Cited by 45Nicotinic Acetylcholine Receptors StudySmoking Behavior and CessationNeurotransmitter Receptor Influence on Behavior

Nicotine withdrawal in the rat: role of α7 nicotinic receptors in the ventral tegmental area

Nomikos, George G., Hildebrand, Bengt E., Panagis, George, Svensson, Torgny H.·1999·Neuroreport

Abstract

Previous data show that nicotinic receptors in the ventral tegmental area are of importance for the nicotine withdrawal syndrome. Here we have investigated the specific role of alpha7 nicotinic receptors in the ventral tegmental area for the neurobiological and behavioral consequences of nicotine withdrawal. Rats were exposed to nicotine for 14 days via s.c. osmotic minipumps. Bilateral intrategmental injections of the selective alpha7 nicotinic receptor antagonist methyllycaconitine reduced locomotion in the nicotine-treated rats, but not in control animals. Unilateral intrategmental injection of methyllycaconitine reduced dopamine output in the ipsilateral nucleus accumbens of nicotine-treated rats, but not in controls. Our results indicate that alpha7 nicotinic receptors in the ventral tegmental area are involved in the nicotine withdrawal syndrome.

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Crossref · 10.1097/00001756-199903170-00007

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10 of 10 references verified0 citation errors · 0 not checkable

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Authors
Nomikos, G. G., Hildebrand, B. E., Panagis, G., & Svensson, T. H.
Affiliations
  • Eli Lilly (United States) (US)
  • Karolinska Institutet (SE)
Venue
Neuroreport
Published
1999-03
Volume
10
Issue
4
Pages
697-702
ISSN
0959-4965 (ISSN-L)
OpenAlex
W2109108702
Cited by
45
References
10
Citations by year
2022: 1 · 2021: 1 · 2018: 1 · 2016: 3 · 2014: 3 · 2013: 2
FWCI
1.38
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroreport (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
nicotine withdrawal, alpha7 nicotinic acetylcholine receptor, ventral tegmental area, methyllycaconitine, dopamine release, nucleus accumbens, locomotor activity, nicotine dependence
MeSH terms
Animals, Dopamine, Homovanillic Acid, Male, Microinjections, Motor Activity, Nicotine, Nucleus Accumbens, Receptors, Nicotinic, Substance Withdrawal Syndrome, 3,4-Dihydroxyphenylacetic Acid, Rats, Wistar, Microdialysis, Ventral Tegmental Area, Nicotinic Agonists, Rats, alpha7 Nicotinic Acetylcholine Receptor

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