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Rheumatol Int. 2006 Oct;26(12):1096-100.

Interleukin-6 levels in synovial fluids of patients with rheumatoid arthritis correlated with the infiltration of inflammatory cells in synovial membrane.

Author information

1
Department of Orthopedic Surgery, School of Medicine, Nagasaki University, 1-7-1 Sakamoto, 852-8501 Nagasaki, Japan. tomoko-m@net.nagasaki-u.ac.jp

Abstract

To compare the histological appearance of synovial membrane and interleukin (IL)-6 levels in synovial fluids of patients with rheumatoid arthritis (RA). Synovial tissue and synovial fluids were obtained from 51 knee joints with RA undergoing synovectomy or joint replacements. A histological inflammation score was determined based on the hyperplasia of the synovial lining and infiltration of inflammatory cells. The concentrations of IL-6 in synovial fluids were measured by ELISA. The association between IL-6 levels and histological findings was evaluated. We found a positive correlation between the infiltration of inflammation cells in synovial tissues and the concentration of IL-6 in synovial fluids. The IL-6 level in synovial fluid partially reflects histological synovial inflammation.

PMID:
16738904
DOI:
10.1007/s00296-006-0143-2
[Indexed for MEDLINE]

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