Evidence map›Paper›PMID 19175941›Full record

ArticleBMC microbiology2009

Comparative transcriptomic analysis of Porphyromonas gingivalis biofilm and planktonic cells.

Alvin W Lo, Christine A Seers, John D Boyce, Stuart G Dashper, Nada Slakeski, J Patricia Lissel, Eric C Reynolds

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
6.6field-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

37 citing papers in PubMed, 69 citations in OpenAlex.

  1. Article
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  5. Review
  6. Contribution of -Omics Technologies in the Study ofInternational journal of molecular sciences · 2022
    Review
  7. Article
  8. Comparative Transcriptome Analysis ofFrontiers in cellular and infection microbiology · 2022
    Article
  9. Review
  10. Review
  11. The Type 9 Secretion System Is Required forFrontiers in microbiology · 2021
    Article
  12. Biofilm architecture: An emerging synthetic biology target.Synthetic and systems biotechnology · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. New approaches to combatJournal of oral microbiology · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 2 institutions in 1 country.

Alvin W LoCooperative Research Centre for Oral Health Science, Melbourne Dental School and the Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia. loalvin80@yahoo.com
Christine A Seers
John D Boyce
Stuart G Dashper
Nada Slakeski
J Patricia Lissel
Eric C Reynolds
University of Melbourne · AUMonash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPorphyromonas gingivalis in subgingival dental plaque, as part of a mature biofilm, has been strongly implicated in the onset and progression of chronic periodontitis. In this study using DNA microarray we compared the global gene expression of a P. gingivalis biofilm with that of its planktonic counterpart grown in the same continuous culture.

resultsApproximately 18% (377 genes, at 1.5 fold or more, P-value < 0.01) of the P. gingivalis genome was differentially expressed when the bacterium was grown as a biofilm. Genes that were down-regulated in biofilm cells, relative to planktonic cells, included those involved in cell envelope biogenesis, DNA replication, energy production and biosynthesis of cofactors, prosthetic groups and carriers. A number of genes encoding transport and binding proteins were up-regulated in P. gingivalis biofilm cells. Several genes predicted to encode proteins involved in signal transduction and transcriptional regulation were differentially regulated and may be important in the regulation of biofilm growth.

conclusionThis study analyzing global gene expression provides insight into the adaptive response of P. gingivalis to biofilm growth, in particular showing a down regulation of genes involved in growth and metabolic activity.

Indexed as

BiofilmsGene Expression ProfilingGene Expression Regulation, BacterialOligonucleotide Array Sequence AnalysisPorphyromonas gingivalisRNA, BacterialRNA, Bacterial

Identifiers

PMID19175941
PMCPMC2637884
OpenAlexW2051582658

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.