Washington: Researchers have highlighted, for the first time, the natural regenerative capacity of a group of stem cells that reside in the heart.According to the new study these cells are responsible for repairing and regenerating muscle tissue damaged by a heart attack that leads to heart failure.The study shows that if the stem cells are eliminated, the heart is unable to repair after damage. If the cardiac stem cells are replaced the heart repairs itself, leading to complete cellular, anatomical and functional heart recovery, with the heart returning to normal and pumping at a regular rate.Also, if the cardiac stem cells are removed and re-injected, they naturally `home` to and repair the damaged heart, a discovery that could lead to less-invasive treatments and even early prevention of heart failure in the future.The study had set out to establish the role of cardiac stem cells (eCSCs) by first removing the cells from the hearts of rodents with heart failure. This stopped regeneration and recovery of the heart, demonstrating the intrinsic regenerative capacity of these cells for repairing the heart in response to heart failure.
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