TABLE 1

Relationship between effects of ethanol on GABAA receptors and their degrees of receptor activation




EC50

Hill Coefficient

Activationa

30 mM Ethanol

100 mM Ethanol
μM %
Granule cells, 7 DIV 12.2 ± 0.16b 1.52 ± 0.28 0.4 -13.5 ± 18.1
Granule cells, 11 to 14 DIV 3.10 ± 0.39b 1.25 ± 0.11 5.1 -26.9 ± 20.7c
α6β2δ 0.24 ± 0.11 0.98 ± 0.11 55 10.0 ± 10.3 -20.0 ± 15.7c
α6β3δ 0.41 ± 0.19 0.86 ± 0.05 43 3.42 ± 6.25 -17.6 ± 7.00c
δ4β2δ
0.67 ± 0.22
1.02 ± 0.10
31
-15.0 ± 18.9
-26.0 ± 21.3c
  • a Percentages of receptor activation by 300 nM GABA as calculated by the equation under Data Analysis using the estimated EC50 values and Hill coefficients

  • b These two values for EC50 values are significantly different (p < 0.05)

  • c The percentage of inhibition was significant at p < 0.05 compared with the control