1-Methyl-4-phenylpyridinium1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineMPTP PoisoningOrganic Cation Transport ProteinsOrganic Cation Transporter 1Pyridinium CompoundsVesicular Biogenic Amine Transport ProteinsRotenoneNeurotoxinsHerbicidesCatecholamine Plasma Membrane Transport ProteinsCholera ToxinDopamine AgentsEquilibrative Nucleoside Transport ProteinsDopamineT-2 ToxinParkinson Disease, SecondaryDopaminergic NeuronsVesicular Monoamine Transport ProteinsTetrabenazineMesencephalonMonoamine OxidaseTetanus ToxinDopamine Plasma Membrane Transport Proteins3,4-Dihydroxyphenylacetic AcidParkinson DiseaseMembrane Transport ProteinsParkinsonian DisordersCationsSubstantia NigraBotulinum Toxins, Type AMarine ToxinsNeuronsTyrosine 3-MonooxygenaseNeuroprotective AgentsBiological TransportPC12 CellsShiga ToxinsCorpus StriatumShiga Toxin 2Cell LineDose-Response Relationship, DrugCell DeathNerve DegenerationShiga Toxin 1MitochondriaCells, CulturedNG-Nitroarginine Methyl EsterCell SurvivalKineticsReactive Oxygen Species