Researchers have made a simple injection to help the heart heal after a heart attack. The shot is given into skeletal muscle and makes the body release a natural hormone called ANP.
A study published in Science showed that one dose produced the hormone for several weeks. The injection uses a method similar to some modern vaccines so muscle cells make extra ANP for a short time.
The team says the treatment could reduce harmful scarring, protect healthy heart muscle and improve how the heart pumps. Before people can get the shot, researchers will study safety, timing and dosing.
Difficult words
- injection — medicine or fluid given with a needle
- skeletal muscle — body tissue that moves bones and limbs
- hormone — chemical made in the body to control functions
- scarring — permanent marks or damage after an injury
- dose — a measured amount of medicine or drug
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Would you take this shot if doctors say it is safe? Why or why not?
- How could reducing scarring help a person after a heart attack?
- What questions would you ask researchers about a new heart treatment?
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