Erythropoiesis
Mostrando 13-24 de 306 artigos, teses e dissertações.
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13. Consumo dietÃtico de ferro como fator preditivo das reservas corporais do mineral, transferrinemia e eritropoiese em prÃ-escolares de creches pÃblicas do Recife-PE
Backgound: Iron deficiency and its consequent anaemia is a major public health concern worldwide, affecting mainly children. Dietary factors seem to play an important role on the genesis of anaemia. Objective: to assess dietary iron intake and enhancers and inhibitors of iron bioavailability, as a predictor of iron status among preschoolers attending public
Publicado em: 2007
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14. Anemia in cancer patients: inflammatory activity in erythropoiesis and iron metabolism / Anemia em pacientes com cancer : papel da atividade inflamatoria sobre a eritropoiese e metabolismo do ferro
Os pacientes com câncer podem apresentar diversas anormalidades hematológicas, sendo a anemia a alteração mais comum. A etiologia da anemia é multifatorial, envolvendo mecanismos que podem estar relacionados ou não à doença (perda de sangue, hemólise, infiltração medular), ao tipo e estágio do tumor e também à terapêutica utilizada (radioterap
Publicado em: 2007
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15. Erythrovirus B19 infection in acquired immunodeficiency syndrome: screening by histopathology, immunohistochemistry, and in situ hybridization
Erythrovirus B19 infects erythrocytic progenitors, transiently interrupting erythropoiesis. In AIDS patients it causes chronic anemia amenable to treatment. We looked for evidences of B19 infection in stored bone marrow material from patients with acquired immunodeficiency syndrome. Histological sections were made from stored paraffin blocks from 33 autopsie
Memórias do Instituto Oswaldo Cruz. Publicado em: 2006-06
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16. Fatores geneticos moduladores da gravidade clinica nas Beta-talassemias : o exemplo da proteina AHSP (Alpha Hemoglobin Stabilizing Protein)
Alpha-hemoglobin stabilizing protein (AHSP) is an erythroid-specific molecular chaperone that binds the cx-chains of hemoglobin, preventing their precipitation and deleterious effects. Loss of AHSP exacerbates a-globin precipitation and anemia in a murine model for p-thalassemia. In vitro, recombinant AHSP inhibits the production of reactive oxygen species (
Publicado em: 2006
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17. Recombinant human erythropoietin in sports: a review
Erythropoietin is an endogenous hormone of glicoproteic nature secreted by the kidneys and is the main regulator of the erythropoiesis. An alteration in its production generates a disturbance in the plasmatic concentration giving rise to several types of pathologies related to the hematopoietic system. The recombinant forms of erythropoietin have indiscrimin
Rev Bras Med Esporte. Publicado em: 2003-06
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18. ParÃmetros de avaliaÃÃo do estado nutricional de ferro em crianÃas menores de 5 anos de creches pÃblicas da cidade do Recife-PE
The purpose of this descriptive study was to evaluate the iron deficiency and the diagnostic accuracy of iron parameters in children from 2 to 5 years old, attending public day care centers in the city of Recife-Brazil, in 1999. The sample, chosen by aleatory systematic technique, consisted of 162 children of both sexes. The iron status was evaluated by hemo
Publicado em: 2003
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19. Receptor soluvel da transferrina e parametros reticulocitarios na beta talassemia heterozigota e na anemia ferropriva
The soluble fonn of transferrin receptor (sTfR) has been pointed as an useful parameter to assess the iron status and erythropoiesis activity. Immature reticulocytes present high sTfR concentration. We tested the correlation between sTfR and reticulocyte parameters in iron deficiency anemia (IDA) and P thalassemia heterozygous (P thal hetero) patients. Labor
Publicado em: 2001
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20. Reticulocitos imaturos como preditores precoces do sucesso do enxertamento no transplante de medula ossea alogenico e autologo
Introduction: Reticulocyte counts and immature reticulocyte fraction have shown to be adequate in the evaluation of erythropoiesis after bone marrow transplantation (BMT). The purpose of this study was to evaluate reticulocyte parameters by means of flow cytometric reticulocyte counting in a group of patients who had undergone autologous and allogeneic BMT.
Publicado em: 2001
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21. Stimulation of Mammalian Erythropoiesis by 5β-H Steroid Metabolites*
The effects of a number of steroid compounds on erythropoiesis in normal and polycythemic mice were examined. Of the steroids that stimulated erythropoiesis, the hormone testosterone and certain 5β-H C19 and C21 nonhormonal metabolites were the most effective. Anti-erythropoietin abolished the erythropoiesis-stimulating effects of testosterone but not those
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22. Role of ineffective erythropoiesis in the anaemia of rheumatoid arthritis.
The importance of inadequate haemoglobin synthesis and ineffective erythropoiesis in the anaemia of rheumatoid arthritis was studied by measuring the incorporation of 15N glycine into haemoglobin haem and early labelled bilirubin in a patient with severe anaemia before and after response to gold therapy. Initially, total erythroid haem turnover was decreased
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23. Insulin-like growth factor I stimulates erythropoiesis in hypophysectomized rats.
Stimulation of erythropoiesis during growth is necessary to ensure proportionality between erythrocyte mass and body mass. However, the way by which erythrocyte formation is adapted to body growth is still unknown. Growth arrest in hypophysectomized rats is accompanied by decreased erythropoiesis. We have, therefore, examined whether insulin-like growth fact
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24. Effects of azathioprine on response of renal anaemia to subcutaneous recombinant human erythropoietin.
AIMS: To determine the effect of concomitant azathioprine treatment on the response of patients with renal failure to treatment with subcutaneous recombinant human erythropoietin (r-HuEPO). METHODS: Two groups of patients with renal failure not receiving haemodialysis were studied. One comprised seven patients receiving erythropoietin alone, the second consi