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Rat colon segments stained with Giemsa: sham (a, b), treated with TNBS 30 mg per animal (c, d), and resveratrol 10 mg kg−1 (e, f). Infiltration of inflammatory cells was highly observed in the colonic mucosa of TNBS-treated animals. Resveratrol prevented development of inflammatory changes. Original magnifications × 20 and × 40.
