The mGluR2/3 agonist LY379268 attenuates context- and discrete cue-induced reinstatement of sucrose seeking but not sucrose self-administration in rats

Behav Brain Res. 2006 Oct 2;173(1):148-52. doi: 10.1016/j.bbr.2006.06.008. Epub 2006 Jul 10.

Abstract

We recently reported that systemic injections of the mGluR(2/3) agonist LY379268, which decreases evoked glutamate release, attenuate context- and discrete cue-induced reinstatement of heroin seeking, but not heroin self-administration. Here, we report that systemic injections of LY379268 attenuate context- and discrete cue-induced reinstatement of sucrose seeking, but not sucrose self-administration. These results suggest that similar neuronal mechanisms mediate cue-induced relapse to opiate- and palatable food seeking.

Publication types

  • Comparative Study
  • Research Support, N.I.H., Intramural

MeSH terms

  • Amino Acids / pharmacology*
  • Animals
  • Appetitive Behavior / drug effects*
  • Behavior, Addictive / physiopathology*
  • Bridged Bicyclo Compounds, Heterocyclic / pharmacology*
  • Feeding Behavior / drug effects*
  • Male
  • Rats
  • Receptors, Metabotropic Glutamate / agonists*
  • Reinforcement, Psychology
  • Self Administration
  • Sucrose / administration & dosage

Substances

  • Amino Acids
  • Bridged Bicyclo Compounds, Heterocyclic
  • LY 379268
  • Receptors, Metabotropic Glutamate
  • metabotropic glutamate receptor 2
  • Sucrose