“When you have 90% accuracy,” Ilene Rosenthal said, “that’s very impressive.”
A new study is offering hope for a simple and accurate blood test that can diagnose Alzheimer’s disease in its early stages, the only time when currently available treatments work.and published Sunday in the Journal of the American Medial Association, found that a test based on measuring certain proteins in the brain had about a 90% accuracy rate in diagnosing Alzheimer’s in those with cognitive symptoms.
The blood test in the study and others of its ilk are only available in research trials at the moment,” said Corinne Pettigrew, an assistant professor of neurology at the Johns Hopkins University School of Medicine, who was not involved in the study. “Getting one to the market and available in a primary care physician’s office would represent incredible progress.
She said the test also would be important for ruling out Alzheimer’s as the reason for a patient’s cognitive impairment, allowing doctors to seek and treat the actual cause. “The higher diagnostic accuracy of the blood test indicates that it could be suitable for implementation in primary care, but future studies need to examine its effect on clinical care,” according to the study, which was led by Dr. Sebastian Palmqvist, of Lund University in Sweden. “In addition to improving diagnostic accuracy, a positive test result could further support the initiation of widely available treatments.
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