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. 2019 Sep 21;9(24):7108–7121. doi: 10.7150/thno.38182

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4-aminobiphenyl (4-ABP) promotes cartilage repair in the destabilization of medial meniscus (DMM) surgery-induced osteoarthritis mouse model. (A) Treatment schedule. (B) Mouse knee joints were stained with safranin-O/fast green (b1), type II collagen (b2), type X collagen (b3) and CD44/CD105 (b4). Nuclei were counterstained with DAPI where indicated. (C-F) Statistical analysis of the data shown in (B). Scale bars = 100 μm. **p < 0.01, ***p < 0.001 versus vehicle; ^#p < 0.05, ^##p < 0.01, ^###p < 0.001 versus model. n = 6 per group.