FGF23 and infection: Following infection of C57Bl/6J mice atrial myocytes with FGF23‐overexpressing lentiviral vector (FGF23‐OE) and control vector, qRT‐PCR and Western Blot analysis showed that upon overexpression of FGF23, the expression of FGF23 mRNA and FGF23 protein in rat atrial myocytes was significantly increased (Figure 1E).