Cited by 452Gut microbiota and healthAnimal Nutrition and PhysiologyPolyamine Metabolism and Applications

Effects of amino acid-derived luminal metabolites on the colonic epithelium and physiopathological consequences

Blachier, F., Mariotti, F., Huneau, J. F., Tomé, D.·2007·Amino Acids

Abstract

Depending on the amount of alimentary proteins, between 6 and 18 g nitrogenous material per day enter the large intestine lumen through the ileocaecal junction. This material is used as substrates by the flora resulting eventually in the presence of a complex mixture of metabolites including ammonia, hydrogen sulfide, short and branched-chain fatty acids, amines; phenolic, indolic and N-nitroso compounds. The beneficial versus deleterious effects of these compounds on the colonic epithelium depend on parameters such as their luminal concentrations, the duration of the colonic stasis, the detoxication capacity of epithelial cells in response to increase of metabolite concentrations, the cellular metabolic utilization of these metabolites as well as their effects on colonocyte intermediary and oxidative metabolism. Furthermore, the effects of metabolites on electrolyte movements through the colonic epithelium must as well be taken into consideration for such an evaluation. The situation is further complicated by the fact that other non-nitrogenous compounds are believed to interfere with these various phenomenons. Finally, the pathological consequences of the presence of excessive concentrations of these compounds are related to the short- and, most important, long-term effects of these compounds on the rapid colonic epithelium renewing and homeostasis.

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Registry

Crossref · 10.1007/s00726-006-0477-9

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273 of 273 references verified0 citation errors · 0 not checkable

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  • Microbial-derived BCAAs include valerate, isobutyrate, and isovalerate, and these bacterial metabolites influence epithelial physiology and the mucosal immune system of the host.

    “Microbial-derived BCAAs include valerate, isobutyrate, and isovalerate.Notably, these bacterial metabolites have been shown to influence epithelial physiology and the mucosal immune system of the host (Blachier et al., 2007;Schaible and Kaufmann, 2005).”

    From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Blachier et al., 2007

  • Most host-produced urea is hydrolyzed in the lumen of the large intestine into NH3 and nitrogen through bacterial urease activity.

    “Most of host-produced urea is hydrolyzed in the lumen of the large intestine into NH3 and nitrogen through bacterial urease activity [131].”
  • NH3 can be used by bacteria for their own metabolism and protein synthesis.

    “NH3 can be used by the bacteria for their own metabolism and protein synthesis [131].”
  • Specific branched-chain amino acids (valerate, isobutyrate, and isovalerate) influence epithelial and mucosal homeostasis.

    “The GM produces higher proportions of specific BCAAs (valerate, isobutyrate, and isovalerate) relative to other amino acids, which have been shown to influence epithelial and mucosal homeostasis (332).”
  • The gut microbiota produces higher proportions of specific branched-chain amino acids (valerate, isobutyrate, and isovalerate) relative to other amino acids.

    “The GM produces higher proportions of specific BCAAs (valerate, isobutyrate, and isovalerate) relative to other amino acids, which have been shown to influence epithelial and mucosal homeostasis (332).”

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Authors
Blachier, F., Mariotti, F., Huneau, J. F., & Tomé, D.
Affiliations
  • Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
  • Physiologie de la Nutrition et du Comportement Alimentaire (FR)
Venue
Amino Acids
Published
2006-12-06
Volume
33
Issue
4
Pages
547-562
ISSN
  • 0939-4451 (ISSN-L)
  • 1438-2199
OpenAlex
W1975034176
Cited by
452
References
274
Citations by year
2026: 19 · 2025: 25 · 2024: 43 · 2023: 35 · 2022: 41 · 2021: 34 · 2020: 32 · 2019: 36 · 2018: 36 · 2017: 21 · 2016: 18 · 2015: 27 · 2014: 11 · 2013: 12 · 2012: 17
FWCI
0.48
Type
journal article
Language
en
Open access
closed
Locations
  • Amino Acids (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Polyamine Metabolism and Applications
Keywords
colonic epithelium, colonic microbiota, ammonia, hydrogen sulfide, short-chain fatty acids, branched-chain fatty acids, amines, phenolic compounds, N-nitroso compounds, colonic stasis, oxidative metabolism, electrolyte transport, colonic homeostasis, colon carcinogenesis
MeSH terms
Amino Acids, Ammonia, Animals, Bacteria, Colon, Colonic Diseases, Dietary Proteins, Digestion, Epithelial Cells, Fatty Acids, Humans, Hydrogen Sulfide, Intestinal Mucosa, Intestine, Large, Nitroso Compounds, Polyamines, Hydroxybenzoates

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