Fig. 4.
SF-induced increase in mHb ChNs tonic firing is not mediated by SK2 or SK3 channels. A Examples and summaries showing that bath application of SK2/3 channel enhancer NS 309 (20 μM) strongly suppressed tonic firing in mHb ChNs in both control-sleep and SF groups, an effect reversed by application of mixed SK2 selective antagonist UCL 1684 (UCL; 1 μM) and SK3 selective antagonist TRAM 39 (TRAM; 1 μM) (n = 5/3, 7/5). Scale bars = 50 pA, 500 ms; 20 pA, 500 ms. B Examples and summaries showing that bath application of UCL (1 μM) and TRAM (1 μM) together did not alter tonic firing rate in mHb ChNs in control-sleep or SF group (n = 7/5, 11/6). Scale bars = 50 pA, 500 ms. C Examples and summaries showing that bath application of UCL (1 μM) or TRAM (1 μM) separately did not alter tonic firing rate in mHb ChNs in control-sleep group (n = 17/5, 25/5, 11/5) or SF group (n = 27/5, 8/3, 8/5). Values are presented in box-and-whiskers plots in the style of Tukey. ** p < 0.01, *** p < 0.001, ## p < 0.01, ns = not significant