Responses of cultured rat trigeminal ganglion neurons to bitter tastants.
Responses of cultured rat trigeminal ganglion neurons to bitter tastants.
复制标题
培养的大鼠三叉神经节神经元对苦味促味剂的反应。
DOI:
10.1093/chemse/23.2.125
复制
发表时间:
1998
期刊:
影响因子:
3.5
通讯作者:
Simon,SA
中科院分区:
文献类型:
--
作者:
Liu,L;Simon,SA
The initial steps in taste and olfaction result from the activation by chemical stimuli of taste receptor cells (TRCs) and olfactory receptor neurons (ORN5). In parallel with these two pathways is the chemosensitive trigeminal pathway whose neurons terminate in the oral and nasal cavities and which are activated by many of the same chemical stimuli that activate TRCs and ORNs. In a recent single unit study we investigated the responses of rat chorda tympani and glossopharnygeal neurons to a variety of bitter-tasting alkaloids, including nicotine, yohimbine, quinine, strychnine and caffeine, as well as capsaicin, the pungent ingredient in hot pepper. Here we apply many of these same compounds to cultured rat trigeminal ganglion (TG) neurons and measure changes in intracellular calcium [Ca2+]ito determine whether TG neurons will respond to these same compounds. Of the 89 neurons tested, 34% responded to 1 mM nicotine, 7% to 1 mM caffeine, 5% to 1 mM denatonium benzoate, 22% to 1 mM quinine hydrochloride, 18% to 1 mM strychnine and 55% to 1 μM capsaicin. These data suggest that neurons from the TG respond to the same bitter-tasting chemical stimuli as do TRCs and are likely to contribute information sent to the higher CNS regarding the perception of bitter/irritating chemical stimuli.
登录
查看更多内容
DOI:
--
发表时间:
1977
期刊:
Acta Physiologica Scandinavica
影响因子:
--
作者:
Goran Hellekant
通讯作者:
Goran Hellekant
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
T. Getchell;Richard L. Doty;Enrique Cometto;W. Cain
通讯作者:
W. Cain
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
M. Jarvik;Kamyar M. Assil
通讯作者:
Kamyar M. Assil
DOI:
--
发表时间:
1968
期刊:
影响因子:
--
作者:
Y. Kawamura;J. Okamoto;M. Funakoshi
通讯作者:
M. Funakoshi
影响因子:
2.5
作者:
A. Szallasi;P. Blumberg
通讯作者:
P. Blumberg