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Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease
Published on: July 3, 2018
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Potential microRNA biomarkers for acute ischemic stroke
Ye Zeng1, Jing-Xia Liu1, Zhi-Ping Yan1
1Institute of Biomedical Engineering, School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
International Journal of Molecular Medicine
|October 14, 2015
Summary
Researchers identified key microRNAs (miRNAs) and their target genes in carotid atheromatous plaque. These findings offer potential new therapeutic targets for acute ischemic stroke, improving treatment options for this condition.
Area of Science:
- Biomedical research
- Genomics
- Cardiovascular science
Background:
- Acute ischemic stroke poses a significant global health challenge, particularly in aging populations.
- Current treatments for acute ischemic stroke are limited, highlighting the need for novel therapeutic strategies.
- Atherosclerotic plaque is a known risk factor for acute ischemic stroke.
Purpose of the Study:
- To identify novel biomarkers for carotid atheromatous plaque.
- To explore the role of microRNAs (miRNAs) in the development of acute ischemic stroke.
- To discover potential therapeutic targets for acute ischemic stroke.
Main Methods:
- Bioinformatics analysis of gene microarray data from plaque and intact tissues.
- Identification of differentially expressed genes (DEGs) using R packages (Multtest, Limma).
- Generation and validation of miRNA-DEG networks using WebGestalt, STRING databases, and RT-qPCR in patient serum.
Main Results:
- Identified 56 downregulated and 69 upregulated DEGs.
- Confirmed differential expression of four miRNAs (miR-9, -22, -23, -125) linked to 28 upregulated DEGs.
- Confirmed differential expression of seven miRNAs (miR-9, -30, -33, -124, -181, -218, -330) linked to 25 downregulated DEGs.
- miRNA-targeted DEGs are primarily involved in signal transduction, circulatory system, biological adhesion, muscle contraction, wound healing, and immune system functions.
Conclusions:
- The study identified specific differentially expressed miRNAs and their target genes in carotid atheromatous plaque.
- These identified miRNA-targeted genes represent potential therapeutic targets for acute ischemic stroke.
- Further research into these targets could lead to improved treatment strategies for acute ischemic stroke.
