X

New Brain Scan Tests for Alzheimer's

Chemical marks amyloid proteins that show up in scan
By Mark Russell,  Newser Staff
Posted Apr 9, 2012 3:56 AM CDT

(Newser) – A new test to help detect Alzheimer's disease has been approved by the FDA, raising hopes of improving early detection of the degenerative brain disorder, reports the Wall Street Journal. The test uses a radioactive agent that tags a protein called amyloid, which, when present in the brain, is a major sign of Alzheimer's. After an individual takes the agent—florbetapir—the brain can be scanned for clumps of amyloids.

story continues below

The chemical doesn't come cheap, though—Eli Lilly is charging $1,600 per dose. But it is a big step forward. Until now, the presence of amyloid plaques could only be checked by an autopsy. The chemical isn't a complete answer, either, as amyloids can be found in healthy people, too. "It is likely to play an important role in learning both how to diagnose and treat the disease, but it's still an open question at this point for asymptomatic people," said one doctor. (Read more Alzheimer's Disease stories.)

We use cookies. By Clicking "OK" or any content on this site, you agree to allow cookies to be placed. Read more in our privacy policy.
Get the news faster.
Tap to install our app.
X