Abstract:
:The FAB classification of myelodysplastic syndromes (MDS) has been useful in predicting prognosis; however, additional methods are required to detect patients at high risk for early conversion to acute nonlymphoblastic leukemia (ANLL). Using a panel of monoclonal antibodies to myelomonocytic surface antigens (MMSA) and flow cytometry, we studied bone marrow cells from 26 patients with MDS of all five FAB subtypes. The MMSA studied included Ia (HLA-DR), CD11b (Mo1), CD14 (Mo2, My4), CD13 (My7), and CD33 (My9). Marrows were considered "positive" for a given MMSA if the percentage of reactive cells exceeded the upper limit of the normal range. Twenty-four of twenty-six patients (92.3%) were CD13 (My7)+, suggesting that CD13 may serve as a diagnostic marker for MDS. Ten of twelve patients who developed ANLL during a median follow-up of 44 weeks were Ia(HLA-DR)+. The Kaplan-Meier estimated median time to leukemia (TTL) was 16 weeks for Ia+ patients and 88 weeks for Ia- patients (P = 0.004). All six patients who developed ANLL before 16 weeks from diagnosis were Ia+, while none of the Ia- patients converted to ANLL before 24 weeks. Nine of thirteen patients with low CD11b (Mo1) expression (< 53% reactive cells) developed ANLL, compared with only two of 11 patients with high CD11b expression (> 53% reactive cells). Kaplan-Meier estimated TTL was 29 weeks for patients with low CD11b, compared to 160 weeks for patients with high CD11b (P < 0.05). Patients who met both criteria, Ia+ and low CD11b, represented the poorest prognostic subgroup, with median TTL of 13 weeks compared with 88 weeks for the others (P = 0.017). Ia and CD11b patterns were not specific for MDS subtype, and their expression did not correlate with blast count. These data suggest that MDS patients whose bone marrow cells demonstrate high Ia (HLA-DR) and low CD11b (Mo1) expression represent a poor prognostic subgroup with short TTL. These patients may be candidates for early aggressive or investigational treatment.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Mittelman M,Karcher DS,Kammerman LA,Lessin LSdoi
10.1002/ajh.2830430302subject
Has Abstractpub_date
1993-07-01 00:00:00pages
165-71issue
3eissn
0361-8609issn
1096-8652journal_volume
43pub_type
杂志文章,评审abstract::Polycythemia vera (PV) is a myeloproliferative disorder characterized by thrombotic and, less often, bleeding complications. Many mechanisms have been advanced to explain the occurrence of these complications, none of them satisfactory. We examined a cohort of 27 patients with PV, secondary erythrocytosis, and essenti...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199903)60:3<196::aid-ajh5>
更新日期:1999-03-01 00:00:00
abstract::The erythrocytes of 90 pregnant women were evaluated for the presence of in vivo or in vitro oxidant damage. The reduced glutathione (P less than 0.005) and the membrane reduced sulfhydryl (P less than 0.001) concentrations were decreased in fresh erythrocytes. Following incubation with acetylphenylhydrazine, Heinz bo...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830180204
更新日期:1985-02-01 00:00:00
abstract::Secondary acute myeloid leukemia (sAML) traditionally has inferior outcomes compared to de novo AML. Allogeneic hematopoietic cell transplantation (HCT) is the sole potentially curative therapy. This study analyzes the outcomes for unmanipulated haploidentical HCT (haploHCT) for sAML using the Acute Leukemia Working P...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25087
更新日期:2018-06-01 00:00:00
abstract::We report a case of refractory anemia with excess blasts (RAEB) developing in a 67-year old man with a history of polycythemia vera; results of cytogenetic and immunophenotyping studies are described. In this report the clinical, cytogenetic and hematologic features of myelodysplasia complicating polycythemia vera are...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830370110
更新日期:1991-05-01 00:00:00
abstract::We aimed to comprehensively study sex differences in disease and patients' characteristics, treatment and outcomes in patients with follicular lymphoma (FL) in the United States (USA) utilizing the National LymphoCare Study registry (2004-2014). Among evaluable males (n = 1277) and females (n = 1375) with FL, females ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24401
更新日期:2016-08-01 00:00:00
abstract::The requirements for factor VIII (AHF) or factor IX (PTC) of hemophilic patients undergoing dental extractions were evaluated to determine the minimum effective regimen. Sixteen patients underwent 19 operative procedures. The mean total dose of factor VIII or IX was 45.8 U/kg for 11 procedures with preoperative replac...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830160102
更新日期:1984-01-01 00:00:00
abstract::Seven normal human peripheral blood cell fractions (buffy coat, mononuclear cells, non-T, T, Fc-IgM receptor-depleted T-lymphocyte, Fc-IgG receptor-depleted T-lymphocyte, and autologous rosette-forming T-cell-depleted T-lymphocyte subpopulations) treated with phytohemagglutinin (PHA) were examined for the production o...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200306
更新日期:1985-11-01 00:00:00
abstract::A 77-year-old man with relapsed non-Hodgkin's lymphoma, diffuse large B-cell type, was treated with naproxen, a nonsteroidal anti-inflammatory drug (NSAID), for paraneoplastic fever. A dramatic disappearance of not only the fever but also generalized lymphadenopathy was observed. Naproxen was continued, and he maintai...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/1096-8652(200103)66:3<220::aid-ajh1048>3.0
更新日期:2001-03-01 00:00:00
abstract::Progressive multifocal leukoencephalopathy (PML), a demyelinating infectious disease caused by JC virus (JCV), occurs almost exclusively in immunocompromised patients usually with malignant diseases. We report here a Japanese female with follicular lymphoma who subsequently developed PML. In addition to JCV, human her...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.1108
更新日期:2001-07-01 00:00:00
abstract::Recent observations that the sickle RBC are excessively susceptible to phagocytosis by macrophages in vitro prompted me to look for evidence of in vivo erythrophagocytosis (Ep) in patients with sickle cell anemia (SS). Freshly prepared smears of unmanipulated blood of 27 patients with SS in steady state were examined ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200406
更新日期:1985-12-01 00:00:00
abstract::The role of leukapheresis was explored in the management of anaemia and thrombocytopenia complicating the accumulation of lymphoid cells in patients with chronic lymphocytic leukaemia and lymphoma. The aim of this study was to determine the efficiency of this procedure in correcting these complicating features and to ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830060411
更新日期:1979-01-01 00:00:00
abstract::The incidence of multiple myeloma (MM) is known to be variable according to ethnicity. However, the differences in clinical characteristics between ethnic groups are not well-defined. In Asian countries, although the incidence of MM has been lower than that of Western countries, there is growing evidence that MM is in...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.23731
更新日期:2014-07-01 00:00:00
abstract::Leukemic cells of 43 patients with acute promyelocytic leukemia (M3) were investigated morphologically and cytochemically to determine the percentage of aberrant enzymes and whether or not the presence impacts on the clinical outcome. Twelve patients (27.9%) showed alpha-naphthyl acetate esterase (ANAE) activity in th...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830290306
更新日期:1988-11-01 00:00:00
abstract::A case of a leukemic transformation following a 27-year history of idiopathic myelofibrosis (IMF) is presented. The patient had two chromosomal abnormalities: a deletion of chromosome 13, del 13(q12q14), and a deletion of chromosome 11, del 11(q14q23). This patient's final diagnosis was acute micromegakaryocytic leuke...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20254
更新日期:2005-01-01 00:00:00
abstract::We report a patient with incapacitating POEMS syndrome characterized by serum monoclonal protein, polyneuropathy, organomegaly, endocrinopathy, mesangiocapillary glomerulonephritis, massive ascites formation, and pulmonary hypertension. A dramatic improvement in the clinical condition occurred after administration of ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20051
更新日期:2004-05-01 00:00:00
abstract::We studied levels of plasma endothelin-1 (ET-1) in 25 beta-thalassemia/Hb E patients before and after blood transfusion. Baseline ET-1 levels in these patients were significantly higher than in normal controls (10.17 +/- 2.1 pg/mL vs. 8.9 +/- 2.0 pg/mL, P < 0.05). After blood transfusion, levels of plasma ET-1 tend to...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10129
更新日期:2002-07-01 00:00:00
abstract::Recent literature has demonstrated concern over the risk of Pneumocystis jirovecii pneumonia (PJP) when administering rituximab with combination chemotherapy such as in R-CHOP; however, the exact risk and potential need for prophylaxis is unknown. We sought to determine the incidence of PJP infection following R-CHOP ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24499
更新日期:2016-11-01 00:00:00
abstract::The goal of the present study was to search for criteria that allow one to distinguish between normal individuals and heterozygotes as well as compound heterozygotes for pyruvate kinase (PK) deficiency. As the residual activity of PK with heterozygotes was between 35% and 110% of the normal activity, it was necessary ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830310402
更新日期:1989-08-01 00:00:00
abstract::Hb Knossos is a beta-chain variant (beta 27 Ser----Ala) that is unrecognizable by conventional separation methods but detectable by globin electrophoresis on urea-Triton X-acrylamide gels or by IEF. Hb Knossos is characterized by reduced synthesis and by interaction with beta-thalassemia, in which the double heterozyg...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830210202
更新日期:1986-02-01 00:00:00
abstract::Agnogenic myeloid metaplasia (AMM) is a chronic myeloproliferative disorder arising from a single hematopoietic cell. Approximately 5% of reported cases of AMM have terminated in leukemic crisis; however, the precise characteristics of the leukemic cells have rarely been reported. We report a case of AMM that occurred...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830440111
更新日期:1993-09-01 00:00:00
abstract::Compared to age-matched controls, cancer patients have increased risk of bleeding when treated with anticoagulation. However, there are little data regarding bleeding as it relates to anticoagulant choice and other risk factors. We evaluated the six-month incidence of bleeding among patients treated with anticoagulati...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25494
更新日期:2019-07-01 00:00:00
abstract::We studied red blood cell morphology in two marathon runners before, immediately after, and 1 day after a marathon race. A discocyte-stomatocyte transformation was found by light microscopy of wet preparations and also by scanning electron microscopy, with about one-half the erythrocytes becoming cup-shaped after the ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830190213
更新日期:1985-06-01 00:00:00
abstract::Micro-transplantation (MST) by chemotherapy, combined with granulocyte colony-stimulating factor-mobilized peripheral blood stem cell (GPBSC) infusion, from an HLA partial matched related donor has shown some encouraging effective therapy for acute myeloid leukemia (AML). However, the outcome of human leukocyte antige...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1002/ajh.25780
更新日期:2020-06-01 00:00:00
abstract::Prenatal diagnosis was carried out on a woman who had previously given birth to a son with a spontaneous mutation of C-->T transition at nt 31133 of the factor IX (F.IX) gene. The diagnosis was performed on chorionic villi sampling by the method of amplification-created restriction site (ACRS). It revealed a female fe...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199608)52:4<243::AID-AJH1>
更新日期:1996-08-01 00:00:00
abstract::Sickle cell disease (SCD) nephropathy and lower estimated glomerular filtration rate (eGFR) are risk factors for early mortality. Furthermore, rate of eGFR decline predicts progression to end-stage renal disease in many clinical settings. However, factors predicting renal function decline in SCD are poorly documented....
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25263
更新日期:2018-12-01 00:00:00
abstract::Iron deposition in combination with inflammatory and immunogenetic factors is involved in the pathophysiology of cardiac dysfunction in β-thalassemia major. We investigated the mechanical and endocrine function of the left atrium and ventricle to identify early signs of dysfunction. We studied 90 patients (mean age: 2...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.23581
更新日期:2014-01-01 00:00:00
abstract::We describe two patients with mild hemophilia A (MHA) who developed high titer inhibitor (HTI) following intensive recombinant factor VIII (rFVIII) concentrate replacement for surgery and trauma. Intranasal desmopressin was instituted shortly following immunosuppressive therapy (IST) and activated prothrombin complex ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.1176
更新日期:2001-11-01 00:00:00
abstract::Little is known about the mechanisms explaining the wide variation in platelet counts (PLT) and other hematologic parameters in humans. We previously showed that the sex-based difference in hematocrit was associated with nucleotide variation in the erythropoietin receptor gene (EPOR). We sought to identify new polymor...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20095
更新日期:2004-09-01 00:00:00
abstract::The improved microchromatographic procedure for the detection of Hb-S and/or Hb-C in cord blood at birth (Schroeder et al.: J. Lab Clin Med 86:528-532, 1975) as well as a modification thereof may also be used for the quantitative determination of Hb-F in the presence of Hb-S and/or Hb-C. However, Hb-A interferes and m...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830010308
更新日期:1976-01-01 00:00:00
abstract::Defective fibrinolysis due to decreased tissue-type plasminogen activator (t-PA) activity is a well-established finding in patients with systemic lupus erythematosus (SLE). The possibility that this decrease in t-PA activity may be related to the presence of autoantibodies directed against t-PA, and the possible role ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830490203
更新日期:1995-06-01 00:00:00