Skip to main content
. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Cell Calcium. 2011 Feb 23;49(3):162–173. doi: 10.1016/j.ceca.2011.01.008

Figure 9. The effect of low extracellular [Na+] on pH sensitivity of IBa.

Figure 9

Panels A–F show Ba2+ current traces measured in the presence of 145 (A, C, E) and 10 mM (B, D, F) extracellular Na+ in individual cells where the response to low Na+ at pH 7.4 was compared that at either pH 10 (A–B), 8 (C–D), or 6 (E–F) G) Percent IBa compared to the current magnitude at pH 7.4 in response to varying extracellular pH values. H) I-V relation of IBa in 145mM external Na+ and pH 7.4 (△) or pH 6.0 (▽) (N=4). I) I-V relation of IBa in 10 mM external Na+ and pH 7.4 (△) or pH 6.0 (▽) (N=4). L) Voltage-dependence of IBa suppression in pH 6 and high or low external Na+ (N=3–4).