Figure 1.

Effect of exosomes on biochemical parameters and hepatocyte injury after CCl4 treatment in vivo. Serum (A) aspartate aminotransferase (AST) and (B) alanine aminotransferase (ALT) levels were measured after 24-hour dosing of CCl4 with or without exosomes administration (n = 6 per group; *P < 0.05 versus of CCl4 control for both AST and ALT). Standard hematoxylin and eosin (H&E) staining for liver tissue harvested after 24 hours of (C) CCl4 administration and (D) CCl4 with exosomes treatment. Obvious hepatic necrosis appeared in the section from a CCl4-treated animal. Original magnification × 80; scale bar, 100 μm.