LLGL1 and Parkinson disease: The relative expression of microglia-attributed DEGs (Zeisel et al., 2015) across the sub-cell types (microglia: Mgl1, Mgl2 and perivascular macrophages: Pvm1, Pvm2) showed their strongest expression levels to be in Pvm1 (Figure 3D), which is in line with previous studies describing alterations in microglia as well as perivascular macrophages in Parkinson's disease patients (Wang et al., 2015).