α-SMA, CTGF, TGF-β1, Smad3 and Smad7 protein and mRNA levels of rat PSCs. The western blot images of α-SMA, CTG, TGF-β1, Smad3, and Smad7. The protein and mRNA expression levels of α-SMA and Smad7 displayed no significant difference between the three groups. The protein and mRNA expression levels of CTGF, TGF-β1, and Smad3 in the palmitate (PA) group were higher than in the control group, and octreotide treatment significantly decreased their expression levels. Values are expressed as mean ± standard deviation. *P<0.05, **P<0.01 vs. the control group; #P<0.05, ##P<0.01 vs. the HFD group. α-SMA, α-smooth muscle actin; CTGF, connective tissue growth factor; TGF-β1, transforming growth factor-β1.