Table 2.

The parameters of DNA damage in HeLa cells exposed to the different concentrations of IVM for 12 h in alkaline comet assay

Concentrations (μmol/L)	Comet assay parameters
	Tail DNA (%)	Tail length (μm)
0	1.78 ± 0.15 e	1.39 ± 0.57 d
2.5	10.27 ± 3.255 d	3.96 ± 1.49 d
5	25.48 ± 4.57 c	11.75 ± 3.43 c
10	47.32 ± 5.18 b	21.16 ± 5.31 b
20	70.12 ± 5.36 a	30.46 ± 3.92 a

IVM, ivermectin.

The data are shown as the means ± SD of three independent experiments.

Small alphabet indicated statistically significant differences between any two groups in the same column (P < 0.05).