Astroglial Responses to Amyloid-Beta Progression in a Mouse Model of Alzheimer's Disease.

MAO-B levels are increased early in Aβ pathology progression, while GFAP and vimentin appear to increase later, most likely as a consequence of abundant Aβ plaque formation. Thus, [11C]DED is a useful PET radioligand for the detection of changes in MAO-B at an early stage of AD progression but does not measure the total extent of astrogliosis at advanced stages of Aβ pathology.