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Open Access Green as soon as Postprint is submitted to ZB.
Gastric bypass surgery attenuates ethanol consumption in ethanol-preferring rats.
Biol. Psychiatry 72, 354-360 (2012)
BACKGROUND: Roux-en-Y gastric bypass (RYGB) surgery is an effective weight loss strategy employed to treat obesity and associated complications. Importantly, the RYGB procedure has been reported to attenuate reward-related consummatory behaviors. The present work examined the hypothesis that RYGB surgery attenuates ethanol intake and reward in the context of frequent ethanol consumption. METHODS: To do this, self-report of ethanol intake was examined in human bariatric patients (n = 6165) before and following the RYGB procedure. In addition, we utilized a rodent model of RYGB and examined ethanol consumption and ethanol reward in male ethanol-preferring (P) rats, which are selectively bred to consume large volumes of ethanol. RESULTS: Patients that reported frequent consumption of ethanol before RYGB reported decreased consumption following RYGB surgery. Moreover, the RYGB procedure decreased ethanol intake and the reinforcing properties of ethanol in P rats. Notably, the attenuating effect of RYGB surgery on ethanol consumption was associated with ethanol-induced increases in the gut hormone glucagon-like peptide-1 (GLP-1). Pharmacologic administration of GLP-1 agonists attenuated ethanol consumption in sham P rats. In addition, pharmacologic replacement of the gut hormone ghrelin restored drinking behavior in P rats following RYGB. CONCLUSIONS: Collectively, these findings unveil the potential of RYGB surgery to attenuate ethanol consumption in some humans and rats. Furthermore, our data indicate that this regulation is achieved, in part, through reduction of reward and is modified by the gut hormones GLP-1 and ghrelin.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
2012
HGF-reported in Year
0
ISSN (print) / ISBN
0006-3223
e-ISSN
1873-2402
Journal
Biological Psychiatry
Quellenangaben
Volume: 72,
Issue: 5,
Pages: 354-360
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Institute of Diabetes and Obesity (IDO)
PubMed ID
22444202
Erfassungsdatum
2013-02-13