Abstract:
:We describe and compare five assay systems for Protein C (PC) in human plasma; a functional assay for PC activity, Laurell electroimmunoassay with EDTA or calcium (EDTA-Laurell or Ca-Laurell), radioimmunoassay (RIA) and immunoradiometric assay (IRMA). The lower limit of sensitivity of PC in normal reference plasma was 2 X 10(-3) units/ml by RIA and 1 X 10(-4) units/ml by IRMA, but the ratio of maximum binding to blank binding was superior in RIA. In normal plasma (n = 20), there was no significant discrepancy of PC levels between RIA, Laurell (EDTA- and Ca-) and functional assay. In normal serum, PC antigen (PC:AG) measured by Ca-Laurell showed a high value (1.37 +/- 0.24 units/ml) compared to the other assays. PC:AG of a purified sample increased its level by Ca-Laurell method during activation by thrombin. Activated PC (PCa) has decreased affinity for anti-PC rabbit IgG, similarly to decarboxy (warfarinized) PC. In warfarin-treated individuals (n = 12) who were anticoagulated orally for more than 3 weeks, functional activity was lower (0.27 +/- 0.12 units/ml) than that measured by RIA (0.64 +/- 0.12 units/ml) or EDTA-Laurell (0.62 +/- 0.06 units/ml), whereas PC:AG measured by CA-Laurell had a normal value of 0.96 +/- 0.40 units/ml. After stopping administration, the activity showed a gradual increase to the normal at 2 weeks, while PC:AG increased more rapidly to normalize in 1 week.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Mikami S,Tuddenham EGdoi
10.1111/j.1365-2141.1986.tb02915.xsubject
Has Abstractpub_date
1986-01-01 00:00:00pages
183-93issue
1eissn
0007-1048issn
1365-2141journal_volume
62pub_type
杂志文章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::Enlarged lymph nodes may be a marker of occult cancer, but accurate data on cancer risk are limited. We used population-based Danish medical registries to assess cancer risk in a cohort of patients with a first-time inpatient or outpatient hospital contact for enlarged lymph nodes during 1994-2008. Observed cancer inc...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12174
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abstract::Besides circulating in normal plasma, von Willebrand factor (VWF) is also stored at relatively high concentration within the alpha-granules of platelets. This pool of platelet VWF exists distinct from plasma VWF, and is enriched in haemostatically-active high molecular weight multimers. Interestingly, the glycosylatio...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2009.08052.x
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abstract::Thrombosis occurs in 37% of children with acute lymphoblastic leukaemia (ALL) and is related to an L-asparaginase-induced acquired antithrombin (AT) deficiency. The incidence dictates the need for anticoagulant prophylaxis. Direct thrombin inhibitors (DTI) are independent of AT for effect and may thus have advantages ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2006.06209.x
更新日期:2006-09-01 00:00:00
abstract::This study shows a marked and protracted activation of HbF synthesis in homozygous beta.-thalassaemia patients transplanted from HLA identical siblings heterozygous for beta-thalassaemia, as compared to patients transplanted from normal donors. HbF synthesis in recipients was much higher in relation to the correspondi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb04324.x
更新日期:1989-08-01 00:00:00
abstract::The capacity of alpha-interferon (alpha-IFN) to induce lymphokine activated killer (LAK) cytotoxicity in the absence of interleukin-2 (IL2) has prompted us to test whether or not its ability to reduce dramatically the number of Ph1+ clones in chronic myelogenous leukaemia (CML) patients is in part mediated through the...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb08275.x
更新日期:1993-02-01 00:00:00
abstract::We report the cytogenetic findings on 31 cases of splenic lymphoma with villous lymphocytes (SLVL). TPA stimulated cells from peripheral blood (28 cases), spleen (two cases) and lymph node (one case) with SLVL have been analysed. A clonal chromosome abnormality was found in 27/31 patients (87%); this was identified as...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb03337.x
更新日期:1993-11-01 00:00:00
abstract::Patients with multiple myeloma (MM) undergoing high dose therapy and autologous stem cell transplantation (SCT) remain at risk for disease progression. Induction of the expression of highly immunogenic cancer testis antigens (CTA) in malignant plasma cells in MM patients may trigger a protective immune response follow...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2012.09225.x
更新日期:2012-09-01 00:00:00
abstract::The Kidd (JK) blood group system is of importance in transfusion medicine. The Jk(null) phenotype is associated with absence of the urea transporter in erythrocytes and moderately reduced ability to concentrate urine. We and others recently reported different molecular alterations in the silenced Jkb-like alleles of P...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03238.x
更新日期:2002-02-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1983.tb02053.x
更新日期:1983-03-01 00:00:00
abstract::Due to the development of neurological toxicity and resistance to methotrexate (MTX), other antifolates have been evaluated for its potential replacement in the treatment of childhood acute lymphoblastic leukaemia (ALL). Aminopterin (AMT) has been suggested to provide clinical advantages over MTX and other antifolates...
journal_title:British journal of haematology
pub_type: 杂志文章
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更新日期:2009-05-01 00:00:00
abstract::The impact of age upon therapeutic response to unfractionated heparin (UFH) in children is proposed to reflect quantitative and potentially qualitative differences in coagulation proteins across childhood. This study explores the UFH-dependent tissue factor pathway inhibitor (TFPI) release in children compared to prev...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2010.08373.x
更新日期:2010-11-01 00:00:00
abstract::It has been suggested that the iron storage protein ferritin has a number of physiological functions not directly related to iron metabolism and a number of these relate to lymphocyte and macrophage activity. The present study demonstrates a selective distribution of ferritin on lymphocyte and macrophage surface membr...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract::Highly purified and cloned preparations of interleukin-1 (IL-1) were found to antagonize the capacity of erythropoietin (Epo) to stimulate the proliferation of mouse spleen and bone marrow erythroid precursor cells (EPC) in culture. Cloned murine IL-1 and purified and cloned human IL-1 alpha and IL-1 beta were approxi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1987.tb02289.x
更新日期:1987-09-01 00:00:00
abstract::The level of minimal residual disease (MRD) in marrow early in treatment strongly predicts outcome in childhood acute lymphoblastic leukaemia (ALL). Using PCR we studied 30 pairs of aspirates and trephines taken during induction treatment. Consensus PCR primers showed a monoclonal gene rearrangement in eight pairs, po...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1998-10-01 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::In this population-based survey covering two geographically distinct UK regions, we evaluated the number of myeloma patients aged < or =65 years who have not undergone transplantation. The combined data from both of these regions showed that 57% of age-eligible patients were not transplanted. While early death and com...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.05340.x
更新日期:2005-02-01 00:00:00
abstract::Neutrophil hypersegmentation (NH) is an important haematological feature of cobalamin or folate deficiency. As iron deficiency and folate deficiency often occur in the same target groups it is important to establish whether iron deficiency alone is a cause of NH. We report a case-control study which addresses this iss...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01756.x
更新日期:1999-12-01 00:00:00
abstract::Mutations in SOCS1 are frequent in primary mediastinal B-cell lymphoma and classical Hodgkin lymphoma. In the latter, SOCS1 mutations affect the length of the encoded protein (major mutations) and are associated with shorter patient survival. Two independent studies examined the prognostic impact of SOCS1 mutations in...
journal_title:British journal of haematology
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doi:10.1111/j.1365-2141.2009.07692.x
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abstract::Cross-species Northern blot hybridization and radioimmunoassay have provided evidence for the expression of an erythropoietin (EPO)-like gene in the rainbow trout. The principal site of EPO-like mRNA and antigen expression in the adult trout appears to be the kidney which also acts as the major erythropoietic organ. T...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb03406.x
更新日期:1995-05-01 00:00:00
abstract::Factor VIII (FVIII) inhibitors appear in 3-20% of haemophilia A patients after injection of FVIII concentrates. However, autoantibodies to FVIII are also reported in non-haemophiliacs. In these patients FVIII inhibitor disappears spontaneously or diminishes in response to immunosuppressive therapy. However, a few pati...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01220.x
更新日期:1999-03-01 00:00:00
abstract::The effects of oral contraceptive (OC) usage on platelet responsiveness to arachidonic acid metabolites was investigated. Platelets obtained from women who had been taking oral contraceptives for at least 3 months were compared with those of age-matched controls. Both the basal and prostacyclin (PGI2)-stimulated plate...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1984.tb06090.x
更新日期:1984-10-01 00:00:00
abstract::Two new variants of erythrocytic glucose-6-phosphate dehydrogenase have been found in one German patient and in another patient of Turkish origin. The enzymes were partially purified 165-fold and 111-fold respectively. Both revealed reduced activity, increased thermolability and a pH-optimum in the alkaline region (8....
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1976.tb03552.x
更新日期:1976-07-01 00:00:00
abstract::Haematological characteristics have been compared in 29 subjects with heterozygous beta0 thalassaemia and in 33 subjects with heterozygous beta+ thalassaemia, identified by the type of sickle cell-beta thalassaemia among close relatives, in a Jamaican Negro population. Total haemoglobin, MCV and MCH were significantly...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1977.tb00636.x
更新日期:1977-06-01 00:00:00
abstract::Serum erythropoietin (Epo) was measured in 23 patients before, during and after intensive cytostatic treatment courses for acute leukaemia or before bone marrow transplantation. A marked increase was seen in all patients, starting 1 or 2 d after initiation of treatment. A peak was reached after about 7 d, at levels as...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb07733.x
更新日期:1989-07-01 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
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更新日期:2012-09-01 00:00:00
abstract::A number of disorders cause iron overload: some are of genetic origin, such as hereditary haemochromatosis, while others are acquired, for instance due to repeated transfusions. This article reviews the treatment options for hereditary haemochromatosis, with special attention to the use of erythrocytapheresis. In gene...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.14376
更新日期:2016-12-01 00:00:00
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2009.08062.x
更新日期:2010-04-01 00:00:00
abstract::Human intravenous immunoglobulin (IVIg) and anti-D immunoglobulin preparations are used in the treatment of immune thrombocytopenic purpura (ITP). One mechanism proposed to explain their therapeutic effects in ITP patients is the induction of expression of anti-inflammatory cytokines, such as interleukin (IL)-10 or IL...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2007.06495.x
更新日期:2007-03-01 00:00:00