MicroRNAs as potential biomarkers in congenital heart surgery

Autor: Giovanni Biglino, Kerrie L. Ford, Serban Stoica, Antonella Vardeu, Massimo Caputo, Mustafa Zakkar, Costanza Emanueli, Domenico Bruno, Andrew D Mumford, Gianni D Angelini, Dan M Dorobantu
Rok vydání: 2020
Předmět:
Zdroj: Stoica, S C, Dorobantu, D M, Vardeu, A, Biglino, G, Ford, K L, Bruno, D V, Zakkar, M, Mumford, A, Angelini, G D, Caputo, M & Emanueli, C 2019, ' MicroRNAs as potential biomarkers in congenital heart surgery ', Journal of Thoracic and Cardiovascular Surgery . https://doi.org/10.1016/j.jtcvs.2019.03.062
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2019.03.062
Popis: Objective: Pediatric congenital heart surgery (CHS)involves intracardiac, valvular, and vascular repairs. Accurate tools to aid short-term outcome prediction in pediatric CHS are lacking. Clinical scores, such as the vasoactive-inotrope score and ventilation index, are used to define outcome in clinical studies. MicroRNA-1-3p (miR-1)is expressed by both cardiomyocytes and vascular cells and is regulated by hypoxia. In adult patients, miR-1 increases in the circulation after open-heart cardiac surgery, suggesting its potential as a clinical biomarker. Thus, we investigated whether perioperative circulating miR-1 measurements can help predict post-CHS short-term outcomes in pediatric patients. Methods: Plasma miR-1 was retrospectively measured in a cohort of 199 consecutive pediatric CHS patients (median age 1.2 years). Samples were taken before surgery and at the end of the operation. Plasma miR-1 concentration was measured by reverse transcription-quantitative polymerase chain reaction and expressed as miR-1 copies/μL and as relative expression to spiked-in exogenous cel-miR-39. Results: Baseline plasma miR-1 did not vary across different diagnoses, increased during surgery (204-fold median relative increase, P Conclusions: Our study suggests miR-1 as a novel potential circulating biomarker to predict early postoperative outcome and inform clinical management in pediatric heart surgery.
Databáze: OpenAIRE