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
2012
Sex Differences in Availability of β2*-Nicotinic Acetylcholine Receptors in Recently Abstinent Tobacco Smokers
Cosgrove KP, Esterlis I, McKee SA, Bois F, Seibyl JP, Mazure CM, Krishnan-Sarin S, Staley JK, Picciotto MR, O’Malley S. Sex Differences in Availability of β2*-Nicotinic Acetylcholine Receptors in Recently Abstinent Tobacco Smokers. JAMA Psychiatry 2012, 69: 418-427. PMID: 22474108, PMCID: PMC3508698, DOI: 10.1001/archgenpsychiatry.2011.1465.Peer-Reviewed Original ResearchMeSH KeywordsAdultAzetidinesBehavior, AddictiveBrainDepressionEstradiolFemaleFunctional NeuroimagingHumansIodine RadioisotopesMaleNicotinic AntagonistsProgesteronePyridinesRadioligand AssayReceptors, NicotinicSex CharacteristicsSmokingSubstance Withdrawal SyndromeTomography, Emission-Computed, Single-PhotonConceptsNAChR availabilityFemale smokersTobacco smokersNicotinic acetylcholine receptorsFemale nonsmokersProgesterone levelsAcetylcholine receptorsFemale sex steroid hormonesSex differencesSex steroid hormone levelsAbstinent tobacco smokersSex-matched nonsmokersTobacco smoking effectsMagnetic resonance imaging studyAge-matched malesEquilibrium distribution volumeEffects of nicotineSex steroid hormonesSteroid hormone levelsUnderlying neurochemical mechanismsResonance imaging studySingle photon emissionDays of abstinenceIA SPECTNicotine therapy
2010
Cortico-Thalamic Connectivity is Vulnerable to Nicotine Exposure During Early Postnatal Development through α4/β2/α5 Nicotinic Acetylcholine Receptors
Heath CJ, King SL, Gotti C, Marks MJ, Picciotto MR. Cortico-Thalamic Connectivity is Vulnerable to Nicotine Exposure During Early Postnatal Development through α4/β2/α5 Nicotinic Acetylcholine Receptors. Neuropsychopharmacology 2010, 35: 2324-2338. PMID: 20736992, PMCID: PMC2955839, DOI: 10.1038/npp.2010.130.Peer-Reviewed Original ResearchConceptsDevelopmental nicotine exposureNicotine exposureNicotinic acetylcholine receptorsAcetylcholine receptorsΑ5 nicotinic acetylcholine receptorConstituents of smokeEarly post-natal periodPrimary addictive componentΑ5 nAChR subunitTobacco smoke exposureCortico-thalamic connectivityPost-natal periodEarly postnatal developmentPassive avoidance behaviorCorticothalamic neuronsAddictive componentCorticothalamic projectionsSmoke exposureReceptor subtypesNAChR subtypesDevelopmental exposureMouse modelNeurodevelopmental periodAnimal modelsBehavioral alterations
2007
Prenatal cocaine exposure enhances responsivity of locus coeruleus norepinephrine neurons: Role of autoreceptors
Elsworth JD, Morrow BA, Nguyen V, Mitra J, Picciotto MR, Roth RH. Prenatal cocaine exposure enhances responsivity of locus coeruleus norepinephrine neurons: Role of autoreceptors. Neuroscience 2007, 147: 419-427. PMID: 17543464, PMCID: PMC2855228, DOI: 10.1016/j.neuroscience.2007.04.036.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAutoradiographyAutoreceptorsClonidineCocaineFemaleGenes, fosImmunohistochemistryInjections, IntravenousLocus CoeruleusMaleNeuronsNorepinephrinePrefrontal CortexPregnancyPrenatal Exposure Delayed EffectsRadioligand AssayRatsRats, Sprague-DawleyStress, PsychologicalTyrosine 3-MonooxygenaseConceptsPrenatal cocaine exposureNorepinephrine neuronsCocaine exposurePrenatal cocaineTyrosine hydroxylase-positive neuronsLocus coeruleus norepinephrine neuronsPrenatal cocaine exposure resultsPrenatal saline controlsRole of autoreceptorsLocus coeruleus noradrenergic systemPrenatal treatment groupsCocaine exposure resultsAlpha2-adrenergic receptorsInjection of cocaineGestational day 10Pharmacology of cocaineDaily i.LC neuronsNorepinephrine turnoverPregnant ratsNeurobehavioral deficitsSaline controlsFos expressionNoradrenergic systemRat model