Cardiac Myocyte Excitability

Cardiac myocyte excitability refers to the ability of heart muscle cells to generate and propagate action potentials, leading to muscle contraction. It is influenced by various ion channels, including sodium and potassium channels, and can be affected by oxidative stress and other factors. Alterations in cardiac excitability can lead to arrhythmias and other cardiovascular issues. Ion channels involved include Sodium channels (e.g., NaV1.5), potassium channels (e.g., Kir2.1), and calcium channels. Understanding these mechanisms is crucial for developing treatments for cardiovascular diseases.

Modulation of ion channels to alter the action potential duration and excitability of cardiac myocytes.