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美沙酮维持治疗者中枢神经递质功能的变化
引用本文:龚斌,朱千. 美沙酮维持治疗者中枢神经递质功能的变化[J]. 中国行为医学科学, 2014, 0(2): 140-143
作者姓名:龚斌  朱千
作者单位:[1]重庆重庆市渝北区第二人民医院美沙酮门诊,401120 [2]西南大学心理学部,401120
基金项目:重庆市卫生局社会心理干预基地项目(SJ20130110)
摘    要:目的 检测美沙酮维持治疗(methadone maintenance treatment,MMT)患者脑神经递质功能及脑功能指数,了解其大脑功能的变化特点.方法 应用脑涨落图仪(EFG)采集58例MMT患者及44例健康成年人的脑电功率信号,分析MMT患者脑神经递质变化的特点及各神经递质与脑功能状态的相关性.结果 (1)与对照组相比,MMT组的神经递质实测功率普遍降低,其中γ-氨基丁酸(GABA)[(17.73±3.54)μV2 vs.(121.48±44.64) μV2,P<0.01)、谷氨酸(Glu)[(42.18±12.84) μV2 vs.(105.31±34.95) μV2,P<0.05]均差异有统计学意义.(2) MMT组的GABA[(17.10±51.72)μV2 vs.(78.67±10.93) μV2,P<0.001]、Glu[(30.48±21.61) μV2 vs.(69.23±42.26) μV2,P<0.001]相对功率降低,差异有统计学意义;而五羟色胺(5-HT)[(297.18±31.54)μV2 vs.(280.18±31.54) μV2,P<0.01]、乙酰胆碱(Ach)[(235.08±37.72) μV2 vs.(217.23±40.60) μV2,P<0.05]、去甲肾上腺素(NE)[(164.11±33.05) μV2 vs (146.39±30.80) μV2,P<0.01]、多巴胺(DA)[(98.87±22.48) μV2 vs.(91.49±21.04) μV2,P<0.05]则升高,均差异有统计学意义;(3) MMT组的全脑总功率低于对照组[(1012.01±195.09) μV2 vs.(1775.94±458.99) μV2,P<0.01],差异有统计学意义;兴奋抑制指数(2.19±1.46 vs.0.99±0.47,P<0.001)及相对熵[(89.45±9.71)% vs.(75.48±9.97)%,P<0.01]高于对照组,均差异有统计学意义;(4)MMT组各种神经递质功率与全脑总功率均具有正相关,均差异有统计学意义(P<0.001),Glu与兴奋抑制指数(r=0.264,P<0.05)、NE与血管舒缩指数则有正相关,均差异有统计学意义(r=0.269,P<0.05),5-HT(r=-0.276,P<0.05)和DA(r=-0.375,P<0.01)分别与相对熵存在负相关,均差异有统计学意义.结论 MMT患者的大脑功能显著降低,神经递质的兴奋性和抑制性明显失衡.

关 键 词:美沙酮维持治疗  脑涨落图  神经递质  脑电功率

Functional change of neurotransmitters in central nervous system for outpatients with methadone maintenance treatment
Gong Bin,Zhu Qian. Functional change of neurotransmitters in central nervous system for outpatients with methadone maintenance treatment[J]. Chinese Journal of Behavioral Medical Science, 2014, 0(2): 140-143
Authors:Gong Bin  Zhu Qian
Affiliation:1.No.2 People's Hospital, MMT Outpatient, Chongqing 401120, China;)
Abstract:Objective To detect neurotransmitters function in the brain and the brain functional index of outpatients with methadone maintenance treatment,and understand the change features of brain function.Methods Collect brain electrical power signals were collected from 58 outpatients with methadone maintenance treatment (MMT) and 44 healthy adults,and the correlations between the power of the neurotransmitters and the brain functional status were analyzed.Results (1) In MMT group,all neurotransmitters were lower generally than those in the control group,and the differences of GABA ((17.73±3.54) μV2 vs.(121.48±44.64) iμV2,P<0.01),Glu ((42.18±12.84) μV2 vs.(105.31 ± 34.95) μV2,P<0.05) were significant.(2) The relative powers of GABA ((17.10±51.72) μV2 vs.(78.67± 10.93) μV2,P<0.001) and Glu((30.48±21.61) μV2 vs.(69.23±42.26) μV2,P<0.001) reduced significantly,while 5-HT((297.18±31.54) μ V2 vs.(280.18±31.54) μV2,P<0.01),ACh ((235.08±37.72) μV2 vs.(217.23±40.60)μV2,P<0.05),NE((164.11±33.05) μV2 vs (146.39±30.80) μV2,P <0.01),DA((98.87±22.48) μV2 vs.(91.49±21.04)μV2,P<0.05) rised significantly in MMT group.(3)The global power was lower((1012.01± 195.09)μV2 Vs.(1775.94±458.99) μV2,P<0.01),and the excitement-inhibition index(2.19± 1.46 vs.0.99±0.47,P<0.001) and the relative entropy((89.45±9.71) % vs.(75.48±9.97) %,P <0.01)were higher than those in the controls.(4) In MMT group,there were positive correlation between all neurotransmitters and global power,as well as that between Glu and excitement-inhibition index (r=0.264,P<0.05),NE and Vasomotor index(r=0.269,P<0.05),but negative correlation between relative entropy and 5-HT(r=-0.276,P<0.05) as well as DA(r=-0.375,P<0.01)significantly.Conclusion The brain function of outpatients with MMT are lower than the normal significantly,and there are clearly imbalance between the excitement and inhibition among the brain neurotransmitters.
Keywords:Methadone maintenance treatment  Encephalofluctuograph (EFG)  Neurotransmitters  Brain electrical power
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