Evidence map›Paper›PMID 15634990›Full record

ArticleJournal of clinical microbiology2005

Propionibacterium acnes types I and II represent phylogenetically distinct groups.

Andrew McDowell, Susanna Valanne, Gordon Ramage, Michael M Tunney, Josephine V Glenn, Gregory C McLorinan, Ajay Bhatia, Jean-Francois Maisonneuve, Michael Lodes, David H Persing and 1 more

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
5.4field-weighted citation impact, top 5% 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

87 citing papers in PubMed, 199 citations in OpenAlex.

  1. SkinApplied and environmental microbiology · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. The Role ofInternational journal of molecular sciences · 2025
    Review
  7. Review
  8. Review
  9. Whole genome sequencing distinguishes skin colonizing from infection-associatedFrontiers in cellular and infection microbiology · 2024
    Article
  10. Comparative Genomic Analysis ofMicroorganisms · 2023
    Article
  11. Article
  12. Splenic abscess caused byBMJ case reports · 2023
    Article
  13. Review
  14. Review
  15. Microbiological Characterization ofAntibiotics (Basel, Switzerland) · 2022
    Article
  16. The Role ofMicroorganisms · 2022
    Review
  17. Frequency and characteristics of bacterial and viral low-grade infections of the intervertebral discs: a prospective, observational study.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2022
    Observational
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Andrew McDowellDepartment of Microbiology and Immunobiology, School of Medicine, Queen's University, Grosvenor Road, Belfast, BT12 6BN, United Kingdom.
Susanna Valanne
Gordon Ramage
Michael M Tunney
Josephine V Glenn
Gregory C McLorinan
Ajay Bhatia
Jean-Francois Maisonneuve
Michael Lodes
David H Persing
Sheila Patrick
Queen's University Belfast · GBCorixa Corporation · USInfectious Disease Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although two phenotypes of the opportunistic pathogen Propionibacterium acnes (types I and II) have been described, epidemiological investigations of their roles in different infections have not been widely reported. Using immunofluorescence microscopy with monoclonal antibodies (MAbs) QUBPa1 and QUBPa2, specific for types I and II, respectively, we investigated the prevalences of the two types among 132 P. acnes isolates. Analysis of isolates from failed prosthetic hip implants (n = 40) revealed approximately equal numbers of type I and II organisms. Isolates from failed prosthetic hip-associated bone (n = 6) and tissue (n = 38) samples, as well as isolates from acne (n = 22), dental infections (n = 8), and skin removed during surgical incision (n = 18) were predominately of type I. A total of 11 (8%) isolates showed atypical MAb labeling and could not be conclusively identified. Phylogenetic analysis of P. acnes by nucleotide sequencing revealed the 16S rRNA gene to be highly conserved between types I and II. In contrast, sequence analysis of recA and a putative hemolysin gene (tly) revealed significantly greater type-specific polymorphisms that corresponded to phylogenetically distinct cluster groups. All 11 isolates with atypical MAb labeling were identified as type I by sequencing. Within the recA and tly phylogenetic trees, nine of these isolates formed a cluster distinct from other type I organisms, suggesting a further phylogenetic subdivision within type I. Our study therefore demonstrates that the phenotypic differences between P. acnes types I and II reflect deeper differences in their phylogeny. Furthermore, nucleotide sequencing provides an accurate method for identifying the type status of P. acnes isolates.

Indexed as

PhylogenyAnimalsAntibodies, BacterialAntibodies, MonoclonalBacterial Typing TechniquesDNA, RibosomalGenes, rRNAGram-Positive Bacterial InfectionsHemolysin ProteinsHumansMiceMice, Inbred BALB CMicroscopy, FluorescenceMolecular Sequence DataPropionibacterium acnesRec A RecombinasesAntibodies, BacterialAntibodies, MonoclonalDNA, RibosomalHemolysin ProteinsRec A RecombinasesRNA, Ribosomal, 16S

Identifiers

PMID15634990
PMCPMC540145
OpenAlexW2119877444

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.