1999
Striatal dopaminergic correlates of stable parkinsonism and degree of recovery in old-world primates one year after MPTP treatment
Elsworth J, Taylor J, Sladek J, Collier T, Redmond D, Roth R. Striatal dopaminergic correlates of stable parkinsonism and degree of recovery in old-world primates one year after MPTP treatment. Neuroscience 1999, 95: 399-408. PMID: 10658619, DOI: 10.1016/s0306-4522(99)00437-6.Peer-Reviewed Original ResearchConceptsHomovanillic acid/dopamine ratioMPTP treatmentStriatal dopamine levelsDopamine levelsDopamine lossDopamine depletionDopamine ratioStriatal subregionsNucleus accumbensCaudate nucleusDopamine concentrationsOne-yearSeverity categoriesDopamine neuron integrityVentromedial caudate nucleusStriatal dopamine lossHomovanillic acid concentrationsStriatal dopaminergic functionMarked increaseNormal motor performancePaucity of dataMetabolic activityNon-human primatesParkinsonian disabilityTetrahydropyridine (MPTP) modelSpontaneous 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 regionThe role of mesoprefrontal dopamine neurons in the acquisition and expression of conditioned fear in the rat
Morrow B, Elsworth J, Rasmusson A, Roth R. The role of mesoprefrontal dopamine neurons in the acquisition and expression of conditioned fear in the rat. Neuroscience 1999, 92: 553-564. PMID: 10408604, DOI: 10.1016/s0306-4522(99)00014-7.Peer-Reviewed Original ResearchConceptsFear conditioningMesoprefrontal dopamine neuronsClassical fear conditioningMedial prefrontal cortexDopamine neuronsFear responsesConditioned fearPrefrontal cortexFearful behaviorNormal extinctionConditioned responsePsychological stressorsRate of extinctionStress-related changesSham-lesioned ratsConditioningFearAcquisition periodDopamine metabolismNucleus accumbensDopamine levelsAcquisitionRatsNeuronsLesions
1998
Intrastriatal Grafts From Multiple Donors Do Not Result in a Proportional Increase in Survival of Dopamine Neurons in Nonhuman Primates
Sladek J, Collier T, Elsworth J, Roth R, Taylor J, Redmond D. Intrastriatal Grafts From Multiple Donors Do Not Result in a Proportional Increase in Survival of Dopamine Neurons in Nonhuman Primates. Cell Transplantation 1998, 7: 87-96. DOI: 10.1016/s0963-6897(98)00007-4.Peer-Reviewed Original ResearchConceptsDopamine neuronsDouble graftsAdult African green monkeysVentral mesencephalic dopamine neuronsMultiple donorsGrafts of tissueMore dopamine neuronsSymptoms of parkinsonismMesencephalic dopamine neuronsDopamine cell survivalHuman clinical trialsAfrican green monkeysIntrastriatal graftsPositive neuronsTotal numberClinical trialsDopamine levelsCaudate nucleusRecipient animalsGraftGrafted tissueNeuronsGreen monkeysNonhuman primatesDorsoventral extentIntrastriatal Grafts from Multiple Donors do not Result in a Proportional Increase in Survival of Dopamine Neurons in Nonhuman Primates
Sladek J, Collier T, Elsworth J, Roth R, Taylor J, Redmond D. Intrastriatal Grafts from Multiple Donors do not Result in a Proportional Increase in Survival of Dopamine Neurons in Nonhuman Primates. Cell Transplantation 1998, 7: 87-96. PMID: 9588591, DOI: 10.1177/096368979800700204.Peer-Reviewed Original ResearchConceptsDopamine neuronsDouble graftsAdult African green monkeysVentral mesencephalic dopamine neuronsMultiple donorsGrafts of tissueMore dopamine neuronsSymptoms of parkinsonismMesencephalic dopamine neuronsDopamine cell survivalHuman clinical trialsAfrican green monkeysIntrastriatal graftsPositive neuronsTotal numberClinical trialsDopamine levelsCaudate nucleusRecipient animalsGraftGrafted tissueNeuronsGreen monkeysNonhuman primatesDorsoventral extent
1992
Amphetamine‐stimulated dopamine release competes in vivo for [123I]IBZM binding to the D2 receptor in nonhuman primates
Innis R, Malison R, Al‐Tikriti M, Hoffer P, Sybirska E, Seibyl J, Zoghbi S, Baldwin R, Laruelle M, Smith E, Charney D, Heninger G, Elsworth J, Roth R. Amphetamine‐stimulated dopamine release competes in vivo for [123I]IBZM binding to the D2 receptor in nonhuman primates. Synapse 1992, 10: 177-184. PMID: 1532675, DOI: 10.1002/syn.890100302.Peer-Reviewed Original ResearchConceptsBrain uptakeD2 receptorsD2 receptor antagonist haloperidolSpecific brain uptakeStriatal dopamine levelsAdministration of haloperidolReceptor antagonist haloperidolReceptor antagonist propertiesEndogenous neurotransmitter dopamineNonhuman primate experimentsRate of washoutSingle photon emissionDopamine receptor radioligandReserpine pretreatmentEndogenous dopamineAntagonist haloperidolDopamine levelsD-amphetamineAntagonist propertiesNormothermic conditionsMin postinjectionReceptor radioligandRadioligand bindingEndogenous storesRadiotracer binding
1988
Chapter 64 Fetal dopamine neural grafts: extended reversal of methylphenyltetrahydropyridine-induced parkinsonism in monkeys
Sladek J, Redmond D, Collier T, Blount J, Elsworth J, Taylor J, Roth R. Chapter 64 Fetal dopamine neural grafts: extended reversal of methylphenyltetrahydropyridine-induced parkinsonism in monkeys. Progress In Brain Research 1988, 78: 497-506. PMID: 3266802, DOI: 10.1016/s0079-6123(08)60323-4.Peer-Reviewed Original ResearchConceptsDopamine neuronsTherapeutic interventionsHuman parkinsonismHost brainFunctional recoveryDopaminergic neuronsSubstantia nigraCell graftsDopamine levelsFetal brainGraft siteTrophic factorsHuman neuronsAnatomical substrateParkinsonismCerebellar tissueControl transplantsNeuronsGraftBrain activityPhenotype characteristicBrainInterventionTransplantationTransplant