Evidence map›Paper›PMID 28806423›Full record

ArticlePloS one2017

New synthetic lipid antigens for rapid serological diagnosis of tuberculosis.

Alison Jones, Mark Pitts, Juma'a R Al Dulayymi, James Gibbons, Andrew Ramsay, Delia Goletti, Christopher D Gwenin, Mark S Baird

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

11 citing papers in PubMed, 29 citations in OpenAlex.

  1. Observational
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  6. The role of antibodies in tuberculosis diagnosis, prophylaxis and therapy: a review from the ESGMYC study group.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
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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 3 institutions in 3 countries.

Alison JonesSchool of Chemistry, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.
Mark PittsSchool of Chemistry, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.
Juma'a R Al DulayymiSchool of Chemistry, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.
James GibbonsSchool of Environment, Natural Resources and Geography, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.
Andrew RamsaySpecial Programme for Research and Training in Tropical Diseases (TDR), World Health Organisation, Geneva, Switzerland.
Delia GolettiTranslational Research Unit, Department of Epidemiology and Preclinical Research, 'L. Spallanzani' National Institute for Infectious Diseases, Rome, Italy.
Christopher D GweninSchool of Chemistry, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.
Mark S BairdSchool of Chemistry, Bangor University, Bangor, Gwynedd, Wales, United Kingdom.ORCID http://orcid.org/0000-0001-5340-8745
Bangor University · GBIstituto Nazionale per le Malattie Infettive Lazzaro Spallanzani · ITUniversity of St Andrews · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring pulmonary tuberculosis (PTB) antibodies are generated to trehalose esters of mycolic acids which are cell wall lipids of Mycobacterium tuberculosis (Mtb). Attempts have been made to use these complex natural mixtures in serological tests for PTB diagnosis.

aimThe aim of this work was to determine whether a serological test based on a panel of defined individual trehalose esters of characteristic synthetic mycolic acids has improved diagnostic accuracy in distinguishing patients with culture positive PTB from individuals who were Mtb culture negative.

methodOne hundred serum samples from well-characterized patients with presumptive tuberculosis, and diagnosed as having pulmonary smear and culture positive TB, or being culture and smear negative were evaluated by ELISA using different combinations of synthetic antigens and secondary antibodies. Using cut-off values determined from these samples, we validated this study blind in samples from a further 249 presumptive TB patients.

resultsWith the first 100 samples, detailed responses depended both on the precise structure of the antigen and on the secondary antibody. Using a single antigen, a sensitivity/specificity combination for smear and culture positive PTB detection of 85 and 88% respectively was achieved; this increased to 96% and 95% respectively by a statistical combination of the results with seven antigens. In the blind study a sensitivity/specificity of 87% and 83% was reached with a single antigen. With some synthetic antigens, the responses from all 349 samples were significantly better than those with the natural mixture. Combining the results for seven antigens allowed a distinction between culture positive and negative with a ROC AUC of 0.95.

conclusionWe have identified promising antigen candidates for serological assays that could be used to diagnose PTB and which could be the basis of a much-needed, simple, rapid diagnostic test that would bring care closer to communities.

Indexed as

AdultAlgorithmsAntigens, BacterialDemographyEnzyme-Linked Immunosorbent AssayFemaleHumansMaleMiddle AgedMycolic AcidsPredictive Value of TestsSerologic TestsTuberculosis, PulmonaryYoung AdultAntigens, BacterialMycolic Acids

Identifiers

PMID28806423
PMCPMC5555574
OpenAlexW2750149117

What OpenQuestion holds

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LicenceCC BY
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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.