Distinct circular RNA signatures distinguish STEMI from NSTEMI in acute myocardial infarction

Introduction

Heart attacks come in different forms, with ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) being two important but distinct types. While doctors can tell them apart in the clinic, it's still unclear exactly how the molecules circulating in the blood differ between the two. Recently, scientists have been looking at circular RNAs (circRNAs), a type of stable non-coding RNA easily found in blood plasma, to see if they can offer new clues beyond traditional heart attack markers. This study set out to find out if the patterns of circRNAs in the blood could reliably tell STEMI and NSTEMI apart, and possibly uncover new, more specific biomarkers for each type.