未经证实:肝性脑病(HE)是经颈静脉肝内门体分流术(TIPS)后的主要并发症,主要受肠道微生物群的影响。我们旨在评估TIPS后微生物群的改变以及此类改变与HE之间的关联。
UNASSIGNED:我们对106例接受TIPS治疗的肝硬化患者进行了一项前瞻性纵向研究。在TIPS之前和之后收集粪便样本,通过16S核糖体RNA测序分析肠道微生物群。
未经批准:在所有患者中,33例TIPS后6个月内出现HE(HE+组),73例未出现HE-组,18人在随访中死亡。TIPS之后,本土类群增加了,而在HE-组中潜在的致病类群减少,HE组的本地分类单元Lachnospirosaceae减少。此外,在所有患者中观察到有害细菌之间的协同作用,TIPS后HE组减弱(p<0.001),HE组增强(p<0.01)。5个自生类群的变化,即,球菌,Ruminococus,Blautia,反刍动物科_未培养,和Roseburia,与HE严重程度呈负相关。值得注意的是,球菌和反刍动物的丰度增加是抗HE的保护因素,患者HE的发生率有所改善,稳定,TIPS后微生物群恶化分别为13.3%、25.9%和68.2%,分别。总胆红素水平较高,Child-Pugh评分,终末期肝病评分模型,肉芽肿,TIPS前的Alistipes和下下下颗粒是死亡的独立危险因素。
未经证实:肠道菌群失调的改变与TIPS后HE的发生和严重程度呈负相关,TIPS前的微生物群与死亡有关,提示肠道菌群可能是筛选接受TIPS的合适患者以及预防和治疗TIPS后HE的潜在生物学目标。
未经批准:经颈静脉肝内门体分流术(TIPS)后肠道菌群的改变以及这种改变与TIPS后肝性脑病(HE)之间的关系仍不清楚。因此,我们进行了这项研究,发现在TIPS之后,肠道微生物群的恢复,主要特征是本土类群的扩张,有害分类群的消耗,和削弱有害细菌之间的协同作用,与TIPS后HE的发生和严重程度成反比。
UNASSIGNED: Hepatic encephalopathy (HE) is a major complication after transjugular intrahepatic portosystemic shunt (TIPS) and is primarily influenced by the gut microbiota. We aimed to evaluate alterations in the microbiota after TIPS and the association between such alterations and HE.
UNASSIGNED: We conducted a prospective longitudinal study of 106 patients with cirrhosis receiving TIPS. Faecal samples were collected before and after TIPS, and the gut microbiota was analysed by 16S ribosomal RNA sequencing.
UNASSIGNED: Among all patients, 33 developed HE (HE+ group) within 6 months after TIPS and 73 did not (HE- group), and 18 died during follow-up. After TIPS, the autochthonous taxa increased, whereas the potential pathogenic taxa decreased in the HE- group, and the autochthonous taxon Lachnospiraceae decreased in the HE+ group. Furthermore, synergism among harmful bacteria was observed in all patients, which was weakened in the HE- group (p <0.001) but enhanced in the HE+ group (p <0.01) after TIPS. Variations of 5 autochthonous taxa, namely, Coprococcus, Ruminococcus, Blautia, Ruminococcaceae_uncultured, and Roseburia, were negatively correlated with the severity of HE. Notably, increased abundances of Coprococcus and Ruminococcus were protective factors against HE, and the incidences of HE in patients with improved, stable, and deteriorated microbiota after TIPS were 13.3, 25.9, and 68.2%, respectively. Higher total bilirubin level, Child-Pugh score, model for end-stage liver disease score, Granulicatella, and Alistipes and lower Subdoligranulum before TIPS were the independent risk factors for death.
UNASSIGNED: Alterations in gut dysbiosis were negatively related to the occurrence and severity of post-TIPS HE, and the pre-TIPS microbiota were associated with death, suggesting the gut microbiota could be a promising potential biological target for screening suitable patients receiving TIPS and prevention and treatment of post-TIPS HE.
UNASSIGNED: Alterations in the gut microbiota after transjugular intrahepatic portosystemic shunt (TIPS) and the relationship between such alterations and post-TIPS hepatic encephalopathy (HE) remain unclear. We therefore performed this study and found that after TIPS, restoration of the gut microbiota, mainly characterised by expansion of autochthonous taxa, depletion of harmful taxa, and weakening of synergism among harmful bacteria, was inversely related to the occurrence and severity of post-TIPS HE.