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Association between a frequent variant of the FTO gene and anthropometric phenotypes in Brazilian children.


ABSTRACT: Our goal was to analyze the association of the fat mass and obesity- associated (FTO) gene rs9939609 variant (T/A) with the anthropometric and dietary intake phenotypes related to obesity in Brazilian children.We analyzed the association of this single nucleotide polymorphism (SNP) with phenotypes related to the accumulation of body mass in a cohort of 348 children followed from the time of birth until 8 years old and then replicated the main findings in an independent schoolchildren sample (n = 615).At the age of 4, we observed a significant association between the A/A genotype and a higher mean BMI Z-score (P = 0.036). At the age of 8, the A/A individuals still presented with a higher BMI Z-score (P = 0.011) and with marginal differences in the volume of subcutaneous fat (P = 0.048). We replicated these findings in the schoolchildren sample, which showed that those with at least one copy of the A allele presented with a higher BMI Z-score (P = 0.029) and volume of subcutaneous fat (P = 0.016).Our results indicate that this FTO variant is associated with increased body mass and subcutaneous fat in Brazilian children beginning at the age of 4.

SUBMITTER: da Silva CF 

PROVIDER: S-EPMC3662589 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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Association between a frequent variant of the FTO gene and anthropometric phenotypes in Brazilian children.

da Silva Carmela Farias CF   Zandoná Marília Remuzzi MR   Vitolo Márcia Regina MR   Campagnolo Paula Dal Bó PD   Rotta Liane Nanci LN   Almeida Silvana S   Mattevi Vanessa Suñé VS  

BMC medical genetics 20130313


<h4>Background</h4>Our goal was to analyze the association of the fat mass and obesity- associated (FTO) gene rs9939609 variant (T/A) with the anthropometric and dietary intake phenotypes related to obesity in Brazilian children.<h4>Methods</h4>We analyzed the association of this single nucleotide polymorphism (SNP) with phenotypes related to the accumulation of body mass in a cohort of 348 children followed from the time of birth until 8 years old and then replicated the main findings in an ind  ...[more]

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