Evidence map›Paper›PMID 12137242›Full record

ArticleMediators of inflammation2002

Effects of the cationic protein poly-L-arginine on airway epithelial cells in vitro.

Shahida Shahana, Caroline Kampf, Godfried M Roomans

Open access · goldAbstract read
In one paragraph

Article in Mediators of inflammation, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 42 citations in OpenAlex.

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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

3 authors at 1 institution in 2 countries.

Shahida ShahanaDepartment of Medical Cell Biology, University of Uppsala, Sweden. shahida.shahana@medcellbiol.uu.se
Caroline Kampf
Godfried M Roomans
Uppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAllergic asthma is associated with an increased number of eosinophils in the airway wall. Eosinophils secrete cationic proteins, particularly major basic protein (MBP).

aimTo investigate the effect of synthetic cationic polypeptides such as poly-L-arginine, which can mimic the effect of MBP, on airway epithelial cells.

methodsCultured airway epithelial cells were exposed to poly-L-arginine, and effects were determined by light and electron microscopy.

resultsPoly-L-arginine induced apoptosis and necrosis. Transmission electron microscopy showed mitochondrial damage and changes in the nucleus. The tight junctions were damaged, as evidenced by penetration of lanthanum. Scanning electron microscopy showed a damaged cell membrane with many pores. Microanalysis showed a significant decrease in the cellular content of magnesium, phosphorus, sodium, potassium and chlorine, and an increase in calcium. Plakoglobin immunoreactivity in the cell membrane was decreased, indicating a decrease in the number of desmosomes

conclusionsThe results point to poly-L-arginine induced membrane damage, resulting in increased permeability, loss of cell-cell contacts and generalized cell damage.

Indexed as

ApoptosisAsthmaCell MembraneCell NucleusCells, CulturedCell SurvivalCytoskeletal ProteinsDesmoplakinsDesmosomesDose-Response Relationship, DrugEpithelial Cellsgamma CateninHumansImmunohistochemistryMitochondriaNecrosisCytoskeletal ProteinsDesmoplakinsgamma CateninPeptidespolyarginine

Identifiers

PMID12137242
PMCPMC1781659
OpenAlexW2156898022

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.