The study focused on extrachromosomal circular DNAs (eccDNAs) in human heart failure, particularly due to dilated cardiomyopathy (DCM), revealing their significance in heart disease.
Researchers used advanced methods like Circle-Seq and RNA-Seq to identify and analyze eccDNAs in heart tissues from DCM patients compared to healthy controls.
Findings showed that eccDNAs are derived from all chromosomes, often contain genes or gene fragments, and can influence gene expression in heart cells, potentially impacting the progression of heart failure.