Cited by 305Gut microbiota and healthDialysis and Renal Disease ManagementGastrointestinal motility and disorders

The gut–kidney axis

Evenepoel, Pieter, Poesen, Ruben, Meijers, Björn·2017·Pediatric Nephrology

Abstract

The host-gut microbiota interaction has been the focus of increasing interest in recent years. It has been determined that this complex interaction is not only essential to many aspects of normal "mammalian" physiology but that it may also contribute to a multitude of ailments, from the obvious case of inflammatory bowel disease to (complex) diseases residing in organs outside the gut. An increasing body of evidence indicates that crosstalk between host and microbiota is pathophysiologically relevant in patients with chronic kidney disease (CKD). Interactions are bidirectional; on the one hand, uremia affects both the composition and metabolism of the gut microbiota and, on the other hand, important uremic toxins originate from microbial metabolism. In addition, gut dysbiosis may induce a disruption of the epithelial barrier, ultimately resulting in increased exposure of the host to endotoxins. Due to dietary restrictions and gastrointestinal dysfunctions, microbial metabolism shifts to a predominantly proteolytic fermentation pattern in CKD. Indoxyl sulfate and p-cresyl sulfate, both end-products of protein fermentation, and trimethylamine-N-oxide, an end-product of microbial choline and carnitine metabolism, are prototypes of uremic toxins originating from microbial metabolism. The vascular and renal toxicity of these co-metabolites has been demonstrated extensively in experimental and clinical studies. These co-metabolites are an appealing target for adjuvant therapy in CKD. Treatment options include dietary therapy, prebiotics, probiotics and host and bacterial enzyme inhibitors. Final proof of the concept should come from randomized controlled and adequately powered intervention studies.

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Crossref · 10.1007/s00467-016-3527-x

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Authors
Evenepoel, P., Poesen, R., & Meijers, B.
Affiliations
Universitair Ziekenhuis Leuven (BE)
Corresponding author
Evenepoel, Pieter
Venue
Pediatric Nephrology
Published
2016-11-15
Volume
32
Issue
11
Pages
2005-2014
ISSN
  • 0931-041X (ISSN-L)
  • 1432-198X
OpenAlex
W2552030271
Cited by
305
References
95
Citations by year
2026: 38 · 2025: 36 · 2024: 44 · 2023: 44 · 2022: 33 · 2021: 39 · 2020: 32 · 2019: 16 · 2018: 19 · 2017: 4
FWCI
1.17
Type
journal article
Language
en
Open access
closed
Locations
  • Pediatric Nephrology (publishedVersion)
  • PubMed (publishedVersion)
  • Lirias (KU Leuven) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Nephrology › Dialysis and Renal Disease Management
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
gut-kidney axis, gut microbiota, chronic kidney disease, uremic toxins, indoxyl sulfate, p-cresyl sulfate, trimethylamine N-oxide, gut dysbiosis, endotoxemia, epithelial barrier function, prebiotics, probiotics, dietary therapy, enzyme inhibitors, adjuvant therapy
MeSH terms
Gastrointestinal Microbiome, Animals, Humans, Kidney, Uremia, Gastrointestinal Tract, Renal Insufficiency, Chronic

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