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
2008
Effects of the H3 receptor inverse agonist thioperamide on cocaine-induced locomotion in mice: role of the histaminergic system and potential pharmacokinetic interactions
Brabant C, Alleva L, Grisar T, Quertemont E, Lakaye B, Ohtsu H, Lin JS, Jatlow P, Picciotto MR, Tirelli E. Effects of the H3 receptor inverse agonist thioperamide on cocaine-induced locomotion in mice: role of the histaminergic system and potential pharmacokinetic interactions. Psychopharmacology 2008, 202: 673-687. PMID: 18843481, DOI: 10.1007/s00213-008-1345-y.Peer-Reviewed Original ResearchConceptsEffects of thioperamideCocaine-induced hyperlocomotionCocaine-induced locomotionLocomotor effectsHistaminergic systemKnockout micePotential drug-drug interactionsContribution of histamineNon-histaminergic neuronsPlasma cocaine concentrationsPotential pharmacokinetic interactionsCocaine-induced hyperactivityCocaine plasma concentrationsDrug-drug interactionsReceptor inverse agonistInverse agonist thioperamideSelective H3 agonistH3 receptor inverse agonistConclusionsThe present resultsH3 autoreceptorsPharmacokinetic interactionsIntraperitoneal injectionAgonist AHistamine releasePharmacokinetic effects