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Colonic mucosal matrix metalloproteinase-2 and -9 protein expression in control, AE-941, and ulcerative colitis model groups at different timepoints. The expression of matrix metalloproteinases (MMP)-2 (A) and MMP-9 (B) protein in the colonic mucosa of the ulcerative colitis model group was significantly higher than in the control group (P < 0.05). By days 21 and 56 expression of MMP-2 and MMP-9 in the AE-941 treatment group was significantly less than in the model group (P < 0.05).
