The lower expression of circulating miR‐210 and elevated serum levels of HIF‐1α in ischemic stroke; Possible markers for diagnosis and disease prediction

• Published in: Journal of clinical laboratory analysis Vol. 35; no. 12; pp. e24073 - n/a
• Main Authors: Rahmati, Mina, Ferns, Gordon A., Mobarra, Naser
• Format: Journal Article
• Language: English
• Published: United States John Wiley & Sons, Inc 01.12.2021; John Wiley and Sons Inc
• Subjects: Aged; Area Under Curve; biomarker; Biomarkers; Biomarkers - blood; Cell-Free Nucleic Acids - blood; diagnosis; Disease; Gene expression; Hemorrhage; HIF‐1α; Humans; Hypoxia; Hypoxia-Inducible Factor 1, alpha Subunit - blood; Ischemia; Ischemic stroke; Ischemic Stroke - blood; Ischemic Stroke - diagnosis; Ischemic Stroke - genetics; Ischemic Stroke - mortality; Laboratories; Medical prognosis; MicroRNAs; MicroRNAs - blood; microRNA‐210; miRNA; Patients; Prognosis; Real time; Regression analysis; Sensitivity and Specificity; Serum levels; Stroke; Survival Analysis; Thermal cycling; Variables; Iran; microRNA-210; diagnosis; HIF-1α; Ischemic stroke; biomarker; prognosis
• ISSN: 0887-8013; 1098-2825; 1098-2825
• DOI: 10.1002/jcla.24073

Background Stroke, either due to ischemia or hemorrhage, causes acute neurological damages to the brain. There is shortage of reliable biomarkers for ischemic stroke (IS), and we therefore investigated the serum concentrations of microRNA‐210 (miR‐210) and hypoxia inducible factor‐1α (HIF‐1α), as possible diagnostic and/or prognostic markers for IS. Methods Serum samples were acquired from 52 IS patients and their healthy counterparts at five time points: upon admission, 24 and 48 h after admission, upon discharge and 3 months later. Serum levels of miR‐210 and HIF‐1α were respectively analyzed using real time RT‐PCR and ELISA. Diagnostic and prognostic accuracy tests were performed to assess the value of suggested biomarkers. Results IS patients demonstrated higher levels of serum HIF‐1α and lower miR‐210 in comparison to the healthy subjects. MiR‐210 was suggested to be a weak diagnostic biomarker at the time of admission (AUC = 0.61; p = 0.05), while HIF‐1α was an acceptable diagnostic marker for IS (AUC = 0.73; p < 0.0001). The higher expression of miR‐210 and lower levels of HIF‐1α were associated with better survivals in IS patients. Conclusions Serum miR‐210 is a weak diagnostic marker of IS. Serum HIF‐1α is a better biomarker in diagnosing IS patients but further work in larger groups, including those with hemorrhagic stroke is necessary to confirm its diagnostic utility. Similarly, the prognostic potentiality of miR‐210 and HIF‐1α was acceptable but needs bigger sample size and longer follow‐up to be statistically confirmed. Here, we investigated the serum concentrations of miR‐210 and HIF‐1α, as possible diagnostic and/or prognostic markers for ischemic stroke (IS). IS patients demonstrated higher levels of serum HIF‐1α and lower miR‐210 in comparison to the healthy subjects. MiR‐210 was suggested to be a weak diagnostic biomarker at the time of admission (AUC = 0.61; p = 0.05), while HIF‐1α was an acceptable diagnostic marker for IS (AUC = 0.73; p < 0.0001). The higher expression of miR‐210 and lower levels of HIF‐1α were associated with better survivals in IS patients.