Neuropharmacology
Department of Psychology, University of New Hampshire, USA. Electronic address:
Published: April 2019
Bupropion and varenicline are the top two smoking cessation interventions that are marginally successful in increasing abstinence rates when compared to placebo. Although smokers vary in their history and pattern of tobacco use, there is a significant gap in addressing this individual variability with individually targeted treatments. The present study takes the initial step towards a better understanding of individual differences in treatment outcomes by assessing the effect of bupropion or varenicline on nicotine self-administration in rats. Rats were first assessed for their individual economic demand for sucrose and then for self-administered nicotine (0.03 mg/kg/inf; 2 h sessions). We then examined the effect of bupropion (0, 10, 30, 60 mg/kg) or varenicline (0, 0.1, 1.0, 3.0 mg/kg) pretreatment on individual rates of nicotine self-administration using progressive ratio schedule of reinforcement. Thereafter, rats were subjected to four rounds of extinction and reinstatement tests. We found that individual demand for sucrose did not predict individual demand for nicotine. Acute pretreatments with bupropion or varenicline were most effective at decreasing nicotine self-administration in rats that had a higher demand for nicotine. Rats with higher demand for nicotine also showed higher magnitude of responding in extinction and during nicotine-triggered reinstatement tests. Although the acute treatment protocol employed in this study is an important initial step towards a better understanding of individual treatment effects, future research modeling chronic treatment approaches will be needed to further extend our findings.
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http://dx.doi.org/10.1016/j.neuropharm.2018.12.031 | DOI Listing |
Cochrane Database Syst Rev
January 2025
Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Background: People from lower socioeconomic groups are more likely to smoke and less likely to succeed in achieving abstinence, making tobacco smoking a leading driver of health inequalities. Contextual factors affecting subpopulations may moderate the efficacy of individual-level smoking cessation interventions. It is not known whether any intervention performs differently across socioeconomically-diverse populations and contexts.
View Article and Find Full Text PDFSwiss Med Wkly
November 2024
Department of Medicine, University of California at San Francisco, San Francisco, CA, USA.
Cigarette smoking remains an enormous public health problem causing millions of preventable deaths annually worldwide. Although safe and efficient smoking cessation pharmacotherapies such as nicotine replacement products and the medications varenicline and bupropion are available, long-term abstinence rates remain low and new approaches to help smokers successfully quit smoking are needed. In recent years, electronic nicotine delivery systems such as e-cigarettes and heated-tobacco products, and novel smokeless nicotine delivery products like nicotine pouches have gained widespread popularity.
View Article and Find Full Text PDFArthritis Care Res (Hoboken)
January 2025
Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX.
Objective: In this study, we explored physicians' level of experience with patients with rheumatoid arthritis (RA) who used tobacco; their views on the effects of tobacco use on the efficacy of RA treatments; and their experiences and attitudes with respect to tobacco cessation programs.
Methods: We conducted qualitative, semi-structured interviews of 20 physicians (10 primary-care physicians [PCPs] and 10 rheumatologists).
Results: The physicians had been in clinical practice for a mean of 9.
JAMA Netw Open
January 2025
Department of Behavioural Science and Health, University College London, London, United Kingdom.
Importance: A wide range of medications, noncombustible nicotine products, behavioral support, and alternative treatments are available in England to help people stop smoking. Understanding their effectiveness outside of clinical trial settings can support informed decision-making.
Objectives: To provide up-to-date estimates of the prevalence of different smoking cessation aids and associations with quit success and to explore moderation by socioeconomic position.
Am J Psychiatry
December 2024
Department of Behavioral Science, University of Texas MD Anderson Cancer Center, Houston (Kypriotakis, Cinciripini, Minnix, Beneventi, Karam-Hage, Blalock); Department of Pediatrics, University of Texas Medical School at Houston (Green); Pfizer Inc., New York (Lawrence); Department of Psychiatry, University of California, San Diego, La Jolla (Anthenelli); Department of Psychiatry, University of Colorado, Aurora (Morris).
Objective: The aim of this study was to compare the safety and efficacy of the leading smoking cessation medications among individuals with current versus past major depressive disorder (MDD).
Methods: This was a secondary analysis of a randomized, double-blind trial over 12 weeks with varenicline or bupropion, followed by a 12-week assessment, in participants ages 18-75 with past (N=2,174) or current (N=451) MDD or without psychiatric disorders (N=4,028). Interventions included 12 weeks of pharmacotherapy with placebo, nicotine replacement therapy (NRT; nicotine patch), bupropion, or varenicline, and brief counseling.
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