Effects of Aqueous and Methanolic Extracts of Stem Bark of Alstonia boonei De Wild. (Apocynaceae) on Dextran Sodium Sulfate-Induced Ulcerative Colitis in Wistar Rats

Figure 7

Photographs of colon following treatment with the aqueous and methanol stem-bark extracts of A. boonei. (a) Normal control; (b) negative control; (c) DMSO (5 %); (d) prednisolone (4 mg/kg); (e) aqueous extract (250 mg/kg); (f) methanol extract (250 mg/kg). 1: bleeding, 2: edema.

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