The cortical levels on day 3 in Chinese herb and cortical groups were much higher than that before treatment ( 343.0431.20 g/L vs. 294.7042.10 g/L , 331.2542.80 g/L vs. 280.3638.10 g/L , both P < 0.01 ) and that of control group ( 291.6141.50 g/L , both P < 0.01 ) , though no significant statistical difference was observed between two groups ( both P > 0.05 ) .