Cited by 463Neurotransmitter Receptor Influence on BehaviorSchizophrenia research and treatmentNeuroscience and Neuropharmacology Research

Persistent sensitization of dopamine neurotransmission in ventral striatum (nucleus accumbens) produced by prior experience with (+)-amphetamine: a microdialysis study in freely moving rats

Robinson, Terry E., Jurson, Phillip A., Bennett, Julie A., Bentgen, Kris M.·1988·Brain Research

Abstract

In humans the repeated use of amphetamine (AMPH) produces a hypersensitivity to the psychotogenic effects of AMPH that persists for months to years after the cessation of drug use. To explore the neurobiological basis of this phenomenon the long-term effects of dextroamphetamine [+)-AMPH) on brain monoamines and behavior were studied in an animal model of AMPH psychosis. An escalating dose pretreatment regimen (from 1 to 10 mg/kg over 5 weeks) was used to mimic the pattern of drug use associated with the development of addiction and AMPH psychosis. The effect of pretreatment with AMPH on dopamine (DA) release in the ventral striatum (nucleus accumbens) was determined by measuring the extracellular concentrations of DA and DA metabolites using in vivo microdialysis, both before and after an AMPH challenge. The postmortem tissue concentrations of DA, serotonin and their metabolites were measured to determine if this treatment was neurotoxic. Escalating doses of (+)-AMPH were not neurotoxic, and 25-30 days after the cessation of drug treatment animals showed relatively normal levels of spontaneous motor activity across the day-night cycle. However, AMPH pretreatment produced robust behavioral sensitization. Animals showed a marked hypersensitivity to the motor stimulant effects of an AMPH challenge, even after 15-20 days of withdrawal. Most importantly, this hyperdopaminergic behavioral syndrome was accompanied by significantly elevated DA release in the ventral striatum. In contrast, AMPH pretreatment had no effect on the basal extracellular concentrations of DA.(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1016/0006-8993(88)90549-5

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Authors
Robinson, T. E., Jurson, P. A., Bennett, J. A., & Bentgen, K. M.
Affiliations
University of Michigan (US)
Corresponding author
Robinson, Terry E.
Venue
Brain Research
Publisher
Elsevier BV
Published
1988-10
Volume
462
Issue
2
Pages
211-222
ISSN
0006-8993 (ISSN-L)
OpenAlex
W1982383406
Cited by
463
References
50
Citations by year
2026: 1 · 2025: 4 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 7 · 2019: 3 · 2018: 4 · 2017: 6 · 2016: 4 · 2015: 6 · 2014: 8 · 2013: 7 · 2012: 11
FWCI
5.92
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
  • National Institute on Drug Abuse (DA 04294)
  • National Institute of Neurological Disorders and Stroke (NS 00844)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
amphetamine, nucleus accumbens, ventral striatum, dopamine release, behavioral sensitization, drug-induced psychosis, serotonin, neurotoxicity, drug withdrawal, addiction
MeSH terms
Amphetamine, Animals, Dialysis, Dopamine, Dose-Response Relationship, Drug, Female, Homovanillic Acid, Motor Activity, Synaptic Transmission, Nucleus Accumbens, Septal Nuclei, Serotonin, 3,4-Dihydroxyphenylacetic Acid, Rats

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