Fig. 5From: Fermentation of Panax notoginseng root extract polysaccharides attenuates oxidative stress and promotes type I procollagen synthesis in human dermal fibroblast cellsEffects of different concentrations of FPNP on H2O2-induced changes of mRNA expression of TGF-β/Smad signaling pathway-related genes including Smad2(a), Smad3(b), Smad4(c), TGF-β(d) and Smad7(b) in HDFs cells pretreated with different concentrations of FPNP, and each mRNA is normalized to ribosomal protein GAPDH and expressed relative to the control levelBack to article page