Evidence map›Paper›PMID 21964407›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2012

Kv7 potassium channels in airway smooth muscle cells: signal transduction intermediates and pharmacological targets for bronchodilator therapy.

Lioubov I Brueggemann, Priyanka P Kakad, Robert B Love, Julian Solway, Maria L Dowell, Leanne L Cribbs, Kenneth L Byron

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

38 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Chemical modulation of Kv7 potassium channels.RSC medicinal chemistry · 2021
    Review
  8. Kv7 Channels and Excitability Disorders.Handbook of experimental pharmacology · 2021
    Article
  9. Review
  10. Review
  11. Review
  12. Detrusor Smooth Muscle KFrontiers in physiology · 2020
    Review
  13. Review
  14. Article
  15. Kv7 Channels in Lung Diseases.Frontiers in physiology · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. KThe Journal of pharmacology and experimental therapeutics · 2018
    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 1 country.

Lioubov I BrueggemannDepartment of Molecular Pharmacology & Therapeutics, Loyola University Chicago, Maywood, IL 60153, USA.
Priyanka P Kakad
Robert B Love
Julian Solway
Maria L Dowell
Leanne L Cribbs
Kenneth L Byron
Loyola University Chicago · USPulmonary and Critical Care Associates · USUniversity of Chicago · US

Funding

KCNQ Channels and Vasoconstrictor Signal TransductionR01HL089564 · NHLBI · LOYOLA UNIVERSITY CHICAGO · PI BYRON, KENNETH L · 2009 to 2013
$1.9M
NHLBI NIH HHS R01 HL089564
6 · The paper itself

Abstract

Expression and function of Kv7 (KCNQ) voltage-activated potassium channels in guinea pig and human airway smooth muscle cells (ASMCs) were investigated by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR), patch-clamp electrophysiology, and precision-cut lung slices. qRT-PCR revealed expression of multiple KCNQ genes in both guinea pig and human ASMCs. Currents with electrophysiological and pharmacological characteristics of Kv7 currents were measured in freshly isolated guinea pig and human ASMCs. In guinea pig ASMCs, Kv7 currents were significantly suppressed by application of the bronchoconstrictor agonists methacholine (100 nM) or histamine (30 μM), but current amplitudes were restored by addition of a Kv7 channel activator, flupirtine (10 μM). Kv7 currents in guinea pig ASMCs were also significantly enhanced by another Kv7.2-7.5 channel activator, retigabine, and by celecoxib and 2,5-dimethyl celecoxib. In precision-cut human lung slices, constriction of airways by histamine was significantly reduced in the presence of flupirtine. Kv7 currents in both guinea pig and human ASMCs were inhibited by the Kv7 channel blocker XE991. In human lung slices, XE991 induced robust airway constriction, which was completely reversed by addition of the calcium channel blocker verapamil. These findings suggest that Kv7 channels in ASMCs play an essential role in the regulation of airway diameter and may be targeted pharmacologically to relieve airway hyperconstriction induced by elevated concentrations of bronchoconstrictor agonists.

Indexed as

Bronchodilator AgentsKCNQ Potassium ChannelsMyocytes, Smooth MuscleAminopyridinesAnimalsAnthracenesBronchoconstrictionCalcium Channel BlockersCarbamatesCelecoxibGuinea PigsHistamineHumansMaleMethacholine ChloridePatch-Clamp Techniques10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenoneAminopyridinesAnthracenesBronchodilator AgentsCalcium Channel BlockersCarbamatesCelecoxibezogabineflupirtineHistamineKCNQ Potassium ChannelsMethacholine ChloridePhenylenediaminesPyrazolesSulfonamidesVerapamil

Identifiers

PMID21964407
PMCPMC3349372
OpenAlexW2168479242

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.