Why the study?
How do arrhythmogenic calmodulin mutations affect RyR2-mediated Ca2+ release?
Population
In vitro model studying cardiac ryanodine receptor 2 (RyR2) and calmodulin (CaM)
Comparison
CaM mutations causing CPVT, long QT syndrome, or… vs Wild-type CaM (CaM WT)
Design
Preclinical
Authors
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Supports RyR2 dysregulation by CaM mutations as arrhythmogenic mechanism; hypothesis-generating for CPVT/LQTS therapies.
How do arrhythmogenic calmodulin mutations affect RyR2-mediated Ca2+ release?
Arrhythmogenic CaM mutations increase RyR2-mediated Ca2+ release and susceptibility to SOICR, supporting aberrant RyR2 regulation as a disease mechanism for CPVT and LQTS.
Søndergaard et al. (2015) studied this question.
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