Table 2. Comparisons of W/D ratio, MDA contents and SOD activities in the lung tissue, as well as CAT and GPx activities in serum among four groups.

Groups	W/D Ratio	MDA (nmol/mgprotein)	SOD (U/mgprotein)	CAT(U/ml serum)	GPx (U)
C	3.76±0.21	1.96±0.48	88.93±23.76	67.85±15.25	381.37±74.94
L	5.68±0.25*	4.37±0.72*	47.24±12.28*	36.83±12.19*	213.53±61.94*
EL	4.71±0.17* +	3.25±0.52* +	63.48±18.76* +	50.74±19.13* +	303.46±86.29* +
SEL	5.65±0.35*	4.33±0.83*	46.37±13.34*	31.26±11.99*	219.88±70.54*

Abbreviations: W/D, wet to dry weight ratio; MDA, malondialdehyde; SOD, superoxide dismutase; CAT, catalase; GPx, glutathione peroxidase. Values as means ± SD (n = 10).

*P<0.05 versus control group;

⁺ P<0.05 versus LPS group.