Scientists seeking healthy seniors at risk of Alzheimer’s in bid to thwart disease

canada.com

By Lauran Neergaard

THE ASSOCIATED PRESS

WASHINGTON — In one of the most ambitious attempts yet to thwart Alzheimer’s disease, a major study got underway Monday to see if an experimental drug can protect healthy seniors whose brains harbour silent signs that they’re at risk.

Scientists plan to eventually scan the brains of thousands of older volunteers in the U.S., Canada and Australia to find those with a sticky build-up believed to play a key role in development of Alzheimer’s — the first time so many people without memory problems get the chance to learn the potentially troubling news.

Having lots of that gunky protein called beta-amyloid doesn’t guarantee someone will get sick. But the big question: Could intervening so early make a difference for those who do?

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“We have to get them at the stage when we can save their brains,” said Dr. Reisa Sperling of…

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