Table 2.

Effect of PIO on TAOS activity (μM L-ascorbate).

Different groups	TAOS activity (μM L-ascorbate)
Control group	28.40 ± 3.10
STZ group	81.33 ± 5.32
PIO (10 mg) group	72.24 ± 2.78*
PIO (20 mg) group	65.30 ± 3.31*
PIO (30 mg) group	56.30 ± 4.34**

Values are shown as means ± SEM; *P < 0.05 versus STZ group; **P < 0.01 versus STZ group.