Ulcerative colitis (UC), characterized by inflammation, oxidative stress, and increased intestinal epithelial cell apoptosis, is an immunologically mediated chronic intestinal disorder. The present study was aimed at investigating the protective effects of alpha-lipoic acid (ALA) against trinitrobenzene sulfonic acid (TNBS)-induced UC and the underlying mechanism. ALA of 80 mg/kg bw/day was adm...