Figure 5. Purinergic evoked calcium transients are mediated via intracellular calcium release.
Slices were superfused with multiple applications of 10 μM UTP in 5 min. acute (A) or 15–30 min. chronic (B,C) presence of 10 μM cyclopiazonic acid (CPA) or vehicle (0.1% DMSO). (▲ indicates time of UTP superfusion, □ indicates time of drug superfusion). Right panels: Average peak calcium transient amplitudes are shown *, p<0.001.