In oral placebo group , post-operative insulin resistance index , REE , respiratory quotient , serum triglyceride level and the rectus abdominis mitochondrial damage index were 12.68 3.13 , ( 1458 169 ) kcal/d , 0.73 0.42 , ( 0.53 0.24 ) g/L and 1.14 0.33 , respectively .