Evidence map›Paper›PMID 22479621›Full record

ArticlePloS one2012

Involvement of iron in biofilm formation by Staphylococcus aureus.

Mei-Hui Lin, Jwu-Ching Shu, Hsiu-Yun Huang, Yi-Ching Cheng

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

62 citing papers in PubMed, 138 citations in OpenAlex.

  1. Article
  2. FeBiofilm · 2026
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  4. Nanoflowers: Smart Molecules for Biofilm Management.Applied biochemistry and biotechnology · 2025
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  6. Pulcherriminic acid relay; aFrontiers in cellular and infection microbiology · 2025
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  7. The adaptability ofFrontiers in cellular and infection microbiology · 2025
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  14. Deferiprone-Gallium-Protoporphyrin Chitogel DecreasesMaterials (Basel, Switzerland) · 2024
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Bacterial biofilms in the human body: prevalence and impacts on health and disease.Frontiers in cellular and infection microbiology · 2023
    Review

2 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Mei-Hui LinDepartment of Medical Biotechnology and Laboratory Science, Chang-Gung University, Taoyuan, Taiwan. thea@mail.cgu.edu.tw
Jwu-Ching Shu
Hsiu-Yun Huang
Yi-Ching Cheng
Chang Gung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Staphylococcus aureus is a human pathogen that forms biofilm on catheters and medical implants. The authors' earlier study established that 1,2,3,4,6-penta-O-galloyl-β-D-glucopyranose (PGG) inhibits biofilm formation by S. aureus by preventing the initial attachment of the cells to a solid surface and reducing the production of polysaccharide intercellular adhesin (PIA). Our cDNA microarray and MALDI-TOF mass spectrometric studies demonstrate that PGG treatment causes the expression of genes and proteins that are normally expressed under iron-limiting conditions. A chemical assay using ferrozine verifies that PGG is a strong iron chelator that depletes iron from the culture medium. This study finds that adding FeSO(4) to a medium that contains PGG restores the biofilm formation and the production of PIA by S. aureus SA113. The requirement of iron for biofilm formation by S. aureus SA113 can also be verified using a semi-defined medium, BM, that contains an iron chelating agent, 2, 2'-dipyridyl (2-DP). Similar to the effect of PGG, the addition of 2-DP to BM medium inhibits biofilm formation and adding FeSO(4) to BM medium that contains 2-DP restores biofilm formation. This study reveals an important mechanism of biofilm formation by S. aureus SA113.

Indexed as

Anti-Bacterial AgentsBiofilmsHumansHydrolyzable TanninsIronIron Chelating AgentsStaphylococcal InfectionsStaphylococcus aureusAnti-Bacterial AgentsHydrolyzable TanninsIronIron Chelating Agentspentagalloylglucose

Identifiers

PMID22479621
PMCPMC3313993
OpenAlexW2025236140

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.