Heart attack, or myocardial infarction, is one of the
leading causes of death worldwide. Although modern surgical
techniques, diagnostics and medications have greatly improved early
survival from these events, many patients struggle with the
long-term effects of permanently damaged tissue, and the 5-year
mortality rate remains high. Now, researchers reporting in ACS Nano
have developed a minimally invasive exosome spray that helped
repair rat hearts after myocardial infarction.

