Evaluation of reference gene suitability for quantitative expression analysis by quantitative polymerase chain reaction 
in the mandibular condyle of sheep

Jiang,Xin; Xue,Yang; Zhou,Hongzhi; Li,Shouhong; Zhang,Zongmin; Hou,Rui; Ding,Yuxiang; Hu,Kaijin

doi:10.3892/mmr.2015.4128

October-2015 Volume 12 Issue 4

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October-2015 Volume 12 Issue 4

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Article Open Access

Evaluation of reference gene suitability for quantitative expression analysis by quantitative polymerase chain reaction in the mandibular condyle of sheep

Authors:
- Xin Jiang
- Yang Xue
- Hongzhi Zhou
- Shouhong Li
- Zongmin Zhang
- Rui Hou
- Yuxiang Ding
- Kaijin Hu
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Affiliations: State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China, State Key Laboratory of Military Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China, Department of Oral and Maxillofacial Surgery, Dongfeng Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, P.R. China

Copyright: © Jiang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Pages: 5633-5640
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Published online on: July 28, 2015

https://doi.org/10.3892/mmr.2015.4128
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Abstract

Reference genes are commonly used as a reliable approach to normalize the results of quantitative polymerase chain reaction (qPCR), and to reduce errors in the relative quantification of gene expression. Suitable reference genes belonging to numerous functional classes have been identified for various types of species and tissue. However, little is currently known regarding the most suitable reference genes for bone, specifically for the sheep mandibular condyle. Sheep are important for the study of human bone diseases, particularly for temporomandibular diseases. The present study aimed to identify a set of reference genes suitable for the normalization of qPCR data from the mandibular condyle of sheep. A total of 12 reference genes belonging to various functional classes were selected, and the expression stability of the reference genes was determined in both the normal and fractured area of the sheep mandibular condyle. RefFinder, which integrates the following currently available computational algorithms: geNorm, NormFinder, BestKeeper, and the comparative ΔCt method, was used to compare and rank the candidate reference genes. The results obtained from the four methods demonstrated a similar trend: RPL19, ACTB, and PGK1 were the most stably expressed reference genes in the sheep mandibular condyle. As determined by RefFinder comprehensive analysis, the results of the present study suggested that RPL19 is the most suitable reference gene for studies associated with the sheep mandibular condyle. In addition, ACTB and PGK1 may be considered suitable alternatives.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Evaluation of reference gene suitability for quantitative expression analysis by quantitative polymerase chain reaction in the mandibular condyle of sheep

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