From: http://www.reuters.com/article/2012/05/06/us-brain-neurodegeneration-idUSBRE84509X20120506
Quote(Reuters) - Scientists have figured out how to stop brain cell death in mice with brain disease and say their discovery deepens understanding of the mechanisms of human neurodegenerative diseases such as Alzheimer's and Parkinson's.
British researchers writing in the journal Nature said they had found a major pathway leading to brain cell death in mice with prion disease, the mouse equivalent of Creutzfeld-Jacob Disease (CJD).
They then worked out how to block it, and were able to prevent brain cells from dying, helping the mice live longer.
More at link.