Objective To investigate the expressions of nucleotide-binding oligomerization domain receptor-1(NOD-1)and fragile histidine triad(FHIT)in biopsy specimens of ulcerative colitis and their clinical significances.Methods The levels of NOD-1and FHIT were detected by immunohistochemical method in 30 specimens of acute-phase ulcerative colitis and their corresponding remission-phase biopsy specimens,20 specimens of Crohn's disease and 20 normal specimens to analyze their clinical significances.Results The positi...