DuodenoscopyCrohn DiseaseAlzheimer DiseaseBrain ChemistryAmyloid beta-PeptidesBrainBrain InjuriesBrain NeoplasmsBrain MappingAmyloid beta-Protein Precursortau ProteinsNeurofibrillary TanglesPlaque, AmyloidMagnetic Resonance ImagingApolipoprotein E4NeuronsBrain EdemaBrain StemCognition DisordersAtrophyBrain IschemiaNeurofibrilsDementiaCerebral CortexNeuropsychological TestsAmyloid Precursor Protein SecretasesPresenilin-1AmyloidHippocampusAgingBrain AbscessCognitionPeptide FragmentsDementia, VascularDisease Models, AnimalBlood-Brain BarrierMice, TransgenicNerve Tissue ProteinsMild Cognitive ImpairmentApolipoproteins EImage Processing, Computer-AssistedHypoxia, BrainTime FactorsPresenilin-2Brain InfarctionRats, Sprague-DawleyCholinesterase InhibitorsNerve DegenerationAspartic Acid EndopeptidasesLewy Body DiseaseAutopsyMemory DisordersMental Status ScheduleAstrocytesImmunohistochemistryMolecular Sequence DataNeurodegenerative DiseasesBrain Damage, ChronicAge of OnsetCerebrovascular CirculationAniline CompoundsMemantineFrontal LobeMice, Inbred C57BLAmino Acid SequencePresenilinsCerebral Amyloid AngiopathyMemoryTemporal LobeLongitudinal StudiesDisease ProgressionBiological MarkersAnalysis of VarianceTissue DistributionDeep Brain StimulationCase-Control StudiesCerebral VentriclesProtease NexinsCerebellumSubstantia InnominataParkinson DiseaseReference ValuesRNA, MessengerNational Institute on Aging (U.S.)Vital SignsEncephalitisNeuroprotective AgentsDown SyndromeRats, WistarCells, CulturedBehavior, AnimalAmyloidogenic ProteinsMutationPostmortem ChangesReproducibility of ResultsIndansMaze LearningPhenylcarbamatesNootropic AgentsAnimals, Newborn