Alzheimer's Research Takes a New Turn

Study suggests that gummed-up synapses -- not plaque -- may be at the root of aging brain diseases

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"This is really opening the door that this should be explored further," she said. "It needs to be replicated in the laboratory and also correlated to what it may mean in human beings."

More than 5 million Americans have Alzheimer's disease, and that number is expected to rise significantly as the baby boom generation ages.

More information

For more information on Alzheimer's disease, visit the U.S. National Institute on Aging.

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