Evidence map›Paper›PMID 8842014›Full record

ArticleThe Journal of physiology1996

On muscarinic control of neurogenic mucus secretion in ferret trachea.

S I Ramnarine, E B Haddad, A M Khawaja, J C Mak, D F Rogers

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

25 citing papers in PubMed, 82 citations in OpenAlex.

  1. Airway mucus in infection.Frontiers in physiology · 2026
    Review
  2. Review
  3. Review
  4. Review
  5. The mode of action of anticholinergics in asthma.The European respiratory journal · 2018
    Review
  6. Mechanisms of organophosphorus pesticide toxicity in the context of airway hyperreactivity and asthma.American journal of physiology. Lung cellular and molecular physiology · 2018
    Review
  7. Article
  8. Review
  9. Mechanisms of airway responses to esophageal acidification in cats.Journal of applied physiology (Bethesda, Md. : 1985) · 2016
    Article
  10. How does rhinovirus cause the common cold cough?BMJ open respiratory research · 2016
    Article
  11. Bencycloquidium bromide inhibits nasal hypersecretion in a rat model of allergic rhinitis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2015
    Article
  12. Review
  13. Review
  14. Pharmacogenetics of asthma controller treatment.The pharmacogenomics journal · 2013
    Article
  15. Article
  16. Muscarinic receptor antagonists: effects on pulmonary function.Handbook of experimental pharmacology · 2012
    Review
  17. Mucus secretion from individual submucosal glands of the ferret trachea.American journal of physiology. Lung cellular and molecular physiology · 2010
    Article
  18. Mucoactive drugs.European respiratory review : an official journal of the European Respiratory Society · 2010
    Review
  19. Tiotropium bromide: an update.The open respiratory medicine journal · 2009
    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

5 authors at 2 institutions in 2 countries.

S I RamnarineNational Heart & Lung Institute (Imperial College), London, UK.
E B Haddad
A M Khawaja
J C Mak
D F Rogers
Imperial College London · GBLung Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. Muscarinic receptor subtypes mediating neurogenic mucus secretion in ferret trachea were characterized in vitro and in vivo using 35SO4 as a label for secreted mucus, and the muscarinic receptor antagonists telenzepine for the M1 receptor subtype, methoctramine for the M2 subtype and 4-diphenylacetoxy-N-methylpiperidine methobromide (4-DAMP) for the M3 receptor. We also performed receptor binding and mapping studies. 2. Each muscarinic antagonist displaced [N-methyl-3H]scopolamine binding with high-affinity binding constant (KH) values of 1.9, 2.7 and 5.0 nM for telenzepine, methoctramine and 4-DAMP, respectively. Muscarinic M1 and M3 receptors localized to submucosal glands, whereas M2 receptors did not. 3. In vitro, electrical stimulation (50 V, 10 Hz, 0.5 ms for 5 min) increased 35SO4 output by 160%. Telenzepine did not inhibit the neurogenic secretory response at concentrations two-or twentyfold its KH value, nor did it inhibit secretion induced by acetylcholine (ACh). 4-DAMP inhibited neurogenic secretion by 80 and 95%, respectively, at concentrations two-and twentyfold its KH value, and also inhibited ACh-induced secretion. Methoctramine potentiated neurogenic secretion induced at 2.5 Hz (50 V, 0.5 ms for 5 min) in a dose-related (5.4-100 nM) manner with increases of 33-451% above electrically stimulated values. Methoctramine did not potentiate secretion induced at 10 Hz and did not have any effect on ACh-induced secretion. 4. In vivo, vagal stimulation (10 V, 10 Hz, 2 ms for 8 min) increased output of 35SO4 by approximately 120%. Telenzepine had no significant effect on neurogenic secretion. Methoctramine approximately doubled the stimulated response, whereas 4-DAMP abolished the stimulated secretory response. 5. We conclude that in ferret trachea, cholinergic nerve stimulation increases mucus secretion via muscarinic M3 receptors on the submucosal glands. The magnitude of the secretory response is regulated by neuronal M2 muscarinic receptors. The muscarinic M1 receptors localized to the submucosal glands do not appear to be involved with mucus secretion.

Indexed as

AnimalsDiaminesElectric StimulationFerretsIn Vitro TechniquesMaleMucusMuscarinic AntagonistsMuscle, SmoothPiperidinesPirenzepineQuinuclidinyl BenzilateRadioligand AssayReceptors, MuscarinicScopolamineSulfates4-diphenylacetoxy-1,1-dimethylpiperidiniumDiaminesmethoctramineMuscarinic AntagonistsPiperidinesPirenzepineQuinuclidinyl BenzilateReceptors, MuscarinicScopolamineSulfatesSulfur RadioisotopestelenzepineTritium

Identifiers

PMID8842014
PMCPMC1160657
OpenAlexW2073083707

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.