Fig. 5

Strong TSPO immunoreactivity in a subset of tyrosine hydroxylase+ neurons in the striatum. a–f Representative samples of double-label immunostained 5 μm brain sections for TSPO (red) and Iba-1 (brown). a Buffer OPN+, b HIV OPN+, c HIV OPN+, d Buffer OPN-, e HIV OPN-, f Buffer OPN-. g hematoxylin/eosin stained section, and serial adjacent sections stained with h TSPO and i tyrosine hydroxylase. The black ovals demarcate the region of interest in each section