In contrast, αsyn aggregate interactions (i.e., BAR-PSER129) were markedly different between MSA and PD/DLB, with several glial-enhanced proteins (CBR1, CRYAB, and GFAP) (Human Protein Atlas proteinatlas.org27)28 being more abundant in MSA αsyn aggregates (i.e., PD vs. MSA contrast). Here, GFAP is linked to Parkinson disease.