TABLE 2

Efficacy of TPA023 at human recombinant GABAA receptors containing different α subunits stably expressed in mouse fibroblast L(tk-) cells



Human Recombinant GABAA Receptors Containing β3, γ2 plus

α1
α2
α3
α5
Maximum % modulationa 1 ± 4 (5) 12 ± 5 (5) 33 ± 3 (5) 6 ± 2 (6)
Efficacy relative to CDP
0.00 ± 0.03
0.11 ± 0.03
0.21 ± 0.03
0.05 ± 0.02
  • CDP, chlordiazepoxide.

  • a Mean ± S.E.M. of modulation observed in each individual cell (figures in parentheses = n)