Evidence map›Paper›PMID 29373577›Full record

ArticlePloS one2018

IgA and IgG against Mycobacterium tuberculosis Rv2031 discriminate between pulmonary tuberculosis patients, Mycobacterium tuberculosis-infected and non-infected individuals.

Fekadu Abebe, Mulugeta Belay, Mengistu Legesse, Franken K L M C, Tom H M Ottenhoff

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.2field-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

27 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  3. Circulating antibody signatures againstFrontiers in immunology · 2026
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  6. Host Immune Response toJournal of inflammation research · 2025
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  7. Review
  8. Article
  9. Article
  10. Article
  11. 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
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. AFrontiers in immunology · 2021
    Article
  18. Article
  19. Article
  20. Article
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 4 institutions in 4 countries.

Fekadu AbebeUniversity of Oslo, Faculty of Medicine, Institute of Health and Society, Department of Community Medicine and Global health, Oslo, Norway.ORCID 0000-0002-4368-1593
Mulugeta BelayCenter for Immuno-biology, Bart's and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Mengistu LegesseAddis Ababa University, Aklilu Lemma Institute of Pathobiology, Addis Ababa, Ethiopia.
Franken K L M CDepartment of Infectious Diseases, Leiden Medical Center, Leiden, the Netherlands.
Tom H M OttenhoffDepartment of Infectious Diseases, Leiden Medical Center, Leiden, the Netherlands.
Leiden University Medical Center · NLAddis Ababa University · ETQueen Mary University of London · GBUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As part of a major project to investigate protective and diagnostic immune markers against tuberculosis (TB), we measured antibody isotype responses to Mycobacterium tuberculosis (Mtb) antigens (LAM, Rv2031, and HBHA) in cohorts of 149 pulmonary tuberculosis patients (PTBP), 148 household contacts (HHCs), and 68 community controls (CCs) in an endemic setting. ELISA was used to measure levels of IgA, IgG, and IgM from sera of cohorts at baseline, and at 6 and 12 months from entry. The results show that there were significant differences in IgA, IgG, and IgM responses to the different antigens and in the three cohorts. At baseline, the level of IgM against RV2031 and LAM did not vary between cohorts, but the levels of IgA and IgG against Rv2031 were significantly higher in PTB patients than HHCs and CCs, followed by HHCs, and the lowest in CCs. In patients, there was a significant variation in antibody responses before and after chemotherapy. The levels of IgA and IgG against HBHA, and IgA against Rv2031 decreased significantly and remained low, while IgA and IgG against LAM increased significantly and remained high following chemotherapy. However, the levels of IgM against Rv2031 and LAM increased at 6 months but decreased again at 12 months. IgM against HBHA did not show any significant variation before and after chemotherapy. Similarly, there were also significant variations in antibody responses in HHCs over time. Our results show that there are significant variations in IgA, IgG and IgM responses to the different antigens and in the three cohorts, implying that not all antibody isotype responses are markers of clinical TB. In addition, the current and previous studies consistently show that IgA and IgG against Rv2031 discriminate between clinical disease, Mtb-infected and non-infected individuals.

Indexed as

Antigens, BacterialCase-Control StudiesCohort StudiesEnzyme-Linked Immunosorbent AssayHumansImmunoglobulin AImmunoglobulin GMycobacterium tuberculosisTuberculosis, PulmonaryAntigens, BacterialImmunoglobulin AImmunoglobulin G

Identifiers

PMID29373577
PMCPMC5786301
OpenAlexW2792240558

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.