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Histological sections of colonic mucosa from colitic rats 48 h after TNBS instillation (acute phase). (a) Non-colitic group; (b) TNBS-control group; (c and d:) UR-12746 treated groups at doses of 50 and 100 mg kg−1, respectively. Original magnification: 100×. Calibration bar=150 μm.
