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 adultsExamining racial differences in smoking outcomes among smokers enrolled in an intravenous nicotine infusion study
Schwartz E, Palmisano A, Gueorguieva R, DeVito E, Sofuoglu M. Examining racial differences in smoking outcomes among smokers enrolled in an intravenous nicotine infusion study. Addictive Behaviors 2023, 140: 107615. PMID: 36640662, PMCID: PMC9911383, DOI: 10.1016/j.addbeh.2023.107615.Peer-Reviewed Original ResearchConceptsSmoking-related illnessesNegative drug effectsNicotine clearanceOvernight abstinenceNicotine infusionDrug effectsMentholated cigarettesWhite individualsBlack individualsAcute pharmacologic effectsSmoking-related morbiditySmoking-related diseasesAdministration of nicotineSmoking-related outcomesSubjective drug effectsShort-term abstinenceLower ratesTrend level differenceLarge racial disparitiesNicotine administrationNicotine dosesTrend-level significancePharmacologic effectsTreatment strategiesOutcome measures
2022
Development of pulsed intravenous nicotine infusions as a model for inhaled nicotine in humans
De Aquino JP, DeVito EE, Xie C, Meyerovich J, Parida S, Gueorguieva R, Sofuoglu M. Development of pulsed intravenous nicotine infusions as a model for inhaled nicotine in humans. Psychopharmacology 2022, 239: 2809-2818. PMID: 35554617, DOI: 10.1007/s00213-022-06162-0.Peer-Reviewed Original ResearchImpact 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
The Effects of Inhaled Flavors on Intravenous Nicotine
MacLean RR, Gueorguieva R, DeVito EE, Peltier MR, Parida S, Sofuoglu M. The Effects of Inhaled Flavors on Intravenous Nicotine. Experimental And Clinical Psychopharmacology 2021, 29: 615-624. PMID: 32463279, PMCID: PMC7704548, DOI: 10.1037/pha0000394.Peer-Reviewed Original ResearchConceptsCigarette smokersIntravenous nicotineE-cigarettesYoung adult cigarette smokersSubject cross-over designAdult cigarette smokersMain outcome measuresPeak heart rateHigher following administrationCross-over designAcute rewarding effectsPresent studyFollowing administrationAcute effectsOutcome measuresHeart rateRewarding effectsTobacco cigarettesSmoking urgesRewarding propertiesNicotineAddictive effectsHigher cravingMenthol flavorsThousands of flavorsThreshold 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
2019
Modulation of “Protective” Nicotine Perception and Use Profile by Flavorants: Preliminary Findings in E-cigarettes
DeVito EE, Jensen KP, O’Malley S, Gueorguieva R, Krishnan-Sarin S, Valentine G, Jatlow PI, Sofuoglu M. Modulation of “Protective” Nicotine Perception and Use Profile by Flavorants: Preliminary Findings in E-cigarettes. Nicotine & Tobacco Research 2019, 22: 771-781. PMID: 30995302, PMCID: PMC7368338, DOI: 10.1093/ntr/ntz057.Peer-Reviewed Original ResearchConceptsSubjective drug effectsNicotine-containing e-liquidsSelf-administered more nicotineAversive effectsSingle testing dayE-cigarettesSelf-reported preferencesE-cigarette appealRs16969968 genotypePreliminary findingsUnflavored e-liquidsIndividual differencesDrug effectsAd libitumE-liquidsAversive actionsTobacco productsNicotine effectsLow-risk groupNicotine-free e-liquidsPalatable flavorAversivenessTesting daysNicotinic acetylcholine receptor subunit genesNumber of puffs
2018
E-cigarette nicotine dose and flavor: Relationship with appeal, choice, and tobacco use amongst veterans with comorbid psychiatric disorders
DeVito E, Buta E, Sofuoglu M. E-cigarette nicotine dose and flavor: Relationship with appeal, choice, and tobacco use amongst veterans with comorbid psychiatric disorders. Addictive Behaviors 2018, 92: 53-57. PMID: 30583091, PMCID: PMC6699503, DOI: 10.1016/j.addbeh.2018.12.013.Peer-Reviewed Original ResearchConceptsElectronic cigarettesNicotine levelsTobacco useTake-home trialOne monthNicotine electronic cigarettesHigh nicotine dependenceComorbid psychiatric disordersSmoking-related outcomesCombustible cigarette useNicotine e-liquidCombustible tobacco useBaseline characteristicsCessation aidCigarette smokersSmoking characteristicsNicotine doseWorse outcomesEC efficacyNicotine dependenceSmokersPsychiatric disordersCigarette useCombustible cigarettesSmokingBiochemical, demographic, and self-reported tobacco-related predictors of the acute heart rate response to nicotine in smokers
Jensen KP, Valentine G, Buta E, DeVito EE, Gelernter J, Sofuoglu M. Biochemical, demographic, and self-reported tobacco-related predictors of the acute heart rate response to nicotine in smokers. Pharmacology Biochemistry And Behavior 2018, 173: 36-43. PMID: 30107183, PMCID: PMC6125200, DOI: 10.1016/j.pbb.2018.08.004.Peer-Reviewed Original ResearchConceptsAcute heart rate responseHeart rate responseNicotine infusionHigher nicotine metabolite ratioTobacco harm reduction approachesRate responseGreater withdrawal symptomsNicotine metabolite ratioBlood-based biomarkersNicotine delivery systemsWarrants further investigationHarm reduction approachWithdrawal symptomsCardiovascular functionLower nicotine levelsTobacco useMetabolite ratiosNicotine levelsSmokeless productsHigher cortisolSmokersHR effectsStimulatory effectNicotineDemographic characteristicsAcute 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 cigarettesE-cigarettes: Impact of E-liquid Components and Device Characteristics on Nicotine Exposure
DeVito EE, Krishnan-Sarin S. E-cigarettes: Impact of E-liquid Components and Device Characteristics on Nicotine Exposure. Current Neuropharmacology 2018, 16: 438-459. PMID: 29046158, PMCID: PMC6018193, DOI: 10.2174/1570159x15666171016164430.Peer-Reviewed Original ResearchConceptsNicotine exposureE-cigarettesNicotine dependenceEffective smoking cessation toolPrimary addictive componentSmoking cessation toolElectronic cigarette useE-liquidsAddictive componentCessation toolNicotine absorptionNicotine useCigarette usePuff topographyNicotine yieldE-liquid constituentsExposureCigarettesE-cigarette use behaviorsCurrent knowledgeUse behaviorsUnderstanding factorsSmokersFactorsCommon factors
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 responsesA CHRNA5 Smoking Risk Variant Decreases the Aversive Effects of Nicotine in Humans
Jensen KP, DeVito EE, Herman AI, Valentine GW, Gelernter J, Sofuoglu M. A CHRNA5 Smoking Risk Variant Decreases the Aversive Effects of Nicotine in Humans. Neuropsychopharmacology 2015, 40: 2813-2821. PMID: 25948103, PMCID: PMC4864657, DOI: 10.1038/npp.2015.131.Peer-Reviewed Original ResearchMeSH KeywordsAdultBlood PressureCognition DisordersCotinineFemaleGenome-Wide Association StudyHeart RateHumansMaleMiddle AgedNerve Tissue ProteinsNeuropsychological TestsNicotineNicotinic AgonistsPolymorphism, Single NucleotideReceptors, NicotinicSmokingSubstance Withdrawal SyndromeSurveys and QuestionnairesConceptsAversive effectsHeavy smokingRisk allelesSmoking-related disordersAfrican American smokersCHRNA5-CHRNA3Doses of nicotineHigh nicotine doseNicotine administrationIntravenous doseNicotine effectsNicotine doseAmerican smokersWithdrawal severityOvernight abstinenceAcute responseAA subjectsCardiovascular reactivityCHRNB4 gene clusterNicotineEuropean AmericansAversive responsesAdministration sessionsSmokingCognitive performance
2014
Pharmacogenetics of nicotine addiction: role of dopamine
Herman AI, DeVito EE, Jensen KP, Sofuoglu M. Pharmacogenetics of nicotine addiction: role of dopamine. Pharmacogenomics 2014, 15: 221-234. PMID: 24444411, PMCID: PMC4154357, DOI: 10.2217/pgs.13.246.Peer-Reviewed Original Research
2013
Subjective, Physiological, and Cognitive Responses to Intravenous Nicotine: Effects of Sex and Menstrual Cycle Phase
DeVito EE, Herman AI, Waters AJ, Valentine GW, Sofuoglu M. Subjective, Physiological, and Cognitive Responses to Intravenous Nicotine: Effects of Sex and Menstrual Cycle Phase. Neuropsychopharmacology 2013, 39: 1431-1440. PMID: 24345818, PMCID: PMC3988546, DOI: 10.1038/npp.2013.339.Peer-Reviewed Original ResearchConceptsSubjective drug effectsMenstrual cycle phaseDrug effectsNicotine dependenceMenstrual cycle phase effectsFollicular phase womenSerious public health concernCycle phase effectsSymptoms of withdrawalLuteal phase femalesPublic health concernMenstrual phase differencesNicotine administrationOptimal treatmentIntravenous nicotineLuteal phaseOvernight abstinenceSmoking behaviorCycle phaseNicotine responseGreater physiological responsesBiochemical confirmationHealth concernEffects of sexBetter cognition