Evidence map›Paper›PMID 29848938›Full record

ArticleAnnals of Saudi medicine

A novel high-resolution melting analysis approach for rapid detection of vancomycin-resistant enterococci.

Hani Adnan Ozbak

Open access · diamondAbstract read
In one paragraph

Article in Annals of Saudi medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

1 citing paper in PubMed, 6 citations in OpenAlex.

  1. Article
4 · The record

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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

1 author at 1 institution in 1 country.

Hani Adnan OzbakDr. Hani Adnan Ozbak, Department of Clinical Laboratory Sciences,, Faculty of Applied Medical Sciences,, Taibah University,, PO Box 344, Madinah, Saudi Arabia T: +966-44-8618888 ext. 3622, Hani.ozbak@gmail. com, http://orcid.org/0000-0002.2651-9017.
Taibah University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVancomycin-resistant enterococci (VRE) are resistant to most classes of antibiotics. Diagnosis of VRE using standard methods takes 2 to 5 days. Development of a rapid PCR-assay that detects and identifies resistant genes in bacteria would provide time-critical information on the presence of VRE in clinical samples allowing early treatment and management of infected patients.

objectivesInvestigate the use of high resolution melting analysis (HRMA) and 16S-rRNA-PCR approach for rapid and cost-effective identification of VRE.

designDescriptive antibiotic susceptibility studies.

settingManchester Academic Health Sciences Centre and School of Translational Medicine, University of Manchester, UK, and Department of Clinical Laboratory Sciences, Taibah University, Saudi Arabia. MATERIALS AND

methodsPCR-HRMA using 16S-rRNA V1-primers was used to detect and identify VRE. DNA from different strains of vancomycin-resistant and -sensitive Enterococcus faecalis (VSE) and Enterococcus faecium were amplified using V1-primer followed by HRMA in a single run. Differentiation of VRE from VSE was based on curve shapes generated against reference organisms (Bacteroides fragilis). MAIN OUTCOMES MEASURES: Amplification curves and difference plots for VRE and VSE.

resultsDifference plots were generated for all vancomycin-resistant and -sensitive E faecalis and E faecium strains by subtracting their fluo.rescence melting profile from that of a reference-species B fragilis. A characteristic curve shape was produced by vancomycin-sensitive E faecalis and E faecium. However, vancomycin-resistant strains of these bacteria were associated with a markedly different curve shape facilitating a clear differentiation.

conclusionThe 16S-PCR-HRMA approach has the potential for detecting vancomycin-resistant E faecium and E faecalis. Data with VRE provide the basis for combining VRE identification with pathogens speciation in a rapid, cheap assay able to identify a pathogen as an Enterococcus and whether it is vancomycin-sensitive or -resistant E faecium or E faecalis in a single PCR and HRMA run. LIMITATIONS: Tested on specific, but not all, reference Enterococcus species and clinical isolates. CONFLICT OF INTEREST: None.

Indexed as

Anti-Bacterial AgentsCost-Benefit AnalysisEnterococcus faecalisEnterococcus faeciumHumansMicrobial Sensitivity TestsPolymerase Chain ReactionTime FactorsVancomycinVancomycin ResistanceVancomycin-Resistant EnterococciAnti-Bacterial AgentsVancomycin

Identifiers

PMID29848938
PMCPMC6074308
OpenAlexW2807633514

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.