Evidence map›Paper›PMID 29258442›Full record

ArticleBMC genomics2017

A tissue-based approach to selection of reference genes for quantitative real-time PCR in a sheep osteoporosis model.

Felix Schulze, Deeksha Malhan, Thaqif El Khassawna, Christian Heiss, Anja Seckinger, Dirk Hose, Angela Rösen-Wolff

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 24% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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  16. Adult ovine chondrocytes in expansion culture adopt progenitor cell properties that are favorable for cartilage tissue engineering.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2020
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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

7 authors at 4 institutions in 1 country.

Felix SchulzeDepartment of Pediatrics, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
Deeksha MalhanExperimental Trauma Surgery, Justus-Liebig University, Aulweg 128, 35392, Giessen, Germany.
Thaqif El KhassawnaExperimental Trauma Surgery, Justus-Liebig University, Aulweg 128, 35392, Giessen, Germany.
Christian HeissExperimental Trauma Surgery, Justus-Liebig University, Aulweg 128, 35392, Giessen, Germany.
Anja SeckingerLabor für Myelomforschung, Medizinische Klinik V, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
Dirk HoseLabor für Myelomforschung, Medizinische Klinik V, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
Angela Rösen-WolffDepartment of Pediatrics, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany. Angela.Roesen-Wolff@uniklinikum-dresden.de.
University of Giessen · DEUniversity Hospital Carl Gustav Carus · DEHeidelberg University · DEUniversity Hospital Heidelberg · DE

Funding

Deutsche Forschungsgemeinschaft SFB/TR79, subprojects T1 and B12
6 · The paper itself

Abstract

backgroundIn order to better understand the multifactorial nature of osteoporosis, animal models are utilized and compared to healthy controls. Female sheep are well established as a model for osteoporosis induced by ovariectomy, calcium and vitamin D low diet, application of steroids, or a combination of these treatments. Transcriptional studies can be performed by applying quantitative real time PCR (RT-qPCR). RT-qPCR estimates mRNA-levels of target genes in relation to reference genes. A chosen set of reference genes should not show variation under experimental conditions. Currently, no standard reference genes are accepted for all tissue types and experimental conditions. Studies examining reference genes for sheep are rare and only one study described stable reference in mandibular bone. However, this type of bone differs from trabecular bone where most osteoporotic fractures occur. The present study aimed at identifying a set of reference genes for relative quantification of transcriptional activity of ovine spine bone and ovine in vitro differentiated mesenchymal stromal cells (MSC) for reliable comparability.

methodsTwelve candidate reference genes belonging to different functional classes were selected and their expression was measured from cultured ovMSCs (n = 18) and ovine bone samples (n = 16), respectively. RefFinder was used to rank the candidate genes.

resultsWe identified B2M, GAPDH, RPL19 and YWHAZ as the best combination of reference genes for normalization of RT-qPCR results for transcriptional analyses of these ovine samples.

conclusionThis study demonstrates the importance of applying a set of reference genes for RT-qPCR analysis in sheep. Based on our data we recommend using four identified reference genes for relative quantification of gene expression studies in ovine bone or for in vitro experiments with osteogenically differentiated ovine MSCs.

Indexed as

Transcription, GeneticAlgorithmsAnimalsBone and BonesCells, CulturedDisease Models, AnimalFemaleGene OntologyGenesOsteoporosisReal-Time Polymerase Chain ReactionReference StandardsSheepBestKeeperDelta Ct methodgeNormMSCNormFinderReference geneSheep

Identifiers

PMID29258442
PMCPMC5735898
OpenAlexW2776732827

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.