Figure 4.

Representative calcium transient tracings at optimal length in banded and sham-operated animals at 1.0 mM, 2.5, and 4.0 mM extracellular calcium concentration (A). Peak calcium to 50% decline significantly decreases from 1.0 to 2.5 mM and from 2.5 to 4.0 mM in both banded and sham (B). Also, peak calcium to 50% decline was significantly greater in banded compared to sham at 2.5 and 4.0 mM extracellular calcium concentration. Data collected at 2.5 mM [Ca²⁺]_o, 37°C. Sham-operated representative tracing experiment number 090706, banded representative tracing experiment number 090805. ^*P < 0.05, ^#P < 0.05 vs. SHAM.