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δ9-四氢大麻酚在不同环境温度下对大鼠体温及脑胺浓度的影响。

The effect of delta9-tetrahydrocannabinol on body temperature and brain amine concentrations in the rat at differnt ambient temperatures.

作者信息

Fennessy M R, Taylor D A

出版信息

Br J Pharmacol. 1977 May;60(1):65-71. doi: 10.1111/j.1476-5381.1977.tb16748.x.

Abstract
  1. Rats were injected intravenously with 2 mg/kg (-)-trans-delta9-tetrahydrocannabinol (delta9-THC) at ambient temperatures of 4 degrees, 21 degrees, 31 degrees and 37 degrees C. 2. The general behavior exhibited by rats treated with delta9-THC was similar at all four ambient temperatures. 3. Body temperatures were recorded continuously before and after drug administration. At 4 degrees and 21 degrees C, delta9-THC caused hypothermia whereas no change in body temperature occurred at 31 degrees and 37 degrees C. 4. The concentrations in the whole brain of noradrenaline (NA), dopamine, 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) were determined spectrophotofluorimetrically 1 h after drug administration. At 4 degrees C delta9-THC caused an increase of 5-HT, at 21 degrees C an increase of 5-HIAA, at 21 degrees C an increase of 5-HIAA AND A decrease of NA, and at 37 degrees C an increase of 5-HT and 5-HIAA. 5. At all ambient temperatures, delta9-THC increased the brain levels of 5-HT and/or 5-HIAA. A correlation between the delta9-THC-induced hypothermic response and the possible alteration of brain 5-HT metabolism cannot be excluded.
摘要
  1. 在4℃、21℃、31℃和37℃的环境温度下,给大鼠静脉注射2毫克/千克的(-)-反式-δ9-四氢大麻酚(δ9-THC)。2. 在所有四个环境温度下,用δ9-THC处理的大鼠表现出的一般行为相似。3. 在给药前后连续记录体温。在4℃和21℃时,δ9-THC导致体温过低,而在31℃和37℃时体温没有变化。4. 在给药1小时后,用分光光度荧光法测定全脑中去甲肾上腺素(NA)、多巴胺、5-羟色胺(5-HT)和5-羟吲哚乙酸(5-HIAA)的浓度。在4℃时,δ9-THC导致5-HT增加,在21℃时5-HIAA增加,在21℃时5-HIAA增加且NA减少,在37℃时5-HT和5-HIAA增加。5. 在所有环境温度下,δ9-THC均增加了大脑中5-HT和/或5-HIAA的水平。不能排除δ9-THC诱导的体温过低反应与大脑5-HT代谢可能改变之间的相关性。

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Brain amines and temperature regulation.脑胺与体温调节。
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