Abstract
Acupuncture is an important therapy method in traditional Chinese medicine for treating intervertebral disc degeneration (IVDD), offering a wide range of applications. It is based on the theory of Chinese veterinary medicine and combines the stage of the disease course and individual differences for syndrome differentiation and treatment. However, there are few studies on the acupuncture treatment of cervical disc degeneration (CDD) in rabbits. Treatment based on syndrome differentiation is the basic principle of Chinese veterinary treatment. The selection of acupoints for external treatment should be based on individual etiology and pathogenesis. Nevertheless, most current studies do not follow this guideline. In this study, we established the CDD model and explored the mechanism of acupuncture treatment in alleviating CDD in rabbits by selecting a group of main acupoints including cervical Jiaji, Fengchi, Tianzhu, Naohu, Dazhui, and Houxi acupoints, combined with Western medicine's understanding of the pathogenesis of cervical spondylosis, from the anti-inflammatory, analgesic, and tissue-repairing perspectives. Magnetic resonance imaging (MRI) confirmed the successful establishment of the rabbit CDD model. Acupuncture stimulation reduced the increase of average and maximum neck temperature due to CDD in rabbits. The acupuncture treatment relieved the spinal disc damage in the neck of the rabbit, which also decreased the expression level of pro-apoptotic factor Bax and increased the expression level of anti-apoptotic factor Bcl-2. In addition, it can alleviate the abnormal apoptosis of rabbit intervertebral disc, decrease the expression level of inflammatory factors such as TNF-α, IL-1β, IL-2, and PGE2α, and alleviate the intense inflammation and pain response caused by CDD in rabbits. In conclusion, Acupuncture treatment can slow down the CDD of rabbits by regulating the inflammatory response and abnormal apoptosis of intervertebral disc tissue.
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