TMEM119 and Parkinson disease: Stereological analyses revealed that densities of TMEM119-positive microglia in the substantia nigra were significantly higher by 408.62% in MMD-LB (22123.65 ± 4183.91/mm3), 296.85% in PD (17261.94 ± 4131.50/mm3), and 343.99% in PSP (19312.35 ± 5157.73/mm3) groups relative to the control (4349.69 ± 1903.06/mm3) group (p > 0.0001 across groups; Figure 4M).