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Fig. 5. K+ influx into trout hepatocytes as a function of oxygen concentration. (A) Active and passive components of K influx as a function of oxygen concentration. Active K+ influx was calculated as difference in K+(86Rb) uptake in the presence or in the absence of 100 µmol l-1 ouabain. Cells were incubated at different oxygen concentrations for 15 min. Data are means of five independent experiments ± S.E.M. According to the results of Dunnett multiple comparison test (one-way ANOVA), *P<0.05 and **P<0.01 when compared with 21% O2 `control'. (B) Kinetics of the changes in active K+ influx and cellular ATP levels in trout hepatocytes exposed to 1% O2. Data are means ± S.E.M. of four or five independent experiments. *P<0.05.





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