FIGURE 9.
Effects of oxotremorine-M on glutamatergic sEPSCs of lamina II neurons from M2-KO mice. A, summary data show three types of neurons in which 3 μm oxotremorine-M had distinct effects on the frequency of sEPSCs. B, summary data from 24 neurons showing that himbacine had no effect on oxotremorine-M-induced increases in the sEPSC frequency. C, summary data from another 11 neurons showing that himbacine converted the initial inhibitory effect of oxotremorine-M on the sEPSC frequency to stimulatory. D, summary data from 6 neurons showing that oxotremorine-M similarly inhibited the frequency of sEPSCs and mEPSCs (with TTX). E, summary data from 13 neurons showing that oxotremorine-M increased the frequency of sEPSCs and mEPSCs (with TTX) in a similar manner. Data are presented as means ± S.E. *, p < 0.05 compared with the control. #, p < 0.05 compared with the initial effect of oxotremorine-M.