| AF | Atrial fibrillation |
| AQP | Aquaporin |
| CHF | Chronic heart failure |
| DMD | Duchenne muscular dystrophy |
| Erev | Equilibrium potential |
| G | Membrane conductance |
| I | Transmembrane ionic current |
| ICa,L | L-type Ca2+ current |
| ICl(swell) | Swelling-activated Cl− current |
| IKr | Rapid delayed rectifier K+ current |
| IKs | Slow delayed rectifier K+ current |
| Kir | Inward rectifier K+ channels |
| NCX | Na+/Ca2+ exchanger |
| RyR2 | Ryanodine receptor 2 |
| SERCA | SR Ca2+ ATPase |
| SIDS | Sudden infant death syndrome |
| SK | Small-conductance Ca2+-activated K+ channel |
| SR | Sarcoplasmic reticulum |
| TRPV4 | Transient receptor potential vanilloid 4 |
| VACs | Volume-activated ion channels |
| [X]i | Intracellular ionic concentration |
| [X]o | Extracellular ionic concentration |
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