Neuropeptide Y infusion into the shell region of the rat nucleus accumbens increases extracellular levels of dopamine

Research output: Contribution to journalJournal articleResearchpeer-review

Gunnar Sørensen, Gregers Wegener, Jørgen Hasselstrøm, Thomas V O Hansen, Gitta Wörtwein, Anders Fink-Jensen, David P D Woldbye

Increases in extracellular dopamine in the shell region of the nucleus accumbens are centrally involved in mediating reinforcement of addictive drugs. Neuropeptide Y (NPY) and its receptors are present in the nucleus accumbens and have been implicated in addiction mechanisms. This study further explored the potential role of NPY in addiction mechanisms using microdialysis to measure extracellular dopamine in vivo after infusion of NPY directly into the accumbal shell region of adult rats. NPY was found to dose-dependently increase extracellular dopamine levels, indicating that NPY could play an important role in drug reinforcement by modulating accumbal dopamine levels
Original languageEnglish
JournalNeuroReport
Volume20
Issue number11
Pages (from-to)1023-6
Number of pages3
ISSN0959-4965
Publication statusPublished - 2009

Bibliographical note

Keywords: Analysis of Variance; Animals; Area Under Curve; Catheterization; Chromatography, Liquid; Dopamine; Extracellular Space; Male; Microdialysis; Neuropeptide Y; Nucleus Accumbens; Rats; Rats, Sprague-Dawley; Tandem Mass Spectrometry

ID: 16945868