Bacteroides in colonic mucosa-associated microbiota affects the development of minimal hepatic encephalopathy in patients with cirrhosis.
Cirrhosis
Microbiota
Minimal hepatic encephalopathy
Next-generation sequencing
Journal
Hepatology international
ISSN: 1936-0541
Titre abrégé: Hepatol Int
Pays: United States
ID NLM: 101304009
Informations de publication
Date de publication:
Jul 2019
Jul 2019
Historique:
received:
13
02
2019
accepted:
17
06
2019
pubmed:
11
7
2019
medline:
28
1
2020
entrez:
11
7
2019
Statut:
ppublish
Résumé
Gut microbiota has been associated with liver cirrhosis and, possibly, hepatic encephalopathy. However, only a few studies have examined the link between mucosa-associated microbiota (MAM) and minimal hepatic encephalopathy (MHE). Our aim was to investigate this relationship. Twenty-four patients with cirrhosis underwent colon biopsies at our institution, between January 2014 and April 2015. Patterns of microbial colonization were examined using 16S rRNA gene sequences. MHE was diagnosed using the Neuropsychological Test. Ten (41.7%) of the 24 patients were diagnosed as having MHE. There was no significant difference in the diversity of gut microbiota by sampling locations between those with and without MHE. However, the diversity of the gut microbiota and the proportion of the genus Bacteroides decreased as a function of declining liver function. We divided patients into those with the highest proportion of the genus Bacteroides (Bacteroides-dominant group; n = 9) and into a Bacteroides non-dominant group (n = 15). In the Bacteroides-dominant group, only 1 patient (11.1%) was diagnosed as having MHE, with the incidence rate of MHE being significantly lower in the Bacteroides-dominant group than in the non-dominant group (p = 0.019). The Child-Pugh score (p = 0.05) and use of proton-pump inhibitors (p = 0.015) were negatively correlated to the proportion of Bacteroides. Furthermore, the proportion of the family Clostridiaceae was significantly higher in the Bacteroides-dominant group than in the non-dominant group (p = 0.078). The decrease in microbial diversity and genus Bacteroides in MAM is a risk factor for MHE in patients with liver cirrhosis.
Sections du résumé
BACKGROUND/PURPOSE
OBJECTIVE
Gut microbiota has been associated with liver cirrhosis and, possibly, hepatic encephalopathy. However, only a few studies have examined the link between mucosa-associated microbiota (MAM) and minimal hepatic encephalopathy (MHE). Our aim was to investigate this relationship.
METHODS
METHODS
Twenty-four patients with cirrhosis underwent colon biopsies at our institution, between January 2014 and April 2015. Patterns of microbial colonization were examined using 16S rRNA gene sequences. MHE was diagnosed using the Neuropsychological Test.
RESULTS
RESULTS
Ten (41.7%) of the 24 patients were diagnosed as having MHE. There was no significant difference in the diversity of gut microbiota by sampling locations between those with and without MHE. However, the diversity of the gut microbiota and the proportion of the genus Bacteroides decreased as a function of declining liver function. We divided patients into those with the highest proportion of the genus Bacteroides (Bacteroides-dominant group; n = 9) and into a Bacteroides non-dominant group (n = 15). In the Bacteroides-dominant group, only 1 patient (11.1%) was diagnosed as having MHE, with the incidence rate of MHE being significantly lower in the Bacteroides-dominant group than in the non-dominant group (p = 0.019). The Child-Pugh score (p = 0.05) and use of proton-pump inhibitors (p = 0.015) were negatively correlated to the proportion of Bacteroides. Furthermore, the proportion of the family Clostridiaceae was significantly higher in the Bacteroides-dominant group than in the non-dominant group (p = 0.078).
CONCLUSIONS
CONCLUSIONS
The decrease in microbial diversity and genus Bacteroides in MAM is a risk factor for MHE in patients with liver cirrhosis.
Identifiants
pubmed: 31290070
doi: 10.1007/s12072-019-09963-2
pii: 10.1007/s12072-019-09963-2
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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