FTO variant rs9939609 is associated with body mass index and waist circumference, but not with energy intake or physical activity in European- and African-American youth.

Hdl Handle:
http://hdl.handle.net/10675.2/40
Title:
FTO variant rs9939609 is associated with body mass index and waist circumference, but not with energy intake or physical activity in European- and African-American youth.
Authors:
Liu, Gaifen; Zhu, Haidong; Lagou, Vasiliki; Gutin, Bernard; Stallmann-Jorgensen, Inger S; Treiber, Frank A.; Dong, Yanbin; Snieder, Harold
Abstract:
BACKGROUND: Genome-wide association studies found common variants in the fat mass and obesity-associated (FTO) gene associated with adiposity in Caucasians and Asians but the association was not confirmed in African populations. Association of FTO variants with insulin resistance and energy intake showed inconsistent results in previous studies. This study aimed to assess the influence of FTO variant rs9939609 on adiposity, insulin resistance, energy intake and physical activity in European - (EA) and African-American (AA) youth. METHODS: We conducted a cross-sectional study in EA and AA youths. One thousand, nine hundred and seventy-eight youths (48.2% EAs, 47.1% male, mean age 16.5 years) had measures of anthropometry. Percent body fat (%BF) was measured by dual-energy X-ray absorptiometry, visceral adipose tissue (VAT) and subcutaneous abdominal adipose tissue (SAAT) by magnetic resonance imaging. Energy intake and physical activity were based on self report from up to 7 24-hour recalls. Physical activity was also measured by accelerometry. RESULTS: FTO rs9939609 was significantly associated with body mass index (BMI) (P = 0.01), weight (P = 0.03) and waist circumference (P = 0.04), with per-allele effects of 0.4 kg/m2, 1.3 kg and 0.8 cm, respectively. No significant association was found between rs9939609 and %BF, VAT, SAAT or insulin resistance (P > 0.05), or between rs9939609 and energy intake or vigorous physical activity (P > 0.05). No significant interactions of rs9939609 with ethnicity, gender, energy intake or physical activity were observed (P > 0.05). CONCLUSIONS: The FTO variant rs9939609 is modestly associated with BMI and waist circumference, but not with energy intake or physical activity. Moreover, these effects were similar for EAs and AAs. Improved understanding of the effect of the FTO variant will offer new insights into the etiology of excess adiposity.
Citation:
BMC Med Genet. 2010 Apr 9; 11:57
Issue Date:
5-May-2010
URI:
http://hdl.handle.net/10675.2/40
DOI:
10.1186/1471-2350-11-57
PubMed ID:
20377915
PubMed Central ID:
PMC2864242
Type:
Journal Article; Research Support, N.I.H., Extramural
ISSN:
1471-2350
Appears in Collections:
Georgia Prevention Center: Faculty Research and Presentations

Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Gaifenen_US
dc.contributor.authorZhu, Haidongen_US
dc.contributor.authorLagou, Vasilikien_US
dc.contributor.authorGutin, Bernarden_US
dc.contributor.authorStallmann-Jorgensen, Inger Sen_US
dc.contributor.authorTreiber, Frank A.en_US
dc.contributor.authorDong, Yanbinen_US
dc.contributor.authorSnieder, Harolden_US
dc.date.accessioned2010-09-24T21:20:20Z-
dc.date.available2010-09-24T21:20:20Z-
dc.date.issued2010-05-05en_US
dc.identifier.citationBMC Med Genet. 2010 Apr 9; 11:57en_US
dc.identifier.issn1471-2350en_US
dc.identifier.pmid20377915en_US
dc.identifier.doi10.1186/1471-2350-11-57en_US
dc.identifier.urihttp://hdl.handle.net/10675.2/40-
dc.description.abstractBACKGROUND: Genome-wide association studies found common variants in the fat mass and obesity-associated (FTO) gene associated with adiposity in Caucasians and Asians but the association was not confirmed in African populations. Association of FTO variants with insulin resistance and energy intake showed inconsistent results in previous studies. This study aimed to assess the influence of FTO variant rs9939609 on adiposity, insulin resistance, energy intake and physical activity in European - (EA) and African-American (AA) youth. METHODS: We conducted a cross-sectional study in EA and AA youths. One thousand, nine hundred and seventy-eight youths (48.2% EAs, 47.1% male, mean age 16.5 years) had measures of anthropometry. Percent body fat (%BF) was measured by dual-energy X-ray absorptiometry, visceral adipose tissue (VAT) and subcutaneous abdominal adipose tissue (SAAT) by magnetic resonance imaging. Energy intake and physical activity were based on self report from up to 7 24-hour recalls. Physical activity was also measured by accelerometry. RESULTS: FTO rs9939609 was significantly associated with body mass index (BMI) (P = 0.01), weight (P = 0.03) and waist circumference (P = 0.04), with per-allele effects of 0.4 kg/m2, 1.3 kg and 0.8 cm, respectively. No significant association was found between rs9939609 and %BF, VAT, SAAT or insulin resistance (P > 0.05), or between rs9939609 and energy intake or vigorous physical activity (P > 0.05). No significant interactions of rs9939609 with ethnicity, gender, energy intake or physical activity were observed (P > 0.05). CONCLUSIONS: The FTO variant rs9939609 is modestly associated with BMI and waist circumference, but not with energy intake or physical activity. Moreover, these effects were similar for EAs and AAs. Improved understanding of the effect of the FTO variant will offer new insights into the etiology of excess adiposity.en_US
dc.rightsThe PMC Open Access Subset is a relatively small part of the total collection of articles in PMC. Articles in the PMC Open Access Subset are still protected by copyright, but are made available under a Creative Commons or similar license that generally allows more liberal redistribution and reuse than a traditional copyrighted work. Please refer to the license statement in each article for specific terms of use. The license terms are not identical for all articles in this subset.en_US
dc.subject.meshAfrican Americansen_US
dc.subject.meshBody Mass Indexen_US
dc.subject.meshChilden_US
dc.subject.meshEnergy Intake / geneticsen_US
dc.subject.meshEuropean Continental Ancestry Groupen_US
dc.subject.meshFemaleen_US
dc.subject.meshGenome-Wide Association Studyen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMotor Activity / geneticsen_US
dc.subject.meshPolymorphism, Geneticen_US
dc.subject.meshProteins / genetics / physiologyen_US
dc.subject.meshWaist Circumference / geneticsen_US
dc.titleFTO variant rs9939609 is associated with body mass index and waist circumference, but not with energy intake or physical activity in European- and African-American youth.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, N.I.H., Extramuralen_US
dc.identifier.pmcidPMC2864242en_US
dc.contributor.corporatenameGeorgia Institute for Prevention of Human Diseases and Accidentsen_US

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