As to KEGG pathways analysis, the most significant pathways of the common targets were “IL-17 signaling pathway,” “TNF signaling pathway,” “AGE−RAGE signaling pathway in diabetic complications,” and “rheumatoid arthritis” (Figure 4B), and the interaction network also demonstrated that the ten hub genes participated in these significant pathways (Figure 4C). This evidence concerns the gene TNF and rheumatoid arthritis.