Fig. 4

Histopatholoy of kidney tissue in different studied rat groups. Representative images of Hematoxylin and Eosin (original magnification × 200) stain of (1) cortical and (2) medullary areas and (3) Trichrome stain (original magnification × 200) are shown (scale bars = 100 μm). A Young control rats renal tissue with absent to minimal inflammation, no atrophy or fibrosis; B Old control rats kidney tissue exhibiting marked inflammation (long arrow), evidence of hyalin cast formation (arrow head), and mild tubulointerstitial atrophy and fibrosis (short arrow). C Treated old rats renal tissue with mild inflammation (long arrow), minimal atrophy and fibrosis (short arrow)