Nociceptin receptor antagonist SB 612111 decreases high fat diet binge eating

TitleNociceptin receptor antagonist SB 612111 decreases high fat diet binge eating
Publication TypeJournal Article
Year of Publication2016
AuthorsJ Hardaway A, Jensen J, Kim M, Mazzone CM, Sugam JA, DiBerto JF, Lowery-Gionta EG, Hwa LS, Pleil KE, Bulik CM, Kash TL
JournalBehav Brain Res
Volume307
Pagination25-34
Date Published2016 Jul 01
ISSN1872-7549
KeywordsAdaptation, Ocular, Analysis of Variance, Animals, Antidepressive Agents, Second-Generation, Bulimia, Cycloheptanes, Diet, High-Fat, Disease Models, Animal, Dose-Response Relationship, Drug, Exploratory Behavior, Female, Fluoxetine, Male, Maze Learning, Mice, Mice, Inbred C57BL, Nociceptin Receptor, Piperidines, Receptors, Opioid, Sex Characteristics, Time Factors
Abstract

Binge eating is a dysregulated form of feeding behavior that occurs in multiple eating disorders including binge-eating disorder, the most common eating disorder. Feeding is a complex behavioral program supported through the function of multiple brain regions and influenced by a diverse array of receptor signaling pathways. Previous studies have shown the overexpression of the opioid neuropeptide nociceptin (orphanin FQ, N/OFQ) can induce hyperphagia, but the role of endogenous nociceptin receptor (NOP) in naturally occurring palatability-induced hyperphagia is unknown. In this study we adapted a simple, replicable form of binge eating of high fat food (HFD). We found that male and female C57BL/6J mice provided with daily one-hour access sessions to HFD eat significantly more during this period than those provided with continuous 24h access. This form of feeding is rapid and entrained. Chronic intermittent HFD binge eating produced hyperactivity and increased light zone exploration in the open field and light-dark assays respectively. Treatment with the potent and selective NOP antagonist SB 612111 resulted in a significant dose-dependent reduction in binge intake in both male and female mice, and, unlike treatment with the serotonin selective reuptake inhibitor fluoxetine, produced no change in total 24-h food intake. SB 612111 treatment also significantly decreased non-binge-like acute HFD consumption in male mice. These data are consistent with the hypothesis that high fat binge eating is modulated by NOP signaling and that the NOP system may represent a promising novel receptor to explore for the treatment of binge eating.

DOI10.1016/j.bbr.2016.03.046
Alternate JournalBehav Brain Res
PubMed ID27036650
PubMed Central IDPMC4896639
Grant ListP60 AA011605 / AA / NIAAA NIH HHS / United States
F31 MH093102 / MH / NIMH NIH HHS / United States
F31 AA023440 / AA / NIAAA NIH HHS / United States
P50 AA011605 / AA / NIAAA NIH HHS / United States
T32 MH076694 / MH / NIMH NIH HHS / United States
P30 DK056350 / DK / NIDDK NIH HHS / United States
R01 AA019454 / AA / NIAAA NIH HHS / United States
U01 MH105892 / MH / NIMH NIH HHS / United States
U01 AA020911 / AA / NIAAA NIH HHS / United States