Enhancement of gamma-aminobutyric acid receptor binding by protopine-type alkaloids

Arzneimittelforschung. 1986 Jun;36(6):939-40.

Abstract

Protopine, cryptopine and allocryptopine were demonstrated to enhance 3H-gamma-aminobutyric acid (3H-GABA) binding to rat brain synaptic membrane receptors. The above finding might be indicative of benzodiazepine-like activity of these alkaloids.

MeSH terms

  • Alkaloids / pharmacology*
  • Animals
  • Benzophenanthridines
  • Berberine Alkaloids*
  • Diazepam / pharmacology
  • In Vitro Techniques
  • Male
  • Rats
  • Rats, Inbred Strains
  • Receptors, GABA-A / drug effects*
  • Synaptic Membranes / drug effects

Substances

  • Alkaloids
  • Benzophenanthridines
  • Berberine Alkaloids
  • Receptors, GABA-A
  • Diazepam
  • protopine