Abstract WMP30: Circulating MicroRNAs as Potential Novel Diagnostic Biomarkers for Ruptured Intracranial Aneurysm

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Background and Objective: MicroRNAs have been shown to regulate in several pathological process of intracranial aneurysms. The study aimed to estimate whether miRNAs have the potential to become novel biomarkers for intracranial aneurysm rupture.Materials and methods Forty-five ruptured intracranial aneurysm patients were enrolled according to the inclusion criteria, meanwhile thirty-five healthy individuals were recruited in this study. Differentially expressed plasma miRNA profiles were screened in five pairs of patients and controls in microarray study. Then validation was performed in the rest of the objects using quantitative real-time PCR assays.Results: Fourteen significantly changed miRNAs were screened out from patients with aneurysms compared with healthy controls. More than three thousand target genes related to these disregulated miRNAs were found and bioinformatic analysis revealed that these miRNA were involved in intracranial aneurysm development and rupture. Ultimately four miRNAs from screening profile and one supplementary miRNA were demonstrated to be significantly altered.Conclusion: We demonstrated that several miRNAs were differentially expressed among ruptured aneurysm patients and healthy participants, and plasma miRNAs may be novel diagnostic biomarkers in intracranial aneurysm rupture.

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