Prions may cause Alzheimer's

Similarity found with destructive protein behind mad cow

By Laura Sanders, 15:08 PM December 13, 2012

2012 SCIENCE NEWS TOP 25: 10

An infectious, self-replicating protein might be at the heart of Alzheimer’s disease, a growing number of studies suggest. If correct, this idea could change how scientists view the condition, which affects 5.4 million Americans.

A tiny seed of a dangerous protein could corrupt other harmless proteins, the theory goes, creating and unleashing a destructive army in the brain. And this process might not be restricted to Alzheimer’s. Some researchers believe the ...

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