. 2016 Jul 4;23(6):754–760. doi: 10.1016/j.sjbs.2016.06.008

Table 4.

Effect of Ag-NPs on antioxidant enzymes activity in brain of O. niloticus and T. zillii.

Fish	Group	CAT μM H₂O₂ decomposed/g tissue	SOD μg/mg P	GST nmol/mg P/min	GR U/mg P	GPx (μU min⁻¹ mg⁻¹ P)
O. niloticus	Control	38.6 ± 3	20 ± 3	250 ± 19	18 ± 3	127 ± 15
	2 mg/L	39 ± 5	18.1 ± 3	230 ± 30	16 ± 2	1115 ± 10
	4 mg/L	30 ± 2^∗,#	8 ± 1^∗∗,##	115 ± 10^{∗∗∗,###}	6.1 ± 1^∗∗∗,##	63 ± 8^{∗∗∗,###}

T. zillii	Control	36.6 ± 3	18.4 ± 2.7	233 ± 16	17.4 ± 2.7	127.4 ± 28
	2 mg/L	35.2 ± 5	16.1 ± 3	220 ± 18	14 ± 2	116 ± 20
	4 mg/L	28 ± 2^{∗, #}	8.1 ± 2^∗∗,##	120 ± 18^{∗∗∗,###}	8 ± 1.9^∗∗∗,##	71 ± 8^{∗∗∗,###}

^*P < 0.05, ^**P < 0.01, ^***P < 0.001, compared to control group of the same fish species; ^#P < 0.05, ^##P < 0.01, ^###P < 0.001, comparing to 2 mg/L Ag-NPs exposed group of the same fish species.