Assessment of Genotoxic and Cytotoxic Hazards in Brain and Bone Marrow Cells of Newborn Rats Exposed to Extremely Low-Frequency Magnetic Field

Table 2

DNA damage in the brain of newborn rats after whole body exposure to 50 Hz and 0.5 mT MF for 30 days 24 h/day, assessed by comet assay. Each value was expressed as mean of 10 rats ± standard error.

Groups	Grade of damage
	Type (0)	Type (1)	Type (2)	Type (3)	Type (4)	Types (2 + 3 + 4)
Control	49.3±0.67	28.7±2.196	15.3±0.33	6.7±0.33	0	22±0.57
Exposed	17.3±0.67^∗∗	43.3±2.31^∗	19.7±0.33^∗∗	13.7±0.88^∗∗	6±0.58^∗∗∗	39.3±1.76^∗∗

∗,∗∗,∗∗∗Significant difference in comparison with the corresponding control at 𝛼=0.01, 0.001, and 0.0001, respectively.