VEGFA polymorphisms and cardiovascular anomalies in 22q11 microdeletion syndrome: a case-control and family-based study
Biol. Res
;
42(4): 461-468, 2009. tab
Artigo
em Inglês
| LILACS
| ID: lil-537105
ABSTRACT
Microdeletion 22q11 in humans causes velocardiofacial and DiGeorge syndromes. Most patients share a common 3Mb deletion, but the clinical manifestations are very heterogeneous. Congenital heart disease is present in 50-80 percent of patients and is a significant cause of morbidity and mortality. The phenotypic variability suggests the presence of modifiers. Polymorphisms in the VEGFA gene, coding for the vascular endothelial growth factor A, have been associated with non-syndromic congenital heart disease, as well as with the presence of cardiovascular anomalies in patients with microdeletion 22q11. We evaluated the association of VEGFA polymorphisms c.-2578C>A (rs699947), c.-1154G>A (rs1570360) and c.-634C>G (rs2010963) with congenital heart disease in Chilean patients with microdeletion 22q11. The study was performed using case-control and family-based association designs. We evaluated 122 patients with microdeletion 22q11 and known anatomy of the heart and great vessels, and their parents. Half the patients had congenital heart disease. We obtained no evidence of association by either method of analysis. Our results provide further evidence of the incomplete penetrance of the cardiovascular phenotype of microdeletion 22ql 1, but do not support association between VEGFA promoter polymorphisms and the presence of congenital heart disease in Chilean patients with this syndrome.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Polimorfismo Genético
/
Fator A de Crescimento do Endotélio Vascular
/
Síndrome de DiGeorge
/
Cardiopatias Congênitas
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
Limite:
Adolescente
/
Adulto
/
Criança
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Lactente
/
Masculino
/
Recém-Nascido
Idioma:
Inglês
Revista:
Biol. Res
Assunto da revista:
Biologia
Ano de publicação:
2009
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
Instituição/País de afiliação:
Clínica Alemana-Universidad del Desarrollo/CL
/
Complejo Hospitalario Dr. Sótero del Río/CL
/
Hospital Dr. Gustavo Fricke/CL
/
Hospital Dr. Luis Calvo Mackenna/CL
/
Universidad de Chile/CL
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