Evidence map›Paper›PMID 21457230›Full record

ArticleBritish journal of pharmacology2011

Endogenous peptide YY and neuropeptide Y inhibit colonic ion transport, contractility and transit differentially via Y₁ and Y₂ receptors.

I R Tough, S Forbes, R Tolhurst, M Ellis, H Herzog, J C Bornstein, H M Cox

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

40 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Gut neuropeptide involvement in Parkinson's disease.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. The Aging Enteric Nervous System.International journal of molecular sciences · 2023
    Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Contributions of bile acids to gastrointestinal physiology as receptor agonists and modifiers of ion channels.American journal of physiology. Gastrointestinal and liver physiology · 2022
    Article
  16. Article
  17. Article
  18. Article
  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

7 authors at 3 institutions in 2 countries.

I R ToughKing's College London, Wolfson Centre for Age-Related Diseases, Guy's Campus, London, UK.
S Forbes
R Tolhurst
M Ellis
H Herzog
J C Bornstein
H M Cox
King's College London · GBUniversity of Melbourne · AUGarvan Institute of Medical Research · AU

Funding

Biotechnology and Biological Sciences Research Council BB/E527098/1Wellcome Trust 079291/Z/06/Z
6 · The paper itself

Abstract

background and purposePeptide YY (PYY) and neuropeptide Y (NPY) activate Y receptors, targets under consideration as treatments for diarrhoea and other intestinal disorders. We investigated the gastrointestinal consequences of selective PYY or NPY ablation on mucosal ion transport, smooth muscle activity and transit using wild-type, single and double peptide knockout mice, comparing mucosal responses with those from human colon. EXPERIMENTAL APPROACH: Mucosae were pretreated with a Y₁ (BIBO3304) or Y₂ (BIIE0246) receptor antagonist and changes in short-circuit current recorded. Colonic transit and colonic migrating motor complexes (CMMCs) were assessed in vitro and upper gastrointestinal and colonic transit measured in vivo. KEY

resultsY receptor antagonists revealed tonic Y₁ and Y₂ receptor-mediated antisecretory effects in human and wild-type mouse colon mucosae. In both, Y₁ tone was epithelial while Y₂ tone was neuronal. Y₁ tone was reduced 90% in PYY⁻/⁻ mucosa but unchanged in NPY⁻/⁻ tissue. Y₂ tone was partially reduced in NPY⁻/⁻ or PYY⁻/⁻ mucosae and abolished in tetrodotoxin-pretreated PYY⁻/⁻ tissue. Y₁ and Y₂ tone were absent in NPYPYY⁻/⁻ tissue. Colonic transit was inhibited by Y₁ blockade and increased by Y₂ antagonism indicating tonic Y₁ excitation and Y₂ inhibition respectively. Upper GI transit was increased in PYY⁻/⁻ mice only. Y₂ blockade reduced CMMC frequency in isolated mouse colon. CONCLUSIONS AND IMPLICATIONS: Endogenous PYY and NPY induced significant mucosal antisecretory tone mediated by Y₁ and Y₂ receptors, via similar mechanisms in human and mouse colon mucosa. Both peptides contributed to tonic Y₂-receptor-mediated inhibition of colonic transit in vitro but only PYY attenuated upper GI transit.

Indexed as

AgedAnimalsColonFemaleGastrointestinal TransitHumansIntestinal MucosaIon TransportMaleMiceMice, 129 StrainMice, Inbred C57BLMice, KnockoutMuscle ContractionMuscle, SmoothNeuropeptide YNeuropeptide Yneuropeptide Y2 receptorneuropeptide Y-Y1 receptorPeptide YYReceptors, Neuropeptide Y

Identifiers

PMID21457230
PMCPMC3188896
OpenAlexW2039558707

What OpenQuestion holds

Textmetadata
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.