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Circular RNAs (circRNAs) are a recently discovered type of noncoding RNA with diverse cellular functions related to their excellent stability; additionally, some circRNAs can bind and regulate microRNAs (miRNAs). The present study was designed to screen the differentially expressed circRNA in an acute seizure model of epilepsy in mice, analyze the related miRNA and mRNA, and study their participating functions and enrichment pathways. In order to obtain the differential expression of circRNA in epilepsy and infer their function, we used next\u2010generation sequencing and found significantly different transcripts. CIRI (circRNA identifier) software was used to predict circRNA from the hippocampus cDNA, EdgeR was applied for the differential circRNA analysis between samples, and Cytoscape 3.7.2 software was used to draw the network diagram. A total of 10,388 differentially expressed circRNAs were identified, of which 34 were upregulated and 66 were downregulated. Among them, mm9_circ_008777 and mm9_circ_004424 were the key upregulated genes, and their expression in the epilepsy group was verified using Quantitative real\u2010time PCR (QPCR). The analysis indicated that the extracted gene ontology terms and Kyoto Encyclopedia of Genes and Genomes pathways were closely related to several epilepsy\u2010associated processes. This study determined that mm9_circ_008777 and mm9_circ_004424 are potential biomarkers of epilepsy, which play important roles in epilepsy\u2010related pathways. These results could help improve the understanding of the biological mechanisms of circRNAs and epilepsy treatments.<\/jats:p>","DOI":"10.1002\/kjm2.12404","type":"journal-article","created":{"date-parts":[[2021,6,11]],"date-time":"2021-06-11T04:27:30Z","timestamp":1623385650000},"page":"803-811","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Differentially expressed <scp>circRNA<\/scp> and functional pathways in the hippocampus of epileptic mice based on next\u2010generation sequencing"],"prefix":"10.1002","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2796-8041","authenticated-orcid":false,"given":"Xian\u2010Qiu","family":"Liao","sequence":"first","affiliation":[{"name":"Department of Graduate School Guangxi University of Chinese Medicine  Nanning Guangxi 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