Journal ArticleSci Rep · May 2, 2024
How nicotine is administered has evolved from cigarettes to various delivery systems. Assessing perceived dependence on nicotine-containing products now requires accounting for product specificity while allowing comparisons across products and users. This ...
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Journal ArticleNeuropsychopharmacology · March 2024
Rapid brain accumulation is critical for the acute reinforcing effects of nicotine. Although nicotine formulation (free-base vs. protonated or salt) in electronic cigarette (E-cig) liquid affects user satisfaction, its impact on brain nicotine accumulation ...
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Journal ArticleDrug Alcohol Depend · October 1, 2023
BACKGROUND: Varenicline is efficacious for smoking cessation, but a return to smokingusually occurs after treatment ends. Electronic nicotine delivery systems (ENDS) may enhance smoking reduction and cessation by providing a behavioral substitute for smoki ...
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Journal ArticleJAMA Netw Open · September 5, 2023
IMPORTANCE: Adaptive pharmacotherapy, ie, starting a medication regimen and then modifying that regimen based on patient response, is common in many medical domains but is not common in smoking cessation. Recently, studies have found that adaptive treatmen ...
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Journal ArticlePsychopharmacology (Berl) · September 2023
RATIONALE: Electronic nicotine delivery systems (ENDS) are used by smokers seeking to reduce combustible cigarette (CC) use, but the role of nicotine replacement vs. behavioral and sensory factors is still poorly understood. We hypothesized that providing ...
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Journal ArticleNicotine Tob Res · June 9, 2023
INTRODUCTION: Based on our preliminary 11C-nicotine positron emission tomography (PET) imaging studies in humans, we speculated that greater deposition of nicotine in the respiratory tract from electronic cigarettes compared to combustible cigarettes could ...
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Journal ArticleAerosol Science and Technology · January 1, 2023
We recently developed an in vitro system for quantification of deposited mass of labeled aerosol constituents in the human airway under realistic inhalation conditions including temperature and humidity control. The in vitro system consists of the upper re ...
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ConferenceNeuropsychopharmacology · October 2022
Brain accumulation rate and magnitude are critical for the acute reinforcing effects of nicotine. Despite electronic cigarettes' (E-cigs) appeal as substitutes for traditional combustible cigarettes (C-cigs), brain nicotine accumulation (BNA) from E-cigs h ...
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Journal ArticleIntern Emerg Med · September 2022
Previous research yielded conflicting results on the association between cigarette smoking and risk of SARS-CoV-2 infection. Since the prevalence of smoking is high globally, the study of its impact on COVID-19 pandemic may have considerable implications f ...
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Journal ArticlePsychopharmacology (Berl) · September 2022
RATIONALE: Current nicotine replacement products provide a much slower onset of nicotine delivery than cigarettes, and hence are only marginally effective at supplanting cigarette smoking. Therefore, more effective forms of nicotine replacement are needed. ...
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Journal ArticleDrug Alcohol Depend · May 1, 2022
INTRODUCTION: Electronic nicotine delivery systems (ENDS) may offer a much less harmful alternative to combustible cigarettes (CC) for adult smokers unwilling or unable to relinquish nicotine. However, dual use of CC and ENDS undermines potential harm redu ...
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Journal ArticleBehav Brain Res · January 7, 2022
The habenula is an epithalamic structure through which descending connections go from the telencephalon to the brainstem, putting it in a key location to provide feedback control over the ascending projections from the brainstem to the telencephalon. The m ...
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Journal ArticleDrug Alcohol Depend · November 1, 2021
BACKGROUND: Nicotine has reinforcing effects, but there are thousands of other compounds in tobacco, some of which might interact with nicotine reinforcement. AIMS: This rat study was conducted to determine if nicotine self-administration is altered by co- ...
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Journal ArticleJmir Research Protocols · November 1, 2021
Background: After the global spread of SARS-CoV-2, research has highlighted several aspects of the pandemic, focusing on clinical features and risk factors associated with infection and disease severity. However, emerging results on the role of smoking in ...
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Journal ArticleMeasurement Journal of the International Measurement Confederation · August 1, 2021
Measurement in the social sciences has been characterized by deficient justification and underdeveloped conceptual theories. Instruments supposed to measure the same measurand typically do not provide comparable measurements. From the perspective of metrol ...
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Journal ArticleDrugs and Alcohol Today · September 10, 2020
Purpose: The purpose of this paper is to review the barriers in the dissemination of effective smoking cessation treatments and services globally. Offering tobacco users help to stop using tobacco is a key demand reduction measure outlined under Article 14 ...
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Journal ArticleNicotine Tob Res · August 24, 2020
INTRODUCTION: This study explored the efficacy of combination lorcaserin and nicotine patch for smoking cessation treatment and prevention of postsmoking cessation weight gain. METHODS: We conducted a trial in which 61 adult daily smokers were asked to qui ...
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Journal ArticleJ Nucl Med · June 2020
This study sought to determine brain nicotine kinetics from use of the increasingly popular electronic cigarette (E-cig). Methods: In 17 E-cig users (9 men and 8 women), brain uptake of nicotine after inhalation from E-cigs was directly assessed using 11C- ...
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Journal ArticlePsychopharmacology (Berl) · June 2020
RATIONALE: A variety of neural systems are involved in drug addiction, and some of these systems are shared across different addictive drugs. We have found several different types of drug treatments that successfully reduce nicotine self-administration. OB ...
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Journal ArticlePharmacol Biochem Behav · June 2020
Opiate addiction has risen substantially during the past decade. New treatments to combat opiate addiction are sorely needed. The current study was conducted to determine the acute individual and interactive effects of bupropion and dextromethorphan in a r ...
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Journal ArticleNicotine Tob Res · February 6, 2020
INTRODUCTION: Existing treatments can aid tobacco smoking cessation, but they have low efficacy. Because there is a network of neural systems involved in tobacco addiction, combination treatments may provide greater efficacy. Chronic nicotine and amitifadi ...
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ConferenceJournal of Physics Conference Series · November 29, 2019
Measurement in the social sciences is characterised by a multitude of incompatible paradigms, most of which fail to adhere to fundamental principles of measurement explicated in metrology. This has led to a fragmentation of instruments that are hard to int ...
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Journal ArticleEur J Pharmacol · October 15, 2019
Neurobehavioral bases of tobacco addiction and nicotine reinforcement are complex, involving more than only nicotinic cholinergic or dopaminergic systems. Memantine is an NMDA glutamate antagonist used to improve cognitive function in people with Alzheimer ...
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Journal ArticleJournal of Smoking Cessation · March 1, 2019
Introduction: Cigarette addiction results from both pharmacological effects of nicotine and the rewarding effects of associated cues, including respiratory tract sensations. Aims: This study sought to evaluate the initial acceptability of a non-nicotine bo ...
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Journal ArticleF1000Res · 2018
Background. Determining the public health impact of tobacco harm reduction strategies requires the assessment of consumer perception and behavior associated with tobacco and nicotine products (TNPs) with different exposure and risk profiles. In this contex ...
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Journal ArticleNicotine Tob Res · August 1, 2017
INTRODUCTION: Lorcaserin is a selective serotonin 2C receptor agonist approved by the Food and Drug Administration for chronic weight management. Preclinical data suggest that it may also be effective in smoking cessation through modulation of the dopamine ...
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Journal ArticleNicotine Tob Res · August 1, 2017
INTRODUCTION: This study replicated and extended results of a previous trial, which found that combination varenicline/bupropion treatment increased smoking abstinence in smokers who were male, highly dependent, and who did not respond to prequit nicotine ...
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Journal ArticleJ Neurosci Methods · May 1, 2017
INTRODUCTION: PET imaging with 11C-nicotine-loaded cigarettes is a valuable tool to directly assess fast nicotine kinetics and its neuropharmacological role in tobacco dependence. To eliminate variations among puffs inhaled by subjects, this work aimed to ...
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Journal ArticlePsychopharmacology (Berl) · August 2016
RATIONALE: Chronic nicotine infusion via transdermal patches has been widely shown to assist with smoking cessation. In particular, transdermal nicotine treatment prior to quitting smoking helps reduce ad libitum smoking and aids cessation Rose et al. (Nic ...
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Journal ArticleAddict Biol · July 2016
Smoking abstinence impairs executive function, which may promote continued smoking behavior and relapse. The differential influence of nicotine and non-nicotine (i.e. sensory, motor) smoking factors and related neural substrates is not known. In a fully fa ...
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Journal ArticlePharmacol Biochem Behav · March 2016
Combining effective treatments with diverse mechanisms of action for smoking cessation may provide better therapy by targeting multiple points of control in the neural circuits underlying addiction. Previous research in a rat model has shown that dextromet ...
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Journal ArticlePharmacol Biochem Behav · 2016
The ibogaine derivative 18-methoxycoronaridine (18-MC) has been found to decrease self-administration of morphine, nicotine and alcohol in rats after systemic injection. However oral dosing is the preferred route clinically. The current study evaluated the ...
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Journal ArticleEur J Pharmacol · October 5, 2015
A wider diversity of drug treatments to aid smoking cessation is needed to help tailor the most efficacious treatment for different types of smokers. This study was conducted to determine whether amitifadine, which inhibits re-uptake of dopamine, norepinep ...
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Journal ArticleNeuropsychopharmacology · October 2015
Little is known regarding the underlying neurobiology of smoking cessation. Neuroimaging studies indicate a role for the insula in connecting the interoceptive awareness of tobacco craving with a larger brain network that motivates smoking. We investigated ...
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Journal ArticleNeuropsychopharmacology · March 2015
Menthol cigarettes are likely associated with greater risks of smoking dependence than non-menthol cigarettes. We sought to test the hypothesis that menthol increases the rate of brain nicotine accumulation (BNA) during smoking and thereby enhances its add ...
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Journal ArticlePharmacol Biochem Behav · March 2015
Varenicline and bupropion each have been shown to significantly improve cessation of tobacco addiction in humans. They act through different mechanisms and the question about the potential added efficacy with their combined used has arisen. Preclinical ani ...
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Journal ArticleNicotine Tob Res · February 2015
BACKGROUND: Electronic cigarettes (e-cigarettes) represent an emerging public health issue. These devices deliver nicotine along with other constituents, including flavorants, via an inhalable aerosol. Their uptake is rapidly increasing in both adults and ...
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Journal ArticleJ Neurosci Res · February 2015
Direct actions of nicotine in the CNS appear to be essential for its reinforcing properties. However, activation of nicotinic acetylcholine receptors (nAChRs) on afferent sensory nerve fibers is an important component of addiction to, and withdrawal from, ...
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Journal ArticleNeuropsychopharmacology · November 2014
Smoking cessation results in withdrawal symptoms such as craving and negative mood that may contribute to lapse and relapse. Little is known regarding whether these symptoms are associated with the nicotine or non-nicotine components of cigarette smoke. Us ...
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Journal ArticleAm J Psychiatry · November 1, 2014
OBJECTIVE: The authors assessed the efficacy and safety of combination treatment with varenicline and sustained-release bupropion for smokers who, based on an assessment of initial smoking reduction prior to the quit date, were deemed unlikely to achieve a ...
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Journal ArticleProg Neuropsychopharmacol Biol Psychiatry · October 3, 2014
Tobacco smoking is characterized by repeated self-administration of nicotine by placing the cigarette in the mouth. The repeated hand-to-mouth self-administration is essentially a consummatory act. We recently developed a paradigm in which rats lick one of ...
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Journal ArticleJAMA Psychiatry · July 1, 2014
IMPORTANCE: Cigarette smoking leads to upregulation of nicotinic acetylcholine receptors (nAChRs) in the human brain, including the common α4β2* nAChR subtype. While subjective aspects of tobacco dependence have been extensively examined as predictors of q ...
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Journal ArticleAmerican Journal of Psychiatry · June 17, 2014
OBJECTIVE The authors assessed the efficacy and safety of combination treatment with varenicline and sustained-release bupropion for smokers who, based on an assessment of initial smoking reduction prior to the quit date, were deemed unlikely to achieve ab ...
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Journal ArticlePharmacol Biochem Behav · May 2014
Tobacco smoking has been shown to be quite addictive in people. However, nicotine itself is a weak reinforcer compared to other commonly abused drugs, leading speculation that other factors contribute to the high prevalence of tobacco addiction in the huma ...
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Journal ArticleMolecular Psychiatry · January 1, 2014
Genotype scores that predict relevant clinical outcomes may detect other disease features and help direct prevention efforts. We report data that validate a previously established v1.0 smoking cessation quit success genotype score and describe striking dif ...
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Journal ArticleMol Psychiatry · January 2014
Genotype scores that predict relevant clinical outcomes may detect other disease features and help direct prevention efforts. We report data that validate a previously established v1.0 smoking cessation quit success genotype score and describe striking dif ...
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Journal ArticleBehav Brain Res · November 1, 2013
The insular cortex has been associated with the processing of rewarding stimuli and with the neural bases of drug addiction. Ischemic damage to the insula has been associated with decreased desire to smoke cigarettes. Which component of insular function is ...
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Journal ArticleTransl Psychiatry · October 1, 2013
Smoking influences body weight such that smokers weigh less than non-smokers and smoking cessation often leads to weight increase. The relationship between body weight and smoking is partly explained by the effect of nicotine on appetite and metabolism. Ho ...
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Journal ArticleAm J Psychiatry · August 2013
OBJECTIVE The authors evaluated an adaptive smoking cessation treatment strategy in which nicotine patch treatment was initiated before a quit date, and then, depending on initial therapeutic response, either the nicotine patch was continued or alternative ...
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Journal ArticleClin Pharmacol Ther · June 2013
One way to enhance therapeutic development is through the identification and development of evaluative tools such as biomarkers. This review focuses on putative diagnostic, pharmacodynamic, and predictive biomarkers for smoking cessation. These types of bi ...
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Journal ArticleBrain Res · September 26, 2012
Previous studies have shown that molecules of the taste transduction pathway may serve as biochemical markers for chemoreceptive cells in respiratory and gastrointestinal tracts. In this study, we tested the hypothesis that brainstem neurons contain signal ...
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Journal ArticleJ Neurosci Res · April 2012
Nicotine in tobacco smoke is thought to stimulate sensory nerve fibers by receptors that are located on airway epithelial cells and on terminal branches of C-fiber afferents, but the exact neurochemical substrate that mediates the sensory effects of nicoti ...
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Journal ArticleNicotine Tob Res · December 2011
INTRODUCTION: Preference for smoking menthol cigarettes differs from individual to individual and population to population in ways that may provide higher levels of nicotine intake and contribute to smoking's morbidity and mortality. Menthol acts at sites ...
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Journal ArticleBiol Psychiatry · October 15, 2011
BACKGROUND: Previous functional magnetic resonance imaging studies have shown strong correlations between cue-elicited craving for cigarettes and activation of the superior frontal gyrus (SFG). Repetitive transcranial magnetic stimulation (rTMS) offers a n ...
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Journal ArticleJ Pharmacol Exp Ther · September 2011
Lorcaserin, a selective 5-hydroxytryptamine(2C) (5-HT(2C)) agonist, has been shown to facilitate weight loss in obese populations. It was assessed for its efficacy in reducing nicotine self-administration in young adult female Sprague-Dawley rats. The effe ...
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Journal ArticlePharmacol Biochem Behav · April 2011
Expanding the variety of treatments available to aid smoking cessation will allow the treatments to be customized to particular types of smokers. The key is to understand which subpopulations of smokers respond best to which treatment. This study used adul ...
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Journal ArticleEur J Pharmacol · January 10, 2011
Nicotine has been definitively shown to be critically involved in the neural bases of tobacco addiction. However, nicotine releases a wide variety of neurotransmitters. Nicotine-induced dopamine release has been shown to play a key role in facilitating nic ...
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Journal ArticlePhysiol Behav · December 2, 2010
Nicotine self-administered by tobacco smoking or chewing is very addictive in humans. Rat models have been developed in which nicotine is self-administered IV by the rats pressing a lever. However the reinforcing value of nicotine is much less in these mod ...
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Journal ArticleExp Clin Psychopharmacol · December 2010
Oral topical silver-containing formulations were marketed in the 1970s and 1980s as smoking deterrents, based on the finding that when using such formulations, an unpleasant taste occurs upon smoking. This approach has not been widely adopted, however, in ...
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Journal ArticleAddict Biol · October 2010
Smoking withdrawal is associated with significant deficits in the ability to initiate and maintain attention for extended periods of time (i.e. sustained attention; SA). However, the effects of smoking abstinence on the temporal dynamics of neurocognition ...
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Journal ArticleExp Clin Psychopharmacol · October 2010
The aim of this study was to evaluate pharmacokinetic and subjective responses to a prototype nicotine pyruvate (NP) aerosol generation system. In nine healthy adult daily cigarette smokers, plasma nicotine levels and subjective responses were assessed aft ...
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Journal ArticlePsychopharmacology (Berl) · August 2010
RATIONALE: Manipulations of nicotinic cholinergic receptors have been shown to influence both alcohol and nicotine intake. Sazetidine-A [6-(5(((S)-azetidine-2-yl)methoxy)pyridine-3-yl)hex-5-yn-1-ol] is a novel compound that potently and selectively desensi ...
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Journal ArticlePsychopharmacology (Berl) · July 2010
RATIONALE: Compared to nonsmokers, smokers exhibit a number of potentially important differences in regional brain structure including reduced gray matter (GM) volume and/or density in areas including frontal and cingulate cortices, thalamus, and insula. H ...
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Journal ArticlePsychopharmacology (Berl) · May 2010
RATIONALE: Nicotine and non-nicotine components of cigarette smoke contribute to its reinforcing effects; however, the specific role of each component in maintaining behavior has not yet been elucidated. OBJECTIVES: To assess the reinforcing effects of nic ...
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Journal ArticleNat Genet · May 2010
Consistent but indirect evidence has implicated genetic factors in smoking behavior. We report meta-analyses of several smoking phenotypes within cohorts of the Tobacco and Genetics Consortium (n = 74,053). We also partnered with the European Network of Ge ...
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Journal ArticleNeuroscience · March 17, 2010
The habenula is an epithalamic structure through which descending connections pass from the telencephalon to the brainstem, putting it in a key location to provide feedback control over the brainstem monoaminergic projections ascending to the telencephalon ...
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Journal ArticleProc Natl Acad Sci U S A · March 16, 2010
Tobacco smoking is a chronic, relapsing disorder that constitutes one of the primary preventable causes of death in developed countries. Two of the popular hypotheses to explain the development and maintenance of strong nicotine dependence in cigarette smo ...
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Journal ArticleJ Pharmacol Exp Ther · March 2010
Adequate treatment of tobacco addiction remains problematic. Part of the problem with treatment is a poor understanding of the pharmacologic aspects of nicotine contributing to addiction. In addition to activating nicotinic acetylcholine receptors, nicotin ...
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Journal ArticleLife Sci · February 13, 2010
AIMS: The ability to sense the bitter taste of nicotine is an important component of addiction to, and withdrawal from, cigarette smoking. alpha-Gustducin and phospholipase C-beta2 (PLC-beta2), molecules involved in the taste transduction pathway, have bee ...
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Journal ArticleMol Med · 2010
Abilities to successfully quit smoking display substantial evidence for heritability in classic and molecular genetic studies. Genome-wide association (GWA) studies have demonstrated single-nucleotide polymorphisms (SNPs) and haplotypes that distinguish su ...
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Journal ArticleMol Med · 2010
Improving and targeting nicotine replacement therapy (NRT) are cost-effective strategies for reducing adverse health consequences for smokers. Treatment studies document the efficacy of precessation NRT and support important roles for level of nicotine dep ...
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Journal ArticleNicotine Tob Res · September 2009
INTRODUCTION: Previous studies have reported that smoking abstinence rates are increased when nicotine skin patch treatment is initiated prior to the target quit smoking date, as compared with conventional treatment beginning on the quit date. We hypothesi ...
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Journal ArticleJ Neurosci Res · May 15, 2009
Previous studies have suggested that sensory mechanisms may be important components of addiction to, and withdrawal from, cigarette smoking. The sensory and respiratory responses to nicotine are mediated, in part, by bronchopulmonary C-fiber afferents. Nic ...
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Journal ArticlePsychopharmacology (Berl) · May 2009
RATIONALE: Exposure to smoking-related cues can trigger relapse in smokers attempting to maintain abstinence. OBJECTIVES: In the present study, we evaluated the effect of 24-h smoking abstinence on brain responses to smoking-related cues using functional m ...
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Journal ArticleInt J Neuropsychopharmacol · April 2009
Our group recently reported that smoking a regular cigarette (1.2-1.4 mg nicotine) resulted in 88% occupancy of brain alpha4beta2* nicotinic acetylcholine receptors (nAChRs). However, this study did not determine whether nicotine inhalation or the many oth ...
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Journal ArticlePharmacogenomics J · April 2009
Twin studies document substantial heritability for successful abstinence from smoking. A genome-wide association study has identified markers whose allele frequencies differ with nominal P<0.005 in nicotine-dependent clinical trial participants who were su ...
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Journal ArticleBehav Brain Res · January 23, 2009
Classically, it has been thought that high-affinity nicotinic receptors-containing beta2 subunits are the most important receptor subtypes for nicotinic involvement in cognitive function and nicotine self-administration, while low affinity alpha7-containin ...
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Journal ArticleMol Med · 2009
The ability to quit smoking successfully displays substantial heritability in classical and molecular genetic studies. Twin studies suggest that some of the genetics for the ability to quit overlap with genetic components of nicotine dependence, but many d ...
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Journal ArticleEur J Pharmacol · December 14, 2008
Nicotine intake constitutes a principal mechanism for tobacco addiction. In addition to primary effects on nicotinic acetylcholine receptors, nicotine has cascading effects, which may also underlie its neurobehavioral actions. Nicotine induces serotonin (5 ...
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Journal ArticleAnn N Y Acad Sci · October 2008
Cigarette smoking is a tenacious addiction that is maintained to a significant extent by the reinforcing effects of nicotine. An emerging theme in smoking cessation treatment is the development of methods for interfering with these reinforcing effects. By ...
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Journal ArticleNeuropsychopharmacology · August 2008
Exposure to smoking cues increases craving for cigarettes and can precipitate relapse. Whereas brain imaging studies have identified a distinct network of brain regions subserving the processing of smoking cues, little is known about the influence of indiv ...
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Journal ArticleNicotine Tob Res · July 2008
A randomized double-blind, active controlled, parallel group, multi-center phase II clinical trial was conducted to evaluate the efficacy of reduced-nicotine cigarettes as a novel smoking cessation treatment (under Investigational Device Exemption 69,185). ...
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Journal ArticleArch Gen Psychiatry · June 2008
CONTEXT: Smoking remains a major public health problem. Twin studies indicate that the ability to quit smoking is substantially heritable, with genetics that overlap modestly with the genetics of vulnerability to dependence on addictive substances. OBJECTI ...
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Journal ArticlePsychopharmacology (Berl) · March 2008
RATIONALE: Individuals with attention deficit hyperactivity disorder (ADHD) smoke at higher rates than the general population; however, little is known about the mechanisms underlying this comorbidity. OBJECTIVE: This study evaluated the effects of overnig ...
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Journal ArticleNeuropsychopharmacology · December 2007
Fifteen smokers participated in a study investigating brain correlates of nicotine dependence. Dependence was reduced by having subjects switch to denicotinized cigarettes for 2 weeks while wearing nicotine skin patches. Positron emission tomography (PET) ...
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Journal ArticlePsychopharmacology (Berl) · November 2007
RATIONALE: A dopamine receptor 4 variable number tandem repeat (DRD4 VNTR) polymorphism has been related to reactivity to smoking cues among smokers, but the effect of this genetic variation on brain responses to smoking cues has not been evaluated. OBJECT ...
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Journal ArticleBiochem Pharmacol · October 15, 2007
Over the last 20 years much progress has been made in understanding the pharmacologic basis of tobacco addiction. In particular, the role of nicotine in reinforcing smoking behavior has been studied from a variety of perspectives. This article discusses tw ...
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Journal ArticleAddict Behav · October 2007
Trait impulsivity and response inhibition have been shown to be related to smoking behavior. One measure of response inhibition - antisaccade performance, or the ability to inhibit looking at a novel stimulus - has been shown to be worsened by smoking abst ...
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Journal ArticleAddict Biol · September 2007
Preliminary studies suggest an extinction-based smoking cessation treatment using reduced nicotine content (RNC) cigarettes decreases self-report craving for cigarettes prior to quitting and may be an effective smoking cessation treatment. The aims of this ...
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Journal ArticleBMC Genet · April 3, 2007
BACKGROUND: Classical genetic studies indicate that nicotine dependence is a substantially heritable complex disorder. Genetic vulnerabilities to nicotine dependence largely overlap with genetic vulnerabilities to dependence on other addictive substances. ...
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Journal ArticleNicotine Tob Res · April 2007
While smokers commonly report that various foods and beverages worsen or enhance the taste of cigarettes, the prevalence and diversity of these phenomena have not been studied. We administered an open-ended questionnaire to 209 smokers asking for reports o ...
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Journal ArticlePsychopharmacology (Berl) · February 2007
RATIONALE: This review provides insight for the judicious selection of nicotine dose ranges and routes of administration for in vivo studies. The literature is replete with reports in which a dosaging regimen chosen for a specific nicotine-mediated respons ...
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Journal ArticlePsychopharmacology (Berl) · November 2006
RATIONALE: Despite established links between nicotine dependence and depression, little research has examined the effects of nicotine on depression symptoms. OBJECTIVE: This study evaluated the acute and chronic effects of transdermal nicotine in nonsmoker ...
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Journal ArticlePsychopharmacology (Berl) · June 2006
RATIONALE: Nicotine administration alters neuroactive steroids in rodent models, and serum levels of the neuroactive steroid DHEAS (dehydroepiandrosterone sulfate) appear to be higher in smokers. These molecules may be relevant to tobacco addiction and aff ...
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Journal ArticlePsychopharmacology (Berl) · March 2006
RATIONALE: A great deal of research supports the role of nicotine in cigarette addiction. However, the effectiveness of nicotine replacement therapy (NRT) as a smoking cessation treatment has fallen short of initial hopes. A key reason may be that NRT does ...
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Journal ArticleNicotine Tob Res · February 2006
Nicotine replacement therapy (NRT) is a well-established treatment to aid smoking cessation, and current products recommend using NRT only after quitting smoking. However, theoretical arguments and previous data support the hypothesis that precessation use ...
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Chapter · January 1, 2006
An overview of recent advances in nicotine-based treatments is provided, with a focus on interventions that, broadly speaking, either substitute for or antagonize nicotine inhaled from cigarettes. These treatments include nicotine replacement techniques an ...
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Journal ArticleIEEE Nuclear Science Symposium Conference Record · December 1, 2005
It is widely believed that the addictive effects of cigarette smoking derive largely from the rapid absorption of nicotine from the pulmonary system. The immediate effects of an inhaled bolus of nicotine on brain function are thought to provide potent rein ...
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Journal ArticleNeuropsychopharmacology · October 2005
Drug cues have been shown to activate brain regions involved in attention, motivation, and reward in addicted users. However, as studies have typically measured responses in only one state (ie drug abstinence), it is unclear whether observed activations re ...
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Journal ArticleExp Clin Psychopharmacol · August 2005
Using ambulatory methods for 1 day of monitoring, the authors of this study investigated the association between smoking and situational cues in 63 smokers with posttraumatic stress disorder (PTSD) and 32 smokers without PTSD. Generalized estimating equati ...
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Journal ArticleAddict Behav · May 2005
The nicotinic antagonist, mecamylamine, has been shown to reduce cue-elicited cocaine craving and to aid in smoking cessation. In a within-subjects design, 16 dependent smokers received mecamylamine (10 mg) or placebo capsules on two different days. Subjec ...
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Journal ArticleAddict Behav · February 2005
Smoking topography was measured in trauma survivors with and without posttraumatic stress disorder (PTSD) after recalling trauma-related and neutral experiences. Analysis of covariance was performed on puff topography and mood measures using nicotine depen ...
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Journal ArticleAddict Behav · June 2004
This study was designed to assess the effect of controlled deep breathing on smoking withdrawal symptoms. In two laboratory sessions, dependent smokers refrained from smoking for 4 h. During a deep breathing session, participants were instructed to take a ...
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Journal ArticleNicotine Tob Res · June 2004
The present study examined several pharmacological and behavioral treatments designed to promote extinction of the responses to rewarding cigarette smoke cues. Pharmacological treatments comprised nicotine skin patches (21 mg/24 hr) and the nicotinic acety ...
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Journal ArticleNicotine Tob Res · April 2004
Cigarettes with selective reductions in nicotine delivery have been considered as potential tools to prevent or treat nicotine dependence or to reduce harm by virtue of reduced nicotine and nitrosamine delivery. An important question is whether individuals ...
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Journal ArticleNicotine Tob Res · February 2004
Epidemiological, clinical, and laboratory evidence has shown a positive correlation between cigarette smoking and ethanol use, and previous studies suggest some commonality in the neural pathways mediating effects of nicotine and ethanol. In this study, th ...
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Journal ArticlePsychopharmacology (Berl) · September 2003
RATIONALE: Although the great majority of tobacco addiction begins during adolescence, little is known about differential nicotine effects in adolescents versus adults. OBJECTIVES: A rat model was used to determine the impact of the age of onset on nicotin ...
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Journal ArticlePharmacol Biochem Behav · September 2003
To examine mechanisms underlying satiation in cigarette smoking, 18 smokers received intravenous (i.v.) nicotine, alone or in combination with denicotinized cigarette smoke. Nicotine was administered using programmed presentations of either pulsed injectio ...
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Journal ArticlePharmacol Biochem Behav · September 2003
Previous studies of human cigarette smoking have shown that administration of the nicotinic acetylcholine receptor antagonist mecamylamine produces acute increases in smoking behavior. In contrast, studies of intravenous nicotine self-administration in ani ...
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Journal ArticleSchizophr Res · March 1, 2003
We examined the test-retest reliabilities of reported and objective measures of smoking, and the intercorrelations among these measures, in acutely psychotic patients with schizophrenia to determine whether severe psychiatric illness affects the utility of ...
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Journal ArticleAm J Psychiatry · February 2003
OBJECTIVE: The effects of acute nicotine administration and smoking on brain function were investigated in two studies, with the primary goal of identifying neural systems that mediate these effects. METHOD: In study 1, 18 healthy volunteer cigarette smoke ...
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Journal ArticleAlcohol Clin Exp Res · March 2002
BACKGROUND: Central nicotinic cholinergic receptors modify alcohol-induced mesolimbic dopamine activation, which seems to be important in the reinforcing properties of alcohol. Consistent with this model, acute administration to rats of the tertiary nicoti ...
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Journal ArticlePsychopharmacology (Berl) · December 2001
RATIONALE: Studies with laboratory animals and humans suggest that dopamine may play a role in maintaining cigarette smoking behavior via its interactions with nicotine. OBJECTIVES: This study was designed to replicate and extend previous findings showing ...
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Journal ArticleNicotine Tob Res · November 2001
This study was conducted to determine the preliminary tolerability of an oral nicotine solution with minimal behavioral intervention for smoking cessation. Twenty-five healthy volunteers who smoked at least 10 cigarettes per day and were motivated to quit ...
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Journal ArticleNicotine Tob Res · November 2001
Previous studies have found that constituents in tobacco inhibit both forms of the enzyme monoamine oxidase (MAO-A and MAO-B). This enzyme is important in the breakdown of the amine neurotransmitters, including dopamine, which is thought to mediate the rei ...
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Journal ArticleNicotine Tob Res · May 2001
Most studies of cigarette smoking and smoking cessation have focused on the psychopharmacological effects of nicotine; relatively few have explored the role of sensory aspects of cigarette smoke. Sensory aspects of cigarette smoke play a role in the mainte ...
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Journal ArticlePharmacol Biochem Behav · February 2001
Separate and combined effects of nicotine and the nicotinic antagonist mecamylamine were studied in 32 healthy volunteer smokers after overnight abstinence from smoking. Subjects participated in three sessions (3 h each), during which they wore skin patche ...
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Chapter · January 1, 2001
In the last decade there has been an upsurge in the development of new smoking cessation treatments. Although in 1990 the only pharmacologic aid approved by the U.S. Food and Drug administration was nicotine chewing gum, as of the year 2001, four modes of ...
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Journal ArticlePhysiol Behav · December 2000
Nicotinic acetylcholine systems play important roles in addiction, and nicotinic receptor stimulation stimulates dopamine release while the nicotinic antagonist mecamylamine reduces it. Reid et al. [Neuropsychopharmacology 20 (1999) 297.] recently found in ...
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Journal ArticlePharmacol Biochem Behav · September 2000
To dissociate the sensorimotor aspects of cigarette smoking from the pharmacologic effects of nicotine, smokers rated the subjective effects of nicotine-containing or denicotinized cigarettes, and intravenous (IV) nicotine or saline infusions. Three groups ...
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Journal ArticleAmerican Journal of Health Behavior · January 1, 2000
Objective: To assess the combination of the nicotine inhaler and nicotine patch for smoking cessation. Methods: Thirty healthy volunteers were enrolled into this open-label clinical trial of the combined use of nicotine inhalers and patches (15mg/16hr) for ...
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Journal ArticleDrug Alcohol Depend · September 1, 1999
An understanding of drug addiction requires knowledge of the effective drug concentrations to which receptors in the nervous system are exposed. It has often been thought that smoking of abused substances such as nicotine or cocaine produces much higher dr ...
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Journal ArticlePsychopharmacology (Berl) · April 1999
RATIONALE: The role of endogenous opiate systems in cigarette smoking remains unclear. In laboratory animals, opiate antagonists block many of the effects of nicotine, but in humans they do not consistently alter smoking behavior. OBJECTIVE: This study exp ...
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Journal ArticlePharmacol Biochem Behav · January 1999
The present study was conducted to investigate the role of peripheral nicotinic receptors in mediating the rewarding effects of cigarette smoking. Twelve cigarette smokers rated cigarettes after intravenous infusion of the short-acting peripheral nicotinic ...
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Journal ArticlePsychopharmacology (Berl) · November 1998
Nicotine has been shown to improve attentiveness in smokers and attenuate attentional deficits in Alzheimer's disease patients, schizophrenics and adults with attention-deficit/hyperactivity disorder (ADHD). The current study was conducted to determine whe ...
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Journal ArticleExp Clin Psychopharmacol · August 1998
The nicotinic antagonist mecamylamine was evaluated in a randomized smoking cessation trial. Four groups of participants (n = 20 per group) received nicotine plus mecamylamine, nicotine alone, mecamylamine alone, or no drug for 4 weeks before cessation. Af ...
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Journal ArticlePsychopharmacology (Berl) · March 1997
Studies of nicotine self-administration in animal and human subjects are discussed with respect to the behavioral paradigms employed, the effects of nicotine dose manipulations and nicotinic agonist/antagonist pretreatment, and the role of neurochemical pr ...
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Journal ArticleArch Intern Med · February 10, 1997
BACKGROUND: The nicotine patch has been widely used for smoking cessation, but not all smokers quit using the patch. Knowing which smokers are likely to succeed with the nicotine patch may improve the efficiency of nicotine patch use. OBJECTIVE: To identif ...
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Journal ArticleDrug Development Research · December 1, 1996
Although nicotine may be a necessary component of the smoking addiction, it is obvious even to the non-expert that there is far more to smoking than the delivery of nicotine alone. Among the many aspects of smoking that smokers find pleasurable, 60% of smo ...
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Journal ArticleNeuropsychopharmacology · November 1996
Nearly 90% of schizophrenics smoke cigarettes, considerably higher than the general population's rate of 25%. There is some indication that schizophrenics may smoke as a form of self-medication. Nicotine has a variety of pharmacologic effects that may both ...
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Journal ArticlePhysiol Behav · November 1996
Cigarette smoke contains numerous oxygen free radicals that may be important in smoking-related disease pathogenesis. These free radicals may overwhelm antioxidant defenses and produce a condition of oxidative stress that can result in damage to DNA and ot ...
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Journal ArticlePharmacol Biochem Behav · February 1996
This study examined the subjective and cardiovascular effects of two of the components of cigarette smoking when given separately: nicotine and airway sensations. Using a within-subjects design, six healthy volunteer smokers, age 18-45 years, who smoked at ...
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Journal ArticlePsychopharmacol Bull · 1996
Nicotine, like the psychostimulants methylphenidate and dextroamphetamine, acts as an indirect dopamine agonist and improves attention and arousal. Adults and adolescents with attention deficit hyperactivity disorder (ADHD) smoke much more frequently than ...
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Journal ArticlePsychopharmacology (Berl) · January 1996
Several lines of evidence suggest that nicotine may be useful in treating the symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD). The current study was an acute, placebo-controlled double-blind experiment to determine whether nicotine might be use ...
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Journal ArticleDrug Development Research · January 1, 1996
Pharmacotherapies for smoking cessation that can be used in a minimal behavioral intervention setting are urgently needed. The studies described in this article show that the nicotinic antagonist mecamylamine is efficacious when administered in combination ...
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Journal ArticleAnnu Rev Med · 1996
The persistence of cigarette smoking despite widespread awareness of adverse health effects results from an underlying addiction to nicotine. Unaided attempts to quit smoking are generally unsuccessful. This article discusses nicotine addition and therapeu ...
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Journal ArticleJ Trauma Stress · July 1995
The present study investigated smoking prevalence, smoking motives, demographic variables and psychological symptoms in 124 help-seeking, male Vietnam combat veterans with post-traumatic stress disorder (PTSD). A high percentage of these veterans smoked (6 ...
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Journal ArticleAnn N Y Acad Sci · May 10, 1995
Nicotine has been found to improve memory performance in a variety of tests in rats, monkeys, and humans. Interactions of nicotinic systems with dopamine (DA) systems may be important for this effect. We conducted a series of studies of nicotinic agonist a ...
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Journal ArticlePsychopharmacology (Berl) · May 1995
Ten patients with schizophrenia participated in 120-min free-smoking sessions when actively psychotic and free of antipsychotic medications, and again after the initiation of haloperidol treatment. During these free-smoking sessions they had access to ciga ...
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Journal ArticleChest · May 1995
STUDY OBJECTIVE: This study was conducted to determine if the combination of airway sensory replacement and nicotine replacement improves 10-week smoking abstinence rates over nicotine replacement alone. DESIGN: Double-blind, randomized, placebo-controlled ...
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Journal ArticlePharmacol Biochem Behav · 1995
Nicotine has been found to improve memory performance in a variety of tests, including the radial-arm maze. This improvement, together with the consistent finding of a decline in cortical nicotinic receptor concentration in Alzheimer's patients, has fueled ...
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Journal ArticleExperimental and Clinical Psychopharmacology · January 1, 1995
The effects of cigarette smoking on pain perception were evaluated in 18 healthy smokers. Thermal pain stimuli were used to assess pain detection threshold and tolerance and to collect subjective ratings of the intensity and unpleasantness of painful stimu ...
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Journal ArticleN C Med J · January 1995
Current evidence about the therapeutic potential of nicotine is strongest for ulcerative colitis. The role, if any, of nicotine therapy in Parkinson's or Alzheimer's diseases is not clear, but further research appears warranted. We need more information ab ...
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Journal ArticleExperimental and Clinical Psychopharmacology · January 1, 1995
The effects of changes in daily caffeine intake on cigarette smoking were investigated. Forty cigarette smokers consumed caffeine ad lib on a baseline day then consumed controlled multiple doses of caffeine (100 mg and 500 mg per day) for two-day trials. S ...
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Journal ArticleClin Pharmacol Ther · July 1994
OBJECTIVE: To evaluate concurrent administration of mecamylamine (nicotine antagonist) with nicotine skin patch treatment for smoking cessation. METHODS: This was a randomized, double-blind, placebo-controlled trial. Forty-eight healthy smokers who smoked ...
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Journal ArticleJ Clin Psychopharmacol · February 1994
A variety of studies have shown that nicotine skin patches are effective in promoting smoking cessation. This study replicated this effect, in addition, nicotine skin patches were found to decrease a variety of withdrawal effects, including craving for cig ...
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Journal ArticleDrug Alcohol Depend · February 1994
Previous studies have suggested that sensory cues associated with cigarette smoking can suppress certain smoking withdrawal symptoms, including craving for cigarettes. In this study we investigated the subjective effects of a cigarette substitute deliverin ...
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Journal ArticleExperimental and Clinical Psychopharmacology · January 1, 1994
The effects on smoking behavior and subjective evaluation of adding capsaicin (a pungent principle of chili pepper) to a low tar and nicotine cigarette were studied in 12 cigarette smokers. In a 4-hr session, Ss inhaled smoke from 3 types of cigarettes: (a ...
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Journal ArticleExperimental and Clinical Psychopharmacology · January 1, 1994
Separate and combined effects of nicotine and the nicotinic antagonist mecamylamine were studied. Twelve smokers rated test cigarettes after administration of mecamylamine versus placebo capsules and nicotine versus nonnicotine preload. Smoking withdrawal ...
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Journal ArticleDrug Development Research · January 1, 1994
In rats, the effects of an intracerebroventricular (ICV) nicotinic agonist nicotine (NIC), the nicotinic antagonist mecamylamine (MEC), and combinations of NIC + MEC were assessed in a radial‐arm maze (RAM). In experiment 1, exploratory behavior was assess ...
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Journal ArticleTher Drug Monit · October 1993
This study examined whether salivary nicotine concentrations would provide a useful index of plasma concentrations in studies of the effects of transdermal nicotine administration. Twenty-four subject smokers abstained from smoking for 12 h prior to admiss ...
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Journal ArticleDrug Alcohol Depend · October 1993
Sensory aspects of cigarette smoke are important for providing smoking satisfaction. In previous studies, we have found that substitution of the sensory cues of smoking with a citric acid aerosol significantly reduces craving for cigarettes and enhances sm ...
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Journal ArticleBrain Res Cogn Brain Res · October 1993
Nicotine has been found in a variety of studies to improve performance in memory tasks. This study was conducted to determine if chronic nicotine administration is useful in counteracting the working memory deficits seen after lesions of the fimbria or the ...
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Journal ArticleArch Intern Med · August 23, 1993
BACKGROUND: This study was conducted to determine the efficacy of the nicotine patch in smoking cessation when combined with self-help materials, three brief visits, and telephone counseling. METHODS: One hundred fifty-nine healthy volunteers who smoked at ...
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Journal ArticleBehav Pharmacol · April 1993
Acute and chronic nicotine treatment has been found to improve learning and memory function in a variety of tasks. In several studies we have found that chronic nicotine infusion improves working memory performance. Replicating these results, the current s ...
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Journal ArticlePharmacol Biochem Behav · April 1993
We investigated the role of nicotine dose and sensory cues in the regulation of ad lib smoke intake. The smoking behavior of 12 adult male smokers was assessed in three conditions, presenting either high-nicotine cigarette smoke (high nicotine, high sensor ...
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Journal ArticleDrug Alcohol Depend · January 1993
In this study, we evaluated the efficacy of a hand-held inhaler as an adjunct to a smoking cessation behavioral program. The inhaler delivered a citric acid aerosol with tobacco smoke flavor. Seventy-four smokers were recruited for a 3-week smoking cessati ...
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Journal ArticleNeurotoxicol Teratol · 1993
In humans and animal models there is evidence that prenatal nicotine exposure causes lasting deficits in cognitive performance. The current study examined the cognitive effects of prenatal exposure of rats to 2 mg/kg/day of nicotine. This dose did not caus ...
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Journal ArticlePharmacol Biochem Behav · January 1993
Chronic nicotine administration can decrease food consumption and body weight. Abrupt withdrawal from nicotine can cause the reverse effect, hyperphagia and rapid weight gain. In the current study, the efficacy of sertraline, a serotonin reuptake inhibitor ...
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Journal ArticleDrug Development and Industrial Pharmacy · January 1, 1993
A new transdermal nicotine delivery system (TBS-NCT)was investigated in laboratory and clinical studies with healthy cigarette smokers. Plasma nicotine concentration time profiles were characterized during and after 24-hr application of three doses of TBS- ...
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Journal ArticleBehav Neural Biol · September 1992
Nicotine has been found in a variety of species and behavioral paradigms to improve memory performance. The beneficial effect of nicotine has been seen after both acute and chronic administration. Interestingly, improved performance has been seen 24 h afte ...
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Journal ArticlePharmacol Biochem Behav · January 1992
Two key strategies for the treatment of drug dependence involve the use of agonists to substitute for the abused drug and the use of antagonists to block the reinforcing actions maintaining drug self-administration. A different strategy for the treatment o ...
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Journal ArticlePharmacol Biochem Behav · November 1991
Previous in vitro studies suggest that, with successive puffs from a marijuana cigarette, delta-9-THC becomes concentrated in the remaining uncombusted portion of the cigarette. These observations are consistent with the common practice of smoking marijuan ...
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Journal ArticlePharmacol Biochem Behav · November 1991
We investigated the effects of previously observed differences in smoking technique for marijuana (M) versus tobacco (T) on the amount of inhaled tar, the percentage retention of inhaled tar in the lung, the pre- to postcigarette boost in blood carboxyhemo ...
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Journal ArticleBrain Res Bull · July 1991
Muscarinic acetylcholine (ACh) systems have long been known to be necessary for accurate performance in cognitive tests. Nicotinic ACh systems have been shown to be involved as well. However, there is only a limited amount of information concerning the int ...
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Journal ArticlePharmacol Biochem Behav · June 1991
Previous studies have shown that the sensory cues of cigarette smoking are important for smoking satisfaction and craving reduction. Sensory cues in the absence of pharmacological doses of nicotine have been found to be moderately satisfying and to reduce ...
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Journal ArticleBr J Addict · May 1991
Research on smoking cessation has increasingly focussed on pharmacological aspects of nicotine and nicotine withdrawal. However, cigarette smoking also provides a characteristic set of sensory cues. These sensory aspects of smoking are important to address ...
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Journal ArticlePharmacol Biochem Behav · February 1991
Pharmacological blockade of muscarinic cholinergic (ACh) receptors has been found to impair choice accuracy in a variety of tasks including the radial-arm maze. The cognitive impairment caused by the muscarinic antagonist scopolamine is reversed by the dop ...
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Journal ArticlePharmacol Biochem Behav · February 1991
The interactive effects of caffeine and nicotine were studied in twelve subjects. Mood and physiologic responses to the pharmacologic components nicotine and caffeine were measured, while controlling for the sensory/behavioral aspects of smoking and coffee ...
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Journal ArticleBehav Neural Biol · November 1990
Both acetylcholinergic (ACh) and dopaminergic (DA) systems have been found to be crucial for the maintenance of accurate cognitive performance. In a series of studies examining those aspects of cognitive function revealed by the radial-arm maze, we have fo ...
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Journal ArticleDrug Alcohol Depend · October 1990
Cigarette smokers identify flavor as an important factor in the pleasure derived from smoking and for their choice of cigarette brand. The issue of cigarette flavor has received a great deal of study by cigarette manufacturers but relatively little by acad ...
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Journal ArticleDrug Alcohol Depend · June 1990
The satisfaction derived from smoking depends not only on the pharmacological effects of nicotine but also the sensory stimulation from smoke inhalation, particularly the tracheal 'scratch'. In a previous study, we found that a citric acid aerosol produces ...
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Journal ArticleClin Pharmacol Ther · March 1990
The efficacy of a transdermal nicotine patch in facilitation of smoking cessation was evaluated in a randomized double-blind trial. Sixty-five smokers who were highly dependent on cigarettes participated in the study, which included a behavioral smoking-ce ...
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Journal ArticleBehav Neural Biol · March 1990
Rats were tested for choice accuracy in an eight-arm radial maze during and after chronic administration of nicotine via subcutaneously implanted glass and Silastic capsules. Nicotine administration significantly improved choice accuracy relative to contro ...
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Journal ArticleJ Subst Abuse · 1990
We have developed a method of producing an aerosol with many of the sensory qualities of cigarette smoke, but with only 3% of the tar and nicotine and none of the carbon monoxide of a typical commercial cigarette. The aerosol was generated from a suspensio ...
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Journal ArticleBehav Neural Biol · January 1990
Choice accuracy performance in the radial-arm maze is dependent upon the integrity of both the nicotinic and muscarinic cholinergic receptors. Pharmacological blockade of either of these subtypes of cholinergic receptors with mecamylamine or scopolamine im ...
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Journal ArticleBehavior Research Methods Instruments Computers · November 1, 1989
A cigarette-smoke delivery system is described in which nicotine dosage was delimited by having the subject inhale a measured amount of smoke to a predetermined depth and duration of inhalation. A plastic syringe was used to "inject" a specified amount of ...
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Journal ArticlePharmacol Biochem Behav · August 1989
Pharmacological blockade of either nicotinic or muscarinic cholinergic receptors has been found to impair choice accuracy in the radial-arm maze. Simultaneous blockade of both of these receptor types causes an additive impairment. However, despite these co ...
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Journal ArticleBehavior Research Methods Instruments Computers · May 1, 1989
In studies of the behavioral and physiological effects of cigarette smoking, it is of critical importance to keep the dose of nicotine as constant as possible. This is difficult with smoking, because when the nicotine delivery of a cigarette is increased o ...
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Journal ArticlePharmacol Biochem Behav · April 1989
Eight subjects evaluated various qualities of cigarette smoke after being given a range of doses (0, 2.5, 10 and 20 mg) of the nicotinic receptor blocker mecamylamine. In one test condition, subjects were given either high or low nicotine tobacco smoke to ...
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Journal ArticleAddict Behav · 1989
There is a widespread belief that cigarette smoking alleviates stress. The literature reveals conflicting results on the anxiolytic effects of smoking. This study was designed to replicate a report that smoking (a) reduced subjective anxiety induced by str ...
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Journal ArticleAliment Pharmacol Ther · April 1988
The effect of cigarette smoking and its active component, nicotine, on the gastric emptying of solid food was assessed in a randomized double-blind crossover design. Ten regular smokers were studied after a 6 h fast and least 18 h after their last cigarett ...
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Journal ArticleN Engl J Med · February 11, 1988
To compare the pulmonary hazards of smoking marijuana and tobacco, we quantified the relative burden to the lung of insoluble particulates (tar) and carbon monoxide from the smoke of similar quantities of marijuana and tobacco. The 15 subjects, all men, ha ...
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Journal ArticleJ Subst Abuse · 1988
Several recent studies have tried to link endogenous opioid peptides (endorphins) with smoking reinforcement. Karras and Kane (1980) showed a one-third decrease in smoking after administration of the opiate antagonist naloxone. However, Nemeth-Coslett and ...
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Journal ArticleChest · December 1987
We tested the ability of a citric acid aerosol to simulate the tracheal sensations produced by cigarette smoke and to satisfy smokers' desire for cigarettes. Fifteen smokers rated puffs from their own brand of cigarette, citric acid aerosol, a low tar and ...
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Journal ArticlePharmacol Biochem Behav · October 1987
We developed a method of refining tobacco smoke to deliver sensory components of cigarette smoking while minimizing the delivery of nicotine and other toxic smoke constituents. In the first experiment, smokers rated puffs of their own brands of cigarette, ...
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Journal ArticleBehavior Research Methods Instruments Computers · May 1, 1987
A simple device for monitoring cigarette smokers' intake of tar and nicotine is described. This device divided the mainstream smoke into two parallel paths, one containing seven parallel capillary tubes and the other containing one capillary tube; a Cambri ...
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Journal ArticleAlcohol Drug Res · 1987
The interactive effects of caffeine and cigarette smoking were studied in fifteen subjects. Four experimental sessions presented either decaffeinated coffee or caffeinated coffee (containing 150 mg caffeine base), followed 20 min later by a smoking or nons ...
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Journal ArticlePharmacol Biochem Behav · February 1986
We conducted two experiments to explore the role of nicotine in the maintenance of cigarette smoking behavior. In Experiment 1 we determined that, compared to 0 or 2 mg injections, an injection of 4 mg nicotine base into the filter of non-nicotine cigarett ...
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Journal ArticleClin Pharmacol Ther · October 1985
The effects of transdermal nicotine in 10 cigarette smokers were studied in a within-subjects, double-blind design. Either 8 mg nicotine base in a 30% aqueous solution or an inactive placebo solution was applied to intact skin under a polyethylene patch. S ...
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Journal ArticlePharmacol Biochem Behav · August 1985
Cigarette smokers were presented with controlled doses of cigarette smoke to determine whether the resulting reduction in cigarette craving depended upon perceiving the sensory qualities of the smoke. Cigarette craving was assessed before and after inhalin ...
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Journal ArticleAddict Behav · 1985
Most people would agree that a relationship exists between drinking alcohol and smoking cigarettes, but there is very little empirical evidence demonstrating a direct causal association. Study of the relationship has been hampered by the lack of a simple l ...
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Journal ArticleDrug Alcohol Depend · May 1984
The physiological response to nicotine topically applied to the skin was measured in an adult male volunteer. Nicotine base (9 mg) was applied in a 30% aqueous solution to intact skin on the underside of the forearm. Salivary nicotine, heart rate and blood ...
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Journal ArticlePharmacol Biochem Behav · January 1984
In order to test the theory that nicotine is a reinforcing constituent in tobacco, smokers' nicotine preference was assessed after two hours' cigarette deprivation and immediately after smoking two cigarettes. Preference was measured by allowing subjects t ...
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Journal ArticleAddict Behav · 1984
Subjective response to cigarette smoking was assessed after partial blockade of upper and lower airway sensations by the topical application of lidocaine. Pack-a-day smokers were given one cigarette after each of four conditions: (1) mouth anesthesia, obta ...
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Journal ArticleAddict Behav · 1984
Cigarette smokers were presented with puffs from either high (2.5 mg), medium (1.5 mg) or low (.5 mg) nicotine cigarettes in order to determine their ability to discriminate nicotine delivery in tobacco smoke. Puffs were presented in random order during ea ...
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Journal ArticlePharmacol Biochem Behav · March 1983
Smoking behavior in response to an increased presentation of cigarettes was investigated to determine whether compensatory changes occurred in order to maintain a constant intake of tobacco smoke. The lighting of each cigarette was paced at both twice and ...
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Journal ArticleAddict Behav · 1983
Cigarette smokers were exposed to three conditions within a single session: stagefright anxiety, monotonous concentration, and a relaxation control. One cigarette was lit during the second 10-minute half of each condition, and smoking topography (number of ...
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Journal ArticleActa Genet Med Gemellol (Roma) · 1983
A study of cigarette smoking was undertaken in a pair of craniopagus twins to determine how a transfer of products of smoking is occurring between the twins. Alternately and independently, one twin smoked a nicotine-free cigarette, then the second twin smo ...
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Journal ArticleBehavior Research Methods Instrumentation · November 1, 1982
A smoke-mixing device is described that allows individuals to select their preferred nicotine deliveries from cigarette smoke on a puff-by-puff basis. This methodology offers advantages over previous strategies to investigate the role of nicotine as a rein ...
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Journal ArticleLearning and Motivation · January 1, 1981
Human subjects were exposed to contingencies which programmed aversive tones (100 db). Two types of contingencies were employed: self-confirming (i.e., self-fulfilling prophecies), in which the aversive tone was occasioned by the prediction it was about to ...
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