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. 2022 Jan 26;11(3):427. doi: 10.3390/cells11030427

Figure 1.

Figure 1

H&E staining reveals no increase in endo-perimysial fibrosis. In (A); representative example of cardiac bundle and perimysial space in human atrial tissue. Circle presents a cardiac bundle, white arrow shows perimysial space, and black arrow shows endomysial space. No significant difference between stages of AF and control SR group in terms of endomysial fibrosis (N = 8, SR; N = 8, ParAF; N = 8, PerAF; N = 5, LS PerAF) (B), and perimysial fibrosis (N = 8, SR; N = 8, ParAF; N = 8, PerAF; N = 5, LS PerAF) (C); respectively, p = 0.77 and p = 0.7542. SR = control group, ParAF = paroxysmal atrial fibrillation, PerAF = persistent atrial fibrillation, LSPerAF = longstanding persistent atrial fibrillation. Statistical tests used: ANOVA.