However, after moxibustion treatment, the expression of mPD-1 (8.00 ± 2.17) (Figures 3(c) and 3(g)) and mPD-L1 (9.60 ± 2.59) (Figures 3(f) and 3(h)) upregulated in the Mox group compared with the RA group. This evidence concerns the gene MOXD1 and rheumatoid arthritis.