2017
The Effect of Treatment with Guanfacine, an Alpha2 Adrenergic Agonist, on Dopaminergic Tone in Tobacco Smokers: An [11C]FLB457 PET Study
Sandiego CM, Matuskey D, Lavery M, McGovern E, Huang Y, Nabulsi N, Ropchan J, Picciotto MR, Morris ED, McKee SA, Cosgrove KP. The Effect of Treatment with Guanfacine, an Alpha2 Adrenergic Agonist, on Dopaminergic Tone in Tobacco Smokers: An [11C]FLB457 PET Study. Neuropsychopharmacology 2017, 43: 1052-1058. PMID: 28944773, PMCID: PMC5854798, DOI: 10.1038/npp.2017.223.Peer-Reviewed Original ResearchConceptsTobacco smokersGuanfacine treatmentPositron emission tomographyTobacco smokingDA releaseDopaminergic toneDopamine releaseAmphetamine-induced DA releaseTobacco smoking cessationCortical dopamine releaseExtrastriatal brain regionsAlpha2-adrenergic agonistExtrastriatal dopamine releaseEffect of treatmentBaseline BPNDSmoking cessationReceptor radiotracerAdrenergic agonistsPET scansAnimal modelsBrain regionsEmission tomographyPET studiesDopamine signalingSmokers
2015
Reference Region Modeling Approaches for Amphetamine Challenge Studies with [11C]FLB 457 and PET
Sandiego CM, Gallezot JD, Lim K, Ropchan J, Lin SF, Gao H, Morris ED, Cosgrove KP. Reference Region Modeling Approaches for Amphetamine Challenge Studies with [11C]FLB 457 and PET. Cerebrovascular And Brain Metabolism Reviews 2015, 35: 623-629. PMID: 25564239, DOI: 10.1038/jcbfm.2014.237.Peer-Reviewed Original ResearchConceptsPositron emission tomographyExtrastriatal regionsBrain regionsAmphetamine-induced dopamine releaseHealthy tobacco smokersExtrastriatal brain regionsSynaptic dopamine levelsAmphetamine-induced changesSimplified reference tissue modelReference tissue modelTobacco smokersDopaminergic dysfunctionAmphetamine administrationDopamine levelsDopamine releasePsychiatric disordersChallenge studiesDistribution volumeEmission tomographyD3 bindingReference region modelCerebellumReference regionBaselineSignificant changes
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