2021
PET Imaging Estimates of Regional Acetylcholine Concentration Variation in Living Human Brain
Smart K, Naganawa M, Baldassarri SR, Nabulsi N, Ropchan J, Najafzadeh S, Gao H, Navarro A, Barth V, Esterlis I, Cosgrove KP, Huang Y, Carson RE, Hillmer AT. PET Imaging Estimates of Regional Acetylcholine Concentration Variation in Living Human Brain. Cerebral Cortex 2021, 31: 2787-2798. PMID: 33442731, PMCID: PMC8355478, DOI: 10.1093/cercor/bhaa387.Peer-Reviewed Original ResearchConceptsACh concentrationHuman volunteersHigh ACh concentrationsMuscarinic antagonist scopolamineHealthy human volunteersHuman brainCholinergic receptorsNicotine challengeAntagonist scopolaminePreclinical studiesStriatal regionsPET scansEndogenous neurotransmittersNeuropsychiatric diseasesNonhuman primatesWhole-brain imagesDrug occupancyNicotinic ligandsClinical populationsBrainAcetylcholineDistinct functional rolesStriatumVolunteersFunctional role
2016
Nicotine and Nicotine Abstinence Do Not Interfere with GABAA Receptor Neuroadaptations During Alcohol Abstinence
Hillmer AT, Kloczynski T, Sandiego CM, Pittman B, Anderson JM, Labaree D, Gao H, Huang Y, Deluliis G, O'Malley SS, Carson RE, Cosgrove KP. Nicotine and Nicotine Abstinence Do Not Interfere with GABAA Receptor Neuroadaptations During Alcohol Abstinence. Alcohol Clinical And Experimental Research 2016, 40: 698-705. PMID: 26971694, PMCID: PMC4983773, DOI: 10.1111/acer.12997.Peer-Reviewed Original ResearchConceptsGABAA receptor availabilityPositron emission tomographyAlcohol abstinenceAlcohol withdrawalNicotine abstinenceReceptor availabilityTobacco smokingNonhuman primatesContinued nicotine useNicotine replacement therapyWeeks of abstinenceSelf-administer alcoholAdolescent male rhesus macaquesDays of abstinenceSignificant group effectMale rhesus macaquesNicotine cessationNicotine exposureReplacement therapyNicotine useAlcohol dependenceEmission tomographyDrug abstinenceSmokingNicotine
2014
Tobacco smoking interferes with GABAA receptor neuroadaptations during prolonged alcohol withdrawal
Cosgrove KP, McKay R, Esterlis I, Kloczynski T, Perkins E, Bois F, Pittman B, Lancaster J, Glahn DC, O’Malley S, Carson RE, Krystal JH. Tobacco smoking interferes with GABAA receptor neuroadaptations during prolonged alcohol withdrawal. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 18031-18036. PMID: 25453062, PMCID: PMC4273348, DOI: 10.1073/pnas.1413947111.Peer-Reviewed Original ResearchConceptsGABAA receptor levelsAlcohol withdrawalTobacco smokingReceptor levelsGABAA receptorsAlcohol-dependent smokersGABAA receptor availabilityMo of abstinenceProlonged alcohol withdrawalGABAA receptor systemCombination of alcoholNicotine blocksComorbid alcoholSustained elevationAlcohol abstinenceNicotine dependenceRobust elevationReceptor availabilityNicotine consumptionSmokingReceptor systemFirst weekNonhuman primatesControl levelsWithdrawal