Evidence map›Paper›PMID 33657176›Full record

ArticlePloS one2021

Development of a multiplex Loop-Mediated Isothermal Amplification (LAMP) assay for on-site diagnosis of SARS CoV-2.

Woong Sik Jang, Da Hye Lim, Jung Yoon, Ahran Kim, Minsup Lim, Jeonghun Nam, Richard Yanagihara, Sook-Won Ryu, Bo Kyeung Jung, Nam-Hee Ryoo and 1 more

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
–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

44 citing papers in PubMed.

  1. Article
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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

11 authors.

Woong Sik JangEmergency Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Da Hye LimDepartments of Laboratory Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Jung YoonDepartments of Laboratory Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Ahran KimDepartments of Laboratory Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Minsup LimEmergency Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Jeonghun NamEmergency Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.
Richard YanagiharaPacific Center for Emerging Infectious Diseases Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI, United States of America.
Sook-Won RyuDepartment of Laboratory Medicine, Kangwon National University, School of Medicine, Kangwondo, Republic of Korea.
Bo Kyeung JungDepartment of Laboratory Medicine, Dankook University College of Medicine, Cheonan, Korea.
Nam-Hee RyooDepartment of Laboratory Medicine, Dongsan Medical Center, Keimyung University, Daegu, Korea.
Chae Seung LimDepartments of Laboratory Medicine, College of Medicine, Korea University Guro Hospital, Seoul, Republic of Korea.ORCID 0000-0002-7765-0840

Funding

PROVIDE RABBITS, RATS MICE, HAMSTERS GERBILS, GUINEA PIGS27307C0012 · NIEHS · PI BOLEN, WAYNE · 2007 to 2007
$1.0M
NIEHS NIH HHS 27307C0012
6 · The paper itself

Abstract

A newly identified coronavirus, designated as severe acute respiratory syndrome coronavirus 2 (SARS CoV-2), has spread rapidly from its epicenter in China to more than 150 countries across six continents. In this study, we have designed three reverse-transcription loop-mediated isothermal amplification (RT-LAMP) primer sets to detect the RNA-dependent RNA polymerase (RdRP), Envelope (E) and Nucleocapsid protein (N) genes of SARS CoV-2. For one tube reaction, the detection limits for five combination SARS CoV-2 LAMP primer sets (RdRP/E, RdRP/N, E/N, RdRP/E/N and RdRP/N/Internal control (actin beta)) were evaluated with a clinical nasopharyngeal swab sample. Among the five combination, the RdRP/E and RdRP/N/IC multiplex LAMP assays showed low detection limits. The sensitivity and specificity of the RT-LAMP assay were evaluated and compared to that of the widely used Allplex™ 2019-nCoV Assay (Seegene, Inc., Seoul, South Korea) and PowerChek™ 2019-nCoV Real-time PCR kit (Kogenebiotech, Seoul, South Korea) for 130 clinical samples from 91 SARS CoV-2 patients and 162 NP specimens from individuals with (72) and without (90) viral respiratory infections. The multiplex RdRP (FAM)/N (CY5)/IC (Hex) RT-LAMP assay showed comparable sensitivities (RdRP: 93.85%, N: 94.62% and RdRP/N: 96.92%) to that of the Allplex™ 2019-nCoV Assay (100%) and superior to those of PowerChek™ 2019-nCoV Real-time PCR kit (RdRP: 92.31%, E: 93.85% and RdRP/E: 95.38%).

Indexed as

Clinical Laboratory TechniquesCoronavirus InfectionsCOVID-19COVID-19 TestingDNA PrimersHumansMolecular Diagnostic TechniquesNucleic Acid Amplification TechniquesNucleocapsid ProteinsReal-Time Polymerase Chain ReactionReverse TranscriptionRNA, ViralSARS-CoV-2Sensitivity and SpecificityDNA PrimersNucleocapsid ProteinsRNA, Viral

Identifiers

PMID33657176
PMCPMC7928493

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.