Catheter ablation restores decreased plasma miR-409-3p and miR-432 in atrial fibrillation patients

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology
Tian LiuShulin Wu

Abstract

Despite numerous studies identifying specific microRNA (miRNA) expression profiles associated with atrial fibrillation (AF), changes in plasma miRNA expression in pre- and post-operative AF patients who have received catheter ablation, remain poorly characterized. This study aimed to reveal disease-related biomarkers by detecting plasma miRNA expression in AF patients, and examining the levels of AF-specific miRNAs in patients after catheter ablation, in order to help gauge therapeutic effects and assess prognosis. A total of 100 Han Chinese patients with AF who had received catheter ablation, and 100 healthy individuals, were sequentially recruited to the study. Atrial fibrillation-specific plasma miRNAs were detected by Solexa sequencing and quantitative reverse transcription polymerase chain reaction. The expression levels of AF-specific miRNAs were also investigated in 40 post-operative patients (24-48 h) and 20 patients followed up (58.52 ± 36.00 days) after catheter ablation, to explore changes in miRNA expression. The expressions of miR-409-3p and miR-432 in the plasma of AF patients were lower than healthy individuals. In binary logistic regression analyses, reduced miR-409-3p and miR-432 levels were independently assoc...Continue Reading

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