I have been very interested in the fact that you can bypass the blood-brain barrier, and get substances directly into the brain, via your nasal passages I corresponded with the lead researcher in this field, Dr.William Frey, nearly 10 years ago. He has now published research on introducing stem cells to intranasaly to the brain using rats

http://www1.umn.edu/news/features/20...NT_124844.html

"The researchers had mice sniff tiny droplets containing adult stem cells from rats. An hour later, rat stem cells were clearly visible in the mice’s brains. To make sure the ability to penetrate the brain wasn’t limited just to those cells, they also had rats snort a second type of cells, from human brain tumors. These cells also penetrated the brain within an hour."

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How did the stem cells get there? They likely traveled to the brain along the olfactory (smell) nerves through small holes in the cribriform plate, a thin horizontal part of the skull at the base of the brain."

It is totally non invasive, and at last is a treatment to attack the disease instead of just allieviating symptoms
Ron