Inflammation research : official journal of the European Histamine Research Society ... [et al.]
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NF-kappaB expression in cartilage and synovium of rat knee after intra-articular injection of lipid A was investigated. ⋯ Intra-articular injection of lipid A induced NF-kappaB expression in cartilage and synovium. Cartilage degeneration started earlier than synovitis in this model. Quantitative analysis of NF-kappaB in cartilage might be useful to evaluate the extreme acute phase of cartilage degeneration.