Planned contrasts showed that the SOD− group drove the AF reduction within the AS group: nb streamlines SOD− < TYP (Bonferroni P = 0.056, Dunnet’s t-test: P = 0.018, Cohen’s d = 0.67), SOD+ ≈ TYP (Dunnet’s t-test: P = 0.088, Cohen’s d = 0.45); volume SOD− < TYP (Bonferroni P = 0.013, Dunnet’s t-test: P = 0.004, Cohen’s d = 0.83), SOD+ ≈ TYP (Dunnet’s t-test P = 0.111, Cohen’s d = 0.54; Fig. 3). This evidence concerns the gene SOD1 and atrial fibrillation.