SuperAgers who maintain their cognitive abilities have resistance to the development of Alzheimer's related tau tangles. The resistance to tangles may help to preserve memory.
Study identifies a new "seeding" process in neurons that could be a cause of dementia and Alzheimer's disease.
A new automated method can identify and track the development of tau deposits in the brain. The method could lead to an earlier diagnosis of Alzheimer's disease.
Impaired blood flow to specific areas of the brain coincides with Tau buildup in Alzheimer's patients. As cognition declines, the relationship between vascular dysfunction and Tau accumulation strengthens.
Altered expression of FYN, a gene associated with the production of Tau, was identified in the brains of people addicted to heroin. Findings suggest opioid use can affect the brain in a way that might cause vulnerability in neural systems that can trigger neurodegeneration later in life.
Early postmenopausal estrogen replacement therapy may protect some women from developing Alzheimer's disease.
Blood samples taken from people enrolled in an Alzheimer's research study revealed higher levels of phosphorylated tau 217 that correlated with the presence of amyloid plaques. People with amyloid in their brains had up to three times more of the tau protein in their blood than those who had no evidence of amyloid accumulation. The higher levels of the protein were evident even in people with no signs of cognitive decline.
PET neuroimaging reveals super-agers and those whose cognitive skills are above the norm for an advanced age have an increased resistance to tau and amyloid proteins.