In vitro study on the interaction of Valeriana officinalis L. extracts and their amino acids on GABAA receptor in rat brain

Arzneimittelforschung. 1995 Jul;45(7):753-5.


This work studied in vitro the interaction of aqueous and hydroalcoholic extracts of Valeriana officinalis L. and compounds that are present in the extracts (amino acids and valerenic acid) with the GABAA (gamma-aminobutyric acid) receptor, using the [3H] muscimol binding technique to crude synaptic membranes from rat brain cortices. Both extracts displaced [3H]muscimol bound and this effect is probably due only to their amino acid content, specially GABA. This fact explains the in vitro effect of valerian extracts on GABAA receptor but not their sedative effect.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids / pharmacology*
  • Animals
  • Binding, Competitive / drug effects
  • Brain Chemistry / drug effects*
  • GABA-A Receptor Antagonists*
  • In Vitro Techniques
  • Muscimol / metabolism
  • Plant Extracts / chemistry
  • Plant Extracts / pharmacology*
  • Rats
  • Synaptic Membranes / drug effects
  • Synaptic Membranes / metabolism


  • Amino Acids
  • GABA-A Receptor Antagonists
  • Plant Extracts
  • Muscimol