TABLE 1.
Abbreviations and acronyms
| AP | Action potential |
| APA | Action potential amplitude |
| APD(90) | Action potential duration (at 90% repolarization) |
| βAS | β-adrenergic stimulation |
| BP | Biological pacemaker |
| CL | Cycle length |
| C-LTCC | High voltage-activated L-type Ca2+ channel |
| D-LTCC | Low voltage-activated L-type Ca2+ channel |
| EP | Equilibrium point |
| hESC | Human embryonic stem cell |
| HVM | Human ventricular myocyte |
| Ibias | Constant bias current |
| ICa,L | L-type Ca2+ channel current |
| IK | Delayed-rectifier K+ current |
| IKr | Rapidly activating component of IK |
| IKs | Slowly activating component of IK |
| IK1 | Inward-rectifier K+ current |
| INa | Na+ channel current |
| INaCa | Na+/Ca2+ exchanger current |
| Ito | 4-Aminopyridine-sensitive transient outward current |
| IX,b | Background current carried by ion X |
| Ih | Hyperpolarization-activated current |
| MDP | Maximum diastolic potential |
| ODE | Ordinary differential equation |
| PB | Priebe-Beuckelmann |
| POP | Peak overshoot potential |
| SA | Sinoatrial |
| SR | Sarcoplasmic reticulum |
| V | Membrane potential |
| V0 | Steady-state potential at an EP |
| [Ca2+]rel | Free Ca2+ concentration in the junctional SR |
| [Ca2+]up | Free Ca2+ concentration in the network SR |
| [X]i | Intracellular concentration of ion X |
| [X]o | Extracellular concentration of ion X |