Evidence map›Paper›PMID 35906388›Full record

ArticleScientific reports2022

Validation and advantages of using novel RT-qPCR melting curve analysis assays for the identification of SARS-CoV-2 variants.

Sebastian Juul, Malene Roed Spiegelhauer, Mette Neve Petersen, Katharina Kirkegaard Flugt, Nikolaj Vestergaard Hansen, Helene Larsen, Per Bo Jensen, Ulf Bech Christensen, Rasmus Koefoed Petersen, Lennart Friis-Hansen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

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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

10 authors at 2 institutions in 1 country.

Sebastian JuulResearch & Development, Pentabase A/S, Petersmindevej 1A, 5000, Odense C, Denmark. Sej@pentabase.com.
Malene Roed SpiegelhauerDepartment of Clinical Biochemistry, Copenhagen University Hospital, Bispebjerg, Denmark.
Mette Neve PetersenDepartment of Clinical Biochemistry, Copenhagen University Hospital, Bispebjerg, Denmark.
Katharina Kirkegaard FlugtResearch & Development, Pentabase A/S, Petersmindevej 1A, 5000, Odense C, Denmark.
Nikolaj Vestergaard HansenResearch & Development, Pentabase A/S, Petersmindevej 1A, 5000, Odense C, Denmark.
Helene LarsenCenter for Diagnostics, DTU Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark.
Per Bo JensenDepartment of Clinical Biochemistry, Copenhagen University Hospital, Bispebjerg, Denmark.
Ulf Bech ChristensenResearch & Development, Pentabase A/S, Petersmindevej 1A, 5000, Odense C, Denmark.
Rasmus Koefoed PetersenResearch & Development, Pentabase A/S, Petersmindevej 1A, 5000, Odense C, Denmark.
Lennart Friis-HansenDepartment of Clinical Biochemistry, Copenhagen University Hospital, Bispebjerg, Denmark.
Copenhagen University Hospital · DKTechnical University of Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reverse transcription quantitative PCR (RT-qPCR) assays are gold standard in diagnosing SARS-CoV-2 infection and play a major role in viral subtyping for rapid detection and monitoring of important mutations, containing the spread of new virus variants. We wanted to compare RT-qPCR melting curve analysis assays to Sanger Sequencing for detection of variants within the SARS-CoV-2 spike glycoprotein and examined their sensitivity and specificity. Samples positive for SARS-CoV-2 (n = 663 + 82) were subtyped using both Sanger sequencing and five RT-qPCR melting curve analysis assays specific for the mutations N501Y, P681H, E484K, K417N/T, and N439K. The results of the two methods were compared. The training cohort and the clinical validation cohort showed equally, or significantly better sensitivity of the assays compared to the Sanger sequencing. The agreement of the Sanger sequencing and the assays ranged from 92.6 to 100% for the training cohort and 99.4-100% for the clinical validation. The sensitivity, specificity, and turn-around time of the RT-qPCR melting curve analysis assays are well-suited for clinical monitoring of VOCs, making the assays an important tool in contact tracing and risk stratification. Furthermore, the assays were able to indicate the presence of new mutations in the complementary sequence to the mutation-specific probes.

Indexed as

COVID-19SARS-CoV-2HumansMutationReverse TranscriptionSensitivity and Specificity

Identifiers

PMID35906388
PMCPMC9338320
OpenAlexW4288711340

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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.