| BBB | blood–brain barrier |
| CCK-8 | cell counting kit-8 |
| CNS | central nervous system |
| COX-2 | Cyclooxygenase-2 |
| ECM | extracellular matrix |
| ELISA | enzyme-linked immunosorbent assay |
| GAG | glycosaminoglycan |
| GSH | reduced glutathione |
| GSSG | oxidized glutathione |
| H&E | hematoxylin and eosin |
| HA | hyaluronic acid |
| HABP | hyaluronic acid binding protein |
| IF | immunofluorescence |
| IHC | immunohistochemistry |
| IL-1β | interleukin-1 beta |
| IL-6 | interleukin-6 |
| LBs | Lewy bodies |
| LPS | lipopolysaccharide |
| MPTP | 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine |
| PBS | phosphate-buffered saline |
| PD | Parkinson’s disease |
| SCFAs | short-chain fatty acids |
| SH | sodium hyaluronate |
| SN | substantia nigra |
| SNpc | substantia nigra pars compacta |
| TH | tyrosine hydroxylase |
| TNF-α | tumor necrosis factor alpha |
| WB | Western blot |
| α-syn | α-synuclein |