Figure 2.

Effects of resveratrol on aging-related histological renal injury. (a) Representative photomicrographs of the periodic acid–Schiff-(PAS)-stained kidney showed less expansion of the mesangial area in the RSV group (original magnification 400×). (b) Representative sections of the Masson’s trichrome-stained kidney showed significantly less tubulointerstitial fibrosis in the RSV group (original magnification 200×). (c) Quantitative assessments of the areas of extracellular matrix in the glomerulus. (d) Quantitative assessment of the areas of tubulointerstitial fibrosis in the control and RSV groups (** p < 0.01, *** p < 0.001).