Action potential voltage clamp analysis of rate-dependent changes of action potential in rat ventricular myocytes
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| Year of publication | 2005 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | The main determinants of rate-dependent of action potential duration in rat ventricular myocytes are variations of the L-type calcium current ICa-L (gradual increase caused by modulatory effect of the Ca2+ transient) and the transient outward current Ito (decrease due to cumulative inactivation). These contemporary variations of ICa-L and Ito supported each other in the rate-dependent modulation of action potential prolongation. Under our experimental conditions, participation of other currents was negligible. |
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