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
Impact of delivery rate on the acute response to intravenous nicotine: A human laboratory study with implications for regulatory science
De Aquino JP, MacLean RR, Gueorguieva R, DeVito EE, Eid T, Sofuoglu M. Impact of delivery rate on the acute response to intravenous nicotine: A human laboratory study with implications for regulatory science. Addiction Biology 2022, 27: e13161. PMID: 35229960, PMCID: PMC8903077, DOI: 10.1111/adb.13161.Peer-Reviewed Original ResearchConceptsAbuse potentialPositive subjective drug effectsSubjective drug effectsHuman laboratory studiesPositive subjective effectsAttention functionSmoking urgesOvernight abstinencePotential therapeutic effectsEffects of nicotineHeart rate increaseDelivery rateDependent smokersExperimental sessionsSubjective effectsNicotine dependenceIntravenous nicotineBlood pressureSaline infusionAcute effectsTherapeutic effectHeart rateDrug effectsAcute responseCrossover design
2021
Threshold dose for intravenous nicotine self-administration in young adult non-dependent smokers
MacLean RR, DeVito EE, Eid T, Parida S, Gueorguieva R, Sofuoglu M. Threshold dose for intravenous nicotine self-administration in young adult non-dependent smokers. Psychopharmacology 2021, 238: 2083-2090. PMID: 33796907, PMCID: PMC8715498, DOI: 10.1007/s00213-021-05833-8.Peer-Reviewed Original ResearchConceptsDose of nicotineNicotine reinforcementHigh doseSubjective effectsHuman laboratory studiesYoung adult smokersNicotine self-administration modelNon-dependent smokersOvernight nicotine abstinenceEffects modelSelf-administration modelSelf-administration procedureNicotine doseAdult smokersMethodsYoung adultsObjectivesThe current studyNicotine abstinenceNicotine addictionHigh dosesLow dosesPlaceboThreshold doseReinforcement thresholdTobacco productsDose
2018
Acute effects of inhaled menthol on the rewarding effects of intravenous nicotine in smokers
Valentine GW, DeVito EE, Jatlow PI, Gueorguieva R, Sofuoglu M. Acute effects of inhaled menthol on the rewarding effects of intravenous nicotine in smokers. Journal Of Psychopharmacology 2018, 32: 986-994. PMID: 29788802, PMCID: PMC6329876, DOI: 10.1177/0269881118773972.Peer-Reviewed Original ResearchConceptsPositive subjective effectsPositive subjective responsesIntravenous nicotineNicotine metabolismSubjective effectsNicotine metabolite ratioYoung adult smokersSlower nicotine metabolismTest sessionsSubjective responsesSevere nicotine withdrawalMenthol inhalationNicotine withdrawalAcute effectsAdult smokersWithdrawal severityNicotine infusionRewarding effectsSmokersSmoking urgesChronic exposureMetabolite ratiosAversive effectsMenthol conditionsElectronic cigarettes
2015
Intravenous Nicotine Self-Administration in Smokers: Dose–Response Function and Sex Differences
Jensen KP, DeVito EE, Valentine G, Gueorguieva R, Sofuoglu M. Intravenous Nicotine Self-Administration in Smokers: Dose–Response Function and Sex Differences. Neuropsychopharmacology 2015, 41: 2034-2040. PMID: 26717881, PMCID: PMC4908640, DOI: 10.1038/npp.2015.373.Peer-Reviewed Original ResearchConceptsBlood pressureHeart rateFemale smokersRandomized double-blind crossover designDouble-blind crossover designSubjective effectsTobacco-dependent subjectsSex differencesDiastolic blood pressureIntravenous Nicotine Self-AdministrationSelf-administration ratesNicotine Self-AdministrationDose-response functionNicotine dosesNicotine doseTobacco dependenceIntravenous nicotineCrossover designSelf-AdministrationReinforcement thresholdSmokersInfusionNicotineForced-choice trialsAversive responses