Table 4.

Effect of the two realistic indoxacarb concentrations on glutathione peroxidase (GPx) activity of Theba pisana after different time intervals of exposure

Days after exposure	GPx activity (nmol/mg protein)
	Control	0.02 µg/mL		0.2 µg/mL
	Mean ± SE	Mean ± SE	% of control	Mean ± SE	% of control
7	95.20 ± 1.42a	113.80 ± 4.35a	119.53	118.84 ± 1.19b	124.83
14	96.35 ± 3.40a	122.75 ± 0.59b	127.40	129.62 ± 2.56c	134.53
21	129.30 ± 0.81a	170.93 ± 6.19b	132.19	178.98 ± 1.33b	138.42
28	112.62 ± 0.80a	124.90 ± 3.49a	110.90	126.76 ± 12.39a	112.55

Mean followed by the same letter(s) in each row are not significantly differences from control (p ≤ 0.05)