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Background Oxidative stress has been related to inflammation of the colonic mucosa in patients with diversion colitis (DC). Aim The purpose of this study was to evaluate the antioxidants effects of n-acetylcysteine (NAC) in colon segments without faecal stream. Methods Thirty-six Wistar rats were subjected to diversion of the faecal stream by proximal colostomy and a distal mucosal colon fistula...