Evidence map›Paper›PMID 12972630›Full record

ArticleThe Journal of physiology2003

Synergism between inositol phosphates and diacylglycerol on native TRPC6-like channels in rabbit portal vein myocytes.

A P Albert, W A Large

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

42 citing papers in PubMed, 82 citations in OpenAlex.

  1. Vascular mechanotransduction.Physiological reviews · 2023
    Review
  2. Review
  3. PIPProceedings of the National Academy of Sciences of the United States of America · 2020
    Review
  4. Review
  5. Review
  6. Calcium signals that determine vascular resistance.Wiley interdisciplinary reviews. Systems biology and medicine · 2019
    Review
  7. A Closely Associated Phospholipase C Regulates Cation Channel Function through Phosphoinositide Hydrolysis.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  8. Dual action of the GαScientific reports · 2018
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Inositol trisphosphate receptors in smooth muscle cells.American journal of physiology. Heart and circulatory physiology · 2012
    Review
  17. Review
  18. TRPC channels in smooth muscle cells.Frontiers in bioscience (Landmark edition) · 2010
    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

2 authors at 1 institution in 1 country.

A P AlbertDepartment of Basic Medical Sciences, Pharmacology and Clinical Pharmacology, St George's Hospital Medical School, Cranmer Terrace, London SW17 0RE, UK. aalbert@sghms.ac.uk
W A Large
St George's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In rabbit portal vein myocytes noradrenaline activates a non-selective cation current (Icat) which involves a transient receptor potential protein (TRPC6). Previously we have shown that the diaylglycerol (DAG) analogue 1-oleoyl-2-acetyl-sn-glycerol (OAG) stimulates Icat via a protein kinase C (PKC)-independent mechanism, and in the present study we have investigated the interaction between inositol phosphates (InsPs) and OAG on Icat. With whole-cell recording of Icat from freshly isolated rabbit portal vein myocytes the amplitude and rate of activation of noradrenaline-evoked Icat were much greater than those of OAG-induced Icat. Inclusion of inositol 1,4,5-trisphosphate (Ins(1,4,5)P3) in the pipette solution did not evoke Icat but greatly potentiated the amplitude and rate of activation of OAG-induced Icat. With isolated outside-out patches Ins(1,4,5)P3 markedly increased the rate of activation and the open probability of OAG-evoked channel activity, with no change in unitary conductance, channel mean open times or burst durations. The effects of Ins(1,4,5)P3 were mimicked by Ins(2,4,5)P3, 3-F-Ins(1,4,5)P3 and Ins(1,4)P2 but not by Ins(1,3,4,5)P4 and the potentiating effects of InsPs were not inhibited by heparin. Therefore it is concluded that both DAG and InsPs are necessary for full activation of Icat by noradrenaline and the effect of InsPs is via a heparin-insensitive mechanism and represents a novel action of InsPs.

Indexed as

AnimalsCalcium ChannelsCationsDiglyceridesDrug SynergismElectric ConductivityInositol 1,4,5-TrisphosphateIon ChannelsMuscle, Smooth, VascularMyocytes, Smooth MuscleNorepinephrinePortal VeinRabbits1-oleoyl-2-acetylglycerolCalcium ChannelsCationsDiglyceridesInositol 1,4,5-TrisphosphateIon ChannelsNorepinephrine

Identifiers

PMID12972630
PMCPMC2343454
OpenAlexW2147461805

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.