The noninvasive test was developed to detect the presence of the toxic protein amyloid beta, known to be present in people affected by the disease, and did so with 90% accuracy, according to the study, published Wednesday in the journal Nature.
The team trialed the test on 121 patients from Japan and 252 from Australia with varying levels of health, ranging from healthy to mild cognitive impairments or Alzheimer’s disease.
“This test is at least as good as current brain scan techniques and far surpasses existing blood tests,” said Colin Masters, professor of dementia research at Melbourne’s Florey Institute of Neuroscience and Mental Health, who led the study.
But the researchers cautioned that they were still far from practical clinical application.
The onset of Alzheimer’s can come as early as 30 years before the patient experiences any symptoms, such as memory loss.
There is no concrete test to determine early onset of dementia, …
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