Figure 1: The expression of serum CTRP3 and CTRP9 in the RA group and the healthy group. (a) The expression of serum CTRP3; (b) The expression of serum CTRP9. CTRP: The complement C1q tumor necrosis factor-related protein. *P < 0.05; **P < 0.01. CTRP3: Complement component 1q tumor necrosis factor-related protein 3, CTRP9: Complement component 1q tumor necrosis factor-related protein 9, RA: Rheumatoid arthritis