Alpha Smooth Muscle Actin (α-SMA); E-cadherin (CDH1); Crohn’s disease (CD); N-cadherin (CDH2); Epithelial growth factor (EGF); Fibroblast activation protein (FAP); Fibroblast growth factors (FGF); Fibronectin (FN); Matrix metalloproteinase (MMP); Transforming growth factor β (TGFβ); Tumour necrosis factor (TNF); Tumour necrosis factor receptor (TNFR); Zinc-finger E-box-binding (ZEB). This evidence concerns the gene TNFRSF1A and Crohn disease.