Lysosomal Storage DiseasesLysosomal Storage Diseases, Nervous Systemalpha-MannosidosisGaucher DiseaseEnzyme Replacement TherapyFabry DiseaseCatsalpha-GalactosidaseMultiple Sulfatase Deficiency DiseaseLysosomesNiemann-Pick Disease, Type CFucosidosisLeukodystrophy, MetachromaticMucolipidosesMucopolysaccharidosis IIGlucosylceramidaseGlycogen Storage Disease Type IIMucopolysaccharidosis IIduronate SulfataseCerebroside-SulfataseLeukodystrophy, Globoid CellIduronidaseSphingolipidosesMucopolysaccharidosesMucopolysaccharidosis IIINeuronal Ceroid-LipofuscinosesGangliosidosis, GM1Mucopolysaccharidosis IVSandhoff Diseasealpha-GlucosidasesMucopolysaccharidosis VIAspartylglucosaminuriaMucopolysaccharidosis VIIN-Acetylgalactosamine-4-SulfataseImino SugarsNiemann-Pick Disease, Type Aalpha-N-AcetylgalactosaminidaseMetabolism, Inborn Errors1-DeoxynojirimycinNiemann-Pick DiseasesSulfatasesDried Blood Spot TestingCat DiseasesAspartylglucosylaminaseNiemann-Pick Disease, Type BGalactosylceramidaseSerine ProteasesCystinosisNeonatal ScreeningChondroitinsulfatasesTrihexosylceramidesSphingomyelin Phosphodiesterasebeta-N-AcetylhexosaminidasesLysosomal-Associated Membrane Protein 2Tay-Sachs DiseaseHydrops FetalisTransient Receptor Potential ChannelsGenetic TherapyDisease Models, AnimalLysosome-Associated Membrane GlycoproteinsThiolester Hydrolasesalpha-MannosidaseDipeptidyl-Peptidases and Tripeptidyl-PeptidasesMutationTRPM Cation ChannelsBlood Specimen CollectionBrainFibroblastsReceptor, IGF Type 2AutophagyPhenotypeGlycosaminoglycansBipolar DisorderGenetic VectorsDependovirusMice, KnockoutCarbohydrate Metabolism, Inborn ErrorsInfant, NewbornWolman DiseaseSialic Acid Storage DiseaseMutation, MissenseMolecular ChaperonesMental DisordersMolecular Sequence DataGlucuronidaseHexosaminidase BDrug StorageCells, CulturedCathepsin AAnxiety DisordersImino PyranosesMood DisordersTandem Mass SpectrometryLiverGangliosidoses, GM2HeterozygoteTransgenesRecombinant ProteinsMice, Inbred C57BLProteins