. 2015 Nov 18;24(7):1672–1678. doi: 10.1016/j.sjbs.2015.10.021

Table 5.

Effect of ZnNPs on antioxidant enzymes activity in the brain of O. niloticus.

Group	CAT μMH₂O₂ decomposed/g tissue	SOD ug/mgP	GST nmol/mg P/min	GR U/mgP	GPx (μU min⁻¹ mg⁻¹ P)
Control	38.6 ± 3	20 ± 3	250 ± 19	18 ± 3	127 ± 15
500 μg L⁻¹	40 ± 6.2	30 ± 2.1^∗∗	308 ± 24^∗∗	28.4 ± 3^∗∗	182 ± 12^∗∗∗
2000 μg L⁻¹	26 ± 4^∗∗,##	12.2 ± 2^∗,###	96 ± 8^{∗∗∗,###}	9.8 ± 2^∗,###	71 ± 6^{∗∗∗,###}

^∗: P < 0.05, ^∗∗: P < 0.01, ^∗∗∗: P < 0.001, compared to the control group; ^#: P < 0.05, ^##: P < 0.01, ^###: P < 0.001, comparing to 500 μg L⁻¹ of the ZnNP exposed group.