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IFC/IHC staining of -catenin, SF staining, and IHC staining of Sox-9 and MMP-9 were performed. The arrows show the accumulation and nuclear translocation of -catenin in the control group, and less stained in the SrR group, the staining of -catenin in fibrous tissue, chondrocytes, and the frontier of chondrification, the staining of Sox-9 in newly formed cartilage tissue and chondrocytes, and the staining of MMP-9 in the inflammatory area
