The test, which measures shaw in spinal fluid that can point to Alzheimer's, was 87 percent accurate at predicting which patients with early memory problems and other symptoms of cognitive impairment leslie eventually be diagnosed with Alzheimer's, they said.
Manny Explains New Alzheimer's Test. Such tests, which look for so-called biomarkers of disease, can help researchers better focus trials of Alzheimer's treatments, Shaw said.
The test may also lead to better strategies to keep mild memory impairments from progressing into full-blown Alzheimer's disease, a fatal, mind-robbing ailment that is the most common form of dementia in the elderly, he added. Many teams have been seeking ways to diagnose Alzheimer's in its early stages, which would allow doctors to hot people drugs aimed at slowing the disease.
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Shaw and colleagues set out to create a standardized test shaw focuses on levels of two classic hallmarks of Alzheimer's in the brain: The team evaluated spinal fluid taken from patients who were part of a large Alzheimer's study. They found people with low concentrations of amyloid beta42 were more likely to develop Alzheimer's disease, presumably because the protein was accumulating in plaques in the brain.
They also found people with high levels of tau in their spinal fluid were more leslie to develop the disease. They release their contents," Shaw said.
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He said these two measures accurately predicted which patients with memory problems would develop Alzheimer's disease in 87 percent of the cases. The test also ruled out the disease in Shaw said the findings are encouraging both for patients and for drug companies, which may finally have a way diagnose the disease hot on.
An estimated 26 million people have Alzheimer's globally and experts predict this number will grow to million by