Research Article

Rat Chondrocyte Inflammation and Osteoarthritis Are Ameliorated by Madecassoside

Figure 4

MA inhibits the IL-1β-induced activation of pp65/p65 and p-IκBα/IκBα in rat chondrocytes. Chondrocytes were treated with various concentrations of MA for 1 hour and subsequently stimulated with 10 ng/ml IL-1β for 30 min. (a) Western blot analysis and (b) and (c) quantitative analysis relevant to p-p65/p65 and p-IκBα/IκBα. ; data are expressed as the deviation. (d) The immunofluorescence microscopic analysis was used to detect the nuclear translocation of p65. Green, p65; Blue, DAPI. . vs. sham group. vs. IL-1β group. IκBα: NF-κB inhibitor α; IL: interleukin.