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Resveratrol affects the proliferation and matrix degradation in chondrocytes. a Cell viabilities were evaluated by the CCK-8 assay in chondrocytes treated with resveratrol (RSV). b RSV depresses the production of nitrite and PGE-2 induced by IL-1β. c Mean relative mRNA levels of MMP-13, MMP-9, MMP-3, and MMP-1 in various groups. d Western blot assay was applied to assess the expression levels of PEG, COX-2, i-NOS, MMP-13, MMP-3, and MMP-1
