Common Genetic Variants of The Cardiac Sodium Channel Alter Patient Response to Class 1b Antiarrhythmics
Martina Marras, Joshua D Josef, Thomas Schuster, Heather L. Struckman, Emily Wagner, Lucas Lee, Kyle Smith, Janice M. Amsler, Lucy S. Woodbury, Erica Marquez, Nathaniel Huebsch, Jonathan D. Moreno, Jennifer NA Silva, Jonathan R. Silva
The paper shows that a common SCN5A variant, S1103Y, alters mexiletine's pharmacological response in induced pluripotent stem cell-derived cardiomyocytes, leading to proarrhythmic effects.
The Journal of Precision Medicine Health and Disease · Mar 19, 2026Peer-reviewedPhysiology