Fig. 5. Comparison of malondialdehyde (MDA) level and superoxide dismutase (SOD) activity in colonic tissues from normal and streptozotocin (STZ)-treated mice. (A) Summary of the MDA concentration in colonic muscular layers from normal and STZ-treated mice (n = 3). (B) Summary of SOD activity in colonic tissues from normal and STZ-treated mice. Data are shown as the mean ± SEM (n = 5; *P < 0.05). NS, not significant.
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