In patients with ulcerative colitis, urinary GSA correlated with ELISA fMPOp (r = 0.45, P < .0001), ELISA fMPOa (r = 0.45, P < .0001), fCal (r = 0.61, P < .0001) and CRP (r = 0.29, P = .01) (Supplementary Figure S9). This evidence concerns the gene CRP and ulcerative colitis.