Parkinson DiseaseDuodenoscopyCrohn Diseasealpha-SynucleinAntiparkinson AgentsParkinsonian DisordersLevodopaGlucosylceramidaseParkinson Disease, SecondaryLewy BodiesSubstantia NigraDeep Brain Stimulation1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineDopamineDopaminergic NeuronsSubthalamic NucleusMultiple System AtrophyLewy Body DiseaseOxidopamineGait Disorders, NeurologicMPTP PoisoningPostural BalanceNeurodegenerative DiseasesDance TherapyPutamenSupranuclear Palsy, ProgressiveUbiquitin-Protein LigasesEssential TremorPedunculopontine Tegmental NucleusNeuronsGaitBrainREM Sleep Behavior DisorderGaucher DiseaseTyrosine 3-MonooxygenasePergolideOncogene Proteinsbeta-SynucleinHypokinesiaNerve DegenerationCarbidopaCorpus StriatumDementiaGlobus PallidusGenetic Predisposition to DiseaseManebAge of OnsetMovement DisordersMutationMesencephalonMitochondriaSynucleins1-Methyl-4-phenylpyridiniumNeuropsychological TestsSeverity of Illness IndexNeuroprotective AgentsTropanesDopamine Plasma Membrane Transport ProteinsCase-Control StudiesDisease Models, AnimalDyskinesiasPositron-Emission TomographySleep Arousal DisordersApathyOlfaction DisordersBenzothiazolesPrimary DysautonomiasAlzheimer DiseasePostmortem Changestau ProteinsDopamine AgentsAutophagyGenetic TestingRotenoneManganese PoisoningDopamine AgonistsDyskinesia, Drug-InducedPure Autonomic FailureCognition DisordersParaquatGenome-Wide Association StudyNeurologic ExaminationAdrenergic AgentsPemolineSelenoprotein WBasal Ganglia3,4-Dihydroxyphenylacetic AcidReality TherapyNerve Tissue ProteinsSweat Gland DiseasesChromogranin BPolymorphism, Single NucleotideAccidental FallsOxidative StressStereotaxic TechniquesMotor SkillsParkinson Disease, PostencephaliticPenetranceDreamsIntroversion (Psychology)