Rats with fibrosis treated with PBS alone had 4-fold increase of serum ALT (533.6±45.1 U/dl) (Figure 7C) and 2.5-fold increase of serum AST (489.7±42.8 U/dl) (Figure 7D) activity relative to those with BMSCs group (ALT 136.1±38.6 U/dl, P<0.05 and AST 152.3±10.3 U/dl, P<0.01), respectively. This evidence concerns the gene GPT and fibrosis.