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Inhibition of BK channels increases the spontaneous action potential (sAP) duration in stellate cells. A and B: application of IBTX (100 nM) and TEA (1 mM) altered the AP waveform. C and D: IBTX (n = 5) and TEA (n = 10) prolonged the duration and reduced the afterhyperpolarization of spontaneous APs. E and F: IBTX did not alter the spontaneous AP frequency in stellate cells. Spontaneous APs were recorded in a cell-attached configuration. *P < 0.05; **P < 0.005; ***P < 0.0005.
