Seaweed capsule packed with stem cells could repair damage after heart attack, scientists find

A tiny capsule made from seaweed and packed with stem cells is being tested as a treatment for heart attack patients.

Roughly the thickness of a grain of rice, the capsule is injected into the heart through an incision in the side of the chest.

It is filled with up to 30,000 stem cells, which kick-start the healing process in cardiac muscle left severely damaged by the lack of blood that occurs during a heart attack.

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