Evidence map›Paper›PMID 8383567›Full record

ArticleBritish journal of pharmacology1993

Investigation into the role of phosphodiesterase IV in bronchorelaxation, including studies with human bronchus.

J Cortijo, J Bou, J Beleta, I Cardelús, J Llenas, E Morcillo, R W Gristwood

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in British journal of pharmacology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 113 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Theophylline inhibits the cough reflex through a novel mechanism of action.The Journal of allergy and clinical immunology · 2014
    Article
  5. New therapeutic options in the management of COPD - focus on roflumilast.International journal of chronic obstructive pulmonary disease · 2011
    Review
  6. Treating COPD with PDE 4 inhibitors.International journal of chronic obstructive pulmonary disease · 2007
    Review
  7. Phosphodiesterase inhibitors.British journal of pharmacology · 2006
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
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  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 2 institutions in 1 country.

J CortijoDivision of Biological Sciences, Laboratorios Almirall, Barcelona, Spain.
J Bou
J Beleta
I Cardelús
J Llenas
E Morcillo
R W Gristwood
Almirall (Spain) · ESUniversitat de València · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. We have investigated the role of cyclic nucleotide phosphodiesterase IV (PDE IV) in the relaxation of human bronchus and guinea-pig trachea in vitro and in guinea-pigs in vivo. 2. Functional studies showed that the selective PDE IV inhibitors, rolipram and denbufylline, relaxed human and guinea-pig preparations in vitro. 3. Two clinically used xanthine non-selective PDE inhibitors, theophylline and pentoxifylline, were also effective in these preparations, but were much less potent than the selective agents used. 4. The rank order of potency for the four PDE inhibitors in both species was similar. 5. Biochemical studies indicated that PDE IV was the major PDE isoform present in the human bronchial tissue. PDEs I, II and V were also identified. 6. Theophylline and pentoxifylline were, as expected, non-selective inhibitors of the human enzymes, but there was a good correlation between PDE IV inhibitory and bronchorelaxation potencies, suggesting that PDE IV inhibition is important for the clinical bronchodilator activities of the two xanthine compounds. 7. We have confirmed the ability of selective PDE IV inhibitors to cause bronchodilatation in guinea-pigs in vivo. 8. We conclude that our study has provided further evidence that selective PDE IV inhibitors could act as bronchodilators in the clinic.

Indexed as

3',5'-Cyclic-AMP PhosphodiesterasesAdultAgedAnimalsAsthmaBronchodilator AgentsCyclic Nucleotide Phosphodiesterases, Type 4Disease Models, AnimalFemaleGuinea PigsHumansIn Vitro TechniquesIsoenzymesIsoproterenolMaleMiddle Aged3',5'-Cyclic-AMP PhosphodiesterasesBronchodilator AgentsCyclic Nucleotide Phosphodiesterases, Type 4denbufyllineIsoenzymesIsoproterenolPentoxifyllinePhosphodiesterase InhibitorsPhosphoric Diester HydrolasesPyrrolidinonesRolipramTheophyllineXanthines

Identifiers

PMID8383567
PMCPMC1907986
OpenAlexW2021597042

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.