Evidence map›Paper›PMID 31077242›Full record

ArticleBMC research notes2019

Quantification of microRNA in plasma using probe based TaqMan assays: is microRNA purification required?

Helle Glud Binderup, Jonna Skov Madsen, Claus Lohman Brasen, Kim Houlind, Rikke Fredslund Andersen

Abstract read
In one paragraph

Article in BMC research notes, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 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

5 authors.

Helle Glud BinderupBiochemistry and Immunology, Lillebaelt Hospital, Sygehusvej 1, 6000, Kolding, Denmark. helle.glud.binderup@rsyd.dk.ORCID http://orcid.org/0000-0001-6698-9948
Jonna Skov MadsenBiochemistry and Immunology, Lillebaelt Hospital, Sygehusvej 1, 6000, Kolding, Denmark.
Claus Lohman BrasenBiochemistry and Immunology, Lillebaelt Hospital, Sygehusvej 1, 6000, Kolding, Denmark.
Kim HoulindDepartment of Vascular Surgery, Lillebaelt Hospital, Kolding, Denmark.
Rikke Fredslund AndersenBiochemistry and Immunology, Lillebaelt Hospital, Sygehusvej 1, 6000, Kolding, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCirculating microRNAs are promising diagnostics and prognostics biomarkers in a wide variety of diseases. However, there is a critical reproducibility challenge, which in part may be due to preanalytical factors. MicroRNA purification has been identified as the major contributor to the total intra assay variation, thus we found great interest in recent papers describing methods for direct quantification of circulating microRNAs without the purification step. With one exception, all the studies we identified where a direct quantification of circulating microRNAs had been performed were using SYBR Green chemistry. In our laboratory we use platelet-poor plasma and TaqMan assays for microRNA analysis, and thus we investigated whether we could adapt the procedures for the direct reverse transcription described by these studies to be used with our TaqMan assays.

resultsWe did not achieve valid results by direct quantification of selected microRNAs (miR-92a, miR-16 and miR-126) in platelet-poor plasma using TaqMan assays.

Indexed as

Biological AssayHumansMicroRNAsRNA ProbesMicroRNAsRNA ProbesDirect plasma RT-qPCRMicroRNASample preparationTaqMan assays

Identifiers

PMID31077242
PMCPMC6509816

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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.