Arthritis, RheumatoidArthritisArthritis, ExperimentalArthritis, InfectiousArthritis, JuvenileArthritis, PsoriaticArthritis, ReactiveExanthemaSynovial MembraneJointsSynovial FluidArthritis, GoutyRheumatoid FactorDrug EruptionsDiaper RashMice, Inbred DBASynovitisOsteoarthritisCollagen Type IISeverity of Illness IndexMethotrexateAutoantibodiesRats, Inbred LewBlood SedimentationImmunoglobulin GInjections, Intra-ArticularTreatment OutcomeTumor Necrosis Factor-alphaRheumatic DiseasesGold Sodium ThiomalateAntibodies, MonoclonalArthrographySulfasalazineRheumatologyKnee JointAcneiform EruptionsMetacarpophalangeal JointAutoimmune DiseasesSpondylitis, AnkylosingPeptides, CyclicDisease Models, AnimalLyme DiseaseWrist JointAnti-Inflammatory AgentsRheumatoid NoduleCollagenHLA-DRB1 ChainsFinger JointTarsal JointsJoint DiseasesReceptors, Tumor Necrosis FactorDrug Therapy, CombinationHLA-DR4 AntigenPsoriasisLupus Erythematosus, SystemicPurpuraHLA-DR AntigensCytokinesImmunoglobulin MCitrullineAntibodies, Monoclonal, HumanizedEdemaSkin DiseasesSpondylarthropathiesFoot JointsInflammationCartilage, ArticularEnzyme-Linked Immunosorbent AssayT-LymphocytesErythemaTime FactorsAnkle JointBiological MarkersPainInterleukin-17Erythema InfectiosumFreund's AdjuvantTarsus, AnimalTenosynovitisInterleukin 1 Receptor Antagonist ProteinHLA-B27 AntigenPrednisoloneChronic DiseaseOrganogold CompoundsAlphavirus InfectionsHand JointsGlucose-6-Phosphate IsomeraseGenetic Predisposition to DiseaseFollow-Up StudiesHerpes ZosterDisability EvaluationCells, CulturedInterleukin-6Double-Blind MethodArthralgiaIsoxazolesAntibodies, AntinuclearInterleukin-1Mice, Inbred C57BLCase-Control Studies