中国神经再生研究(英文版) ›› 2018, Vol. 13 ›› Issue (8): 1390-1395.doi: 10.4103/1673-5374.235292

• 原著:退行性病与再生 • 上一篇    下一篇

针刺改善阿尔茨海默病小鼠海马树突结构和空间学习记忆能力

  

  • 收稿日期:2018-05-28 出版日期:2018-08-15 发布日期:2018-08-15
  • 基金资助:

    中国国家自然科学基金项目(81603686, 81603684),天津市高校科技基金发展项目(20120211),天津市自然科学基金项目(重点项目)(15JCZDJC36700, 16JCZDJC3750),天津市自然科学项目(17JCYBJC26200

     

Acupuncture improves dendritic structure and spatial learning and memory ability of Alzheimer’s disease mice

Bo-Hong Kan1, 2, Jian-Chun Yu1, Lan Zhao2, 3, Jie Zhao1, Zhen Li1, 3, Yan-Rong Suo4, Jing-Xian Han1, 3   

  1. 1 First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
    2 Tianjin Key Laboratory of Acupuncture & Moxibustion Science, Tianjin, China
    3 Institute of Acupuncture and Moxibustion Research, Tianjin, China
    4 Tianjin University of Traditional Chinese Medicine, Tianjin, China
  • Received:2018-05-28 Online:2018-08-15 Published:2018-08-15
  • Contact: Bo-Hong Kan, Ph.D.,15522473756@163.com.
  • Supported by:

    This study was supported by the National Natural Science Foundation of China, No. 81603686, 81603684; the High School Science and Technology Fund Planning Project of Tianjin of China, No. 20120211; the Natural Science Foundation of Tianjin of China (Key Program),No. 15JCZDJC36700, 16JCZDJC37500; the Natural Science Foundation of Tianjin of China, No. 17JCYBJC26200.

摘要:

 

针刺虽可以改善阿尔茨海默病的认知状态,但其机制少有报道。有研究显示阿尔茨海默病时大脑中树突萎缩和突触丧失与认知损伤呈正相关,因此作者推测针刺改善认知功能的作用可能与减轻大脑树突损伤有关。实验设计以针刺理想的阿尔茨海默病模型SAMP8小鼠气海、中脘、膻中、双侧足三里及双侧血海穴位,1次/d,连续14d,治疗6d后休息1d,并以未针刺的SAMP8小鼠以及正常老化SAMR1小鼠作为对照。治疗10d后以Morris水迷宫评估空间学习记忆能力,应用定量高尔基染色方法分析海马CA1区锥体细胞树突状况。见针刺明显缩短了SAMP8小鼠的Morris水迷宫中逃避潜伏期,延长了其在目标象限的停留时间,且海马CA1区树突分支数量和总长度增加。表明针刺可以通过改善SAMP8小鼠树突结构,提高其空间学习记忆能力。

orcid:0000-0003-0153-8243(Bo-Hong Kan)

关键词: 老年痴呆, 快速老化, 针刺, 认知, 树突, 海马CA1区, Morris水迷宫, 高尔基染色, 神经再生

Abstract:

Acupuncture can improve the cognitive state of Alzheimer’s disease, but its mechanism is not clear. Dendritic atrophy and synaptic loss in Alzheimer’s disease brain are positively correlated with cognitive damage. Therefore, we speculated that the effect of acupuncture on improving cognitive function may be associated with reduced dendritic damage in the brain. Acupuncture at Qihai (CV6), Zhongwan (CV12),Danzhong (CV17), bilateral Zusanli (ST36), and bilateral Xuehai (SP10) acupoints was performed once a day (1-day rest after 6-day treatment) for 14 consecutive days. Senescence-accelerated mouse prone 8 (SAMP8) mice without acupuncture and senescence-accelerated mouse resistant 1 (SAMR1) mice were used as normal controls. After 14 days of treatment, spatial learning and memory ability of mice was assessed in each group using the Morris water maze. Dendritic changes of pyramidal cells in the hippocampal CA1 region were analyzed by quantitative Golgi staining. Our results showed that acupuncture shortened escape latency and lengthened retention time of the former platform quadrant in SAMP8 mice. Further, SAMP8 mice exhibited a significant increase in the number of apical and basal dendritic branches and total length of apical and basal dendrites after acupuncture. These results suggest that acupuncture improves spatial learning and memory ability of middle-aged SAMP8 mice by ameliorating dendritic structure.