Alzheimer DiseaseAge of OnsetAmyloid beta-Peptidestau ProteinsApolipoprotein E4Amyloid beta-Protein PrecursorBrainNeurofibrillary TanglesPlaque, AmyloidCognition DisordersDementiaAtrophyAge FactorsNeuropsychological TestsAmyloid Precursor Protein SecretasesGenetic Predisposition to DiseasePresenilin-1Huntington DiseaseApolipoproteins EGenotypeAmyloidPedigreeDementia, VascularMagnetic Resonance ImagingRisk FactorsNeurofibrilsDisease ProgressionMild Cognitive ImpairmentFamily HealthCohort StudiesProdromal SymptomsAllelesAgingMutationLongitudinal StudiesRetrospective StudiesTrinucleotide RepeatsParkinson DiseasePresenilin-2Severity of Illness IndexPeptide FragmentsTime FactorsCognitionFollow-Up StudiesCase-Control StudiesHippocampusMental Status ScheduleGenetic LinkageSex FactorsFrontotemporal DementiaPhenotypeLewy Body DiseaseGene FrequencyMemantinePresenilinsCerebral CortexLod ScoreGenetic TestingNeuronsAnticipation, GeneticAspartic Acid EndopeptidasesPolymorphism, Single NucleotideMice, TransgenicPsychiatric Status Rating ScalesAniline CompoundsCholinesterase InhibitorsFamilySpinocerebellar DegenerationsDNA Repeat ExpansionNational Institute on Aging (U.S.)Memory DisordersGenetic HeterogeneitySubstantia InnominataDNA Mutational AnalysisNerve Tissue ProteinsHeterozygoteAutopsyBiological MarkersCerebral Amyloid AngiopathyDisease Models, AnimalPolymorphism, GeneticProspective StudiesSchizophrenia, CatatonicPenetrancePrecipitating FactorsIncidenceAmyloidogenic ProteinsCognitive ReservePaternal AgeGenetic Association StudiesBrain ChemistryPsychotic DisordersNerve DegenerationPositron-Emission TomographyDiabetes Mellitus, Type 1Cerebellar AtaxiaProtease NexinsGenes, DominantNeurodegenerative DiseasesPhenylcarbamates