AtrophyMuscular AtrophyOptic AtrophyMuscular Atrophy, SpinalMultiple System AtrophySpinal Muscular Atrophies of ChildhoodOlivopontocerebellar AtrophiesGyrate AtrophyGeographic AtrophyMagnetic Resonance ImagingSurvival of Motor Neuron 1 ProteinMuscular Disorders, AtrophicOptic Atrophy, Autosomal DominantSMN Complex ProteinsBrainSurvival of Motor Neuron 2 ProteinHindlimb SuspensionMuscle, SkeletalBulbo-Spinal Atrophy, X-LinkedGastritis, AtrophicTime FactorsSKP Cullin F-Box Protein LigasesCerebellar AtaxiaOptic Atrophies, HereditaryAlzheimer DiseaseOrgan SizeDisease ProgressionDisease Models, AnimalUveal DiseasesSupranuclear Palsy, ProgressiveMuscle ProteinsCognition DisordersFacial HemiatrophyPedigreeSpinocerebellar DegenerationsOrnithine-Oxo-Acid TransaminaseMuscle Fibers, SkeletalMuscle DenervationShy-Drager SyndromeTemporal LobeMotor NeuronsDementiaBrain DiseasesLabor OnsetImage Processing, Computer-AssistedNerve Tissue ProteinsNeuronal Apoptosis-Inhibitory ProteinHippocampusImmobilizationSeverity of Illness IndexMyoclonic Epilepsies, ProgressiveMutationMice, TransgenicPepsinogen ACerebral CortexFundus OculiCerebellar DiseasesAgingMacular DegenerationNerve DegenerationBiopsyFollow-Up StudiesMice, Inbred C57BLMuscle WeaknessMyostatinNeurodegenerative DiseasesFluorescein AngiographyCase-Control StudiesAnterior Horn CellsCerebellumCeliac DiseaseSyndromeRetrospective StudiesCyclic AMP Response Element-Binding ProteinAge FactorsFrontotemporal DementiaMotor Neuron DiseaseSpinal CordElectromyographyParkinson DiseasePepsinogen CProspective StudiesChoroidEpilepsy, Temporal LobeLongitudinal StudiesAnalysis of VarianceMuscular DiseasesNeuromuscular DiseasesCerebral VentriclesMild Cognitive ImpairmentRisk FactorsRNA-Binding ProteinsRats, Sprague-DawleyTomography, X-Ray ComputedFrontotemporal Lobar DegenerationNeuroimagingWolfram SyndromeGastric MucosaHelicobacter pyloriRNA, Messenger