| ALS | amyotrophic lateral sclerosis |
| 5-HT | 5-hydroxytryptamine |
| 5-HT-ir | 5-HT-immunoreactive |
| 5-HTR | 5-HT receptor |
| CNS | central nervous system |
| ECl | chloride ion equilibrium |
| EGABAAR | reversal potential of GABAAR |
| HPLC | high-performance liquid chromatography |
| KCC2 | K+-Cl− cotransporter type 2 |
| NKCC1 | Na+-K+-2Cl− cotransporter isoform1 |
| MN | motoneuron |
| SC | spinal cord |
| SOD1 | superoxide dismutase 1 |
| TTX | tetrodotoxin |