Compared with the normal group, the expression of proteins IL-1β, IL-6, IL-10, IL-15, NF-κBp65, TNF-α, TRPC-6, TRPM-5, and VEGF (Figures 5–13) in synovial tissue of RA rats increased significantly (p < 0.01). The gene discussed is TRPM5; the disease is rheumatoid arthritis.