Synthetic Prions Cause Brain Disease in Mice Scientists remain divided over whether prions -- a type of protein -- are the cause of mad cow and similar degenerative diseases. But researchers say a new experiment published in this week's Science magazine on synthetic prions that caused the disease in mice may help provide the evidence that's been missing. NPR's Joe Palca reports.
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Synthetic Prions Cause Brain Disease in Mice

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Synthetic Prions Cause Brain Disease in Mice

Synthetic Prions Cause Brain Disease in Mice

Synthetic Prions Cause Brain Disease in Mice

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  • <iframe src="https://www.npr.org/player/embed/3803166/3803167" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Scientists remain divided over whether prions — a type of protein — are the cause of mad cow and similar degenerative diseases. But researchers say a new experiment published in this week's Science magazine on synthetic prions that caused the disease in mice may help provide the evidence that's been missing. NPR's Joe Palca reports.