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RESEARCH ARTICLE
Year : 2015  |  Volume : 10  |  Issue : 3  |  Page : 394-403

Electroacupuncture in the repair of spinal cord injury: inhibiting the Notch signaling pathway and promoting neural stem cell proliferation


Second Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China

Correspondence Address:
Hua-lin Yu
Second Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province
China
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Source of Support: This work was supported by the Major Special Project of Scientific Research Fund of Yunnan Provincial Education Department of China, No. zd2012001., Conflict of Interest: None


DOI: 10.4103/1673-5374.153687

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Electroacupuncture for the treatment of spinal cord injury has a good clinical curative effect, but the underlying mechanism is unclear. In our experiments, the spinal cord of adult Sprague-Dawley rats was clamped for 60 seconds. Dazhui (GV14) and Mingmen (GV4) acupoints of rats were subjected to electroacupuncture. Enzyme-linked immunosorbent assay revealed that the expression of serum inflammatory factors was apparently downregulated in rat models of spinal cord injury after electroacupuncture. Hematoxylin-eosin staining and immunohistochemistry results demonstrated that electroacupuncture contributed to the proliferation of neural stem cells in rat injured spinal cord, and suppressed their differentiation into astrocytes. Real-time quantitative PCR and western blot assays showed that electroacupuncture inhibited activation of the Notch signaling pathway induced by spinal cord injury. These findings indicate that electroacupuncture repaired the injured spinal cord by suppressing the Notch signaling pathway and promoting the proliferation of endogenous neural stem cells.


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