New brain scan to detect early stage of AD

A new brain scan can detect Alzheimer’s even before any symptoms appear, according to a recent study at UCSF! Early diagnosis of the disease has been an elusive goal so far. The scanning technique to identify the presence of beta-amyloid plaques has not been sufficient because healthy brains also have this protein. But the new approach uses radioactive tracers that attach themselves to the tau tangles which then also show up in PET scans. Now, by viewing the two proteins, beta-amyloid and tau together, scientists are able to track their levels of progression and predict which patients are at higher risk of developing Alzheimer’s. With early diagnosis, prevention will be the next Holy Grail.