Low-Frequency Magnetic Stimulation of Shenmen Acupoint Reduces Blood Oxygen Levels in Prefrontal Cortex of Healthy Subjects:A Near-Infrared Brain Functional Imaging Study

• 作者: YUAN Jie ZHENG Zhong CAO Yue CHEN Jie LI Yuan-yuan LEI Ya-ling
• 来源期刊: 中国结合医学杂志（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: Acupuncture Research
• 页码范围: 585-588
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11655-021-3291-z

摘要

Objective:To explore the effect of low-frequency magnetic stimulation at Shenmen(HT 7)acupoint on blood oxygen levels in the prefrontal cortex of healthy subjects.Methods:Functional near-infrared spectroscopy(fNIRS)technology was used to collect real-time data of oxygenated hemoglobin(oxy-Hb)in the prefrontal cortex of 16 healthy subjects at resting state and low-frequency magnetic stimulation of Shenmen.The mean and integral values of blood oxygen concentration were analyzed.Results:Compared with the resting state,the mean and integral values of blood oxygen concentration decreased during the task period,recovery period,and the whole process in the magnetic stimulation of Shenmen acupoint(P＜0.05).In particular,the difference was statistically significant in the recovery period(P＜0.01).Conclusions:The prefrontal cortex was widely activated and produced an immediate effect by reducing the local blood oxygen concentration at low-frequency magnetic stimulation of Shenmen acupoint,which verifies the sedative effect of Shenmen acupoint.