Evidence map›Paper›PMID 23867843›Full record

ArticleInternational journal of oral science2013

Oral mucosal lipids are antibacterial against Porphyromonas gingivalis, induce ultrastructural damage, and alter bacterial lipid and protein compositions.

Carol L Fischer, Katherine S Walters, David R Drake, Deborah V Dawson, Derek R Blanchette, Kim A Brogden, Philip W Wertz

Open access · goldAbstract read
In one paragraph

Article in International journal of oral science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 63 citations in OpenAlex.

  1. Sphingosine synergizes with polymyxin antibiotics againstMicrobiology (Reading, England) · 2026
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  5. ThebioRxiv : the preprint server for biology · 2024
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  6. VaginalbioRxiv : the preprint server for biology · 2023
    Article
  7. Review
  8. Antimicrobial Effect ofArchives of Razi Institute · 2022
    Article
  9. Article
  10. Article
  11. Antimicrobial Tear Lipids in the Ocular Surface Defense.Frontiers in cellular and infection microbiology · 2022
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Antimicrobial Activity of Host-Derived Lipids.Antibiotics (Basel, Switzerland) · 2020
    Review
  17. Article
  18. Sphingosine-coating of plastic surfaces prevents ventilator-associated pneumonia.Journal of molecular medicine (Berlin, Germany) · 2019
    Article
  19. Promise of Combining Antifungal Agents in Denture Adhesives to Fight Candida Species Infections.Journal of prosthodontics : official journal of the American College of Prosthodontists · 2018
    Article
  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

7 authors at 1 institution in 1 country.

Carol L FischerDows Institute for Dental Research, College of Dentistry, The University of Iowa, Iowa City, USA.
Katherine S Walters
David R Drake
Deborah V Dawson
Derek R Blanchette
Kim A Brogden
Philip W Wertz
University of Iowa · US

Funding

Defensin-induced Adaptive Immunity to HagBR01DE014390 · NIDCR · UNIVERSITY OF IOWA · PI BROGDEN, KIM A · 2003 to 2014
$3.4M
Antimicrobial Lipids within the Oral CavityR01DE018032 · NIDCR · UNIVERSITY OF IOWA · PI WERTZ, PHILIP WESLEY · 2008 to 2010
$785k
NIDCR NIH HHS R01 DE014390NIDCR NIH HHS R01 DE018032PHS HHS R01 DEO14390PHS HHS R01 DEO18032
6 · The paper itself

Abstract

Oral mucosal and salivary lipids exhibit potent antimicrobial activity for a variety of Gram-positive and Gram-negative bacteria; however, little is known about their spectrum of antimicrobial activity or mechanisms of action against oral bacteria. In this study, we examine the activity of two fatty acids and three sphingoid bases against Porphyromonas gingivalis, an important colonizer of the oral cavity implicated in periodontitis. Minimal inhibitory concentrations, minimal bactericidal concentrations, and kill kinetics revealed variable, but potent, activity of oral mucosal and salivary lipids against P. gingivalis, indicating that lipid structure may be an important determinant in lipid mechanisms of activity against bacteria, although specific components of bacterial membranes are also likely important. Electron micrographs showed ultrastructural damage induced by sapienic acid and phytosphingosine and confirmed disruption of the bacterial plasma membrane. This information, coupled with the association of treatment lipids with P. gingivalis lipids revealed via thin layer chromatography, suggests that the plasma membrane is a likely target of lipid antibacterial activity. Utilizing a combination of two-dimensional in-gel electrophoresis and Western blot followed by mass spectroscopy and N-terminus degradation sequencing we also show that treatment with sapienic acid induces upregulation of a set of proteins comprising a unique P. gingivalis stress response, including proteins important in fatty acid biosynthesis, metabolism and energy production, protein processing, cell adhesion and virulence. Prophylactic or therapeutic lipid treatments may be beneficial for intervention of infection by supplementing the natural immune function of endogenous lipids on mucosal surfaces.

Indexed as

Anti-Bacterial AgentsBacterial ProteinsColony Count, MicrobialFatty AcidsHumansLipidsMicroscopy, ElectronMouth MucosaPorphyromonas gingivalisSalivaSphingolipidsVirulenceAnti-Bacterial AgentsBacterial ProteinsFatty AcidsLipidsSphingolipids

Identifiers

PMID23867843
PMCPMC3967327
OpenAlexW1985954940

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.