Review Article
Myocardial Ischemia and Diabetes Mellitus: Role of Oxidative Stress in the Connection between Cardiac Metabolism and Coronary Blood Flow
Table 1
Coronary ion channels and their physiological role in the regulation of coronary vascular tone.
| Ion channel | Membrane effect | Functions |
| Nav | Depolarization | Endothelial-dependent coronary vasodilation | Cl- | Depolarization | Endothelial-independent vasoconstriction | Cav | Depolarization | Coronary vasoconstriction; coronary autoregulation and control of coronary microvascular resistance | Kv | Hyperpolarization | Endothelial-dependent and -independent coronary vasodilation | KATP | Hyperpolarization | Coronary vasodilation and metabolic regulation of coronary blood flow | KCa | Hyperpolarization | Redox-sensitive channel, coronary dilatation in response to endothelial-derived hyperpolarizing factor (EDHF), lipoxygenase metabolites, and H2O2 |
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