Evidence map›Paper›PMID 11498508›Full record

ArticleBritish journal of pharmacology2001

Role of nitric oxide and superoxide in allergen-induced airway hyperreactivity after the late asthmatic reaction in guinea-pigs.

J de Boer, H Meurs, L Flendrig, M Koopal, J Zaagsma

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.0field-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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Arginine Therapy for Lung Diseases.Frontiers in pharmacology · 2021
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  9. Arginase in retinopathy.Progress in retinal and eye research · 2013
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  10. Article
  11. Oxidative stress in asthma.The World Allergy Organization journal · 2011
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Arginase and pulmonary diseases.Naunyn-Schmiedeberg's archives of pharmacology · 2008
    Review
  17. 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.

J de BoerDepartment of Molecular Pharmacology, University Centre for Pharmacy, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
H Meurs
L Flendrig
M Koopal
J Zaagsma
University of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. In the present study, the roles of nitric oxide (NO) and superoxide anions (O2(-)) in allergen-induced airway hyperreactivity (AHR) after the late asthmatic reaction (LAR) were investigated ex vivo, by examining the effects of the NO synthase inhibitor N(omega)-nitro-L-arginine methyl ester (L-NAME) and superoxide dismutase (SOD) on the responsiveness to methacholine of isolated perfused guinea-pig tracheae from unchallenged (control) animals and from animals 24 h after ovalbumin challenge. 2. At 24 h after allergen challenge, the animals developed AHR in vivo, as indicated by a mean 2.63 +/- 0.54 fold (P < 0.05) increase in sensitivity to histamine inhalation. 3. Compared to unchallenged controls, tracheal preparations from the ovalbumin-challenged guinea-pigs displayed a significant 1.8 fold (P < 0.01) increase in the maximal response (E(max)) to methacholine, both after intraluminal (IL) and extraluminal (EL) administration of the agonist. No changes were observed in the sensitivity (pEC(50)) to the agonist. Consequently, the DeltapEC(50) (EL-IL), as a measure of epithelial integrity, was unchanged. 4. In the presence of L-NAME (100 microM, IL), tracheae from control guinea-pigs showed a 1.6 fold (P < 0.05) increase in the E(max) of IL methacholine. By contrast, the E(max) of IL methacholine was significantly decreased in the presence of 100 u ml(-1) EL SOD (54% of control, P < 0.01). 5. Remarkably, the increased responsiveness to IL methacholine at 24 h after allergen challenge was reversed by L-NAME to control (P < 0.01), and a similar effect was observed with SOD (P < 0.01). 6. The results indicate that both NO and O2(-) are involved in the tracheal hyperreactivity to methacholine after the LAR, possibly by promoting airway smooth muscle contraction through the formation of peroxynitrite.

Indexed as

AllergensAnimalsAsthmaBronchial HyperreactivityBronchoconstrictor AgentsGuinea PigsHistamineMethacholine ChlorideNG-Nitroarginine Methyl EsterNitric OxideOvalbuminPerfusionRespirationSuperoxide DismutaseSuperoxidesTracheaAllergensBronchoconstrictor AgentsHistamineMethacholine ChlorideNG-Nitroarginine Methyl EsterNitric OxideOvalbuminSuperoxide DismutaseSuperoxides

Identifiers

PMID11498508
PMCPMC1621143
OpenAlexW2025217626

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.