Evidence map›Paper›PMID 9022086›Full record

ArticleThe Journal of clinical investigation1997

Activation of large conductance potassium channels inhibits the afferent and efferent function of airway sensory nerves in the guinea pig.

A J Fox, P J Barnes, P Venkatesan, M G Belvisi

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.0field-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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 111 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Peripheral neural circuitry in cough.Current opinion in pharmacology · 2015
    Review
  5. Antitussive drugs--past, present, and future.Pharmacological reviews · 2014
    Review
  6. Article
  7. Article
  8. Review
  9. TRPA1 agonists evoke coughing in guinea pig and human volunteers.American journal of respiratory and critical care medicine · 2009
    Article
  10. Central regulation of the cough reflex: therapeutic implications.Pulmonary pharmacology & therapeutics · 2009
    Review
  11. Review
  12. Sensory nerves and airway irritability.Handbook of experimental pharmacology · 2009
    Review
  13. Article
  14. Review
  15. Encoding of the cough reflex.Pulmonary pharmacology & therapeutics · 2007
    Review
  16. Chronic cough due to occupational factors.Journal of occupational medicine and toxicology (London, England) · 2006
    Article
  17. Article
  18. Review
  19. Article
  20. Review
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 2 institutions in 2 countries.

A J FoxThoracic Medicine, Imperial College School of Medicine at the National Heart and Lung Institute, London, United Kingdom.
P J Barnes
P Venkatesan
M G Belvisi
Imperial College London · GBThoracic Surgery Foundation · US

Funding

Wellcome Trust
6 · The paper itself

Abstract

Sensory nerves play an important role in airway disease by mediating central reflexes such as cough, and local axon reflexes resulting in the peripheral release of neuropeptides. We have tested whether the benzimidazolone compound, NS1619, an opener of large conductance calcium-activated potassium (BK Ca) channels, inhibits the activity of sensory fibers, and central and local airway reflexes in guinea pig airways. In in vitro single fiber recording experiments, NS1619 applied to identified receptive fields in the trachea inhibited the firing of A(delta)-fibers evoked by hypertonic saline and distilled water, and bradykinin-evoked firing of C-fibers. Electrically evoked nonadrenergic noncholinergic contractions of isolated bronchi mediated by the release of neurokinin A (NKA) from C-fibers, but not those elicited by exogenous NKA, were inhibited by NS1619. These effects of NS1619 were prevented by iberiotoxin, a selective blocker of BK Ca channels. In conscious guinea pigs, cough evoked by aerosolized citric acid was also inhibited by NS1619. These data show that BK Ca channel activation inhibits sensory nerve activity, resulting in a reduction of both afferent and efferent function. BK Ca channel openers may therefore be of potential benefit in reducing neurogenic inflammation and central reflexes seen during inflammatory conditions of the airways, and may represent a new class of antitussive drug.

Indexed as

Afferent PathwaysAnimalsBenzimidazolesBradykininBronchiBronchial Provocation TestsCitric AcidCoughEfferent PathwaysGanglia, SensoryGuinea PigsInflammationIn Vitro TechniquesMaleNeurokinin APeptidesBenzimidazolesBradykininCitric AcidiberiotoxinNeurokinin ANS 1619PeptidesPotassium Channels

Identifiers

PMID9022086
PMCPMC507826
OpenAlexW2024081600

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.