alexa Genetic predisposition, dietary restraint and disinhibition in relation to short and long-term weight loss.
Biochemistry

Biochemistry

Bioenergetics: Open Access

Author(s): Verhoef SP, Camps SG, Bouwman FG, Mariman EC, Westerterp KR

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Abstract BACKGROUND: Interindividual differences in response to weight loss and maintenance thereafter are ascribed to genetic predisposition and behavioral changes. OBJECTIVE: To examine whether body weight and short and long-term body weight loss were affected by candidate single nucleotide polymorphisms (SNPs) and changes in eating behavior or by an interaction between these genetic and behavioral factors. METHODS: 150 healthy subjects (39 males, 111 females) aged 20-50 y with a BMI of 27-38 kg/m(2) followed a very low energy diet for 8-weeks, followed by a 3-month weight maintenance period. SNPs were selected from six candidate genes: ADRB2, FTO, MC4R, PPARG, PPARD, and PPARGC1A. Changes in eating behavior were determined with the Three Factor Eating Questionnaire. RESULTS: A high genetic predisposition score was associated with a high body weight at baseline and more short-term weight loss. From the six selected obesity-related SNPs, FTO was associated with increased body weight at baseline, and the effect allele of PPARGC1A was positively associated with short-term weight loss, when assessed for each SNP separately. Long-term weight loss was associated with a larger increase in dietary restraint and larger decrease in disinhibition. CONCLUSION: During long-term weight loss, genetic effects are dominated by changes in eating behavior. Copyright © 2014 Elsevier Inc. All rights reserved. This article was published in Physiol Behav and referenced in Bioenergetics: Open Access

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