RESULTS	( 4 ) The content of E and Cor after the surgery were all increased ( all P < 0.01 ) , and the ascending extent of E in group D was lower than that in group A ( P < 0.05 ) , and the ascending level of Cor in group B and D were lower than that in group A ( P < 0.01 ) and group B compared with group C and D were got the same result .\