aid therapeutic decisions. We developed a sensitive and semi-quantitative molecular analysis of ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01389.x
更新日期:1999-06-01 00:00:00
abstract::Point-of-care testing (POCT) in haematology has continued to grow in popularity and uptake throughout the world. The increasing demand to reduce the turnaround time of test results, coupled with rapid improvements in technology, have led to the development of several devices that are designed for use in different clin...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2012.09207.x
更新日期:2012-09-01 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::Globin synthesis was studied in four Negro families including 10 members with Hb A-HPFH and four with Hb S-HPFH. The beta/alpha specific activity ratios in 10 of these HPFH heterozygotes were similar to those of the control group. In two patients with Hb A-HPFH, the beta/alpha ratio was slightly decreased in one (0.84...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1976.tb00939.x
更新日期:1976-03-01 00:00:00
abstract::It has been suggested that in blast crisis (BC) of chronic myeloid leukaemia (CML) the clinical and laboratory features of patients with 'lymphoid' phenotype differ from those of patients with non-lymphoid BC. In order to assess any differences, 97 patients consecutively diagnosed with BC that followed a known chronic...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00542.x
更新日期:1998-01-01 00:00:00
abstract::Sources for allogeneic stem cells for patients with haematological disorders lacking a histocompatible sibling donor include matched unrelated donor (MUD) and umbilical cord blood (UCB). A total of 51 patients with haematological disorders, treated with myeloablation and transplantation with either unrelated human leu...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04792.x
更新日期:2004-02-01 00:00:00
abstract::The chemotaxis of human malignant plasma cells is promoted by two extracellular matrix proteins (ECMs): fibronectin (FN) and laminin (LN). We examined the effect of the supernatant from a bone marrow stroma cell line, KM-101, on the chemotaxis of human malignant plasma cell lines to assess the chemotaxis-regulatory ro...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1996.d01-1691.x
更新日期:1996-06-01 00:00:00
abstract::Myelofibrosis is characterized by splenomegaly and debilitating constitutional symptoms that negatively impact patients' quality of life. ROBUST, a UK, open-label, phase II study, evaluated the safety and efficacy of ruxolitinib in patients with myelofibrosis (N = 48), including intermediate-1 risk patients. The prima...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.13379
更新日期:2015-07-01 00:00:00
abstract::We report a patient with uterine myoma (leiomyoma) and erythrocytosis in whom erythropoietin (Epo) production in the leiomyoma tissue was identified by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). A 48-year-old Japanese woman with uterine myoma showed marked e...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02682.x
更新日期:2001-04-01 00:00:00
abstract::We describe eight patients (four children and four adults) with an acute lymphoblastic leukaemia (ALL) with cytoplasmic granules or inclusions. The incidence of this variant of acute leukaemia in our whole series of patients with ALL is 1.8%. The granules or inclusions were usually positive for aspecific esterases (AN...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb07745.x
更新日期:1989-11-01 00:00:00
abstract::The in vitro efficacies of three new drugs--clofarabine (CLOF), nelarabine (NEL) and flavopiridol (FP) - were assessed in a panel of acute lymphoblastic leukaemia (ALL) cell lines. The 50% inhibitory concentration (IC50) for CLOF across all lines was 188-fold lower than that of NEL. B-lineage, but not T-lineage lines,...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2007.06527.x
更新日期:2007-04-01 00:00:00
abstract::Heparin-induced thrombocytopenia (HIT) is mediated by a heparin-dependent antibody/platelet factor 4/heparin complex binding to platelets via the Fc gamma receptor (type IIA). A single base polymorphism at position 131 of Fc gamma RIIA changes the native arginine to histidine. In the presence of murine monoclonal IgG1...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb05383.x
更新日期:1995-11-01 00:00:00
abstract::The availability of a preparation of recombinant human erythropoietin (rEp) prompted us to investigate the role of Ep in the regulation of megakaryocytopoiesis in mice, using experimental procedures by which the effects on the mitotic and post-mitotic compartment of megakaryocytes could be evaluated separately. In aga...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb06303.x
更新日期:1989-04-01 00:00:00
abstract::The granulocytes of 23 patients with chronic granulocytic leukaemia were examined in the indirect immunofluorescence test and some also in the microleucoagglutination test, with specific alloantisera against the NA1, NA2, NB1 and ND1 antigens and a specific granulocyte xenoantiserum. In 10 cases a complete loss of all...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1979.tb03791.x
更新日期:1979-12-01 00:00:00
abstract::We investigated the molecular basis for haemoglobin H disease in 50 Sardinian patients by restriction endonuclease analysis. We found that the majority (78% of the cases) are due to gene deletion (- -/- alpha). Among those with a combination of deletion and nondeletion defects (- -/alpha alpha th), the most prevalent ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1986.tb07525.x
更新日期:1986-07-01 00:00:00
abstract::A simple rapid platelet aggregation test was used to evaluate cross-reactivity of four low molecular weight heparins and the heparinoid ORG 10172 in three patients with heparin-induced thrombocytopenia. The low molecular weight heparins cross-reacted in 11 out of 12 tests. The heparinoid ORG 10172 did not cross-react ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb04760.x
更新日期:1994-02-01 00:00:00
abstract::Myeloid neoplasms derive from the pathological clonal expansion of an abnormal stem cell and span a diverse spectrum of phenotypes including acute myeloid leukaemia (AML), myeloproliferative neoplasms (MPN) and myelodysplastic syndromes (MDS). Expansion of myeloid blasts with suppression of normal haematopoiesis is th...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2010.08525.x
更新日期:2011-03-01 00:00:00
abstract::Fibroblast-like cells may be grown from human bone marrow. Adherent cultures show a logarithmic phase of growth lasting 6 d. Hydrocortisone (1 x 10(-8) M) decreases cell growth in 40-60% when measured as cell number and DNA synthesis. Fibroblasts bind the hormone by a high affinity, saturable process showing a Kd of 2...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1982.tb03893.x
更新日期:1982-10-01 00:00:00