After admission, venous blood was obtained fasting in themorning for each patient and analyzed for biochemicalparameters (triglycerides, HDL-C, fasting glucose and fastingInsulin levels) using standard laboratory techniques which isalready a clinical routine in our hospital. At baseline andon postoperative days (PODs) 1, 3, and 7, blood sampleswere collected, processed by centrifugation, then were frozenat −70◦C until assayed. Neuronal injury S100b protei