Gastrointestinal System Disease, also known as gastrointestinal disease, is related to stomach disease and intestinal disease, and has symptoms including peeling tongue, catarrh and blood in stool. An important gene associated with Gastrointestinal System Disease is MIR199A1 (MicroRNA 199a-1), and among its related pathways/superpathways are miRNAs involved in DNA damage response and Cell differentiation - expanded index. The drugs Rebamipide and Indomethacin have been mentioned in the context of this disorder. Affiliated tissues include small intestine and liver.