Notch1 signaling regulates Stat3 phosphorylation and the expression of Bcl-xl and Bax in H9c2 cells exposed to ischemia. A, The phosphorylation of Stat3 in different groups of H9c2 cells. B, The expression of Bcl-xl and Bax in different groups of H9c2 cells. β-actin was loading control. Data were presented as mean±SD, n=3. Mock1 indicated cells infected with empty vector, Mock2 indicated cells infected with vector containing nonspecfic sequences. ▲P>0.05, *P<0.05, **P<0.01.