Figure 6.

Inhibition curves of hAKR1B1 by soyasaponins. Authentic standards of SSBa (Panel A) and SSBb (Panel B) were used to evaluate the dose-dependent inhibitory effect on 8 mU of the enzyme acting either on 0.8 mM of l-idose (circles) or 0.04 mM of HNE (triangles). Error bars (when not visible are within the symbol size) represent the standard deviations of the mean from three to five independent measurements. Asterisk(s) indicate significant differences between l-idose and HNE (*p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001).