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Current Topics in Neurochemistry   Volumes    Volume 3 
Abstract
Potentiation of GABAA receptor-mediated response by fragrance in aromatherapy and beverage drinking
Hitoshi Aoshima, Sheikh Julfikar Hossain
Pages: 167 - 176
Number of pages: 10
Current Topics in Neurochemistry
Volume 3 

Copyright © 2002 Research Trends. All rights reserved

ABSTRACT

Ionotropic GABA (GABAA) receptors are major inhibitory neurotransmitter receptors in the brain and are modulated by various compounds such as benzodiazepines, barbiturates, neuro-steroids, general anesthetics and ethanol. We observed the potentiation of the GABAA receptor-mediated response by fragrant compounds present in essential oils used for aromatherapy, and in tea and whiskey. Though the effects of aromatherapy are thought to be due to the stimulation of the olfactory system by the fragrances in essential oils, an additional possibility is that these fragrant compounds are absorbed into the blood and carried to the brain through the blood-brain barrier, and then potentiate the GABAA receptor-mediated response in the brain, which induces anxiolytic, anticonvulsant and sedative activity in the human mind. Fragrant compounds present in beverages may also act similarly.

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