FIGURE 5.
PET studies using [11C]-PK11195 to localize age-associated microglial activation in white matter. Axial image of the human brain showing white matter [11C]-PK11195 average uptake in (A) young and (B) middle aged healthy volunteers (n = 7); (C) Positive correlation between [11C]-PK11195 binding potential (BPP) in the total corpus callosum and age of subjects.