Evidence map›Paper›PMID 25299656›Full record

ArticlePloS one2014

A simple isothermal DNA amplification method to screen black flies for Onchocerca volvulus infection.

Andy Alhassan, Benjamin L Makepeace, Elwyn James LaCourse, Mike Y Osei-Atweneboana, Clotilde K S Carlow

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-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

22 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Pathogens (Basel, Switzerland) · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. LAMP in Neglected Tropical Diseases: A Focus on Parasites.Diagnostics (Basel, Switzerland) · 2021
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Comparison of PCR Methods forThe American journal of tropical medicine and hygiene · 2018
    Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 3 countries.

Andy AlhassanDivision of Genome Biology, New England Biolabs, Ipswich, Massachusetts, United States of America.
Benjamin L MakepeaceInstitute of Infection & Global Health, University of Liverpool, Liverpool, United Kingdom.
Elwyn James LaCourseLiverpool School of Tropical Medicine, Liverpool, United Kingdom.
Mike Y Osei-AtweneboanaCouncil for Scientific and Industrial Research, Water Research Institute, Accra, Ghana.
Clotilde K S CarlowDivision of Genome Biology, New England Biolabs, Ipswich, Massachusetts, United States of America.
New England Biolabs (United States) · USCouncil for Scientific and Industrial Research · GHLiverpool School of Tropical Medicine · GBUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Onchocerciasis is a debilitating neglected tropical disease caused by infection with the filarial parasite Onchocerca volvulus. Adult worms live in subcutaneous tissues and produce large numbers of microfilariae that migrate to the skin and eyes. The disease is spread by black flies of the genus Simulium following ingestion of microfilariae that develop into infective stage larvae in the insect. Currently, transmission is monitored by capture and dissection of black flies and microscopic examination of parasites, or using the polymerase chain reaction to determine the presence of parasite DNA in pools of black flies. In this study we identified a new DNA biomarker, encoding O. volvulus glutathione S-transferase 1a (OvGST1a), to detect O. volvulus infection in vector black flies. We developed an OvGST1a-based loop-mediated isothermal amplification (LAMP) assay where amplification of specific target DNA is detectable using turbidity or by a hydroxy naphthol blue color change. The results indicated that the assay is sensitive and rapid, capable of detecting DNA equivalent to less than one microfilaria within 60 minutes. The test is highly specific for the human parasite, as no cross-reaction was detected using DNA from the closely related and sympatric cattle parasite Onchocerca ochengi. The test has the potential to be developed further as a field tool for use in the surveillance of transmission before and after implementation of mass drug administration programs for onchocerciasis.

Indexed as

AnimalsBase SequenceCattleCattle DiseasesGlutathione TransferaseHumansInsect VectorsLarvaMicrofilariaeMolecular Sequence DataNucleic Acid Amplification TechniquesOnchocerca volvulusOnchocerciasisSequence AlignmentSimuliidaeGlutathione Transferase

Identifiers

PMID25299656
PMCPMC4191976
OpenAlexW2035219286

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.