Abstract
Ethanolic extracts from dried leaves of sage (Salvia officinalis) showed inhibition of [35S]tertiary-butylbicyclophosphorothionate ([35S]TBPS) binding to rat brain membranes in vitro. This ligand is considered to bind to the chloride channel of the GABA/benzodiazepine receptor complex in brain tissue. Substances having inhibitory activity were purified and their chemical structure identified as the diterpenes carnosic acid and carnosol (IC50 values of 33 +/- 3 microM and 57 +/- 4 microM, respectively). The two compounds did not affect binding of the ligands [3H]muscimol and [3H]diazepam to the GABA/benzodiazepine complex in vitro. Saturation experiments of [35S]TBPS binding indicated that carnosic acid decreases the binding affinity.
Original language | English |
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Pages (from-to) | 224-226 |
Journal | Neuroscience Letters |
Volume | 135 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1992 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Department of Dermatology and Venereology (Lund) (013006000), Organic chemistry (S/LTH) (011001240)
Subject classification (UKÄ)
- Neurosciences
Free keywords
- γ-Aminobutyric acid
- Benzodiazepine receptor
- [35S]TBPS binding
- Salvia officinalis
- Diterpenoid
- Carnosol
- Carnosic acid