For FDEGs, the results showed that TNFAIP3 was significantly correlated with aminoacyl-tRNA biosynthesis, DNA replication, Fanconi anemia pathway, graft-versus-host disease, IL-17 signaling pathway, mismatch repair, nitrogen metabolism, non-homologous end-joining, rheumatoid arthritis, type I diabetes mellitus. Here, TNFAIP3 is linked to rheumatoid arthritis.