Evidence map›Paper›PMID 23633405›Full record

ArticleThe Journal of infectious diseases2013

Highly sensitive detection of malaria parasitemia in a malaria-endemic setting: performance of a new loop-mediated isothermal amplification kit in a remote clinic in Uganda.

Heidi Hopkins, Iveth J González, Spencer D Polley, Patrick Angutoko, John Ategeka, Caroline Asiimwe, Bosco Agaba, Daniel J Kyabayinze, Colin J Sutherland, Mark D Perkins and 1 more

Erratum issuedAbstract readComparative StudyEvaluation Study
In one paragraph

Article in The Journal of infectious diseases, 2013. 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 162 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
162citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

162 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  11. Intermittent Preventive Treatment for Malaria in Pregnancy: Optimization of Target Concentrations of Dihydroartemisinin-Piperaquine.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
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  16. Recombinase-Aided Loop-Mediated Isothermal Amplification on Human Plasmodium knowlesi.The American journal of tropical medicine and hygiene · 2024
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102 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

11 authors.

Heidi HopkinsFoundation for Innovative New Diagnostics, Uganda Ministry of Health, Kampala, Uganda.
Iveth J González
Spencer D Polley
Patrick Angutoko
John Ategeka
Caroline Asiimwe
Bosco Agaba
Daniel J Kyabayinze
Colin J Sutherland
Mark D Perkins
David Bell

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCurrent malaria diagnostic tests, including microscopy and antigen-detecting rapid tests, cannot reliably detect low-density infections. Molecular methods such as polymerase chain reaction (PCR) are highly sensitive but remain too complex for field deployment. A new commercial molecular assay based on loop-mediated isothermal amplification (LAMP) was assessed for field use.

methodsMalaria LAMP (Eiken Chemical, Japan) was evaluated for samples from 272 outpatients at a rural Ugandan clinic and compared with expert microscopy, nested PCR, and quantitative PCR (qPCR). Two technicians performed the assay after 3 days of training, using 2 alternative blood sample-preparation methods and visual interpretation of results by fluorescence assay.

resultsCompared with 3-well nested PCR, the sensitivity of both LAMP and single-well nested PCR was 90%; the microscopy sensitivity was 51%. For samples with a Plasmodium falciparum qPCR titer of ≥ 2 parasites/µL, LAMP sensitivity was 97.8% (95% confidence interval, 93.7%-99.5%). Most false-negative LAMP results involved samples with parasitemia levels detectable by 3-well nested PCR but very low or undetectable by qPCR.

conclusionsMalaria LAMP in a remote Ugandan clinic achieved sensitivity similar to that of single-well nested PCR in a United Kingdom reference laboratory. LAMP dramatically lowers the detection threshold achievable in malaria-endemic settings, providing a new tool for diagnosis, surveillance, and screening in elimination strategies.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolEndemic DiseasesFemaleHumansMalaria, FalciparumMaleMiddle AgedMolecular Diagnostic TechniquesNucleic Acid Amplification TechniquesParasitemiaParasitologyAfricadiagnosisDNALAMPloop-mediated isothermal amplificationmalariamolecular diagnosisPCRPlasmodium falciparumpolymerase chain reactionsensitivity and specificityUganda

Identifiers

PMID23633405
PMCPMC3719898

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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.