Arthritis, PsoriaticArthritisArthritis, RheumatoidArthritis, ExperimentalArthritis, InfectiousPsoriasisArthritis, JuvenileSynovial MembraneJointsArthritis, ReactiveSynovial FluidSynovitisSpondylitis, AnkylosingAntirheumatic AgentsOsteoarthritisRheumatoid FactorSpondylarthropathiesSeverity of Illness IndexRheumatic DiseasesTumor Necrosis Factor-alphaMice, Inbred DBAFinger JointArthritis, GoutyMethotrexateFoot JointsInjections, Intra-ArticularCollagen Type IISpondylarthritisNail DiseasesHand JointsReceptors, Tumor Necrosis FactorImmunoglobulin GAntibodies, MonoclonalRheumatologyBlood SedimentationKnee JointAutoantibodiesArthrographySpondylitisToe JointTreatment OutcomeTenosynovitisHLA-B27 AntigenRats, Inbred LewDisease Models, AnimalJoint DiseasesInflammationDermatologic AgentsPeriostitisAutoimmune DiseasesMetacarpophalangeal JointGenetic Predisposition to DiseaseAnti-Inflammatory AgentsCartilage, ArticularGlucose-6-Phosphate IsomeraseOsteoclastsGoutAntibodies, Monoclonal, HumanizedBiological MarkersHLA-C AntigensCytokinesSacroiliac JointPeptides, CyclicBone ResorptionWrist JointEnzyme-Linked Immunosorbent AssayCase-Control StudiesMice, Inbred C57BLCollagenMice, KnockoutAnti-Inflammatory Agents, Non-SteroidalT-LymphocytesDisability EvaluationCohort StudiesIritisMice, TransgenicEdemaInterleukin-1betaChronic DiseaseDouble-Blind MethodStatistics, NonparametricArthralgiaCells, CulturedTime FactorsInterleukin-17Follow-Up StudiesHindlimbRANK LigandHLA-DR AntigensGlucocorticoidsAutoantigensInterleukin-1Prospective StudiesDrug Therapy, CombinationQuestionnairesFreund's AdjuvantHealth StatusImmunosuppressive AgentsBiological ProductsInterleukin-6