ATPase staining showed a reduction in type II fiber area in e-RA when compared with healthy groups (6636 ± 265.4 μm2 e-RA vs. 10,964 ± 592.6 μm2 healthy, p < 0.001), which was significantly increased by TOFA (8564 ± 650.8 μm2 e-RA+TOFA vs. 6636 ± 265.4 μm2 e-RA, p < 0.05) (Figure 2F). Here, DNAH8 is linked to rheumatoid arthritis.