Substantia NigraDopamineParkinsonian DisordersParkinson DiseaseSubstantia GelatinosaTyrosine 3-MonooxygenaseDopaminergic NeuronsCorpus StriatumMesencephalonOxidopamine1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineNeuronsMPTP PoisoningParkinson Disease, SecondarySubstantia Innominataalpha-SynucleinBasal GangliaTegmentum MesencephaliGlobus PallidusLewy BodiesVentral Tegmental AreaRats, Sprague-DawleyNerve DegenerationNeostriatumApomorphineCaudate NucleusBrainReceptors, DopamineReceptors, Dopamine D2LevodopaDopamine AgentsPutamenNeural PathwaysAutoradiography1-Methyl-4-phenylpyridiniumSubthalamic NucleusDopamine AgonistsDopamine Plasma Membrane Transport ProteinsHydroxydopamines3,4-Dihydroxyphenylacetic AcidDopamine AntagonistsBehavior, Animalgamma-Aminobutyric AcidSynucleinsDisease Models, AnimalExtrapyramidal TractsRed NucleusQuinpiroleMotor ActivityImmunohistochemistryGlial Cell Line-Derived Neurotrophic FactorHypokinesiaNeurotoxinsAntiparkinson AgentsThalamusNeuroprotective AgentsSympatholyticsMice, Inbred C57BL2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineBrain ChemistryReceptors, Dopamine D1SulpirideMelaninsNerve Tissue ProteinsHomovanillic AcidReceptors, Dopamine D3NomifensineHaloperidolReceptor, PAR-1Rats, WistarStereotaxic TechniquesAction PotentialsReceptor, PAR-2Brain Tissue TransplantationBenzazepinesMedial Forebrain BundleStilbamidinesElectric StimulationMazindolLocus CoeruleusCell CountParaquatMuscimolRats, Inbred StrainsAmphetamineAdrenergic AgentsSynaptic TransmissionMice, Neurologic MutantsAphakiaMicrogliaFetal Tissue TransplantationCalbindinsGABA AntagonistsBicucullineEntopeduncular NucleusCell DeathVesicular Monoamine Transport ProteinsElectrophysiologyNissl BodiesDiencephalon