Human heart stem cells have been used to improve symptoms of chronic heart failure in rats
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A dose of CRISPR-modified heart cells boosted the survival of rats with chronic heart failure and increased their physical activity. Human testing of the technique could take place within a few years.
Chronic heart failure, where the heart fails to pump blood around the body efficiently, is one of the leading causes of death worldwide. For most people, this long-term condition – involving slow, weak heart contractions – cannot be cured, but its symptoms are…