Tau level in plasma may be a biomarker
Thursday 07 June 2012
An American research team has found significantly lower tau levels in plasma in people with Alzheimer's disease compared to those with no sign of cognitive decline. Study results showed that levels of tau in cognitively normal seniors were nearly three times greater than those with cognitive impairment.
Dr. Larry Sparks, Senior Scientist at the Banner Sun Health Research Institute in Arizona, said: "As cognitive performance declines so do the circulating levels of tau.
"Overall, the data suggest that changes in plasma total tau levels may provide a new avenue of identifying the onset of mild cognitive impairment and the ensuing Alzheimer's disease."