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eCAM Advance Access published online on October 5, 2006
eCAM, doi:10.1093/ecam/nel064
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© 2006 The Author(s).
Received November 7, 2005
Accepted August 22, 2006

Commentary

Traditional Phytochemistry: Identification of Drug by ‘Taste’

Kalpana Joshi 1, Alex Hankey 2 *, and Bhushan Patwardhan 1

1 Interdisciplinary School of Health Sciences, University of Pune, Pune 411007, India
2 Hethe House, Cowden, Kent TN8 7DZ, UK

* To whom correspondence should be addressed.
Alex Hankey, E-mail: Alexhank{at}dircon.co.uk


  Abstract

Ayurveda, the system of traditional medicine from India, holds that ‘Rasa’, a concept roughly corresponding to taste, is a basis for identifying pharmacological properties of plants and other materia medica used in Dravyaguna--its system of phytomedicine. This idea has recently found support in studies of ibuprofen, the pharmacological properties of which are similar to those of oleocanthal, because the two substances have very similar tastes. This paper discusses a possible scientific approach to understanding the Ayurvedic (hypo)thesis in terms of the stereochemical basis of both pharamaco-activity and taste, and the numbers of possible pharmaco-active compounds that ‘Rasa’ may be able to distinguish. We conclude that molecules binding to a specific enzyme active site should have their own ‘Rasa’, and that the number of different subjectively experienced ‘tastes’ is more than enough to distinguish between molecular shapes binding to all enzyme active sites in the body.

Keywords: ayurveda; drug discovery; ibruprofen; oleocanthal; taste.
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