2012
Overinhibition of corticostriatal activity following prenatal cocaine exposure
Wang W, Nitulescu I, Lewis JS, Lemos JC, Bamford IJ, Posielski NM, Storey GP, Phillips PE, Bamford NS. Overinhibition of corticostriatal activity following prenatal cocaine exposure. Annals Of Neurology 2012, 73: 355-369. PMID: 23225132, PMCID: PMC3766752, DOI: 10.1002/ana.23805.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnalysis of VarianceAnesthetics, LocalAnimalsBiophysicsCerebral CortexCocaineCorpus StriatumDopamineDopamine AgentsDopamine Uptake InhibitorsDrug InteractionsElectric StimulationEmbryo, MammalianExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsExploratory BehaviorFemaleGABA AgentsGreen Fluorescent ProteinsHindlimb SuspensionIn Vitro TechniquesInterneuronsLidocaineMaleMiceMice, Inbred C57BLMice, TransgenicNerve Tissue ProteinsNeural InhibitionNeuronal PlasticityPatch-Clamp TechniquesPregnancyPrenatal Exposure Delayed EffectsQuinoxalinesQuinpiroleReceptors, GABA-ARotarod Performance TestSodium Channel BlockersStatistics, NonparametricTetrodotoxinConceptsPrenatal cocaine exposureCocaine exposureCorticostriatal activityTonic GABA currentsGABAA receptor antagonistBasal ganglia functionDopamine-dependent behaviorsCorticostriatal terminalsGABA interneuronsCorticostriatal synapsesDopamine-dependent plasticityGABAergic mechanismsGlutamate releaseGABAB receptorsMotor abnormalitiesGanglia functionTonic inhibitionReceptor antagonistStriatal synapsesAdolescent miceGABAergic signalingGABA currentsClinical studiesD2 receptorsPolysubstance abuse
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 task