机构地区:[1]中国医学科学院、北京协和医学院药用植物研究所海南分所、海南省南药资源保护与开发重点实验室、国家中医药管理局沉香可持续利用重点研究室,海南海口570311 [2]中国医学科学院、北京协和医学院药用植物研究所、中草药物质基础与资源利用教育部重点实验室、濒危药材繁育国家工程实验室,北京100193 [3]岭南现代农业科学与技术广东省实验室茂名分中心,广东茂名525099
出 处:《中国中药杂志》2023年第4期1023-1031,共9页China Journal of Chinese Materia Medica
基 金:海南省重点研发计划项目(ZDYF2022SHFZ030);国家自然科学基金青年基金项目(82204657);国家重点研发计划项目(2018YFC1706400);海南省科技厅海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(2019RC345);中国医学科学院医学与健康科技创新工程(重大协同创新)项目(2021-I2M-1-032)。
摘 要:采用间氯苯哌嗪(m-chloropheniperazine,MCPP)和慢性不可预知性温和刺激(chronic unpredictable mild stimulation,CUMS)分别制造小鼠焦虑模型和抑郁模型,通过观察旷场活动实验(OFT)、明暗箱穿梭实验(LDE)、悬尾实验(TST)、游泳实验(FST)等行为学变化,考察沉香挥发油(agarwood essential oil,AEO)、沉香香粉(agarwood fragrant powder,AFP)、沉香线香(agarwood line incense,ALI)熏香吸入抗焦虑和抗抑郁作用;采用ELISA法测定小鼠海马组织中五羟色胺(5-hydroxytryptamine,5-HT)、谷氨酸(glutamic acid,Glu)、伽马氨基丁酸(γ-aminobutyric acid A receptor,GABAA)神经递质水平,同时采用蛋白印迹法(Western blot)观察对谷氨酸能系统代谢和转运相关蛋白谷氨酸受体1(glutamate receptor 1,GluR1)及囊泡谷氨酸转运蛋白1(vesicular glutamate transporter type 1,VGluT1)蛋白表达的影响,探究沉香熏香吸入抗焦虑和抗抑郁的作用机制。行为学数据显示,与焦虑模型组比较,AEO、AFP、ALI可显著减少动物运动总路程(P<0.05),降低运动速度(P<0.05),延长静止时间(P<0.05),降低焦虑模型动物在暗箱中活动路程和速度(P<0.05);与抑郁模型组比较,AEO、AFP、ALI可增加模型动物活动总路程和平均速度(P<0.05),减少静止时间(P<0.05),减少强迫游泳和悬尾不动时间(P<0.05);递质调控方面,AEO、AFP、ALI均可降低焦虑模型动物的Glu水平(P<0.05),增加GABAA、5-HT递质水平(P<0.05);AEO、AFP、ALI均可提高抑郁模型动物5-HT的水平(P<0.05),降低GABAA、Glu的水平(P<0.05);同时AEO、AFP、ALI均能提高焦虑模型和抑郁模型动物海马体中GluR1、VGluT1蛋白表达(P<0.05)。结果说明,AEO、AFP、ALI熏香均有显著的抗焦虑、抗抑郁作用,其作用机制可能与调控神经递质分泌及受体及转运体蛋白的表达有关。This study used m-chloropheniperazine(MCPP) and chronic unforeseeable mild stress(CUMS) to induce the rat models of anxiety and depression, respectively. The behaviors of rats were observed by the open field test(OFT), light-dark exploration test(LDE), tail suspension test(TST), and forced swimming test(FST), and the antidepressant and anxiolytic effects of agarwood essential oil(AEO), agarwood fragrant powder(AFP), and agarwood line incense(ALI) were explored. The enzyme-linked immunosorbent assay(ELISA) was used to determine the levels of 5-hydroxytryptamine(5-HT), glutamic acid(Glu), and γ-aminobutyric acid(GABAA) in the hippocampal area. The Western blot assay was used to determine the protein expression levels of glutamate receptor 1(GluR1) and vesicular glutamate transporter type 1(VGluT1), exploring the anxiolytic and antidepressant mechanism of agarwood inhalation. The results showed that compared with the anxiety model group, the AEO, AFP, and ALI groups decreased the total distance(P<0.05), decreased the velocity of movements(P<0.05), prolonged the immobile time(P<0.05), and reduced the distance and velocity of the rat model of anxiety in the dark box(P<0.05). Compared with the depression model group, the AEO, AFP, and ALI groups increased the total distance and average velocity(P<0.05), reduced the immobile time(P<0.05), and reduced the forced swimming and tail suspension time(P<0.05). In terms of transmitter regulation, the AEO, AFP, and ALI groups decreased the level of Glu in the rat model of anxiety(P<0.05) and increased the levels of GABAAand 5-HT(P<0.05), while the AEO, AFP, and ALI groups all increased the level of 5-HT in the rat model of depression(P<0.05) and decreased the levels of GABAAand Glu(P<0.05). At the same time, the AEO, AFP, and ALI groups all increased the protein expression levels of GluR1 and VGluT1 in the hippocampus of the rat models of anxiety and depression(P<0.05). In conclusion, AEO, AFP, and ALI exert anxiolytic and antidepressant effects, and the mechanism might be rela
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