Evidence map›Paper›PMID 25099756›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2014

TRPM4 channels couple purinergic receptor mechanoactivation and myogenic tone development in cerebral parenchymal arterioles.

Yao Li, Rachael L Baylie, Matthew J Tavares, Joseph E Brayden

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

37 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Pacemaking in the lymphatic system.The Journal of physiology · 2026
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  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Vascular mechanotransduction.Physiological reviews · 2023
    Review
  11. Review
  12. Article
  13. Review
  14. A Central Role for TRPM4 in CaInternational journal of molecular sciences · 2022
    Article
  15. Review
  16. Review
  17. Review
  18. Article
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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

4 authors at 1 institution in 1 country.

Yao LiDepartment of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA.
Rachael L BaylieDepartment of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA.
Matthew J TavaresDepartment of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA.
Joseph E BraydenDepartment of Pharmacology, College of Medicine, University of Vermont, Burlington, Vermont, USA.
University of Vermont · US

Funding

Impact of SAH on Parenchymal Arterioles and Neurovascular CouplingP01HL095488 · NHLBI · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI BONEV, ADRIAN · 2010 to 2014
$11.4M
NHLBI NIH HHS P01 HL095488
6 · The paper itself

Abstract

Cerebral parenchymal arterioles (PAs) have a critical role in assuring appropriate blood flow and perfusion pressure within the brain. They are unique in contrast to upstream pial arteries, as defined by their critical roles in neurovascular coupling, distinct sensitivities to chemical stimulants, and enhanced myogenic tone development. The objective of the present study was to reveal some of the unique mechanisms of myogenic tone regulation in the cerebral microcirculation. Here, we report that in vivo suppression of TRPM4 (transient receptor potential) channel expression, or inhibition of TRPM4 channels with 9-phenanthrol substantially reduced myogenic tone of isolated PAs, supporting a key role of TRPM4 channels in PA myogenic tone development. Further, downregulation of TRPM4 channels inhibited vasoconstriction induced by the specific P2Y4 and P2Y6 receptor ligands (UTPγS and UDP) by 37% and 42%, respectively. In addition, 9-phenanthrol substantially attenuated purinergic ligand-induced membrane depolarization and constriction of PAs, and inhibited ligand-evoked TRPM4 channel activation in isolated PA myocytes. In concert with our previous work showing the essential contributions of P2Y4 and P2Y6 receptors to myogenic regulation of PAs, the current results point to TRPM4 channels as an important link between mechanosensitive P2Y receptor activation and myogenic constriction of cerebral PAs.

Indexed as

VasoconstrictionAnimalsArteriolesBrainCells, CulturedDown-RegulationMaleMembrane PotentialsMuscle, Smooth, VascularPatch-Clamp TechniquesPhenanthrenesRatsRats, Sprague-DawleyReceptors, Purinergic P2YTRPM Cation Channels9-phenanthrolPhenanthrenesReceptors, Purinergic P2YTRPM4 protein, ratTRPM Cation Channels

Identifiers

PMID25099756
PMCPMC4269733
OpenAlexW2005238005

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.