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. 2022 Jun 16;15:3547–3560. doi: 10.2147/JIR.S365545

Figure 4.

Figure 4

Histone deacetylase 4 (HDAC4) deletion induced diverse changes in osteoarthritis (OA)-related genes in mice. (AC) HDAC4 knockout led to significant differences in the relative mRNA expression of OA-related genes between the AggH-Tam and AggH-Oil groups in 8-month-old. Data are shown as the mean ± SD. The results were normalized to 18S mRNA. *P < 0.05, **p < 0.01, ***p < 0.001. (D) Matrix metalloprotease 13 (MMP-13), type II collagen, aggrecan, Runt-related transcription factor 2 (Runx2), SRY-box transcription factor 9 (Sox9), type X collagen, Indian hedgehog (Ihh), and parathyroid hormone-related protein (PTHrP) immunochemical staining of the different groups. And the relative locations were indicated by the red frame in the bottom right corner of each picture. Scale bars: 50 μm.