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Unravelling the role and mechanism of adipokine and gastrointestinal signals in animal models in the nonhomeostatic control of energy homeostasis: Implications for binge eating disorder

M. G. Novelle,C. Diéguez

Published 2018 in European eating disorders review

ABSTRACT

Central and peripheral signals regulating energy homeostasis interact tightly with neuronal pathways to modulate the hedonic component of food intake. Dysregulation of these interactions could explain the development of binge eating disorder (BED) and/or obesity and the increasing incidence of food addiction. In this review, we have highlighted the crucial role of peripheral hormones, such as leptin and ghrelin, among others, in these nonhomeostatic pathways. We have also emphasised the relevance of central cannabinoid pathway and lateral hypothalamus, with orexin and melanin-concentrating hormone neurons, as the critical hub controlling motivation and reward. Throughout the manuscript, we have focused on mechanisms learned from animal models of BED/food addiction in order to understand how these peripheral signals can modulate the motivation to eat. Understanding these mechanisms could help us to develop new treatment options for BED and/or obesity.

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