Kodadek is also working on developing an Alzheimer's blood test that screens for antibodies and is running into similar issues, he said.
"At the end of the day, is it crucial to know what the function of these autoantibodies are? No," Kodadek said. "Even if you don't understand what it does, it could still be an important biomarker. But these things are not black and white markers that are completely unique to Alzheimer's patients, which is ideally what you would like to have."
The U.S. National Institute on Aging has more on Alzheimer's disease.
SOURCES: Robert Nagele, Ph.D., founder, Durin Technologies, Inc., and professor of medicine, University of Medicine and Dentistry of New Jersey; Aron Buchman, M.D., neurologist, Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago; Thomas Kodadek, Ph.D., professor, chemistry & cancer biology, The Scripps Research Institute, Jupiter, Fla.; Aug. 3, 2011, PLoS ONE, online
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