Yeast are first cells known to cure themselves of prions

Yeast cells can sometimes reverse the protein misfolding and clumping associated with diseases such as Alzheimer's, according to new research. The finding contradicts the idea that once prion proteins have changed into the shape that aggregates, the change is irreversible. In humans, such aggregates, called amyloids, are associated with diseases including Alzheimer's, Huntington's and Parkinson's.

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