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Central nervous activity of elenoside
E Navarro1, S J Alonso, J Trujillo
1Department of Pharmacology, Faculty of Medicine, University of La Laguna, 38071 La Laguna, Apdo. 55, La Cuesta, Tenerife, Canary Islands, Spain. enavarro@ull.es
Summary
Elenoside, a lignan from Justicia hyssopifolia, exhibits central sedative effects. This compound may be beneficial for treating anxiety conditions due to its impact on locomotor and muscular activity.
Area of Science:
- Pharmacology
- Neuroscience
- Natural Products Chemistry
Background:
- Elenoside is a cytotoxic arylnaphthalene lignan (NSC 644013-W/1) isolated from Justicia hyssopifolia.
- This study investigates the neuropharmacological profile of elenoside, a beta-D-glucoside.
Purpose of the Study:
- To evaluate the central sedative effects of elenoside.
- To assess its potential application in anxiety conditions.
Main Methods:
- Elenoside was administered to rats at doses of 25 and 50 mg/kg.
- Neuropharmacological activities were assessed using the Varimex test, traction test, and open-field test.
- Effects were compared with chlorpromazine (10 mg/kg).
Main Results:
- Elenoside significantly reduced spontaneous locomotor activity in the Varimex test.
- It decreased permanence time in the traction test, indicating muscle relaxant properties.
- In the open-field test, elenoside reduced ambulation and rearing, with a dose-dependent increase in fecal boluses.
Conclusions:
- Elenoside demonstrates central sedative effects.
- The findings suggest elenoside has potential therapeutic applications for anxiety disorders.