New dye for brain scans

News from the web:

Last week the Food and Drug administration approved a new dye that will make it easier for doctors to spot signs of Alzheimer’s disease on brain scans.

It is a weakly radioactive dye to search for the presence of plaques in a living patient. The dye binds to the starchy amyloid that builds up in the brains of Alzheimer’s patients and can be visualized in a PET scan. It is not certain that the plaques cause Alzheimer but the presence of these plaques is highly correlated with the disease.

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