Cited by 138Smoking Behavior and CessationNeurotransmitter Receptor Influence on BehaviorNicotinic Acetylcholine Receptors Study

Withdrawal from Chronic Nicotine Exposure Alters Dopamine Signaling Dynamics in the Nucleus Accumbens

Open access
Zhang, Lifen, Dong, Yu, Doyon, William M., Dani, John A.·2012·Biological Psychiatry

Abstract

Background Unaided attempts to quit smoking commonly fail during the first two weeks of the nicotine withdrawal syndrome. Alterations in dopamine (DA) signaling correlate with withdrawal from chronic nicotine exposure, but those changes have not been well characterized. Methods Mice were administered nicotine in their drinking water for 4 or 12 weeks. Then nicotine was withheld for 1 to 10 days while DA signaling was characterized using in vivo microdialysis or fast-scan cyclic voltammetry. Results Upon withdrawal of nicotine, the basal DA concentration in the nucleus accumbens decreased as measured by microdialysis. The length of time that the low basal DA state lasted depended on the length of the chronic nicotine treatment. Microdialysis indicated that acute re-exposure to nicotine during withdrawal temporarily reversed this hypodopaminergic state. Voltammetry measurements supported the microdialysis results by showing that nicotine withdrawal decreased tonic and phasic DA release. The basal DA concentration and tonic DA signals, however, were disproportionately lower than the phasic DA signals. Therefore, the phasic/tonic DA signaling ratio was increased during the withdrawal period. Conclusions The relative increase in the sensitivity of DA release to phasic stimulation suggests an increase in the signal-to-noise relationship of DA signaling during the withdrawal period. Therefore, the DA signal produced by acute nicotine re-exposure produces a DA response that may reinforce relapse to drug use (i.e., smoking). Because the basal DA concentration is low during withdrawal, therapies aimed at elevating the background DA signal represent a reasonable treatment strategy for nicotine dependent individuals attempting to quit.

AI snapshot

Written from the paper’s full text.

TL;DR

Withdrawal from chronic nicotine in mice lowered basal nucleus accumbens dopamine and disproportionately reduced tonic versus phasic dopamine release, increasing the phasic/tonic dopamine signaling ratio. Acute nicotine re-exposure temporarily restored dopamine levels, which the authors suggest may enhance relapse-related reinforcement during abstinence.

Key findings

  • One day after withdrawal, basal DA in the medial NAc was significantly lower after 4 weeks (0.22 ± 0.03 nM, n = 7) and 12 weeks (0.24 ± 0.01 nM, n = 7) of nicotine than in controls (0.31 ± 0.02 nM, n = 9; p < 0.05).
  • Acute nicotine (1 mg/kg, i.p.) during withdrawal increased absolute DA to similar levels within 20 min across groups, but the relative nicotine-induced DA response was significantly higher in both 4-week and 12-week withdrawal groups than in controls.
  • Voltammetry showed lower evoked DA after withdrawal: single-pulse DA was 0.13 ± 0.01 μM × s vs. control 0.21 ± 0.02 μM × s, and 5-pulse phasic DA was 0.54 ± 0.05 vs. control 0.70 ± 0.06 (p < 0.01); the phasic-to-tonic ratio increased to 4.2 ± 0.15 from 3.4 ± 0.13 (p < 0.05).
  • The paired-pulse P2/P1 ratio was higher after withdrawal (0.89 ± 0.12) than in controls (0.59 ± 0.05; p < 0.001), and DHβE reduced single-pulse DA by only 19 ± 8% after withdrawal vs. 57 ± 5% in controls (p < 0.01).

Methods

  • Wild-type C57BL/6J mice aged 2–3 months received nicotine hydrogen tartrate (300 μg/ml) in drinking water with 2% saccharin for 4 or 12 weeks, then nicotine was withdrawn for 1, 5, or 10 days; controls received saccharin water.
  • DA signaling was measured using in vivo microdialysis in the medial NAc and fast-scan cyclic voltammetry in NAc shell brain slices with tonic (≈3 Hz) and phasic (≈20 Hz) stimulation protocols.
  • Dialysate DA was quantified by HPLC and analyzed with repeated-measures ANOVA on log-transformed concentrations; voltammetric DA signals were analyzed by paired t test or one-way ANOVA, with significance at p < 0.05.

Limitations

  • Stated: the authors note that their results contrast with a previous rat study (Rahman et al., 2004) and suggest species-related quantitative differences between rats and mice may account for the difference.
  • Stated: DHβE may not block all high-affinity nAChRs with equal efficacy, and upregulation of less common β2* nAChRs or changes in subunit composition could contribute to altered DA release during withdrawal.
  • Evident: the study focuses on DA and nAChR mechanisms while noting that nicotine also modulates GABA, glutamate, cholinergic, serotonin, and opioid systems; these other systems were not directly tested here.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1016/j.biopsych.2011.07.024

Cites

50 of 50 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

0 of 8 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    In slices from mice treated with nicotine for 12 weeks, dopamine release evoked by tonic and phasic stimulation was generally reduced after 1 day of withdrawal compared with controls.

    “In brain slices from mice chronically treated with nicotine (12 wks), there was a general reduction in DA release evoked by tonic and phasic stimulation after withdrawal (1 day) compared to the controls (Figure 3B).”
    Quote in the paperSubstantial claim
  • Findingown data

    After single-stimulus dopamine release returned to control levels, the phasic-to-tonic ratio also returned to normal.

    “After DA release to a single stimulus (1p) returned to control levels, then the phasic/tonic ratio also returned to normal (Figure 6B, C).”
    Quote in the paperSubstantial claim
  • Findingown data

    In control nucleus accumbens slices, a single pulse evoked a smaller dopamine signal than phasic stimulation with 5 pulses at 20 Hz.

    “In control NAc slices (Figure 4A), a single pulse (1p) stimulation evoked a smaller DA signal (0.21 ± 0.02 μM × s, n = 51) compared to phasic stimulation (0.70 ± 0.06 μM × s, n = 51).”
    Quote in the paperSubstantial claim
  • Findingown data

    Baseline dopamine concentration was inversely related to the percent increase in dopamine concentration produced by the nicotine challenge.

    “Interestingly, the baseline DA concentration (Figure 5C) was inversely related to the percent increase in DA concentration produced by the nicotine challenge (Figure 5D).”
    Quote in the paperNot a substantial claim
  • Findingown data

    Voltammetric recordings showed a disproportionate inhibition of tonic release compared with release evoked by phasic bursts.

    “Coupled with this hypothesized decrease in DA neuron firing, our voltammetric recordings showed a disproportionate inhibition of tonic release compared to release evoked by phasic bursts.”
    Quote in the paperSubstantial claim
  • May combine two claims. 11
  • The quote only partly states this claim. 1
  • Classified as probably not a substantial claim. 4
  • May combine two claims.

    Findingown data

    In slices from nicotine-withdrawn mice, DHβE reduced the single-pulse evoked dopamine signal by only 19 ± 8%, significantly less than in controls.

    “By contrast, in slices from nicotine withdrawn mice, DHβE only reduced the single-pulse evoked signal by 19 ± 8 %, n = 17 (Figure 7A, B), which was significantly less than the control response (p < 0.01).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    After chronic nicotine treatment, dopamine signals evoked by a single pulse and by a 5-pulse train were both smaller than control responses.

    “After chronic nicotine treatment, the DA signals evoked by the single-pulse stimulus (0.13 ± 0.01 μM × s, n = 51) and the 5-pulse stimulus train (0.54 ± 0.05, n = 51) were both smaller than the control response (p < 0.01) (Figure 4A).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    An acute nicotine challenge during withdrawal produced a relatively large dopamine response that returned dopamine levels to near control values for a short time.

    “However, an acute nicotine challenge during the withdrawal period produced a DA response that was relatively large, returning DA levels to near control values for a short time.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    In control brain slices, tonic stimulation produced regular dopamine responses that raised the baseline, while phasic stimulation evoked a larger response that merged into a single transient.

    “In control brain slices, tonic stimulation produced regular DA responses that elevated the baseline DA concentration, and phasic stimulation evoked a larger DA response that merged into a single transient (control, Figure 3A).”
    Quote in the paperSubstantial claim
  • The quote only partly states this claim.

    Findingown data

    After chronic nicotine treatment, the ratio of phasic-to-tonic dopamine release increased to 4.2 ± 0.15.

    “as well as an increase in the ratio of phasic-to-tonic DA release (4.2 ± 0.15, p < 0.05).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The urinary cotinine-to-creatinine ratio reached about 24 μg/mg after 3 weeks of nicotine treatment and stayed stable thereafter.

    “The cotinine/creatinine ratio reached peak values (≈24 μg/mg) after 3 wks of nicotine treatment and remained stable thereafter (Figure 1B).”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    DHβE reduced the phasic evoked dopamine signal by 29 ± 7% in controls but had almost no effect (1 ± 10%) after nicotine withdrawal.

    “Blockade of the high-affinity (mainly β2*) nAChRs only reduced the phasic evoked DA signal by 29 ± 7 % (Figure 7C, D) in the controls, but had almost no effect on phasic DA signals (1 ± 10 %) after nicotine withdrawal.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    The early period after nicotine withdrawal is a critical time for relapse and potentially for intervention.

    “suggesting that the early period following nicotine withdrawal is a critical time for relapse and, potentially, for intervention.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    The higher paired-pulse ratio after withdrawal suggests a lower initial probability of release and greater facilitation of release.

    “suggesting lower initial probability of release and greater facilitation of release after withdrawal.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Interpretationcitation

    A low dopamine state may drive drug seeking in order to reverse nicotine-induced dopamine deficiencies.

    “These studies support the hypothesis that a low DA state may induce drug seeking to reverse the nicotine-induced DA deficiencies.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The dopamine signaling changes observed in mice after nicotine withdrawal can be generalized to human smokers and to smoking relapse.
  • May combine two claims.

    Interpretationreasoning

    Adaptations in dopamine signaling caused by chronic nicotine exposure alter responses to nicotine and possibly to nicotine-related stimuli.

    “Adaptations in DA signaling caused by chronic nicotine exposure alter the responses to nicotine (the drug) and possibly to nicotine-related stimuli.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Dopamine release measured by fast-scan cyclic voltammetry in nucleus accumbens slices and by microdialysis reflects the in vivo dopamine signaling that governs nicotine reinforcement.
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation

    Species-related quantitative differences in dopamine function between rats and mice may account for differences in results.

    “Species related quantitative differences in DA function between rats and mice may account for the differences in the results (42, 43).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [42] Ford, 2006, Properties and opioid inhibition of mesolimbic dopamine neurons vary according to target location, J Neurosci source

      Not checked in the free run.

    • cites [43] Lammel, 2008, Unique properties of mesoprefrontal neurons within a dual mesocorticolimbic dopamine system, Neuron source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    Behavioral reinforcement and withdrawal effects induced by nicotine arise from complex interactions between neurotransmitter systems, with dopamine having a key role.

    “Thus, the behavioral reinforcement and withdrawal effects induced by nicotine arise from complex interactions between neurotransmitter systems, with DA having a key role.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationnone given

    Alterations in GABAergic and glutamatergic drive during nicotine withdrawal likely contribute to changes in tonic versus phasic dopamine neuron firing.

    “Alterations in GABAergic and glutamatergic drive during nicotine withdrawal likely contribute to changes in tonic versus phasic DA neuron firing.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    These findings have implications for understanding how exposure to drug-associated cues or drug relapse may exploit existing pathological changes in dopamine function arising from long-term nicotine use.

    “These findings have implications for understanding how exposure to drug-associated cues or drug relapse may act upon and exploit existing pathological changes in DA function arising from long-term nicotine use.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: The dopamine signaling changes observed in mice after nicotine withdrawal can be generalized to human smokers and to smoking relapse.
  • May combine two claims.

    Interpretationreasoning

    During nicotine withdrawal, acute nicotine-induced bursts will produce a significant dopamine signal because the release process is more responsive to facilitation produced by burst firing.

    “During the nicotine withdrawal period, the acute nicotine-induced bursts will produce a significant DA signal because the release process is more responsive to facilitation produced by burst firing.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Dopamine release measured by fast-scan cyclic voltammetry in nucleus accumbens slices and by microdialysis reflects the in vivo dopamine signaling that governs nicotine reinforcement.
16 of 16
  • The paper relies on this without support.

    The dopamine signaling changes observed in mice after nicotine withdrawal can be generalized to human smokers and to smoking relapse.

    “Therefore, the DA signal produced by acute nicotine re-exposure produces a DA response that may reinforce relapse to drug use (i.e., smoking).”
    “may make smokers in the withdrawal period more vulnerable to the reinforcing influence of nicotine (2).”
  • The paper relies on this without support.

    Dopamine release measured by fast-scan cyclic voltammetry in nucleus accumbens slices and by microdialysis reflects the in vivo dopamine signaling that governs nicotine reinforcement.

    “Voltammetric recordings in the nucleus accumbens (NAc) showed that tonic DA signals were inhibited to a greater degree than phasic DA signals after nicotine withdrawal, increasing the relative phasic-to-tonic response during the withdrawal period.”
    “To mimic tonic firing (≈3 Hz) and phasic burst firing (≈20 Hz) of DA neurons in vivo, we applied a stimulus train using a combination of tonic (7 pulses delivered at 3 Hz) and phasic (5 pulses delivered at 20 Hz) stimulation.”
2 of 2

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Deficiencies in accumbal dopaminergic transmission are believed to contribute to the aversive anhedonic or dysphoric state during nicotine abstinence.

    “Such deficiencies in accumbal dopaminergic transmission are believed to contribute to the aversive anhedonic or dysphoric state experienced during nicotine abstinence (Koob and Le Moal 2008; Zhang et al. 2012).”

    From Nicotine Withdrawal (2015) · cites this paper as Zhang et al. 2012

  • The change in dopamine activity during withdrawal correlated with reduced modulatory influence of β2* nAChRs over dopamine release in the nucleus accumbens.

    “This change in DA activity during withdrawal was correlated with a reduced modulatory influence by β2* nAChRs over DA release in the NAcc.”

    From Nicotine Withdrawal (2015) · cites this paper as Zhang et al. 2012

  • A reduction in basal dopamine levels persisted for at least 5 days in mice after 12 weeks of chronic nicotine treatment.

    “A reduction in basal DA levels was observed to linger for at least 5 days in mice following 12 weeks of chronic nicotine treatment (Zhang et al. 2012).”

    From Nicotine Withdrawal (2015) · cites this paper as Zhang et al. 2012

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Every reported test result, recomputed from its test statistic and degrees of freedom. A result shows as not adding up only once an independent check has confirmed it.

  • ConsistentF(1, 12) = 0.73reported p > .05 · recomputed p = .410

    “F(1,12) = 0.73, p > .05”

1 of 1

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Authors
Zhang, L., Dong, Y., Doyon, W. M., & Dani, J. A.
Affiliations
Baylor College of Medicine (US)
Corresponding author
Dani, John A.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2012-02
Volume
71
Issue
3
Pages
184-191
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2048204840
Cited by
135
References
50
Citations by year
2026: 7 · 2025: 7 · 2024: 4 · 2023: 11 · 2022: 7 · 2021: 6 · 2020: 8 · 2019: 5 · 2018: 7 · 2017: 9 · 2016: 6 · 2015: 15 · 2014: 22 · 2013: 14 · 2012: 7
FWCI
9.38
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Diana Helis Henry Medical Research Foundation
  • National Institutes of Health (NS21229)
  • National Institute on Drug Abuse (DA09411, R01DA009411)
  • National Institute of Neurological Disorders and Stroke (NS 21229, R37NS021229, R01NS021229)
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
Keywords
nicotine withdrawal, dopamine signaling, nucleus accumbens, chronic nicotine exposure, phasic dopamine release, tonic dopamine release, signal-to-noise ratio, relapse, smoking cessation, nicotine dependence
MeSH terms
Animals, Dihydro-beta-Erythroidine, Dopamine, Drug Administration Schedule, Mice, Inbred C57BL, Nicotine, Nucleus Accumbens, Self Administration, Substance Withdrawal Syndrome, Time Factors, Nicotinic Agonists, Nicotinic Antagonists, Mice

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