FABP1 and rheumatoid arthritis: Besides, CRP levels were positively correlated with serum levels of Gal-9, FABP1, and FABP4 (Spearman r = 0.758, p < 0.001; r = 0.338, p < 0.05; r = 0.362, p < 0.05, respectively) in patients with RA.