Fetal Hemoglobin
Mostrando 13-24 de 197 artigos, teses e dissertações.
-
13. Evolução hematológica e do conteúdo de ferro em recém-nascidos de termo e pré-termo tardios, com e sem crescimento intrauterino restrito, durante os primeiros dois meses de vida / Hematological and iron content evolution in term and late pre-term newborns, with and without intrauterine growth restriction, during the first two months of life
Iron (Fe) acts in several metabolic processes, especially neurodevelopmental ones, which body content is still the difficult access and could be influenced by factors, such as, prematurity and Intrauterine Growth Restriction (IUGR). This study aimed at describing the hematological evolution and iron body content in Term (T) and Late Pre-Term (LPT) Newborns (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
-
14. Correlation of low levels of nitrite and high levels of fetal hemoglobin in patients with sickle cell disease at baseline
BACKGROUND: Sickle cell disease is a hemoglobinopathy characterized by hemolytic anemia, increased susceptibility to infections and recurrent vaso-occlusive crises that reduces the quality of life of sufferers. OBJECTIVE: To evaluate the correlation of the levels of lactate dehydrogenase, malonaldehyde and nitrite to fetal hemoglobin in patients with sickle
Rev. Bras. Hematol. Hemoter.. Publicado em: 2012
-
15. Estudo dos potenciais mecanismos moleculares relacionados à expressão gênica diferencial em portadores de persistência hereditária de hemoglobina fetal não delecional tipo brasileira / Study of potential molecular mechanisms related to differential gene expression in Brazilian type of hereditary persistence of fetal hemoglobin
Durante o desenvolvimento ontogenético, ocorrem alterações na expressão dos genes das globinas, caracterizando o switching de hemoglobina. Após o nascimento há o silenciamento do gene da globina ? concomitante à ativação do gene da globina ?. Todavia, algumas deleções gênicas no grupamento dos genes das globinas e algumas mutações de ponto no p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/10/2011
-
16. Novos híbridos derivados de hidroxiureia e talidomida induzem a produção de hemoglobina fetal e apresentam atividade anti-inflamatória / New hybrid derivates of hydroxyurea and thalidomide induce the production of fetal hemoglobin and have anti-inflammatory activity
A anemia falciforme (AF) é um distúrbio genético da hemoglobina causado por uma mutação de ponto no gene da beta-globina com consequente produção de hemoglobina S (HbS). A polimerização de HbS causa a deformação, enrijecimento e diminuição da flexibilidade das hemácias, resultando em uma série de eventos que levam a redução da sua vida médi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/09/2011
-
17. Avaliação funcional dos eosinófilos na anemia falciforme e o efeito do tratamento com hidroxiureia / Altered functional properties of eosinophils in sickle cell anemia and effects of hydroxyurea therapy
Sickle cell anemia is the homozygous state for hemoglobin S. Inflammation plays an important role in the vaso-occlusive process of the disease, where leukocytes, proinflammatory cytokines and adhesion molecules are increased in the peripheral blood of patients with sickle cell anemia. Leukocytosis is associated with morbidity and mortality in these patients.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
-
18. Duffy Genotype and Clinical Manifestations Severity in Sickle Cell Anemia / Genótipo Duffy e Gravidade das Manifestações Clínicas na Anemia Falciforme
INTRODUCTION: Sickle cell anemia (SCA) presents with large clinical variability and previous studies suggest that genetic polymorphisms may act as complications predictors. The Duffy antigen appears to play an important role in the removal of inflammatory chemokines from the circulation, suggesting that Duffy-Negative individuals have lower clearance of cyto
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2011
-
19. XmnI polymorphism frequency in heterozygote beta thalassemia subjects and its relation to Fetal hemoglobin levels
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011-12
-
20. What influences Hb fetal production in adulthood?
Human hemoglobin genes are located in α and β globin gene clusters in chromosomes 16 and 11, respectively. Different types of hemoglobin are synthesized according to the stage of development with fetal hemoglobin (α2γ2) (Hb F) being the main hemoglobin in the fetal period. After birth, there is a reduction (to about 1%) in Hb F levels and adult hemoglobi
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011-06
-
21. Patients with sickle cell disease taking hydroxyurea in the Hemocentro Regional de Montes Claros
BACKGROUND: The development of therapies for sickle cell disease has received special attention, particularly those that reduce the polymerization of hemoglobin S. Hydroxyurea is a commonly used medication because it has the ability to raise levels of fetal hemoglobin, decrease the frequency of vaso-occlusive episodes and thus improve the clinical course of
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011
-
22. Promoter region sequence differences in the A and G gamma globin genes of Brazilian sickle cell anemia patients
Fetal hemoglobin (HbF), encoded by the HBG2 and HBG1 genes, is the best-known genetic modulator of sickle cell anemia, varying dramatically in concentration in the blood of these patients. This variation is partially associated with polymorphisms located in the promoter region of the HBG2 and HBG1 genes. In order to explore known and unknown polymorphisms in
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-08
-
23. Detecção e caracterização molecular de talassemia alfa / Detection and molecular characterization of alpha thalassemia
A talassemia alfa é uma síndrome resultante de distúrbios na síntese da cadeia da globina alfa que formam o tetrâmero da molécula da hemoglobina. A talassemia alfa é classificada em quatro tipos de acordo com o número de genes alfa afetado: portador silencioso (-α/αα); traço alfa talassêmico (--/αα ou - α/-α); doe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2009
-
24. Haptoglobin genotypes in sickle cell disease / Genotipos da haptoglobina nas doenças falciformes
Oxidative stress, particularly in the endothelium, exerts a strong influence on the genesis of sickle cell disease (SCD) vasoocclusion and, consequently, on patients clinical evolution and survival. The pathophysiology of SCD is centered on the polymerization property of the desoxy-hemoglobin (Hb) S, but genetic factors can act as modulators of its clinical
Publicado em: 2009