Main Category: Heart Disease
Also Included In: Stem Cell Research
Article Date: 18 Aug 2013 – 0:00 PDT
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By revealing this robust homing mechanism, which causes cardiac stem cells to home to and repair the heart’s damaged muscle, the findings could lead to less invasive treatments or even preventative measures aimed at maintaining or increasing the activity of the heart’s own cardiac stem cells.
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Heart failure – when the heart is unable to pump blood around the body adequately – affects more than 750,000 people in the UK, causing breathlessness and impeding daily activities. Current treatments are aimed at treating the underlying causes, such as coronary heart disease, heart attack and blood pressure through lifestyle changes, medicines and in severe cases, surgery. These treatments are sometimes successful in preventing or delaying heart failure. However, once heart failure develops the only curative treatment is heart transplantation.
MLA
Dr Georgina Ellison, the first author of the paper and Professor Bernardo Nadal-Ginard, the study’s corresponding author, both from the Centre of Human & Aerospace Physiological Sciences and the Centre for Stem Cells and Regenerative Medicine at King’s, said: ‘In a healthy heart the quantity of cardiac stem cells is sufficient to repair muscle tissue in the heart. However, in damaged hearts many of these cells cannot multiply or produce new muscle tissue. In these cases it could be possible to replace the damaged cardiac stem cells or add new ones by growing them in the laboratory and administering them intravenously.’
Researchers at King’s College London have for the first time highlighted the natural regenerative capacity of a group of stem cells that reside in the heart. This new study shows that these cells are responsible for repairing and regenerating muscle tissue damaged by a heart attack which leads to heart failure.
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.
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