Evidence map›Paper›PMID 22371476›Full record

ArticleThe Journal of physiology2012

P2Y1 purinoreceptors are fundamental to inhibitory motor control of murine colonic excitability and transit.

Sung Jin Hwang, Peter J Blair, Leonie Durnin, Violeta Mutafova-Yambolieva, Kenton M Sanders, Sean M Ward

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
10.9field-weighted citation impact, top 1% 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

76 citing papers in PubMed, 110 citations in OpenAlex.

  1. Advances in nucleotide-based P2Y₁ antagonism: implications for cardiovascular therapeutics.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2026
    Review
  2. Disruption of gastrointestinal PDGFRαAmerican journal of physiology. Gastrointestinal and liver physiology · 2026
    Article
  3. Article
  4. Purinergic P2YPurinergic signalling · 2025
    Article
  5. Functional roles of interstitial cells of Cajal in the GI tract of rats.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Article
  6. Limosilactobacillus reuteri promotes the expression and secretion of enteroendocrine- and enterocyte-derived hormones.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. bioRxiv : the preprint server for biology · 2024
    Article
  11. CaPhysiological reviews · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Activation of P2Y1R impedes intestinal mucosa repair during colitis.International journal of biological sciences · 2023
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. CaAdvances in experimental medicine and biology · 2022
    Article

16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Sung Jin HwangDepartment of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA.
Peter J Blair
Leonie Durnin
Violeta Mutafova-Yambolieva
Kenton M Sanders
Sean M Ward
University of Nevada, Reno · US

Funding

Tissue, Cell and Tissue Culture CoreP01DK041315 · NIDDK · UNIVERSITY OF NEVADA RENO · PI KEEF, KATHLEEN D · 1989 to 2018
$26.3M
NIDDK NIH HHS P01 DK041315NIDDK NIH HHS P01 DK41315-22
6 · The paper itself

Abstract

Activation of enteric inhibitory motor neurons causes inhibitory junctional potentials (IJPs) and muscle relaxation in mammalian gastrointestinal (GI) muscles, including humans. IJPs in many GI muscles are bi-phasic with a fast initial hyperpolarization (fIJP) due to release of a purine neurotransmitter and a slower hyperpolarization component (sIJP) due to release of nitric oxide. We sought to characterize the nature of the post-junctional receptor(s) involved in transducing purinergic neural inputs in the murine colon using mice with genetically deactivated P2ry1. Wild-type mice had characteristic biphasic IJPs and pharmacological dissection confirmed that the fIJP was purinergic and the sIJP was nitrergic. The fIJP was completely absent in P2ry1(−/−) mice and the P2Y1 receptor antagonist MRS2500 had no effect on electrical activity or responses to electrical field stimulation of intrinsic nerves in these mice. Contractile experiments confirmed that purinergic responses were abolished in P2ry1(−/−) mice. Picospritzing of neurotransmitter candidates (ATP and its primary metabolite, ADP) and β-NAD (and its primary metabolite, ADP-ribose, ADPR) caused transient hyperpolarization responses in wild-type colons, but responses to β-NAD and ADPR were completely abolished in P2ry1(−/−) mice. Hyperpolarization and relaxation responses to ATP and ADP were retained in colons of P2ry1(−/−) mice. Video imaging revealed that transit of fecal pellets was significantly delayed in colons from P2ry1(−/−) mice. These data demonstrate the importance of purinergic neurotransmission in regulating colonic motility and confirm pharmacological experiments suggesting that purinergic neurotransmission is mediated via P2Y1 receptors.

Indexed as

AnimalsColonElectric StimulationGastrointestinal MotilityGastrointestinal TransitMaleMembrane PotentialsMiceMice, Inbred C57BLMotor NeuronsMuscle RelaxationMuscle, SmoothNeuromuscular JunctionNeurotransmitter AgentsNitric OxidePurinergic P2 Receptor AntagonistsNeurotransmitter AgentsNitric OxidepurinePurinergic P2 Receptor AntagonistsPurinesReceptors, Purinergic P2Y1

Identifiers

PMID22371476
PMCPMC3573315
OpenAlexW1530088271

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.