Evidence map›Paper›PMID 27412444›Full record

ArticleBMC infectious diseases2016

Combination with antimicrobial peptide lyses improves loop-mediated isothermal amplification based method for Chlamydia trachomatis detection directly in urine sample.

Jekaterina Jevtuševskaja, Julia Uusna, Liis Andresen, Katrin Krõlov, Made Laanpere, Tiia Grellier, Indrek Tulp, Ülo Langel

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
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  12. Sensitive and visual identification ofFrontiers in cellular and infection microbiology · 2022
    Article
  13. Progress and Perspectives in Point of Care Testing for Urogenital Chlamydia trachomatis Infection: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Review
  14. Review
  15. Article
  16. Article
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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

8 authors at 2 institutions in 2 countries.

Jekaterina JevtuševskajaUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia. iriss@ut.ee.
Julia UusnaUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia.
Liis AndresenUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia.
Katrin KrõlovUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia.
Made LaanpereThe Tartu University Hospital's Women's Clinic and Tartu Sexual Health Clinic, Tartu, Estonia.
Tiia GrellierUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia.
Indrek TulpSelfD Technologie GmbH, Leipzig, Germany.
Ülo LangelUniversity of Tartu, Institute of Technology Laboratory of Molecular Biotechnology, Nooruse 1, Tartu, 50411, Estonia.
University of Tartu · EETartu University Hospital · EE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChlamydia trachomatis is an obligate intracellular human pathogen and is the most common cause of sexually transmitted diseases affecting both men and women. The pathogen can cause prostatitis and epididymitis in men. In women, cervicitis, pelvic inflammatory disease, ectopic pregnancy and acute or chronic pelvic pain are frequent complications. More than half of C. trachomatis-positive patients have minimal or no symptoms, providing an ongoing reservoir for the infection. The lack of sensitive large-scale applicable point- of- care (POC) tests for C. trachomatis detection makes it difficult to diagnose chlamydia infection efficiently in resource-limited environments.

methodsA rapid and sensitive assay based on loop-mediated isothermal amplification method (LAMP) was combined with antimicrobial peptide lysis, which is able to detect at least 7 C. trachomatis pathogens per reaction directly from urine samples.

resultsOur study comprising 91 first-void urine samples showed that specificity of the assay is 100 % and sensitivity 73 % when using antimicrobial peptide lysis mix. Additionally we demonstrate that our assay does not give any cross-reactivity with 30 pathogen's DNA potentially present in the urine samples. Furthermore, the assay's novel approach does not require purification or extraction of DNA from clinical sample prior to amplification, so the need for specialized equipment is eliminated.

conclusionsThe whole procedure is significantly less laborious, less time-consuming and consequently less expensive for early detection and identification of infectious disease. C. trachomatis specific LAMP assay is relatively simple to perform and could therefore be applied in numerous POC settings.

Indexed as

Anti-Infective AgentsAntimicrobial Cationic PeptidesChlamydia InfectionsChlamydia trachomatisDNA, BacterialFemaleHumansLimit of DetectionMaleNucleic Acid Amplification TechniquesPoint-of-Care SystemsPregnancySensitivity and SpecificityAnti-Infective AgentsAntimicrobial Cationic PeptidesDNA, BacterialChlamydia trachomatisDiagnostics of sexually transmitted diseasesLoop-mediated isothermal amplificationPathogen detection in crude urinePoint-of-care assay

Identifiers

PMID27412444
PMCPMC4944247
OpenAlexW2466742624

What OpenQuestion holds

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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.