Evidence map›Paper›PMID 19179622›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2009

Lysophosphatidyl choline modulates mechanosensitive L-type Ca2+ current in circular smooth muscle cells from human jejunum.

Robert E Kraichely, Peter R Strege, Michael G Sarr, Michael L Kendrick, Gianrico Farrugia

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Capsaicin as an amphipathic modulator of NaChannels (Austin, Tex.) · 2022
    Article
  5. Gut feelings: mechanosensing in the gastrointestinal tract.Nature reviews. Gastroenterology & hepatology · 2022
    Review
  6. Mechanotransduction in gastrointestinal smooth muscle cells: role of mechanosensitive ion channels.American journal of physiology. Gastrointestinal and liver physiology · 2021
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Recent advances in small bowel diseases: Part II.World journal of gastroenterology · 2012
    Review
  17. Article
  18. Article
  19. Hydrogen sulfide is a partially redox-independent activator of the human jejunum Na+ channel, Nav1.5.American journal of physiology. Gastrointestinal and liver physiology · 2011
    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

5 authors at 1 institution in 1 country.

Robert E KraichelyEnteric Neuroscience Program, Miles and Shirley Fiterman Center for Digestive Diseases, Mayo Clinic College of Medicine, 200 First St. SW, Rochester, MN 55905, USA.
Peter R Strege
Michael G Sarr
Michael L Kendrick
Gianrico Farrugia
Mayo Clinic · US

Funding

MECHANOTRANSDUCTION IN INTESTINAL SMOOTH MUSCLE CELLSR01DK052766 · NIDDK · MAYO CLINIC ROCHESTER · PI BEYDER, ARTHUR, FARRUGIA, GIANRICO · 1997 to 2025
$8.3M
CALCIUM DYNAMICS IN INTERSTITIAL CELLS OF CAJALR01DK057061 · NIDDK · MAYO CLINIC ROCHESTER · PI GIANRICO FARRUGIA, Tamas Ordog · 2000 to 2026
$8.2M
NIDDK NIH HHS DK-52766NIDDK NIH HHS DK-57061
6 · The paper itself

Abstract

The L-type Ca2+ channel expressed in gastrointestinal smooth muscle is mechanosensitive. Direct membrane stretch and shear stress result in increased Ca2+ entry into the cell. The mechanism for mechanosensitivity is not known, and mechanosensitivity is not dependent on an intact cytoskeleton. The aim of this study was to determine whether L-type Ca2+ channel mechanosensitivity is dependent on tension in the lipid bilayer in human jejunal circular layer myocytes. Whole cell currents were recorded in the amphotericin-perforated-patch configuration, and lysophosphatidyl choline (LPC), lysophosphatidic acid (LPA), and choline were used to alter differentially the tension in the lipid bilayer. Shear stress (perfusion at 10 ml/min) was used to mechanostimulate L-type Ca2+ channels. The increase in L-type Ca2+ current induced by shear stress was greater in the presence of LPC (large head-to-tail proportions), but not LPA or choline, than in the control perfusion. The increased peak Ca2+ current also did not return to baseline levels as in control conditions. Furthermore, steady-state inactivation kinetics were altered in the presence of LPC, leading to a change in window current. These findings suggest that changes in tension in the plasmalemmal membrane can be transmitted to the mechanosensitive L-type Ca2+ channel, leading to altered activity and Ca2+ entry in the human jejunal circular layer myocyte.

Indexed as

Action PotentialsCalcium Channels, L-TypeHumansJejunumLysophosphatidylcholinesLysophospholipidsMechanotransduction, CellularModels, MolecularMyocytes, Smooth MuscleCalcium Channels, L-Typelysophosphatidic acidLysophosphatidylcholinesLysophospholipids

Identifiers

PMID19179622
PMCPMC2670668
OpenAlexW2034753508

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.