Fig. 8. (A) Removal of extracellular Na+ leads to an intracellular
alkalinization (0.22±0.03 pH units; N=29). (B) Removal of
extracellular glutamate induces an intracellular alkalinization
(0.13±0.02, N=6) that is not significantly different from that
observed under Na+-free conditions (P>0.05) (C). Data
in C are means ± s.e.m.