On postoperative day 7 , CD4 ( + ) , CD4 ( + ) / CD8 ( + ) and NK cells in treatment group were significantly higher than those in control group [ ( 39.14.3 ) % vs. ( 30.15.7 ) % , P = 0.043 ; 1.760.21 vs. 1.360.12 , P = 0.038 ; ( 19.34.8 ) % vs. ( 13.33.2 ) % , P = 0.032 ] , while FINS , lnHOMA-IR and PCT in treatment group were significantly lower than those in control group [ ( 7.31.7 ) mU/L vs. ( 10.22.1 ) mU/L , P = 0.041 ; 0.600.05 vs. 0.880.06 , P = 0.039 ; ( 0.120.07 ) g/L vs. ( 0.350.12 ) g/L , P = 0.028 ] .