2021
Control of exploration, motor coordination and amphetamine sensitization by cannabinoid CB1 receptors expressed in medium spiny neurons
Bonm AV, Elezgarai I, Gremel CM, Viray K, Bamford NS, Palmiter RD, Grandes P, Lovinger DM, Stella N. Control of exploration, motor coordination and amphetamine sensitization by cannabinoid CB1 receptors expressed in medium spiny neurons. European Journal Of Neuroscience 2021, 54: 4934-4952. PMID: 34216157, PMCID: PMC9377695, DOI: 10.1111/ejn.15381.Peer-Reviewed Original ResearchConceptsMedium spiny neuronsR KO miceAmphetamine sensitizationKO miceMotor coordinationSpiny neuronsImpaired motor coordinationInvolvement of CBCannabinoid 1 receptorCannabinoid CB1 receptorsCB1 receptorsNeuronal subpopulationsCannabimimetic responsesInhibitory neuronsSpontaneous locomotionR activationR expressionMiceMouse linesKnockout backgroundNeuronsSpecific CBNew functional roleSensitizationDifferent behavioral responses
2019
Localising movement disorders in childhood
Bamford NS, McVicar K. Localising movement disorders in childhood. The Lancet Child & Adolescent Health 2019, 3: 917-928. PMID: 31653548, PMCID: PMC7102738, DOI: 10.1016/s2352-4642(19)30330-x.Peer-Reviewed Original ResearchConceptsMovement disordersBasal gangliaBasal ganglia functionMajor movement disordersGanglia functionNew pharmacologicalTreatment decisionsClinical definitionSynaptic functionElectrophysiological approachesDisordersMotor learningGangliaChildrenIon channelsThalamusCortexPharmacologicalDiseasePhysiological frameworkDiagnosisNeuronsReceptors
2012
Lack of GPR88 enhances medium spiny neuron activity and alters motor- and cue-dependent behaviors
Quintana A, Sanz E, Wang W, Storey GP, Güler AD, Wanat MJ, Roller BA, La Torre A, Amieux PS, McKnight GS, Bamford NS, Palmiter RD. Lack of GPR88 enhances medium spiny neuron activity and alters motor- and cue-dependent behaviors. Nature Neuroscience 2012, 15: 1547-1555. PMID: 23064379, PMCID: PMC3483418, DOI: 10.1038/nn.3239.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAnimalsAvoidance LearningBenzylaminesBiophysicsCells, CulturedChromonesCorpus StriatumCuesElectric StimulationEmbryo, MammalianExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsFemaleGABA AntagonistsGamma-Aminobutyric AcidGene Expression ProfilingGreen Fluorescent ProteinsIn Vitro TechniquesMaleMaze LearningMiceMice, Inbred C57BLMice, TransgenicMotor ActivityMutationNeuronsOligonucleotide Array Sequence AnalysisPhosphinic AcidsReceptors, AMPAReceptors, GABA-BReceptors, G-Protein-CoupledRotarod Performance TestConceptsMedium spiny neuronsMedium spiny neuron activityStriatal medium spiny neuronsOrphan G protein-coupled receptorPoor motor coordinationG protein-coupled receptorsProtein-coupled receptorsSpiny neuronsMotor coordinationGPR88Neuron activityFiring rateReduced inhibitionHyperactivityMiceNeuronsReceptors
2011
Attenuating GABAA Receptor Signaling in Dopamine Neurons Selectively Enhances Reward Learning and Alters Risk Preference in Mice
Parker JG, Wanat MJ, Soden ME, Ahmad K, Zweifel LS, Bamford NS, Palmiter RD. Attenuating GABAA Receptor Signaling in Dopamine Neurons Selectively Enhances Reward Learning and Alters Risk Preference in Mice. Journal Of Neuroscience 2011, 31: 17103-17112. PMID: 22114279, PMCID: PMC3235504, DOI: 10.1523/jneurosci.1715-11.2011.Peer-Reviewed Original ResearchConceptsDA neuronsDA neuron activityGABAA Receptor SignalingPhasic dopamine transmissionPhasic DA responsesAversive learningAppetitive learningGABAergic toneExcitatory afferentsMidbrain slicesDA releaseDopamine neuronsExcitatory driveDopamine transmissionNucleus accumbensDA responseElectrical stimulationNeuron activityDA signalingPsychiatric conditionsCompensatory upregulationMiceNeuronsReceptor signalingAppetitive taskBalanced NMDA receptor activity in dopamine D1 receptor (D1R)- and D2R-expressing medium spiny neurons is required for amphetamine sensitization
Beutler LR, Wanat MJ, Quintana A, Sanz E, Bamford NS, Zweifel LS, Palmiter RD. Balanced NMDA receptor activity in dopamine D1 receptor (D1R)- and D2R-expressing medium spiny neurons is required for amphetamine sensitization. Proceedings Of The National Academy Of Sciences Of The United States Of America 2011, 108: 4206-4211. PMID: 21368124, PMCID: PMC3054029, DOI: 10.1073/pnas.1101424108.Peer-Reviewed Original ResearchConceptsDopamine D1 receptorsAMPH sensitizationNucleus accumbensBehavioral sensitizationDopamine neuronsD1 receptorsD1R neuronsVirus-mediated restorationMedium spiny neuronsNMDA receptor activityType glutamate receptorsEssential NR1 subunitNMDAR signalingSpiny neuronsAmphetamine sensitizationNeuron targetsD1R-MSNsGlutamate receptorsNMDARNR1 subunitReceptor activityBrain regionsNeuronsSensitizationAmphetamine