Mouse study links heart regeneration to telomere length

(Rockefeller University Press) Researchers at the Spanish National Center for Cardiovascular Research have discovered that the ends of heart muscle cell chromosomes rapidly erode after birth, limiting the cells' ability to proliferate and replace damaged heart tissue. The study, 'Postnatal telomere dysfunction induces cardiomyocyte cell-cycle arrest through p21 activation,' which will be published online May 30, 2016 in The Journal of Cell Biology, suggests potential new interventions to boost t...