Evidence map›Paper›PMID 33024174›Full record

ArticleScientific reports2020

A simple RNA preparation method for SARS-CoV-2 detection by RT-qPCR.

Aniela Wozniak, Ariel Cerda, Catalina Ibarra-Henríquez, Valentina Sebastian, Grace Armijo, Liliana Lamig, Carolina Miranda, Marcela Lagos, Sandra Solari, Ana María Guzmán and 6 more

Open access · goldAbstract readValidation Study
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 9% 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

47 citing papers in PubMed, 2 syntheses or guidelines pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Clearance ofEClinicalMedicine · 2026
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  5. New mouse model for inducible hACE2 expression enables to dissect SARS-CoV-2 pathology beyond the respiratory system.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
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  6. Article
  7. Comprehensive Review on Viral RNA Extraction Strategies for Enhanced Molecular Diagnostics.Interdisciplinary perspectives on infectious diseases · 2025
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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

16 authors at 1 institution in 1 country.

Aniela Wozniak *Department Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Ariel Cerda *Department Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Catalina Ibarra-Henríquez *Department Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Valentina SebastianLaboratorio de Microbiología. Servicio de Laboratorios Clínicos. Red de Salud UC-CHRISTUS, Santiago, Chile.
Grace ArmijoDepartment Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Liliana LamigDepartment Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Carolina MirandaLaboratorio de Microbiología. Servicio de Laboratorios Clínicos. Red de Salud UC-CHRISTUS, Santiago, Chile.
Marcela LagosDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Sandra SolariDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Ana María GuzmánDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Teresa QuirogaDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Susan HitschfeldDepartment Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Eleodoro RiverasDepartment Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile.
Marcela FerrésDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile.
Rodrigo A GutiérrezDepartment Molecular Genetics and Microbiology, School of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O`Higgins 340, Santiago, Chile. rgutierrez@bio.puc.cl.
Patricia GarcíaDepartment Clinical Laboratories, School of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4686, Santiago, Chile. pgarciacan@uc.cl.
Pontificia Universidad Católica de Chile · CL

Funding

Fondo de Desarrollo de Áreas Prioritarias (FONDAP) Center for Genome Regulation 15090007Fondo Nacional de Desarrollo Científico y Tecnológico 1180759
6 · The paper itself

Abstract

The technique RT-qPCR for viral RNA detection is the current worldwide strategy used for early detection of the novel coronavirus SARS-CoV-2. RNA extraction is a key pre-analytical step in RT-qPCR, often achieved using commercial kits. However, the magnitude of the COVID-19 pandemic is causing disruptions to the global supply chains used by many diagnostic laboratories to procure the commercial kits required for RNA extraction. Shortage in these essential reagents is even more acute in developing countries with no means to produce kits locally. We sought to find an alternative procedure to replace commercial kits using common reagents found in molecular biology laboratories. Here we report a method for RNA extraction that takes about 40 min to complete ten samples, and is not more laborious than current commercial RNA extraction kits. We demonstrate that this method can be used to process nasopharyngeal swab samples and yields RT-qPCR results comparable to those obtained with commercial kits. Most importantly, this procedure can be easily implemented in any molecular diagnostic laboratory. Frequent testing is crucial for individual patient management as well as for public health decision making in this pandemic. Implementation of this method could maintain crucial testing going despite commercial kit shortages.

Indexed as

Real-Time Polymerase Chain ReactionBetacoronavirusCoronavirus InfectionsCOVID-19Diagnostic Tests, RoutineHot TemperatureHumansHydrogen-Ion ConcentrationIndicators and ReagentsPandemicsPneumonia, ViralReagent Kits, DiagnosticRNA, ViralSARS-CoV-2Indicators and ReagentsReagent Kits, DiagnosticRNA, Viral

Identifiers

PMID33024174
PMCPMC7538882
OpenAlexW3092609341

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.