Nav1.5 regulates intrinsic cardiac neuronal excitability and expands the cellular basis of SCN5A channelopathies
Background Loss- and gain-of-function variants in SCN5A, encoding the cardiac sodium channel Nav1.5, are major causes of inherited cardiac channelopathies. Their pathophysiology has almost exclusively been attributed to altered cardiomyocyte excitability and cardiac conduction. However, growing evidence indicates that...