Evidence map›Paper›PMID 33160015›Full record

ArticleJournal of virological methods2021

SARS-CoV-2: Comparative analysis of different RNA extraction methods.

Cecilia Ambrosi, Carla Prezioso, Paola Checconi, Daniela Scribano, Meysam Sarshar, Maurizio Capannari, Carlo Tomino, Massimo Fini, Enrico Garaci, Anna Teresa Palamara and 2 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Journal of virological methods, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 11% 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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Comprehensive Review on Viral RNA Extraction Strategies for Enhanced Molecular Diagnostics.Interdisciplinary perspectives on infectious diseases · 2025
    Review
  5. Article
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  7. Article
  8. RT-qPCR Testing and Performance Metrics in the COVID-19 Era.International journal of molecular sciences · 2024
    Review
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  14. Review
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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

12 authors at 6 institutions in 1 country.

Cecilia AmbrosiSan Raffaele Roma Open University, 00166 Rome, Italy; IRCCS San Raffaele Pisana, 00166 Rome, Italy. Electronic address: cecilia.ambrosi@uniroma5.it.
Carla PreziosoIRCCS San Raffaele Pisana, 00166 Rome, Italy; Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy.
Paola ChecconiSan Raffaele Roma Open University, 00166 Rome, Italy; IRCCS San Raffaele Pisana, 00166 Rome, Italy.
Daniela ScribanoDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy; Dani Di Giò Foundation-Onlus, 00193 Rome, Italy.
Meysam SarsharDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur Italia- Cenci Bolognetti Foundation, 00185 Rome, Italy; Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy.
Maurizio CapannariElettrobiochimica s.r.l., 00159 Rome, Italy.
Carlo TominoSan Raffaele Roma Open University, 00166 Rome, Italy; IRCCS San Raffaele Pisana, 00166 Rome, Italy.
Massimo FiniIRCCS San Raffaele Pisana, 00166 Rome, Italy.
Enrico GaraciSan Raffaele Roma Open University, 00166 Rome, Italy.
Anna Teresa PalamaraIRCCS San Raffaele Pisana, 00166 Rome, Italy; Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur Italia- Cenci Bolognetti Foundation, 00185 Rome, Italy.
Giovanna De ChiaraInstitute of Translational Pharmacology, National Research Council (CNR), Rome, Italy.
Dolores LimongiSan Raffaele Roma Open University, 00166 Rome, Italy; IRCCS San Raffaele Pisana, 00166 Rome, Italy.
Vita-Salute San Raffaele University · ITIRCCS Ospedale San Raffaele · ITBambino Gesù Children's Hospital · ITFondazione Gimema Onlus · ITIstituto di Farmacologia Traslazionale · ITSan Raffaele University of Rome · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of the COVID-19 pandemic. Although other diagnostic methods have been introduced, detection of viral genes on oro- and nasopharyngeal swabs by reverse-transcription real time-PCR (rRT-PCR) assays is still the gold standard. Efficient viral RNA extraction is a prerequisite for downstream performance of rRT-PCR assays. Currently, several automatic methods that include RNA extraction are available. However, due to the growing demand, a shortage in kit supplies could be experienced in several labs. For these reasons, the use of different commercial or in-house protocols for RNA extraction may increase the possibility to analyze high number of samples. Herein, we compared the efficiency of RNA extraction of three different commercial kits and an in-house extraction protocol using synthetic ssRNA standards of SARS-CoV-2 as well as in oro-nasopharyngeal swabs from six COVID-19-positive patients. It was concluded that tested commercial kits can be used with some modifications for the detection of the SARS-CoV-2 genome by rRT-PCR approaches, although with some differences in RNA yields. Conversely, EXTRAzol reagent was the less efficient due to the phase separation principle at the basis of RNA extraction. Overall, this study offers alternative suitable methods to manually extract RNA that can be taken into account for SARS-CoV-2 detection.

Indexed as

COVID-19COVID-19 Nucleic Acid TestingDiagnostic Tests, RoutineGenes, ViralHumansLimit of DetectionPharynxReproducibility of ResultsRNA, ViralSARS-CoV-2RNA, ViralOro- nasopharyngeal swabsRNA extractionrRT-PCRSARS-CoV-2

Identifiers

PMID33160015
PMCPMC7640895
OpenAlexW3095936245

What OpenQuestion holds

Textmetadata
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.