Evidence map›Paper›PMID 25662974›Full record

ArticleApplied and environmental microbiology2015

Targeting Enterococcus faecalis biofilms with phage therapy.

Leron Khalifa, Yair Brosh, Daniel Gelman, Shunit Coppenhagen-Glazer, Shaul Beyth, Ronit Poradosu-Cohen, Yok-Ai Que, Nurit Beyth, Ronen Hazan

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed, 3 pooled it
12.2field-weighted citation impact, top 1% 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

128 citing papers in PubMed, 3 syntheses or guidelines pooled it, 223 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. A systematic review of the use of bacteriophages for in vitro biofilm control.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023
    Pooled it
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  18. Unlocking the Potential ofMicroorganisms · 2025
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  20. Review

68 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

9 authors at 4 institutions in 2 countries.

Leron KhalifaFaculty of Dental Sciences, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel Department of Prosthodontics, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Yair BroshFaculty of Dental Sciences, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel Department of Prosthodontics, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Daniel GelmanFaculty of Dental Sciences, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Shunit Coppenhagen-GlazerFaculty of Dental Sciences, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Shaul BeythDepartment of Orthopedic Surgery, Hebrew University-Hadassah Medical Center, Jerusalem, Israel.
Ronit Poradosu-CohenDepartment of Infectious Diseases of Sourasky Medical Center and Tel-Aviv University, Tel-Aviv, Israel.
Yok-Ai QueDepartment of Intensive Care Medicine, Lausanne University Hospital, Lausanne, Switzerland.
Nurit BeythDepartment of Prosthodontics, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
Ronen HazanFaculty of Dental Sciences, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel The Israeli Institute for Advanced Research, Rehovot, Israel ronenh@ekmd.huji.ac.il.
Hebrew University of Jerusalem · ILHadassah Medical Center · ILTel Aviv University · ILUniversity of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phage therapy has been proven to be more effective, in some cases, than conventional antibiotics, especially regarding multidrug-resistant biofilm infections. The objective here was to isolate an anti-Enterococcus faecalis bacteriophage and to evaluate its efficacy against planktonic and biofilm cultures. E. faecalis is an important pathogen found in many infections, including endocarditis and persistent infections associated with root canal treatment failure. The difficulty in E. faecalis treatment has been attributed to the lack of anti-infective strategies to eradicate its biofilm and to the frequent emergence of multidrug-resistant strains. To this end, an anti-E. faecalis and E. faecium phage, termed EFDG1, was isolated from sewage effluents. The phage was visualized by electron microscopy. EFDG1 coding sequences and phylogeny were determined by whole genome sequencing (GenBank accession number KP339049), revealing it belongs to the Spounavirinae subfamily of the Myoviridae phages, which includes promising candidates for therapy against Gram-positive pathogens. This analysis also showed that the EFDG1 genome does not contain apparent harmful genes. EFDG1 antibacterial efficacy was evaluated in vitro against planktonic and biofilm cultures, showing effective lytic activity against various E. faecalis and E. faecium isolates, regardless of their antibiotic resistance profile. In addition, EFDG1 efficiently prevented ex vivo E. faecalis root canal infection. These findings suggest that phage therapy using EFDG1 might be efficacious to prevent E. faecalis infection after root canal treatment.

Indexed as

BiofilmsGenome, ViralDental Pulp CavityDental Pulp DiseasesEnterococcus faecalisGram-Positive Bacterial InfectionsMolecular Sequence DataMyoviridaePlanktonSequence Analysis, DNASewageSewage

Identifiers

PMID25662974
PMCPMC4375334
OpenAlexW2006674954

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.