WASHINGTON (AP) — No batteries required: Scientists are creating a biological pacemaker by injecting a gene into the hearts of sick pigs that changed ordinary cardiac cells into a special kind that ...

GUADALAJARA, Mexico — "Somatic reprogramming is a strategy in which we are not modifying a single part of the cell, but we are reprogramming a normal cell to transform it into a pacemaker cell," said ...

Your heart has an internal pacemaker called the sinus node. It's a group of cells, located on top of your heart, that sends electrical signals into the heart and controls your heartbeat. Sometimes, ...