Abstract:
:The production of erythropoietin (Epo), the glycoprotein hormone which controls red blood cell formation, is regulated by feedback mechanisms sensing tissue oxygenation. The mechanism of the putative oxygen sensor has yet to be elucidated. There is evidence that at least two pathways participate in hypoxia signal transduction. One appears to involve a specific haem protein, and a second implicates reactive oxygen species (ROS). Iron catalyses the generation of intracellular ROS and therefore alters the cellular redox state. We have investigated the effect of modulating intracellular iron content on Epo production in Hep 3B cells. Iron chelation stimulates Epo production at 20% O2 and enhances Epo production at 1% O2, but it has no additive effect on cobalt-induced Epo production. Excess molar iron inhibited Epo production in response to hypoxia, desferrioxamine (DFO) and cobalt chloride and inhibited the DFO-enhancing effect of hypoxia-induced Epo production. We found that sulphydryl oxidising agents exert a differential inhibitory effect on hypoxia-induced versus DFO-induced Epo production, providing further evidence that multiple pathways of oxygen sensing exist.
journal_name
Ann Hematoljournal_title
Annals of hematologyauthors
Daghman NA,Elder GE,Savage GA,Winter PC,Maxwell AP,Lappin TRdoi
10.1007/s002770050514subject
Has Abstractpub_date
1999-06-01 00:00:00pages
275-8issue
6eissn
0939-5555issn
1432-0584journal_volume
78pub_type
杂志文章abstract::Relapse remains one of the major obstacles in Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ALL) even after allogeneic hematopoietic stem cell transplantation. The persistence of leukemia-propagating cells (LPCs) may lead to the recurrence of Ph+ALL. Using a xenograft assay, LPCs enrichment in the ...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-018-3253-5
更新日期:2018-05-01 00:00:00
abstract::Cytokines and adhesion molecules play an important role in the pathophysiology of vaso-occlusion in sickle cell disease (SCD), and their in vivo profiles are potential tools for assessing SCD severity. We compared steady-state soluble vascular cell adhesion molecule-1 (sVCAM-1) serum levels to clinical (painful crisis...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-003-0609-1
更新日期:2003-02-01 00:00:00
abstract::It is often difficult for standard blood banks in Korea to supply adequate amounts of blood for patients with rare phenotype. Moreover, the definition of a blood in need is ambiguous, and much remains to be learned. In this study, we determined the prevalence of various red blood cell (RBC) antigens from a donor viewp...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-016-2645-7
更新日期:2016-05-01 00:00:00
abstract::A 40-year-old patient with low-grade B-NHL developed a generalized macular-papular rash following the first cycle of fludarabine treatment which progressed to a complete epidermal necrolysis following the second cycle. Clinical symptoms and the results of the direct and indirect immunofluorescence were consistent with...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050347
更新日期:1997-11-01 00:00:00
abstract::Myelodysplastic syndromes are usually associated with pancytopenia. Disorders involving deletion of the long arm of chromosome 5 (5q-syndrome) and, rarely, patients with karyotypic abnormalities involving chromosome 3 associated with abnormal thrombopoiesis may have a normal or even raised platelet count. Other cytoge...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050283
更新日期:1997-04-01 00:00:00
abstract::Patients with non-Hodgkin's lymphoma (NHL) receiving rituximab-containing chemotherapy are at risk of developing respiratory complications, but comprehensive information on these complications and their impact on survival is lacking. We performed a retrospective cohort analysis on 123 NHL patients who received rituxim...
journal_title:Annals of hematology
pub_type: 临床试验,杂志文章
doi:10.1007/s00277-018-3448-9
更新日期:2018-12-01 00:00:00
abstract::We retrospectively analyzed very early chimerism before and ongoing neutrophil engraftment (days 7, 14, 21, 28) and investigated the influence of conditioning regimens and stem cell sources on donor-type chimerism in 59 Japanese patients who had received allogeneic hematopoietic stem cell transplantation. The percenta...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-008-0542-4
更新日期:2008-12-01 00:00:00
abstract::The aim of this study was to analyze the ability of an alloantibody from a patient with severe von Willebrand disease (vWD) to interfere with the vWF domain for FVIII, to inhibit factor VIII (FVIII), and to compare it with a rabbit polyclonal antibody. The vWF domain for binding to FVIII was assayed by a method previo...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050323
更新日期:1997-09-01 00:00:00
abstract::The purine analogs (PAs) cladribine and pentostatin have transformed the prognosis of hairy cell leukemia (HCL). However, some patients still relapse after PAs, or fail to reach an optimal response, and new agents are needed to further improve treatment outcome. We retrospectively studied 41 HCL patients from 10 cente...
journal_title:Annals of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00277-014-2175-0
更新日期:2015-01-01 00:00:00
abstract::Umbilical cord blood is capable of hematopoietic stem cell reconstitution in children. However, the major limitation of cord blood is a relatively low content of pluripotent progenitor cells. Thus, safe engraftment for adolescents and for adults is still not predictable and a technology for ex vivo expansion of umbili...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050530
更新日期:1999-08-01 00:00:00
abstract::Hematopoietic recovery in 115 patients with metastatic breast cancer or metastatic melanoma, enrolled in phase-I studies of recombinant growth factors while undergoing treatment with high-dose chemotherapy with autologous bone marrow support, was examined with assays of bone marrow progenitor cells and peripheral bloo...
journal_title:Annals of hematology
pub_type: 临床试验,杂志文章
doi:10.1007/BF01696346
更新日期:1993-12-01 00:00:00
abstract::Hodgkin lymphoma (HL), a disease of mostly young patients, also peaks in the elderly. Despite the profound improvement in the outcome of young patients, in the elderly, 5-year progression-free survival (PFS) rates are under 70%. Interim PET-CT (iPET) is known to be highly predictive for PFS in young HL patients, but i...
journal_title:Annals of hematology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/s00277-019-03686-y
更新日期:2019-07-01 00:00:00
abstract::Angioimmunoblastic lymphadenopathy with dysproteinemia (AILD) is an atypical lympho-proliferative disorder with borderline features that often constitute a diagnostic challenge for the hematopathologist and a therapeutic dilemma for the treating clinician. Morphologically, the involved lymph nodes in this disorder are...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050244
更新日期:1996-12-01 00:00:00
abstract::Chronic idiopathic neutropenia of adults (CINA) is a granulocytic disorder characterised by the "unexplained" decrease in the number of circulating neutrophils. Serum inflammatory cytokines and chemokines are increased in CINA. In addition, cytokines gene polymorphisms are associated with increased levels of respectiv...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-005-1066-9
更新日期:2005-10-01 00:00:00
abstract::Recently we described a cutaneous T-cell lymphoma expressing the gamma/delta T-cell receptor [5]. The patient suffering from this lymphoma showed low numbers of myeloid and T cells in peripheral blood, while B and NK cells were relatively increased. In vitro culture of the patient's bone marrow (BM) cells revealed a s...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/BF01695808
更新日期:1992-09-01 00:00:00
abstract::Ruxolitinib, a JAK1 and JAK2 inhibitor, has been tested and approved for the treatment of primary and secondary myelofibrosis (MF). Aim of our study is to report safety and efficacy of ruxolitinib in 98 patients affected by MF treated outside clinical trials and collected and treated consecutively by the Lazio Coopera...
journal_title:Annals of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00277-016-2884-7
更新日期:2017-03-01 00:00:00
abstract::Telomere shortening represents an established mechanism connecting aging and cancer development. We sequentially analyzed telomere length (TL) of 49 acute myeloid leukemia (AML) patients at diagnosis (n = 24), once they achieved complete cytological remission (CCR) and/or during refractory disease or relapse and after...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-017-3049-z
更新日期:2017-09-01 00:00:00
abstract::The hypomethylating agents azacytidine and decitabine are unaffordable for many patients with MDS. The combination of the DNA methyltransferase inhibitor hydralazine and the histone deacetylase inhibitor valproate has shown preliminary efficacy in MDS. The aim of this study is to evaluate the clinical efficacy and saf...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-017-3103-x
更新日期:2017-11-01 00:00:00
abstract::A 24-year-old woman with a large cell anaplastic CD 30-positive T-cell non-Hodgkin's lymphoma (NHL) developed downbeat nystagmus, anisocoria, and oscillopsia. Prior to overt cerebral invasion by NHL, she had a thiamine deficiency with very low thiamine concentrations in the CSF, probably caused by protracted vomiting ...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770050484
更新日期:1999-02-01 00:00:00
abstract::Aberrant promoter methylation of RASSF6 and RASSF10 occurs at a high frequency in acute lymphoblastic leukemia (ALL). Because of the complexity of the current minimal residual disease (MRD) detecting-methods, the DNA methylation status of the RASSF6 and RASSF10 genes could potentially become biomarkers for the assessm...
journal_title:Annals of hematology
pub_type: 临床试验,杂志文章
doi:10.1007/s00277-019-03775-y
更新日期:2019-12-01 00:00:00
abstract::Venous thromboembolism (VTE) is a well-recognized complication in pediatric oncology patients. Studies in adult oncology patients have suggested a potential negative association between VTE and survival, but this association has not been examined in pediatric patients yet. The aim of this study was to assess the assoc...
journal_title:Annals of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00277-018-3371-0
更新日期:2018-10-01 00:00:00
abstract::We investigated the efficacy of an antithymocyte globulin/cyclophosphamide preparative regimen prior to allogeneic stem cell transplantation from HLA-identical siblings in patients with severe aplastic anemia. Since 1990, 21 patients, 6 males and 15 females, with a median age of 25 years (range: 7-43) have been enroll...
journal_title:Annals of hematology
pub_type: 临床试验,杂志文章
doi:10.1007/s00277-002-0566-0
更新日期:2002-11-01 00:00:00
abstract::Bortezomib is one of the most widely used novel drugs for the treatment of multiple myeloma (MM). However, twice-weekly intravenous administration is associated with innegligible adverse events and treatment discontinuation. We therefore evaluated the long-term efficacy and feasibility of reduced frequency treatment w...
journal_title:Annals of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00277-016-2661-7
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Low folate intake and changes in folate metabolism due to polymorphisms in the methylentetrahydrofolate reductase (MTHFR) gene have been associated with myelomagenesis. However, controversial data have been published regarding a protective role of variant alleles of MTHFR on MM. PATIENTS AND METHODS:To inve...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-006-0097-1
更新日期:2006-07-01 00:00:00
abstract::Reactive oxygen intermediates (ROI) generated in the respiratory burst reaction are crucial for the killing of bacteria and fungi in phagocytes. The key enzyme for the respiratory burst reaction is the NADPH oxidase. Reactive oxygen intermediates have additionally been proposed to be of general importance for the expr...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-003-0837-4
更新日期:2004-04-01 00:00:00
abstract::Natural killer (NK) cell neoplasms are unusual disorders. In this study we compared results of flow cytometric immunophenotype (FCI) with cytomorphology, histopathology and clinical findings in a series of patients with NK cell neoplasms with peripheral blood and/or bone marrow involvement, and the FCI of neoplastic a...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-012-1574-3
更新日期:2013-01-01 00:00:00
abstract::We present a patient with chronic myelomonocytic leukemia who showed disseminated papules and nodules. Arguments in favor of leukemia cutis are the clinical appearance, the cyclic pattern with which the lesions appeared and disappeared, and the histologic features. The lesions reproducibly responded to treatment with ...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s002770000156
更新日期:2000-07-01 00:00:00
abstract::Autoantibody against erythrocytes has occasionally been observed in patients with de novo acute myelocytic leukemia (AML). However, it is not clear whether this autoantibody in AML patients induces frank hemolysis (autoimmune hemolytic anemia, AIHA), as seen in lymphoid neoplasms. We present two de novo AML patients w...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/BF00663016
更新日期:1996-01-01 00:00:00
abstract::Approximately, 4-11 % of the patients with idiopathic venous thrombosis (VT) show protein C (PC) deficiency. The molecular pathology of PC deficiency was analyzed in 102 patients; 98 healthy controls were also studied to assess the association of various polymorphisms with reduced PC levels. PROC gene mutations were d...
journal_title:Annals of hematology
pub_type: 杂志文章
doi:10.1007/s00277-012-1483-5
更新日期:2012-09-01 00:00:00
abstract::The evidence that leukocytes may contribute to the pathogenesis of thrombosis in Chronic Myeloproliferative Neoplasms is increasing but not definitive. To further enforces whether an increased leukocyte count is associated with thrombosis and whether this effect can be modulated by cytoreductive therapy, we analyzed t...
journal_title:Annals of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00277-009-0706-x
更新日期:2009-10-01 00:00:00