Evaluation of the anti-inflammatory and antioxidant effects of the sucralfate in diversion colitis

Author(s)

Carlos Augusto Real Martinez ; Murilo Rocha Rodrigues ; Daniela Tiemi Sato ; Camila Morais Gonçalves da Silva ; Danilo Toshio Kanno ; Roberta Laís dos Santos Mendonça ; José Aires Pereira

• Document type: Journal article
• Source: J. Coloproctol. (Rio J.); v. 35, n. 2, p. 90-99, Jun. 2015.

Abstract

Objective: To evaluate the anti-inflammatory and antioxidant effects of sucralfate enemas in diversion colitis model. Method: Thirty-six Wistar rats underwent intestinal bypass by end colostomy in the descending colon and distal mucous fistula. The animals were divided into 3 experimental groups according to the daily dose of enemas received containing 0.9% SF, sucralfate enemas or sucralfate enemas 1 g/kg/day or 2 g/kg/day. Each group was divided into two subgroups according to euthanasia to be performed 2-4 weeks after derivation. The tissue grade of inflammation was assessed histologically, and neutrophil infiltration by the tissue expression of myeloperoxidase (MPO) identified by immunohistochemistry and quantified by computerized morphometry. Oxidative stress was measured by tissue levels of malondialdehyde (MDA). To compare the results the Student's t test variance was used, and also the variance by ANOVA test, establishing a level of significance of 5% (p < 0.05) for both. Results: The intervention with sucralfate enemas showed improvement in the intensity of tissue inflammation related to the concentration used and the duration of the intervention. Intervention with sucralfate enemas reduced the tissue levels of MPO, independent of concentration or time of intervention (p < 0.01). There was a reduction of MDA levels in animals irrigated with sucralfate enemas, independent of concentration or duration of the intervention (p < 0.01). Conclusion: Enemas with sucralfate enemas reduce inflammation, neutrophil infiltration and oxidative stress in the excluded colon suggesting topical application of the substance to be a valid therapeutic option for the treatment of diversion colitis. (AU)

• FAPESP's process: 10/12492-7 - Evaluation of antioxidant effects of 5-aminosalycylic acid, N-acetylcysteine, sucralfate, curcumin and aqueous extract of Ilex paraguariensis in contente and pattern of tissue expression of intercellular junctions proteins: study in rats
• Grantee: Carlos Augusto Real Martinez
• Support type: Regular Research Grants