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Year : 2023  |  Volume : 14  |  Issue : 1  |  Page : 46

Exercise improves clinical symptoms, pathological changes and oxidative/antioxidative balance in animal model of colitis

1 Department of Physical Education and Sport Science, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
2 Department of Physiology, Mashhad University of Medical Sciences, Mashhad, Iran

Correspondence Address:
Ali Yaghoubi
Department of Physical Education and Sport Science, Bojnourd Branch, Islamic Azad University, Bojnourd
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijpvm.ijpvm_162_22

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Background: Ulcerative colitis is one of the major phenotypic forms of inflammatory bowel diseases. The present study aimed to investigate the effect of force swimming exercise on clinical symptoms (disease activity index; DAI), colon histopathology, inflammation and fibrosis, and oxidant/antioxidant balance in dextran sulfate sodium (DSS)-induced colitis mice. Methods: Male C57BL6 mice were randomly divided into five groups (n = 6 each): control, exercise, colitis, colitis + sulfasalazine, and colitis + exercise. Exercise was performed by forced swimming six weeks before and during the experiment. Colitis was induced by 1.5% DSS in drinking water. The animals were evaluated for body weight changes and DAI (including changes of body weight, stool consistency, rectal bleeding, and prolapse) during the induction of colitis and treatment. At the end of experiment, colons and spleens were evaluated by H and E and Masson Trichrome stainings. Oxidant (Malon dialdehyde; MDA), and antioxidant markers [total thiol groups, superoxide dismutase (SOD), and catalase activity] were also measured in colon tissue. Results: Results indicated that exercise in colitis mice significantly improved DAI, colon length, spleen weight, and histological injury score and alleviated fibrotic changes in colon tissue that were comparable to sulfasalazine group. Exercise also restored the oxidant/antioxidant balance in colitis mice by reducing MDA and increasing antioxidative markers including total thiol groups, SOD, and catalase activity. Conclusions: Taken together, aerobic exercise could improve clinical symptoms and colonic inflammation through, at least, the balancing the oxidative stress markers. Thus, it can be considered in management of colitis patients as effective method.

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