精氨酸对肝硬化肝癌患者术后全胃肠外营养的肝脏保护作用

目的 研究精氨酸对原发性肝癌（primary liver cancer,PLC)伴肝硬化病人术后全胃肠外营养（total parenteral nutrition,TPN)时的肝脏保护作用。方法 将30例行肝段或肝叶切除手术的病人随机分为对照组（TPN组）及实验组（TPN＋精氨酸组）。观察病人术前、术后1d及7d肝功能、血脂、免疫功能及血清一氧化氮（nitric oxide,NO)浓度变化，并在术中及术后7d取肝组织作病理学检查。结果 与对照组比较，实验组术后7d AST、TBIL已接近术前水平，ALB明显降低，TG仍比术前低，CD4^ 水平和NO浓度升高，肝脂肪变性程度下降。结论 补充精氨酸可增加NO浓度，减轻TPN时的肝脂肪沉积程度，降低血脂水平，加快术后肝酶活性恢复，改善和提高肝癌病人术后细胞免疫功能。

L-arginine protects liver cancer patients on total parenteral nutrition

Objectives To study the liver protective effect of L arginine for postoperative cirrhotic patients with primary liver cancer (PLC) receiving total parenteral nutrition (TPN). Methods Thirty preoperative cases were divided into two groups:Group A,TPN only( n =14);Group B,TPN arginine( n =16). Liver function, serum lipid, immune function and serum nitric oxide were observed on preoperative phase, postoperative day 1 (POD 1) and day 7 (POD7) respectively. Liver biopsy was taken for histological study intraoperatively and on POD 7. Results Compared with group A on POD7,AST and TBIL level were near preoperative level, ALB level signiflcanly decreased, TG was lower than preoperative level, CD4 and NO increased signiflcanly,and the degree of liver steatosis showed a signiflcant decrease in group B. Conclusions Supplement of appropriate amounts of L arginine increases hepatic NO level, reduces serverity of hepatic steatosis associated with TPN, promotes postoperative recovery of transaminase activity, ameliorates cell mediated immunity and anti infection capacity in postoperative PLC patients.