Table 2.

The level of DNA damage in K-562 cells after 0 and 24 h of irradiation with ultrashort pulses of the electron beam

Dose, Gy	Mean (OTM) ± SEM
	3.6 Gy/min		36 Gy/min
	0 h	24 h	0 h	24 h
0	5.08 ± 1.91	7.67 ± 2.73	6.05 ± 2.73	4.26 ± 0.40
2	20.39 ± 6.24*	12.24 ± 5.61#	19.09 ± 2.11*	9.17 ± 2.43*#
4	35.04 ± 8.82*	8.06 ± 4.63#	28.01 ± 1.84*	10.05 ± 3.24*#
8	29.35 ± 8.22*	5.39 ± 2.02#	31.18 ± 3.08*	13.39 ± 1.58*#

*P < 0.05 in comparison with the corresponding control; ^#P < 0.05 in comparison with the corresponding data at the 0 h time point.