Research Article

Limonin Inhibits IL-1β-Induced Inflammation and Catabolism in Chondrocytes and Ameliorates Osteoarthritis by Activating Nrf2

Figure 1

The effect of limonin on the survival of chondrocytes in vitro. (a) The chemical structure of limonin. (b, c) The toxic effect of limonin on chondrocytes at different concentrations (0, 15, 30, 60, and 120 μM) for 24 and 48 hrs. The viability of cells was assessed by CCK-8 assay. The results of three independent experiments are represented as . Significant differences are represented as , .
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