Abstract:
:CD7 antigen, a T-cell lineage associated antigen, is expressed in a minority of patients with acute myeloid leukemia (AML). The biologic and clinical significance of this finding is not clearly established. In this retrospective study of patients with de novo acute myeloid leukemia, we have identified CD7 expression and analyzed its association with markers expressed early in hemopoietic ontogeny and clinical parameters. Among 60 consecutive AML patients, we found six (10%) expressing CD7 on leukemic cells. There were five males and one female and the mean age was 59.6 years (age range: 32-76 years) with no demographic peculiarities. The FAB subtypes were: M0 (2), M1 (1), M2 (1), and M4 (2). CD7 expression was associated with immature antigens CD34, HLA-DR, and terminal deoxynucleotidyl transferase (TdT) and antigen receptor gene rearrangements (rearrangements of T-cell receptor gamma chain in 6/6 and immunoglobulin heavy chain in 2/6). Hepatomegaly was present in three and this was associated with splenomegaly with lymphadenopathy in one patient. Mediastinal or central nervous system involvement was absent. Complete remission was achieved in two patients with standard chemotherapy; one of these is in remission and alive (5 years later), while one died following relapse 9 months later. Three patients had significantly lower response to standard therapeutic regimen (two died during induction and one died 7 months later without ever achieving complete remission). One patient has been excluded in determining the prognostic significance of CD7 due to early death. Our results suggest origin of CD7+ AML from early hemopoietic precursors and indicate biologic aggressiveness in a significant proportion of patients. We suggest evaluation of CD7 in all patients with AML at the time of diagnosis in view of poor clinical outcome.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Saxena A,Sheridan DP,Card RT,McPeek AM,Mewdell CC,Skinnider LFdoi
10.1002/(sici)1096-8652(199808)58:4<278::aid-ajh5>subject
Has Abstractpub_date
1998-08-01 00:00:00pages
278-84issue
4eissn
0361-8609issn
1096-8652pii
10.1002/(SICI)1096-8652(199808)58:4<278::AID-AJH5>journal_volume
58pub_type
杂志文章abstract::FIP1L1-PDGFRA-positive myeloid neoplasm with eosinophilia (F/P+ MN-eo) is a rare disease: robust epidemiological data are lacking and reported issues are scarce, of low sample-size and limited follow-up. Imatinib mesylate (IM) is highly efficient but no predictive factor of relapse after discontinuation has yet been i...
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.25945
更新日期:2020-11-01 00:00:00
abstract::Disseminated intravascular coagulation (DIC) is a complex acquired coagulopathy resulting from excessive thrombin formation. Abnormal tissue factor (TF) expression is a major mechanism initiating DIC in many disorders, including obstetrical complications, sepsis, cancer, and trauma. Numerous laboratory tests are avail...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/(sici)1096-8652(199809)59:1<65::aid-ajh13>
更新日期:1998-09-01 00:00:00
abstract::Four men were diagnosed with human immunodeficiency virus infection (AIDS) and autoimmune hemolytic anemia (HIV-AIHA) during the years 1997-2000 at Cook County Hospital, Chicago. All patients presented with the acute onset of severe hemolytic anemia, fever, and splenomegaly. The direct and indirect antiglobulin tests ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10096
更新日期:2002-06-01 00:00:00
abstract::Solid-phase enzyme immunoassays using recombinant gag and env proteins were developed to study humoral immune responses to HIV infection in a cohort of 105 hemophiliac patients. Thirteen patients with ARC or AIDS and 92 asymptomatic patients were studied. A cross-sectional study showed a wide range of antibody respons...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830360108
更新日期:1991-01-01 00:00:00
abstract::A patient with chronic myelogenous leukemia (CML) had a Philadelphia chromosome (Ph') [t(9q+;22q-)] in all cells and trisomy C in 13% of cells (later determined to be trisomy 8) at the time of diagnosis. After 21 months of intermittent treatment with busulfan, the acute phase developed with the appearance of an additi...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830060208
更新日期:1979-01-01 00:00:00
abstract::Severe chronic neutropenia (SCN) is defined as an absolute neutrophil (ANC) of less than 0.5 x 10(9)/L, lasting for months or years. Congenital, cyclic, and idiopathic neutropenia are principal categories of SCN. Since 1994, the Severe Chronic Neutropenia International Registry (SCNIR) has collected data to monitor th...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.10255
更新日期:2003-02-01 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::Regulatory T-cells (Tregs) are increased in chronic lymphocytic leukemia(CLL) and correlates with clinical and biological features of active/progressive disease. However, little is known about their ability to predict the time to first treatment (TFT). We evaluated 75 patients with Rai stage 0 CLL, in whom the absolut...
journal_title:American journal of hematology
pub_type: 信件
doi:10.1002/ajh.23170
更新日期:2012-06-01 00:00:00
abstract::Expression of alkaline phosphatase (ALP) on the surface membrane of neutrophils (mNAP) was studied by immunofluorescence using an anti-ALP monoclonal antibody. Fluorescent intensity distribution of mNAP was analyzed using FACS (fluorescence-activated cell sorter). The mean fluorescent intensity (MFI) of the mNAP in th...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199901)60:1<12::aid-ajh3>3
更新日期:1999-01-01 00:00:00
abstract::CD19+CD5+ lymphocytes constitute a minority of peripheral blood B cells. In view of the importance of these cells in the pathogenesis of the immunoregulation of myeloma, their incidence in another lymphoid organ was determined. CD5+ B cells were studied in 9 spleens from patients with multiple myeloma and in 10 spleen...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830370306
更新日期:1991-07-01 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::Red blood cell (RBC) autoantibodies are a relatively uncommon cause of anemia. However, autoimmune hemolytic anemia (AIHA) must be considered in the differential diagnosis of hemolytic anemias, especially if the patient has a concomitant lymphoproliferative disorder, autoimmune disease, or viral or mycoplasmal infecti...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.10062
更新日期:2002-04-01 00:00:00
abstract::We have developed a rapid approach to detect the two most common alpha-thalassemia-2 (alpha-thal-2) determinants by the polymerase chain reaction (PCR) technique, which takes a few hours to complete. Specific oligonucleotides selectively amplify appropriate segments of the chromosome with the deletion and the normal c...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830460309
更新日期:1994-07-01 00:00:00
abstract::Chimeric antigen receptor (CAR) T-cell therapy represents a major advancement in personalized cancer treatment. In this strategy, a patient's own T cells are genetically engineered to express a synthetic receptor that binds a tumor antigen. CAR T cells are then expanded for clinical use and infused back into the patie...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.25418
更新日期:2019-05-01 00:00:00
abstract::A 17-year-old male with bilineal hybrid acute leukemia is described. Two-color flow cytometric analysis of blast surface phenotype revealed that there were two groups of blasts which showed either CD 10+ CD 19+ CD 13- CD 33- or CD 10- CD 19- CD 13+ CD 33+, but not both. He developed a complete remission by treatment w...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830350211
更新日期:1990-10-01 00:00:00
abstract::Thrombotic thrombocytopenic purpura (TTP) is a microangiopathy syndrome caused by a congenital or acquired deficiency of ADAMTS13, a plasma metalloprotease that cleaves von Willebrand factor (VWF) and thus prevents the formation of platelet-rich thrombi in the microcirculation. TTP can be fatal if not appropriately an...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.23527
更新日期:2013-10-01 00:00:00
abstract::By using Dexter-type long-term marrow cultures (D-LTMC), it has been shown previously that hematopoietic progenitor cells (HPC) from patients with aplastic anemia (AA) have a deficient proliferation in vitro. The studies reported to date, however, have focused exclusively on granulomonocytic progenitors and no informa...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199810)59:2<149::aid-ajh8>
更新日期:1998-10-01 00:00:00
abstract::Vascular complications, including pulmonary hypertension (PH), have been reported to occur following splenectomy for various disorders,including hereditary spherocytosis (HS). We performed a prospective cross-sectional study of 36 adults with HS (78% with prior splenectomy)utilizing echocardiography to estimate tricus...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.22182
更新日期:2011-12-01 00:00:00
abstract::The prevention of Rhesus D alloimmunization through Rh immune globulin (RhIg) administration is the major indication for the accurate detection and quantification of fetomaternal hemorrhage (FMH). In the setting of D incompatibility, D-positive fetal cells can sensitize the D-negative mother, resulting in maternal ant...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.22255
更新日期:2012-04-01 00:00:00
abstract::Splenectomy is a time-honoured well established approach for patients with steroid-resistant immune thrombocytopenia (ITP). However, due to the more recent availability of therapeutic options alternative to splenectomy, such as rituximab and agonists of the thrombopoietin-receptor, the choice of second-line therapy is...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.23823
更新日期:2014-11-01 00:00:00
abstract::Indolent non-hodgkin lymphomas (iNHL) are a rare cause of monoclonal immunoglobulin deposits-related glomerulopathy (mIgGN). In patients with iNHL-related mIgGN, whether treatment should include either single or a combination of drug(s) to target the malignant clone and renal inflammation remains elusive. In this retr...
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.23798
更新日期:2014-10-01 00:00:00
abstract::We have generated a murine hybridoma that secretes a monoclonal antibody (mAb) that is highly specific for hemoglobin C (HbC) [alpha 2 beta 2 6(A3)Glu----Lys] and shows no cross reactivity with HbA, HbA2, HbF, HbS, HbE, or Hb O-Arab. Using this antibody, we developed a simple and rapid enzyme linked immunosorbent assa...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830330308
更新日期:1990-03-01 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::Intravenous morphine is the treatment of choice for severe pain during vaso- occlusive crisis in sickle cell disease (SCD). However, side effects of morphine may hamper effective treatment, and high plasma levels of morphine are associated with severe complications such as acute chest syndrome. Furthermore, adequate d...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.20944
更新日期:2007-11-01 00:00:00
abstract::A 71-year-old woman and her elder sister developed ligneous conjunctivitis after ocular surgery. Laboratory tests demonstrated that the proband and her sister had 6.6% and 8.1% of plasminogen activity, and 1.2 and 1.4 mg/dl of antigen, respectively. Thus, they were diagnosed as having severe type I plasminogen deficie...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21402
更新日期:2009-06-01 00:00:00
abstract::Although treatment with plasma exchange increased the survival of patients with thrombotic thrombocytopenia purpura to 80% in the 1980s, no further increase of survival occurred over the next 20 years. However, more consistent use of adjuvant treatment with corticosteroids and rituximab in recent years has begun to fu...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.23126
更新日期:2012-05-01 00:00:00
abstract::The Sicilian type of (delta beta) (0)-thalassemia characterized by a approximately 13 kb deletion, was present in a Turkish boy who is a homozygote and in his heterozygous parents who are first cousins. The father with approximately 21% Hb F had five alpha-globin genes (alpha alpha/alpha alpha alpha) and the mother wi...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830340316
更新日期:1990-07-01 00:00:00
abstract::Splenic lymphoma with villous lymphocytes (SLVL) is a relatively new entity with only a few reports published. We report seven cases of SLVL with detailed clinicopathologic and comprehensive immunophenotypic studies to further characterize this lymphoma, which is frequently confused with hairy cell leukemia and other ...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830450107
更新日期:1994-01-01 00:00:00
abstract::Autologous blood doping refers to the illegal re-transfusion of any quantities of blood or blood components with blood donor and recipient being the same person. The re-transfusion of stored erythrocyte concentrates is particularly attractive to high-performance athletes as this practice improves their oxygen capacity...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.26078
更新日期:2020-12-16 00:00:00
abstract::This paper describes, for the first time, the utilization of nebulized morphine in the management of severe chest pain in two young adult African-American patients who suffered from generalized acute sickle cell painful episodes. While hospitalized, both patients developed new sharp chest wall pain, and were treated w...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20064
更新日期:2004-06-01 00:00:00