Evidence map›Paper›PMID 15297496›Full record

ArticleJournal of clinical microbiology2004

Use of 16S ribosomal DNA PCR and denaturing gradient gel electrophoresis for analysis of the microfloras of healing and nonhealing chronic venous leg ulcers.

Charlotte E Davies, Katja E Hill, Melanie J Wilson, Phil Stephens, C Michael Hill, Keith G Harding, David W Thomas

Abstract read
In one paragraph

Article in Journal of clinical microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

48 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Silver Nanoparticles Phytofabricated throughAntibiotics (Basel, Switzerland) · 2023
    Article
  7. Biofilm-Associated Infections in Chronic Wounds and Their Management.Advances in experimental medicine and biology · 2023
    Article
  8. Article
  9. Review
  10. Advances in the Sensing and Treatment of Wound Biofilms.Angewandte Chemie (International ed. in English) · 2022
    Review
  11. Advances in the Sensing and Treatment of Wound Biofilms.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2022
    Review
  12. [Research advances on the formation mechanism and diagnosis of bacteria biofilms in chronic wounds].Zhonghua shao shang za zhi = Zhonghua shaoshang zazhi = Chinese journal of burns · 2021
    Article
  13. Article
  14. Article
  15. Article
  16. 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.

Charlotte E DaviesWound Biology Group, Department of Oral Surgery, Medicine, and Pathology, University of Wales College of Medicine, Heath Park, Cardiff CF14 4XY, United Kingdom.
Katja E Hill
Melanie J Wilson
Phil Stephens
C Michael Hill
Keith G Harding
David W Thomas

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The bacterial microfloras of 8 healing and 10 nonhealing chronic venous leg ulcers were compared by using a combination of cultural analysis and denaturing gradient gel electrophoresis (DGGE) of PCR-amplified 16S rRNA gene products. Cultural analysis of the microflora revealed that the majority of both wound types carried the aerobes Staphylococcus and Pseudomonas spp. (89 and 80%, respectively). Sequencing of 16S ribosomal DNAs selected on the basis of DGGE profiling allowed the identification of strains not detected by cultural means. Of considerable interest was the finding that more than 40% of the sequences represented organisms not cultured from the wound from which they were amplified. DGGE profiles also revealed that all of the wounds possessed one apparently common band, identified by sequencing as Pseudomonas sp. The intensity of this PCR signal suggested that the bacterial load of nonhealing wounds was much higher for pseudomonads compared to healing wounds and that it may have been significantly underestimated by cultural analysis. Hence, the present study shows that DGGE could give valuable additional information about chronic wound microflora that is not apparent from cultural analysis alone.

Indexed as

Wound HealingBase SequenceBiopsyChronic DiseaseDNA, RibosomalElectrophoresis, Polyacrylamide GelHumansLeg UlcerPolymerase Chain ReactionPseudomonasRNA, Ribosomal, 16SStaphylococcusDNA, RibosomalRNA, Ribosomal, 16S

Identifiers

PMID15297496
PMCPMC497624

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.