Protective effects of citicoline on TNBS-induced experimental colitis in rats
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The aim of this study was to investigate the effects of citicoline on the development of colitis and antioxidant parameters in rats subjected to tribenzene sulfonic acid (TNBS)-induced colitis. Twenty four Wistar Albino female rats were divided into four subgroups (n=6) (control, colitis control, colitis + 50 mg/kg citicoline, colitis + 250 mg/kg citicoline). Colitis was induced using an enema of TNBS and ethanol; following which citicoline was administrated for 3 days and effects of citicoline was subsequently evaluated. Based on microscopic damage scores, there was no difference between rats of the TNBS-colitis and 50 mg/kg citicoline treated groups, whereas treatment with 250 mg/kg citicoline, caused significant reduction in colon injury compared to that observed in rats of TNBS-colitis group. In terms of the biochemical analyses, myeloperoxidase (MPO), malondialdehyde (MDA), reduced glutathione (GSH), and IL-6 levels in rats from 250 mg/kg citicoline group were significantly different from that TNBS-colitis group. The levels of MPO, MDA, GSH and IL-6 in control rats were also significantly different those of rats in the TNBS-colitis group. Citicoline may have a positive protective effect on the inflammatory bowel disease treatment process and could, therefore, be used as an adjunct therapy in colitis. These effects of citicoline may exist through anti-inflammatory and antioxidant mechanism.