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BMC Psychiatry
Published in: BMC Psychiatry 1/2020

Open Access 01-12-2020 | Antidepressant Drugs | Research article

Abnormal expression of rno_circRNA_014900 and rno_circRNA_005442 induced by ketamine in the rat hippocampus

Authors: Jing Mao, Tianmei Li, Di Fan, Hongli Zhou, Jianguo Feng, Li Liu, Chunxiang Zhang, Xiaobin Wang

Published in: BMC Psychiatry | Issue 1/2020

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Abstract

Background

Recent studies have shown that circular RNA (circRNA) is rich in microRNA (miRNA) binding sites. We have previously demonstrated that the antidepressant effect of ketamine is related to the abnormal expression of various miRNAs in the brain. This study determined the expression profile of circRNAs in the hippocampus of rats treated with ketamine.

Methods

The aberrantly expressed circRNAs in rat hippocampus after ketamine injection were analyzed by microarray chip, and we further validated these circRNAs by quantitative reverse-transcription PCR (qRT-PCR). The target genes of the different circRNAs were predicted using bioinformatic analyses, and the functions and signal pathways of these target genes were investigated by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses.

Results

Microarray analysis showed that five circRNAs were aberrantly expressed in rat hippocampus after ketamine injection (fold change > 2.0, p < 0.05). The results from the qRT-PCR showed that one of the circRNAs was significantly increased (rno_circRNA_014900; fold change = 2.37; p = 0.03), while one was significantly reduced (rno_circRNA_005442; fold change = 0.37; p = 0.01). We discovered a significant enrichment in several GO terms and pathways associated with depression.

Conclusion

Our findings showed the abnormal expression of ketamine-induced hippocampal circRNAs in rats.
Appendix
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Metadata
Title
Abnormal expression of rno_circRNA_014900 and rno_circRNA_005442 induced by ketamine in the rat hippocampus
Authors
Jing Mao
Tianmei Li
Di Fan
Hongli Zhou
Jianguo Feng
Li Liu
Chunxiang Zhang
Xiaobin Wang
Publication date
01-12-2020
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2020
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-019-2374-2

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