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. 2014 Sep 5;9(9):e106602. doi: 10.1371/journal.pone.0106602

Table 1. Heart failure ionic remodeling.

Ionic Parameter modified % in the HF model compared to the normal model Experimental conditions
GPB model ORd model
INaL 200% 180% Isolated cardiomyocytes from LV mid-myocardium of failing dog hearts [88] Whole cell voltage clamp (room temperature) [3]
τhL 200% 180% Isolated cardiomyocytes from LV mid-myocardium of failing dog hearts [88] Whole cell voltage clamp (room temperature) [3]
Ito 40% 40% Isolated cardiomyocytes from LV mid-myocardium of failing human hearts. Whole cell voltage clamp (room temperature) [4]
IK1 68% 68% Review article. Several species [5]
INaK 90% 70% Measurements of human myocardial [7] Na,K-ATPase concentration in failing hearts [5]Review article. Several species [6]
INab 0 100% Simulation of human HF [89]
ICab 153% Simulation of human HF [89]
INCX 175% 175% Simulation of human HF [90]
JSERCA 50% 50% Isolated cardiomyocytes from LV of failing human hearts. Measurements of Ca2+uptake rates by the SR (37°C) [8]
Ileak 300% 130% Review article [9]
EC50SR 89% Review article [10]Isolated cardiomyocytes from LV of failing rabbit hearts. Measurements of RyR sensitivity to SR Ca2+ [91]
CaMKa 150% Review article [10]. Transgenic mice [11]
Jrel,NP,∞ Ca2+sensitivity 80% Review article [92]

Changes in original Grandi et al. (GPB) [34] and O'Hara et al. (ORd) [35] models to simulate heart failure (HF) phenotype. The modified parameters are: the late Na+ current (INaL), the time constant of inactivation of the INaL (τ hL), the transient outward K+ current (Ito), the inward rectifier K+ current (IK1), the Na+/K+ pump current (INaK), the background Ca2+ current (ICab), the Na+/Ca2+ exchanger (INCX), the sarcoplasmic reticulum (SR) Ca2+ pump (JSERCA), the SR Ca2+ leak current (Ileak), the Ca2+ sensitivity of SR Ca2+ fluxes (EC50SR), the Ca+2calmodulin-dependent protein kinase II, and the non-phosphorylated Ca2+ release, via ryanodine receptors (Jrel,NP,∞).