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. 2002 Feb 1;538(Pt 3):759–771. doi: 10.1113/jphysiol.2001.012915

Figure 9. Sustained inward hH1 currents in 130 mm external sodium after AC modification in 0 mm external sodium.

Figure 9

A, control hH1 currents in 0 mm external sodium. B, AC-modified currents in 0 mm external sodium. The channels were modified by perfusing the cell with 100 μm AC (in 0 mm external sodium solution) and delivering 50 pulses to −10 mV. C, AC-modified hH1 currents in 130 mm external sodium solution (same cell). Note the sustained inward currents (arrow) during voltage steps ranging from −90 to −70 mV. Scale, 1 nA, 2 ms.