The effect of serotonin and serotonin receptor antagonists on motion sickness in Suncus murinus
The effect of serotonin and serotonin receptor antagonists on motion sickness in Suncus murinus
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DOI:
10.1016/s0091-3057(02)00955-3
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发表时间:
2002-11-01
影响因子:
3.6
通讯作者:
Naylor, RJ
中科院分区:
文献类型:
--
作者:
Javid, FA;Naylor, RJ
In the present study, we investigated the effect of 5-hydroxytrytamine (5-HT) and 5-HT receptor agonists and antagonists on motion. p sickness in Suncus murinus, and the possibility that the emetic stimulus of 5-HT can alter the sensitivity of the animals to the different emetic stimulus of motion sickness, 5-HT (1.0, 2.0, 4.0 and 8.0 mg/kg ip) induced emesis and that was antagonised by methysergide (1.0 mg/kg ip), the 5-HT4 receptor antagonist sulphamate[1-[2-[(methylsulphonyl)amino]ethyl]-4-piperidinyl]methyl-5-fluoro-2-methoxy-1H-indole-3-carboxylate (GR125487D-, 1.0 mg/kg ip) and granisetron (0.5 mg/kg ip), Pretreatment with 5-HT caused a dose-related attenuation of the emetic response induced by a subsequent motion stimulus, which was not significantly modified by methysergide, granisetron or GR125487D pretreatment, (+)-1-(2,5-Dimethoxy-4-iodophenyl)-2-amino-propane (DOI: 0.5 and 1.0 mg/kg ip), 8-hydroxy-2(di-n-propylamino)tetralin (8-OH-DPAT; 0.1 mg/kg ip) but not methysergide, GR125487D or granisetron, attenuated motion-induced emesis, and that was not affected by pretreatment with ketanserin (2.0 mg/kg, ip) or N-{2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl}-N-(2. pridinyl)cyclohexanecarboxamide trihydrocholoride (WAY-100635: 1.0 mg/kg ip), respectively. Indeed, ketanserin alone (0.1, 0.3, 1.0 and 2.0 mg/kg ip) attenuated motion sickness, These data indicate that 5-HT1 2, 5-HT3 and 5-HT4 receptors are involved in the induction of 5-HT-induced emesis. However, agonist action at the 5-HT1A7 and 5-HT2 receptors, and antagonist action at the 5-HT2A receptors can attenuate motion sickness in S. murinus, (C) 2002 Elsevier Science Inc. All rights reserved.