ZHU Daihua, et al. A DNBS-induced model of ulcerative colitis in rats[J]. Journal of Chongqing Medical University, 2004,(4):486-487. DOI: 10.13406/j.cnki.cyxb.2004.04.024.
Objective:To build the model of ulcerative colitis(UC) induced by 2
4-dinitrobenzenesulfonic acid (DNBS).Methods:The experimental UC was induced in Wistar rats by enema with 0.25ml of 18% DNBS dissolved in ethanol.Results:DNBS caused severe diarrhea with colorectal bleeding for 2~3 days and mucous diarrhea for 21 days.The pathologic changes of the colon included hyperemia
edema
ulcerations localized in colonic mucosa
depletion of goblet cells and formation of crypt abscess.Conclusion:The DNBS-induced model of UC in rats is similar to human UC