Cited by 284Nicotinic Acetylcholine Receptors StudyNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Presynaptic Nicotinic Modulation of Dopamine Release in the Three Ascending Pathways Studied by In Vivo Microdialysis: Comparison of Naive and Chronic Nicotine‐Treated Rats

Marshall, David L., Redfern, Peter H., Wonnacott, Susan·1997·Journal of Neurochemistry

Abstract

Abstract: The modulation of dopamine release by presynaptic nicotinic receptors in vitro is well established, but the significance of this effect in vivo is unclear. We have characterised the effect of nicotine, locally applied via a microdialysis probe, on dopamine release from the terminal regions of three ascending dopaminergic pathways in conscious, freely moving rats. Nicotine caused a dose‐dependent increase in dopamine release in the striatum, the nucleus accumbens, and, to a lesser extent, the frontal cortex. Metabolite levels were unaltered by any concentration of nicotine. Prior administration of mecamylamine via the probe abolished the nicotine‐evoked increase in dopamine release, confirming the mediation of nicotinic receptors. The dose dependence of mecamylamine‐sensitive, nicotine‐evoked dopamine release was similar in all three brain regions. However, 10−5M tetrodotoxin totally blocked nicotine‐stimulated dopamine release in the striatum and the accumbens but not the cortex. Daily subcutaneous injections of nicotine (0.4 mg kg−1 for 7 days) increased the response to a subsequent local application of nicotine in the striatum, and a similar trend was found in the other brain areas. The same daily dose of nicotine given as a continuous infusion had no effect, whereas infusion of 4 mg kg−1 day−1 increased the response to a subsequent nicotine challenge. The localisation and regulation of nicotinic receptors in the terminal fields of dopaminergic pathways are discussed.

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Crossref · 10.1046/j.1471-4159.1997.68041511.x

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Authors
Marshall, D. L., Redfern, P. H., & Wonnacott, S.
Affiliations
University of Bath (GB)
Corresponding author
Wonnacott, Susan
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1997-04
Volume
68
Issue
4
Pages
1511-1519
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2090796082
Cited by
284
References
0
Citations by year
2025: 1 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 4 · 2019: 7 · 2018: 8 · 2017: 1 · 2016: 7 · 2015: 9 · 2014: 3 · 2013: 13 · 2012: 10
FWCI
5.89
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
presynaptic nicotinic acetylcholine receptors, dopamine release, nicotine, striatum, nucleus accumbens, frontal cortex, mecamylamine, tetrodotoxin, chronic nicotine treatment, nicotine tolerance, dopamine metabolites, in vivo microdialysis
MeSH terms
Animals, Dopamine, Male, Mecamylamine, Neurons, Nicotine, Tetrodotoxin, Time Factors, Rats, Sprague-Dawley, Microdialysis, Presynaptic Terminals, Nicotinic Agonists, Nicotinic Antagonists, Rats

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