Cell Volume and Sodium Content in Rat Kidney Collecting Duct Principal Cells During Hypotonic Shock

Figure 5

Time course of intracellular sodium concentration in OMCD principal cells. Effect of hypotonic medium (representative curve). $▼$: gradient signal from the valve (same as in Figure 4). (1) control normal PBS $[{\text{Na}}^{+}{]}_{\text{i}}$ 280 mM. (2) steady state in hypotonic 0.5 PBS $[{\text{Na}}^{+}{]}_{\text{i}}$ 140 mM.