Galangin reduced IL-1β-induced hypertrophic conversion of chondrocytes. A, B. Collagen II and collagen X expression was detected by western blotting. C, D. Representative immunofluorescence image of collagen II with DAPI staining, and the fluorescence intensities were quantified by Image J (magnification: 100×, scale bar: 200 µm). All data are presented as mean ± SD. Significant differences among groups are indicated as ##P < 0.001 vs. control group; *P < 0.05, **P < 0.01, ***P < 0.001 vs. IL-1β alone treatment group, n = 3.