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Identification and functional analysis of microRNAs in rats following focal cerebral ischemia injury.


ABSTRACT: MicroRNA sequencing (miRNA?seq) was performed in the present study to investigate miRNA expression profiles in infarcted brain areas following focal cerebral ischemia induced by middle cerebral artery occlusion in rats. In total, 20 miRNAs were identified to be upregulated and 17 to be downregulated in the infarct area. The expression levels of six differentially expressed miRNAs (DEmiRs), miR?211?5p, miR?183?5p, miR?10b?3p, miR?182, miR?217?5p and miR?96?5p, were examined by reverse transcription??quantitative polymerase chain reaction. Subsequently, a miRNA?mRNA network was constructed. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed to investigate the functions of the mRNAs targeted by these DEmiRs. The present study aimed to investigate the association between miRNAs and cerebral ischemia to provide potential insight into the molecular mechanisms underlying ischemic stroke.

SUBMITTER: Duan X 

PROVIDER: S-EPMC6471137 | BioStudies | 2019-01-01

REPOSITORIES: biostudies

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