Evidence map›Paper›PMID 29281641›Full record

ArticlePLoS neglected tropical diseases2017

Development of a Multilocus Sequence Typing (MLST) scheme for Treponema pallidum subsp. pertenue: Application to yaws in Lihir Island, Papua New Guinea.

Charmie Godornes, Lorenzo Giacani, Alyssa E Barry, Oriol Mitja, Sheila A Lukehart

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Trial
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  9. Primary Syphilis in the Male Urethra: A Case Report.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
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  11. Multiple Class I and Class II Haemophilus ducreyi Strains Cause Cutaneous Ulcers in Children on an Endemic Island.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    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

5 authors at 3 institutions in 4 countries.

Charmie GodornesDepartment of Medicine, University of Washington, Seattle, Washington, United States of America.
Lorenzo GiacaniDepartment of Medicine, University of Washington, Seattle, Washington, United States of America.
Alyssa E BarryDivision of Population Health and Immunity, Walter and Eliza Hall Institute, Parkville, Australia.
Oriol MitjaBarcelona Institute for Global Health, Hospital Clinic-Universitat de Barcelona, Barcelona, Spain.
Sheila A LukehartDepartment of Medicine, University of Washington, Seattle, Washington, United States of America.ORCID 0000-0001-9778-3301
University of Washington · USThe University of Melbourne · AUUniversity of Papua New Guinea · PG

Funding

TREPONEMA PALLIDUM PATHOGENESIS ASSOCIATED MOLECULESR01AI042143 · NIAID · UNIVERSITY OF WASHINGTON · PI LUKEHART, SHEILA A. · 1998 to 2015
$5.4M
NIAID NIH HHS R01 AI042143NIH HHS R01AI42143
6 · The paper itself

Abstract

backgroundYaws is a neglected tropical disease, caused by Treponema pallidum subsp. pertenue. The disease causes chronic lesions, primarily in young children living in remote villages in tropical climates. As part of a global yaws eradication campaign initiated by the World Health Organization, we sought to develop and evaluate a molecular typing method to distinguish different strains of T. pallidum subsp. pertenue for disease control and epidemiological purposes. METHODS AND PRINCIPAL

findingsPublished genome sequences of strains of T. pallidum subsp. pertenue and pallidum were compared to identify polymorphic genetic loci among the strains. DNA from a number of existing historical Treponema isolates, as well as a subset of samples from yaws patients collected in Lihir Island, Papua New Guinea, were analyzed using these targets. From these data, three genes (tp0548, tp0136 and tp0326) were ultimately selected to give a high discriminating capability among the T. pallidum subsp. pertenue samples tested. Intragenic regions of these three target genes were then selected to enhance the discriminating capability of the typing scheme using short readily amplifiable loci. This 3-gene multilocus sequence typing (MLST) method was applied to existing historical human yaws strains, the Fribourg-Blanc simian isolate, and DNA from 194 lesion swabs from yaws patients on Lihir Island, Papua New Guinea. Among all samples tested, fourteen molecular types were identified, seven of which were found in patient samples and seven among historical isolates or DNA. Three types (JG8, TD6, and SE7) were predominant on Lihir Island.

conclusionsThis MLST approach allows molecular typing and differentiation of yaws strains. This method could be a useful tool to complement epidemiological studies in regions where T. pallidum subsp. pertenue is prevalent with the overall goals of improving our understanding of yaws transmission dynamics and helping the yaws eradication campaign to succeed.

Indexed as

Base SequenceChildDeveloping CountriesDNA, BacterialHumansMultilocus Sequence TypingPapua New GuineaSequence AlignmentSequence Analysis, DNATreponema pallidumYawsDNA, Bacterial

Identifiers

PMID29281641
PMCPMC5760108
OpenAlexW2779564321

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.