Western blot analysis was performed on flash-frozen LV tissue samples as previously described (26 (link), 32 (link)). Briefly, we extracted protein from LV tissues and performed immunoblotting for various proteins using the following primary antibodies: SERCA2a, NCX1 (Thermo Fisher Scientific), PLN-PSer16, total PLN (Badrilla Ltd), Akt-PSer473, Akt-PThr308, total Akt (Cell Signaling), AMPK-PThr172 and total AMPK (Cell Signaling) and subsequently incubated with HRP conjugated secondary antibodies respectively.
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