Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-3-11
pubmed:abstractText
Increasing evidence points to a major involvement of cortical areas in addictive mechanisms. Noradrenergic transmission in the medial prefrontal cortex (mpFC) has been shown to affect the motor effects of amphetamine, although there is no evidence of its involvement in the rewarding effects of this psychostimulant. The present experiments were aimed at investigating the possibility of a selective involvement of prefrontal cortical norepinephrine (NE) in the rewarding-reinforcing effects of amphetamine. To do so, we evaluated the effects of mpFC NE selective depletion in mice of C57BL/6J inbred strain, a background commonly used in molecular approaches that is known to be highly susceptible to the rewarding effects of the psychostimulant. In a first set of experiments, we demonstrated the absence of amphetamine-induced conditioned place preference in mice bearing prefrontal NE depletion. In a second series of experiments, we demonstrated that the same lesion dramatically reduced amphetamine-induced mesoaccumbens dopamine release as measured by intracerebral microdialysis. These results indicate that noradrenergic prefrontal transmission, by allowing increased dopamine release in the nucleus accumbens induced by amphetamine, is a critical factor for the rewarding-reinforcing effects of this drug.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1529-2401
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1879-85
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:12629192-Amphetamine, pubmed-meshheading:12629192-Animals, pubmed-meshheading:12629192-Behavior, Animal, pubmed-meshheading:12629192-Conditioning (Psychology), pubmed-meshheading:12629192-Dopamine, pubmed-meshheading:12629192-Dopamine Uptake Inhibitors, pubmed-meshheading:12629192-Extracellular Space, pubmed-meshheading:12629192-Male, pubmed-meshheading:12629192-Mice, pubmed-meshheading:12629192-Mice, Inbred C57BL, pubmed-meshheading:12629192-Microdialysis, pubmed-meshheading:12629192-Motor Activity, pubmed-meshheading:12629192-Norepinephrine, pubmed-meshheading:12629192-Nucleus Accumbens, pubmed-meshheading:12629192-Oxidopamine, pubmed-meshheading:12629192-Piperazines, pubmed-meshheading:12629192-Prefrontal Cortex, pubmed-meshheading:12629192-Reward, pubmed-meshheading:12629192-Spatial Behavior
pubmed:year
2003
pubmed:articleTitle
Norepinephrine in the prefrontal cortex is critical for amphetamine-induced reward and mesoaccumbens dopamine release.
pubmed:affiliation
Dipartimento di Psicologia, Università La Sapienza, 00185 Rome, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't