| Name | Neurotransmitter System Disease Comparison |
| Category | neurotransmitter, dopamine, serotonin, GABA |
| Summary | Cross-disease comparison of neurotransmitter alterations in AD, PD, ALS, FTD, and HD — dopamine, serotonin, GABA, glutamate, acetylcholine systems |
| Key Genes/Proteins | NFE2L2, NRF2 |
| Linked Hypotheses | 5 hypotheses |