Chronological changes in the gut microbiota and intestinal environment in recipients and donors of living donor liver transplantation.
dysbiosis
fecal organic acid
predominant obligate anaerobes
reverse-transcription quantitative polymerase chain reaction
short-chain fatty acid
Journal
Journal of hepato-biliary-pancreatic sciences
ISSN: 1868-6982
Titre abrégé: J Hepatobiliary Pancreat Sci
Pays: Japan
ID NLM: 101528587
Informations de publication
Date de publication:
Apr 2023
Apr 2023
Historique:
revised:
11
08
2022
received:
08
06
2022
accepted:
26
08
2022
medline:
28
4
2023
pubmed:
1
10
2022
entrez:
30
9
2022
Statut:
ppublish
Résumé
This prospective study aimed to investigate the dynamic changes in the gut microbiota (GM) and associated intestinal environment, which were assessed by measuring fecal organic acid (OA) concentrations, during the early period after liver transplantation (LT). To understand the fundamental characteristics of the human GM, data obtained from living donors were also analyzed. Fixed-point observation was performed in 23 recipients and 21 donors for up to 2 weeks after LT. The GM and OA concentrations were investigated using ribosomal RNA-targeted reverse-transcription quantitative polymerase chain reaction and high-performance liquid chromatography, respectively. Before LT, the recipients exhibited remarkable dysbiosis and OA depletion, which were proportional to the model for end-stage liver disease score. Correlations between the abundances of some specific strains and OA concentrations were observed. After LT, while donor lobectomy caused only slight, transient and reversible changes in the GM and OA concentrations, recipients exhibited delayed recovery in these factors. However, no clear evidence of causality was observed between the GM or OA concentrations and LT outcomes. The GM and intestinal environment in LT recipients exhibited characteristics that were clearly different from those in donors. LT did not normalize but rather disrupted the GM during the early post-LT period, but its negative clinical impact could be minimized with perioperative management.
Sections du résumé
BACKGROUND/PURPOSE
OBJECTIVE
This prospective study aimed to investigate the dynamic changes in the gut microbiota (GM) and associated intestinal environment, which were assessed by measuring fecal organic acid (OA) concentrations, during the early period after liver transplantation (LT). To understand the fundamental characteristics of the human GM, data obtained from living donors were also analyzed.
METHODS
METHODS
Fixed-point observation was performed in 23 recipients and 21 donors for up to 2 weeks after LT. The GM and OA concentrations were investigated using ribosomal RNA-targeted reverse-transcription quantitative polymerase chain reaction and high-performance liquid chromatography, respectively.
RESULTS
RESULTS
Before LT, the recipients exhibited remarkable dysbiosis and OA depletion, which were proportional to the model for end-stage liver disease score. Correlations between the abundances of some specific strains and OA concentrations were observed. After LT, while donor lobectomy caused only slight, transient and reversible changes in the GM and OA concentrations, recipients exhibited delayed recovery in these factors. However, no clear evidence of causality was observed between the GM or OA concentrations and LT outcomes.
CONCLUSIONS
CONCLUSIONS
The GM and intestinal environment in LT recipients exhibited characteristics that were clearly different from those in donors. LT did not normalize but rather disrupted the GM during the early post-LT period, but its negative clinical impact could be minimized with perioperative management.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
439-452Subventions
Organisme : Fujiwara Memorial Foundation
Organisme : Japan Society for the Promotion of Science
ID : 18K08567
Informations de copyright
© 2022 Japanese Society of Hepato-Biliary-Pancreatic Surgery.
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