Figure 6.

Internal calcium requirements for endogenous amino acid release from acute cortical slices. A) Release of endogenous d-serine by 100 μM veratridine in control slices (•) or slices preloaded with 50 μM BAPTA-AM (○). Release medium contained 0.2 mM EGTA to chelate external Ca²⁺. B) Endogenous l-glutamate release elicited by veratridine was inhibited by preincubation with BAPTA-AM. Results represent means ± se of 4 experiments with different slice preparations done in triplicates. ***P < 0.001 vs. control.