1996
Chronic morphine induces visible changes in the morphology of mesolimbic dopamine neurons.
Sklair-Tavron L, Shi W, Lane S, Harris H, Bunney B, Nestler E. Chronic morphine induces visible changes in the morphology of mesolimbic dopamine neurons. Proceedings Of The National Academy Of Sciences Of The United States Of America 1996, 93: 11202-11207. PMID: 8855333, PMCID: PMC38308, DOI: 10.1073/pnas.93.20.11202.Peer-Reviewed Original ResearchConceptsVTA dopamine neuronsVentral tegmental areaChronic morphine treatmentDopamine neuronsMorphine treatmentBrain regionsBrain-derived neurotrophic factorIntra-VTA infusionMorphine-treated ratsOpioid receptor antagonistChronic opiate exposureMesolimbic dopamine neuronsFluorescent dye Lucifer yellowMesolimbic dopamine functionMesolimbic dopamine systemImportant neural substrateDye Lucifer yellowNondopaminergic neuronsVTA neuronsChronic morphineOpiate exposureConcomitant treatmentDopaminergic neuronsNeurotrophic factorReceptor antagonist
1992
Unilateral Transplantation of Human Fetal Mesencephalic Tissue into the Caudate Nucleus of Patients with Parkinson's Disease
Spencer D, Robbins R, Naftolin F, Marek K, Vollmer T, Leranth C, Roth R, Price L, Gjedde A, Bunney B, Sass K, Elsworth J, Kier E, Makuch R, Hoffer P, Redmond D. Unilateral Transplantation of Human Fetal Mesencephalic Tissue into the Caudate Nucleus of Patients with Parkinson's Disease. New England Journal Of Medicine 1992, 327: 1541-1548. PMID: 1435880, DOI: 10.1056/nejm199211263272201.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultAntiparkinson AgentsCaudate NucleusCryopreservationCyclosporineDopamineFemaleFetal Tissue TransplantationHomovanillic AcidHumansMagnetic Resonance ImagingMaleMesencephalonMiddle AgedMotor ActivityParkinson DiseasePutamenStereotaxic TechniquesTomography, Emission-ComputedConceptsCase patientsParkinson's diseaseMesencephalic tissueCaudate nucleusHuman fetal ventral mesencephalic tissueFetal ventral mesencephalic tissueHuman fetal mesencephalic tissueContinued disease progressionFetal dopaminergic neuronsFetal mesencephalic tissueVentral mesencephalic tissueSevere Parkinson's diseaseOptimal drug therapySigns of parkinsonismMidbrain dopamine neuronsPositron emission tomographyMonths of evaluationAntiparkinsonian medicationUnilateral transplantationDrug holidayMore medicationsStriatonigral degenerationNeurologic functionDopaminergic neuronsDrug therapy
1987
Activity of A9 and A10 dopaminergic neurons in unrestrained rats: further characterization and effects of apomorphine and cholecystokinin
Freeman A, Bunney B. Activity of A9 and A10 dopaminergic neurons in unrestrained rats: further characterization and effects of apomorphine and cholecystokinin. Brain Research 1987, 405: 46-55. PMID: 3032350, DOI: 10.1016/0006-8993(87)90988-7.Peer-Reviewed Original ResearchConceptsCCK-8A9 neuronsDA neuronsDopaminergic neuronsUnrestrained ratsVentral tegmental area cellsFiring rateCCK-8 pretreatmentDA cell activitySingle dopaminergic neuronsEffects of apomorphineA10 dopaminergic neuronsActivity of A9Sulfated CCK-8A10 neuronsDA agonistsAnesthetized ratsParalyzed ratsSequential dosesA10 cellsCell activityCell firingUnit firingUnit activityApomorphinePopulation response of midbrain dopaminergic neurons to neuroleptics: further studies on time course and nondopaminergic neuronal influences
Chiodo L, Bunney B. Population response of midbrain dopaminergic neurons to neuroleptics: further studies on time course and nondopaminergic neuronal influences. Journal Of Neuroscience 1987, 7: 629-633. PMID: 2881987, PMCID: PMC6569064, DOI: 10.1523/jneurosci.07-03-00629.1987.Peer-Reviewed Original ResearchConceptsDepolarization-induced inactivationFiring rateDopaminergic neuronsDopamine receptor agonist apomorphineMonths' continuous treatmentAcute oral administrationBasal firing rateActive DA neuronsReceptor agonist apomorphineA10 dopaminergic neuronsActive dopamine neuronsClassical antipsychotic drugsDopamine-containing neuronsPresence of haloperidolHr of administrationLong-term treatmentMidbrain dopaminergic neuronsCholecystokinin receptor antagonistAge-matched controlsHaloperidol resultsA10 regionDA neuronsAcute administrationAgonist apomorphineNeuroleptic haloperidol
1985
Firing properties of substantia nigra dopaminergic neurons in freely moving rats
Freeman A, Meltzer L, Bunney B. Firing properties of substantia nigra dopaminergic neurons in freely moving rats. Life Sciences 1985, 36: 1983-1994. PMID: 3990520, DOI: 10.1016/0024-3205(85)90448-5.Peer-Reviewed Original ResearchConceptsPutative DA neuronsDA neuronsDopaminergic neuronsParalyzed ratsSubstantia nigra dopaminergic neuronsFiring patternsPutative dopaminergic neuronsNigrostriatal DA systemNigra dopaminergic neuronsApomorphine-induced inhibitionSingle spike activityPattern of firingSingle-unit recordingsDegree of burstSubstantia nigraDA cellsElectrophysiological characteristicsUnit recordingsSpike activityFiring propertiesRatsFiring rateNeuronsDA systemCellsDopamine
Grace A, Bunney B. Dopamine. 1985, 285-319. DOI: 10.1007/978-1-4684-4961-7_9.Peer-Reviewed Original ResearchCatecholamine systemsBrain DA systemsFluorescence histochemical techniqueHistochemical fluorescence techniqueBiosynthesis of norepinephrinePrecise anatomical localizationBrain dopamineDopaminergic neuronsStriatal dopamineParkinson's diseaseAnatomical localizationNeuronal populationsAnatomical locationBrain functionDA systemDopamineStudy of dopamineHistochemical techniquesNorepinephrineNeurophysiological analysisDiseaseNeuronsBrainProjection areaBiochemical data
1984
Antipsychotic drug effects on the electrical activity of dopaminergic neurons
Bunney B. Antipsychotic drug effects on the electrical activity of dopaminergic neurons. Trends In Neurosciences 1984, 7: 212-215. DOI: 10.1016/s0166-2236(84)80013-2.Peer-Reviewed Original ResearchClinical effectsAntipsychotic drugsChronic studiesAntipsychotic drug effectsDopamine cell activityCell firing rateMechanism of actionDopaminergic neuronsDrug effectsCell activityElectrophysiological techniquesFiring rateBehavioral effectsDrugsElectrical activityTime-dependent changesNeuronsCellular sitesChemical messengersSpecific actionsActivity
1983
Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—1. Identification and characterization
Grace A, Bunney B. Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—1. Identification and characterization. Neuroscience 1983, 10: 301-315. PMID: 6633863, DOI: 10.1016/0306-4522(83)90135-5.Peer-Reviewed Original ResearchConceptsAction potentialsDopamine neuronsDopamine cellsGlyoxylic acid-induced catecholamine fluorescenceInput resistanceDopamine synthesizing enzymePostsynaptic target areasIntracellular dopamine contentNigral dopamine cellsPossible modulatory effectDopamine-containing cellsIntracellular dopamine concentrationSame inhibitory effectHigh input resistanceInitial segmentAntidromic activationDopaminergic neuronsDopamine contentIntracellular recordingsDopamine synthesisCaudate nucleusElectrophysiological characteristicsTyrosine hydroxylaseCatecholamine fluorescenceModulatory effectsIntracellular and extracellular electrophysiology of nigral dopaminergic neurons—2. Action potential generating mechanisms and morphological correlates
Grace A, Bunney B. Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—2. Action potential generating mechanisms and morphological correlates. Neuroscience 1983, 10: 317-331. PMID: 6633864, DOI: 10.1016/0306-4522(83)90136-7.Peer-Reviewed Original ResearchConceptsInitial segment spikesDopamine neuronsSlow depolarizationAction potentialsAxon hillockDendritic dopamine releaseLong-duration afterhyperpolarizationNigral dopamine neuronsLow-threshold spikesLucifer yellow injectionExtracellular recording techniquesLong-duration spikesAction potential generationDopaminergic neuronsSpecific ionic currentsIntracellular recordingsDopamine releaseIntracellular injectionElectrophysiological studiesDendritic spikesMajor dendritesNeuron 2Action potential generating mechanismSomatic regionNeuronal compartmentsTypical and atypical neuroleptics: differential effects of chronic administration on the activity of A9 and A10 midbrain dopaminergic neurons
Chiodo L, Bunney B. Typical and atypical neuroleptics: differential effects of chronic administration on the activity of A9 and A10 midbrain dopaminergic neurons. Journal Of Neuroscience 1983, 3: 1607-1619. PMID: 6135762, PMCID: PMC6564520, DOI: 10.1523/jneurosci.03-08-01607.1983.Peer-Reviewed Original ResearchConceptsExtrapyramidal side effectsDepolarization inactivationA10 neuronsAntipsychotic drugsDA neuronsDopaminergic neuronsSide effectsExtracellular single-unit recording techniquesExcitatory amino acid glutamateInhibitory neurotransmitter gamma-aminobutyric acidSingle-unit recording techniquesNeurotransmitter gamma-aminobutyric acidActive DA cellsA10 dopaminergic neuronsMidbrain dopaminergic neuronsGamma-aminobutyric acidActivity of A9Amino acid glutamateChronic administrationMicroiontophoretic applicationNeuroleptic treatmentNeuroleptic administrationAtypical neurolepticsTricyclic antidepressantsDA cells
1982
A modification of the rapid glyoxylic acid technique permits visualization of serotonergic and hypothalamic dopaminergic neurons
Rassmussen S, Bunney B. A modification of the rapid glyoxylic acid technique permits visualization of serotonergic and hypothalamic dopaminergic neurons. Journal Of Neuroscience Methods 1982, 6: 139-144. PMID: 6750255, DOI: 10.1016/0165-0270(82)90024-3.Peer-Reviewed Original ResearchConceptsGlyoxylic acid techniqueHypothalamic dopaminergic neuronsTryptophan hydroxylase inhibitorHypothalamic cell groupsTryptophan pretreatmentCatecholaminergic neuronsDopaminergic neuronsHypothalamic neuronsPara-chlorophenylalanineDendritic fieldsSerotonergic systemCatecholamine systemsColchicine administrationHydroxylase inhibitorColchicine pretreatmentCell groupsNeuronsAcid techniqueMethod of choiceReliable visualizationPretreatmentDopaminergicHistofluorescenceImmunocytohistochemistryAdministration
1981
Peptide-monoamine coexistence: Studies of the actions of cholecystokinin-like peptide on the electrical activity of midbrain dopamine neurons
Skirboll L, Grace A, Hommer D, Rehfeld J, Goldstein M, Hökfelt T, Bunney B. Peptide-monoamine coexistence: Studies of the actions of cholecystokinin-like peptide on the electrical activity of midbrain dopamine neurons. Neuroscience 1981, 6: 2111-2124. PMID: 6120481, DOI: 10.1016/0306-4522(81)90002-6.Peer-Reviewed Original ResearchConceptsCholecystokinin-like peptidesVentral tegmental areaDopaminergic neuronsFiring rateSubstantia nigraTegmental areaDopaminergic cellsExtracellular single-unit recording techniquesMidbrain dopamine-containing neuronsSingle-unit recording techniquesDopamine-containing neuronsBrain dopaminergic systemDopamine-rich areasMidbrain dopamine neuronsDepolarization inactivationResponsive neuronsDopamine neuronsDopaminergic systemComparable dosesTyrosine hydroxylaseCholecystokininBursting activityNeuronsImmunocytochemical techniquesRecording techniques
1980
Nigral Dopamine Neurons: Intracellular Recording and Identification with L-Dopa Injection and Histofluorescence
Grace A, Bunney B. Nigral Dopamine Neurons: Intracellular Recording and Identification with L-Dopa Injection and Histofluorescence. Science 1980, 210: 654-656. PMID: 7433992, DOI: 10.1126/science.7433992.Peer-Reviewed Original ResearchConceptsL-DOPA injectionIntracellular recordingsAntidromic conduction velocitiesPutative dopaminergic neuronsDopamine-containing neuronsRat substantia nigraAntidromic activationDopaminergic neuronsSubstantia nigraSlow depolarizationBurst firingFluorescence histochemistryConduction velocityFast potentialsNeuronsExtracellular spikesInjectionHistofluorescenceRecordingsNigraEffect of sensory stimuli on the activity of dopaminergic neurons: Involvement of non-dopaminergic nigral neurons and striato-nigral pathways
Hommer D, Bunney B. Effect of sensory stimuli on the activity of dopaminergic neurons: Involvement of non-dopaminergic nigral neurons and striato-nigral pathways. Life Sciences 1980, 27: 377-386. PMID: 7412480, DOI: 10.1016/0024-3205(80)90185-x.Peer-Reviewed Original ResearchConceptsStriato-nigral pathwayDopaminergic neuronsReticulata neuronsInhibitory periodSingle-unit recording techniquesNon-dopaminergic neuronsNigro-striatal pathwaySciatic nerve stimulationRat substantia nigraDopaminergic neuron activitySensory stimuliInitial inhibitionStimulation-induced changesActivity of dopaminergicNigral neuronsNerve stimulationSubstantia nigraNeuron activityNeuronsRecording techniquesHaloperidolLesionsInhibitionStimulationPathwayEffects of baclofen on nigral dopaminergic cell activity following acute and chronic haloperidol treatment
Grace A, Bunney B. Effects of baclofen on nigral dopaminergic cell activity following acute and chronic haloperidol treatment. Brain Research Bulletin 1980, 5: 537-543. DOI: 10.1016/0361-9230(80)90087-8.Peer-Reviewed Original ResearchChronic haloperidol treatmentDopaminergic cell activityEffects of baclofenHaloperidol treatmentLow dosesExtracellular single-unit recording techniquesNeuroleptic-induced side effectsRat nigral dopaminergic neuronsCell activitySingle-unit recording techniquesInhibitory effectNigral DA cellsSingle low dosesNigral dopaminergic neuronsTreatment of spasticityAction of baclofenDose-response curveMechanism of actionDepolarization inactivationDopaminergic neuronsHaloperidol pretreatmentDA cellsPossible efficacyNigral inputsBaclofen
1979
Paradoxical GABA excitation of nigral dopaminergic cells: Indirect mediation through reticulata inhibitory neurons
Grace A, Bunney B. Paradoxical GABA excitation of nigral dopaminergic cells: Indirect mediation through reticulata inhibitory neurons. European Journal Of Pharmacology 1979, 59: 211-218. PMID: 527646, DOI: 10.1016/0014-2999(79)90283-8.Peer-Reviewed Original ResearchConceptsZona reticulataGABA agonistsGABAergic inputsZona compactaSubstantia nigraLow dosesCell activitySingle-unit recording techniquesNigral dopaminergic cellsInhibitory GABAergic inputMeans of microiontophoresisPopulations of neuronsCell firing rateGABA excitationExcitatory effectsDopaminergic neuronsDopaminergic cellsInhibitory neuronsSame doseElectrophysiological studiesNeuron activityZR cellsFiring rateNeuronsAgonistsEFFECTS OF CHRONIC HALOPERIDOL TREATMENT ON NIGRAL DOPAMINERGIC CELL ACTIVITY
Bunney B, Grace A. EFFECTS OF CHRONIC HALOPERIDOL TREATMENT ON NIGRAL DOPAMINERGIC CELL ACTIVITY. 1979, 666-668. DOI: 10.1016/b978-1-4832-8363-0.50202-0.Peer-Reviewed Original ResearchActive DA cellsChronic haloperidol treatmentDA cellsExtracellular single-unit recording techniquesRat nigral dopaminergic neuronsSingle-unit recording techniquesNigral dopaminergic neuronsNeurological side effectsEffects of chronicDepolarization inactivationHaloperidol treatmentDopaminergic neuronsExcitatory inputsSide effectsCell activityRecording techniquesPossible new mechanismSubsequent studiesTreatmentCellsAnimalsNigralChronicNeurons
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
Inhibition of both noradrenergic and serotonergic neurons in brain by the α-adrenergic agonist clonidine
Svensson T, Bunney B, Aghajanian G. Inhibition of both noradrenergic and serotonergic neurons in brain by the α-adrenergic agonist clonidine. Brain Research 1975, 92: 291-306. PMID: 1174954, DOI: 10.1016/0006-8993(75)90276-0.Peer-Reviewed Original ResearchConceptsNE neuronsAgonist clonidineHigh dosesMidbrain dorsal raphe nucleusAlpha-adrenergic agonist clonidineSingle-unit recording techniquesBrain NE neuronsClonidine-induced depressionDorsal raphe nucleusAdrenergic agonist clonidineBrain norepinephrineRaphe neuronsIntravenous clonidineAdrenergic transmissionSerotonergic neuronsDepressant effectDopaminergic neuronsRaphe nucleusSpontaneous firingLocus coeruleusClonidineLow doseL-amphetamineAdrenergic receptorsNeuronsD & 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 techniques