2023年第50卷第1期目录
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封面故事:帕金森病(PD) 是以运动症状为主要特征的中枢神经退行性疾病。神经调控可实现神经
环路关键靶区的精准调控,是治疗PD的非药物手段。其中重复经颅磁刺激(rTMS) 作用于运动皮
层可有效改善PD患者运动症状,然而其调控作用机制仍有待探究。李润泽等对PD患者肢体症状始
发侧对侧初级运动皮层施加10 Hz rTMS刺激,分别采集刺激前、磁刺激治疗结束后的脑电数据,对
比分析各脑区不同节律神经振荡及连接性的变化,提取与疾病病理及磁刺激作用相关联的脑电特
征。结果表明,高频rTMS刺激调节运动皮层beta、gamma节律神经振荡,抑制脑区间超连接起到改
善患者运动症状的作用。该研究为后续的病理研究、rTMS机制探索和新疗法改进提供理论基础。
(李润泽,姚尧,冯珂珂,杨硕,李佳丽,程轶峰,尹绍雅,徐桂芝. 重复经颅磁刺激改善帕金森病运动症
状的脑功能网络分析,本期第126~134 页)
Cover Story:Objective Repetitive transcranial magnetic stimulation (rTMS) has been widely used in clinics to realize the treatment of neurological and psychiatric diseases, especially in depression and pain. In recent years, many studies have applied it as an adjuvant approach to treatment of Parkinson’s disease (PD) in order to relieve the patient’s motor symptoms and improve motor function. At present, the unified Parkinson’s disease scale and motor task are used to evaluate the adjuvant treatment effect of rTMS on motor symptoms, but there are few studies exploring the regulatory mechanism of high-frequency rTMS stimulation.Methods In this study, 10 Hz rTMS over the primary motor cortex (M1) on the contralateral side of the limb symptom onset side in 16 PD patients. By comparing the changes of brain neuron activity and the interactions between brain function before and after stimulation, we investigated the regulatory effect of repeated sessions of M1 high-frequency rTMS on brain neuron activity in PD patients.Results The results showed that after 10 d of M1 stimulation, beta oscillations increased and gamma oscillation significantly decreased (P<0.05) in motor cortex, and the connectivity between the frontal and parietal cortex was reduced (P<0.05).Conclusion It shows that 10 Hz rTMS mainly changes the beta and gamma rhythm in PD patients. The changes of beta and gamma oscillations in motor cortex may be related to the improvement of motor function, and the changes in prefrontal gamma oscillations may be due to inhibits abnormal neuron firing activities and modulates the patient’s motor control function.
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综述与专论
研究报告
技术与方法
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