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. 2020 Oct 28;14:4533–4546. doi: 10.2147/DDDT.S258973

Figure 4.

Figure 4

SAMC influenced the inflammatory cytokines expression and NF-κB activity in OA rat. (A) Pro-inflammatory cytokines, TNF-α, IL-1β, IL-6 have elevated in OA rats, while SAMC treatment down-regulated these cytokines in joint cavity fluid, n=8. (B) Q-PCR detection of TNF-α, IL-1β, IL-6 mRNA level, n=4. (C) In articular cartilage, the elevated level of COX-2 and iNOS were down-regulated by the treatment of SAMC, n=4. (D) The nuclear NF-κB p65 in articular cartilage protein increased in OA rats, accompanied with IκBα degradation increased in cytoplasmic protein, n=4. SAMC treatment reversed the NF-κB activation by preventing p65 translocated to nucleus exanimated by immunohistochemistry, n=4, Scale bar: 100 μm (E). *P<0.05, vs Sham; #P<0.05, vs OA. n=8.