The results of IHC indicated that the expression of HSF2 in the intestinal mucosa of UC patients was significantly higher than that in other six groups (Figure 3), (p<0.01, for normal controls, Crohn's disease, Behcet's disease), (p<0.05 for intestinal tuberculosis, infective enteritis and intestinal lymphoma). The gene discussed is HSF2; the disease is Behcet disease.