The free radical scavengers edaravone and tempol suppress experimental dextran sulfate sodium-induced colitis in mice

  • Authors:
    • Yoshio Araki
    • Hiroyuki Sugihara
    • Takanori Hattori
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  • Published online on: February 1, 2006     https://doi.org/10.3892/ijmm.17.2.331
  • Pages: 331-334
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Abstract

Recent studies have suggested that the enhanced release of reactive oxygen species (ROS) plays an important role in the pathogenesis of clinical inflammatory bowel disease (IBD), such as ulcerative colitis and Crohn's disease. In the present study, we investigated the effects of the free radical scavengers edaravone and tempol in the development of experimental dextran sulfate sodium (DSS)-induced colitis in mice. Male BALB/cA mice were fed 4% (w/w of diet) DSS in standard powder chow for 8 days. Edaravone, tempol, or vehicle saline were then injected subcutaneously twice per day. After the experimental period, the colonic length, histological damage score, and mucosal myeloperoxidase (MPO) and serum interleukin-6 (IL-6) levels were measured. Edaravone (15 mg/kg/day) and tempol (5-15 mg/kg/day) suppressed the colonic shortening and the damage score. In particular, tempol at 15 mg/kg/day significantly attenuated the colonic shortening and damage score. Edaravone and tempol suppressed the serum IL-6 levels, and significantly suppressed the increased colonic MPO levels. These results strongly support the involvement of ROS in the pathogenesis of DSS-induced colitis. A clinical effect for edaravone and tempol in IBD patients is strongly expected.

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February 2006
Volume 17 Issue 2

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Araki Y, Sugihara H and Hattori T: The free radical scavengers edaravone and tempol suppress experimental dextran sulfate sodium-induced colitis in mice. Int J Mol Med 17: 331-334, 2006.
APA
Araki, Y., Sugihara, H., & Hattori, T. (2006). The free radical scavengers edaravone and tempol suppress experimental dextran sulfate sodium-induced colitis in mice. International Journal of Molecular Medicine, 17, 331-334. https://doi.org/10.3892/ijmm.17.2.331
MLA
Araki, Y., Sugihara, H., Hattori, T."The free radical scavengers edaravone and tempol suppress experimental dextran sulfate sodium-induced colitis in mice". International Journal of Molecular Medicine 17.2 (2006): 331-334.
Chicago
Araki, Y., Sugihara, H., Hattori, T."The free radical scavengers edaravone and tempol suppress experimental dextran sulfate sodium-induced colitis in mice". International Journal of Molecular Medicine 17, no. 2 (2006): 331-334. https://doi.org/10.3892/ijmm.17.2.331