未来心脏能否具备自我修复功能 Researchers now have a better understanding of why heart muscle lacks the ability to fix itself.研究人员现在对心肌为何没有自我修复能力有了更好的了解。And according to UPI,that newfound insight may lead to more effective ways of treating heart disease.根据UPI，这项新发现可能会引出治疗心脏病更有效的方法。A study by Baylor College of Medicine and the Texas Heart Institute revealed a previously unknown connection between processes that keeps the heart from repairing itself.美国贝勒医学院和德州心脏研究所的一项研究揭露了此前未知的、防止心脏进行自我修复的过程之间的联系。According to the Centers for Disease Control and Prevention,heart disease is the leading cause of death in the United States.根据疾病防控中心，心脏病是美国疾病死亡的主要原因。That's because the heart muscle is one of the least renewable tissues in the body.Researchers used genetically engineered mice to study two distinct heart pathways.那是因为心肌是人体最不可再生的组织之一。研究人员利用基因工程老鼠来研究两种不同的心脏路径。