Evidence map›Paper›PMID 26062615›Full record

ArticleBMC developmental biology2015

Validating reference microRNAs for normalizing qRT-PCR data in bovine oocytes and preimplantation embryos.

Mahdi Mahdipour, Helena T A van Tol, Tom A E Stout, Bernard A J Roelen

Open access · hybridAbstract read
In one paragraph

Article in BMC developmental biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 35 citations in OpenAlex.

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  14. Effect ofAsian-Australasian journal of animal sciences · 2017
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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 at 1 institution in 1 country.

Mahdi MahdipourDepartment of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands. m.mahdipour@uu.nl.
Helena T A van TolDepartment of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands. h.t.a.vantol@uu.nl.
Tom A E StoutDepartment of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands. t.a.e.stout@uu.nl.
Bernard A J RoelenDepartment of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584, CM, Utrecht, The Netherlands. b.a.j.roelen@uu.nl.
Utrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMicroRNAs (miRNAs) are small noncoding RNAs that act as post-transcriptional regulators of gene targets. Accurate quantification of miRNA expression using validated internal controls should aid in the understanding of their role in epigenetic modification of genome function. To date, most studies that have examined miRNA expression levels have used the global mean expression of all expressed genes or the expression of reference mRNAs or nuclear RNAs for normalization.

resultsWe analyzed the suitability of a number of miRNAs as potential expression normalizers in bovine oocytes and early embryos, and porcine oocytes. The stages examined were bovine oocytes at the germinal vesicle (GV) and metaphase II stages, bovine zygotes, 2, 4 and 8 cell embryos, morulae and blastocysts, as well as porcine cumulus oocyte complexes, GV, metaphase I and II oocytes. qRT-PCR was performed to quantify expression of miR-93, miR-103, miR-26a, miR-191, miR-23b, Let-7a and U6 for bovine samples and miR-21, miR-26a, miR-93, miR-103, miR-148a, miR-182 and miR-191 for porcine oocytes. The average starting material for each sample was determined using specific standard curves for each primer set. Subsequently, geNorm and BestKeeper software were used to identify a set of stably expressed miRNAs. Stepwise removal to determine the optimum number of reference miRNAs identified miR-93 and miR-103 as the most stably expressed in bovine samples and miR-26a, miR-191 and miR-93 in porcine samples.

conclusionsThe combination of miR-93 and miR-103 is optimal for normalizing miRNA expression for qPCR experiments on bovine oocytes and preimplantation embryos; the preferred combination for porcine oocytes is miR-26a, miR-191 and miR-93.

Indexed as

TranscriptomeAnimalsBlastocystCattleMicroRNAsOocytesReal-Time Polymerase Chain ReactionSpecies SpecificitySwineMicroRNAs

Identifiers

PMID26062615
PMCPMC4464232
OpenAlexW1561703595

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.