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. 2017 May 10;174(13):2060–2073. doi: 10.1111/bph.13804

Figure 7.

Figure 7

ZP1609 enhances the uptake of K+ in IFM, but not in SSM. (A) Original traces showing PBFI fluorescence in arbitrary units (a.u.) in SSM (left panel) and IFM (right panel) incubated under control conditions or with 1 or 10 μM ZP1609 respectively. After 6 min, a bolus of 140 mM KCl was added. PBFI fluorescence is shown for the excitation wavelengths 340 nm (probe is sensitive for potassium) and 380 nm (isosbestic point of the probe). Bar graphs show the maximal slope of the PBFI fluorescence/time for the excitation wavelengths 340 and 380 nm after the addition of KCl to SSM (B) or IFM (C).