Guinea pig heart cells provide foundation for biological pacemaker

12/18/2012 |

Scientists used heart-muscle cells from a guinea pig to create functional pacemaker cells, which create electrical activity to control the heart's rhythm. Electronic pacemakers are dependent on batteries that have a limited life, can accidentally move or break inside the heart and do not adjust well to changes in heart rates associated with physical activity. "All these problems could be solved by a biological pacemaker that is microscopic in scale and free from all hardware," said Hee-Cheol Cho, a Los Angeles-based biologist who helped develop the new pacemaker cells.

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