2017
Bidirectional Regulation of Aggression in Mice by Hippocampal Alpha-7 Nicotinic Acetylcholine Receptors
Lewis AS, Pittenger ST, Mineur YS, Stout D, Smith PH, Picciotto MR. Bidirectional Regulation of Aggression in Mice by Hippocampal Alpha-7 Nicotinic Acetylcholine Receptors. Neuropsychopharmacology 2017, 43: 1267-1275. PMID: 29114104, PMCID: PMC5916354, DOI: 10.1038/npp.2017.276.Peer-Reviewed Original ResearchConceptsΑ7 nAChRsDentate gyrusNicotinic acetylcholine receptorsGTS-21Resident-intruder interactionsAlpha 7 nicotinic acetylcholine receptorAcetylcholine receptorsΑ7 nicotinic acetylcholine receptorExcitatory-inhibitory balancePromising therapeutic interventionGranule cell activityAggressive behaviorResident-intruder testHippocampal α7Wild-type controlsUnderlying neurobiological substratesGABAergic interneuronsMale micePotential neural circuitsRegulation of aggressionGranule cellsTherapeutic interventionsPartial agonistBrain regionsCell activity
2011
Galanin negatively modulates opiate withdrawal via galanin receptor 1
Holmes FE, Armenaki A, Iismaa TP, Einstein EB, Shine J, Picciotto MR, Wynick D, Zachariou V. Galanin negatively modulates opiate withdrawal via galanin receptor 1. Psychopharmacology 2011, 220: 619-625. PMID: 21969124, PMCID: PMC3324978, DOI: 10.1007/s00213-011-2515-x.Peer-Reviewed Original ResearchConceptsGalanin receptor 1Chronic morphine administrationMorphine administrationLocus coeruleusGalanin expressionOpiate withdrawalReceptor 1Distinct G protein-coupled receptorsPrecipitation of withdrawalAction of morphineDoses of morphineWild-type miceTransgenic mouse lineG protein-coupled receptorsExpress galaninGalanin levelsWild-type controlsProtein-coupled receptorsNeuropeptide galaninMorphine dependenceWithdrawal signsOpiate dependenceGalaninTransgenic miceGalR2 gene
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 reinforcementKnockout of STriatal enriched protein tyrosine phosphatase in mice results in increased ERK1/2 phosphorylation
Venkitaramani DV, Paul S, Zhang Y, Kurup P, Ding L, Tressler L, Allen M, Sacca R, Picciotto MR, Lombroso PJ. Knockout of STriatal enriched protein tyrosine phosphatase in mice results in increased ERK1/2 phosphorylation. Synapse 2008, 63: 69-81. PMID: 18932218, PMCID: PMC2706508, DOI: 10.1002/syn.20608.Peer-Reviewed Original ResearchConceptsSTEP knockout miceStriatal enriched protein tyrosine phosphataseKnockout miceWild-type miceERK1/2 activityHomozygous knockout miceBrain-specific proteinsExtracellular signal-regulated kinase1/2Wild-type controlsCA2 regionKO miceSTEP protein levelsLateral nucleusCytoarchitectural abnormalitiesSynaptic stimulationCultured neuronsSynaptic plasticityMice resultsHeterozygous miceMiceERK1/2 phosphorylationProtein tyrosine phosphataseProtein levels
2000
Brain Localization and Behavioral Impact of the G-Protein-Gated K+ Channel Subunit GIRK4
Wickman K, Karschin C, Karschin A, Picciotto M, Clapham D. Brain Localization and Behavioral Impact of the G-Protein-Gated K+ Channel Subunit GIRK4. Journal Of Neuroscience 2000, 20: 5608-5615. PMID: 10908597, PMCID: PMC6772558, DOI: 10.1523/jneurosci.20-15-05608.2000.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAvoidance LearningBehavior, AnimalBrain ChemistryChick EmbryoFemaleG Protein-Coupled Inwardly-Rectifying Potassium ChannelsGene ExpressionIn Situ HybridizationIon Channel GatingLocomotionMaleMaze LearningMemoryMiceMice, Inbred C57BLMice, KnockoutPotassium ChannelsPotassium Channels, Inwardly RectifyingRNA, MessengerConceptsGIRK4 mRNAG-protein-gated potassium (GIRK) channelsCortical pyramidal neuronsVentromedial hypothalamic nucleusParaventricular thalamic nucleusMorris water mazeG-Protein-GatedPassive avoidance paradigmMammalian nervous systemWild-type controlsEndopiriform nucleusPyramidal neuronsGlobus pallidusSynaptic inhibitionBrainstem nucleiHypothalamic nucleiPain perceptionThalamic nucleiInsular cortexNervous systemNeuronal populationsWater mazeLocomotor activityMouse brainGIRK subunits