It may be possible to develop a quick, painless skin test for Alzheimer's disease, scientists say.
US researchers say they have discovered enzymes that react abnormally only in the skin of Alzheimer's patients.
Currently, the disease can only be diagnosed using psychiatric assessments or during a post-mortem examination.
The study, by Maryland's Blanchette Rockefeller Neurosciences Institute, features in Proceedings of the National Academy of Sciences.
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