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Garcia-Rivas V, Fiancette JF, Tostain J, de Maio G, Ceau M, Wiart JF, Gaulier JM, Deroche-Gamonet V. Individual variations in motives for nicotine self-administration in male rats: evidence in support for a precision psychopharmacology. Transl Psychiatry 2024; 14:85. [PMID: 38336930 PMCID: PMC10858238 DOI: 10.1038/s41398-024-02774-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/07/2024] [Accepted: 01/10/2024] [Indexed: 02/12/2024] Open
Abstract
The significant heterogeneity in smoking behavior among smokers, coupled with the inconsistent efficacy of approved smoking cessation therapies, supports the presence of individual variations in the mechanisms underlying smoking. This emphasizes the need to shift from standardized to personalized smoking cessation therapies. However, informed precision medicine demands precision fundamental research. Tobacco smoking is influenced and sustained by diverse psychopharmacological interactions between nicotine and environmental stimuli. In the classical experimental rodent model for studying tobacco dependence, namely intravenous self-administration of nicotine, seeking behavior is reinforced by the combined delivery of nicotine and a discrete cue (nicotine+cue). Whether self-administration behavior is driven by the same psychopharmacological mechanisms across individual rats remains unknown and unexplored. To address this, we employed behavioral pharmacology and unbiased cluster analysis to investigate individual differences in the mechanisms supporting classical intravenous nicotine self-administration (0.04 mg/kg/infusion) in male outbred Sprague-Dawley rats. Our analysis identified two clusters: one subset of rats sought nicotine primarily for its reinforcing effects, while the second subset sought nicotine to enhance the reinforcing effects of the discrete cue. Varenicline (1 mg/kg i.p.) reduced seeking behavior in the former group, whereas it tended to increase in the latter group. Crucially, despite this fundamental qualitative difference revealed by behavioral manipulation, the two clusters exhibited quantitatively identical nicotine+cue self-administration behavior. The traditional application of rodent models to study the reinforcing and addictive effects of nicotine may mask individual variability in the underlying motivational mechanisms. Accounting for this variability could significantly enhance the predictive validity of translational research.
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Affiliation(s)
- Vernon Garcia-Rivas
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France.
- INSERM, Magendie, U1215, F-33000, Bordeaux, France.
- Yale University School of Medicine, Department of Psychiatry, New Haven, CT, USA.
| | - Jean-François Fiancette
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France
- INSERM, Magendie, U1215, F-33000, Bordeaux, France
| | - Jessica Tostain
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France
- INSERM, Magendie, U1215, F-33000, Bordeaux, France
| | - Giulia de Maio
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France
- INSERM, Magendie, U1215, F-33000, Bordeaux, France
| | - Matias Ceau
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France
- INSERM, Magendie, U1215, F-33000, Bordeaux, France
| | | | - Jean-Michel Gaulier
- CHU Lille, Unité Fonctionnelle de Toxicologie, F-59037, Lille, France
- Univ. Lille, ULR 4483, IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59045, Lille, France
| | - Véronique Deroche-Gamonet
- Univ. Bordeaux, INSERM, Magendie, U1215, F-33000, Bordeaux, France.
- INSERM, Magendie, U1215, F-33000, Bordeaux, France.
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Novoa C, Solano JL, Ballesteros-Acosta HN, Lamprea MR, Ortega LA. Nicotine Differentially Modulates Emotional-Locomotor Interactions for Adult or Adolescent Rats. REVISTA COLOMBIANA DE PSICOLOGÍA 2022. [DOI: 10.15446/rcp.v31n1.89822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Previous research has shown that exposure to nicotine and other drugs of abuse stimulate dopaminergic neurons in the mesolimbic circuit. Sustained activation of this circuit by prolonged exposure to drugs promotes locomotor sensitization. However, there are inconsistent reports about nicotine-induced locomotor sensitization when assessed among different developmental stages. We evaluated exploratory behavior on specific areas of the open field as an indicator of behavioral disinhibition and general locomotor activity as an indicator of nicotine-induced locomotor sensitization, to further explore the mechanisms underlying behavioral adaptations to nicotine exposure in animals from different developmental stages. We found that while adolescent and adult rats are equally responsive to nicotine-induced locomotor sensitization, nicotine disrupts inhibition of risk-related behavior only in adolescent rats. Together, our results suggest that chronic daily exposure to nicotine promotes potentiation of its stimulant effects on locomotor activity. In adolescents, this effect is accompanied by a decreased capacity to inhibit risk-related behaviors under the acute effect of the drug.
How to cite this article: Novoa, C., Solano, J. L., Ballesteros-Acosta, H., Lamprea, R. M., & Ortega, L. A. (2021). Nicotine Differentially Modulates Emotional-Locomotor Interactions for Adult or Adolescent Rats. Revista Colombiana de Psicología, 31(1), 13-22. https://doi.org/10.15446/rcp.v31n1.89822
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Zhang H, Fu C, Ren T, Xie H, Mao G, Wang Z, Wang F, Song A. Improvement of Nicotine Removal and Ethanol Fermentability From Tobacco Stalk by Integration of Dilute Sulfuric Acid Presoak and Instant Catapult Steam Explosion Pretreatment. Front Bioeng Biotechnol 2021; 9:763549. [PMID: 34778234 PMCID: PMC8585754 DOI: 10.3389/fbioe.2021.763549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
The nicotine from tobacco stalk showed obvious inhibitory effect on the activity of cellulase and fermentability of microorganisms, which seriously hinders the utilization of tobacco stalk. Dilute sulfuric acid presoak of tobacco stalk was used to enhance the performance of instant catapult steam explosion (ICSE) for tobacco stalk pretreatment. The presoak was beneficial to break the recalcitrant structure of tobacco stalk, reduce nicotine content to relieve the inhibition on the activity of cellulase and metabolism of microorganisms, and promote the performance of enzymatic hydrolysis and ethanol fermentation. The optimized 0.8% sulfuric acid (w/w) presoak-integrated ICSE pretreatment resulted in 85.54% nicotine removal from tobacco stalk; meanwhile, the total sugar concentration from enzymatic hydrolysis of pretreated tobacco stalk increased from 33.40 to 53.81 g/L (the ratio of dry tobacco stalk to water was 1:8, w/w), ethanol concentration increased 103.36% from 5.95 to 12.10 g/L in flask, compared with separate ICSE pretreatment. Finally, the ethanol concentration achieved the highest 23.53 g/L in a 5-L fermenter with the ethanol yield from the glucose of tobacco stalk hydrolysate achieving 71.40% by increasing the solid loading of the tobacco stalk in the enzymatic hydrolysis process (the ratio of dry tobacco stalk to water was 1:4, w/w). These results achieved the expected purpose of efficient utilization of discarded tobacco stalk.
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Affiliation(s)
- Hongsen Zhang
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
| | - Chenqing Fu
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
| | - Tianbao Ren
- College of Tobacco, Henan Agricultural University, Zhengzhou, China
| | - Hui Xie
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
| | - Guotao Mao
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
| | - Zhimin Wang
- College of Science, Henan Agricultural University, Zhengzhou, China
| | - Fengqin Wang
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
| | - Andong Song
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, College of Life Science, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China
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Baumbach JL, McCormick CM. Nicotine sensitization (Part 2): Time spent in the centre of an open field sensitizes to repeated nicotine into the drug-free state in female rats. Psychopharmacology (Berl) 2021; 238:371-382. [PMID: 33123818 DOI: 10.1007/s00213-020-05686-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023]
Abstract
RATIONALE Nicotine is initially anxiogenic and becomes anxiolytic after prolonged exposure. The mechanisms that facilitate the shift in anxiety-like behaviour produced by nicotine are unclear. OBJECTIVE We investigated the change in time spent in the centre of an open field (as a measure anxiety-like behaviour) produced by three intermittent injections of nicotine as part of experiments of locomotor sensitization to nicotine. METHODS Rats were injected with nicotine (0.4 mg/kg) or saline and immediately placed in the open field arena for 1 h on two consecutive days and again 9 days later. RESULTS When given saline, time spent in the centre of the arena did not change, whereas repeated nicotine injections increased in time spent in the centre beyond the increase produced by an acute injection of nicotine. Repeated nicotine (and not acute nicotine) also increased time in the centre in a drug-free state when tested 24 h after the last injection. CONCLUSION Repeated nicotine sensitized the time spent in the centre of an open field with the long-lasting sensitization of this measure of anxiety-like behaviour evident in a drug-free state, in contrast to locomotor sensitization which does not persist in the drug-free state. The results suggest independence of the mechanisms of sensitization that underlie locomotor and anxiolytic effects.
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Affiliation(s)
| | - Cheryl M McCormick
- Department of Psychology, Department of Biological Sciences, Centre for Neuroscience, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada.
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Opposing effects of acute and repeated nicotine exposure on boldness in zebrafish. Sci Rep 2020; 10:8570. [PMID: 32444782 PMCID: PMC7244486 DOI: 10.1038/s41598-020-65382-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 04/21/2020] [Indexed: 12/21/2022] Open
Abstract
Nicotine is an addictive compound that activates neuronal nicotinic acetylcholine receptors (nAChRs) and causes behavioural effects that vary with dose, schedule of administration, and animal model. In zebrafish (Danio rerio), acute doses of nicotine have been consistently found to have anxiolytic properties, whereas, chronic exposure elicits anxiogenic effects. To date, however, studies on repeated nicotine administration and the effects of nicotine withdrawal have not been well explored using this model. In this study, we administered nicotine with three different dosing regimens: 1. Single exposures of a "high" dose (25, 50, 100, or 400 mg/L) for 3 minutes. 2. Single exposures to a "low" dose (2.5, 5, or 20 mg/L) for one hour. 3. Repeated one-hour exposure to a "low" dose (2.5, 5, or 20 mg/L) for 21 days. The novel object approach test was used to examine boldness based on the tendency of the fish to explore a novel object. Acutely, nicotine significantly increased the time spent approaching the object with both three-minute and onehour durations of exposure, indicating increased boldness. Conversely, after repeated nicotine exposure for 21 days, fish spent less time approaching the object suggesting a decrease in boldness. Distance moved was unaffected one hour after repeated nicotine exposure, yet decreased after a two-day withdrawal period. Our work suggests that nicotine can have opposing effects on boldness that vary based on dosage and schedule of exposure.
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Lee AM, Calarco CA, McKee SA, Mineur YS, Picciotto MR. Variability in nicotine conditioned place preference and stress-induced reinstatement in mice: Effects of sex, initial chamber preference, and guanfacine. GENES, BRAIN, AND BEHAVIOR 2020; 19:e12601. [PMID: 31364813 PMCID: PMC8045136 DOI: 10.1111/gbb.12601] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/25/2019] [Accepted: 07/27/2019] [Indexed: 12/24/2022]
Abstract
Relapse to smoking occurs at higher rates in women compared with men, especially when triggered by stress. Studies suggest that sex-specific interactions between nicotine reward and stress contribute to these sex differences. Accordingly, novel treatment options targeting stress pathways, such as guanfacine, an α2-adrenergic receptor agonist, may provide sex-sensitive therapeutic effects. Preclinical studies are critical for elucidating neurobiological mechanisms of stress-induced relapse and potential therapies, but rodent models of nicotine addiction are often hindered by large behavioral variability. In this study, we used nicotine conditioned place preference to investigate stress-induced reinstatement of nicotine preference in male and female mice, and the effects of guanfacine on this behavior. Our results showed that overall, nicotine induced significant place preference acquisition and swim stress-induced reinstatement in both male and female mice, but with different nicotine dose-response patterns. In addition, we explored the variability in nicotine-dependent behaviors with median split analyses and found that initial chamber preference in each sex differentially accounted for variability in stress-induced reinstatement. In groups that showed significant stress-induced reinstatement, pretreatment with guanfacine attenuated this behavior. Finally, we evaluated neuronal activation by Arc immunoreactivity in the infralimbic cortex, prelimbic cortex, anterior insula, basolateral amygdala, lateral central amygdala and nucleus accumbens core and shell. Guanfacine induced sex-dependent changes in Arc immunoreactivity in the infralimbic cortex and anterior insula. This study demonstrates sex-dependent relationships between initial chamber preference and stress-induced reinstatement of nicotine conditioned place preference, and the effects of guanfacine on both behavior and neurobiological mechanisms.
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Affiliation(s)
- Angela M. Lee
- Department of Psychiatry, Yale University, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
- Yale Interdepartmental Neuroscience Program
| | - Cali A. Calarco
- Department of Psychiatry, Yale University, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
- Yale Interdepartmental Neuroscience Program
| | - Sherry A. McKee
- Department of Psychiatry, Yale University, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
| | - Yann S. Mineur
- Department of Psychiatry, Yale University, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
| | - Marina R. Picciotto
- Department of Psychiatry, Yale University, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
- Yale Interdepartmental Neuroscience Program
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Sampedro-Piquero P, Ladrón de Guevara-Miranda D, Pavón FJ, Serrano A, Suárez J, Rodríguez de Fonseca F, Santín LJ, Castilla-Ortega E. Neuroplastic and cognitive impairment in substance use disorders: a therapeutic potential of cognitive stimulation. Neurosci Biobehav Rev 2019; 106:23-48. [DOI: 10.1016/j.neubiorev.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 10/15/2018] [Accepted: 11/23/2018] [Indexed: 01/08/2023]
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Duarte T, Fontana BD, Müller TE, Bertoncello KT, Canzian J, Rosemberg DB. Nicotine prevents anxiety-like behavioral responses in zebrafish. Prog Neuropsychopharmacol Biol Psychiatry 2019; 94:109655. [PMID: 31112733 DOI: 10.1016/j.pnpbp.2019.109655] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 01/01/2023]
Abstract
Anxiety-related disorders are severe psychiatric conditions that involve complex physiological and behavioral maladaptive responses. The use of conspecific alarm substance (CAS) for inducing anxiety-like behaviors in fish species provides important translational insights of how aversive conditions modulate neurobehavioral functions. Because nicotine may elicit anxiolytic-like responses, here we investigated whether acute nicotine exposure prevents CAS-induced anxiogenic-like behaviors in zebrafish. We used both novel tank and light-dark tests as two well-established paradigms for measuring anxiety-like phenotypes. Fish were individually exposed to 1 mg/L nicotine or non-chlorinated water for 3 min and then transferred to other tanks in the absence or presence of 3.5 mL/L CAS for 5 min. Later, the behavior of fish was tested in the novel tank test or in the light-dark preference test. As expected, CAS triggered aversive behaviors by increasing bottom-dwelling, freezing, erratic movements, scototaxis, and risk assessment episodes. Nicotine alone elicited anxiolytic-like behaviors since it increased the time spent in the top, as well as the average duration of entry in the lit compartment. Moreover, nicotine pretreatment prevented CAS-induced aversive responses without changing locomotion, suggesting that anxiolysis could play a role, at least in part, to the behavioral effects of nicotine observed here. Overall, these novel findings show the beneficial effects of nicotine on anxiogenic responses in zebrafish. We also reinforce the practical advantages of this aquatic species to explore the relieving properties of nicotine, as well as to understand the neurobiological bases involved in anxiety-related disorders and associated therapeutic targets.
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Affiliation(s)
- Tâmie Duarte
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Barbara D Fontana
- Brain and Behaviour Laboratory, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Old St Michael's Building, Portsmouth PO1 2DT, UK
| | - Talise E Müller
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Kanandra T Bertoncello
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Julia Canzian
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Denis B Rosemberg
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Natural and Exact Sciences Center, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil; The International Zebrafish Neuroscience Research Consortium (ZNRC), 309 Palmer Court, Slidell, LA 70458, USA.
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Sensitization-dependent nicotine place preference in the adult zebrafish. Prog Neuropsychopharmacol Biol Psychiatry 2019; 92:457-469. [PMID: 30826460 DOI: 10.1016/j.pnpbp.2019.02.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/21/2019] [Accepted: 02/27/2019] [Indexed: 12/21/2022]
Abstract
Sensitization of motor activity is a behavioural test to evaluate the effects of psychostimulants. Conditioned place preference (CPP) is an associative learning procedure to examine the rewarding properties of drugs. We aimed to assess whether motor sensitization to drugs of abuse can make zebrafish more vulnerable to establishing drug-induced CPP. We first evaluated sensitization of locomotor activity of zebrafish to repeated administrations of nicotine and cocaine during 5 days and after 5 days of withdrawal. After withdrawal, when zebrafish were re-exposed to the same dose of nicotine or cocaine locomotor activity was increased by 103% and 166%, respectively. Different groups of zebrafish were sensitized to nicotine or cocaine and trained on a nicotine-CPP task the day after withdrawal. The nicotine dose selected for sensitization was not effective for developing CPP in naïve zebrafish whereas it elicited CPP in zebrafish that were previously sensitized to nicotine or cocaine. Levels of nicotinic acetylcholine receptor β2, α6 and α7 subunit, Pitx3, and tyrosine hydroxylase 1 (TH1) mRNAs were increased in the brain of nicotine- and cocaine-sensitized zebrafish. Nicotine-CPP performed with drug-sensitized zebrafish provoked further enhancements in the expression of α6 and α7 subunit, Pitx3, and TH1 mRNAs suggesting that the expression of these molecules in the reward pathway is involved in both processes. Our findings indicate that repeated exposures to low doses of drugs of abuse can increase subject's sensitivity to the rewarding properties of the same or different drugs. This further suggests that casual drug intake increases the probability of becoming addict.
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Garcia‐Rivas V, Deroche‐Gamonet V. Not all smokers appear to seek nicotine for the same reasons: implications for preclinical research in nicotine dependence. Addict Biol 2019; 24:317-334. [PMID: 29480575 DOI: 10.1111/adb.12607] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 12/11/2017] [Accepted: 01/15/2018] [Indexed: 01/08/2023]
Abstract
Tobacco use leads to 6 million deaths every year due to severe long-lasting diseases. The main component of tobacco, nicotine, is recognized as one of the most addictive drugs, making smoking cessation difficult, even when 70 percent of smokers wish to do so. Clinical and preclinical studies have demonstrated consistently that nicotine seeking is a complex behavior involving various psychopharmacological mechanisms. Evidence supports that the population of smokers is heterogeneous, particularly as regards the breadth of motives that determine the urge to smoke. Here, we review converging psychological, genetic and neurobiological data from clinical and preclinical studies supporting that the mechanisms controlling nicotine seeking may vary from individual to individual. It appears timely that basic neuroscience integrates this heterogeneity to refine our understanding of the neurobiology of nicotine seeking, as tremendous progress has been made in modeling the various psychopharmacological mechanisms driving nicotine seeking in rodents. For a better understanding of the mechanisms that drive nicotine seeking, we emphasize the need for individual-based research strategies in which nicotine seeking, and eventually treatment efficacy, are determined while taking into account individual variations in the mechanisms of nicotine seeking.
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Affiliation(s)
- Vernon Garcia‐Rivas
- Université de Bordeaux France
- INSERM U1215, Psychobiology of Drug AddictionNeuroCentre Magendie France
| | - Véronique Deroche‐Gamonet
- Université de Bordeaux France
- INSERM U1215, Psychobiology of Drug AddictionNeuroCentre Magendie France
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Vandaele Y, Noe E, Cador M, Dellu-Hagedorn F, Caille S. Attentional capacities prior to drug exposure predict motivation to self-administer nicotine. Psychopharmacology (Berl) 2018; 235:2041-2050. [PMID: 29704216 DOI: 10.1007/s00213-018-4901-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/09/2018] [Indexed: 12/24/2022]
Abstract
RATIONALE Nicotine can enhance attention and attribution of incentive salience to nicotine-associated stimuli. However, it is not clear whether inter-individual differences in attentional capacities prior to any exposure could play a role in vulnerability to nicotine self-administration. We further explored this vulnerability through pre-existing inter-individual differences in attention to a reward-predictive cue in drug-free animals. METHODS A cued version of the Fixed Consecutive Number schedule (FCN16cue) of reinforcement task was used to assess attention. This task consists in completing a long chain of sequential lever presses to obtain a reward, and examines the rats' ability to pay attention to a cue light that signals its availability. Rats were then trained to self-administer nicotine intravenously (30 μg/kg/0.1 mL). Drug-taking and seeking behaviors were investigated. RESULTS Our results showed important inter-individual differences in response for nicotine during the progressive ratio schedule of reinforcement. By comparing rats in the lower and upper quartiles of the mean breaking point, we showed that high-motivated rats were also more sensitive to the reinforcing properties of nicotine than low-motivated ones. We found that while both groups did not differ in premature responding in the FCN16cue task, high-motivated rats were more efficient in taking the cue light into account than low-motivated rats as shown by a higher proportion of optimal chains, indicating a higher level of attention to the reward-predictive cue. Moreover, it was positively correlated with higher motivation for nicotine, a hallmark of nicotine addiction. CONCLUSIONS These results suggest that higher attention to reward-associated cues prior to drug taking predicts vulnerability to nicotine-reinforcing properties.
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Affiliation(s)
- Youna Vandaele
- Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, BP31, F-33076, Bordeaux, France.,Centre National de la Recherche Scientifique, UMR 5287-Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, F-33076, Bordeaux, France
| | - Emilie Noe
- Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, BP31, F-33076, Bordeaux, France.,Centre National de la Recherche Scientifique, UMR 5287-Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, F-33076, Bordeaux, France
| | - Martine Cador
- Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, BP31, F-33076, Bordeaux, France.,Centre National de la Recherche Scientifique, UMR 5287-Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, F-33076, Bordeaux, France
| | - Françoise Dellu-Hagedorn
- Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, BP31, F-33076, Bordeaux, France. .,Centre National de la Recherche Scientifique, UMR 5287-Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, F-33076, Bordeaux, France.
| | - Stephanie Caille
- Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, BP31, F-33076, Bordeaux, France. .,Centre National de la Recherche Scientifique, UMR 5287-Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, F-33076, Bordeaux, France.
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Bevins RA, Barrett ST, Huynh YW, Thompson BM, Kwan DA, Murray JE. Experimental analysis of behavior and tobacco regulatory research on nicotine reduction. J Exp Anal Behav 2018; 110:1-10. [PMID: 29869329 DOI: 10.1002/jeab.439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 05/02/2018] [Indexed: 12/19/2022]
Abstract
With the signing of H.R. 1256, the Family Smoking Prevention and Tobacco Control Act, the United States Food and Drug Administration (FDA) gained regulatory authority over the tobacco industry. A notable clause in this Act permits the FDA to regulate nicotine yields. However, they cannot completely remove this addictive constituent from tobacco products. This restriction has prompted the FDA to seek research on the threshold dose of nicotine that does not support dependence. This idea of threshold dose has led to an interesting reframing of scientific questions. For example, some researchers studying nicotine from this regulatory perspective translated the notion of an addiction threshold to a construct thought to play a role in addiction but which can be more readily operationalized. Examples include reinforcement threshold, discrimination threshold, and reinforcer-enhancement threshold. In this Perspective Paper, we highlight the importance of behavioral pharmacology and, specifically, the experimental analysis of behavior to help establish a scientific basis for policy decisions regarding nicotine yields. Recent research, including exemplars provided herein, note vast individual differences in the effects of nicotine at a known dose. Unfortunately, the behavioral and biological factors that contribute to such individual variations remain to be understood. We believe that behavior analysts are uniquely well-positioned to contribute to this understanding.
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Affiliation(s)
| | | | | | | | - David A Kwan
- University of Nebraska - Lincoln, Lincoln, NE, USA
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Pogun S, Yararbas G, Nesil T, Kanit L. Sex differences in nicotine preference. J Neurosci Res 2017; 95:148-162. [PMID: 27870459 DOI: 10.1002/jnr.23858] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/29/2016] [Accepted: 07/11/2016] [Indexed: 01/01/2023]
Abstract
Smoking is the major cause of preventable deaths worldwide, and although there is a decline in overall smoking prevalence in developed countries, the decline in women is less pronounced than in men. Women become dependent faster and experience greater difficulties in quitting. Similar trends have been observed in animal models of nicotine/tobacco addiction. Individual differences in vulnerability to drug abuse are also observed in nicotine/tobacco addiction and point to the importance of sex differences. This Review, summarizes findings from three experimental approaches used to depict nicotine preference in animal models, intravenous and oral nicotine self-administration and nicotine-induced conditioned place preference. Nicotine preference is considered to be reflected in the animal's motivation to administer the drug (intravenously or orally) or to prefer an environment paired with the presence of the drug (conditioned place preference). These approaches all point to the importance of sex and age of the subjects; the preference of females and adolescents appear to be more pronounced than that of males and adults, respectively. A closer look at these factors will help us understand the mechanisms that underlie nicotine addiction and develop strategies to cope. Ignoring sex differences and reaching conclusions based only on studies using male subjects has resulted in erroneous generalizations in the past. Sex differences in nicotine preference have been clearly documented, and awareness on this aspect of nicotine dependence will significantly impact our success in translational research. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Sakire Pogun
- Center for Brain Research, Ege University, Izmir, Turkey
| | - Gorkem Yararbas
- Institute on Drug Abuse, Toxicology and Pharmaceutical Science, Ege University, Izmir, Turkey
| | - Tanseli Nesil
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Lutfiye Kanit
- Center for Brain Research, Ege University, Izmir, Turkey.,Physiology Department, School of Medicine, Ege University, Izmir, Turkey
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Garcia-Rivas V, Cannella N, Deroche-Gamonet V. Individual Variations in the Mechanisms of Nicotine Seeking: A Key for Research on Nicotine Dependence. Neuropsychopharmacology 2017; 42:584-586. [PMID: 27577600 PMCID: PMC5240183 DOI: 10.1038/npp.2016.176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Vernon Garcia-Rivas
- INSERM U1215, Pathophysiology of Addiction, NeuroCentre Magendie, Bordeaux, France,University of Bordeaux, Bordeaux, France
| | - Nazzareno Cannella
- INSERM U1215, Pathophysiology of Addiction, NeuroCentre Magendie, Bordeaux, France,University of Bordeaux, Bordeaux, France
| | - Véronique Deroche-Gamonet
- INSERM U1215, Pathophysiology of Addiction, NeuroCentre Magendie, Bordeaux, France,University of Bordeaux, Bordeaux, France,INSERM U1215, Pathophysiology of Addiction, Neuro Centre Magendie, 146 rue Léo Saignat, Bordeaux 33077, France, Tel: +33 5 57 57 36 80, Fax: +33 5 57 57 36 69, E-mail:
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15
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Ozga JE, Felicione NJ, Elswick D, Blank MD. Acute effects of snus in never-tobacco users: a pilot study. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2016; 44:113-119. [PMID: 27929684 DOI: 10.1080/00952990.2016.1260581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Snus tobacco characteristics may attract non-tobacco users, including relatively low, but pharmacologically active, doses of nicotine. Lower nicotine doses may limit adverse drug effects while also producing a physiologically active response. OBJECTIVES This pilot study is the first to profile the acute effects of snus on physiological and subjective assessments in a sample of never-tobacco users. METHODS Eleven never-tobacco users (five women; <100 uses/lifetime) were recruited from the community via university-approved advertisements. Using a within-subject design, participants consumed six pouches in ascending dose order (0, 1.6, 3.2, 4.8, 6.4, and 8.0 mg nicotine) within one session. The start of each snus bout was separated by 45 minutes, and pre- and post-pouch assessments included ratings of drug effects and physiological response. RESULTS The average heart rate and systolic blood pressure increased significantly from pre- to post-pouch use as a function of dose, though these increases were reliable for 8.0 mg nicotine only (p < .05). Collapsed across time, diastolic blood pressure was significantly higher for 8.0 mg nicotine than for all other doses (p < .05). Subjective ratings for "excessive salivation" and "satisfying" increased significantly from pre- to post-pouch use (p < .05), independent of dose. CONCLUSION Significant increases in physiological response at some doses suggest that users were exposed to pharmacologically active doses of nicotine. The lack of reliable subjective effects may be the product of the dosing regimen or the relatively small sample size. Findings highlight the need for identification of doses of snus that may promote abuse among naïve users.
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Affiliation(s)
- Jenny E Ozga
- a Department of Psychology , West Virginia University , Morgantown , WV , USA
| | | | - Daniel Elswick
- b Department of Behavioral Medicine and Psychiatry , West Virginia University , Morgantown , WV , USA
| | - Melissa D Blank
- a Department of Psychology , West Virginia University , Morgantown , WV , USA
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Watterson E, Spitzer A, Watterson LR, Brackney RJ, Zavala AR, Olive MF, Sanabria F. Nicotine-induced behavioral sensitization in an adult rat model of attention deficit/hyperactivity disorder (ADHD). Behav Brain Res 2016; 312:333-40. [PMID: 27363925 DOI: 10.1016/j.bbr.2016.06.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 06/23/2016] [Accepted: 06/26/2016] [Indexed: 12/23/2022]
Abstract
Attention deficit hyperactivity disorder (ADHD) is associated with increased risk of tobacco dependence. Nicotine, the main psychoactive component of tobacco, appears to be implicated in ADHD-related tobacco dependence. However, the behavioral responsiveness to nicotine of the prevalent animal model of ADHD, the spontaneously hypertensive rat (SHR), is currently underinvestigated. The present study examined the activational effects of acute and chronic nicotine on the behavior of adult male SHRs, relative to Wistar Kyoto (WKY) controls. Experiment 1 verified baseline strain differences in open-field locomotor activity. Experiment 2 tested for baseline strain differences in rotational behavior using a Rotorat apparatus. Adult SHR and WKY rats were then exposed to a 7-day regimen of 0.6mg/kg/d s.c. nicotine, or saline, prior to each assessment. A separate group of SHRs underwent similar training, but was pre-treated with mecamylamine, a cholinergic antagonist. Nicotine sensitization, context conditioning, and mecamylamine effects were then tested. Baseline strain differences were observed in open-field performance and in the number of full rotations in the Rotorat apparatus, but not in the number of 90° rotations or direction changes. In these latter measures, SHRs displayed weaker nicotine-induced rotational suppression than WKYs. Both strains expressed nicotine-induced sensitization of rotational activity, but evidence for strain differences in sensitization was ambiguous; context conditioning was not observed. Mecamylamine reversed the effects of nicotine on SHR performance. These findings are consistent with the hypothesis that a reduced aversion to nicotine (expressed in rats as robust locomotion) may facilitate smoking among adults with ADHD.
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Affiliation(s)
- Elizabeth Watterson
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States
| | - Alexander Spitzer
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States
| | - Lucas R Watterson
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States; Center for Substance Abuse Research Temple University School of Medicine, 3500N. Broad St., Medical Education and Research Bldg., 8th Floor, Philadelphia, PA 19140, United States
| | - Ryan J Brackney
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States
| | - Arturo R Zavala
- California State University, Long Beach, CA 90840, United States
| | - M Foster Olive
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States
| | - Federico Sanabria
- Arizona State University, Department of Psychology, P.O. Box 871104, Tempe, AZ 85287, United States.
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Besson M, Guiducci S, Granon S, Guilloux JP, Guiard B, Repérant C, Faure P, Pons S, Cannazza G, Zoli M, Gardier AM, Maskos U. Alterations in alpha5* nicotinic acetylcholine receptors result in midbrain- and hippocampus-dependent behavioural and neural impairments. Psychopharmacology (Berl) 2016; 233:3297-314. [PMID: 27385416 DOI: 10.1007/s00213-016-4362-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 06/20/2016] [Indexed: 12/14/2022]
Abstract
RATIONALE Evidence links alterations in α5-containing nicotinic receptors (α5*-nAChRs) to nicotine addiction. Notably, the rs16969968 polymorphism in the α5 gene (α5SNP) increases the risk for heavy smoking and impairs nicotine-rewarding properties in mice. Additional work is needed to understand how native and polymorphic α5*-nAChRs contribute to processes associated with the risk for nicotine addiction. OBJECTIVES We aimed at understanding the contribution of α5*-nAChRs to endophenotypes like increased responses to novelty and anxiety, known to promote vulnerability to addiction, and to the response of the dopamine and serotonin systems to nicotine. METHODS Behavioural phenotypes were investigated in mice lacking the α5 gene (α5(-/-)). Nicotine injections were performed to test the consequences of nicotine exposure on the phenotypes identified. Dopamine and serotonin signalling were assessed using in vivo microdialysis and electrophysiology. We used lentiviral vectors to compare the consequences of re-expressing either the α5 wild-type allele or the α5SNP in specific brain areas of α5(-/-) mice. RESULTS α5(-/-) mice did not exhibit high responses to novelty but showed decreased novelty-induced rearing behaviour together with high anxiety. Exposure to high doses of nicotine rescued these phenotypes. We identified altered spontaneous and nicotine-elicited serotonin and dopamine activity in α5(-/-) mice. Re-expression of α5 in the ventral tegmental area and hippocampus rescued rearing and anxiety levels in α5(-/-) mice, respectively. When expressing the α5SNP instead, this resulted in a knockout-like phenotype for both behaviours. CONCLUSIONS We propose that altered α5*-nAChR cholinergic signalling contributes to emotional/behavioural impairments that may be alleviated by nicotine consumption.
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Affiliation(s)
- Morgane Besson
- Neurobiologie Intégrative des Systèmes Cholinergiques, Département de Neuroscience, CNRS UMR 3571, Institut Pasteur, Paris, 75724 cedex15, France.
| | - Stefania Guiducci
- Department of Biomedical, Metabolic and Neural Sciences, Section of Physiology and Neurosciences, University of Modena and Reggio Emilia, Modena, 41121, Italy
| | - Sylvie Granon
- Neurobiologie de la Prise de Décision, Neuro-PSI, CNRS UMR 9197, Orsay, 91405, France
| | - Jean-Philippe Guilloux
- Neuropharmacologie des troubles anxieux-dépressifs et neurogénèse, Université Paris-Sud XI, Chatenay-Malabry, 91290, France
| | - Bruno Guiard
- Neuropharmacologie des troubles anxieux-dépressifs et neurogénèse, Université Paris-Sud XI, Chatenay-Malabry, 91290, France
| | - Christelle Repérant
- Neuropharmacologie des troubles anxieux-dépressifs et neurogénèse, Université Paris-Sud XI, Chatenay-Malabry, 91290, France
| | - Philippe Faure
- Neurobiologie des processus adaptatifs, Neurophysiologie et Comportement, Université Pierre et Marie Curie, Paris, 75005, France
| | - Stéphanie Pons
- Neurobiologie Intégrative des Systèmes Cholinergiques, Département de Neuroscience, CNRS UMR 3571, Institut Pasteur, Paris, 75724 cedex15, France
| | - Giuseppe Cannazza
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, 41121, Italy
| | - Michele Zoli
- Department of Biomedical, Metabolic and Neural Sciences, Section of Physiology and Neurosciences, University of Modena and Reggio Emilia, Modena, 41121, Italy
| | - Alain M Gardier
- Neuropharmacologie des troubles anxieux-dépressifs et neurogénèse, Université Paris-Sud XI, Chatenay-Malabry, 91290, France
| | - Uwe Maskos
- Neurobiologie Intégrative des Systèmes Cholinergiques, Département de Neuroscience, CNRS UMR 3571, Institut Pasteur, Paris, 75724 cedex15, France
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Besson M, Forget B. Cognitive Dysfunction, Affective States, and Vulnerability to Nicotine Addiction: A Multifactorial Perspective. Front Psychiatry 2016; 7:160. [PMID: 27708591 PMCID: PMC5030478 DOI: 10.3389/fpsyt.2016.00160] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 09/06/2016] [Indexed: 11/17/2022] Open
Abstract
Although smoking prevalence has declined in recent years, certain subpopulations continue to smoke at disproportionately high rates and show resistance to cessation treatments. Individuals showing cognitive and affective impairments, including emotional distress and deficits in attention, memory, and inhibitory control, particularly in the context of psychiatric conditions, such as attention-deficit hyperactivity disorder, schizophrenia, and mood disorders, are at higher risk for tobacco addiction. Nicotine has been shown to improve cognitive and emotional processing in some conditions, including during tobacco abstinence. Self-medication of cognitive deficits or negative affect has been proposed to underlie high rates of tobacco smoking among people with psychiatric disorders. However, pre-existing cognitive and mood disorders may also influence the development and maintenance of nicotine dependence, by biasing nicotine-induced alterations in information processing and associative learning, decision-making, and inhibitory control. Here, we discuss the potential forms of contribution of cognitive and affective deficits to nicotine addiction-related processes, by reviewing major clinical and preclinical studies investigating either the procognitive and therapeutic action of nicotine or the putative primary role of cognitive and emotional impairments in addiction-like features.
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Affiliation(s)
- Morgane Besson
- Unité de Neurobiologie Intégrative des Systèmes Cholinergiques, Department of Neuroscience, CNRS UMR 3571, Institut Pasteur , Paris , France
| | - Benoît Forget
- Unité de Neurobiologie Intégrative des Systèmes Cholinergiques, Department of Neuroscience, CNRS UMR 3571, Institut Pasteur , Paris , France
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