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This research aims to examine the role of SCN1B in cardiac electrophysiology and its impact on antiarrhythmic drug interactions.

BPS2026 – Investigating the role of SCN1B in the regulation of action potential prolongation

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This research aims to examine the role of SCN1B in cardiac electrophysiology and its impact on antiarrhythmic drug interactions.
Investigated the effects of β1 subunit deletion using a SCN1B knockout model.
Measured action potential duration and QT intervals under drug perturbation.
Utilized planar patching to compare effects between WTc and SCN1B KO models.
β1 subunit deletion caused significant changes in action potential duration and QT intervals.
Indicated a regulatory interaction between β1 and sodium late current.
Observed differential effects of lidocaine in SCN1B KO compared to WTc lines.

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Investigating how SCN1B influences cardiac action potentials and antiarrhythmic drug pharmacodynamics in cardiac arrhythmias.

Marquez et al. (2026) studied this question.

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