Evidence map›Paper›PMID 17244350›Full record

ArticleBMC microbiology2007

Verruculogen associated with Aspergillus fumigatus hyphae and conidia modifies the electrophysiological properties of human nasal epithelial cells.

Khaled Khoufache, Olivier Puel, Nicolas Loiseau, Marcel Delaforge, Danièle Rivollet, André Coste, Catherine Cordonnier, Estelle Escudier, Françoise Botterel, Stéphane Bretagne

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 77 citations in OpenAlex.

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  16. Review
  17. Current medical mycology · 2016
    Review
  18. Article
  19. 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

10 authors at 5 institutions in 1 country.

Khaled KhoufacheLaboratoire de Parasitologie-Mycologie, Hôpital Henri Mondor (AP-HP), Université Paris 12, and UMR BIPAR 956, Créteil, France. k_khoufache@yahoo.fr <k_khoufache@yahoo.fr>
Olivier Puel
Nicolas Loiseau
Marcel Delaforge
Danièle Rivollet
André Coste
Catherine Cordonnier
Estelle Escudier
Françoise Botterel
Stéphane Bretagne
Assistance Publique – Hôpitaux de Paris · FRCentre Hospitalier Universitaire Henri-Mondor · FRCommissariat à l'Énergie Atomique et aux Énergies Alternatives · FRInserm · FRUniversité Paris-Est Créteil · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of Aspergillus fumigatus mycotoxins in the colonization of the respiratory tract by conidia has not been studied extensively, even though patients at risk from invasive aspergillosis frequently exhibit respiratory epithelium damage. In a previous study, we found that filtrates of A. fumigatus cultures can specifically alter the electrophysiological properties of human nasal epithelial cells (HNEC) compared to those of non pathogenic moulds.

resultsWe fractionated the organic phase of filtrate from 3-day old A. fumigatus cultures using high-performance liquid chromatography. The different fractions were tested for their ability to modify the electrophysiological properties of HNEC in an in vitro primary culture model. The fraction collected between 20 and 30 min mimicked the effects of the whole filtrate, i.e. decrease of transepithelial resistance and increase of potential differences, and contained secondary metabolites such as helvolic acid, fumagillin, and verruculogen. Only verruculogen (10(-8) M) had effects similar to the whole filtrate. We verified that verruculogen was produced by a collection of 67 human, animal, plant and environmental A. fumigatus isolates. Using MS-MS analysis, we found that verruculogen was associated with both mycelium and conidia extracts.

conclusionVerruculogen is a secondary metabolite that modifies the electrophysiological properties of HNEC. The role of these modifications in the colonization and invasion of the respiratory epithelium by A. fumigatus on first contact with the epithelium remains to be determined.

Indexed as

Aspergillus fumigatusCells, CulturedElectric ImpedanceHumansHyphaeIndolesMycotoxinsNasal MucosaSpores, FungalIndolesMycotoxinsverruculogen

Identifiers

PMID17244350
PMCPMC1797047
OpenAlexW1607058075

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.