Evidence map›Paper›PMID 8213996›Full record

ArticleThe American journal of pathology1993

Polymorphonuclear leukocytes as a significant source of tumor necrosis factor-alpha in endotoxin-challenged lung tissue.

Z Xing, H Kirpalani, D Torry, M Jordana, J Gauldie

Open access · greenAbstract read
In one paragraph

Article in The American journal of pathology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.4field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 104 citations in OpenAlex.

  1. Cannabidiol protects lung against inflammation and apoptosis in a rat model of blunt chest trauma via Bax/Bcl-2/Cas-9 signaling pathway.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
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  8. Protease-activated receptor 2 deficiency reduces cardiac ischemia/reperfusion injury.Arteriosclerosis, thrombosis, and vascular biology · 2010
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  14. Epidermal growth factor system regulates mucin production in airways.Proceedings of the National Academy of Sciences of the United States of America · 1999
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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

5 authors at 1 institution in 1 country.

Z XingDepartment of Pathology, Chedoke-McMaster Medical Centre, McMaster University, Hamilton, Ontario, Canada.
H Kirpalani
D Torry
M Jordana
J Gauldie
McMaster University Medical Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The kinetic expression and potential cellular source of tumor necrosis factor-alpha (TNF-alpha) in lipopolysaccharide-(LPS) induced acute lung inflammation was investigated using a rat model by Northern blot analysis, in situ hybridization and immunohistochemistry. LPS induced a polymorphonuclear leukocyte infiltrate in the lung that peaked between 6 and 24 hours. TNF-alpha messenger (m)RNA was strongly induced by LPS in whole lung tissues shown by Northern analysis. Both alveolar macrophages and polymorphonuclear leukocytes (PMNs), purified from bronchoalveolar lavage fluids of LPS-treated rats, were shown to express TNF-alpha mRNA by Northern analysis. However, PMNs displayed several times more TNF-alpha mRNA, relative to actin mRNA, than alveolar macrophages at 6 and 12 hours. By in situ hybridization, most of the cells positive for TNF-alpha mRNA at 6 and 12 hours seemed to be PMNs located within the tissue near bronchioles or vessels. By immunohistochemistry, TNF-alpha protein was localized mainly to alveolar macrophages at early times (1 to 3 hours) after LPS challenge, and thereafter, PMNs seemed to be the predominant source of TNF-alpha protein as more than 90% of total intraalveolar positive cells at 6 and 12 hours were PMN. Thus, our data provide the first in vivo evidence that PMNs can serve as a significant source of TNF-alpha at sites of acute inflammation.

Indexed as

AnimalsBlotting, NorthernCell MovementEndotoxinsImmunohistochemistryIn Situ HybridizationLipopolysaccharidesLungNeutrophilsRatsRats, Sprague-DawleyRNA, MessengerTissue DistributionTumor Necrosis Factor-alphaEndotoxinsLipopolysaccharidesRNA, MessengerTumor Necrosis Factor-alpha

Identifiers

PMID8213996
PMCPMC1887070
OpenAlexW73625371

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.