TABLE 1

Modulation of the GABA-induced chloride currents by 1 μM concentration of the indicated compounds for receptors composed of α1β2γ1 subunits (second column) and α1β2 subunits (third column) Each value represents the mean ± S.E. of at least four oocytes from at least two oocyte batches.

Compound IGABA (EC5-10) Potentiation
α1β2γ1 α1β2
%
Triazolam 82 ± 10* -21 ± 4*
Clotiazepam 53 ± 8* -14 ± 2*
Midazolam 43 ± 4* -20 ± 5*
CGS 20625 42 ± 4* 20 ± 5*
CGS 9896 24 ± 3* 16 ± 7
Diazepam 20 ± 3* 2 ± 2
Zolpidem 13 ± 3* -5 ± 3
Bretazenil 10 ± 1* -1 ± 5
DMCM 8 ± 4 4 ± 2
Cl 218,872 6 ± 5 -10 ± 1*
Clobazam 5 ± 2 7 ± 3
Flumazenil 4 ± 3 13 ± 5
Ru 33203 2 ± 2 -5 ± 5
PK 9084 -3 ± 3 -6 ± 4
Flurazepam -5 ± 3 26 ± 4*
l-655708 -7 ± 2 -8 ± 5
Ru 31719 -7 ± 3 -10 ± 5
Ru 33356 -7 ± 3 -2 ± 3
Ru 32698 -8 ± 2 -5 ± 2
Flunitrazepam -11 ± 2* -9 ± 5
PK 8165 -16 ± 2* -14 ± 2*
  • * Difference from zero was calculated by ANOVA.