2022
Muscarinic antagonists impair multiple aspects of operant discrimination learning and performance
Yousuf H, Girardi E, Crouse R, Picciotto M. Muscarinic antagonists impair multiple aspects of operant discrimination learning and performance. Neuroscience Letters 2022, 794: 137025. PMID: 36529388, PMCID: PMC9812939, DOI: 10.1016/j.neulet.2022.137025.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsConditioning, OperantDiscrimination LearningLearningMemoryMiceMuscarinic AntagonistsReceptors, MuscarinicRewardScopolamineConceptsOperant discriminationOperant discrimination learningCue-reward associationsLong-term memoryMultiple training sessionsPost-session injectionsCue associationsReward-related respondingMemory processesDiscrimination learningMaladaptive formsImpaired consolidationFood rewardSuccessful learningNose pokesDifferent learningPre-session injectionsTraining sessionsRewardTaskMemoryLearningMultiple aspectsEnvironmental cuesMuscarinic acetylcholine receptor family
2020
Hippocampal knockdown of α2 nicotinic or M1 muscarinic acetylcholine receptors in C57BL/6J male mice impairs cued fear conditioning
Mineur YS, Ernstsen C, Islam A, Maibom KL, Picciotto MR. Hippocampal knockdown of α2 nicotinic or M1 muscarinic acetylcholine receptors in C57BL/6J male mice impairs cued fear conditioning. Genes Brain & Behavior 2020, 19: e12677. PMID: 32447811, PMCID: PMC8018799, DOI: 10.1111/gbb.12677.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsConditioning, OperantCuesFearGene DeletionHEK293 CellsHippocampusHumansMaleMiceMice, Inbred C57BLReceptor, Muscarinic M1Receptors, NicotinicConceptsFear learningShort-term learningNumber of paradigmsCued fearLight/dark boxFear conditioningContextual memoryStress-related behaviorsStress-induced reactivityTerm learningBrain circuitsRobust effectM1 mAChRHippocampal acetylcholineM1 muscarinic ACh receptorsNovelty-suppressed feeding testLearningMemoryDark boxHippocampus of malesM1 muscarinic acetylcholine receptorHippocampal knockdownFearMuscarinic ACh receptorsGroups of mice
2012
Nicotine-taking and nicotine-seeking in C57Bl/6J mice without prior operant training or food restriction
Yan Y, Pushparaj A, Gamaleddin I, Steiner RC, Picciotto MR, Roder J, Le Foll B. Nicotine-taking and nicotine-seeking in C57Bl/6J mice without prior operant training or food restriction. Behavioural Brain Research 2012, 230: 34-39. PMID: 22326373, PMCID: PMC3310267, DOI: 10.1016/j.bbr.2012.01.042.Peer-Reviewed Original ResearchConceptsNose-poke behaviorPrior operant trainingFood restrictionDose-response curveNicotine-seeking behaviorC57BL/6J miceIntermittent footshockFlat dose-response curveNaive C57BL/6J miceInjections of nicotineOperant trainingNicotine self-administration paradigmSelf-administration paradigmCue presentationSelf-administered salineNicotine groupNicotine reinforcementLight cue presentationPriming injectionsFR2 scheduleSecond consecutive dayConsecutive daysMiceDaily sessionsNicotine
2008
Effects of galanin on cocaine-mediated conditioned place preference and ERK signaling in mice
Narasimhaiah R, Kamens HM, Picciotto MR. Effects of galanin on cocaine-mediated conditioned place preference and ERK signaling in mice. Psychopharmacology 2008, 204: 95-102. PMID: 19099295, PMCID: PMC2872184, DOI: 10.1007/s00213-008-1438-7.Peer-Reviewed Original ResearchConceptsVentral tegmental areaEffects of galaninNucleus accumbensNeuropeptide galaninPlace preferenceThreshold doseEffects of morphineMesolimbic dopamine systemMesolimbic dopaminergic pathwaySystemic cocaine injectionPlace preference paradigmCocaine-induced activationDrugs of abuseAmphetamine reinforcementWild-type controlsExtracellular signal-regulated kinase (ERK) activityTegmental areaCocaine injectionCocaine responseDopaminergic pathwaysConclusionsThese dataGalaninRewarding effectsDopamine systemDrug reinforcementMolecular Mechanisms Underlying the Motivational Effects of Nicotine
Brunzell DH, Picciotto MR. Molecular Mechanisms Underlying the Motivational Effects of Nicotine. Nebraska Symposium On Motivation 2008, 55: 17-30. PMID: 19013937, PMCID: PMC3594851, DOI: 10.1007/978-0-387-78748-0_3.Peer-Reviewed Original Research
2007
Galanin Protects Against Behavioral and Neurochemical Correlates of Opiate Reward
Hawes JJ, Brunzell DH, Narasimhaiah R, Langel Ű, Wynick D, Picciotto MR. Galanin Protects Against Behavioral and Neurochemical Correlates of Opiate Reward. Neuropsychopharmacology 2007, 33: 1864-1873. PMID: 17957220, PMCID: PMC2504505, DOI: 10.1038/sj.npp.1301579.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalBlotting, WesternBrain ChemistryConditioning, OperantCyclic AMP Response Element-Binding ProteinDose-Response Relationship, DrugExtracellular Signal-Regulated MAP KinasesGalaninGenotypeMiceMice, KnockoutMorphineMorphine DependenceMotor ActivityNarcoticsRewardSignal TransductionConceptsGKO miceMorphine place preferenceOpiate rewardGalanin agonistsMorphine administrationPlace preferenceGalanin knockout miceSingle systemic injectionEndogenous negative regulatorDrugs of abuseAcute administrationNeurochemical effectsNeuropeptide galaninPeripheral injectionWithdrawal signsLocomotor activationSystemic injectionNeurochemical correlatesNucleus accumbensGalaninKnockout miceTherapeutic targetBrain areasDrug reinforcementGalnon
2005
β2-Subunit-containing nicotinic acetylcholine receptors are involved in nicotine-induced increases in conditioned reinforcement but not progressive ratio responding for food in C57BL/6 mice
Brunzell DH, Chang JR, Schneider B, Olausson P, Taylor JR, Picciotto MR. β2-Subunit-containing nicotinic acetylcholine receptors are involved in nicotine-induced increases in conditioned reinforcement but not progressive ratio responding for food in C57BL/6 mice. Psychopharmacology 2005, 184: 328-338. PMID: 16133126, DOI: 10.1007/s00213-005-0099-z.Peer-Reviewed Original ResearchConceptsNicotine exposureNicotinic acetylcholine receptorsFood-reinforced respondingAcetylcholine receptorsPrior nicotine exposureNicotine-induced increasesProgressive ratioNicotinic receptor subtypesEffects of nicotineWild-type miceProgressive ratio testC57BL/6 miceReceptor subtypesConclusionThese dataChronic exposureReinforcement testingMiceΒ2 subunitUnpaired presentationsExposureReceptorsApproach trainingPresentationPaired presentationsPrimary reinforcement
2000
Fear conditioning and latent inhibition in mice lacking the high affinity subclass of nicotinic acetylcholine receptors in the brain
Caldarone B, Duman C, Picciotto M. Fear conditioning and latent inhibition in mice lacking the high affinity subclass of nicotinic acetylcholine receptors in the brain. Neuropharmacology 2000, 39: 2779-2784. PMID: 11044747, DOI: 10.1016/s0028-3908(00)00137-4.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsConditioning, OperantFearFemaleMaleMiceMice, KnockoutNicotineNicotinic AgonistsReceptors, NicotinicReflex, StartleSex CharacteristicsConceptsLatent inhibitionFear conditioningLatent inhibition taskTests of cognitionSpecific nicotinic receptor subtypesSpatial learning deficitsCognitive tasksInhibition taskHigh affinity subclassCognitive effectsBehavioral freezingLearning deficitsConditioningFearNicotinic receptor subtypesTaskOverall levelCognitionToneNicotineDeficitsSimilar levelsNicotinic receptorsNicotinic acetylcholine receptorsPrevious studies
1999
Assessment of nicotinic acetylcholine receptor subunit contributions to nicotine self-administration in mutant mice
Epping-Jordan M, Picciotto M, Changeux J, Pich EM. Assessment of nicotinic acetylcholine receptor subunit contributions to nicotine self-administration in mutant mice. Psychopharmacology 1999, 147: 25-26. PMID: 10591862, DOI: 10.1007/s002130051135.Peer-Reviewed Original Research
1998
Acetylcholine receptors containing the β2 subunit are involved in the reinforcing properties of nicotine
Picciotto M, Zoli M, Rimondini R, Léna C, Marubio L, Pich E, Fuxe K, Changeux J. Acetylcholine receptors containing the β2 subunit are involved in the reinforcing properties of nicotine. Nature 1998, 391: 173-177. PMID: 9428762, DOI: 10.1038/34413.Peer-Reviewed Original ResearchMeSH Keywords3,4-Dihydroxyphenylacetic AcidAcetylcholineAnimalsBinding SitesCarrier ProteinsCocaineConditioning, OperantDopamineDopamine Plasma Membrane Transport ProteinsHomovanillic AcidIn Vitro TechniquesMaleMembrane GlycoproteinsMembrane Transport ProteinsMiceMice, Inbred C57BLMice, Inbred DBAMice, KnockoutMicrodialysisMotor ActivityNerve Tissue ProteinsNicotineNucleus AccumbensPatch-Clamp TechniquesReceptors, NicotinicSecond Messenger SystemsSubstantia NigraVentral Tegmental AreaConceptsProperties of nicotineAcetylcholine receptorsVentral striatumΒ2 subunitNeuronal nicotinic acetylcholine receptorsMesencephalic dopaminergic neuronsEffects of nicotineWild-type micePatch-clamp recordingsMesolimbic dopamine systemNicotinic acetylcholine receptorsDrugs of abuseDopaminergic neuronsMesolimbic systemDopamine releaseDopamine systemMutant miceMiceNicotineNeurotransmitter dopamineStriatumReceptorsNeuronsReleaseBrain