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- W3093966439 abstract "An estimated 50–90% of individuals with cocaine use disorder (CUD) also report using alcohol. Cocaine users report coabusing alcohol to ‘self-medicate’ against the negative emotional side effects of the cocaine ‘crash’, including the onset of anxiety. Thus, pharmaceutical strategies to treat CUD would ideally reduce the motivational properties of cocaine, alcohol, and their combination, as well as reduce the onset of anxiety during drug withdrawal. The hypothalamic orexin (hypocretin) neuropeptide system offers a promising target, as orexin neurons are critically involved in activating behavioral and physiological states to respond to both positive and negative motivators. Here, we seek to describe studies demonstrating efficacy of orexin receptor antagonists in reducing cocaine, alcohol- and stress-related behaviors, but note that these studies have largely focused on each of these phenomena in isolation. For orexin-based compounds to be viable in the clinical setting, we argue that it is imperative that their efficacy be tested in animal models that account for polysubstance use patterns. To begin to examine this, we present new data showing that rats' preferred level of cocaine intake is significantly increased following chronic homecage access to alcohol. We also report that cocaine intake and motivation are reduced by a selective orexin-1 receptor antagonist when rats have a history of cocaine + alcohol, but not a limited history of cocaine alone. In light of these proof-of-principle data, we outline what we believe to be the key priorities going forward with respect to further examining the orexin system in models of polysubstance use. This article is part of the special issue on Neurocircuitry Modulating Drug and Alcohol Abuse." @default.
- W3093966439 created "2020-10-29" @default.
- W3093966439 creator A5030113568 @default.
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- W3093966439 creator A5064040318 @default.
- W3093966439 creator A5074083594 @default.
- W3093966439 creator A5075569787 @default.
- W3093966439 date "2021-02-01" @default.
- W3093966439 modified "2023-10-14" @default.
- W3093966439 title "The orexin (hypocretin) neuropeptide system is a target for novel therapeutics to treat cocaine use disorder with alcohol coabuse" @default.
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