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 region
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 ResearchMeSH KeywordsAnimalsCercopithecusDisease Models, AnimalFetal Tissue TransplantationImmunohistochemistryMaleMesencephalonParkinson Disease, SecondarySynaptophysinConceptsGraft-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 remodeling
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 treatmentMetabolic energy capacity of dopaminergic grafts and the implanted striatum in parkinsonian nonhuman primates as visualized with cytochrome oxidase histochemistry
Collier T, Redmond D, Roth R, Elsworth J, Taylor J, Sladek J. Metabolic energy capacity of dopaminergic grafts and the implanted striatum in parkinsonian nonhuman primates as visualized with cytochrome oxidase histochemistry. Cell Transplantation 1997, 6: 135-140. DOI: 10.1016/s0963-6897(97)00003-1.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsBrain Tissue TransplantationChlorocebus aethiopsCorpus StriatumDopamineElectron Transport Complex IVEnergy MetabolismFetal Tissue TransplantationGestational AgeImmunohistochemistryMesencephalonNeuronsParkinson Disease, SecondaryTyrosine 3-MonooxygenaseConceptsDA neuronsEmbryonic ventral mesencephalic tissueParkinsonian nonhuman primatesStriatum of DATyrosine hydroxylase immunocytochemistryVentral mesencephalic tissueVentral mesencephalic graftsCytochrome oxidase histochemistryCytochrome oxidase stainingMitochondrial enzyme cytochrome oxidaseLocal energy metabolismActive innervationBilateral graftsNeuron contentDopaminergic graftsMesencephalic graftsMesencephalic tissueHost brainBrain metabolismEnzyme cytochrome oxidaseCO stainingTissue transplantsGraftMetabolic activityNonhuman primatesMetabolic Energy Capacity of Dopaminergic Grafts and the Implanted Striatum in Parkinsonian Nonhuman Primates as Visualized with Cytochrome Oxidase Histochemistry
Collier T, Redmond D, Roth R, Elsworth J, Taylor J, Sladek J. Metabolic Energy Capacity of Dopaminergic Grafts and the Implanted Striatum in Parkinsonian Nonhuman Primates as Visualized with Cytochrome Oxidase Histochemistry. Cell Transplantation 1997, 6: 135-140. PMID: 9142445, DOI: 10.1177/096368979700600207.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsBrain Tissue TransplantationChlorocebus aethiopsCorpus StriatumDopamineElectron Transport Complex IVEnergy MetabolismFetal Tissue TransplantationGestational AgeImmunohistochemistryMesencephalonNeuronsParkinson Disease, SecondaryTyrosine 3-MonooxygenaseConceptsDA neuronsEmbryonic ventral mesencephalic tissueParkinsonian nonhuman primatesStriatum of DATyrosine hydroxylase immunocytochemistryVentral mesencephalic tissueVentral mesencephalic graftsBrain energy metabolismCytochrome oxidase histochemistryCytochrome oxidase stainingMitochondrial enzyme cytochrome oxidaseLocal energy metabolismEnergy metabolismActive innervationBilateral graftsNeuron contentDopaminergic graftsMesencephalic graftsMesencephalic tissueHost brainEnzyme cytochrome oxidaseCO stainingTissue transplantsGraftMetabolic activity
1996
Restoration of dopamine transporter density in the striatum of fetal ventral mesencephalon-grafted, but not sham-grafted, MPTP-treated parkinsonian monkeys
Elsworth J, Brittan M, Taylor J, Sladek J, Al-Tikriti M, Zea-Ponce Y, Innis R, Redmond D, Roth R. Restoration of dopamine transporter density in the striatum of fetal ventral mesencephalon-grafted, but not sham-grafted, MPTP-treated parkinsonian monkeys. Cell Transplantation 1996, 5: 315-325. DOI: 10.1016/0963-6897(95)02034-9.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsAutoradiographyBrain Tissue TransplantationCarrier ProteinsChlorocebus aethiopsCocaineDopamineDopamine Plasma Membrane Transport ProteinsFetal Tissue TransplantationHomovanillic AcidIodine RadioisotopesMaleMembrane GlycoproteinsMembrane Transport ProteinsMesencephalonNeostriatumNerve Tissue ProteinsParkinson Disease, SecondaryProtein BindingPutamenConceptsFetal dopamine neuronsDopamine transporter densityDopamine neuronsParkinsonian monkeysBehavioral recoveryTransporter densityCaudate nucleusNeural graftingDopamine systemImplantation procedureDopamine concentrationsFull behavioral recoveryPutamen of MPTPStriatal dopamine deficiencyStriatal dopamine concentrationsDopamine-depleted striatumStriatum of MPTPDopamine depletionVentral mesencephalonDopamine deficiencyMotor abnormalitiesDopaminergic innervationUseful treatmentStriatal nucleiAdult striatumRestoration of Dopamine Transporter Density in the Striatum of Fetal Ventral Mesencephalon-Grafted, but not Sham-Grafted, Mptp-Treated Parkinsonian Monkeys
Elsworth J, Brittan M, Taylor J, Sladek J, Al-Tikriti M, Zea-Ponce Y, Innis R, Redmond D, Roth R. Restoration of Dopamine Transporter Density in the Striatum of Fetal Ventral Mesencephalon-Grafted, but not Sham-Grafted, Mptp-Treated Parkinsonian Monkeys. Cell Transplantation 1996, 5: 315-325. PMID: 8689042, DOI: 10.1177/096368979600500220.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsAutoradiographyBrain Tissue TransplantationCarrier ProteinsChlorocebus aethiopsCocaineDopamineDopamine Plasma Membrane Transport ProteinsFetal Tissue TransplantationHomovanillic AcidIodine RadioisotopesMaleMembrane GlycoproteinsMembrane Transport ProteinsMesencephalonNeostriatumNerve Tissue ProteinsParkinson Disease, SecondaryProtein BindingPutamenConceptsFetal dopamine neuronsDopamine transporter densityDopamine neuronsParkinsonian monkeysBehavioral recoveryTransporter densityCaudate nucleusNeural graftingDopamine systemImplantation procedureDopamine concentrationsFull behavioral recoveryPutamen of MPTPStriatal dopamine deficiencyStriatal dopamine concentrationsDopamine-depleted striatumStriatum of MPTPDopamine depletionVentral mesencephalonDopamine deficiencyMotor abnormalitiesDopaminergic innervationUseful treatmentStriatal nucleiAdult striatum
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 nerveNovel Radioligands for the Dopamine Transporter Demonstrate the Presence of Intrastriatal Nigral Grafts in the MPTP-Treated Monkey: Correlation with Improved Behavioral Function
Elsworth J, Al-Tikriti M, Sladek J, Taylor J, Innis R, Redmond D, Roth R. Novel Radioligands for the Dopamine Transporter Demonstrate the Presence of Intrastriatal Nigral Grafts in the MPTP-Treated Monkey: Correlation with Improved Behavioral Function. Experimental Neurology 1994, 126: 299-304. PMID: 7925828, DOI: 10.1006/exnr.1994.1068.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsAutoradiographyBrain Tissue TransplantationCarrier ProteinsChlorocebus aethiopsCocaineCorpus StriatumDopamine Plasma Membrane Transport ProteinsFetal Tissue TransplantationIodine RadioisotopesMaleMembrane GlycoproteinsMembrane Transport ProteinsNerve Tissue ProteinsParkinson Disease, SecondaryRadioligand AssaySerotonin Plasma Membrane Transport ProteinsSubstantia NigraTransplantation, HeterotopicTransplantation, HomologousConceptsCaudate nucleusFetal ventral mesencephalic cellsIntrastriatal nigral graftsVentral mesencephalic cellsAdult MPTPNigral graftsSerotonergic fibersTransplantation procedureMesencephalic cellsNovel radioligandNeurochemical identityDopamine transporterTransporter sitesSerotonin transporterBehavioral functionsMPTPCocaine analogMonkeysCocaine derivativePreliminary studyHigh affinityDopaminergicGraft
1993
Neural Transplantation for Neurodegenerative Diseases: Past, Present, and Futurea
REDMOND D, ROTH R, SPENCER D, NAFTOLIN F, LERANTH C, ROBBINS R, MAREK K, ELSWORTH J, SASS K, TAYLOR J, SLADEK J. Neural Transplantation for Neurodegenerative Diseases: Past, Present, and Futurea. Annals Of The New York Academy Of Sciences 1993, 695: 258-266. PMID: 8239293, DOI: 10.1111/j.1749-6632.1993.tb23064.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain Tissue TransplantationFetal Tissue TransplantationHumansParkinson DiseaseParkinson Disease, SecondaryConceptsNeural transplantationParkinson's diseaseDopamine neuronsCellular replacementClinical treatmentFetal cellsNeural tissue transplantsNeural tissueIdiopathic Parkinson's diseaseDopamine-producing cellsFunctional effectsBest medical treatmentFetal neural tissueImportant functional effectsHuman neural tissueEssential neuromodulatorDrug therapyIdiopathic diseaseClinical conditionsTherapeutic experimentsBrain cellsIneffective treatmentMedical treatmentTissue transplantsTransplantation
1991
Dihydrexidine, a full dopamine D1 agonist, reduces MPTP-ioduced parkinsonism in monkeys
Taylor J, Lawrence M, Redmond D, Elsworth J, Roth R, Nichols D, Mailman R. Dihydrexidine, a full dopamine D1 agonist, reduces MPTP-ioduced parkinsonism in monkeys. European Journal Of Pharmacology 1991, 199: 389-391. PMID: 1680717, DOI: 10.1016/0014-2999(91)90508-n.Peer-Reviewed Original ResearchThe 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 ResearchMeSH KeywordsAnalysis of VarianceAnimalsBehavior, AnimalBenzazepinesBlinkingChlorocebus aethiopsDopamine AntagonistsMaleParkinson Disease, SecondaryReceptors, DopamineReceptors, Dopamine D1ConceptsSCH 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
1989
Symptomatic and asymptomatic 1 -methyl-4-phenyl-1,2,3,6-tetrahydropyridinetreated primates: Biochemical changes in striatal regions
Elsworth J, Deutch A, Redmond D, Taylor J, Sladek J, Roth R. Symptomatic and asymptomatic 1 -methyl-4-phenyl-1,2,3,6-tetrahydropyridinetreated primates: Biochemical changes in striatal regions. Neuroscience 1989, 33: 323-331. PMID: 2622529, DOI: 10.1016/0306-4522(89)90212-1.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCercopithecusCorpus StriatumDopamineHomovanillic AcidMaleMPTP PoisoningParkinson Disease, SecondaryConceptsHomovanillic acid concentrationsParkinson's diseaseStriatal regionsHomovanillic acid/dopamine ratioGross motor abnormalitiesDepletion of dopamineHomovanillic acid levelsLoss of dopamineIdiopathic Parkinson's diseaseCaudate nucleus dopamineAsymptomatic monkeysTetrahydropyridine (MPTP) treatmentAsymptomatic groupSymptomatic groupDopamine lossTetrahydropyridine (MPTP) toxicityMotor abnormalitiesDopamine ratioCaudate nucleusSignificant negative correlationVentromedial regionStriatum
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 ResearchMeSH Keywords1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsBrainChlorocebus aethiopsDopamineFetusMaleNerve TissueParkinson Disease, SecondaryPyridinesConceptsDopamine neuronsTherapeutic interventionsHuman parkinsonismHost brainFunctional recoveryDopaminergic neuronsSubstantia nigraCell graftsDopamine levelsFetal brainGraft siteTrophic factorsHuman neuronsAnatomical substrateParkinsonismCerebellar tissueControl transplantsNeuronsGraftBrain activityPhenotype characteristicBrainInterventionTransplantationTransplant