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Longitudinal trends in AFS parameters measured for both groups across time: total fluorescence intensity (A), collagen + elastin (B), optical redox ratio (C), and fluorescence residual (D). The bars represent the means for each parameter computed across all available animals, at each particular time point, for both the treated (red) and control (blue) groups. The error bars are SEs. The dashed lines represent the corresponding regression lines. P values are shown at the top of each.
