Diagnostic and Prognostic Value of Plasma lncRNA SRA1 in Chronic Heart Failure

Background: The pathogenesis and development of chronic heart failure (CHF) may involve long non-coding ribonucleic acid (lncRNA) steroid receptor RNA activator 1 (SRA1), a known cardiomyopathy risk factor and regulator of cardiac myofibroblast activation. This study aimed to investigate the application of SRA1 in the early detection and prediction of CHF. Methods: SRA1 plasma expression was determined in CHF patients and healthy individuals/using real time-quantitative polymerase chain reaction (RT-qPCR). The diagnostic and prognostic value of SRA1 was assessed using receiver operating curve (ROC) and Cox regression analyses. Results: Compared with the healthy controls, the patients with CHF had increased brain natriuretic peptide (BNP) levels, left atrial end-systolic diameter (LAD), left ventricular end-diastolic diameter (LVDd), and decreased left ventricular ejection fraction (LVEF). SRA1 was significantly upregulated in CHF patients as well as positively correlated with BNP level, LAD, and LVDd, and negatively correlated with LVEF. SRA1 could sensitively discriminate CHF patients from healthy individuals and was an independent predictor of adverse event-free survival in CHF patients. Conclusions: Upregulated plasma SRA1 can discriminate patients with CHF from healthy individuals and predict adverse outcomes in CHF patients. Thus, SRA1 is a potential molecular indicator for monitoring chronic heart failure development.