Alzheimer DiseaseDementiaDementia, VascularAmyloid beta-Peptidestau ProteinsNeurofibrillary TanglesBrainAmyloid beta-Protein PrecursorCognition DisordersPlaque, AmyloidApolipoprotein E4Neuropsychological TestsLewy Body DiseaseAtrophyMild Cognitive ImpairmentAmyloid Precursor Protein SecretasesPresenilin-1AmyloidDementia, Multi-InfarctNeurofibrilsApolipoproteins ECognitionMagnetic Resonance ImagingAgingMemory DisordersAge of OnsetCholinesterase InhibitorsMemantinePresenilin-2HippocampusPeptide FragmentsLongitudinal StudiesAIDS Dementia ComplexCaregiversLewy BodiesMental Status ScheduleAutopsyAniline CompoundsNeuronsPresenilinsCerebral CortexNational Institute on Aging (U.S.)Disease ProgressionAspartic Acid EndopeptidasesCerebral Amyloid AngiopathyMice, TransgenicPsychomotor AgitationNootropic AgentsNeurodegenerative DiseasesSubstantia InnominataParkinson DiseasePhenylcarbamatesTauopathiesTemporal LobeFrontotemporal Lobar DegenerationAmyloidogenic ProteinsPositron-Emission TomographyNerve DegenerationCohort StudiesIndansBrain ChemistryRisk FactorsProdromal SymptomsDisease Models, AnimalAmnesiaBiological MarkersGenetic Predisposition to DiseasePsychiatric Status Rating ScalesSeverity of Illness IndexDown SyndromeMemoryCase-Control StudiesProtease NexinsGenotypeThiazolesGeriatric AssessmentFrontal LobeClioquinolAge FactorsNerve Tissue ProteinsFrontotemporal DementiaBehavioral SymptomsAphasia, Primary ProgressiveTacrineGalantamineNursing HomesNeuropil ThreadsMutationFollow-Up StudiesReference ValuesInstitutionalizationApolipoprotein E3Activities of Daily LivingNerve Fibers, MyelinatedInsulysinReproducibility of ResultsCA2 Region, HippocampalPredictive Value of TestsImage Processing, Computer-AssistedApolipoprotein E2