Medical research

Hybrid heart valve is strong, durable in early tests

A hybrid heart valve created from thin and highly elastic mesh embedded within layers of human cells was strong and durable in a study presented at the American Heart Association's Scientific Sessions 2013.

Medical research

Researchers say supplement cuts muscle loss in knee replacements

Twenty grams of essential amino acids taken twice daily for a week before and for two weeks after knee-replacement surgeries helped 16 patients, mean age 69, recover faster and with much less muscle atrophy than a control ...

Genetics

Gene scans solve mystery diseases in kids, adults

They were mystery diseases that had stumped doctors for years—adults with strange symptoms and children with neurological problems, mental slowness or muscles too weak to let them stand. Now scientists say they were able ...

Medical research

New collagen patch speeds repair of damaged heart tissue in mice

You can't resurrect a dead cell anymore than you can breathe life into a brick, regardless of what you may have gleaned from zombie movies and Dr. Frankenstein. So when heart cells die from lack of blood flow during a heart ...

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