Association between dopamine genes, adiposity, food addiction, and eating behavior in Chilean adult
Abstract Background: A frequent consumption of high sugar/fat foods can affect dopamine signaling in the brain and cause sustained stimulation of the reward system. It has been hypothesized that a hypodopaminergic trait results in an individual overeating in order to increase brain DA. Genetic variants in this route have been connected with addiction and eating […]
Año 2024
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Año 2019
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Visita año 2024
El año 2024 se realizó el segundo seminario internacional de conducta alimentaria, luego de 5 años. En esta oportunidad la red se ha visto fortalecida y se han sumado investigadores de España. Se presentaron nuevos estudios desarrollados por científicos de la Universidad de Navarra relacionados con el microbioma y conducta alimentarias.Desde Chile se mostraron los […]
Visita de investigadores 2019
El año 2019 se realizó el primer seminario internacional de conducta alimentaria. En esta ocasión se invitaron a científicos extranjeros y nacionales. Desde Canadá nos visto el Dr Gary Goldfield quien dicto la ponencia Obesidad infantil, refuerzo alimentario e impulsividad. Además, la Dra. Clare Llewellyn y Dra. Andrea Smith de Reino Unido nos hablaron de […]
Validation of the baby eating behaviour questionnaire in a Chilean population
Eating behaviors traits are present from early infancy and are associated with a greater risk for obesity in childhood. The Baby Eating Behaviour Questionnaire (BEBQ) is a tool developed to measure eating behavior in infants. The aim of this study was to (i) translate, (ii) culturally adapt, and (iii) evaluate the psychometric properties of the […]
Genetic variation of the dopamine D2 receptor gene: association with the reinforcing value of food and eating in the absence of hunger in Chilean children
Obregón AM, Valladares Vega MA, Goldfield G, Llewellyn C. Nutr Hosp. 2020 Jul 13;34(3):524-533. doi: 10.20960/nh.02897. Background: food is a powerful reinforcer that motivates people to eat. The TaqI A1 polymorphism (rs1800497; T>C) downstream of the dopamine D2 receptor (DRD2) gene has been associated with diminished DRD2 receptor density, higher food reinforcement, and impaired eating […]
Association of the melanocortin 4 receptor gene rs17782313 polymorphism with rewarding value of food and eating behavior in Chilean children
Studies conducted in monozygotic and dizygotic twins have established a strong genetic component in eating behavior. Rare mutations and common variants of the melanocortin 4 receptor (MC4R) gene have been linked to obesity and eating behavior scores. However, few studies have assessed common variants in MC4R gene with the rewarding value of food in children. […]
Association of the dopamine D2 receptor rs1800497 polymorphism and eating behavior in Chilean children
Objectives: Studies have established a strong genetic component in eating behavior. The TaqI A1 polymorphism (rs1800497) has previously been associated with obesity and eating behavior. Additionally, this polymorphism has been associated with diminished dopamine D2 receptor (DRD2) density, higher body mass, and food reinforcement. The aim of this study was to evaluate the association between the […]
Effects of fat mass and obesity-associated (FTO) gene polymorphisms on binge eating in women with binge-eating disorder: The moderating influence of attachment style
Cameron JD, Tasca GA, Little J, Chyurlia L, Ritchie K, Yeh E, Doucette S, Obregon AM, Bulman DE, Doucet É, Goldfield GS. Nutrition. 2019 May;61:208-212. doi: 10.1016/j.nut.2018.11.006. Epub 2018 Nov Objectives: The genetics of binge-eating disorder (BED) is an emerging topic and one candidate pathway, namely the fat mass and obesity-associated (FTO) gene, may be […]