Figure 1. Histopathological evaluation of rat kidneys after 45 minutes of ischemia followed by 24 hours reperfusion. The kidney sections were stained by periodic acid Schiff (PAS) and then examined using a light microscope. (A) The normal renal tissue structure in the sham group (40 × PAS). (B) Thickening of the Bowman capsule basement membrane and hyaline cast (hc) in the IR group (40 × PAS). (C) The normal Bowman capsule basement membrane in the MEL group (40 × PAS). (D) Thickening of the Bowman capsule basement membrane in the EPO group (40 × PAS).