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Trends in Comparative Biochemistry & Physiology   Volumes    Volume 5 
Salty and sour transductions in mouse: quasi-natural approach using non-dissociated taste cells of fungiform papilla
Takenori Miyamoto, Rie Fujiyama, Yukio Okada, Toshihide Sato
Pages: 113 - 123
Number of pages: 11
Trends in Comparative Biochemistry & Physiology
Volume 5 

Copyright © 1998 Research Trends. All rights reserved

The amiloride-sensitive and -insensitive components of salt- and acid-induced responses in mouse non-dissociated taste cells were examined using the whole-cell clamp technique and localized taste stimulation method. Both amiloride-sensitive and -insensitive components were involved in salt-induced depolarizing responses of two mouse strains (C57BL/6 and BALB/c). The amiloride-insensitive salt response consisted of multiple components, including Na+ influx and inhibition of K+ channels. All acid-induced responses in taste cells examined were insensitive to amiloride, but were markedly suppressed by the Cl- channel blocker, NPPB. These results suggest that multiple, different transduction mechanisms are involved in and contribute to salty and sour transductions.
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