For heart repair, call RNA
After attack, small molecules help contracting cells regenerate in mice
![cardiac muscle cells](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/03/kb_heart-rna_free.jpg?fit=860%2C460&ssl=1)
CHANGE OF HEART Researchers used small RNA molecules to make mouse cardiac muscle cells (such as this one highlighted in green and blue) start dividing again after a heart attack.
Lab of Ed Morrisey, Ph.D./Perelman School of Medicine/University of Pennsylvania