FIGURE 5.
Ca2+-activated Cl- current is larger in male than in female mouse SCG neurons. (A) Representative recordings of isolated CaCC after a single AP (left) and after a train of 6 spikes at 40 Hz (right) in an hybrid-clamp protocol in the presence of apamin to block IK(Ca) (see section “Material and Methods”). APs were evoked with short (5 ms) intracellular current pulses (0.5–1 nA). Recordings from male (black) and female (magenta) are superimposed. (B) Average values of isolated CaCCs after a single AP (left) and after a train of 6 spikes at 40 Hz (right) in males (8 cells; black) and females (8 cells; magenta). Student’s t-test: ∗P < 0.05; ∗∗P < 0.01. (C) SCG mRNA expression levels of Ano1 (male n = 9, female n = 8), normalized to that of Hprt. Mann–Whitney test, ∗∗∗P < 0.0001.