Mechanisms underlying variations in excitation–contraction coupling across the mouse left ventricular free wall

Ca2+ release during excitation–contraction (EC) coupling varies across the left ventricular free wall. Here, we investigated the mechanisms underlying EC coupling differences between mouse left ventricular epicardial (Epi) and endocardial (Endo) myocytes. We found that diastolic and systolic [Ca2+]i...

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