Researchers headed by a team at the University of California San Diego have found that a novel blood-based biomarker can predict a woman’s risk of developing dementia as many as 25 years before symptoms appear. The study, involving more than 2500 women, showed that higher levels of phosphorylated tau 217 (ptau217)—a form of tau protein that reflects early brain changes associated with Alzheimer’s disease—were strongly associated with future mild cognitive impairment (MCI) and dementia among older women who were cognitively healthy at the start of the study, before any memory or thinking problems were detected.
“Our study suggests we may be able to identify women at elevated risk for dementia decades before symptoms emerge,” said Aladdin H. Shadyab, PhD, MPH, UC San Diego associate professor of public health and medicine at the Herbert Wertheim School of Public Health and Human Longevity Science and the School of Medicine. “That kind of…
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