. 2023 May 29;68(5):218–224. doi: 10.17221/40/2023-VETMED

Table 1. Antioxidant enzyme activities and lipid peroxidation in the whole body homogenate of the zebrafish after subchronic exposure to tonalide.

Indices	Control	Tested groups
Indices	Control	50 ng/l	500 ng/l	5 000 ng/l	50 000 ng/l
CAT	151.9 ± 7.8^a	125.2 ± 4.7^a	112.2 ± 6.0^b	125.9 ± 9.0^a	128.6 ± 6.5^a
GPx	31.0 ± 3.5^a	26.1 ± 1.2^a	24.7 ± 1.7^a	32.1 ± 1.2^a	25.8 ± 0.9^a
GR	12.4 ± 0.8^a	10.1 ± 0.7^a	10.6 ± 0.5^a	10.5 ± 0.6^a	10.0 ±.0.3^a
GST	176.2 ± 4.5^a	177.9 ± 2.2^a	188.1 ± 3.8^a	186.0 ± 9.4^a	157.7 ± 3.0^a
TBARS	94.3 ± 15.7^b	107.2 ± 15.6^b	261.9 ± 30.9^a	136.5 ± 14.5^b	261.4 ± 24.2^a

The data are presented as the mean ± standard error of the mean. Significant differences among the groups (P < 0.05) are indicated by different alphabetic superscripts and the bold font

CAT = catalase in μmol/min/mg protein; GPx = glutathione peroxidase in nmol/min/mg protein; GR = glutathione reductase in nmol/min/mg protein; GST = glutathione S-transferase in nmol/min/mg protein; TBARS = lipid peroxidation in nmol/g of tissue