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Fig. 5. Na influx as a function of time in washed red blood cells (RBCs) in the
presence of 104 mol l-1 ouabain in (A)
deoxygenated cells (equilibrated to humidified N2 for 10 min prior
to treatments) or (B) air-equilibrated cells. The Na influx was measured in
unstimulated cells to get the basal influx and in cells stimulated by
105 mol l-1 isoproterenol at time zero either
alone or in the presence of transport inhibitors. * indicates
statistical difference from basal influx within same time interval;
indicates statistical difference from influx in
isoproterenol stimulated cells within same time interval;
indicates statistical difference from same treatment in the 515 min
time interval. P<0.05. (A) N=4 and (B) N=6.