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Article Dans Une Revue International Journal of Pediatric Obesity Année : 2019

Association between genetic obesity susceptibility and mother-reported eating behavior in children up to 5 years

Résumé

BACKGROUND: Many genetic polymorphisms identified by genome-wide association studies for adult body mass index (BMI) have been suggested to regulate food intake. OBJECTIVE: The objective was to study the associations between a genetic obesity risk score, appetitive traits, and growth of children up to age 5 years, with a longitudinal design. METHODS: In 1142 children from the Etude des Déterminants pre et post natals de la santé de l'ENfant (EDEN) birth cohort, a combined obesity risk-allele score (BMI genetic risk score [GRS]) was related to appetitive traits (energy intake up to 12 mo, a single item on appetite from 4 mo to 3 y, a validated appetite score at 5 y) using Poisson regressions with robust standard errors. The potential mediation of appetitive traits on the association between BMI-GRS and growth was assessed by the Sobel test. RESULTS: Children with a high BMI-GRS were more likely to have high energy intake at 1 year and high appetite at 2 and 5 years. High energy intake in infancy and high appetite from 1 year were related to higher subsequent BMI. High 2-year appetite seemed to partially mediate the associations between BMI-GRS and BMI from 2 to 5 years (all P ≤ 0.05). CONCLUSIONS: Genetic susceptibility to childhood obesity seems to be partially explained by appetitive traits in infancy, followed by an early childhood rise in BMI.
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Dates et versions

inserm-02093066 , version 1 (08-04-2019)

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Blandine de Lauzon-Guillain, Yves Akoli Koudou, Jérémie Botton, Anne Forhan, Sophie Carles, et al.. Association between genetic obesity susceptibility and mother-reported eating behavior in children up to 5 years: genetic obesity risk and child’s eating behavior. International Journal of Pediatric Obesity, 2019, 14 (5), pp.e12496. ⟨10.1111/ijpo.12496⟩. ⟨inserm-02093066⟩
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