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Receptor and transduction mechanisms of bitter substances Makoto KASHIWAYANAGI 1 , Kenzo KURIHARA 2 1Graduate School of Pharmaceutical Sciences, Hokkaido University 2Graduate School of Environmental Sciences, Aomori University Keyword: 苦味 , トランスダクション , 苦味阻害剤 pp.649-657
Published Date 1999/10/10
DOI https://doi.org/10.11477/mf.1431901082
  • Abstract
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Changes in ionic concentration in a solution covering the tongue surface do not affect the taste nerve responses. Elimination of Ca2+ from a solution surrounding taste cell body abolishes the taste nerve responses to bitter substances, suggesting that Ca2+ influx into a taste cell is needed for release of a transmitter from a taste cell. Several transduction mechanisms on bitter reception have been proposed ; bitter responses occur via inhibition ofK+ channel, production of IP3, activation of gustducin and binding of bitter substances to lipid layers of taste receptor membranes.


Copyright © 1999, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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