Evidence map›Paper›PMID 1323529›Full record

ArticleInflammation1992

Pharmacological investigation of the role of leukotrienes in the pathogenesis of experimental NSAID gastropathy.

P M Vaananen, C M Keenan, M B Grisham, J L Wallace

Abstract read
PubMed Publisher
In one paragraph

Article in Inflammation, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
7.1field-weighted citation impact, top 2% 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, 78 citations in OpenAlex.

  1. Article
  2. Review
  3. Eicosanoids in the gastrointestinal tract.British journal of pharmacology · 2019
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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.

P M VaananenGastrointestinal Research Group, Faculty of Medicine, University of Calgary, Alberta, Canada.
C M Keenan
M B Grisham
J L Wallace
University of Calgary · CALouisiana State University in Shreveport · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The role of leukotrienes in the pathogenesis of acute gastric ulceration induced by nonsteroidal antiinflammatory drugs was investigated using a rat model. One part of the study involved oral pretreatment with a leukotriene synthesis inhibitor 1 h prior to administration of indomethacin (20 mg/kg per os). Three hours after indomethacin, the extent of macroscopically visible gastric damage was determined, and gastric LTB4 synthesis was determined. The compounds tested were PF-5901, A-64077, nordihydroguaiaretic acid, and L-698,037. Each compound produced dose-related inhibition of gastric LTB4 synthesis and a parallel reduction in the severity of indomethacin-induced damage. The antioxidant properties of these compounds was assessed using an in vitro assay. There was no correlation between the antioxidant properties of the compounds and their ability to reduce the severity of indomethacin-induced gastric damage. In the second part of the study, the effects of intravenous, administration of LTD4 and LTB4 receptor antagonists on indomethacin-induced gastric epithelial damage (measured by permeability to [51Cr]EDTA) were assessed. The two LTD4 receptor antagonists (MK-571 and ICI-204,219) significantly reduced the permeability changes induced by indomethacin, while the two LTB4 antagonists (SC-41930 and LY-255,283) were without significant effect. Despite the reduction of gastric epithelial injury, blockade of LTD4 receptors did not markedly affect the extent of macroscopically visible injury. These data are consistent with the hypothesis that leukotrienes contribute to the epithelial injury and macroscopically visible damage induced by NSAIDs. However, it remains unclear to what extent leukotrienes are involved in the initiation of the injury, as opposed to its amplification.

Indexed as

Organic Chemicals5-Lipoxygenase-Activating ProteinsAnimalsAnti-Inflammatory Agents, Non-SteroidalAntioxidantsBenzopyransCarrier ProteinsFree Radical ScavengersGastric MucosaHydroxyureaIndolesIndomethacinLeukotriene AntagonistsLeukotriene B4LeukotrienesLipoxygenase Inhibitors5-Lipoxygenase-Activating ProteinsAlox5ap protein, ratalpha-pentyl-3-(2-quinolinylmethoxy)benzenemethanolAnti-Inflammatory Agents, Non-SteroidalAntioxidantsBenzopyransCarrier ProteinsFree Radical ScavengersHydroxyureaIndolesIndomethacinL 698037Leukotriene AntagonistsLeukotriene B4LeukotrienesLipoxygenase InhibitorsLY 255283MasoprocolMembrane ProteinsOrganic ChemicalsPhenylcarbamatesPropionatesQuinolinesReceptors, ImmunologicReceptors, LeukotrieneReceptors, Leukotriene B4SC 41930SulfonamidesTetrazolesTosyl Compoundsverlukastzafirlukastzileuton

Identifiers

PMID1323529
OpenAlexW2018714950

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.