Clinical significance and prognostic value of tumor necrosis factor-α and dickkopf related protein-1 in ankylosing spondylitis

Figure 2 Difference in tumor necrosis factor-α expression in the two groups. A: Difference in tumor necrosis factor-αexpression between the control group and the research group before treatment; B: Difference in tumor necrosis factor-α expression before and after treatment in the research group. ^aP < 0.05. TNF-α: Tumor necrosis factor-α.