Nerve DegenerationBrain DiseasesOptic NerveWallerian DegenerationOptic Nerve DiseasesRetinal Ganglion CellsNerve RegenerationAxonsBrainDisease Models, AnimalRetinal DegenerationMacular DegenerationBrain Diseases, Metabolic, InbornMagnetic Resonance ImagingEncephalitisSciatic NerveMucopolysaccharidosis IPeripheral NervesNeuronsAlzheimer DiseaseLeukoencephalopathiesBrain Diseases, MetabolicBrain ChemistryBlood-Brain BarrierNerve FibersBrain InjuriesNeural Stem CellsAstrocytesBrain NeoplasmsIntervertebral Disc DegenerationAgingMice, Inbred C57BLRats, Sprague-DawleyMicrogliaBrain MappingSchizophreniaHippocampusImage Processing, Computer-AssistedNerve EndingsNerve CrushSural NerveImmunohistochemistryNerve BlockFacial NerveMedian NervePeripheral Nerve InjuriesTibial NerveUlnar NerveCells, CulturedFrontotemporal Lobar DegenerationNerve Growth FactorsWet Macular DegenerationMental DisordersSpinal NervesFemoral NerveBrain StemNerve Tissue ProteinsNerve Growth FactorBiological MarkersTrigeminal NerveRetinaPhotoreceptor Cells, VertebrateMagnetic Resonance SpectroscopySpinal Nerve RootsBrain EdemaCranial NervesPhrenic NerveIntervertebral DiscBrain IschemiaRadial NerveNerve Compression SyndromesNerve Fibers, MyelinatedNerve TissueElectroretinographyRetrograde DegenerationOphthalmic NerveOptic Nerve InjuriesCochlear NerveMandibular NerveNeural ConductionCerebral CortexChoroidal NeovascularizationGlossopharyngeal NerveSplanchnic NervesBrain AbscessSpinocerebellar DegenerationsRetinitis Pigmentosa