| AC | Allium cepa |
| Bcl-2 | B-cell lymphoma 2 |
| COX-2 | Cyclooxygenase-2 |
| HO-1 | Hemeoxygenase-1 |
| IL-1β | Interleukin-1β |
| IL-6 | Interleukin-6 |
| iNOS | Nitric oxide synthase |
| LPS | Lipopolysaccharide |
| MEAC | Methanol extract of A. cepa |
| MPP+ | 1-methyl-4-phenylpyridinium |
| NDDs | Neurodegenerative diseases |
| NO | Nitric oxide |
| NQO1 | NAD(P)H Quinone Dehydrogenase 1 |
| TLR4 | Toll-like receptor 4 |
| TNF-α | Tumor necrosis factor-α |