ORIGINAL RESEARCH
Circulating microRNAs Serve as Novel Biological Markers for Intracranial Aneurysms Pengxiang Li, MMed;* Qunye Zhang, PhD;* Xiao Wu, BMed; Xinjian Yang, MD; Yun Zhang, MD; Youxiang Li, MD; Fan Jiang, PhD
Background-—Biological markers that can be used to predict the risk of intracranial aneurysms (IAs) are not available. Methods and Results-—To clarify whether circulating microRNAs could be used as biomarkers for IA, we carried out microarray assays in a screening cohort of 40 IA patients (20 unruptured and 20 ruptured) and 20 healthy volunteers. We identified 20 microRNAs that were unanimously changed in both ruptured and unruptured patients. We confirmed 60% of these changed microRNAs by a separate microarray test with an independent validation cohort (n=143 including 93 IA patients). To identify potential biomarkers, we combined the 2 cohorts and performed quantitative real-time polymerase chain reactions for selected target microRNAs. Logistic regression analysis demonstrated that miR-16 and miR-25 were independent factors for IA occurrence (P
Circulating microRNAs Serve as Novel Biological Markers for Intracranial Aneurysms Pengxiang Li, MMed;* Qunye Zhang, PhD;* Xiao Wu, BMed; Xinjian Yang, MD; Yun Zhang, MD; Youxiang Li, MD; Fan Jiang, PhD
Background-—Biological markers that can be used to predict the risk of intracranial aneurysms (IAs) are not available. Methods and Results-—To clarify whether circulating microRNAs could be used as biomarkers for IA, we carried out microarray assays in a screening cohort of 40 IA patients (20 unruptured and 20 ruptured) and 20 healthy volunteers. We identified 20 microRNAs that were unanimously changed in both ruptured and unruptured patients. We confirmed 60% of these changed microRNAs by a separate microarray test with an independent validation cohort (n=143 including 93 IA patients). To identify potential biomarkers, we combined the 2 cohorts and performed quantitative real-time polymerase chain reactions for selected target microRNAs. Logistic regression analysis demonstrated that miR-16 and miR-25 were independent factors for IA occurrence (P
