Evidence map›Paper›PMID 30136343›Full record

ArticleNeurogastroenterology and motility2018

Signaling of free fatty acid receptors 2 and 3 differs in colonic mucosa following selective agonism or coagonism by luminal propionate.

Iain R Tough, Sarah Forbes, Helen M Cox

Open access · hybridAbstract read
In one paragraph

Article in Neurogastroenterology and motility, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.3field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 35 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Nutrients · 2023
    Article
  8. Review
  9. The Role of Short Chain Fatty Acids in Irritable Bowel Syndrome.Journal of neurogastroenterology and motility · 2022
    Review
  10. Review
  11. Intestinal secretory mechanisms and diarrhea.American journal of physiology. Gastrointestinal and liver physiology · 2022
    Review
  12. Short-Chain Fatty Acid Receptors and Cardiovascular Function.International journal of molecular sciences · 2022
    Review
  13. Review
  14. Metabolic and inflammatory functions of short-chain fatty acid receptors.Current opinion in endocrine and metabolic research · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Iain R ToughKing's College London, Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, London, UK.ORCID 0000-0002-4829-9369
Sarah ForbesKing's College London, Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, London, UK.
Helen M CoxKing's College London, Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neuroscience, London, UK.ORCID 0000-0001-9024-1497
King's College London · GB

Funding

BBSRC BB/N006763/1Bowel and Cancer Research Charity
6 · The paper itself

Abstract

backgroundPropionate exhibits affinity for free fatty acid receptor 2 (FFA2, formerly GPR43) and FFA3 (GPR41). These two G protein-coupled receptors (GPCRs) are expressed by enteroendocrine L cells that contain anorectic peptide YY (PYY) and glucagon-like peptide 1 (GLP-1), while FFA3 is also expressed by enteric neurons. Few studies have investigated the individual roles of FFA2 and FFA3 in propionate's gastrointestinal (GI) effects. Here, we compared FFA2, FFA3, and propionate mucosal responses utilizing selective ligands including an FFA3 antagonist, in mouse and human colonic mucosa.

methodsVectorial ion transport was measured in native colonic preparations from normal mouse and human colon with intact submucosal innervation. Endogenous fecal pellet propulsion was monitored in colons isolated from wild-type (WT) and PYY-/- mice. KEY

resultsFFA2 and FFA3 signaling differed significantly. FFA2 agonism involved endogenous L cell-derived PYY and was glucose dependent, while FFA3 agonism was independent of PYY and glucose, but required submucosal enteric neurons for activity. Tonic FFA3 activity was observed in mouse and human colon mucosa. Apical propionate responses were a combination of FFA2-PYY mediation and FFA3 neuronal GLP-1- and CGRP-dependent signaling in mouse ascending colon mucosa. Propionate also slowed WT and PYY-/- colonic transit, and this effect was blocked by a GLP-1 receptor antagonist. CONCLUSIONS & INFERENCES: We conclude that luminal propionate costimulates FFA2 and FFA3 pathways, reducing anion secretion and slowing colonic motility; FFA2 via PYY mediation and FFA3 signaling by activation of enteric sensory neurons.

Indexed as

AnimalsColonFemaleHumansIntestinal MucosaMaleMiceMice, Inbred C57BLMiddle AgedPropionatesReceptors, Cell SurfaceReceptors, G-Protein-CoupledSignal TransductionFFAR2 protein, humanFfar2 protein, mouseFFAR3 protein, humanFFAR3 protein, mousePropionatesReceptors, Cell SurfaceReceptors, G-Protein-Coupledenteric submucosal neuronsenteroendocrine L cellsFFA2 and FFA3human colonmouse colonpropionate

Identifiers

PMID30136343
PMCPMC6282569
OpenAlexW2888131764

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.