Evidence map›Paper›PMID 10455261›Full record

ArticleBritish journal of pharmacology1999

Involvement of cysteinyl leukotrienes in airway smooth muscle cell DNA synthesis after repeated allergen exposure in sensitized Brown Norway rats.

M Salmon, D A Walsh, T J Huang, P J Barnes, T B Leonard, D W Hay, K F Chung

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 1999. 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
2.3field-weighted citation impact, top 12% 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, 86 citations in OpenAlex.

  1. Article
  2. Article
  3. Development of Adaptive Immunity and Its Role in Lung Remodeling.Advances in experimental medicine and biology · 2023
    Article
  4. Article
  5. Exercise and Asthma.Advances in experimental medicine and biology · 2020
    Review
  6. Article
  7. Leukotriene receptors as potential therapeutic targets.The Journal of clinical investigation · 2018
    Review
  8. The Effects ofIranian journal of pharmaceutical research : IJPR · 2018
    Article
  9. The effect of hydro-ethanolic extract ofIranian journal of basic medical sciences · 2017
    Article
  10. The Effect ofFrontiers in pharmacology · 2017
    Article
  11. Article
  12. Review
  13. Genetic influences on asthma susceptibility in the developing lung.American journal of respiratory cell and molecular biology · 2010
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Airway remodeling: lessons from animal models.Clinical reviews in allergy & immunology · 2004
    Review
  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

7 authors at 3 institutions in 2 countries.

M SalmonThoracic Medicine, Imperial College School of Medicine at the National Heart and Lung Institute, London, UK.
D A Walsh
T J Huang
P J Barnes
T B Leonard
D W Hay
K F Chung
Lung Institute · USNew Frontier · USNottingham City Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Airway smooth muscle thickening is a characteristic feature of airway wall remodelling in chronic asthma. We have investigated the role of the leukotrienes in airway smooth muscle (ASM) and epithelial cell DNA synthesis and ASM thickening following repeated allergen exposure in Brown Norway rats sensitized to ovalbumin. There was a 3 fold increase in ASM cell DNA synthesis, as measured by percentage bromodeoxyuridine (BrdU) incorporation, in repeatedly ovalbumin-exposed (4.1%, 3.6-4.6; mean, 95% c.i.) compared to chronically saline-exposed rats (1.3%, 0.6-2.1; P<0.001). Treatment with a 5-lipoxygenase enzyme inhibitor (SB 210661, 10 mg kg(-1), p.o.) and a specific cysteinyl leukotriene (CysLT1) receptor antagonist, pranlukast (SB 205312, 30 mg kg(-1), p.o.), both attenuated ASM cell DNA synthesis. Treatment with a specific leukotriene B4 (BLT) receptor antagonist (SB 201146, 15 mg kg(-1), p.o.) had no effect. There was also a significant, 2 fold increase in the number of epithelial cells incorporating BrdU per unit length of basement membrane after repeated allergen exposure. This response was not inhibited by treatment with SB 210661, pranlukast or SB 201146. A significant increase in ASM thickness was identified following repeated allergen exposure and this response was attenuated significantly by SB 210661, pranlukast and SB 201146. Rats exposed to chronic allergen exhibited bronchial hyperresponsiveness to acetylcholine and had significant eosinophil recruitment into the lungs. Treatment with SB 210661, pranlukast or SB 201146 significantly attenuated eosinophil recruitment into the lungs, whilst having no significant effect on airway hyperresponsiveness. These data indicate that the cysteinyl leukotrienes are important mediators in allergen-induced ASM cell DNA synthesis in rats, while both LTB4 and cysteinyl leukotrienes contribute to ASM thickening and eosinophil recruitment following repeated allergen exposure.

Indexed as

AcetylcholineAllergensAnimalsArachidonate 5-LipoxygenaseBronchiCell CountCysteineDNAEosinophilsLeukotrienesMaleMuscle, SmoothRatsRats, Inbred BNAcetylcholineAllergensArachidonate 5-LipoxygenaseCysteinecysteinyl-leukotrieneDNALeukotrienes

Identifiers

PMID10455261
PMCPMC1566132
OpenAlexW1968898221

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.