期刊
JOURNAL OF ORTHOPAEDIC RESEARCH
卷 31, 期 2, 页码 315-321出版社
WILEY
DOI: 10.1002/jor.22208
关键词
cytokines; ACL tear; osteoarthritis; knee; synovial
类别
资金
- Fondo di Ateneo per la Ricerca of the University of Milano-Bicocca (FAR)
Surgical reconstruction of the anterior cruciate ligament (ACL) does not necessarily decrease the risk of developing osteoarthritis (OA). The inflammatory response and relative changes in pro- and anti-inflammatory cytokines could participate in triggering the development of OA. To test this hypothesis we measured the concentrations of IL-1 beta, IL-1ra, IL-6, IL-8, IL-10, and TNF-alpha at different times after ACL rupture. The sample population consisted of 48 patients with ACL tear which were assigned to different groups according to the time elapsed from the injury: 22 acute (A), 7 early sub-acute (ESA), 11 late sub-acute (LSA), and 8 chronic (C). In group A, there were high levels of IL-1 beta, IL-6, and IL-8, whereas levels of IL-1ra and TNF-alpha were significantly lower than usually reported. IL-1 beta and IL-8 concentrations returned with time to normal levels in the ESA group. Interestingly, IL-1ra levels remained always significantly lower than normally reported levels, and TNF-alpha levels did not increase after trauma. Our data show increased level of pro-inflammatory cytokines (IL-6 and IL-8) in the acute phase of inflammation which could be responsible for triggering cartilage catabolism and suggest that prompt neutralization of IL-6 and IL-8 accumulations in synovial fluid could help prevent development of OA in ACL-injured knees. (C) 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 31:315-321, 2013
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