2012
DOI: 10.1038/npp.2011.336
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Rapid Nicotine Clearance is Associated with Greater Reward and Heart Rate Increases from Intravenous Nicotine

Abstract: The ratio of nicotine metabolites (trans-3 0 -hydroxycotinine (3HC) to cotinine) correlates with nicotine clearance. In previous studies, high nicotine metabolite ratio (NMR) predicted poor outcomes for smoking cessation treatment with nicotine patch. The underlying mechanisms that associate NMR with treatment outcomes have not been fully elucidated. A total of 100 smokers were divided into quartiles based on their baseline plasma NMR. Following overnight abstinence, smokers received saline followed by escalat… Show more

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Cited by 103 publications
(96 citation statements)
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“…Another strength of this study was the biochemical verification of overnight abstinence and assessment of NMR, a factor relevant to subjective nicotine response (Sofuoglu et al, 2012) and previously proposed to contribute to sex differences in nicotine response (Benowitz et al, 2006). Importantly, sex and phase groups did not differ on NMR in this sample, suggesting our findings were likely not accounted for by nicotine metabolism differences.…”
Section: Strengths and Limitationsmentioning
confidence: 66%
See 1 more Smart Citation
“…Another strength of this study was the biochemical verification of overnight abstinence and assessment of NMR, a factor relevant to subjective nicotine response (Sofuoglu et al, 2012) and previously proposed to contribute to sex differences in nicotine response (Benowitz et al, 2006). Importantly, sex and phase groups did not differ on NMR in this sample, suggesting our findings were likely not accounted for by nicotine metabolism differences.…”
Section: Strengths and Limitationsmentioning
confidence: 66%
“…These doses have previously been shown to be well tolerated, yet produce robust physiological and both positive and negative subjective effects in men and women Sofuoglu et al, 2008Sofuoglu et al, , 2011Sofuoglu et al, , 2012. Doses were administered in an escalating manner to avoid nicotine carryover into the saline dose and as a safety precaution.…”
Section: Methodsmentioning
confidence: 99%
“…When smokers were divided into quartiles based on NMR, the fastest metabolizers had a greater likelihood of abstinence from smoking with bupropion treatment than the slowest metabolizers (Patterson et al, 2008). According to the same quartile system, the slowest metabolizers had lower nicotine dependence, reported less cigarette craving following overnight abstinence, and less drug liking after intravenous nicotine compared to the fastest metabolizers (Sofuoglu et al, 2012). While NMR (considered as a continuous variable) was not associated with decreases in nicotine dependence produced by smoking reduced-nicotine cigarettes over 6 months in one study (Bandiera et al, 2015), the interaction of nicotine dose and NMR on the acute effects of smoking are unknown.…”
Section: Introductionmentioning
confidence: 99%
“…22 Women also metabolize nicotine more quickly, especially women who are pregnant or taking oral contraceptives, suggesting a link to increased estrogen levels. 23,24 A relationship between estrogen and nicotine metabolism has important clinical implications because quicker metabolism of nicotine is associated with more intense smoking, 25 greater reward from nicotine, 26 greater cravings to smoke after overnight smoking abstinence, 26 and poorer cessation outcomes. 27 Similar to estrogen, progesterone appears to have an impact on smoking behavior, but with effects in the opposite direction.…”
Section: Introductionmentioning
confidence: 99%