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. 1992 Sep-Oct;10(5):493-8.

Serum interleukin-6 levels and joint involvement in polyarticular and pauciarticular juvenile chronic arthritis

F De Benedetti  1 , P Robbioni, M Massa, S Viola, S Albani, A Martini
Affiliations
  • PMID: 1458703

Serum interleukin-6 levels and joint involvement in polyarticular and pauciarticular juvenile chronic arthritis

F De Benedetti et al. Clin Exp Rheumatol. 1992 Sep-Oct.

Abstract

We measured serum and synovial fluid interleukin 6 (IL-6) levels in patients with polyarticular-onset and pauciarticular-onset juvenile chronic arthritis (JCA), using the hybridoma cell line B9. During active disease, but not during remission, serum IL-6 levels were significantly elevated in patients with polyarticular (p < 0.0001 vs controls) and in patients with pauciarticular JCA (p < 0.01 vs controls). In patients with active polyarticular disease (polyarticular and extended pauciarticular) serum IL-6 levels correlated with the extent and severity of joint involvement (p < 0.05), with erythrocyte sedimentation rate values (p < 0.005) and with C reactive protein concentrations (p < 0.05). In patients with persistent pauciarticular JCA, serum IL-6 levels correlated with the joint swelling score (p < 0.05). Synovial fluid IL-6 levels, measured in 5 patients with pauciarticular JCA, were markedly elevated (range 600-24,000 HGF U/ml). In conclusion, our data suggest that IL-6 is an important pathogenic mediator in polyarticular and pauciarticular JCA.

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