Journal
MOLECULAR AND CELLULAR ENDOCRINOLOGY
Volume 497, Issue -, Pages -Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2018.10.018
Keywords
Anorexia nervosa; Bulimia nervosa; Reward; Dopamine; Neuroendocrinology
Categories
Funding
- National Institute of Mental Health [F32 MH108311, R01 MH113588]
- Price Foundation
- Hilda and Preston Davis Foundation
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The pathophysiology of anorexia nervosa (AN) and bulimia nervosa (BN) are still poorly understood, but psychobiological models have proposed a key role for disturbances in the neuroendocrines that signal hunger and satiety and maintain energy homeostasis. Mounting evidence suggests that many neuroendocrines involved in the regulation of homeostasis and body weight also play integral roles in food reward valuation and learning via their interactions with the mesolimbic dopamine system. Neuroimaging data have associated altered brain reward responses in this system with the dietary restriction and binge eating and purging characteristic of AN and BN. Thus, neuroendocrine dysfunction may contribute to or perpetuate eating disorder symptoms via effects on reward circuitry. This narrative review focuses on reward-related neuroendocrines that are altered in eating disorder populations, including peptide YY, insulin, stress and gonadal hormones, and orexins. We provide an overview of the animal and human literature implicating these neuroendocrines in dopaminergic reward processes and discuss their potential relevance to eating disorder symptomatology and treatment.
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