Parkinson Diseasealpha-SynucleinAntiparkinson AgentsParkinsonian DisordersParkinson Disease, SecondaryLevodopaGlucosylceramidaseSubstantia NigraLewy BodiesDeep Brain StimulationMultiple System AtrophyDopamine1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineDopaminergic NeuronsOxidopamineSubthalamic NucleusLewy Body DiseaseNeurodegenerative DiseasesMPTP PoisoningGait Disorders, NeurologicSupranuclear Palsy, ProgressivePostural BalanceDance TherapyPutamenEssential TremorUbiquitin-Protein LigasesNeuronsPedunculopontine Tegmental NucleusBrainREM Sleep Behavior DisorderOncogene ProteinsGaucher DiseaseTyrosine 3-MonooxygenasePergolideGaitCarbidopaNerve Degenerationbeta-SynucleinHypokinesiaCorpus StriatumDementiaGlobus PallidusMovement DisordersMesencephalonGenetic Predisposition to DiseaseAge of OnsetMutationManebNeuroprotective AgentsMitochondriaDyskinesias1-Methyl-4-phenylpyridiniumSeverity of Illness IndexOlfaction DisordersNeuropsychological TestsSynucleinsTropanesDopamine Plasma Membrane Transport ProteinsDisease Models, AnimalDopamine AgentsCase-Control StudiesDopamine AgonistsApathyPositron-Emission TomographyAlzheimer DiseaseBenzothiazolesSleep Arousal DisordersAutophagytau ProteinsPrimary DysautonomiasRotenoneAdrenergic AgentsGenetic TestingPostmortem ChangesCognition DisordersBasal GangliaManganese PoisoningDyskinesia, Drug-InducedPure Autonomic FailureGenome-Wide Association StudyParaquatApomorphineAmyloidNeurologic ExaminationSympatholyticsNerve Tissue ProteinsPemolineSelenoprotein WOxidative StressDreamsStereotaxic TechniquesPolymorphism, Single NucleotideReceptors, Dopamine3,4-Dihydroxyphenylacetic AcidReality TherapyMotor SkillsDeglutition DisordersIntracellular Signaling Peptides and ProteinsSweat Gland DiseasesPenetrance