Effects of Wutou Decoction on DNA Methylation and Histone Modifications in Rats with Collagen-Induced Arthritis

Figure 2

The hematoxylin and eosin staining of synovium corresponding to arthritis index score. (a), (b), (c), (d), and (e) represent the arthritis index scores 0, 1, 2, 3, and 4, respectively. (f) The process of isolating knee synovium.

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(f)