Fuentes Romulo, Petersson Per, Siesser William B, Caron Marc G, Nicolelis Miguel A L
Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA.
Science. 2009 Mar 20;323(5921):1578-82. doi: 10.1126/science.1164901.
Dopamine replacement therapy is useful for treating motor symptoms in the early phase of Parkinson's disease, but it is less effective in the long term. Electrical deep-brain stimulation is a valuable complement to pharmacological treatment but involves a highly invasive surgical procedure. We found that epidural electrical stimulation of the dorsal columns in the spinal cord restores locomotion in both acute pharmacologically induced dopamine-depleted mice and in chronic 6-hydroxydopamine-lesioned rats. The functional recovery was paralleled by a disruption of aberrant low-frequency synchronous corticostriatal oscillations, leading to the emergence of neuronal activity patterns that resemble the state normally preceding spontaneous initiation of locomotion. We propose that dorsal column stimulation might become an efficient and less invasive alternative for treatment of Parkinson's disease in the future.
多巴胺替代疗法对治疗帕金森病早期的运动症状有用,但从长期来看效果较差。脑深部电刺激是药物治疗的一种有价值的补充,但涉及高度侵入性的外科手术。我们发现,脊髓背柱的硬膜外电刺激可恢复急性药理学诱导的多巴胺耗竭小鼠和慢性6-羟基多巴胺损伤大鼠的运动能力。功能恢复与异常低频同步皮质纹状体振荡的破坏同时出现,导致出现类似于自发开始运动之前正常状态的神经元活动模式。我们提出,背柱刺激可能在未来成为治疗帕金森病的一种有效且侵入性较小的替代方法。