| AP | Action potential |
| BKCa | Channel large-conductance Ca2+-activated K+ channel |
| EC50 | The concentration required for 50% stimulation |
| HCN channel | Hyperpolarization-activated cyclic nucleotide-gated ion channel |
| IC50 | The concentration required for 50% inhibition |
| ICa,l | l-type Ca2+ current |
| Ih | Hyperpolarization-activated cation current |
| IK(Ca) | Ca2+-activated K+ current |
| IK(M) | M-type K+ current |
| IK(TO) | Transient outward K+ current |
| I–V | Current versus voltage |
| PTER | Pterostilbene (trans-3,5-dimethoxy-4′-hydroxystilbene) |
| SEM | Standard error of the mean |
| τ | Time constant |
| TEA | Tetraethylammonium chloride |
| TTX | Tetrodotoxin |
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