Objective: To investigate the correlation between changes in intestinal mucosal permeability and prognosis of patients with liver cirrhosis. Methods: Data of 89 cases with liver cirrhosis who were hospitalized in the Hepatology Department of Shanxi Provincial Hospital of Traditional Chinese Medicine from January 2017 to August 2017 were collected as the liver cirrhosis experimental group, and 40 healthy subjects were randomly selected as the healthy control group. JY-DLT, the Intestinal Mucosal Barrier Biochemical Index Analysis System was used to measure the levels of serum diamine oxidase (DAO), D-lactic acid, and endotoxin (ETX) in two groups to evaluate intestinal mucosal barrier function. Spearman's rank correlation test was used to evaluate the correlation between liver cirrhosis prognosis and intestinal mucosal permeability. The results of the two groups were compared by Mann-Whitney H test of two independent samples. One-way Anova was used for intergroup comparison. The pairwise comparison between groups was performed using the LSD or SNK test. Results: The level of ETX in patients with decompensated cirrhosis was significantly higher than that in the compensated phase, and the difference was statistically significant (P < 0.05). The levels of DAO, D-lactic acid and ETX in the liver cirrhosis group were significantly higher than those in the healthy control group, and the differences were statistically significant (P < 0.01). The plasma levels of DAO, D-lactic acid and ETX in the Child-Pugh grade groups of patients with liver cirrhosis were significantly higher than those in the healthy control group, and the differences were statistically significant (P < 0.05). The results of intergroup comparison showed that there were statistically significant differences in DAO, D-lactic acid and ETX levels between Child-Pugh grade A and grade B groups (t = -4.255, 2.527, -2.179, P < 0.05). Furthermore, there were statistically significant differences in the levels of D-lactic acid and ETX between the Child-Pugh grade A and grade C groups (t = -2.693, -4.248, P < 0.01).The plasma levels of DAO, D-lactic acid and ETX levels were positively correlated (r = 0.205, 0.372, 0.342, P < 0.01). D-lactic acid and ETX levels were positively correlated with CTP score, Forns' index, RPR index, APRI score, FIB-4 index and FibroScan score(P < 0.01). Conclusion: The three indices (plasma DAO, D-lactic acid, and ETX) can accurately detect the changes in intestinal mucosal permeability. Moreover, the higher index of intestinal mucosal permeability causes the more severe degree of liver cirrhosis and the correlation between the intestinal mucosal permeability and the prognosis score of liver cirrhosis provides a reference for a new evaluation system and new ideas for the treatment of liver cirrhosis.
目的： 探讨肝硬化患者肠黏膜通透性改变与肝硬化预后的相关性。 方法： 收集2017年1月至2017年8月于山西省中医院肝病科住院治疗的89例肝硬化患者资料作为肝硬化实验组，随机选择40名健康体检者资料作为健康对照组，采用JY-DLT肠道屏障功能生物化学指标分析系统检测两组血清中二胺氧化酶（DAO）、D-乳酸和内毒素（ETX）水平评价肠道黏膜通透性。应用Spearman秩相关检验评价肝硬化预后与肠黏膜通透性的相关性。两组研究对象结果比较采用两独立样本非参数检验中Mann-Whitney H检验，多组间比较采用单因素方差分析，组间两两比较采用LSD或SNK检验。 结果： 肝硬化失代偿期患者ETX水平明显高于代偿期，差异有统计学意义（P < 0.05）。肝硬化组DAO、D-乳酸和ETX水平均显著高于正常对照组，差异均有统计学意义（P值均< 0.01）。肝硬化患者Child-Pugh分级各组的DAO、D-乳酸及ETX水平均明显高于正常对照组，差异均有统计学意义(P值均< 0.05)；组间比较结果显示，Child-Pugh A级与B级两组相比，DAO、D-乳酸与ETX水平差异均有统计学意义（t值分别为-4.255、2.527、-2.179，P值均< 0.05）；Child-Pugh A级与C级两组间D-乳酸与ETX水平差异均有统计学意义（t值分别为-2.693、-4.248，P值均< 0.01）。DAO、D-乳酸和ETX水平呈正相关（r值分别为0.205、0.372、0.342，P值均< 0.01）。D-乳酸及ETX水平与CTP评分、Frons指数、RPR指数、APRI评分、FIB-4评分及FibroScan值均呈正相关（P值均< 0.01）。 结论： DAO、D-乳酸及ETX 3种检测指标能准确反映肠黏膜通透性的变化；肠道黏膜通透性指标越高，则肝硬化程度越重；肠道黏膜通透性与肝硬化预后评分之间具有相关性，为肝硬化疾病预后提供了新的评价体系参考，为肝硬化的治疗提供了新的思路。.
Keywords: Amine oxidase (copper-containing); Endotoxins; Liver cirrhosis; Permeability.