Journal
SAUDI JOURNAL OF GASTROENTEROLOGY
Volume 22, Issue 1, Pages 3-17Publisher
WOLTERS KLUWER MEDKNOW PUBLICATIONS
DOI: 10.4103/1319-3767.173753
Keywords
Animal models; antioxidants; Crohns disease; lipid peroxidation; reactive oxygen species; ulcerative colitis
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Funding
- European Social Fund [POSDRU/187/1.5/S/155397]
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Inflammatory bowel disease (IBD), including Crohns disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disorder characterized by alternating phases of clinical relapse and remission. The etiology of IBD remains largely unknown, although a combination of patients immune response, genetics, microbiome, and environment plays an important role in disturbing intestinal homeostasis, leading to development and perpetuation of the inflammatory cascade in IBD. As chronic intestinal inflammation is associated with the formation of reactive oxygen and reactive nitrogen species (ROS and RNS), oxidative and nitrosative stress has been proposed as one of the major contributing factor in the IBD development. Substantial evidence suggests that IBD is associated with an imbalance between increased ROS and decreased antioxidant activity, which may explain, at least in part, many of the clinical pathophysiological features of both CD and UC patients. Hereby, we review the presently known oxidant and antioxidant mechanisms involved in IBD-specific events, the animal models used to determine these specific features, and also the antioxidant therapies proposed in IBD patients.
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