PÁSEK, Michal, Markéta BÉBAROVÁ, Georges CHRISTÉ, Milena ŠIMURDOVÁ and Jiří ŠIMURDA. Effect of ethanol on action potential in ventricular cardiomyocytes: experimental and computational approach. In Physiology 2014. 2014.
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Basic information
Original name Effect of ethanol on action potential in ventricular cardiomyocytes: experimental and computational approach
Name in Czech Účinek etanolu na akční napětí u komorových kardiomyocytů: experimentální a výpočtový přístup
Authors PÁSEK, Michal, Markéta BÉBAROVÁ, Georges CHRISTÉ, Milena ŠIMURDOVÁ and Jiří ŠIMURDA.
Edition Physiology 2014, 2014.
Other information
Original language English
Type of outcome Conference abstract
Field of Study 30105 Physiology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Faculty of Medicine
Keywords in English ethanol; cardiac cell; action potential; rat ventricular cell model; human ventricular cell model
Tags International impact, Reviewed
Changed by Changed by: doc. Ing. Michal Pásek, Ph.D., učo 46541. Changed: 17/9/2014 14:38.
Abstract
In this work, the concentration dependences of ethanol-induced inhibition/activation of ionic currents derived from experimental data were incorporated into the published models of rat and human ventricular cardiomyocyte with the aim to assess the share of ionic current components in ethanol-induced changes of AP configuration. Our results suggest that contribution of individual ionic current components to the effect of ethanol on AP repolarization in cardiac cell is strongly dependent on species differences in current densities. Because AP configuration in the human model shows only a small sensitivity to variations of IK1, the effect of ethanol-induced inhibition of IKr predominates implying prolongation of APD. This effect might contribute to the clinically observed prolongation of QTc interval in ECG under consumption of alcohol.
Links
NT14301, research and development projectName: Vliv ethanolu a jeho metabolitu acetaldehydu na srdeční inward rectifier draslíkové proudy: vztah k fibrilaci síní po konzumaci alkoholu?
Investor: Ministry of Health of the CR
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