川芎嗪联用异丙酚对围手术期缺血-再灌注损伤肝脏的保护作用

目的 探讨川芎嗪、异丙酚联合使用对围手术期缺血-再灌注损伤肝脏的保护作用及其机制。方法 选择36例肝癌手术患者，随机分为对照组、川芎嗪组、异丙酚组和川芎嗪加异丙酚组。动态观察超氧化物歧化酶（SOD）活性、脂质过氧化物（LPO）浓度、血栓素B2（TXB2）／6-酮-前列腺素F1α（6-keto-PGF1α）比值、谷丙转氨酶（ALT）活性及肝细胞形态学的变化。结果 与对照组比较，川芎嗪组、异丙酚组、川芎嗪加并丙酚组血浆SOD活性均明显增高（P〈0．05或P〈0．01），LPO浓度、TXB2／6-keto-PGF1α比值及ALT活性均显著下降（P〈0．05或P〈0．01），肝细胞形态学异常改变明显减轻。结论 川芎嗪联用异丙酚可通过降低体内氧自由基水平、减轻脂质过氧化反应，纠正血栓素A2与前列环素失衡，对围手术期缺血-再灌注损伤肝脏发挥较明显的保护作用。

Protective Effect of Ligustrazine and Propofol on Peri-oper ational Liver Ischemia-Reperfusion Injury

OBJECTIVE: To explore the protective effect and mechanism of ligustrazine (LGT) and propofol (PRO) on peri-operational liver ischemia-reperfusion injury (HIRI). METHODS: Thirty-six patients scheduled for hepatic surgery were randomly divided into the control group, the LGT group, the PRO group and the LGT + PRO group, 9 patients in each group. Changes of superoxide dismutase (SOD), lipid peroxide (LPO), ratio of thromboxane B2 (TXB2) and 6-keto-prostaglandin F1alpha (6-keto-PGF1alpha), alanine aminotransferase (ALT) activity, and the ultrastructure of liver tissue were dynamically observed. RESULTS: Compared with the control group, SOD activity was significantly higher, LPO concentration, TXB2/6-keto-PGF1alpha ratio and ALT value were significantly lower (P < 0.05 and P < 0.01) in the LGT group, the PRO group and the LGT + PRO group during HIRI, with the abnormal changes of hepatic ultrastructure 25 min after reperfusion significantly alleviated in the three treated group. CONCLUSION: Combination of ligustrazine and propofol shows protective effect on liver by decreasing oxygen free radical level, reducing lipid peroxidation and adjusting TXA2/PGI2 imbalance after hepatic ischemia-reperfusion in patients undergoing hepatic cancer surgery.