TABLE 1.

Quantification of DNA damage parameters in superoxide-treated HSCs

	DNA damage
	Tail length (µm)	% DNA in tail	Tail moment (µm)
qHSCs
Control	28.3 ± 6.0	42.9 ± 5.7	18.1 ± 5.2
Superoxide	35.3 ± 4.3	45.9 ± 6.8	17.6 ± 4.4
aHSCs
Control	6.7 ± 1.1	2.5 ± 1.1	3.8 ± 1.2
Superoxide	32.0 ± 3.3*	50.2 ± 5.8*	19.6 ± 4.0*

The cells were incubated with 1 mM hypoxanthine (Control) or with hypoxanthine and 2 mU/ ml xanthine oxidase (Superoxide) for 24 h. Comet assay was performed to assess DNA damage parameters.

^*P<0.001 versus control.