Abstract:
:Newly identified iron binding proteins isolated from rat duodenal homogenates permit better understanding of iron absorption. Mucins bind iron at acid pH to keep iron soluble and available for absorption at the more alkaline pH of the duodenum; this explains iron deficiency following prolonged achlorhydria. Integrin (90/150 kD) was identified on the absorptive surface of enterocytes in association with radioiron and is believed to facilitate transit of iron through the microvillous membrane. Mobilferrin, a 56 kD iron binding protein, was isolated from enterocyte cytosol. It coprecipitates with integrin and appears in close association with integrins in the apical cytoplasm. We postulate it accepts dietary iron from integrin and acts as the shuttle protein for iron in the cytoplasm. Since iron in enterocytes remains in equilibrium with body stores, we postulate mucosal iron uptake is regulated by the number of iron binding sites either occupied or unoccupied by iron on mobilferrin. Iron repletion of enterocytes from body stores is accomplished via transferrin receptors on the posterolateral membranes of enterocytes. Increased transfer of iron from blood into absorptive enterocytes occurs in iron replete animals to inhibit mucosal uptake of dietary iron. Little transfer of iron from plasma to enterocytes occurs in iron deficiency. Enhanced mucosal transfer of iron into the body occurs with increased body need for iron. The exact mechanism for mucosal transfer of iron into the plasma has not been defined but may also be mediated by an integrin.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Conrad ME,Umbreit JNdoi
10.1002/ajh.2830420114subject
Has Abstractpub_date
1993-01-01 00:00:00pages
67-73issue
1eissn
0361-8609issn
1096-8652journal_volume
42pub_type
杂志文章,评审abstract::Reverse transcription quantitative polymerase chain reaction (RTqPCR)is currently the most sensitive tool available for the routine monitoring of disease level in patients undergoing treatment for BCRABL1 associated malignancies. Considerable effort has been invested at both the local and international levels to stand...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.23212
更新日期:2012-07-01 00:00:00
abstract::Lymphomatoid granulomatosis (LG) is an uncommon but potentially fatal disease. The disease primarily involves the lungs; however, skin, renal, and central nervous system (CNS) are seen in varying proportions. Neurological involvement occurs in one third of the patients, and confers a worse prognosis. The use of radiot...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/(sici)1096-8652(199912)62:4<239::aid-ajh7>
更新日期:1999-12-01 00:00:00
abstract::Monoclonal B-cell lymphocytosis (MBL) with normal lymphocyte counts is associated with decreased numbers of normal circulating B-cell subsets.Little is known about the distribution of normal lymphoid cells and their subsets in the peripheral blood (PB) of subjects with monoclonal B-cell lymphocytosis (MBL). In our stu...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.23214
更新日期:2012-07-01 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::Factor V G1691A (FV-Leiden) and prothrombin G20210A mutations are major inherited risk factors for venous thrombosis. Recently, it was suggested that both mutations, through stimulation of venous and placental thrombosis events, were strongly associated with recurrent idiopathic miscarriages, although other studies di...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10223
更新日期:2002-12-01 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::Intensive induction chemotherapy using anthracycline and cytarabine backbone is considered the most effective upfront therapy in physically fit older patients with acute myeloid leukemia (AML). However, outcomes of the standard induction in elderly AML are inferior to those observed in younger patients, and they are s...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.24654
更新日期:2017-04-01 00:00:00
abstract::Karyotype is frequently used to predict response and outcome in leukemia. This post hoc exploratory analysis evaluated the relationship between baseline cytogenetics and outcome in patients with relapsed/refractory acute lymphoblastic leukemia (R/R ALL) treated with inotuzumab ozogamicin (InO), a humanized CD22 antibo...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.25394
更新日期:2019-04-01 00:00:00
abstract::This study concerned the gamma chain composition of Hb F and the haplotypes of 44 patients with beta-thalassemia major or intermedia and many of their relatives. Seventeen patients came from Northern (Turkish) Cyprus, 12 from the Istanbul area, and 15 from Macedonia and Bulgaria. Analysis of the A gamma T-G gamma-A ga...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200103
更新日期:1985-09-01 00:00:00
abstract::Imatinib mesylate radically changed the natural history of chronic myeloid leukemia (CML). The recent availability of alternative tyrosine kinase inhibitors (TKIs) renders the clinical management of CML more complex. In this article, we summarize our long-term single institution experience. From 2003 to 2012, 102 pati...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ajh.23804
更新日期:2014-10-01 00:00:00
abstract:DISEASE OVERVIEW:Ring sideroblasts (RS) are erythroid precursors with abnormal perinuclear mitochondrial iron accumulation. Two myeloid neoplasms defined by the presence of RS, include refractory anemia with ring sideroblasts (RARS), now classified under myelodysplastic syndromes with RS (MDS-RS) and RARS with thromboc...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.24637
更新日期:2017-03-01 00:00:00
abstract::Thirty-seven patients with chronic phase chronic myeloid leukaemia and fourteen healthy controls have been evaluated for lineage differentiation with immunological markers on purified bone marrow CD34 positive cells by multiparameter flow cytometry. The myeloid-associated antigen CD33 and the stem cell factor receptor...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199907)61:3<178::aid-ajh4>
更新日期:1999-07-01 00:00:00
abstract::Transfusion-related acute lung injury (TRALI) is associated with administration of all plasma containing blood products. We present a 14-year-old adolescent diagnosed with idiopathic thrombocytopenic purpura who developed acute respiratory insufficiency compatible with TRALI within 5 hr following intravenous anti-D. F...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21185
更新日期:2008-08-01 00:00:00
abstract::Eight patients with severe chronic autoimmune thrombocytopenic purpura (AITP) refractory to high-dose intravenous immunoglobulin (IVIgG) and/or oral prednisone were treated with one to three infusions of high-dose methylprednisolone (HDMP) (15 mg/kg/day). The mean platelet count before treatment was 12 +/- 10 x 10(9)/...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830480416
更新日期:1995-04-01 00:00:00
abstract::Immunoglobulin light-chain amyloidosis (AL) is a rare disorder characterized by production of a monoclonal light chain. This insoluble light chain, or a fragment thereof, deposits in tissues as amyloid and results in disruption of organ function and, ultimately, in death. Although melphalan and prednisone are benefici...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1096-8652(199906)61:2<115::aid-ajh7>
更新日期:1999-06-01 00:00:00
abstract::Duvelisib (IPI-145), an oral, dual inhibitor of phosphoinositide-3-kinase (PI3K)-δ and -γ, was evaluated in a Phase 1 study in advanced hematologic malignancies, which included expansion cohorts in relapsed/refractory (RR) chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and treatment-naïve (TN) CLL...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.25243
更新日期:2018-11-01 00:00:00
abstract::A 74-year old woman with Ph1-negative chronic myelogenous leukemia (CML) and heterozygous for glucose-6-phosphate dehydrogenase (G6PD) was studied. Both A and B types of G6PD were found in skin. In contrast, white blood cells and platelets showed only a single G6PD type A. These results provide further evidence that P...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830170113
更新日期:1984-07-01 00:00:00
abstract::Five adult SS patients from Qatar, Turkey, and South Africa with mild disease, had greatly elevated Hb F and specific patterns of polymorphic sites on their beta S chromosomes. One subject had an alpha-thalassemia (-alpha/-alpha). The haplotypes were the common type #19, associated with severe disease, and type #31, n...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200313
更新日期:1985-11-01 00:00:00
abstract::Fifty-six adult patients with newly diagnosed acquired severe aplastic anemia (SAA) received horse antilymphocyte globulin (ALG), cyclosporin A (CyA), methylprednisolone (Mpred), granulocyte colony-stimulating factor (G-CSF) as first-line therapy. The median age was 34 (range, 17-72) and median neutrophil count 0.280 ...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章
doi:10.1002/ajh.20954
更新日期:2007-09-01 00:00:00
abstract::A small number of thromboembolic events, including deep venous thrombosis and myocardial infarction, have been reported in patients receiving IVIG. These events have primarily occurred in patients receiving high-dose IVIG and have been attributed to an increase in blood viscosity. To test the hypothesis that a procoag...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/1096-8652(200009)65:1<30::aid-ajh5>3.0.co;
更新日期:2000-09-01 00:00:00
abstract::Acute leukemias of ambiguous lineage (ALAL) comprise acute undifferentiated leukemias (AUL) and mixed-phenotype acute leukemias (MPAL). In the revised fourth edition of the World Health Organization (WHO) classification provided further refinements to the diagnostic criteria for ALAL. Molecular characterization of MPA...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25771
更新日期:2020-06-01 00:00:00
abstract::We report the clinical, molecular, and immunohistological findings of 20 Chinese patients with mantle cell lymphoma diagnosed over a 10-year period. The disease affected mainly elderly patients (median age, 65.5 years) with a male predominance (M/F, 3/1). Eighty percent presented with advanced stage III/IV disease but...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199812)59:4<295::aid-ajh5>
更新日期:1998-12-01 00:00:00
abstract::The ability of circulating progenitor cells to develop erythroid colonies was studied in vitro in the presence or absence of growth factors (5637-CM and erythropoietin) in 63 patients with sickle cell disease (SCD) (36 homozygotes for hemoglobin [Hb] S, 13 double heterozygotes for Hb S and beta thalassemia, and 14 SC ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199905)61:1<40::aid-ajh8>3
更新日期:1999-05-01 00:00:00
abstract::In thalassemia, fetal hemoglobin (HbF) augmentation with hydroxycarbamide (also known as hydroxyurea) is not always successful. The expected parallel effects on red cell (RBC) membrane deformability, cell hydration, and membrane phospholipid organization, all important for extending RBC life span and increasing Hb, ha...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21266
更新日期:2008-11-01 00:00:00
abstract::Retroviral-mediated gene transfer into hematopoietic stem cells provides the only means of stable transduction of these cells and their progeny for use with a variety of potentially therapeutic genes. Expression of the Moloney amphotropic retroviral receptor-pit-2 or GLVR-2-is critical to the recognition and entry of ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199908)61:4<243::aid-ajh4>
更新日期:1999-08-01 00:00:00
abstract::With the emerging success of treating CD19 expressing B cell malignancies with ex vivo modified, autologous T cells that express CD19-directed chimeric antigen receptors (CAR), there is intense interest in expanding this evolving technology to develop effective modalities to treat other malignancies including solid tu...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24794
更新日期:2017-09-01 00:00:00
abstract::Selective labeling of phagocytes in human blood can be achieved by incubation of unseparated, heparinized blood with 99mTc-sulfur colloid. We have developed a method for quantitation of granulocyte chemotaxis using granulocytes labeled by this technique. The method was found to be more accurate and less tedious to per...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830030402
更新日期:1977-01-01 00:00:00
abstract::Several parameters may predict disease severity and overall survival in chronic lymphocytic leukemia (CLL). The purpose of our study of 190 CLL patients was to compare immunoglobulin heavy chain variable region (IgV(H)) mutation status, cytogenetic abnormalities, and leukemia cell CD38 and Zap-70 to older, traditional...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20987
更新日期:2007-12-01 00:00:00
abstract::Patients with MM are at an increased risk for life-threatening bacterial infections, primarily by organisms that require opsonization for interaction with granulocytes. In the present study we used a neutrophil chemiluminescence (CL) assay of opsonization to explore the opsonic activity of MM-Ig for zymosan particles....
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830110403
更新日期:1981-12-01 00:00:00
abstract::Unprecedented advances in our understanding of the pathobiology, prognostication, and therapeutic options in mantle cell lymphoma (MCL) have taken place in the last few years. Heterogeneity in the clinical course of MCL-indolent vs aggressive-is further delineated by a correlation with the mutational status of the var...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.25487
更新日期:2019-06-01 00:00:00