2001
Embryonic ventral mesencephalic grafts to the substantia nigra of MPTP‐treated monkeys: Feasibility relevant to multiple‐target grafting as a therapy for Parkinson's disease
Collier TJ, Sortwell CE, Elsworth JD, Taylor JR, Roth RH, Sladek JR, Redmond DE. Embryonic ventral mesencephalic grafts to the substantia nigra of MPTP‐treated monkeys: Feasibility relevant to multiple‐target grafting as a therapy for Parkinson's disease. The Journal Of Comparative Neurology 2001, 442: 320-330. PMID: 11793337, DOI: 10.1002/cne.10108.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAxonsBrain Tissue TransplantationCell DifferentiationChlorocebus aethiopsDopamineGraft SurvivalHomovanillic AcidImmunohistochemistryMaleNeostriatumNerve RegenerationNeuritesNeuronsParkinsonian DisordersRecovery of FunctionStem Cell TransplantationStem CellsSubstantia NigraTreatment OutcomeTyrosine 3-MonooxygenaseConceptsSubstantia nigraParkinson's diseaseDA neuronsVentral mesencephalonTyrosine hydroxylaseTH-positive fiber densityEmbryonic DA neuronsEmbryonic dopamine neuronsRostral substantia nigraStriatal DA depletionVentral mesencephalic graftsBasal ganglia circuitryBasal ganglia structuresSuboptimal therapeutic outcomesAfrican green monkeysDA modulationGrafted neuronsVM graftsMesencephalic graftsParkinsonian monkeysSN neuronsDA depletionReplacement therapyDA replacementDA levels
1998
Upregulation of striatal D2 receptors in the MPTP-treated vervet monkey is reversed by grafts of fetal ventral mesencephalon: an autoradiographic study
Elsworth J, Brittan M, Taylor J, Sladek J, Redmond D, Innis R, Zea-Ponce Y, Roth R. Upregulation of striatal D2 receptors in the MPTP-treated vervet monkey is reversed by grafts of fetal ventral mesencephalon: an autoradiographic study. Brain Research 1998, 795: 55-62. PMID: 9622593, DOI: 10.1016/s0006-8993(98)00252-2.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsAutoradiographyBenzofuransBrain Tissue TransplantationChlorocebus aethiopsCorpus StriatumDisease Models, AnimalDopamine AgentsFetal Tissue TransplantationImage Processing, Computer-AssistedIodine RadioisotopesMesencephalonParkinson Disease, SecondaryRadioligand AssayReceptors, Dopamine D2Up-RegulationConceptsFetal ventral mesencephalonD2 receptor bindingVentral mesencephalonDorsal striatumAutoradiographic studyDopamine uptake site densityPostsynaptic dopamine receptor activationVentral striatumDopamine concentrationsStriatal D2 receptor bindingReceptor bindingD2 receptor upregulationPostsynaptic dopamine transmissionTetrahydropyridine-treated monkeysStriatal D2 receptorsDopamine receptor activationPrevious autoradiographic studiesAfrican green monkeysDonor neuronsIntrastriatal graftingParkinsonian primatesNeural transplantationReceptor upregulationStriatal circuitryMotor functionPattern of synaptophysin immunoreactivity within mesencephalic grafts following transplantation in a parkinsonian primate model
Sortwell C, Blanchard B, Collier T, Elsworth J, Taylor J, Roth R, Redmond D, Sladek J. Pattern of synaptophysin immunoreactivity within mesencephalic grafts following transplantation in a parkinsonian primate model. Brain Research 1998, 791: 117-124. PMID: 9593853, DOI: 10.1016/s0006-8993(98)00086-9.Peer-Reviewed Original ResearchConceptsGraft-host interactionsMesencephalic graftsFunctional synapsesTyrosine hydroxylaseCerebellar tissuePericellular arraysEmbryonic cerebellar tissueEmbryonic ventral mesencephalonGrafted dopamine neuronsNerve terminal differentiationTH-positive neuronsStriatum of MPTPEnzyme tyrosine hydroxylaseSynthetic enzyme tyrosine hydroxylaseAfrican green monkeysNeurochemical subtypesStriatal portionDA neuronsSynaptophysin immunoreactivityVentral mesencephalonGraft typeDopamine neuronsPrimate modelStriatal targetsSynaptic remodelingIntrastriatal 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
1997
Severe long-term 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonism in the vervet monkey (Cercopithecus aethiops sabaeus)
Taylor J, Elsworth J, Roth R, Sladek J, Redmond D. Severe long-term 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonism in the vervet monkey (Cercopithecus aethiops sabaeus). Neuroscience 1997, 81: 745-755. PMID: 9316026, DOI: 10.1016/s0306-4522(97)00214-5.Peer-Reviewed Original ResearchConceptsParkinson's diseaseSevere parkinsonismAdult male African green monkeysMale African green monkeysTetrahydropyridine-induced parkinsonismMPTP-induced parkinsonismIdiopathic Parkinson's diseaseNovel therapeutic treatmentsLong-term deficitsAfrican green monkeysGroups of animalsNon-human primatesMPTP treatmentParkinsonian monkeysMPTP administrationVervet monkeysFunctional deficitsInitial severityStable parkinsonismBehavioral deficitsAnimal modelsParkinsonismParkinsonian subjectsMPTPTherapeutic treatment
1995
Sham surgery does not ameliorate MPTP-induced behavioral deficits in monkeys
Taylor J, Elsworth J, Sladek J, Collier T, Roth R, Redmond D. Sham surgery does not ameliorate MPTP-induced behavioral deficits in monkeys. Cell Transplantation 1995, 4: 13-26. DOI: 10.1016/0963-6897(94)00035-i.Peer-Reviewed Original ResearchConceptsFetal mesencephalic tissueSubstantia nigra graftsSham surgeryBehavioral improvementMesencephalic tissueBehavioral deficitsAdult male African green monkeysDopamine concentrationsMale African green monkeysFetal dopamine neuronsSystemic MPTP administrationIdiopathic Parkinson's diseaseStriatum of MPTPSham-operated monkeysPostmortem brain tissueAfrican green monkeysMore variable effectsNeuronal synaptic connectionsHost neuronsHost striatumHost brainMPTP administrationGestational ageSubstantia nigraNeuronal effectsSham Surgery does not Ameliorate MPTP-Induced Behavioral Deficits in Monkeys
Taylor J, Elsworth J, Sladek J, Collier T, Roth R, Redmond D. Sham Surgery does not Ameliorate MPTP-Induced Behavioral Deficits in Monkeys. Cell Transplantation 1995, 4: 13-26. PMID: 7728327, DOI: 10.1177/096368979500400105.Peer-Reviewed Original ResearchConceptsFetal mesencephalic tissueSubstantia nigra graftsSham surgeryBehavioral improvementMesencephalic tissueBehavioral deficitsAdult male African green monkeysDopamine concentrationsMale African green monkeysFetal dopamine neuronsSystemic MPTP administrationIdiopathic Parkinson's diseaseStriatum of MPTPSham-operated monkeysPostmortem brain tissueAfrican green monkeysMore variable effectsNeuronal synaptic connectionsHost neuronsHost striatumHost brainMPTP administrationGestational ageSubstantia nigraNeuronal effects
1994
Peripheral nerve-dopamine neuron co-grafts in mptp-treated monkeys: Augmentation of tyrosine hydroxylase-positive fiber staining and dopamine content in host systems
Collier T, Elsworth J, Taylor J, Sladek J, Roth R, Redmond D. Peripheral nerve-dopamine neuron co-grafts in mptp-treated monkeys: Augmentation of tyrosine hydroxylase-positive fiber staining and dopamine content in host systems. Neuroscience 1994, 61: 875-889. PMID: 7838385, DOI: 10.1016/0306-4522(94)90410-3.Peer-Reviewed Original ResearchConceptsDopamine neuronsCaudate nucleusNon-human primatesLateral ventricleSeptal areaDopamine systemEmbryonic ventral mesencephalic tissueTyrosine hydroxylase-positive fibersHomovanillic acid/dopamine ratioDopamine neuron graftsDopamine-depleted monkeysEmbryonic ventral mesencephalonGrafted dopamine neuronsVentral mesencephalic tissueLateral septal areaLevels of dopamineMesencephalic dopamine neuronsMetabolite homovanillic acidBrain dopamine systemsMPTP-treated monkeysDirection of normalizationAfrican green monkeysInjury-induced regenerationMesencephalic tissueSaphenous nerve
1993
Fetal Dopamine Cell Survival after Transplantation Is Dramatically Improved at a Critical Donor Gestational Age in Nonhuman Primates
Sladek J, Elsworth J, Roth R, Evans L, Collier T, Cooper S, Taylor J, Redmond D. Fetal Dopamine Cell Survival after Transplantation Is Dramatically Improved at a Critical Donor Gestational Age in Nonhuman Primates. Experimental Neurology 1993, 122: 16-27. PMID: 8101820, DOI: 10.1006/exnr.1993.1103.Peer-Reviewed Original ResearchConceptsDopamine neuronsCaudate nucleusMesencephalic dopamine cell groupsTyrosine hydroxylase-positive neuronsTissue dopamine levelsUnfixed brain slicesDopamine cell groupsCell survivalDopamine cell survivalDopamine cell numberDays of gestationEarly gestation tissuesTime of implantationAfrican green monkeysVideo-based imagingGraft survivalMesencephalic tissueDonor graftsGestational ageNeural graftsNeurological disabilityDopaminergic neuronsGraft sizeDopamine contentSingle graft
1991
D1 and D2 dopamine receptors independently regulate spontaneous blink rate in the vervet monkey.
Elsworth J, Lawrence M, Roth R, Taylor J, Mailman R, Nichols D, Lewis M, Redmond D. D1 and D2 dopamine receptors independently regulate spontaneous blink rate in the vervet monkey. Journal Of Pharmacology And Experimental Therapeutics 1991, 259: 595-600. PMID: 1682479.Peer-Reviewed Original ResearchConceptsD2 dopamine receptorsDopamine receptorsSpontaneous blink rateBlink ratePrior administrationSCH 23390D1 agonistPartial D1 agonistSpecific D1 antagonistSpecific D2 antagonistRole of D1Dose-dependent increaseSpontaneous eye blink rateFull D1 agonistSpecific D2 agonistReceptor-selective drugsAfrican green monkeysEye blink rateDopamine agonistsSKF 38393D2 agonistD1 antagonistD2 antagonistReceptor subtypesD2 receptorsThe D1 receptor antagonist, SCH 23390, induces signs of parkinsonism in African green monkeys
Lawrence M, Redmond D, Elsworth J, Taylor J, Roth R. The D1 receptor antagonist, SCH 23390, induces signs of parkinsonism in African green monkeys. Life Sciences 1991, 49: pl229-pl234. PMID: 1836030, DOI: 10.1016/0024-3205(91)90299-q.Peer-Reviewed Original ResearchConceptsSCH 23390African green monkeysD1 antagonistHealthy African green monkeysGreen monkeysParkinsonian side effectsD1 receptor antagonistPoverty of movementSigns of parkinsonismSelective D1 antagonistFull D1 agonistParkinsonian signsReceptor antagonistD1 agonistD1 receptorsSystemic administrationParkinson's diseasePsychiatric disordersSide effectsMotor changesClinical useParkinsonismAntagonistBlink rateMonkeys