Figure 3.
The effects of SSA treatment on mRNA levels of pro-inflammatory cytokines and IL-23 receptor (IL-23R). (A) SSA treatment suppressed the expression of TNFα, IL-17A, IL-17F, and IFNγ mRNA (p < 0.05 by Wilcoxon signed rank test); (B) SSA treatment had no effect on the levels of IL-23 and IL-23R mRNA. Real-time RT-PCR values for each inflammatory cytokine were normalized to those of 18S rRNA (p > 0.05 by Wilcoxon signed rank test). Data were obtained from six AS patients before SSA medication, after SSA medication for two months, and after SSA medication for four months, respectively.