阿尔茨海默病患者脑神经递质变化及分布特点研究
2017-06-08孙正海朱家进孟静文左川韩云峰李
孙正海 朱家进 孟静文 左川 韩云峰 李平 沙巨光 范勤毅


【摘要】 目的:研究阿尔茨海默病患者(Alzheimers Disease,AD)脑内神经递质变化特点,并探讨其与痴呆严重程度的关系。方法:选取齐齐哈尔和哈尔滨城区经简易智能精神状态量表(MMSE)评定,并临床确诊的AD患者30例为病例组,一般情况相匹配的非AD健康者30例为对照组,应用脑电超慢涨落分析技术(encephal of lutuograph technology,ET),对病例组和对照组脑内神经水平进行检测,分析AD患者脑神经递质变化的特点及其与MMSE评分之间的相关性。结果:病例组脑内γ-氨基丁酸(GABA)、谷氨酸(Glu)、5-羟色胺(5-HT)、乙酰胆碱(Ach)四种神经递质较对照组降低,比较差异有统计学意义(P<0.01);相关性分析表明:GABA、5-HT和Ach的神经递质水平与MMSE评分呈正相关,GABA与MMSE评分的相关系数为r=0.422,P<0.05;5-HT与MMSE评分的相关系数为r=0.417,P<0.05;Ach与MMSE评分的相关系数为r=0.450,P<0.05。结论:AD患者脑内神经递质存在GABA、Glu、5-HT、Ach降低的变化,GABA、5-HT和Ach的神经递质水平与痴呆严重程度呈正相关。
【关键词】 阿尔茨海默病; 脑神经递质; 脑电超慢涨落分析技术; 简易智能精神状态量表
Study About Brain Neurotransmitter Changes in Patients with Alzheimers Disease/SUN Zheng-hai,ZHU Jia-jin,MENG Jing-wen,et al.//Medical Innovation of China,2017,14(14):009-012
【Abstract】 Objective:To explore the correlation between the brain neurotransmitter changes and the severity of Alzheimers Disease(AD).Method:30 elderly cases who clinically diagnosed as AD were selected as the case group,while 30 healthy elderly cases were selected as the control group.Both two groups were tested the levels of their brain neurotransmitter by Mini Mental-State Examination(MMSE),analyzed the correlation between the brain neurotransmitter changes and the severity of Alzheimers Disease.Result:The neurotransmitters level of GABA,Glu,5-HT and Ach in the case group were lower than those of the control group,the differences were statistically significant(P<0.01).The neurotransmitters levels of GABA,5-HT and Ach were positively correlated with MMSE scores[r(GABA)=0.422,r(5-HT)=0.417,r(Ach)=0.450,P<0.05].Conclusion:The neurotransmitter level of GABA,5-HT and the Ach is dcrease in patients with Alzheimers Disease.The levels of GABA,5-HT and Ach are positively correlated with the severity of Alzheimers Disease.
【Key words】 Alzheimers Disease; Brain neurotransmitter; Encephal of lutuograph technology; MMSE
First-authors address:Mental Health College in Qiqihar Medical University,Qiqihar 161006,China
doi:10.3969/j.issn.1674-4985.2017.14.003
阿尔茨海默病(Alzheimers Disease,AD)是一组病因未明的原发性退行性脑变性疾病,现有研究显示,≥65岁人群中,我国北方地区AD患病率为4.2%,南方地区为2.8%[1-2]。随着人口老龄化程度加剧,AD的患病人数越来越多,阿尔茨海默病已经成为危害老年人健康的主要疾病之一,将给社会经济发展和老年卫生保健带来沉重的负担,日益受到世界各国的高度重视[3-4],很多国家已经开始投入较大的研究力量和资源对其进行研究,其中神经生化方面的研究尤为多见[5],有研究表明该病的发生与人体某些神经递质的改变或失衡密切相关[6-7]。最常用的脑内神经递质检测方法是通过检测血液或者脑脊液中递质或其代谢产物的水平来间接反应脑内神经递质的变化[8]。……
