Blood Test Biomarkers for Alzheimer’s Disease

Adam Boxer, MD, PhD of the University of California San Francisco and associates published in Lancet Neurology a study which discussed their identifying two chemical biomarkers that distinguish normal patients from those with Alzheimer’s disease or other types of dementia. The two blood markers, phosphorylated tau 217 (p-tau217) and phosphorylated tau 181(p-tau181) showed “exquisite sensitivity and specificity” for discriminating Alzheimer disease from normal and other entities.

These biomarkers are currently only being used for research purposes and are not available to be used by doctors and patients through commercial labs yet. The researchers believe a commercially available lab test will be developed within the next few years