Reduced oral ethanol avoidance in mice lacking transient receptor potential channel vanilloid receptor 1.

Reduced oral ethanol avoidance in mice lacking transient receptor potential channel vanilloid receptor 1.
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缺乏瞬态受体电势通道的香草素受体1的小鼠口服乙醇降低。

DOI:
10.1007/s10519-008-9232-1
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发表时间:
2009-01
期刊:
影响因子:
2.6
通讯作者:
Brasser, Susan M.
Brasser, Susan M.
中科院分区:
医学3区
文献类型:
--
作者:
Ellingson, Jarrod M.;Silbaugh, Bryant C.;Brasser, Susan M.

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乙醇是一种已知的口服三叉神经兴奋剂,最近的数据表明,这些作用部分是由瞬时受体电位通道香草酸受体1(TRPV 1)介导的。该受体在口服介导的乙醇回避中的重要性目前尚不清楚。在这里,我们比较了orosensory响应乙醇TRPV 1缺陷和野生型小鼠在一个快速访问的范例,评估orosensory的影响,通过测量立即舔小刺激体积的反应。TRPV 1 −/−和对照小鼠用六种浓度的乙醇进行测试(3、5、10、15、25、40%),辣椒素(0.003、0.01、0.03、0.1、0.3、1 mM)、蔗糖(0.003、0.01、0.03、0.1、0.3、1 M)和奎宁(0.01,0.03,0.1,0.3,1,3 mM)和心理物理浓度响应函数产生的每种基因型和刺激。TRPV 1基因敲除小鼠对乙醇的口腔回避反应降低,无论其浓度如何,对辣椒素不敏感,与野生型小鼠相比,甜味或苦味反应几乎没有差异。这些数据表明TRPV 1通道在口腔感觉介导的乙醇回避中起作用,但其他受体机制可能也有助于对酒精的厌恶性口腔反应。
Ethanol is a known oral trigeminal stimulant and recent data indicate that these effects are mediated in part by transient receptor potential channel vanilloid receptor 1 (TRPV1). The importance of this receptor in orally mediated ethanol avoidance is presently unknown. Here, we compared orosensory responding to ethanol in TRPV1-deficient and wild type mice in a brief-access paradigm that assesses orosensory influences by measuring immediate licking responses to small stimulus volumes. TRPV1−/− and control mice were tested with six concentrations of ethanol (3, 5, 10, 15, 25, 40%), capsaicin (0.003, 0.01, 0.03, 0.1, 0.3, 1 mM), sucrose (0.003, 0.01, 0.03, 0.1, 0.3, 1 M), and quinine (0.01, 0.03, 0.1, 0.3, 1, 3 mM) and psychophysical concentration-response functions were generated for each genotype and stimulus. TRPV1 knockouts displayed reduced oral avoidance responses to ethanol regardless of concentration, insensitivity to capsaicin, and little to no difference in sweet or bitter taste responding relative to wild type mice. These data indicate that the TRPV1 channel plays a role in orosensory-mediated ethanol avoidance, but that other receptor mechanisms likely also contribute to aversive oral responses to alcohol.
DOI: 10.1186/1471-2156-6-36
发表时间: 2005-06-20
期刊: BMC genetics
影响因子: 2.9
作者:
Boughter JD Jr;Raghow S;Nelson TM;Munger SD
通讯作者: Munger SD
DOI: 10.3758/bf03208702
发表时间: 1988-08-01
期刊: PERCEPTION & PSYCHOPHYSICS
影响因子: --
作者:
GREEN, BG
通讯作者: GREEN, BG
DOI: 10.1016/s0741-8329(01)00178-1
发表时间: 2002-01-01
期刊: ALCOHOL
影响因子: 2.3
作者:
Danilova, V;Hellekant, G
通讯作者: Hellekant, G
DOI: 10.1016/j.physbeh.2005.06.010
发表时间: 2005-08-07
影响因子: 2.9
作者:
Dotson, CD;Spector, AC
通讯作者: Spector, AC
DOI: 10.1093/chemse/bjh051
发表时间: 2004-07-01
期刊: CHEMICAL SENSES
影响因子: 3.5
作者:
Dotson, CD;Spector, AC
通讯作者: Spector, AC