Journal article

The orexin1 receptor antagonist SB-334867 dissociates the motivational properties of alcohol and sucrose in rats

B Jupp, B Krivdic, E Krstew, AJ Lawrence

Brain Research | ELSEVIER | Published : 2011

Abstract

A role for orexin A in mediating the primary and conditioned reinforcing effects of alcohol has been established. It is unclear however whether the contribution of orexins to alcohol reward occurs independently of effects on appetite and feeding, and whether orexins regulate the motivation to consume alcohol compared to other rewards. To examine this further here we investigate the effect of the orexin1 receptor antagonist, SB-334867, on self-administration of alcohol (10% v/v) under both fixed (FR) and progressive ratio (PR) schedules of reinforcement, and whether this differs from the motivation to administer a natural food reward, sucrose (0.2-0.7% w/v) in alcohol preferring (iP) rats. SB..

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