Free RadicalsAlzheimer DiseaseFree Radical ScavengersHydroxyl RadicalElectron Spin Resonance SpectroscopyAmyloid beta-PeptidesAntioxidantsPicratesLipid PeroxidationHydroxidesOxidation-ReductionAmyloid beta-Protein PrecursorSuperoxide DismutaseNitrogen OxidesOxidative Stresstau ProteinsBrainNeurofibrillary TanglesPlaque, AmyloidHydrogen PeroxideReactive Oxygen SpeciesSpin LabelsXanthine OxidaseSuperoxidesCyclic N-OxidesOxygenAscorbic AcidSpin TrappingLipid PeroxidesApolipoprotein E4CatalaseMalondialdehydeNeurofibrilsDementiaBiphenyl CompoundsPlant ExtractsAmyloid Precursor Protein SecretasesPresenilin-1AntipyrineCognition DisordersAmyloidProstatectomyGlutathioneDeferoxamineIronAtrophyVitamin EKineticsNeuropsychological TestsAgingDementia, VascularTioproninPeptide FragmentsOxidantsBenzothiazolesTime FactorsThiobarbituric Acid Reactive SubstancesNeuronsAmidinesApolipoproteins EXanthineRats, WistarHippocampusDisease Models, AnimalMild Cognitive ImpairmentPhenolsSulfonic AcidsCopperPeroxidesGlutathione PeroxidaseCells, CulturedNitric OxideRibonucleotide ReductasesAniline CompoundsPresenilin-2Molecular StructureMagnetic Resonance ImagingModels, ChemicalRats, Sprague-DawleyPulse RadiolysisMice, TransgenicAllopurinolCerebral CortexDose-Response Relationship, DrugBrain ChemistryChromatography, High Pressure LiquidMitochondriaCholinesterase InhibitorsCognitionHorseradish PeroxidaseCell SurvivalPeroxidasesNeurodegenerative DiseasesMental Status ScheduleNerve DegenerationAspartic Acid EndopeptidasesLewy Body Diseasetert-ButylhydroperoxideDNA DamageLuminescent Measurements