Fig. 6. Redox-sensitivity of active (A) and passive (B) K⁺ influx in cells incubated at 21 or 1% O₂. Cells were exposed to hypoxic or normoxic conditions in the presence or in the absence of 1 mmol l^-1 CDNB or 5 mmol l^-1 MPG for 15 min. Data are means ± S.E.M. of four independent experiments. ^*P<0.05; ^**P<0.01.