Parkinson DiseaseNeurogliaalpha-SynucleinGlial Cell Line-Derived Neurotrophic Factor ReceptorsNeuronsAntiparkinson AgentsParkinsonian DisordersAstrocytesParkinson Disease, SecondaryBrainSubstantia NigraNerve Tissue ProteinsLevodopaNerve Growth FactorsGlial Cell Line-Derived Neurotrophic FactorGlucosylceramidaseGlial Fibrillary Acidic ProteinDopamineLewy BodiesRetinaImmunohistochemistry1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineCentral Nervous SystemOligodendrogliaCells, CulturedNeurodegenerative DiseasesDeep Brain StimulationMultiple System AtrophyGliosisOxidopamineDopaminergic NeuronsProto-Oncogene Proteins c-retGlial Cell Line-Derived Neurotrophic FactorsMPTP PoisoningNerve DegenerationRats, Sprague-DawleyCell DifferentiationAxonsDisease Models, AnimalNeuroprotective AgentsSubthalamic NucleusSchwann CellsCerebral CortexCorpus StriatumPutamenLewy Body DiseaseMesencephalonTyrosine 3-MonooxygenaseNeurturinSupranuclear Palsy, ProgressiveGait Disorders, NeurologicStem CellsEpendymoglial CellsAnimals, NewbornPostural BalanceMutationDrosophila ProteinsSpinal CordEnteric Nervous SystemOptic NerveDance TherapyMice, TransgenicNestinMyelin SheathMice, Inbred C57BLOncogene ProteinsUbiquitin-Protein LigasesGliomaTime FactorsEssential TremorS100 ProteinsCell SurvivalJC VirusRNA, MessengerS100 Calcium Binding Protein beta SubunitAmino Acid Transport System X-AGCell CountLeechesAquaporin 4CerebellumGene Expression Regulation, DevelopmentalCell DeathPedunculopontine Tegmental NucleusGlutamic AcidREM Sleep Behavior DisorderIntermediate Filament ProteinsNerve RegenerationNervous SystemRats, WistarGaucher DiseasePergolideGene Expression RegulationGaitNeural Stem CellsHippocampusBlotting, WesternCarbidopaCell LineageExcitatory Amino Acid Transporter 1Ependyma