Rong Pei-Jing, Zhao Jing-Jun, Yu Ling-Ling, Li Liang, Ben Hui, Li Shao-Yuan, Zhu Bing
Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, 16 Nanxiaojie of Dongzhimen, Beijing 100700, China.
Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, 16 Nanxiaojie of Dongzhimen, Beijing 100700, China ; Wuhan Integrated TCM and Western Medicine Hospital, 215 Zhongshan Road, Qiaokou District, Wuhan, Hubei 43002, China.
Evid Based Complement Alternat Med. 2015;2015:516851. doi: 10.1155/2015/516851. Epub 2015 Jun 16.
To observe the effect of electroacupuncture (EA) on nucleus ventralis posterior lateralis (VPL) thalami activated by visceral noxious stimulation and to explore the impact of EA on the mechanism of acupoint sensitization under a pathological state of the viscera, EA was applied at bilateral "Zusanli-Shangjuxu" acupoints. The discharge of VPL neurons was response to EA increased after colorectal distension (CRD). The stimulation at "Zusanli-Shangjuxu" acupoints enhanced discharge activity of VPL neurons under CRD-induced visceral pain. The frequency of neuronal discharge was associated with the pressure gradient of CRD which showed that visceral noxious stimulation may intensify the body's functional response to stimulation at acupoints.
观察电针(EA)对内脏伤害性刺激激活的丘脑腹后外侧核(VPL)的影响,探索EA在脏器病理状态下对穴位敏化机制的影响,将电针双侧“足三里-上巨虚”穴位。结直肠扩张(CRD)后,VPL神经元对EA的放电反应增加。在CRD诱导的内脏痛下,刺激“足三里-上巨虚”穴位可增强VPL神经元的放电活动。神经元放电频率与CRD的压力梯度相关,这表明内脏伤害性刺激可能会增强机体对穴位刺激的功能反应。