Archive: https://archive.today/PhgXm From the post: >>The human heart has the ability to repair itself, scientists have found, in a breakthrough that could provide a lifeline for hundreds of thousands of patients. When someone has a heart attack or heart failure, crucial muscle cells are lost and the heart cannot replace them. There is no current way to grow new heart cells after damage, meaning patients must rely on medication, implanted devices, surgery or a transplant. But now, experts have discovered a gene which turns off after birth can be 'reactivated' to make new, functioning heart cells. Scientists from the Icahn School of Medicine at Mount Sinai, in New York, realised that injecting the gene back into damaged middle–aged donor hearts can kickstart cell renewal.