2023
Threshold for the Pleasurable Effects of Nicotine Are Lower Than Its Reinforcing Effects During Self-Administration
MacLean RR, Eid T, Parida S, Gueorguieva R, DeVito EE, Sofuoglu M. Threshold for the Pleasurable Effects of Nicotine Are Lower Than Its Reinforcing Effects During Self-Administration. Experimental And Clinical Psychopharmacology 2023, 31: 37-45. PMID: 35254839, PMCID: PMC9448824, DOI: 10.1037/pha0000556.Peer-Reviewed Original ResearchConceptsNicotine metabolite ratioDose of nicotineNicotine reinforcementSubjective effectsDiscriminative stimulus effectsHeart rate increaseDoses of nicotineSelf-administration procedureSubjective positive effectsDaily smokersBaseline cravingIntravenous nicotineOvernight abstinenceCigarette cravingDrug effectsMetabolite ratiosStimulus effectsSecondary analysisPlaceboSelf-AdministrationNicotine choiceTobacco productsNicotinePleasurable effectsYoung adults
2022
Plasma Menthol Glucuronide as a Biomarker for the Behavioral Effects of Menthol and Nicotine in Humans
Gueorguieva R, Schwartz EKC, MacLean RR, DeVito EE, Eid T, Wu R, O’Malley S, Sofuoglu M. Plasma Menthol Glucuronide as a Biomarker for the Behavioral Effects of Menthol and Nicotine in Humans. Frontiers In Pharmacology 2022, 13: 844824. PMID: 35431934, PMCID: PMC9009207, DOI: 10.3389/fphar.2022.844824.Peer-Reviewed Original ResearchSubjective drug effectsPlasma Mg concentrationHeart rateDrug effectsIntravenous deliveryNon-menthol cigarette smokersPlacebo-controlled studyTest sessionsCigarette smokersMenthol smokersAcute effectsIntravenous nicotineGlucuronide concentrationsMAIN OUTCOMENicotine infusionMenthol glucuronideSecondary analysisPlasma MgE-cigarettesBehavioral effectsMenthol exposureNicotineSmokersPhysiological effectsE-liquids