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The histological analysis of cartilage tissue damage through Safranin-O staining in MIA-induced OA rats. (A) Normal, (B) Control, (C) PDREP 100 mg/kg, (D) PDREP 300 mg/kg, (E) PDREP 500 mg/kg, (F) MSM 300 mg/kg. Histological analysis results image magnification = 1× and 2×, and scale bar = 1000 µm and 500 μm, respectively. Square: High magnification (2×). T: Tibia, F: Femur.
