Role of the satiety factor oleoylethanolamide in alcoholism

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• 作者：Ainhoa Bilbao ; Antonia Serrano ; Andrea Cippitelli ; Francisco J. Pavó ; n ; Andrea Giuffrida ; Juan Suá ; rez ; Nuria Garcí ; a-Marchena ; Elena Baixeras ; Raquel Gó ; mez de Heras ; Laura Orio ; Francisco Alé ; n ; Roberto Ciccocioppo ; Benjamin F. Cravatt ; Loren H. Parsons ; Daniele Piomelli and Fernando Rodrí ; guez de Fonseca
• 刊名：Addiction Biology
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：21
• 期：4
• 页码：859-872
• 全文大小：410K
• ISSN：1369-1600

文摘

Oleoylethanolamide (OEA) is a satiety factor that controls motivational responses to dietary fat. Here we show that alcohol administration causes the release of OEA in rodents, which in turn reduces alcohol consumption by engaging peroxisome proliferator-activated receptor-alpha (PPAR-α). This effect appears to rely on peripheral signaling mechanisms as alcohol self-administration is unaltered by intracerebral PPAR-α agonist administration, and the lesion of sensory afferent fibers (by capsaicin) abrogates the effect of systemically administered OEA on alcohol intake. Additionally, OEA is shown to block cue-induced reinstatement of alcohol-seeking behavior (an animal model of relapse) and reduce the severity of somatic withdrawal symptoms in alcohol-dependent animals. Collectively, these findings demonstrate a homeostatic role for OEA signaling in the behavioral effects of alcohol exposure and highlight OEA as a novel therapeutic target for alcohol use disorders and alcoholism.