Fig. 8From: Iron oxide nanoparticles induce reversible endothelial-to-mesenchymal transition in vascular endothelial cells at acutely non-cytotoxic concentrationsa Representative images of liver sections with Masson’s trichrome staining (blue color pointed by green arrows) for extracellular matrix collagen. b Quantification of collagen volume fraction. Data are mean ± SD, n = 4, one-way ANOVA with LSD-t, *p < 0.05, ** p < 0.01Back to article page