Evidence map›Paper›PMID 26982581›Full record

ArticlePloS one2016

Detection of Mycobacterium ulcerans DNA in the Environment, Ivory Coast.

Roger Bi Diangoné Tian, Sébastian Niamké, Hervé Tissot-Dupont, Michel Drancourt

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

23 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
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  3. Systematic review: Global host range, case fatality and detection rates ofJournal of clinical tuberculosis and other mycobacterial diseases · 2024
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  6. Linking theOne health (Amsterdam, Netherlands) · 2021
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  7. Article
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  11. DisseminatedThe American journal of tropical medicine and hygiene · 2019
    Article
  12. The changing epidemiology worldwide ofEpidemiology and infection · 2018
    Article
  13. Article
  14. Review
  15. Potential Animal Reservoir ofTropical medicine and infectious disease · 2018
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Buruli Ulcer: a Review of the Current Knowledge.Current tropical medicine reports · 2018
    Review
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

4 authors at 3 institutions in 2 countries.

Roger Bi Diangoné TianAix Marseille Université, URMITE, UMR, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine, Marseille, France.
Sébastian NiamkéLaboratoire de biotechnologies, UFR Biosciences, Université Félix Houphouet Boigny Abidjan, Côte d'Ivoire.
Hervé Tissot-DupontAix Marseille Université, URMITE, UMR, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine, Marseille, France.
Michel DrancourtAix Marseille Université, URMITE, UMR, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine, Marseille, France.
Aix-Marseille Université · FRCentre National de la Recherche Scientifique · FRUniversité Félix Houphouët-Boigny · CI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIvory Coast is a West African country with the highest reported cases of Buruli ulcer, a disabling subcutaneous infection due to Mycobacterium ulcerans. However, the prevalence of environmental M. ulcerans is poorly known in this country.

methodsWe collected 496 environmental specimens consisting of soil (n = 100), stagnant water (n = 200), plants (n = 100) and animal feces (n = 96) in Ivory Coast over five months in the dry and wet seasons in regions which are free of Buruli ulcer (control group A; 250 specimens) and in regions where the Buruli ulcer is endemic (group B; 246 specimens). After appropriate total DNA extraction incorporating an internal control, the M. ulcerans IS2404 and KR-B gene were amplified by real-time PCR in samples. In parallel, a calibration curve was done for M. ulcerans Agy99 IS2404 and KR-B gene.

resultsOf 460 samples free of PCR inhibition, a positive real-time PCR detection of insertion sequence IS2404 and KR-B gene was observed in 1/230 specimens in control group A versus 9/230 specimens in group B (P = 0.02; Fisher exact test). Positive specimens comprised seven stagnant water specimens, two feces specimens confirmed to be of Thryonomys swinderianus (agouti) origin by real-time PCR of the cytb gene; and one soil specimen. Extrapolation from the calibration curves indicated low inoculums ranging from 1 to 102 mycobacteria/mL.

conclusionThis study confirms the presence of M. ulcerans in the watery environment surrounding patients with Buruli ulcer in Ivory Coast. It suggests that the agouti, which is in close contacts with populations, could play a role in the environmental cycle of M. ulcerans, as previously suggested for the closely related possums in Australia.

Indexed as

Soil MicrobiologyAnimalsCote d'IvoireDNA, BacterialFecesMycobacterium ulceransReal-Time Polymerase Chain ReactionDNA, Bacterial

Identifiers

PMID26982581
PMCPMC4794205
OpenAlexW2298690642

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.