ORC ID , Jian-Chun Yu2, Lan Zhao3, Jie Zhao2, Zhen Li4, Yan-Rong Suo5, Jing-Xian Han4">
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RESEARCH ARTICLE
Year : 2018  |  Volume : 13  |  Issue : 8  |  Page : 1390-1395

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


1 First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture & Moxibustion Science, Tianjin, China
2 First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
3 Tianjin Key Laboratory of Acupuncture & Moxibustion Science; Institute of Acupuncture and Moxibustion Research, Tianjin, China
4 First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Institute of Acupuncture and Moxibustion Research, Tianjin, China
5 Tianjin University of Traditional Chinese Medicine, Tianjin, China

Correspondence Address:
Bo-Hong Kan
First Teaching Hospital of Tianjin University of Traditional Chinese Medicine; Tianjin Key Laboratory of Acupuncture & Moxibustion Science, Tianjin
China
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Source of Support: 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, Conflict of Interest: None


DOI: 10.4103/1673-5374.235292

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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.


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