Sharon E. Murphy
University of Minnesota
5 Papers
1 Citations
Sharon E. Murphy is an academic researcher from University of Minnesota. The author has contributed to research in topics: Randomized controlled trial & Nicotine. The author has an hindex of 3, co-authored 5 publications.
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Papers
A Randomized Clinical Trial Examining the Effects of Instructions for Electronic Cigarette Use on Smoking-Related Behaviors and Biomarkers of Exposure.
Dorothy K. Hatsukami,Ellen Meier,Bruce R. Lindgren,Amanda Anderson,Sarah A. Reisinger,Kaila J. Norton,Lori S Strayer,Joni Jensen,Laura Dick,Sharon E. Murphy,Steven G. Carmella,Mei Kuen Tang,Menglan Chen,Stephen S. Hecht,Richard J O'Connor,Peter G. Shields +15 more
TL;DR: Smokers instructed and incentivized to completely switch to e-cigarettes resulted in lower smoking rates and greater reductions in exposures to harmful chemicals than smokers instructed to use the product ad libitum.
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Cigarette Smokers Versus Cousers of Cannabis and Cigarettes: Exposure to Toxicants
Ellen Meier,Ryan Vandrey,Nathan Rubin,Lauren R. Pacek,Joni Jensen,Eric C. Donny,Stephen S. Hecht,Steven G. Carmella,Sharon E. Murphy,Xianghua Luo,Irina Stepanov,Joshua Ikuemonisan,Herb Severson,Mustafa al'Absi,Dorothy K. Hatsukami +14 more
TL;DR: Co-users of cannabis and tobacco appear to be exposed to greater levels of harmful chemicals, but similar levels of nicotine as cigarette smokers, and higher concentrations of biomarkers of exposure than CS.
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Mouth-Level Nicotine Intake Estimates from Discarded Filter Butts to Examine Compensatory Smoking in Low Nicotine Cigarettes.
Tracy T. Smith,Joseph S. Koopmeiners,Dorothy K. Hatsukami,Katelyn M. Tessier,Neal L. Benowitz,Sharon E. Murphy,Andrew A. Strasser,Jennifer W. Tidey,Benjamin C. Blount,Liza Valentin,Roberto Bravo Cardenas,Clifford H. Watson,James L. Pirkle,Eric C. Donny +13 more
TL;DR: Reductions in nicotine content did not result in compensatory changes in how intensively participants smoked research cigarettes, and combined with data from clinical trials showing a reduction in cigarettes smoked per day, these data suggest that a reduced nicotine content is unlikely to result in increased smoke exposure.
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Detecting participant noncompliance across multiple time points by modeling a longitudinal biomarker.
Ross L. Peterson,Joseph S. Koopmeiners,Tracy T. Smith,Sharon E. Murphy,Eric C. Donny,David M. Vock +5 more
TL;DR: A novel method that can leverage participants’ full biomarker history to detect noncompliance across multiple time points and account for the longitudinal correlation in the biomarker and compliance to more accurately identify noncompliant participants is proposed.
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A Randomized Clinical Trial of Snus Examining the Effect of Complete Versus Partial Cigarette Substitution on Smoking-Related Behaviors, and Biomarkers of Exposure.
Ellen Meier,Bruce R. Lindgren,Amanda Anderson,Sarah A. Reisinger,Kaila J. Norton,Joni Jensen,Lori S Strayer,Laura Dick,Mei Kuen Tang,Menglan Chen,Steven G. Carmella,Stephen S. Hecht,Sharon E. Murphy,Jing Yang,Irina Stepanov,Richard J O'Connor,Peter G. Shields,Dorothy K. Hatsukami +17 more
TL;DR: Directly instructing smokers to switch completely to snus, rather than using ad libitum (with no instructions to avoid cigarettes), is necessary for reductions in smoking and subsequent exposure to harmful constituents.