 Blood Sampling and Biochemical Analysis Ulnar venous blood samples were collected from the participants three times fasting, between 6:00 and 7:00 AM: before 0, one day 1 and four days 2 after laparoscopic surgery. Baseline 0 blood samples were used for routine pre-operative laboratory assessment, including complete blood count, basic coagulation tests, C-reactive protein, glucose and electrolytes levels. Total antioxidant status TAS and thiobarbituric acid-reacting substances TBARS were determined in three time points: 0, 1 and 2 as described above. 