Planta Med 1999; 65(7): 651-653
DOI: 10.1055/s-2006-960838

© Georg Thieme Verlag Stuttgart · New York

Anti-Inflammatory Activity of Diosmin and Hesperidin in Rat Colitis Induced by TNBS

M. E. Crespo, J. Gálvez, T. Cruz, M. A. Ocete, A. Zarzuelo
  • Department of Pharmacology, School of Pharmacy, University of Granada, Campus Universitario “La Cartuja” s/n, Granada, Spain
Further Information

Publication History



Publication Date:
04 January 2007 (online)


The intestinal anti-inflammatory activity of two flavonoids, hesperidin and diosmin, was evaluated in the acute stage of the trinitrobenzenesulfonic acid (TNBS) model of rat colitis. The results obtained showed that pretreatment with diosmin (10 mg/kg) or hesperidin (10 and 25 mg/kg) reduced colonic damage compared to TNBS control rats. This effect was confirmed biochemically by a reduction in colonic myeloperoxidase activity compared to non-treated colitic animals. Colonic glutathione levels in colitic animals were significantly increased after hesperidin or diosmin treatment. Diosmin decreased colonic MDA production and inhibited LTB4 synthesis, whereas hesperidin failed to do so. Conversely, only hesperidin improved colonic fluid absorption, which was impaired in colitic animals. In conclusion, both diosmin and hesperidin were able to prevent colonic inflammation, acting via a mechanism in which protection against oxidative insult may play a role.