Abstract:Introduction:
Atrial fibrillation (AF) is the most common sustained arrhythmia, with an estimated prevalence in the U.S. of 6.1 million . AF increases the risk of a thromboembolic stroke in five-fold. Although atrial hypocontractility contributes to stroke risk in AF, the molecular mechanisms reducing myofilament contractile function in AF remains unknown. We have recently identified protein phosphatase 1 subunit 12c (PPP1R12C) as a key molecule targeting myosin light chain phosphorylation in AF.
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