“…8,9 Several predisposing factors which involving in IBD including genetic, gut dysbiosis, smoking, nutrition and diet, environmental pollution, and psychological stress. [8][9][10][11][12][13][14][15][16][17][18][19][20] Several genes have been discovered to be associated with IBD, such as NOD2, CARD9, CARD15, ATG16L1, IRGM, IL-23R, IL-12B, STAT3, MUC2, IL-10R, IL-10, XIAP, etc. Genes polymorphism which contributes to IBD are very significant of each other, but they are commonly related to inflammatory pathways of the disease.…”