Journal
DIABETES
Volume 53, Issue 9, Pages 2483-2486Publisher
AMER DIABETES ASSOC
DOI: 10.2337/diabetes.53.9.2483
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- Medical Research Council [G0000477] Funding Source: Medline
- Medical Research Council [G0000477] Funding Source: researchfish
- MRC [G0000477] Funding Source: UKRI
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Positional candidate gene analysis of the obesity-linked chromosome Xq24 locus identified two obesity-associated single nucleotide polymorphisms (SNPs) in the membrane amino acid transporter encoding the SLC6A14 (solute carrier family 6 [neurotransmitter transporter], member 14) gene in the Finnish population. Since we previously reported a modest evidence of linkage for this region in French obese families, we analyzed these SNPs in 1,267 obese adult case and 649 lean control subjects. SNPs 20649 C>T (odds ratio 1.23, 95% CI 1.04-1.45; P=0.013) and 22510 C>G (1.36, 1.16-1.59; P=0.0001) were shown to be associated with obesity in the French population. In addition, pedigree disequilibrium test results showed a modest excess of both at-risk SNP alleles in affected offspring (P=0.05 and P=0.08 for SNPs 20649 C>T and 22510 C>G, respectively). The SNP 22510 C>G at-risk G allele was associated, both in adult women with moderate obesity and in 234 obese girls, with higher body fat and modified perception of hunger and satiety (0.003 <0.06). In conclusion, these data confirm an association of the SLC6A14 gene locus with obesity.
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