Research Article

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

Figure 4

The effect of limonin on IL-1β-activated NF-κB stimulation. (a–c) The western blot assay was used to evaluate the IκBα protein expression in the cytoplasm and p65 expression in the nucleus in chondrocytes. (d) The p65 in the nuclear was assayed through the cell immunofluorescence (scale bar: 10 μm). The results in the figures are represented as the . Significant differences among various groups are shown as , .
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