Abstract:
:Propagation of the vaso-occlusive process in sickle cell anaemia (SCA) is a complex process involving the adhesion of steady-state SCA patients red cells and reticulocytes to the vascular endothelium. The effect of hydroxyurea therapy (HUT) on the adhesive properties of sickle cells and the expression of adhesion molecule genes by erythroid cells of SCA individuals is not yet fully understood. The expressions of the CD36 gene and the VLA-4-integrin subunit genes, CD49d (alpha-subunit) and CD29 (beta-subunit), were compared in the reticulocytes of steady-state SCA patients and patients on HUT using real-time PCR. Basal adhesion of red cells from these subjects was also compared using static adhesion assays, as was surface protein expression, using flow cytometry. Basal sickle red cell adhesion to fibronectin was significantly greater than that of normal cells (P < 0.01); in contrast, HUT was associated with significantly lower levels (P < 0.01) of red cell adhesion that were similar to those of control cells; this decrease could not be justified solely by altered reticulocyte numbers in this population. Accordingly, flow cytometry demonstrated that reticulocytes from patients on HUT had significantly lower CD36 and CD49d surface expressions (P < 0.01) and, importantly, significantly lower expressions of the CD36, CD49d and CD29 genes (P < 0.05) than reticulocytes of SCA patients not on HUT. Taken together, data support the hypothesis that HUT reduces the adhesive properties of sickle cells and that this decrease appears to be mediated, at least in part, by a decrease in the gene and, consequently, surface protein expression of adhesion molecules such as VLA-4 and CD36.
journal_name
Eur J Haematoljournal_title
European journal of haematologyauthors
Gambero S,Canalli AA,Traina F,Albuquerque DM,Saad ST,Costa FF,Conran Ndoi
10.1111/j.1600-0609.2006.00788.xsubject
Has Abstractpub_date
2007-02-01 00:00:00pages
144-51issue
2eissn
0902-4441issn
1600-0609pii
EJH788journal_volume
78pub_type
杂志文章abstract:OBJECTIVE:To correlate the clinical and hematological features of β-globin gene haplotypes with the oxidative stress status in pediatric patients with sickle cell disease (SCD). METHODS:A total of 95 patients with SCD and 40 healthy children were studied. The β-globin cluster, plasma lipid peroxidation (LPO) and plasm...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2010.01528.x
更新日期:2010-12-01 00:00:00
abstract::We investigated the significance of cytokines (soluble interleukin-2 receptor, granulocyte-macrophage colony-stimulating factor, interleukin-6, and interferon-gamma) and CD68-positive microparticles in immune thrombocytopenic purpura. Cytokines were measured by enzyme-linked immunosorbent assay and microparticles were...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1995.tb00232.x
更新日期:1995-07-01 00:00:00
abstract:OBJECTIVES:To assess the molecular basis of phenotypic heterogeneity in north Indian patients with thalassemia major (TM). METHODS:To determine the clinical severity, 130 patients of TM were studied for the age of first presentation and frequency of blood transfusion. The type of beta mutations, Xmn-1(G)gamma polymorp...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2010.01422.x
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:Myelodysplastic syndromes (MDS) and aplastic anemia (AA) are the most common anemias that require transfusion therapy in Japan. This retrospective survey investigated relationships between iron overload, chelation practices, and morbidity/mortality in patients with these diseases. METHOD:Medical histories of...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2007.00842.x
更新日期:2007-06-01 00:00:00
abstract::The oncogenes c-myc and c-ras are known to elicit a cooperative tumorigenicity. In this study we investigated their role in the pathogenesis of Hodgkin's disease. The expression of these oncogenes was determined in Hodgkin's disease patients by avidin-biotin peroxidase complex immunohistochemical staining and was comp...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1995.tb00247.x
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVES:Recent studies have indicated that patients who receive stem cell transplantation (SCT) and rituximab demonstrate an increased risk of developing hypogammaglobulinemia. Such hypogammaglobulinemia has been found to be due to delayed recovery of memory B cells with an abnormal cell marker expression and impair...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2008.01174.x
更新日期:2009-02-01 00:00:00
abstract::MALT lymphoma is usually described in association with Helicobacter pylori, HCV, HHV8, Campylobacter jejuni or in a setting of overreactive immunity. In HIV(+) patients, MALT lymphoma is most commonly described in children. We describe here an original case of HIV(+) MALT lymphoma with bronchial, conjuctival and laryn...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2004.00339.x
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:Infections in chronic lymphocytic leukemia (CLL) have been thoroughly investigated in the setting of clinical trials and single-center studies. However, large cohort studies on real-world data and studies on temporal trends are lacking. We performed a nationwide study on serious bacterial infections in CLL. ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.13477
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:Clonal dominance is characteristic of patients with post-polycythemia vera myelofibrosis (post-PV MF), whereas patients in chronic phase usually display polyclonal hematopoiesis. The aim of this work was to study the mutational burden of JAK2V617F at the progenitor level in patients with PV and correlate it ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12425
更新日期:2015-03-01 00:00:00
abstract::A murine cultured cell line (MKM-O) was established from a tumor of a BALB/C (nu/nu) mouse that had been subcutaneously inoculated with human hepatoma tissue fragments in the same location. The MKM-O cell line was proven to be of endothelial origin by morphological examinations and positive staining with fluorescein-l...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1987.tb00743.x
更新日期:1987-08-01 00:00:00
abstract:BACKGROUND:Paroxysmal nocturnal hemoglobinuria (PNH) diagnostic guidelines recommend single-tube five- to six-color or two-tube four-color assays. PNH clones are detectable in only a fraction of patients at risk, and screening for new PNH cases can be complex and expensive. In this multicenter study, we have validated ...
journal_title:European journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/ejh.12885
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to compare the major transplant outcomes between patients receiving hematopoietic stem cell transplantation (HSCT) from bone marrow (BM) or peripheral blood stem cells (PBSC). METHODS:All consecutive HSCT patients using BM or PBSC from an HLA-matched related donors for haemat...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12508
更新日期:2015-11-01 00:00:00
abstract::Haemoglobin (Hb) Hope [beta136(H14)Gly-->Asp(GGT-->GAT)] is one of the unstable haemoglobin variants of the beta-globin chain, which is demonstrated in people of various ethnic backgrounds. Here we report a Thai female patient with clinical thalassaemia intermedia since childhood. This patient had experienced neither ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2007.00907.x
更新日期:2007-09-01 00:00:00
abstract::Bcl-2 expression, the number of apoptotic cells and the growth and differentiation of early bone marrow progenitor cells were studied in patients with confirmed diagnosis of acute myeloid leukaemia (AML). Bone marrow cells from normal individuals were used as controls. We observed an increased percentage of bcl-2-mono...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1999.tb01112.x
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVES:Internal tandem duplications (ITDs) of the fms-like tyrosine kinase 3 ( FLT3) gene occur in 13-35% of patients with acute myeloid leukemia (AML). FLT3-ITD is associated with poor clinical outcome and is an indication for allogeneic stem cell transplantation (allo-SCT). METHODS:To investigate FLT3-ITD length...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2012.01785.x
更新日期:2012-07-01 00:00:00
abstract::The effect of rhIL-3 was investigated in 32 patients with newly diagnosed non-Hodgkin lymphoma in a phase I/II trial. All patients received 6 cycles of standard CHOP chemotherapy, and each patient was his own control where rhIL-3 was given as a daily s.c. injection for 14 days (day 2-15) in cycle 2 and 4, while cycle ...
journal_title:European journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1600-0609.1995.tb01772.x
更新日期:1995-02-01 00:00:00
abstract::Serological analyses within epidemiological cohort and case-control studies indicate to an association between HBV infection and risk of multiple myeloma (MM). To verify the relationship with an independent approach, we investigated the correlation between HBV positivity and chromosomal aberrations within 680 patients...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/ejh.12018
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVES:Beta thalassaemia major (β-TM) and sickle-cell disease (SCD) are severe haemogobinopathies requiring life-lasting, advanced medical management. In the Mediterranean region, both conditions occur with high frequency. We assessed the efficacy of the National Program for the Prevention of Haemoglobinopathies in...
journal_title:European journal of haematology
pub_type: 历史文章,杂志文章
doi:10.1111/ejh.12076
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVE:The primary objective was to assess the effect of central nervous system involvement in acute myeloid leukemia (CNS-AML) on outcomes after allogeneic hematopoietic stem cell transplant (allo-HCT). The secondary objective was to assess the utility of pretransplant cerebrospinal fluid (CSF) assessment in AML. ...
journal_title:European journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/ejh.13314
更新日期:2019-11-01 00:00:00
abstract::Tissue factor (TF) production is under strict control in mature monocytic cells. However, constitutive expression of TF can be found in myelomonocytic cells and in haematopoietic cells arrested at an early stage of differentiation. In this paper we show that TF expression is down-regulated during the monocyte/granuloc...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1999.tb01124.x
更新日期:1999-08-01 00:00:00
abstract::The fate of polymorphonuclear neutrophilic granulocytes (PMN) after their mobilization from the bone marrow of healthy individuals is not clearly understood. It has been suggested that there is a continuous utilization of these cells in widespread, subclinical inflammatory foci, where they are ultimately degraded. The...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1996.tb01933.x
更新日期:1996-04-01 00:00:00
abstract::The development of an unusual case of primary pleural effusion in a 90-year-old human immunodeficiency virus (HIV)-negative Japanese woman with no identifiable tumor mass has been described. Pleural effusion specimens contained large diffuse lymphoma cells, with the phenotype and genotype of a B-cell lineage (positive...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1034/j.1600-0609.2003.00083.x
更新日期:2003-07-01 00:00:00
abstract::This study shows that the ingestion of ethanol provokes alterations in iron metabolism which may lead to iron overload. Impaired release of reticuloendothelial iron was shown by a decrease of the maximum red blood cell utilization when radioactive iron was supplied as colloidal iron. An impairment in the erythropoieti...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1988.tb00204.x
更新日期:1988-10-01 00:00:00
abstract::In secondary erythrocytosis, the elevated red cell count is powered by factors outside the erythroid compartment, for instance by raised erythropoietin (EPO) synthesis based on congenital defects of the oxygen-sensing pathway. The principal transcriptional regulator of EPO synthesis is endothelial PAS domain-containin...
journal_title:European journal of haematology
pub_type:
doi:10.1111/ejh.13241
更新日期:2019-07-01 00:00:00
abstract::ECP (eosinophil cationic protein) was purified in high yield from the granules of human buffy coat eosinophils obtained from healthy individuals. The separation procedure included gel filtration on Sephadex G-75, ion-exchange chromatography on Bio Rex 70, and chelating chromatography on zinc-chelate Sepharose 6B. The ...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1988.tb00850.x
更新日期:1988-05-01 00:00:00
abstract:OBJECTIVES:Hypocholesterolemia has been previously described in patients affected by thalassemia. In this study we retrospectively evaluated the cholesterol level in two groups of patients affected by either thalassemia major (TM) or thalassemia intermedia (TI), with the aim of establishing factors correlated to hypoch...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2008.01195.x
更新日期:2009-03-01 00:00:00
abstract::To estimate the efficacy of human megakaryocyte purification techniques, mixtures of known numbers of megakaryocytes with a known ploidy range and of bone marrow or peripheral blood mononuclear cells were made. These artificial bone marrow samples were submitted to either a counterflow centrifugal elutriation or Perco...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.1991.tb01575.x
更新日期:1991-10-01 00:00:00
abstract::The association of infectious mononucleosis and an immunocompromised host such as occurs in acute leukemia is reported. The most common cause of infectious mononucleosis is Epstein-Barr virus (EBV) and cytomegalovirus (CMV). Patients with mononucleosis syndrome caused by other agents are rare. We report a case of acut...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1034/j.1600-0609.2002.01647.x
更新日期:2002-04-01 00:00:00
abstract::In acute myeloid leukemia (AML) mouse models, the RUNX1-RUNX1T1 fusion protein has failed to produce leukemia by itself, but alternative splicing of exon 9a of the RUNX1-RUNX1T1 fusion transcript (FT) has recently been shown to enhance the leukemogenic potential. We have analyzed 138 diagnosis and follow-up samples fr...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2009.01371.x
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Primary Hepatic (PHL) and Primary Splenic (PSL) non-Hodgkin's Lymphoma are rare entities. Small series of PHL and PSL have been reported, suggesting a non-fortuitous association with Hepatitis C Virus (HCV) infection. The prognosis is believed to be dismal, with early recurrence and short survival. PATIENTS...
journal_title:European journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1600-0609.2008.01081.x
更新日期:2008-07-01 00:00:00