Cartilage degradation and defection of autophagy were validated in osteoarthritis samples. (A) Representative images hematoxylin and eosin (HE) staining; (B) Representative images of immunohistochemistry; (C) Quantitative optical density analysis of immunohistochemistry for samples; (D) mRNA and (E) protein expression of cartilage related proteins (MMP3, MMP13, and ADAMTS5) and autophagy related proteins Beclin1 and LC3. Data represent the mean ± SD (n=6), ** p < 0.01 and *** p < 0.001 vs. control samples.