Cited by 385Smoking Behavior and CessationNicotinic Acetylcholine Receptors StudySubstance Abuse Treatment and Outcomes

Neurobiology of Nicotine Addiction: Implications for Smoking Cessation Treatment

Benowitz, Neal L.·2008·The American Journal of Medicine

Abstract

Nicotine sustains addictive tobacco use, which in turn causes much premature disability and death. The essence of drug addiction is loss of control of drug use. Molecular biology studies suggest that the alpha(4)beta(2) nicotinic acetylcholine receptor subtype is the main receptor mediating nicotine dependence. Nicotine acts on these brain nicotinic cholinergic receptors to facilitate neurotransmitter release (dopamine and others), producing pleasure, stimulation, and mood modulation. Neuroadaptation develops with repeated exposure to nicotine, resulting in tolerance to many of the effects of nicotine. When a smoker stops smoking, a nicotine withdrawal syndrome ensues, characterized by irritability, anxiety, increased eating, dysphoria, and hedonic dysregulation, among other symptoms. Smoking is also reinforced by conditioning, such that specific stimuli that are psychologically associated with smoking become cues for an urge to smoke. These include the taste and smell of tobacco, as well as particular moods, situations, and environmental cues. Pharmacotherapies to aid smoking cessation should ideally reduce nicotine withdrawal symptoms and block the reinforcing effects of nicotine obtained from smoking without causing excessive adverse effects. Further, given the important role of sensory effects of smoking and psychoactive effects of nicotine, counseling and behavioral therapies are important adjuncts to and substantially augment the benefits of pharmacotherapy.

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  • Receptor desensitization may be a major contributor to upregulation in chronic users of nicotine-containing products.

    “It has been suggested that receptor desensitization may be a major contributor to the upregulation observed in chronic users of nicotine-containing products (Benowitz 2008).”

    From Nicotine Withdrawal (2015) · cites this paper as Benowitz 2008

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  1. [11]11. Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition . Washington, DC: American Psychiatric Association, 1994.
  2. [27]27. Levin ED, Bettegowda C, Blosser J, Gordon J. AR-R17779, and 𝛂 7 nicotinic agonist, improves learning and memory in rats. Behav Pharmacol. 1999;10:675-680.

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Authors
Benowitz, N. L.
Affiliations
San Francisco General Hospital (US)
Corresponding author
Benowitz, Neal L.
Venue
The American Journal of Medicine
Publisher
Elsevier BV
Published
2008-04
Volume
121
Issue
4
Pages
S3-S10
ISSN
0002-9343 (ISSN-L)
OpenAlex
W2155128264
Cited by
385
References
50
Citations by year
2026: 16 · 2025: 17 · 2024: 12 · 2023: 26 · 2022: 20 · 2021: 15 · 2020: 13 · 2019: 15 · 2018: 13 · 2017: 22 · 2016: 20 · 2015: 13 · 2014: 31 · 2013: 28 · 2012: 39
FWCI
3.03
Type
journal article
Language
en
Open access
closed
Locations
  • The American Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Pfizer
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
nicotine dependence, smoking cessation, α4β2 nicotinic acetylcholine receptor, dopamine release, neural adaptation, nicotine withdrawal symptoms, cue reactivity, pharmacotherapy, behavior therapy, counseling
MeSH terms
Smoking Prevention, Humans, Neurobiology, Nicotine, Receptors, Nicotinic, Smoking, Substance Withdrawal Syndrome, Smoking Cessation

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