Fig. (5) TGF-β1 real-time PCR. We compared TGF-β1 mRNA by real-time PCR. After the treatment with aldosterone and 1% NaCl, TGF-β1 mRNA is significantly increased (p < 0.05), and Sac/Val; sacubitril/valsartan (low and high dose) significantly decreases TGF-β1 mRNA compared to valsartan (low and high dose) (p<0.05). NT, non-treatment; CON, Control; Val, Valsartan; Sac/Val, Sacubitril/Valsartan.