A genome-wide association meta-analysis identifies new childhood obesity loci

JP Bradfield, Rob Taal, NJ Timpson, A Scherag, C Lecoeur, NM Warrington, E Hypponen, C Holst, B Valcarcel, E Thiering, RM Salem, FR Schumacher, DL Cousminer, PMA Sleiman, JH Zhao, RI Berkowitz, KS Vimaleswaran, I Jarick, CE Pennell, DM EvansB St Pourcain, DJ Berry, Dennis Mook, Bert Hofman, Fernando Rivadeneira, André Uitterlinden, Cornelia Duijn, Ralf Valk, Johan Jongste, DS Postma, DI Boomsma, WJ Gauderman, MT Hassanein, CM Lindgren, R Magi, CAG Boreham, CE Neville, LA Moreno, P Elliott, A Pouta, AL Hartikainen, MY Li, O Raitakari, T Lehtimaki, JG Eriksson, A Palotie, J Dallongeville, Suman Das, P Deloukas, G McMahon, SM Ring, JP Kemp, JL Buxton, AIF Blakemore, M Bustamante, Monica Guxens Junyent, JN Hirschhorn, MW Gillman, E Kreiner-Moller, H Bisgaard, FD Gilliland, J (Joachim) Heinrich, E Wheeler, I Barroso, S O'Rahilly, A Meirhaeghe, TIA Sorensen, C Power, LJ Palmer, A Hinney, E Widen, IS Farooqi, MI McCarthy, P Froguel, D Meyre, J Hebebrand, MR Jarvelin, Vincent Jaddoe, GD Smith, H Hakonarson, SFA Grant

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Abstract

Multiple genetic variants have been associated with adult obesity and a few with severe obesity in childhood; however, less progress has been made in establishing genetic influences on common early-onset obesity. We performed a North American, Australian and European collaborative meta-analysis of 14 studies consisting of 5,530 cases (>= 95th percentile of body mass index (BMI)) and 8,318 controls (<50th percentile of BMI) of European ancestry. Taking forward the eight newly discovered signals yielding association with P < 5 x 10(-6) in nine independent data sets (2,818 cases and 4,083 controls), we observed two loci that yielded genome-wide significant combined P values near OLFM4 at 13q14 (rs9568856; P = 1.82 x 10(-9); odds ratio (OR) = 1.22) and within HOXB5 at 17q21 (rs9299; P = 3.54 x 10(-9); OR = 1.14). Both loci continued to show association when two extreme childhood obesity cohorts were included (2,214 cases and 2,674 controls). These two loci also yielded directionally consistent associations in a previous metaanalysis of adult BMI1.
Original languageUndefined/Unknown
Pages (from-to)526-+
JournalNature Genetics
Volume44
Issue number5
DOIs
Publication statusPublished - 2012

Research programs

  • EMC MM-01-39-09-A
  • EMC MM-04-54-08-A
  • EMC NIHES-01-64-01
  • EMC NIHES-01-64-02
  • EMC OR-01-54-02

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