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Imunohistochemical profile of p53 and Ki67 from patients with unspecific ulcerative colitis

Objectives: The present study evaluated, trough immunohistochemistry and histopatologic analysis, the main alterations in intestinal mucous from patients with unspecific ulcerative colitis (IUC) clinically (n=30) or surgically treated (n=30) with ileal J-pouch and permanent ileostomy. Methods: Thus, tissue slices from intestinal mucous were submitted to imunostains for p53 and Ki67 proteins, and Haematoxilin-eosin staining for comparative histopathological evaluation. Results: The results indicated important differences in inflammatory profile and erosion/necrosis sites on the both investigated groups. Related to imunoexpression was observed a higher reactivity with nuclear pattern, mainly in inflammatory tissues from IUC patients clinically treated. Conclusions: Those results showed that, according to histopathological and imunohistochemical parameters, the colonic mucous from IUC patients submitted to surgical treatment exhibited less alterations than IUC patients clinically treated. The data suggest that those methods could be helpful to diagnosis and assist the accompaniment of patients under different therapeutic routines.

Ulcerative colitis; immunohistochemistry; p53; Ki63; inflammatory profile


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