Effect of genistein on voltage-gated potassium channels in guinea pig proximal colon smooth muscle cells

Figure 4 Effect of genistein (30 µmol/L) on current-voltage relationship of transient outward potassium current (I_Kto) in guinea pig proximal colon smooth muscle cells in the presence of TEA (10 mmol/L) and Cd²⁺ (0. 2 mmol/L). A: I-V curves of peak current density of voltage-gated potassium channels under control condition (solid square), in the presence of 10 mmol/L TEA (solid circle) as well as 10 mmol/L TEA and 30 µmol/L genistein (solid triangle); B: I-V curves of steady state current density of voltage-gated potassium channels under control condition, in the presence of 10 mmol/L TEA as well as 10 mmol/L TEA and genistein (30 µmol/L). n = 6 cells.