Lupus NephritisNephritisLupus Erythematosus, SystemicAntibodies, AntinuclearMice, Inbred MRL lprMice, Inbred NZBGlomerulonephritisKidney GlomerulusProteinuriaKidneyAutoantibodiesImmunosuppressive AgentsMycophenolic AcidGlomerulonephritis, MembranoproliferativeBiopsyGlomerulonephritis, MembranousComplement C1qAntigen-Antibody ComplexAzathioprineImmunoglobulin GHeymann Nephritis Antigenic ComplexPrednisoloneCyclophosphamideComplement C3Immune Complex DiseasesBasement MembraneLupus Erythematosus, DiscoidMethylprednisoloneGlomerular Basement MembranePurpura, Schoenlein-HenochKidney TubulesCreatinineAutoantigensBiological MarkersMice, CongenicAutoimmune DiseasesGlomerulonephritis, IGASeverity of Illness IndexComplement C4DNAPulse Therapy, DrugNephritis, HereditaryDisease Models, AnimalAntibodies, AntiphospholipidKidney DiseasesDrug Therapy, CombinationHematuriaPlasmapheresisAutoimmunityDisease ProgressionGlomerular MesangiumKidney Failure, ChronicThrombotic MicroangiopathiesTripterygiumFluorescent Antibody TechniqueAntibodies, AnticardiolipinNephritis, InterstitialB-LymphocytesCryoglobulinsNephrotic SyndromeVasculitisComplement System ProteinsMice, Inbred StrainsMesangial CellsHypoalbuminemiaRetrospective StudiesHydroxychloroquineNephrosis, LipoidTreatment OutcomeEnzyme-Linked Immunosorbent AssayPrednisoneFluorescent Antibody Technique, DirectDiagnostic Techniques, Urological