2021
Expression of PON2 isoforms varies among brain regions in male and female African green monkeys
Jamwal S, Blackburn JK, Elsworth JD. Expression of PON2 isoforms varies among brain regions in male and female African green monkeys. Free Radical Biology And Medicine 2021, 178: 215-218. PMID: 34890766, PMCID: PMC8760629, DOI: 10.1016/j.freeradbiomed.2021.12.005.Peer-Reviewed Original ResearchConceptsAfrican green monkeysParkinson's diseaseBrain regionsParaoxonase 2Different brain regionsFemale monkeysGreen monkeysPON2 expressionOxidative stress-related neurodegenerative disordersFemale African green monkeysNeurodegenerative disordersMale African green monkeysOxidative stressPON2 protein expressionAnti-inflammatory propertiesExpression levelsSignificant differencesBrain tissue samplesDorsolateral prefrontal cortexNeuroprotective strategiesWestern blotting techniquesDopaminergic neuronsPON2 proteinPrimate brainProtective roleSex-based disparity in paraoxonase-2 expression in the brains of African green monkeys
Jamwal S, Blackburn JK, Elsworth JD. Sex-based disparity in paraoxonase-2 expression in the brains of African green monkeys. Free Radical Biology And Medicine 2021, 167: 201-204. PMID: 33722626, PMCID: PMC8096713, DOI: 10.1016/j.freeradbiomed.2021.03.003.Peer-Reviewed Original ResearchConceptsAfrican green monkeysParaoxonase 2Parkinson's diseaseBrain regionsGreen monkeysOxidative stressReactive oxygen speciesAnti-inflammatory propertiesSex-based disparitiesParaoxonase-2 expressionDifferent brain regionsNigrostriatal systemPON2 expressionDevelopment of therapeuticsNeurodegenerative disordersDiseaseProtein levelsROS levelsLower ROS levelsMitochondrial performanceSex-based variationDisordersMonkeysOxygen speciesMales
2001
Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine
Zachariou V, Caldarone B, Weathers-Lowin A, George T, Elsworth J, Roth R, Changeux J, Picciotto M. Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine. Neuropsychopharmacology 2001, 24: 576-589. PMID: 11282258, DOI: 10.1016/s0893-133x(00)00224-4.Peer-Reviewed Original ResearchConceptsPlace preferenceDA turnoverLow doseHigh-affinity nicotinic acetylcholine receptorsMesolimbic DA systemHigh-affinity nAChRsNicotinic antagonist mecamylamineWild-type miceMesolimbic dopamine systemFos-related antigensProperties of nicotineCocaine place preferenceΒ2 subunitNicotinic acetylcholine receptorsAntagonist mecamylamineDA releaseMetabolite DOPACNeurochemical changesSubthreshold doseType miceDopamine systemPsychomotor stimulantsAcetylcholine receptorsHigh dosesBrain regions
1999
Spontaneous Blink Rates Correlate with Dopamine Levels in the Caudate Nucleus of MPTP-Treated Monkeys
Taylor J, Elsworth J, Lawrence M, Sladek J, Roth R, Redmond D. Spontaneous Blink Rates Correlate with Dopamine Levels in the Caudate Nucleus of MPTP-Treated Monkeys. Experimental Neurology 1999, 158: 214-220. PMID: 10448434, DOI: 10.1006/exnr.1999.7093.Peer-Reviewed Original ResearchConceptsCaudate nucleusConcentration of DAEye blink rateBlink rateDA ratioDopaminergic regulationD1 agonist dihydrexidineDA D2 receptorsDopaminergic neurotoxin MPTPSeverity of parkinsonismSpontaneous eye blink rateSpecific brain regionsAntiparkinsonian effectsDA depletionD2 agonistDopamine D1Dopamine levelsNeurotoxin MPTPD2 receptorsMPTPNormal animalsRostral portionSubcortical regionsBrain regionsVentromedial regionAltered frontal cortical dopaminergic transmission in monkeys after subchronic phencyclidine exposure: involvement in frontostriatal cognitive deficits
Jentsch J, Taylor J, Elsworth J, Redmond D, Roth R. Altered frontal cortical dopaminergic transmission in monkeys after subchronic phencyclidine exposure: involvement in frontostriatal cognitive deficits. Neuroscience 1999, 90: 823-832. PMID: 10218783, DOI: 10.1016/s0306-4522(98)00481-3.Peer-Reviewed Original ResearchConceptsCognitive deficitsSubchronic phencyclidine administrationDorsolateral prefrontal cortexFrontal cortexCortical dopamine transmissionReduced dopaminergic functionFrontostriatal functionDetour taskCognitive performanceDopamine utilizationPhencyclidine exposurePrefrontal cortexPerformance impairmentPrelimbic cortexBrain regionsCognitive dysfunctionCortical impairmentCortical regionsCognitive impairmentDopaminergic functionPhencyclidine administrationDopamine transmissionSpecific subregionsCortexPsychotomimetic drug phencyclidineDopamine D4 receptor antagonist reversal of subchronic phencyclidine-induced object retrieval/detour deficits in monkeys
Jentsch J, Taylor J, Redmond Jr D, Elsworth J, Youngren K, Roth R. Dopamine D4 receptor antagonist reversal of subchronic phencyclidine-induced object retrieval/detour deficits in monkeys. Psychopharmacology 1999, 142: 78-84. PMID: 10102786, DOI: 10.1007/s002130050865.Peer-Reviewed Original ResearchConceptsFrontostriatal systemCognitive functionPrefrontal cortexObject retrieval taskRegulation of cognitionPrimate prefrontal cortexD4 dopamine receptorsNormal control monkeysDR antagonistsCognitive processesDetour taskCognitive deficitsPerformance impairmentBrain regionsCognitive dysfunctionRetrieval tasksFrontal cortexTaskCortexCortical dopaminergicDeficitsDopaminergic systemAntagonist reversalControl subjectsDopamine receptors
1997
Enduring Cognitive Deficits and Cortical Dopamine Dysfunction in Monkeys After Long-Term Administration of Phencyclidine
Jentsch J, Redmond D, Elsworth J, Taylor J, Youngren K, Roth R. Enduring Cognitive Deficits and Cortical Dopamine Dysfunction in Monkeys After Long-Term Administration of Phencyclidine. Science 1997, 277: 953-955. PMID: 9252326, DOI: 10.1126/science.277.5328.953.Peer-Reviewed Original ResearchConceptsDopamine utilizationPrefrontal cortexAtypical antipsychotic drug clozapineLong-term administrationDirect drug effectAntipsychotic drug clozapinePsychotomimetic drug phencyclidineAdministration of phencyclidineDorsolateral prefrontal cortexDopamine hypofunctionPrefrontal cortex functionCognitive dysfunctionPhencyclidine treatmentBehavioral deficitsDopamine dysfunctionPsychiatric disordersDrug effectsDrug clozapineDrug phencyclidineBrain regionsCognitive deficitsCortex functionCognitive functionPhencyclidineCortexPhencyclidine Increases Forebrain Monoamine Metabolism in Rats and Monkeys: Modulation by the Isomers of HA966
Jentsch J, Elsworth J, Redmond D, Roth R. Phencyclidine Increases Forebrain Monoamine Metabolism in Rats and Monkeys: Modulation by the Isomers of HA966. Journal Of Neuroscience 1997, 17: 1769-1775. PMID: 9030635, PMCID: PMC6573388, DOI: 10.1523/jneurosci.17-05-01769.1997.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsChlorocebus aethiopsDopamineExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsFrontal LobeIsomerismMaleNeuronsPhencyclidineProsencephalonPyrrolidinonesRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSchizophrenic PsychologySerotoninSpecies SpecificitySubstantia NigraTegmentum MesencephaliConceptsPCP-induced increasePrefrontal cortexDA turnoverMonoamine metabolismFrontal cortexNucleus accumbensNMDA receptor antagonist phencyclidinePCP-induced changesForebrain of ratsMonkey frontal cortexEffects of PCPDrug-induced activationMedial prefrontal cortexMonoamine transmissionSerotonergic innervationDopamine innervationSerotonin turnoverDopamine turnoverSerotonin utilizationPsychotomimetic propertiesDopamine transmissionDopamine systemBrain regionsPotent effectsRats
1996
Early gestational mesencephalon grafts, but not later gestational mesencephalon, cerebellum or sham grafts, increase dopamine in caudate nucleus of MPTP-treated monkeys
Elsworth J, Sladek J, Taylor J, Collier T, Redmond D, Roth R. Early gestational mesencephalon grafts, but not later gestational mesencephalon, cerebellum or sham grafts, increase dopamine in caudate nucleus of MPTP-treated monkeys. Neuroscience 1996, 72: 477-484. PMID: 8737417, DOI: 10.1016/0306-4522(95)00564-1.Peer-Reviewed Original ResearchConceptsFetal ventral mesencephalonVentral mesencephalonCaudate nucleusGraft siteDopamine neuronsDopamine concentrationsBehavioral recoveryTyrosine hydroxylase-positive neuronsHomovanillic acid/dopamine ratioFetal dopamine neuronsGrafted dopamine neuronsIntrastriatal transplantsParkinsonian primatesGrafted neuronsIntrastriatal transplantationGestational ageTransplant proceduresDopamine ratioDopamine productionSignificant elevationNucleus accumbensDopamine systemSham graftsGraftBrain regions
1995
Selective Increase in Dopamine Utilization in the Shell Subdivision of the Nucleus Accumbens by the Benzodiazepine Inverse Agonist FG 7142
Horger B, Elsworth J, Roth R. Selective Increase in Dopamine Utilization in the Shell Subdivision of the Nucleus Accumbens by the Benzodiazepine Inverse Agonist FG 7142. Journal Of Neurochemistry 1995, 65: 770-774. PMID: 7616234, DOI: 10.1046/j.1471-4159.1995.65020770.x.Peer-Reviewed Original ResearchConceptsBenzodiazepine inverse agonist FG 7142Dopamine utilizationFG 7142Nucleus accumbensShell subdivisionWhole nucleus accumbensVivo microdialysis studyRats 30 minMedial prefrontal cortexMicrodialysis studyDopamine metabolismDopamine releaseDihydroxyphenylacetic acidAccumbensBrain regionsPrefrontal cortexSelective increaseMajor metaboliteTissue concentrationsPrevious reportsAdministration
1991
Anxiogenic β-carboline FG 7142 produces activation of noradrenergic neurons in specific brain regions of rats
Ida Y, Elsworth J, Roth R. Anxiogenic β-carboline FG 7142 produces activation of noradrenergic neurons in specific brain regions of rats. Pharmacology Biochemistry And Behavior 1991, 39: 791-793. PMID: 1784607, DOI: 10.1016/0091-3057(91)90166-y.Peer-Reviewed Original ResearchConceptsBrain noradrenergic activityFG 7142Specific brain regionsCerebral cortexNoradrenergic activityΒ-carboline FG 7142Brain regionsBeta-carboline FG 7142Rat brain noradrenalineBrain noradrenergic systemAntagonist Ro 15Brain noradrenalineAgonist clonidineNoradrenergic neuronsBZD receptorsMHPG levelsRo 15Sixty minNoradrenergic systemSame doseBenzodiazepine receptorsInverse agonistDihydroxyphenylglycolMajor metaboliteMetabolite levels
1987
Homovanillic acid concentrations in brain, CSF and plasma as indicators of central dopamine function in primates
Elsworth J, Leahy D, Roth R, Redmond D. Homovanillic acid concentrations in brain, CSF and plasma as indicators of central dopamine function in primates. Journal Of Neural Transmission 1987, 68: 51-62. PMID: 3806086, DOI: 10.1007/bf01244639.Peer-Reviewed Original ResearchConceptsHomovanillic acid concentrationsDorsal frontal cortexFrontal cortexHVA concentrationsCentral dopamine functionCSF HVA concentrationsCentral dopamine metabolismBasal ganglia areaOrbital frontal cortexSignificant correlationPossible treatment effectsPlasma HVAGanglia areaDopamine metabolismCaudate nucleusCortical areasDopamine functionBrain areasCisternal CSFBrain regionsHVA measurementsCortex contributesCSFCortexOnly significant relationship
1982
Plasma and cerebrospinal fluid 3-methoxy-4-hydroxyphenylethylene glycol (MHPG) as indices of brain norepinephrine metabolism in primates
Elsworth J, Redmond D, Roth R. Plasma and cerebrospinal fluid 3-methoxy-4-hydroxyphenylethylene glycol (MHPG) as indices of brain norepinephrine metabolism in primates. Brain Research 1982, 235: 115-124. PMID: 7188317, DOI: 10.1016/0006-8993(82)90200-1.Peer-Reviewed Original ResearchConceptsConcentration of MHPGBrain areasNorepinephrine metabolismMHPG concentrationsCisternal CSFBrain norepinephrine metabolismFree MHPG concentrationsCentral noradrenergic activityNoradrenergic activityOccipital cortexFree MHPGMHPGBrain regionsCSFSignificant correlationUseful indexVervet monkeysMetabolismPlasmaCortex
1980
Dopamine Oxidation and Its Inhibition by (—)-Deprenyl in Man
Glover V, Elsworth J, Sandler M. Dopamine Oxidation and Its Inhibition by (—)-Deprenyl in Man. Journal Of Neural Transmission. Supplementa 1980, 163-172. PMID: 6776235, DOI: 10.1007/978-3-7091-8582-7_18.Peer-Reviewed Original Research