The effect of electro-acupuncture on pain following brachial plexus injury is unknown, although the procedure has traditionally been used to treat pain.
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After electroacupuncture therapy, chronic neuropathic pain in the rats' upper limbs was significantly attenuated. Immunofuorescence staining showed that the expression of β-endorphins in the arcuate nucleus was significantly increased after therapy.
Thus, Shenyu Zhang and co-workers from Huashan Hospital, Fudan University, China, indicate that electroacupuncture can attenuate neuropathic pain after brachial plexus injury through upregulating β-endorphin expression.
Source-Eurekalert