alexa Effects of trimetazidine on acetic acid-induced colitis in female Swiss rats.
Molecular Biology

Molecular Biology

Journal of Cytology & Histology

Author(s): Kuralay F, Yildiz C, Ozutemiz O, Islekel H, Caliskan S,

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Abstract Induction of colitis by acetic acid (AA) in the rat is widely used experimental model of inflammatory bowel disease (IBD) and ulcerations. AA as an irritant induces colitis involving infiltration of colonic mucosa with neutrophils and increased production of inflammatory mediators, such as hydrogen peroxide (H2O2), nitric oxide (NO), myeloperoxidase activity (MPO), and tumor necrosis factor (TNF-alpha). Trimetazidine (TMZ), an antianginal compound, was administered to investigate if its cytoprotective features in cardiac tissue are also effective in AA colitis where ischemic injury contributes to colitis. Administration of TMZ intraperitoneally improved the macroscopic and microscopic score alterations produced by AA. AA administration significantly elevated colonic MPO activity; however, treatment with TMZ significantly lowered this enzyme activity compared to AA. AA administration significantly enhanced superoxide dismutase (SOD) activities, except for AA + TMZ given rectally. TMZ treatment significantly lowered nitrate levels, but AA increased these levels. AA administration markedly lowered TNF-alpha levels, but TMZ treatment elevated these levels to control. These findings indicate that overproduction of NO may be involved in the immunosuppression observed during acute AA-induced rat colitis. In conclusion, TMZ treatment was more effective via the intraperitoneal than rectal route, and may be beneficial in therapy of colitis. This article was published in J Toxicol Environ Health A and referenced in Journal of Cytology & Histology

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