Evidence map›Paper›PMID 31964966›Full record

ArticleScientific reports2020

Comparison of methods for miRNA isolation and quantification from ovine plasma.

Kathryn Wright, Kumudika de Silva, Auriol C Purdie, Karren M Plain

Abstract readComparative 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, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 3 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

47 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  17. Guidelines for mitochondrial RNA analysis.Molecular therapy. Nucleic acids · 2024
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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

4 authors.

Kathryn WrightThe University of Sydney, Faculty of Science, Sydney School of Veterinary Science, Sydney, Australia.ORCID http://orcid.org/0000-0001-6508-3386
Kumudika de SilvaThe University of Sydney, Faculty of Science, Sydney School of Veterinary Science, Sydney, Australia. Kumi.deSilva@sydney.edu.au.ORCID http://orcid.org/0000-0001-5973-5077
Auriol C PurdieThe University of Sydney, Faculty of Science, Sydney School of Veterinary Science, Sydney, Australia.ORCID http://orcid.org/0000-0003-1941-6658
Karren M PlainThe University of Sydney, Faculty of Science, Sydney School of Veterinary Science, Sydney, Australia.ORCID http://orcid.org/0000-0001-7126-9865

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

microRNA (miRNA) are promising candidates for disease biomarkers as they are abundant in circulation, highly stable in biological fluids and may yield diagnostic biomarker signatures. The reported issues with miRNA isolation using traditional RNA reagents necessitates the optimisation of miRNA isolation from challenging samples. In this study we compared six commercial RNA extraction kits to evaluate their ability to isolate miRNA from ovine plasma. We also compared three methods for quantification of small RNA extracted from plasma to determine the most reliable. Using minimal sample inputs of fresh and frozen plasma from five sheep, we compared the six kits (Kit A-F) using quantitative PCR. Operational factors were also assessed for each kit. Kits A and B provided the best detection of the miRNA qPCR reference genes across fresh and frozen samples (p < 0.001) followed by Kit C. The Qubit and microRNA assay provided the least variation (% CV 5.47, SEM ± 0.07), followed by the NanoDrop (% CV 7.01, SEM ± 0.92) and Agilent Bioanalyzer (% CV 59.21, SEM ± 1.31). We identify Kit A to be optimal for isolating miRNA from small volumes of fresh and frozen ovine plasma, and Kit B the top performing kit taking into consideration miRNA detection and operational factors. The Qubit fluorometer using a microRNA assay was the most reliable miRNA quantification method.

Indexed as

Reagent Kits, DiagnosticAnimalsBiomarkersMicroRNAsPlasmaPolymerase Chain ReactionRNA, MessengerSheepBiomarkersMicroRNAsReagent Kits, DiagnosticRNA, Messenger

Identifiers

PMID31964966
PMCPMC6972740

What OpenQuestion holds

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LicenceCC BY
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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.