Evidence map›Paper›PMID 27906100›Full record

ArticleParasites & vectors2016

An isothermal DNA amplification method for detection of Onchocerca volvulus infection in skin biopsies.

Ole Lagatie, Michelle Merino, Linda Batsa Debrah, Alexander Y Debrah, Lieven J Stuyver

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. DetectingPathogens (Basel, Switzerland) · 2024
    Review
  6. Review
  7. Procedure for Handling and Storage ofTropical medicine and infectious disease · 2023
    Article
  8. Review
  9. Article
  10. Whole blood transcriptome analysis in onchocerciasis.Current research in parasitology & vector-borne diseases · 2022
    Article
  11. LAMP in Neglected Tropical Diseases: A Focus on Parasites.Diagnostics (Basel, Switzerland) · 2021
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. NTD Diagnostics for Disease Elimination: A Review.Diagnostics (Basel, Switzerland) · 2020
    Review
  17. Article
  18. Article
  19. Review
  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 3 institutions in 2 countries.

Ole LagatieJanssen Diagnostics, Janssen R&D, Turnhoutseweg 30, 2340, Beerse, Belgium. olagatie@its.jnj.com.
Michelle MerinoJanssen Diagnostics, Janssen R&D, Turnhoutseweg 30, 2340, Beerse, Belgium.
Linda Batsa DebrahKumasi Centre for Collaborative Research into Tropical medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Alexander Y DebrahFaculty of Allied Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Lieven J StuyverJanssen Diagnostics, Janssen R&D, Turnhoutseweg 30, 2340, Beerse, Belgium.
Janssen (Belgium) · BEKumasi Centre for Collaborative Research in Tropical Medicine · GHKwame Nkrumah University of Science and Technology · GH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiagnostic procedures for the diagnosis of infection with the nematode parasite Onchocerca volvulus are currently based on the microscopic detection of microfilariae in skin biopsies. Alternative approaches based on amplification of parasitic DNA in these skin biopsies are currently being explored. Mostly this is based on the detection of the O-150 repeat sequence using PCR based techniques.

methodsAn isothermal, loop-mediated amplification method has been designed using the mitochondrial O. volvulus cox1 gene as a target.

resultsAnalysis of dilution series of synthetic DNA containing the targeted sequence show a non-linear dose-response curve, as is usually the case for isothermal amplification methods. Evaluation of cross-reactivity with the heterologous sequence from the closely related parasites Wuchereria bancrofti, Loa loa and Brugia malayi demonstrated strong specificity, as none of these sequences was amplified. The assay however amplified both O. volvulus and O. ochengi DNA, but with a different melting point that can be used to discriminate between the species. Evaluation of this assay in a set of skin snip biopsies collected in an endemic area in Ghana showed a high correlation with O-150 qPCR and also demonstrated a similar sensitivity. Compared to qPCR, LAMP had a sensitivity of 88.2% and a specificity of 99.2%.

conclusionsWe have developed a sensitive and specific loop-mediated amplification method for detection of O. volvulus DNA in skin biopsies that is capable of providing results within 30 min.

Indexed as

AdolescentAdultAgedAged, 80 and overAnimalsBiopsyCyclooxygenase 1DNA, HelminthFemaleGhanaHumansMaleMiddle AgedMitochondrial ProteinsMolecular Diagnostic TechniquesNucleic Acid Amplification TechniquesCyclooxygenase 1DNA, HelminthMitochondrial Proteinscox1DiagnosticDNAIsothermalLAMPOnchocerca volvulusOnchocerciasisRiver blindnessSkin biopsy

Identifiers

PMID27906100
PMCPMC5134125
OpenAlexW2559470376

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.