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. 2022 Dec 5;22(1):e13743. doi: 10.1111/acel.13743

FIGURE 4.

FIGURE 4

AF inducibility and the senescence and fibrosis‐associated proteins in atrial tissue of C57BL/6 mice with different ages. (a). Surface electrocardiogram (ECG) showing that AF was successfully induced by atrial burst stimulation in mice. (b) The inducible rate of AF in mice with different ages. n = 12. *p < 0.05 vs. 5 m mice. (c) Representative Masson staining of atrial specimens from mice of different ages. Scale bars, 50 μm. (d–f). Representative immunoblots and densitometric analysis of p300/CBP, senescence, and fibrosis‐associated proteins in atrial tissues from mice with different ages. n = 6–8. *p < 0.05, **p < 0.01 vs. 7‐week mice; # p < 0.05, ## p < 0.01 vs. 5 m mice. Data are mean ± SEM.