Evidence map›Paper›PMID 29615801›Full record

ArticleScientific reports2018

Real-time Detection and Monitoring of Loop Mediated Amplification (LAMP) Reaction Using Self-quenching and De-quenching Fluorogenic Probes.

Vijay J Gadkar, David M Goldfarb, Soren Gantt, Peter A G Tilley

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 1 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

89 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  14. Development of an RT-LAMP Assay for DetectingDiagnostics (Basel, Switzerland) · 2025
    Article
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29 more citing papers are in PubMed but not listed here.

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.

Vijay J GadkarDepartment of Pathology & Laboratory Medicine, Division of Microbiology, Virology & Infection Control, Children's & Women's Health Center of British Columbia, 4500 Oak St, Vancouver, V6H 3N1, Canada. vijay.gadkar@cw.bc.ca.
David M GoldfarbDepartment of Pathology & Laboratory Medicine, Division of Microbiology, Virology & Infection Control, Children's & Women's Health Center of British Columbia, 4500 Oak St, Vancouver, V6H 3N1, Canada.
Soren GanttDepartment of Pathology & Laboratory Medicine, Division of Microbiology, Virology & Infection Control, Children's & Women's Health Center of British Columbia, 4500 Oak St, Vancouver, V6H 3N1, Canada.
Peter A G TilleyDepartment of Pathology & Laboratory Medicine, Division of Microbiology, Virology & Infection Control, Children's & Women's Health Center of British Columbia, 4500 Oak St, Vancouver, V6H 3N1, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loop-mediated isothermal amplification (LAMP) is an isothermal nucleic acid amplification (iNAAT) technique known for its simplicity, sensitivity and speed. Its low-cost feature has resulted in its wide scale application, especially in low resource settings. The major disadvantage of LAMP is its heavy reliance on indirect detection methods like turbidity and non-specific dyes, which often leads to the detection of false positive results. In the present work, we have developed a direct detection approach, whereby a labelled loop probe quenched in its unbound state, fluoresces only when bound to its target (amplicon). Henceforth, referred to as Fluorescence of Loop Primer Upon Self Dequenching-LAMP (FLOS-LAMP), it allows for the sequence-specific detection of LAMP amplicons. The FLOS-LAMP concept was validated for rapid detection of the human pathogen, Varicella-zoster virus, from clinical samples. The FLOS-LAMP had a limit of detection of 500 copies of the target with a clinical sensitivity and specificity of 96.8% and 100%, respectively. The high level of specificity is a major advance and solves one of the main shortcomings of the LAMP technology, i.e. false positives. Self-quenching/de-quenching probes were further used with other LAMP primer sets and different fluorophores, thereby demonstrating its versatility and adaptability.

Identifiers

PMID29615801
PMCPMC5883045

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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.