smitty777 writes "Two separate studies by the Taub Institute and Harvard have discovered the pathway used by Alzheimer's Disease to spread through the brain. The studies indicate it's not a virus, but a distorted protein called Tau which moves from cell to cell. Further, the discovery 'may now offer scientists a way to move forward and develop a way to block tau's spread in Alzheimer's patients, said Karen Duff, a researcher at Columbia's Taub Institute for Research on Alzheimer's disease and co-author of one study published Wednesday in the journal PLoS One. "It's enlightening for us because it now provides a whole other area for potential therapeutic impact," said Duff. "It's possible that you can identify the disease and intervene (with potential tau-blocking drugs) before the dementia actually sets in."'"
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