Figure 4
The current tracings, I–V relationship of the nickel-sensitive Na+–Ca2+exchanger (NCX) currents in the control (n = 14) and leptin-treated LA myocytes (n = 14). The leptin-treated LA myocytes have significantly smaller nickel-sensitive NCX currents than the control LA myocytes do. The insets in the current traces show the various clamp protocols. *p < 0.05; ***p < 0.005 versus control LA myocytes.