Alzheimer DiseaseAmyloid beta-PeptidesAge of Onsettau ProteinsAmyloid beta-Protein PrecursorBrainNeurofibrillary TanglesApolipoprotein E4Plaque, AmyloidAtrophyDementiaCognition DisordersAmyloid Precursor Protein SecretasesPresenilin-1Neuropsychological TestsApolipoproteins EAmyloidDementia, VascularNeurofibrilsMild Cognitive ImpairmentMagnetic Resonance ImagingAgingNational Institute on Aging (U.S.)Presenilin-2HippocampusPeptide FragmentsGenetic Predisposition to DiseaseMental Status ScheduleMice, TransgenicGenotypeNeuronsCognitionLewy Body DiseasePedigreeMemantinePresenilinsMutationDisease ProgressionAspartic Acid EndopeptidasesLongitudinal StudiesAniline CompoundsNerve DegenerationTime FactorsCholinesterase InhibitorsAge FactorsDisease Models, AnimalAllelesMemory DisordersSubstantia InnominataCerebral CortexRisk FactorsCase-Control StudiesCerebral Amyloid AngiopathyAutopsyCohort StudiesAmyloidogenic ProteinsCerebellar AtaxiaBiological MarkersBrain ChemistryNerve Tissue ProteinsGenetic TestingProdromal SymptomsPositron-Emission TomographySeverity of Illness IndexProtease NexinsPhenylcarbamatesParkinson DiseaseTauopathiesNeurodegenerative DiseasesHuntington DiseasePhenotypeHeterozygoteNootropic AgentsIndansDown SyndromeGene FrequencyLewy BodiesClioquinolThiazolesFrontotemporal DementiaAmnesiaMolecular Sequence DataTemporal LobeOrnithine Carbamoyltransferase Deficiency DiseasePolymorphism, Single NucleotideHeterozygote DetectionFamily HealthPsychomotor AgitationFollow-Up StudiesNeuropil ThreadsRetrospective StudiesOsteochondrosisApolipoprotein E3InsulysinMemoryGenetic LinkageTacrineDNA Mutational AnalysisHomozygoteReference Values