Relative expression of different genes of the mucosa and muscularis mucosa (= mucosa), and submucosa and muscularis externa (= submucosa) of Infliximab naïve patients compared to Infliximab failure patients.

IFX: Infliximab, 36B4: Acidic Ribosomal Protein 36B4; ED-A: Extra Domain A; PCOLN3: procollagen peptidase; ACTA2: alpha smooth muscle actin; TGFB1: transforming growth factor beta 1. *** p = <0.001. All gene expressions are normalized against 36B4 as housekeeping gene.