2007
Clozapine Blocks D-Amphetamine-Induced Excitation of Dopamine Neurons in the Ventral Tegmental Area
Shi W, Zhang X, Pun C, Bunney B. Clozapine Blocks D-Amphetamine-Induced Excitation of Dopamine Neurons in the Ventral Tegmental Area. Neuropsychopharmacology 2007, 32: 1922-1928. PMID: 17299514, DOI: 10.1038/sj.npp.1301334.Peer-Reviewed Original ResearchConceptsD2-like receptorsDA neuronsVentral tegmental areaD-amphetamineDA receptorsExcitatory effectsTegmental areaΑ1 receptor antagonist prazosinAtypical antipsychotic drug clozapineChloral hydrate-anesthetized ratsTypical antipsychotic drug haloperidolCentral dopamine transmissionCurrent antipsychotic drugsReceptor antagonist prazosinAntipsychotic drug haloperidolAntipsychotic drug clozapineAntagonist prazosinExcitatory pathwaysDA transmissionDopamine neuronsΑ1 receptorsSystemic administrationAntipsychotic drugsExcitatory inputsIncomplete blockade
2000
Dual Effects of d-Amphetamine on Dopamine Neurons Mediated by Dopamine and Nondopamine Receptors
Shi W, Pun C, Zhang X, Jones M, Bunney B. Dual Effects of d-Amphetamine on Dopamine Neurons Mediated by Dopamine and Nondopamine Receptors. Journal Of Neuroscience 2000, 20: 3504-3511. PMID: 10777813, PMCID: PMC6773133, DOI: 10.1523/jneurosci.20-09-03504.2000.Peer-Reviewed Original ResearchConceptsD2-like receptorsD-amphetamineDA cellsSelective D2 antagonist racloprideVivo single-unit recordingsFiring rateAlpha1-antagonist prazosinAlpha2 antagonist idazoxanAlpha-antagonist phenoxybenzamineD2 antagonist racloprideDA cell firingSingle-unit recordingsRelated psychostimulantsAntagonist idazoxanAntagonist phenoxybenzamineDA receptorsAntagonist prazosinAntagonist racloprideExcitatory effectsAlpha1 receptorsDopamine neuronsDopamine releaseCell firingInhibitory effectReceptors
1999
Endogenous DA‐mediated feedback inhibition of DA neurons: Involvement of both D1‐ and D2‐like receptors
Shi W, Pun C, Smith P, Bunney B. Endogenous DA‐mediated feedback inhibition of DA neurons: Involvement of both D1‐ and D2‐like receptors. Synapse 1999, 35: 111-119. PMID: 10611636, DOI: 10.1002/(sici)1098-2396(200002)35:2<111::aid-syn3>3.0.co;2-7.Peer-Reviewed Original ResearchConceptsDA neuronsLike receptorsDA cellsEndogenous DAChloral hydrate-anesthetized ratsNigral DA cellsD2-like receptorsSingle-unit recordingsCerveau isolé preparationFeedback inhibitionParkinsonian animalsAntagonist racloprideAntagonist SCH23390DA releaseEndogenous dopamineD-amphetamineParkinson's diseaseUnit recordingsSCH23390Receptor activationBaseline activityReceptorsChloral hydrateNeuronsConcurrent activation
1978
d-Amphetamine-induced depression of central dopamine neurons: Evidence for mediation by both autoreceptors and a striato-nigral feedback pathway
Bunney B, Aghajanian G. d-Amphetamine-induced depression of central dopamine neurons: Evidence for mediation by both autoreceptors and a striato-nigral feedback pathway. Naunyn-Schmiedeberg's Archives Of Pharmacology 1978, 304: 255-261. PMID: 714182, DOI: 10.1007/bf00507966.Peer-Reviewed Original ResearchConceptsDA cellsSubstantia nigraFeedback pathwaysCentral dopamine neuronsIntravenous d-amphetamineNon-convulsant dosesPicrotoxin-treated animalsKainic acid injectionRelease of GABAActivity of dopamineNon-lesioned animalsSingle-cell recordingsDA autoreceptorsDendrodendritic synapsesMicroiontophoretic techniquesAfferent terminalsDepressant effectUnlesioned animalsDopamine neuronsGABA antagonistsAnesthetized ratsD-amphetamineCaudate nucleusAcid injectionHigh doses
1976
d-Amphetamine-Induced Inhibition of Central Dopaminergic Neurons: Mediation by a Striato-Nigral Feedback Pathway
Bunney B, Achajanian G. d-Amphetamine-Induced Inhibition of Central Dopaminergic Neurons: Mediation by a Striato-Nigral Feedback Pathway. Science 1976, 192: 391-393. PMID: 1257777, DOI: 10.1126/science.1257777.Peer-Reviewed Original ResearchConceptsD-amphetamineDepressant effectDopaminergic cell activityIntravenous d-amphetamineCentral dopaminergic neuronsStriato-nigral pathwayNeuronal feedback loopMicroiontophoretic applicationDopaminergic neuronsDopaminergic cellsCell activitySignificant slowingFeedback pathwaysPrevious dataCellsLesionsPathwayNeurons
1975
D & L amphetamine stereoisomers: comparative potencies in affecting the firing of central dopaminergic and noradrenergic neurons.
Bunney B, Walters J, Kuhar M, Roth R, Aghajanian G. D & L amphetamine stereoisomers: comparative potencies in affecting the firing of central dopaminergic and noradrenergic neurons. Psychopharmacology Communications 1975, 1: 177-90. PMID: 1223998.Peer-Reviewed Original ResearchConceptsNoradrenergic neuronsDopaminergic neuronsD-amphetamineSingle-unit recording techniquesSubstantia nigra zona compactaSubstantia nigra dopamineLocus coeruleus cellsIsomers of amphetamineCentral dopaminergicZona compactaDA cellsDopamine neuronsLocus coeruleusParalyzed ratsCatecholamine systemsLow dosesInterpretation of studiesPharmacological toolsFiring ratePreferential effectComparative potencyNeuronsAmphetamineLethal dosesRecording techniquesEffects of molindone on central dopaminergic neuronal activity and metabolism: similarity to other neuroleptics.
Bunney B, Roth R, Aghajanian G. Effects of molindone on central dopaminergic neuronal activity and metabolism: similarity to other neuroleptics. Psychopharmacology Communications 1975, 1: 349-58. PMID: 1224004.Peer-Reviewed Original ResearchConceptsEffects of molindoneCentral dopaminergic neuronal activityExtracellular single-unit recordingsLow intravenous dosesDopaminergic neuronal activityDA neuron activityMost antipsychotic drugsBaseline firing rateSingle-unit recordingsDA metabolismDA neuronsIntravenous dosesClassical neurolepticsDopaminergic neuronsOlfactory tubercleDA cellsAntipsychotic drugsD-amphetamineInduced depressionRat midbrainDopamine synthesisNeuronal activityUnit recordingsNeuron activityMolindone
1973
Comparison of Effects of L-Dopa, Amphetamine and Apomorphine on Firing Rate of Rat Dopaminergic Neurones
BUNNEY B, AGHAJANIAN G, ROTH R. Comparison of Effects of L-Dopa, Amphetamine and Apomorphine on Firing Rate of Rat Dopaminergic Neurones. Nature 1973, 245: 123-125. PMID: 4518113, DOI: 10.1038/newbio245123a0.Peer-Reviewed Original ResearchConceptsDopamine receptorsAdjacent ventral tegmental areaL-DOPASubstantia nigra zona compactaFiring rateVentral tegmental areaAvailability of dopamineAromatic amino acid decarboxylaseDopamine-containing cellsAmount of dopamineComparison of effectsZona compactaTegmental areaD-amphetamineDopaminergic neuronesAmino acid decarboxylaseReceptor stimulationAcid decarboxylaseDopamineReceptorsApomorphineDrugsStimulationFeedback inhibitionCompacta