Alzheimer's disease, a type of dementia that profoundly alters a person’s memory and cognitive function, affects an estimated 6.7 million U.S. adults at least 65 years old, according to the ...

The results showed that patients with amyloid values of over 7.1 in their CSF had PET scans that mostly did not pick up anything abnormal—meaning they tested negative for Alzheimer's.

"Studies have shown that vulnerability to Alzheimer's-related changes in the brain increase in women from pre- to ...

MONDAY, March 10, 2025 (HealthDay News) -- Hormone replacement therapy during menopause appears to be linked to a toxic brain ...

One exam, a tau PET scan, relies on a radioactive tracer ... the clumping of tau is more of a defining event for Alzheimer’s. “Amyloid beta is a kindling, and tau is a matchstick,” Karikari ...

These proteins also form clumps in the brain, and their presence is more reliably associated with Alzheimer's disease than amyloid-beta clumps. Positron emission tomography (PET) scans are good at ...

Sex differences in tau may help explain why women face higher Alzheimer's dementia risk than men. At high levels of brain ...