Related Experiment Video
Updated: Feb 14, 2026

Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer
Published on: March 14, 2019
Expression of miR-146a-5p in patients with intracranial aneurysms and its association with prognosis
1Department of Neurosurgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China. sunxiaochuandn@163.com.
Objective:
The study aims to detect the association of miR-146a-5p with intracranial aneurysms (IAs).
Patients And Methods:
The expression of miR-146a-5p was compared from plasma samples between 72 patients with intracranial aneurysms (IAs) and 40 healthy volunteers by quantitative Real-time polymerase chain reaction (qRT-PCR). Statistical analysis was performed to analyze the relationship between miR-146a-5p expression and clinical data and overall survival (OS) time of IAs patients. Univariate and multivariate Cox proportional hazards have also been performed.
Results:
Notably, higher miR-146a-5p expression was found in plasma samples from 72 patients with intracranial aneurysms (IAs) compared with 40 healthy controls. Higher miR-146a-5p expression was significantly associated with rupture and Hunt-Hess level in IAs patients. Kaplan-Meier survival analysis verified that higher miR-146a-5p expression predicted a shorter overall survival (OS) compared with lower miR-146a-5p expression in IAs patients. Univariate and multivariate Cox proportional hazards demonstrated that higher miR-146a-5p expression, rupture, and Hunt-Hess were independent risk factors of OS in patients with intracranial aneurysms (IAs).
Conclusions:
MiR-146a-5p expression may serve as a biomarker for predicting prognosis in patients with IAs.
Insights
Higher miR-146a-5p expression in plasma is associated with intracranial aneurysms (IAs). This microRNA may serve as a prognostic biomarker for predicting outcomes in IA patients.
Area of Science:
- Biomarkers
- Molecular Biology
- Neuroscience
Background:
- Intracranial aneurysms (IAs) are a significant cause of cerebrovascular disease.
- Identifying reliable biomarkers for IA prognosis is crucial for patient management.
Purpose of the Study:
- To investigate the association between miR-146a-5p expression and intracranial aneurysms (IAs).
- To evaluate miR-146a-5p as a potential prognostic biomarker in IA patients.
Main Methods:
- Quantitative Real-time polymerase chain reaction (qRT-PCR) was used to measure miR-146a-5p expression in plasma samples.
- Plasma samples were collected from 72 IA patients and 40 healthy controls.
- Statistical analyses, including Cox proportional hazards models, were performed.
Main Results:
- Higher miR-146a-5p expression was observed in IA patients compared to healthy controls.
- Elevated miR-146a-5p levels correlated with aneurysm rupture and Hunt-Hess grade.
- Higher miR-146a-5p expression was an independent predictor of shorter overall survival in IA patients.
Conclusions:
- MiR-146a-5p may serve as a valuable biomarker for predicting prognosis in patients with intracranial aneurysms.
- Further research is warranted to explore the therapeutic potential of targeting miR-146a-5p.
Related Concept Videos
Aneurysm I: Introduction
Associative Learning
Classical conditioning, also known...
Association Areas of the Cortex
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Aneurysm IV: Nursing Management
Aneurysm III: Interprofessional Care
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...

