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IS ALZHEIMER's really PRION DISEASE like MAD COW ? - - - Alzheimers May Be Transmissible
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[link to www.msnbc.msn.com]
In some cases, Alzheimer's disease may in fact be the result of an infection, and may even be transmissible, a new study in mice suggests.
In the study, mice injected with human brain tissue from Alzheimer's patients developed Alzheimer's disease. The mice developed brain damage characteristic of Alzheimer's disease, and over time, the damage spread throughout their brains, the researchers said.
Mice injected with brain tissue from healthy humans showed no signs of the disease.
"Our findings open the possibility that some of the sporadic Alzheimer's cases may arise from an infectious process," similar to the way mad cow disease arises from infection with diseased proteins called prions, said study researcher Claudio Soto, a professor of neurology at The University of Texas Medical School at Houston.
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