Figure 3: Effect of barley bran and oat bran supplementation for 2 months on testicular structure in rats with induced hypercholesterolemia. (a) Control rats showing normal and regular seminiferous tubules (arrows), (b) hypercholesterolemia group showing the pathologic effects in which the structures of the seminiferous tubules were severely damaged, and thickness of the tubular walls was increased (short arrow) and number of germinal cells was greatly decreased with a disturbance in their diameter (long arrow), (c) oat bran-treated group showing normal and regular seminiferous tubules, and germinal cells were greatly regulated with normal diameter and mild dilatation of the seminiferous tubules with normal complete spermatogenic series (short arrow) with normal thickness (long arrow), and (d) barley bran-treated group showing normal seminiferous tubules with normal germinal cell layers (arrows). ×400 (H&E Stain).