Expression levels of fibrotic genes and inflammatory cytokines in biopsies from patients with active CD and active UC. Data were derived from Gene Expression Omnibus (GEO) datasets GSE57945 (n = 42 controls and n = 162 with CD) and GSE59071 (n = 11 controls and n = 74 with UC). Expression of ACTA2, COL1A1, COL1A2, and COL3A1 in (A) the ileum of non-IBD and active CD patients (GSE57945) and (B) the colon of non-IBD, active CD, and active UC patients (GSE59071). (C) Expression of CSF2 and CSF3 in the ileum of CD patients compared with non-IBD ileum controls and in the colon of UC and CD patients compared with non-IBD colon controls. (D and E) Expression of COL1A1, COL1A2, and COL3A1in biopsies from CD and UC patients with high and low expression profiles for NR1I2 compared with non-IBD control patients. (E) CSF2 and CSF3 mRNA expression against NR1I2 expression in pooled IBD cohorts (n = 155, all samples across both GSE57945 and GSE59071 datasets. Student t test (A and C) and one-way analysis of variance with Tukey multiple-comparison test (B and C). ∗P < .05, ∗∗P < .01, ∗∗∗P < .005.