T Reinehr1, A Hinney, A M Toschke, J Hebebrand. 1. Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Dr F Steiner Strasse 5, 45711 Datteln, Germany. T.Reinehr@kinderklinik-datteln.de
Abstract
OBJECTIVE: Obesity is considered a polygenic and multifactorial disorder and different single nucleotide polymorphisms (SNP) are involved. Studies concerning their impact on weight loss in lifestyle intervention are scarce. METHODS: The effect of two different SNP (INSIG2: rs7566605, FTO: rs9939609) was analysed on the change of weight status in a one-year lifestyle intervention among 280 overweight children (mean age 10.8 years, mean body mass index (BMI) 28.1 kg/m(2)). RESULTS: The children reduced their mean SDS-BMI by -0.28 (95% CI -0.32 to -0.23). Modelling the impact of different genotypes and their statistical interactions on SDS-BMI change adjusting for age, gender and baseline BMI or SDS-BMI, respectively, revealed that the combination of the CC genotype in INSIG2 and the AA genotype in FTO was significantly associated with the lowest degree of overweight reduction, but even with an increase in overweight (SDS-BMI change +0.51; 95% CI 0.22 to 0.79). CONCLUSIONS: These findings provide some evidence that the effects of different genotypes aggravate each other concerning weight change.
OBJECTIVE: Obesity is considered a polygenic and multifactorial disorder and different single nucleotide polymorphisms (SNP) are involved. Studies concerning their impact on weight loss in lifestyle intervention are scarce. METHODS: The effect of two different SNP (INSIG2: rs7566605, FTO: rs9939609) was analysed on the change of weight status in a one-year lifestyle intervention among 280 overweight children (mean age 10.8 years, mean body mass index (BMI) 28.1 kg/m(2)). RESULTS: The children reduced their mean SDS-BMI by -0.28 (95% CI -0.32 to -0.23). Modelling the impact of different genotypes and their statistical interactions on SDS-BMI change adjusting for age, gender and baseline BMI or SDS-BMI, respectively, revealed that the combination of the CC genotype in INSIG2 and the AA genotype in FTO was significantly associated with the lowest degree of overweight reduction, but even with an increase in overweight (SDS-BMI change +0.51; 95% CI 0.22 to 0.79). CONCLUSIONS: These findings provide some evidence that the effects of different genotypes aggravate each other concerning weight change.
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Authors: Iris M Heid; Cornelia Huth; Ruth J F Loos; Florian Kronenberg; Vera Adamkova; Sonia S Anand; Kristin Ardlie; Heike Biebermann; Peter Bjerregaard; Heiner Boeing; Claude Bouchard; Marina Ciullo; Jackie A Cooper; Dolores Corella; Christian Dina; James C Engert; Eva Fisher; Francesc Francès; Philippe Froguel; Johannes Hebebrand; Robert A Hegele; Anke Hinney; Margret R Hoehe; Frank B Hu; Jaroslav A Hubacek; Steve E Humphries; Steven C Hunt; Thomas Illig; Marjo-Riita Järvelin; Marika Kaakinen; Barbara Kollerits; Heiko Krude; Jitender Kumar; Leslie A Lange; Birgit Langer; Shengxu Li; Andreas Luchner; Helen N Lyon; David Meyre; Karen L Mohlke; Vincent Mooser; Almut Nebel; Thuy Trang Nguyen; Bernhard Paulweber; Louis Perusse; Lu Qi; Tuomo Rankinen; Dieter Rosskopf; Stefan Schreiber; Shantanu Sengupta; Rossella Sorice; Anita Suk; Gudmar Thorleifsson; Unnur Thorsteinsdottir; Henry Völzke; Karani S Vimaleswaran; Nicholas J Wareham; Dawn Waterworth; Salim Yusuf; Cecilia Lindgren; Mark I McCarthy; Christoph Lange; Joel N Hirschhorn; Nan Laird; H-Erich Wichmann Journal: PLoS Genet Date: 2009-10-23 Impact factor: 5.917