Fig. 3

The scanning electron microscope examination of both kidneys after TBI. a Degeneration and necrosis of tubular cells (arrows) and inflammatory cell infiltration of the renal interstitium (triangle) were observed 24 h after TBI at dose of 14 Gy. b Formation of tube casts and the degeneration and necrosis of tubular cells (arrows) were observed 6 h after TBI at dose of 14 Gy. (H&E stain, original magnification 10 × 20). c There were overlying epithelial cell foot processes in the control group (arrows). d 6 h after TBI at dose of 11 Gy, the overlying epithelial cell foot processes were effaced and ran together (arrows); Also observed were the chromatin condensation and swelling of the endothelial cells (triangle). e Normal structure of renal tubule epithelial cells in the control group (pentagon). f 6 h after TBI at dose of 8 Gy, there were pyknotic nuclei, chromatin condensation of renal tubule epithelial cells (pentagon), dilatation of the mitochondria, numerous lysosomal structures, and lipid droplets (arrows). (Magnification: ×10,000)