Evidence map›Paper›PMID 21569555›Full record

ArticleBMC microbiology2011

PNA-FISH as a new diagnostic method for the determination of clarithromycin resistance of Helicobacter pylori.

Laura Cerqueira, Ricardo M Fernandes, Rui M Ferreira, Fátima Carneiro, Mário Dinis-Ribeiro, Céu Figueiredo, Charles W Keevil, Nuno F Azevedo, Maria J Vieira

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in BMC microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

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

  1. Pooled it
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  10. Modern Tools for Rapid Diagnostics of Antimicrobial Resistance.Frontiers in cellular and infection microbiology · 2020
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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 5 institutions in 2 countries.

Laura CerqueiraIBB - Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar 4710-057, Braga, Portugal.
Ricardo M Fernandes
Rui M Ferreira
Fátima Carneiro
Mário Dinis-Ribeiro
Céu Figueiredo
Charles W Keevil
Nuno F Azevedo
Maria J Vieira
Universidade do Porto · PTUniversity of Minho · PTHospital de São João · PTInstitute for Biotechnology and Bioengineering · PTUniversity of Southampton · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTriple therapy is the gold standard treatment for Helicobacter pylori eradication from the human stomach, but increased resistance to clarithromycin became the main factor of treatment failure. Until now, fastidious culturing methods are generally the method of choice to assess resistance status. In this study, a new genotypic method to detect clarithromycin resistance in clinical samples, based on fluorescent in situ hybridization (FISH) using a set of peptide nucleic acid probes (PNA), is proposed.

resultsThe set of probes targeting the point mutations responsible for clarithromycin resistance was applied to H. pylori suspensions and showed 100% sensitivity and specificity (95% CI, 79.9-100 and 95% CI, 71.6-100 respectively). This method can also be amenable for application to gastric biopsy samples, as resistance to clarithromycin was also detected when histological slides were tested.

conclusionsThe optimized PNA-FISH based diagnostic method to detect H. pylori clarithromycin resistance shown to be a very sensitive and specific method for the detection of clarithromycin resistance in the H. pylori smears and also proved to be a reliable method for the diagnosis of this pathogen in clinical samples and an alternative to existing plating methods.

Indexed as

Drug Resistance, BacterialPeptide Nucleic AcidsAnti-Bacterial AgentsClarithromycinGenotypeHelicobacter pyloriHumansIn Situ Hybridization, FluorescenceMicrobial Sensitivity TestsMolecular TypingOligonucleotide ProbesSensitivity and SpecificityAnti-Bacterial AgentsClarithromycinOligonucleotide ProbesPeptide Nucleic Acids

Identifiers

PMID21569555
PMCPMC3112065
OpenAlexW2145209843

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.