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Anxiolytic-like Effect of Inhaled Cinnamon Essential Oil and Its Main Component Cinnamaldehyde in Animal Models
Molecules ( IF 4.2 ) Pub Date : 2022-11-18 , DOI: 10.3390/molecules27227997
Ly Thi Huong Nguyen 1 , Nhi Phuc Khanh Nguyen 1 , Khoa Nguyen Tran 1 , Heung-Mook Shin 1 , In-Jun Yang 1
Affiliation  

Aromatherapy is one of the most common safer alternative treatments for psychiatric disorders with fewer side effects than conventional drugs. Here, we investigated the effects of cinnamon essential oil (CIEO) inhalation on mouse behaviors by performing different behavioral tests. CIEO inhalation showed anxiolytic effects in the elevated plus maze test, as inferred from increased time spent in open arms and decreased time spent in closed arms. Moreover, the CIEO treatment enhanced social behavior by increasing the total contact number, time spent in the center, distance traveled in the center, and total distance in the social interaction test. However, CIEO inhalation did not have any effect on performance in the open field test, tail suspension test, forced swimming test, and Y maze tests. The microarray analysis indicated that the CIEO treatment downregulated 17 genes and upregulated 15 genes in the hippocampus. Among them, Dcc, Egr2, and Fos are the most crucial genes that are involved in anxiety-related biological processes and pathways, including the regulation of neuronal death and neuroinflammation. Gas chromatography/mass spectrometry analysis revealed that cinnamaldehyde is the main component of CIEO. Cinnamaldehyde recovered MK-801-induced anxiety-related changes in the electroencephalogram power spectrum in zebrafish. Taken together, our findings suggest that CIEO and its main component cinnamaldehyde have an anxiolytic effect through the regulation of the expression of genes related to neuroinflammatory response and neuronal death.

中文翻译:

动物模型吸入肉桂精油及其主要成分肉桂醛的抗焦虑样作用

芳香疗法是治疗精神疾病最常见且更安全的替代疗法之一,其副作用比传统药物少。在这里,我们通过执行不同的行为测试来调查吸入肉桂精油 (CIEO) 对小鼠行为的影响。CIEO 吸入在高架十字迷宫试验中显示出抗焦虑作用,这是从增加张开双臂的时间和减少闭合双臂的时间推断出来的。此外,CIEO 治疗通过增加总接触次数、在中心停留的时间、在中心旅行的距离以及社交互动测试中的总距离来增强社交行为。然而,吸入CIEO对开阔场地试验、悬尾试验、强迫游泳试验和Y迷宫试验的性能没有任何影响。微阵列分析表明,CIEO 处理在海马体中下调了 17 个基因并上调了 15 个基因。其中,Dcc、Egr2 和 Fos 是参与焦虑相关生物过程和通路的最关键基因,包括神经元死亡和神经炎症的调节。气相色谱/质谱分析表明,肉桂醛是 CIEO 的主要成分。肉桂醛恢复了 MK-801 诱导的斑马鱼脑电图功率谱中与焦虑相关的变化。总之,我们的研究结果表明,CIEO 及其主要成分肉桂醛通过调节与神经炎症反应和神经元死亡相关的基因表达而具有抗焦虑作用。和 Fos 是参与焦虑相关生物过程和途径的最关键基因,包括神经元死亡和神经炎症的调节。气相色谱/质谱分析表明,肉桂醛是 CIEO 的主要成分。肉桂醛恢复了 MK-801 诱导的斑马鱼脑电图功率谱中与焦虑相关的变化。总之,我们的研究结果表明,CIEO 及其主要成分肉桂醛通过调节与神经炎症反应和神经元死亡相关的基因表达而具有抗焦虑作用。和 Fos 是参与焦虑相关生物过程和途径的最关键基因,包括神经元死亡和神经炎症的调节。气相色谱/质谱分析表明,肉桂醛是 CIEO 的主要成分。肉桂醛恢复了 MK-801 诱导的斑马鱼脑电图功率谱中与焦虑相关的变化。总之,我们的研究结果表明,CIEO 及其主要成分肉桂醛通过调节与神经炎症反应和神经元死亡相关的基因表达而具有抗焦虑作用。气相色谱/质谱分析表明,肉桂醛是 CIEO 的主要成分。肉桂醛恢复了 MK-801 诱导的斑马鱼脑电图功率谱中与焦虑相关的变化。总之,我们的研究结果表明,CIEO 及其主要成分肉桂醛通过调节与神经炎症反应和神经元死亡相关的基因表达而具有抗焦虑作用。气相色谱/质谱分析表明,肉桂醛是 CIEO 的主要成分。肉桂醛恢复了 MK-801 诱导的斑马鱼脑电图功率谱中与焦虑相关的变化。总之,我们的研究结果表明,CIEO 及其主要成分肉桂醛通过调节与神经炎症反应和神经元死亡相关的基因表达而具有抗焦虑作用。
更新日期:2022-11-18
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