The antinociceptive effect of FR140423 in mice: involvement of spinal α2-adrenoceptors
The antinociceptive effect of FR140423 in mice: involvement of spinal α2-adrenoceptors
复制标题
FR140423 对小鼠的镇痛作用:脊髓 α2-肾上腺素受体的参与
DOI:
10.1016/s0014-2999(00)00402-7
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发表时间:
2000
影响因子:
5
通讯作者:
T. Goto
中科院分区:
文献类型:
--
作者:
T. Ochi;T. Goto
We investigated the role of the spinal noradrenergic system in the antinociceptive effect of FR140423, 3-(difluoromethyl)-1-(4-methoxyphenyl)-5-[4-(methylsulfinyl)phenyl]pyrazole, by using the tail-pinch test in mice and various adrenoceptor antagonists. The antinociceptive effect of FR140423 injected i.t. was completely abolished by co-administration of the non-selective α-adrenoceptor antagonist phentolamine and the α2-adrenoceptor antagonist yohimbine but not by the α1-adrenoceptor antagonist prazosin or the β-adrenoceptor antagonist propranolol. Oral administration of FR140423, at doses of 5–80 mg/kg, produced a dose-dependent antinociceptive effect with an ED50value of 19 mg/kg. This antinociception was abolished by i.t., but not i.c.v., injection of phentolamine and yohimbine (10 μg/mouse). These results suggest that α2-adrenoceptors in the spinal cord are involved in the antinociceptive effect of FR140423 against mechanical noxious stimulus as they are in the effect of morphine and clonidine.
DOI:
--
发表时间:
1995
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
T. L. Yaksh;J. W. Pogrel;Youn-Woo Lee;S. Chaplan
通讯作者:
T. L. Yaksh;J. W. Pogrel;Youn-Woo Lee;S. Chaplan
DOI:
--
发表时间:
1987-07
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
S. Wigdor;George L. Wilcox
通讯作者:
S. Wigdor;George L. Wilcox
DOI:
--
发表时间:
1996
期刊:
The Journal of pharmacology and experimental therapeutics.
影响因子:
--
作者:
Stevens,CW
通讯作者:
Stevens,CW