Fig. 4From: Nightshift work can induce oxidative DNA damage: a pilot studyThe ratio of 8-oxoG and 8-oxodG in serum and urine in 16 volunteers8-oxoG, 8-oxo-7,8-dihydroguanosine; 8-oxodG, 8-oxo-7,8-dihydro-2’-deoxyguanosine; Cr, creatineAll data are presented as the mean ± standard deviation*p < 0.05, **p ≤ 0.01Back to article page