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Intercalated discs (ICDs) are cardiac-specific structures responsible for mechanical and electrical communication among adjacent cardiomyocytes and are implicated in signal transduction. The striated muscle-specific Xin repeat-containing proteins localize to ICDs and play critical roles in ICD formation and cardiac function. Knocking down the Xin gene in(More)
Mouse Xin-alpha (mXin-alpha) encodes a Xin repeat-containing, actin-binding protein localized to the intercalated disc (ICD). Ablation of mXin-alpha progressively leads to disrupted ICD structure, cardiac hypertrophy and cardiomyopathy with conduction defects during adulthood. Such conduction defects could be due to ICD structural defects and/or cell(More)
Several lines of evidence point to a particularly important role of the left atrium (LA) in initiating and maintaining atrial fibrillation (AF). This role may be related to the location of pulmonary veins (PVs) in the LA. The aim of the present study was to investigate the action potential (AP) and ionic currents in LA-PV cardiomyocytes isolated from(More)
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