GlomerulonephritisBiopsyGlomerulonephritis, MembranoproliferativeKidneyKidney GlomerulusGlomerulonephritis, MembranousGlomerulonephritis, IGAKidney DiseasesProteinuriaLupus NephritisBiopsy, NeedleKidney TransplantationNephrotic SyndromeGlomerulosclerosis, Focal SegmentalImmune Complex DiseasesAnti-Glomerular Basement Membrane DiseaseKidney TubulesHematuriaNephritis, InterstitialNephrosis, LipoidGlomerular MesangiumKidney Failure, ChronicAcute Kidney InjuryBasement MembraneAIDS-Associated NephropathyKidney Function TestsAntibodies, Antineutrophil CytoplasmicCreatininePodocytesHospitals, SatelliteGlomerular Filtration RateDiabetic NephropathiesAntigen-Antibody ComplexComplement C3ImmunohistochemistrySuburban Health ServicesImmunosuppressive AgentsRetrospective StudiesFluorescent Antibody TechniquePulse Therapy, DrugNephritisGraft RejectionKidney CortexMicroscopy, ElectronImmunoglobulin GVasculitisAutoantibodiesDisease ProgressionAlbuminuriaGlomerular Basement MembraneBiological MarkersAmyloidosisPredictive Value of TestsRenal InsufficiencySerum SicknessTime FactorsComplement C3 Nephritic FactorRNA, MessengerFibrosisMesangial CellsDisease Models, AnimalComplement System ProteinsCryoglobulinemiaLupus Erythematosus, SystemicAntibodies, AntinuclearMice, Inbred MRL lprGraft SurvivalAntigens, Thy-1Autoimmune DiseasesCryoglobulinsStreptococcal InfectionsPrognosisFollow-Up StudiesTissue DonorsRats, Inbred WKYTreatment OutcomeKidney Tubules, ProximalMice, Inbred NZBLupus VulgarisWegener GranulomatosisKidney NeoplasmsPurpura, Schoenlein-HenochPolycystic Kidney DiseasesIsoantibodiesAntibodiesBlood Urea NitrogenCollagen Type IVMice, Inbred C57BLImmunoglobulin AKidney MedullaImage-Guided BiopsySeverity of Illness IndexPeroxidasePrednisoloneKidney CalculiPlasmapheresisTrimeresurusMacrophagesChronic DiseaseRisk Factors