Table 2.

The effect of RRL on the respiratory improvement of CS and LPS-induced COPD in rats.

Group	The lung organ coefficient	The lung wet/dry weight ratio
Control	1.474 ± 0.02979	0.4481 ± 0.02956
Model	2.166 ± 0.0365#	0.7365 ± 0.02847##
RRL 200 mg/kg	1.942 ± 0.05976	0.5977 ± 0.009329
RRL 400 mg/kg	1.915 ± 0.0433	0.575 ± 0.02703
RRL 800 mg/kg	1.703 ± 0.07538∗∗	0.4998 ± 0.01312∗
Dex 1 mg/kg	1.608 ± 0.03422∗	0.53 ± 0.02465∗∗

Values are expressed as the mean ± SD; ^#P < 0.05 vs. the control group; ^##P < 0.01 vs. the control group; ^∗P < 0.05 and ^∗∗P < 0.01 vs. the model group.