Arthritis, RheumatoidSynovial MembraneArthritisCytokinesArthritis, ExperimentalSynovial FluidOsteoarthritisArthritis, InfectiousSynovitisAntirheumatic AgentsArthritis, ReactiveArthritis, JuvenileJointsArthritis, PsoriaticRheumatoid FactorTumor Necrosis Factor-alphaMethotrexateKnee JointSeverity of Illness IndexCells, CulturedBlood SedimentationAutoantibodiesMetacarpophalangeal JointInterleukin-1FibroblastsMice, Inbred DBAInterleukin-6Injections, Intra-ArticularPeptides, CyclicCitrullineSulfasalazineAntibodies, MonoclonalImmunoglobulin GRheumatoid NoduleGold Sodium ThiomalateSpondylarthropathiesBiological MarkersArthrographyCollagen Type IIInflammationEnzyme-Linked Immunosorbent AssayRheumatologyRNA, MessengerMacrophagesRheumatic DiseasesHLA-DR AntigensHLA-DRB1 ChainsImmunohistochemistryReceptors, Tumor Necrosis FactorWrist JointMatrix Metalloproteinase 3Autoimmune DiseasesInterleukin-1betaSpondylitis, AnkylosingJoint DiseasesT-LymphocytesAnti-Inflammatory AgentsInflammation MediatorsTreatment OutcomeFinger JointRats, Inbred LewCartilage, ArticularHLA-DR4 AntigenInterleukin-17Reverse Transcriptase Polymerase Chain ReactionHemarthrosisInterferon-gammaIsoxazolesDisease Models, AnimalCase-Control StudiesArthritis, GoutyMonocytesOrganogold CompoundsFoot JointsCartilageGene ExpressionLupus Erythematosus, SystemicInterleukinsCollagenLeukocytes, MononuclearAnti-Inflammatory Agents, Non-SteroidalFlow CytometryDrug Therapy, CombinationInterleukin-10SpondylarthritisImmunoenzyme TechniquesB-LymphocytesInterleukin-8HydroxychloroquinePenicillamineMice, Inbred C57BLOsteoarthritis, KneeGlucocorticoidsAntigens, CDTime FactorsC-Reactive ProteinLymphocyte ActivationOsteoclastsChemokinesArthroscopy