非生物人工肝支持系统治疗肝功能衰竭的血清氨基酸谱变化

目的 分析肝功能衰竭患者接受非生物人工肝支持系统(ALSS)治疗引起的血清氨基酸谱变化,阐述非生物ALSS治疗肝功能衰竭的有效性.方法 对2009年6月至2010年8月间146例肝功能衰竭患者行非生物ALSS治疗,观察治疗前后患者血清氨基酸谱的变化情况,并对不同预后、不同肝功能衰竭类型以及处于不同肝功能衰竭时期患者的血清氨基酸水平的变化进行研究.计量资料采用配对样本的t检验.结果 非生物ALSS治疗后,血清谷氨酸和赖氨酸下降明显[(395.62±200.24)μumol/L比(260.05±169.56)μmol/L,(436.73±326.18)μmol/L比(407.12±292.01)μmol/L;t＝8.611,t＝2.659;均P＜0.01],苏氨酸、支链氨基酸/芳香族氨基酸显著上升[(1302.90±1288.70)μmol/L比(1406.70±1272.34)μmol/L,1.23±0.53比1.36±0.57;t＝2.895,t＝1.061;均P＜0.01].在预后不同的患者间、不同肝功能衰竭类型以及处于不同时期的肝功能衰竭患者间,谷氨酸、酪氨酸、精氨酸以及蛋氨酸等治疗前后差异有统计学意义.结论 非生物ALSS治疗可以改善肝功能衰竭患者血清氨基酸紊乱状况.不同肝功能衰竭分类、分期以及不同预后患者的血清氨基酸谱在非生物ALSS治疗后有显著不同的变化.

Abstract：

Objective To analyze the patterns of amino acid changes in liver failure patients treated with non-bioartificial liver support system (ALSS), and to explore the efficacy of ALSS in liver failure treatment. Methods A total of 146 liver failure patients treated with ALSS from June 2009 to August 2010 were recruited in this study. Paired blood samples were collected from every patient and serum amino acids and ammonia were tested by automatic amino acid analyzer. The changes of amino acids in patients with different prognoses, different types/phases of liver failure were evaluated.Measurement data were compared by paired t test. Results After ALSS treatment, liver failure patients experienced a significant decrease in serum glutamic acid and lysine [(395.62±200.24)μmol/Lvs (260. 05±169.56) μmol/L and (436. 73±326. 18)μmol/L vs (407. 12±292.01) μmol/L,respectively; t= 8. 611 and 2. 659, respectively; both P＜0.01)], while experienced greatly increases in threonine and branched-chain amino acids/aromatic amino acid ratio [( 1302. 90 ±1288.70) μmol/L vs (1406.70 ±1272. 34) μmol/L and 1. 23 ± 0. 53 vs 1. 36 ± 0.57, respectively; t = 2. 895 and 1. 061,respectively; both P＜0. 01)]. The changes of glutamic acid, tyrosine, arginine and methionine before and after ALSS treatment in patients with different prognoses, different types/phases of liver failure were all significantly different. Conclusions ALSS treatment could improve the serum amino acid disorder in liver failure patients. The amino acids in patients with different types/phases or different prognoses of liver failure change significantly after ALSS treatment.

Serum amino acids changes in liver failure patients treated with non-bio-artificial liver support system

Objective To analyze the patterns of amino acid changes in liver failure patients treated with non-bioartificial liver support system (ALSS), and to explore the efficacy of ALSS in liver failure treatment. Methods A total of 146 liver failure patients treated with ALSS from June 2009 to August 2010 were recruited in this study. Paired blood samples were collected from every patient and serum amino acids and ammonia were tested by automatic amino acid analyzer. The changes of amino acids in patients with different prognoses, different types/phases of liver failure were evaluated.Measurement data were compared by paired t test. Results After ALSS treatment, liver failure patients experienced a significant decrease in serum glutamic acid and lysine [(395.62±200.24)μmol/Lvs (260. 05±169.56) μmol/L and (436. 73±326. 18)μmol/L vs (407. 12±292.01) μmol/L,respectively; t= 8. 611 and 2. 659, respectively; both P＜0.01)], while experienced greatly increases in threonine and branched-chain amino acids/aromatic amino acid ratio [( 1302. 90 ±1288.70) μmol/L vs (1406.70 ±1272. 34) μmol/L and 1. 23 ± 0. 53 vs 1. 36 ± 0.57, respectively; t = 2. 895 and 1. 061,respectively; both P＜0. 01)]. The changes of glutamic acid, tyrosine, arginine and methionine before and after ALSS treatment in patients with different prognoses, different types/phases of liver failure were all significantly different. Conclusions ALSS treatment could improve the serum amino acid disorder in liver failure patients. The amino acids in patients with different types/phases or different prognoses of liver failure change significantly after ALSS treatment.