Table 2. DNA content in the comet of sclareol-treated cells in hypoxia .

Treatments	% Tail DNA/head DNA
Untreated cells	0.027 ± 0.003**
Sclareol-treated cells-hypoxia	0.298 ± 0.044**
DMSO (5%)-treated cells	0.189 ± 0.048

*Indicated the differences between the treated and untreated cell were significant (P < 0.01).