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 region
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
1994
Novel 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
1991
Grafting of fetal substantia nigra to striatum reverses behavioral deficits induced by MPTP in primates: a comparison with other types of grafts as controls
Taylor J, Elsworth J, Roth R, Sladek J, Collier T, Redmond D. Grafting of fetal substantia nigra to striatum reverses behavioral deficits induced by MPTP in primates: a comparison with other types of grafts as controls. Experimental Brain Research 1991, 85: 335-348. PMID: 1893983, DOI: 10.1007/bf00229411.Peer-Reviewed Original ResearchConceptsCaudate nucleusBehavioral deficitsHealthy behaviorsFetal substantia nigra cellsFetal substantia nigraIdiopathic Parkinson's diseasePoverty of movementType of graftDays/weekSubstantia nigra cellsTime of sacrificePre-treatment levelsSN cellsSpecific behavioral effectsMPTP treatmentMPTP toxicityParkinsonian signsSubstantia nigraControl subjectsInitiation of movementBrain sitesLimb tremorParkinson's diseaseControl animalsMPTP
1990
MPTP reduces dopamine and norepinephrine concentrations in the supplementary motor area and cingulate cortex of the primate
Elsworth J, Deutch A, Redmond D, Sladek J, Roth R. MPTP reduces dopamine and norepinephrine concentrations in the supplementary motor area and cingulate cortex of the primate. Neuroscience Letters 1990, 114: 316-322. PMID: 2402341, DOI: 10.1016/0304-3940(90)90583-u.Peer-Reviewed Original ResearchConceptsSupplementary motor areaDopamine innervationMotor areaParkinson's diseaseMPTP-induced degenerationStriatal dopamine innervationStriatal dopamine concentrationsAsymptomatic MPTPSymptomatic MPTPConcentration of dopamineNorepinephrine levelsNorepinephrine concentrationsCortical involvementDopaminergic innervationCingulate sulcusCingulate cortexMPTPCortical regionsDopamine concentrationsInnervationDiseaseDopamineBehavioral changesCortexDegeneration
1987
Effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on catecholamines and metabolites in primate brain and CSF
Elsworth J, Deutch A, Redmond D, Sladek J, Roth R. Effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on catecholamines and metabolites in primate brain and CSF. Brain Research 1987, 415: 293-299. PMID: 3496938, DOI: 10.1016/0006-8993(87)90211-3.Peer-Reviewed Original ResearchConceptsHVA/dopamineVentral tegmental areaMPTP treatmentHomovanillic acidTegmental areaDorsal ventral tegmental areaMesolimbic DA systemCSF homovanillic acidAfrican green monkeysHVA concentrationsNigrostriatal damageMesolimbic systemTetrahydropyridine (MPTP) administrationDA lossNE concentrationCaudate nucleusNucleus accumbensParkinson's diseaseStriatal regionsPrimate brainBaseline levelsVentral partMotor disabilityMPTPGreen monkeys
1986
Preferential vulnerability of A8 dopamine neurons in the primate to the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine
Deutch A, Elsworth J, Goldstein M, Fuxe K, Redmond D, Sladek J, Roth R. Preferential vulnerability of A8 dopamine neurons in the primate to the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Neuroscience Letters 1986, 68: 51-56. PMID: 3487756, DOI: 10.1016/0304-3940(86)90228-4.Peer-Reviewed Original ResearchConceptsA8 regionDA neuronsSubstantia nigraDopamine cell groupsDopaminergic neuronsDopamine neuronsImmunohistochemical examinationPreferential vulnerabilityHomovanillic acidBiochemical assessmentCell groupsMarked depletionNeuronsSame animalsSignificant decreaseMarked lossMPTPStriatumNigraVervet monkeysMidbrainTetrahydropyridine