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 absolute number of Tregs was determined at diagnosis, and correlated to main clinical and biological features, as well as to the need of receiving any specific therapy during the course of the disease. After a median follow-up of 30 months, 12 patients(16%) required therapy at some time from the diagnosis. Treated patients showed a significant higher number of peripheral white blood cells and B-lymphocytes, platelet count, cases with unmutated immunoglobulin heavy chain status, and high-risk cytogenetic abnormalities,as well as lower hemoglobin values, than patients who did not need therapy. A greater number of circulating Tregs was detected in treated patients (P < 0.001). Multivariate analysis confirmed that the absolute number of Tregs was an independent predictor of TFT in these patients, the best predictive cut-off being 41/mL. These data show that the absolute Tregs cell number is able to identify Rai stage 0 CLL patients at higher risk of requiring therapy.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
D'Arena G,D'Auria F,Simeon V,Laurenti L,Deaglio S,Mansueto G,Del Principe MI,Statuto T,Pietrantuono G,Guariglia R,Innocenti I,Martorelli MC,Villani O,De Feo V,Del Poeta G,Musto Pdoi
10.1002/ajh.23170subject
Has Abstractpub_date
2012-06-01 00:00:00pages
628-31issue
6eissn
0361-8609issn
1096-8652journal_volume
87pub_type
信件abstract::To compare the features of sickle-cell anemia in Brazil with those in other locales, we studied the effects of the beta-globin-like gene cluster haplotype and alpha-thalassemia upon the clinical and hematological features in 85 patients. The distribution of haplotypes differed from that in the United States and Jamaic...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199610)53:2<72::AID-AJH3>3
更新日期:1996-10-01 00:00:00
abstract::The Mo2 antibody recognizes a monocyte-specific cell surface antigen of unknown function. Upward modulation of Mo2 surface epitope density was demonstrated in response to 72-hr culture of monocytes with respiratory syncytial virus (RSV), but this was not seen after culture with phytohemagglutinin or other respiratory ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830250314
更新日期:1987-07-01 00:00:00
abstract::Hepcidin is a small defensin-like peptide whose production by hepatocytes is modulated in response to anemia, hypoxia, or inflammation. Hepcidin could also act as an indicator of functional iron deficiency in these patients. Cross-sectional study was performed to assess hepcidin correlations with renal function, iron ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20657
更新日期:2006-11-01 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:DISEASE OVERVIEW:Waldenström macroglobulinemia (WM) is a lymphoplasmacytic lymphoma with immunoglobulin M (IgM) monoclonal protein. Clinical features include anemia, thrombocytopenia, hepatosplenomegaly, and lymphadenopathy. DIAGNOSIS:Presence of IgM monoclonal protein associated with 10% clonal lymphoplasmacytic cell...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.22014
更新日期:2011-05-01 00:00:00
abstract::Sickle cell (SS) disease is a complex of various genetic conditions. In some, homozygosity for the beta S gene may be present alone or in combination with the heterozygous or homozygous alpha-thalassemia-2 condition. Such combinations might ameliorate the clinical and hematological condition of the patient. The same m...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830060210
更新日期:1979-01-01 00:00:00
abstract::AL amyloidosis, a systemic disorder characterized by widespread deposition of amyloid fibrils derived from monoclonal Ig light chains in organs and soft tissues, is typically caused by an underlying plasma cell dyscrasia. However, this disease can also be associated rarely with a B-cell lymphoproliferative disorder. I...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20635
更新日期:2006-09-01 00:00:00
abstract::Tumor cells of 14 cases of non-Hodgkin lymphomas and 2 cases of Hodgkin disease were tested for the presence of the transferrin receptor (CD71) by flow cytofluorimetry before 67gallium imaging. It appeared that expression of CD71 phenotype was closely related to the positivity of gallium scan before therapy. We feel t...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830360313
更新日期:1991-03-01 00:00:00
abstract::In this study, we analyzed a thiotepa-based conditioning regimen for allogeneic stem cell transplantation in adults with acute lymphoblastic leukemia, using the EBMT database. A total of 323 patients were identified. The median age was 43 years. Disease status at transplant was first complete remission (CR1) in 48.9%,...
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.24567
更新日期:2017-01-01 00:00:00
abstract::A specialized serum ferritin assay has been developed for the detection of iron deficiency in epidemiologic studies. An enzyme immunoassay (EIA) was employed to eliminate the need for radioisotopes. The problem of low sensitivity inherent with the EIA for serum ferritin was eliminated by the use of monoclonal immunolo...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830230209
更新日期:1986-10-01 00:00:00
abstract::We molecularly characterized sixty-seven cases of Hb H disease by the polymerase chain reaction. The strategy depends on amplifying the alpha-thalassemia-1 (alpha-thal-1) gene by primers flanking the breakpoint and sequence differences of the 3' end of the alpha-globin gene and the nonhomologous elements I, II, and II...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830450405
更新日期:1994-04-01 00:00:00
abstract::Anthracyclines have contributed to a marked increase in survival in different types of cancer [1,2]. Unfortunately, they are associated with dose-dependent cardiotoxicity and heart failure (HF) [3–8]. Change to a weekly dosage schedule with slow infusions has been tested, a strategy that requires more frequent hospita...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.21840
更新日期:2010-11-01 00:00:00
abstract::An HTLV-I-seronegative case of adult T-cell leukemia (ATL) carrying the HTLV-I genome is reported. Screening serological tests were negative and Western blot analysis revealed only a faint band for HTLV-I p24. Polymerase chain reaction (PCR) disclosed the presence of HTLV-I gag, pol, env, pX, and LTR sequences in the ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199610)53:2<133::AID-AJH13
更新日期:1996-10-01 00:00:00
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) an...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830430302
更新日期:1993-07-01 00:00:00
abstract::Little is known about the frequency and significance of clinically unapparent or occult hemorrhage in ITP. Therefore, we prospectively explored the sites and frequency of occult bleeding in children with severe ITP at diagnosis or upon symptomatic relapse in a prospective, single-institution cohort study of patients ≤...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24264
更新日期:2016-03-01 00:00:00
abstract::A 25-year-old African-American man with sickle cell-beta(+)-thalassemia presented with acute asthma of 2 days' duration. The asthma was well controlled by 48 hr, and parenteral medications were changed to oral bronchodilators and steroids. Sixty hours after presentation, he developed pain similar to that of sickle cel...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830460418
更新日期:1994-08-01 00:00:00
abstract::Trimethoprim and sulfamethoxazole (Bactrim r) is a widely used antibiotic combination effective against a broad spectrum of microbial organisms. There are reports of neutropenia developing during even brief periods of oral therapy, particularly in individuals with either folate deficiency or increased folate requireme...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830230102
更新日期:1986-09-01 00:00:00
abstract::Although large vessel thrombi are occasionally reported in patients with homozygous sickle cell disease, the role of intravascular coagulation in typical pain crises is controversial. Therefore, we studied 24 sickle cell patients during and between episodes of pain crisis, using several sensitive tests of hemostasis. ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830230403
更新日期:1986-12-01 00:00:00
abstract::The intravascular pool of human polymorphonuclear leukocytes (PMN) is composed of one compartment which is circulating and another that is marginated to the vascular endothelium. Administration of B-adrenergic agonists leads to a rapid demargination with an increase in the circulating PMN pool. The marginating PMN has...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830240107
更新日期:1987-01-01 00:00:00
abstract::We have investigated the methods for the maintenance of a pregnancy in a patient with thrombotic thrombocytopenic purpura (TTP), said condition, since 1984, having been controlled by a plasma infusion every 3 to 4 weeks. In a preliminary trial it was confirmed that an infusion of the high molecular weight fraction (HM...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830350307
更新日期:1990-11-01 00:00:00
abstract::A 49-year-old Caucasian woman presented with features suggestive of thrombotic microangiopathy (TMA). She did not respond to treatment with repeated plasma exchange and corticosteroids. A bone marrow biopsy revealed presence of metastatic carcinoma. A limited autopsy revealed presence of breast cancer with rib metasta...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.20783
更新日期:2007-04-01 00:00:00
abstract::Neutrophil elastase (NE) is a serine protease stored in the primary granules of neutrophils that proteolytically cleaves multiple cytokines and cell surface proteins on release from activated neutrophils. Recent reports of mutations in the gene encoding this enzyme in some patients with neutropenic syndromes prompted ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10434
更新日期:2003-11-01 00:00:00
abstract::Patients initially diagnosed with type 1 von Willebrand disease (VWD) have been reclassified as type 2 after a more exhaustive analysis in several studies. Our study's objectives were (1) to reanalyze patients that were previously diagnosed as type 1 to achieve a more accurate diagnosis and (2) to compare the von Will...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20470
更新日期:2005-11-01 00:00:00
abstract::This case report describes a patient with hepatitis C virus infection responding to pegylated INF/ribaviron therapy, who developed immune thrombocytopenia. The severe thrombocytopenia failed to resolve with cessation of the peg-IFN/ribaviron. Because of rising hepatitis C virus RNA levels and evidence of rising serum ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20270
更新日期:2005-02-01 00:00:00
abstract::Deformability of normal and sickle erythrocytes was measured by means of micropipette elastimetry with determination of intrinsic membrane rigidity (P) and total cell deformability (Pt). In the elastimetric technique employed, negative pressure at the pipette tip was generated and measured continuously. Membrane rigid...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830040103
更新日期:1978-01-01 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::A case of idiopathic immune-mediated von Willebrand's disease (AvWD) associated angiodysplasia and recurrent lower gastrointestinal bleeding is reported. Coagulation parameters at presentation were activated partial thromboplastin time of 41 sec, bleeding time >15 min, factor VIII procoagulant activity, 5%; von Willeb...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199902)60:2<151::aid-ajh13
更新日期:1999-02-01 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::Fetal calf serum (FCS) is used as a component of the media for cells grown in culture. However, the high cost of FCS has stimulated a search for a possible alternative. Approximately 10% of human platelet concentrates prepared for clinical transfusions are outdated. Sera prepared from platelet concentrates were compar...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830170104
更新日期:1984-07-01 00:00:00
abstract::Thrombospondin (TSP), a large protein found in platelet alpha-granules (as TSP-1), mediates adhesion of sickle reticulocytes to cultured vascular endothelium. To further explore the physiologic relevance of this observation, we have measured plasma TSP levels and platelet TSP-1 content in subjects with sickle cell dis...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199604)51:4<296::AID-AJH8>
更新日期:1996-04-01 00:00:00