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
2021
Altered hippocampal astroglial metabolism is associated with aging and preserved spatial learning and memory
Ebersole J, Rose G, Eid T, Behar K, Patrylo P. Altered hippocampal astroglial metabolism is associated with aging and preserved spatial learning and memory. Neurobiology Of Aging 2021, 102: 188-199. PMID: 33774381, DOI: 10.1016/j.neurobiolaging.2021.02.015.Peer-Reviewed Original ResearchConceptsArtificial cerebrospinal fluidAstroglial metabolismNeural metabolismHippocampus-dependent cognitive functionGlutamate-glutamine cyclingFischer 344 ratsHippocampus-dependent learningAge-related decreaseAU ratsCognitive functionLiquid chromatography-tandem mass spectroscopyGlutamatergic neurotransmissionCognitive declineHippocampal slicesSpatial learningCognitive statusHippocampal subregionsCerebrospinal fluidImpaired ratsMetabolism correlateYoung adultsCompensatory changesRatsC-glucoseMemory