Key result
Inhibition of the cardiac pacemaker 'funny' (If) current with agents like ivabradine reduces the steepness of diastolic depolarization and lowers heart rate in rabbit sinoatrial node cells.
Why the study?
Does If inhibition reduce the steepness of diastolic depolarization and frequency in rabbit sinoatrial node cells?
Does If inhibition reduce the steepness of diastolic depolarization and frequency in rabbit sinoatrial node cells?
Ivabradine provides specific, use-dependent heart rate reduction by blocking the If current in sinoatrial node cells, offering a novel therapeutic mechanism.
Authors
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May refine pacemaker mechanism models in research; leaves open any shift in clinical rate-control strategies.
Dario DiFrancesco (2003) studied this question. Ivabradine and specific If channel blockers was evaluated on Heart rate reduction and slope of diastolic depolarization. Inhibition of the cardiac pacemaker 'funny' (If) current with agents like ivabradine reduces the steepness of diastolic depolarization and lowers heart rate in rabbit sinoatrial node cells.
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