Animal Use AlternativesDisease Models, AnimalModels, AnimalMice, TransgenicAnimals, Genetically ModifiedMice, Inbred C57BLTransgenesPlants, Genetically ModifiedRats, TransgenicMice, KnockoutPhenotypeHuntington DiseaseGene ExpressionGene Expression RegulationGreen Fluorescent ProteinsMolecular Sequence DataAlzheimer DiseaseNeurodegenerative DiseasesPromoter Regions, GeneticMutationBrainCells, CulturedTobaccoRNA, MessengerNeuronsBase SequenceMice, Inbred BALB CAmyloid beta-Protein PrecursorSignal TransductionImmunohistochemistryCell DifferentiationModels, GeneticOrgan SpecificityAmyloid beta-PeptidesNeuroprotective AgentsReverse Transcriptase Polymerase Chain Reaction1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine