Circulating MicroRNAs as Biomarkers for Acute Ischemic Stroke: A Systematic Review.

J Stroke Cerebrovasc Dis

The Vascular Biology Unit, Queensland Research Centre for Peripheral Arterial Diseases, College of Medicine & Dentistry, James Cook University, Townsville, Queensland, Australia; Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Australia. Electronic address:

Published: March 2018

Background: Acute ischemic stroke is a leading cause of death and disability worldwide. Unlike myocardial infarction, there is no current blood test to diagnose acute ischemic stroke. MicroRNAs (miRNAs) are very stable in the blood and have been suggested as potential diagnostic markers.

Materials And Methods: This review aimed to systematically assess case-control studies investigating the association of circulating miRNAs with acute ischemic stroke. Medline, CINAHL, Cochrane Library, Web of Science, Scopus, and PubMed were searched for studies that examined the association of circulating miRNAs in patients with acute ischemic stroke. Studies meeting specific inclusion and exclusion criteria (such as blood samples obtained within 24 hours of an acute ischemic stroke) were selected for data extraction. Two authors extracted data from the included studies relevant to the study design, the patient characteristics, and the relative miRNA expression.

Results: Eight studies were included involving 572 cases and 431 healthy controls. Twenty-two miRNAs (12 upregulated and 10 downregulated) were reported as differentially expressed. Only 1 miRNA, miR-106b, was reported as differentially expressed in at least 2 studies. Significant heterogeneity in the design and methods of the included studies was noted.

Conclusions: Differential expression of a large number of miRNAs has been reported early following acute ischemic stroke. More research is required in larger patient populations to further evaluate the diagnostic potential of the reported miRNAs.

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Source
http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2017.09.058DOI Listing

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