FiltrationGlomerular Filtration RateChromatography, GelMolecular WeightKidneyCreatinineChromatography, Ion ExchangeKidney Function TestsElectrophoresis, Polyacrylamide GelInulinKidney DiseasesGlomerular Filtration BarrierKidney GlomerulusRenal CirculationKineticsFiltering SurgeryAmino AcidsCystatin CHydrogen-Ion ConcentrationMicropore FiltersRenal Insufficiency, ChronicUltrafiltrationChromatographyChromatography, AffinityTechnetium Tc 99m PentetateAlbuminuriaSubstrate SpecificityMolecular Sequence DataAmino Acid SequenceIothalamic AcidIsoelectric FocusingProteinuriaPodocytesChromatography, DEAE-CelluloseKidney Failure, ChronicKidney TubulesIsoelectric PointNatriuresisNephronsBlood PressureTime FactorsMacromolecular SubstancesChromatography, High Pressure LiquidRabbitsDiuresisRenal InsufficiencyCattleUltracentrifugationRenal Plasma FlowCarbohydratesCapillary PermeabilityImmunodiffusionEscherichia coliDiabetic NephropathiesProtein BindingCystatinsTemperatureWater MicrobiologySodiumChemistryChemical PhenomenaSolubilityBiological MarkersAminohippuric AcidsEdetic AcidElectrophoresis, DiscRisk FactorsHot TemperatureRadioisotope RenographyMethodsRats, Inbred StrainsChemical PrecipitationIohexolDogsCentrifugation, Density GradientWater PurificationPuncturesNephrectomyAmmonium SulfatePeptide FragmentsChronic DiseaseLiverChromatography, AgaroseHemodynamicsBlood ProteinsCentrifugationProspective StudiesHydrostatic PressureTrypsinSodium ChlorideAcute Kidney InjuryChromium RadioisotopesBinding SitesFollow-Up StudiesGlycoproteinsEnzyme StabilityRetrospective StudiesProteinsKidney TransplantationRecombinant Proteins