Arthritis, RheumatoidAutoimmune DiseasesArthritisArthritis, ExperimentalArthritis, InfectiousSynovial MembraneAntirheumatic AgentsArthritis, JuvenileRheumatoid FactorSynovial FluidArthritis, PsoriaticAutoantibodiesJointsInflammationArthritis, ReactiveLupus Erythematosus, SystemicDisease Models, AnimalSynovitisAutoimmunityOsteoarthritisMice, Inbred C57BLMethotrexateCells, CulturedAutoantigensRheumatic DiseasesPhenotypeNeoplasmsImmunoglobulin GSeverity of Illness IndexBlood SedimentationSignal TransductionIndiaTumor Necrosis Factor-alphaMice, Inbred DBASulfasalazineModels, BiologicalRheumatoid NoduleMetacarpophalangeal JointHLA-DRB1 ChainsAntibodies, MonoclonalSjogren's SyndromeGold Sodium ThiomalateT-LymphocytesArthrographyAntibodies, AntinuclearPeptides, CyclicRheumatologyHLA-DR AntigensWrist JointHLA-DR4 AntigenCollagen Type IIGenetic Predisposition to DiseaseCytokinesMutationFinger JointReceptors, Tumor Necrosis FactorTreatment OutcomeRats, Inbred LewCitrullineSpondylitis, AnkylosingLymphocyte ActivationB-LymphocytesInterleukin-17Protein Tyrosine Phosphatase, Non-Receptor Type 22Encephalomyelitis, Autoimmune, ExperimentalEnzyme-Linked Immunosorbent AssayCase-Control StudiesBiological MarkersAnti-Inflammatory AgentsArthritis, GoutyOrganogold CompoundsFoot JointsDrug Therapy, CombinationHydroxychloroquineIsoxazolesImmunosuppressive AgentsPenicillamineCD4-Positive T-LymphocytesT-Lymphocytes, RegulatoryImmunoglobulin MAntigen-Antibody ComplexTh17 CellsPrednisoloneKnee JointMice, Inbred MRL lprImmune ToleranceAutoimmune Diseases of the Nervous SystemInjections, Intra-ArticularDiabetes Mellitus, Type 1Flow CytometryInterleukin-6Multiple SclerosisScleroderma, SystemicGlucocorticoidsEpitopesImmunologic FactorsDisability EvaluationHand JointsAllelesFibroblasts