Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Universidade de Lisb...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
addClaim

Influência da variabilidade genética nos níveis da hemoglobina fetal

Authors: Marques, Irene Carolina Fontes;

Influência da variabilidade genética nos níveis da hemoglobina fetal

Abstract

A anemia falciforme (SCD) é a hemoglobinopatia mais frequente no mundo. É uma doença tipicamente mendeliana, com um único polimorfismo (SNP) na sua origem, que provoca uma alteração estrutural na hemoglobina (Hb), originando a HbS, Hbα2β2 6Glu -> Val. Contudo, a SCD é uma doença pleiotrópica e com quadros clínicos muito heterogéneos que têm por base fatores moduladores ambientais e genéticos. Os mais relevantes são o nível de Hb fetal (HbF) e a associação com alelos da talassémia α. O estudo destes fatores tem particular interesse para o prognóstico dos doentes, para a possibilidade de tratamento farmacológico personalizado e para o possível surgimento de novas formas de tratamento para a SCD e restantes hemoglobinopatias num futuro próximo. Neste trabalho é feita a revisão da SCD, de influência da variabilidade genética no nível da HbF e o estudo do rs4671393 numa população pediátrica angolana, caracterizada anteriormente com eletroforese de Hbs. O SNP em causa varia entre as bases A/G: A é o alelo com efeito modulador positivo nos níveis de HbF; G é o alelo sem efeito. A frequência do alelo modulador na população foi de 30,17%, contudo a sua relação com os níveis de HbF não apresentaram um valor estatisticamente significativo (p>0,05).

Sickle cell anemia (SCD) is the most frequent hemoglobinopathy spread worldwide. It is a typically mendelian disease with a single polymorphism (SNP) at its origin which causes a structural change in hemoglobin (Hb), Hbα2β2Glu->Val, resulting in HbS However, SCD is a pleiotropic disease and has very heterogeneous clinical features which are based on environmental and genetic modulators. The most relevant is fetal Hb (HbF) level and the association with α thalassemia alleles. The study of these factors is of particular interest for: patient prognosis; personalized pharmaceutical treatments; finding out new therapies for SCD and other hemoglobinopathies in the near future. This work is a review of SCD, the influence of genetic variability on HbF level and the study of rs4671393 in a pediatric population from Angolan previously characterized with Hbs electrophoresis. This SNP varies between bases A / G: A is associated with positive modulating effect on Hb levels; G is the none effect allele. The frequency of the effect allele for this population was 30.17% but it’s correlation with HbF levels did not present a statistically significant value (p> 0.05).

Trabalho Final de Mestrado Integrado, Ciências Farmacêuticas, Universidade de Lisboa, Faculdade de Farmácia, 2016

Country
Portugal
Related Organizations
Keywords

Ciências da Saúde, Fatores moduladores, Anemia falciforme, Hemoglobina fetal, rs4671393, Mestrado Integrado - 2016, Polimorfismo

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!