The role of electroacupuncture in modulating gut microbiota and alleviating lumbar disc herniation in rats.

Lumbar disc herniation causes lower back pain that can interfere with daily activities and work. While acupuncture has been shown to help with this condition, researchers wanted to understand how it works, particularly its effects on gut bacteria. In this animal study, researchers created a lumbar disc herniation model in 18 female rats divided into three groups: healthy controls, untreated disc herniation, and disc herniation treated with electroacupuncture. The treatment group received electroacupuncture at the Weizhong point (BL40, located behind the knee) once daily for seven days. The researchers examined disc tissue damage, inflammation levels, and changes in gut bacteria. They found that electroacupuncture significantly reduced disc tissue damage and inflammation while helping maintain the structural balance of the disc. Importantly, the study revealed that rats with disc herniation had notably reduced diversity in their gut bacteria. Electroacupuncture treatment partially restored this bacterial diversity, specifically increasing beneficial bacteria and decreasing harmful ones. Several bacterial groups that were elevated in the herniation group returned to more normal levels after treatment, while other beneficial bacteria that had decreased were restored. This research suggests that electroacupuncture's benefits for lumbar disc herniation may work partly through rebalancing gut bacteria, adding to our understanding of how acupuncture creates therapeutic effects. If you're considering acupuncture for disc herniation, seek care from a licensed acupuncturist with experience treating musculoskeletal conditions.

This animal study investigated electroacupuncture's mechanism in treating lumbar disc herniation, focusing on gut microbiota modulation. Eighteen female SD rats were randomized into control, LDH model, and EA treatment groups (n=6 per group). The LDH model was established via autologous nucleus pulposus transplantation. EA was administered at bilateral BL40 for seven consecutive days (2mA, 2/15Hz, 30 min/session). Results demonstrated significant improvement in disc pathology, reduced inflammatory markers, and maintained extracellular matrix balance in EA-treated rats. 16S rDNA sequencing revealed substantially reduced OTU/ASV abundance in LDH rats, which EA partially reversed. At the genus level, EA downregulated pathogenic bacteria (Flavonifractor, Christensenella, Lachnospiraceae_UCG-010, Fournierella, Prevotellace_Ga6A1_group, Eubacterium, Holdemania) elevated in LDH, while upregulating beneficial bacteria (RF39_genus, Coriobacteria_genus) depleted by LDH. Clinical takeaway: EA at BL40 may exert therapeutic effects on LDH through gut microbiota modulation, suggesting a gut-disc axis warrants consideration in treatment protocols.