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dc.contributor.authorPereira, D.S.pt_BR
dc.contributor.authorGarcia, D.M.pt_BR
dc.contributor.authorNarciso, F.M.S.pt_BR
dc.contributor.authorSantos, M.L.A.S.pt_BR
dc.contributor.authorDias, J.M.D.pt_BR
dc.contributor.authorQueiroz, B.Z.pt_BR
dc.contributor.authorSouza, E.R.pt_BR
dc.contributor.authorNóbrega, O.T.pt_BR
dc.contributor.authorPereira, L.S.M.pt_BR
dc.identifier.citationBraz J Med Biol Res,v.44,n.2,p.123-129,2011pt_BR
dc.description.abstractWe investigated the effect of -174 G/C single-nucleotide polymorphism in the promoter region of the IL6 gene on plasma IL-6 levels and muscle strength, and the relationship between IL-6 levels and muscle strength in elderly women. The sample consisted of 199 elderly residents (73.0 ± 7.8 years old) from rest homes and the community in Belo Horizonte, MG, Brazil. -174 G/C polymorphism was determined by direct sequencing of the product by PCR, and plasma IL-6 concentrations were measured by ELISA. Muscle strength in the knee joint was evaluated using a Biodex System 3 Pro® isokinetic dynamometer. ANCOVA was used to determine the effect of polymorphism on IL-6 levels and muscle strength, and the Pearson correlation coefficient to assess the relationship between IL-6 levels and muscle strength. -174 G/C polymorphism was associated with the plasma IL-6 levels of elderly women (P < 0.01) since homozygotes for the G allele showed high IL-6 levels (GG 3.85 pg/mL, GC + CC 2.13 pg/mL). There was no association of polymorphism on muscle strength (P &gt; 0.05). No association was found between IL-6 levels and knee extensor muscle (r = 0.087, P = 0.306) or flexor (r = -0.011, P = 0.894) strength. An interaction between -174 G/C polymorphism and housing conditions of the sample of elderly women was identified, with the effect of genotype on IL-6 levels being higher in the institutionalized elderly. These results support the evidence that -174 G/C polymorphism of the IL6 gene associates with individual variability of plasma IL-6 levels in elderly women.pt_BR
dc.publisherAssociação Brasileira de Divulgação Científicapt_BR
dc.rightsAcesso Abertopt_BR
dc.titleEffects of 174 G/C polymorphism in the promoter region of the interleukin-6 gene on plasma IL-6 levels and muscle strength in elderly womenpt_BR
dc.subject.keywordMuscular strengthpt_BR
dc.subject.keyword174 G/C polymorphismpt_BR
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