Figure 2. Effect of 18β-glycyrrhetinic acid on membrane currents recorded from smooth muscle and endothelial cells.

Membrane currents induced by step depolarizations (top traces) in a smooth muscle (A) and in an endothelial cell (B). Currents were recorded before (controls) and 1, 2 and 3 min after application of 18β-glycyrrhetinic acid (40 μM). Signals were filtered at a cut-off frequency of 10 kHz.