Evidence map›Paper›PMID 33493196›Full record

ArticlePLoS neglected tropical diseases2021

Development of a loop-mediated isothermal amplification (LAMP) method for specific detection of Mycobacterium bovis.

Thoko Flav Kapalamula, Jeewan Thapa, Mwangala Lonah Akapelwa, Kyoko Hayashida, Stephen V Gordon, Bernard Mudenda Hang' Ombe, Musso Munyeme, Eddie Samuneti Solo, Precious Bwalya, Mirriam Ethel Nyenje and 3 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2021. 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
1.1field-weighted citation impact, top 20% 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, 25 citations in OpenAlex.

  1. Detection ofAnimals : an open access journal from MDPI · 2026
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  10. Direct detection ofJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2023
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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

13 authors at 5 institutions in 3 countries.

Thoko Flav KapalamulaDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0003-1127-3138
Jeewan ThapaDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-3447-6483
Mwangala Lonah AkapelwaDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-8252-2798
Kyoko HayashidaDivision of Collaborations and Education, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.
Stephen V GordonInternational Collaboration Unit, Research Center for Zoonosis Contsrol, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-4833-5542
Bernard Mudenda Hang' OmbeSchool of Veterinary Medicine, University of Zambia, Lusaka, Zambia.
Musso MunyemeSchool of Veterinary Medicine, University of Zambia, Lusaka, Zambia.ORCID 0000-0001-7224-1071
Eddie Samuneti SoloDepartment of Pathology and Microbiology, University Teaching Hospital, Ministry of Health, Lusaka, Zambia.
Precious BwalyaDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-4212-4816
Mirriam Ethel NyenjeCommunity Health Sciences Unit, National Tuberculosis Reference Laboratory, Lilongwe, Malawi.ORCID 0000-0001-9251-6482
Aki TamaruDepartment of Microbiology, Osaka Institute of Public Health, Osaka, Japan.ORCID 0000-0002-9078-7972
Yasuhiko SuzukiDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-1313-1494
Chie NakajimaDivision of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.ORCID 0000-0002-9194-1062
Hokkaido University · JPMinistry of Health · ZMUniversity of Zambia · ZMOsaka Prefectural Institute of Public Health · JPUniversity College Dublin · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bovine tuberculosis (TB) caused by Mycobacterium bovis is a significant health threat to cattle and a zoonotic threat for humans in many developing countries. Rapid and accurate detection of M. bovis is fundamental for controlling the disease in animals and humans, and for the proper treatment of patients as one of the first-line anti-TB drug, pyrazinamide, is ineffective against M. bovis. Currently, there are no rapid, simplified and low-cost diagnostic methods that can be easily integrated for use in many developing countries. Here, we report the development of a loop-mediated isothermal amplification (LAMP) assay for specific identification of M. bovis by targeting the region of difference 4 (RD4), a 12.7 kb genomic region that is deleted solely in M. bovis. The assay's specificity was evaluated using 139 isolates comprising 65 M. bovis isolates, 40 M. tuberculosis isolates, seven M. tuberculosis complex reference strains, 22 non-tuberculous mycobacteria and five other bacteria. The established LAMP detected only M. bovis isolates as positive and no false positives were observed using the other mycobacteria and non-mycobacteria tested. Our LAMP assay detected as low as 10 copies of M. bovis genomic DNA within 40 minutes. The procedure of LAMP is simple with an incubation at a constant temperature. Results are observed with the naked eye by a color change, and there is no need for expensive equipment. The established LAMP can be used for the detection of M. bovis infections in cattle and humans in resource-limited areas.

Indexed as

AnimalsCattleHumansMolecular Diagnostic TechniquesMycobacterium bovisNucleic Acid Amplification TechniquesSensitivity and Specificity

Identifiers

PMID33493196
PMCPMC7833227
OpenAlexW3122822524

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.