Arthritis, RheumatoidArthritisArthritis, ExperimentalArthritis, InfectiousArthritis, JuvenileFoundationsArthritis, PsoriaticArthritis, ReactiveSynovial MembraneJointsSynovial FluidArthritis, GoutyRheumatoid FactorMice, Inbred DBASynovitisOsteoarthritisCollagen Type IISeverity of Illness IndexMethotrexateRats, Inbred LewAutoantibodiesBlood SedimentationInjections, Intra-ArticularTumor Necrosis Factor-alphaRheumatic DiseasesImmunoglobulin GArthrographyRheumatologyKnee JointMetacarpophalangeal JointSpondylitis, AnkylosingSulfasalazinePeptides, CyclicAntibodies, MonoclonalTreatment OutcomeAutoimmune DiseasesDisease Models, AnimalGold Sodium ThiomalateWrist JointCollagenRheumatoid NoduleHLA-DRB1 ChainsFinger JointTarsal JointsLyme DiseaseReceptors, Tumor Necrosis FactorHLA-DR4 AntigenAnti-Inflammatory AgentsJoint DiseasesHLA-DR AntigensCytokinesCitrullineSpondylarthropathiesFoot JointsPsoriasisCartilage, ArticularInflammationAnkle JointT-LymphocytesBiological MarkersTime FactorsEnzyme-Linked Immunosorbent AssayFund RaisingInterleukin-17EdemaCells, CulturedFreund's AdjuvantTarsus, AnimalDrug Therapy, CombinationChronic DiseaseTenosynovitisPainHLA-B27 AntigenDisability EvaluationOrganogold CompoundsHand JointsGenetic Predisposition to DiseaseGlucose-6-Phosphate IsomeraseLupus Erythematosus, SystemicInterleukin-6Mice, Inbred C57BLInterleukin-1Case-Control StudiesInterleukin 1 Receptor Antagonist ProteinCartilageAutoantigensNational Institute of Arthritis and Musculoskeletal and Skin Diseases (U.S.)Follow-Up StudiesIsoxazolesPrednisoloneUnited StatesPenicillamineBorrelia burgdorferiImmunoglobulin MPain MeasurementHindlimbFibroblastsYersinia InfectionsArthralgiaSpondylarthritis