Cardiac ion channel modulation

Cardiac ion channels are membrane-embedded proteins critical for the generation and propagation of electrical impulses in the heart. These include multiple families—voltage-gated sodium, calcium, and potassium channels—and are responsible for the phases of the cardiac action potential. Modulation of these channels, whether by drugs or endogenous factors, offers a vital therapeutic approach in treating cardiac arrhythmias, hypertension, and other heart diseases, but requires careful balance due to the risk of adverse events such as proarrhythmia. Instead of representing a single molecular target, "cardiac ion channel modulation" encompasses modulation of several distinct ion channel types, each with specific molecular identity and therapeutic relevance.

Other names

Cardiac ion channelscardiac sodium channelcardiac potassium channelcardiac calcium channel

Channel blockade (inhibition of ion flux); Channel activation (facilitation of ion flux); Channel modulation (change gating properties, e.g., prolongation/reduction of action potential duration); Altered channel expression or trafficking; Allosteric modulation (affecting associated proteins)