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Presynaptic dopamine modulation by stimulant self-administration
Journal article   Open access   Peer reviewed

Presynaptic dopamine modulation by stimulant self-administration

Rodrigo A Espana and Sara R Jones
Frontiers in bioscience (Scholar edition), v 5(1), pp 261-276
01 Jan 2013
PMID: 23277050
url
https://europepmc.org/articles/pmc3733372View
Accepted (AM) Open
url
https://doi.org/10.2741/S371View
Published, Version of Record (VoR) Open

Abstract

Street Drugs Dopamine Plasma Membrane Transport Proteins - metabolism Self Administration Animals Presynaptic Terminals - drug effects Humans Presynaptic Terminals - metabolism Synaptic Transmission - drug effects Limbic System - metabolism Central Nervous System Stimulants - administration & dosage Dopamine - metabolism Limbic System - drug effects
The mesolimbic dopamine system is an essential participant in the initiation and modulation of various forms of goal-directed behavior, including drug reinforcement and addiction processes. Dopamine neurotransmission is increased by acute administration of all drugs of abuse, including the stimulants cocaine and amphetamine. Chronic exposure to these drugs via voluntary self-administration provides a model of stimulant abuse that is useful in evaluating potential behavioral and neurochemical adaptations that occur during addiction. This review describes commonly used methodologies to measure dopamine and baseline parameters of presynaptic dopamine regulation, including exocytotic release and reuptake through the dopamine transporter in the nucleus accumbens core, as well as dramatic adaptations in dopamine neurotransmission and drug sensitivity that occur with acute non-contingent and chronic, contingent self-administration of cocaine and amphetamine.

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