Fig. 2

Photomicrographs of sections in kidney tissues of different groups of rats treated with different nanomaterials: (a) A section in the group treated with group D, showing few mononuclear inflammatory cells infiltration (arrow) (H & E X400). (b) A section in the group treated with group D, note mononuclear inflammatory cells infiltration (arrow) (black arrow) and degeneration of renal tubular epithelium (white arrow) (H & E X400). (c) A section in the group treated with group E, showing capsular edema and inflammatory cells infiltration (black arrow) with interstitial mononuclear inflammatory cells infiltration (white arrow) (H & E X400). (d) A section in the group treated with group E, note heavy infiltration of interstitial tissue with mononuclear inflammatory cells (arrow) (H & E X200). (e) Higher magnification of the previous photo showing mononuclear inflammatory cells infiltration (arrow) (H & E X400). (f) A section in the group treated with group E, showing congestion of interstitial blood vessels (black arrows) with vacuolar degeneration of tubular epithelium (white arrows) (H & E X400). (g) A section in the group treated with group F showing cystic dilatation and necrosis of renal tubule (arrow) (H & E X400). (h) A section in the group treated with group F, showing congestion of interstitial blood vessels (black arrow) and mononuclear inflammatory cells infiltration (white arrow) (H & E X400)