Fig. 7

TEM images of kidney ultrastructure changes after i.v. injection of 15 mg/kg s-GOs and l-GOs at 48 h post-injection (n = 3). Ultrastructural changes of the glomerulus (a) and renal tubular (b). c Statistical measures of GBM thickness; podocyte foot process width; foot process length and slit diaphragm perimeter. d Statistical measures of renal tubule brush border loss. GBM: glomerular basement membrane. *p < 0.05 and ***p < 0.001 indicate the statistical difference between treated group and the controls. ^#p < 0.05 and ^###p < 0.001 indicate the statistical difference between s-GO and l-GO treated group