 This study found that a specific type of non-coding RNA, called circular RNA, circRNA, plays an important role in the regulation of cardiac cell death after myocardial ischemia and reperfusion, IR. It also demonstrated how this particular circRNA can help prevent myocardial IR injury by regulating the expression of certain genes involved in the process. This article was authored by Jieju, Sheminit Li, Shwe Mai Zhao, and others.