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Muscle patch made from stem cells could treat heart failure

A patch made from lab-grown muscle cells boosted heart function in monkeys with cardiovascular disease and is now being tested in humans

By Grace Wade

29 January 2025

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Illustration of the heart muscle patch

Eva Meyer-Besting/UNIVERSITÄTSMEDIZIN GÖTTINGEN

A muscle patch crafted from stem cells has improved cardiac function in monkeys with heart disease. It is now being tested in a small number of people, with early results from the first recipient suggesting it could treat advanced heart failure.

Heart failure – when the heart can’t pump enough blood to meet the body’s demands – usually occurs after a heart attack permanently damages or weakens the organ. Short of receiving a transplant or fitting a pump, no treatment can fully restore cardiac function, only slow its decline.…

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