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Plasma miR-124-3p and miR-16 concentrations as prognostic markers in acute stroke

Rainer, Timothy, Leung, Ling Yan, Chan, Cangel Pui Yee, Leung, Yuk Ki, Abrigo, Jill Morales, Wang, Defeng and Graham, Colin A. 2016. Plasma miR-124-3p and miR-16 concentrations as prognostic markers in acute stroke. Clinical Biochemistry 49 (9) , pp. 663-668. 10.1016/j.clinbiochem.2016.02.016

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Abstract

Objectives This study aimed to investigate plasma concentrations of miR-124-3p and miR-16 as prognostic markers in emergency department patients with acute stroke. Design and methods Plasma concentrations of miR-124-3p and miR-16 of 84 stroke patients (presenting to the emergency department within 24 h from onset of symptoms) were determined by RT-qPCR. The primary outcome measure was 3-month mortality and the secondary outcome measure was post-stroke modified Rankin Score (mRS). Results Twelve patients (14.3%) died within 3 months of hospital admission and forty-one (48.8%) patients as achieved a 3-month mRS > 2. Median plasma miR-124-3p concentrations were elevated in patients who died compared to patients who survived (p = 0.0052), and its levels were found to be higher in patients with a 3-month mRS > 2 compared with patients with mRS ≤ 2 (p = 0.0312). Higher plasma miR-16 concentrations were observed in patients who survived than in patients who died (p = 0.0394), while its concentrations were lower in patients achieving mRS > 2 than in patients with mRS ≤ 2 (p = 0.0124). For a subgroup of cases presenting to the emergency department within 6 h from time of symptom onset (n = 36), plasma miR-124-3p concentrations predicted 3-month mortality with an area under the ROC curve of 0.87 (95%CI: 0.72–0.96). Conclusions Plasma miR-124-3p and miR-16 are molecular markers which could be useful for the early prediction of mortality and mRS.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Uncontrolled Keywords: microRNA; Stroke; Plasma; Prognosis
Publisher: Elsevier
ISSN: 0009-9120
Date of First Compliant Deposit: 20 July 2016
Date of Acceptance: 24 February 2016
Last Modified: 04 Jun 2017 09:17
URI: http://orca-mwe.cf.ac.uk/id/eprint/93017

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