Table 2.

Effect of carbachol on the properties of GHRH-GFP neurons

Infrathreshold properties (% over control)aMalesFemales
SlopeInterceptSlopeIntercept
Carbachol 10 μm−1.4 ± 3.4 (5)−4.7 ± 3.3 (5)−6.0 ± 11.3 (3)+5.0 ± 8.4 (3)
Carbachol 100 μm−4.3 ± 6.4 (5)−5.4 ± 8.9 (5)
TTX 500 nm−5.6 ± 3.6 (7)−4.4 ± 3.8 (7)−1.1 ± 4.7 (6)−0.7 ± 6.8 (6)
TTX plus carbachol 10 μm−4.1 ± 5.5 (6)−1.9 ± 4.4 (6)−0.9 ± 9.4 (6)−2.6 ± 12.4 (6)
TTX plus carbachol 100 μm−8.7 ± 6.2 (5)−2.2 ± 4.5 (5)
  • The number of observations is indicated in parentheses.

  • aInfrathreshold current–voltage relationships were performed as stated in Materials and Methods, except that 50-ms-duration pulses were performed.