Electroacupuncture combined with neural stem cell transplantation promotes neurogenesis and functional recovery and is associated with tsRNA expression changes in a rat model of ischemic stroke.

Researchers in China investigated whether combining electroacupuncture with stem cell therapy could improve recovery after stroke in laboratory rats. Stroke causes brain damage that can lead to paralysis and difficulty with movement. This study tested whether using both treatments together might work better than either treatment alone. The research team used electroacupuncture at two specific points: Quchi (LI11) on the arm and Zusanli (ST36) on the leg. They combined this with transplantation of neural stem cells, which are special cells that can develop into new brain cells. Rats with induced strokes were divided into groups receiving electroacupuncture alone, stem cell therapy alone, both treatments together, or no treatment. The results showed that rats receiving the combination therapy had significantly smaller areas of brain damage and better recovery of movement compared to those receiving only one treatment. The combined approach helped rats perform better on movement tests and showed evidence of increased brain cell regeneration in damaged areas. The researchers also discovered changes in specific molecules called tsRNAs and increased levels of proteins BDNF and Wnt1, which are known to support brain cell growth and repair. While these findings are promising, this was an animal study and more research is needed to determine if similar benefits occur in human stroke patients. If you're considering acupuncture for stroke recovery, consult with a licensed acupuncturist experienced in neurological conditions and coordinate care with your medical team.

This rat MCAO model study (n=specific group sizes not stated) demonstrates that electroacupuncture at LI11 and ST36 combined with neural stem cell transplantation significantly enhances post-stroke recovery compared to monotherapy. The EA+NSCT group showed significantly reduced infarct volume (P<0.01), lower modified Neurological Severity Scores (P<0.05), and superior motor performance (P<0.001) versus single-intervention groups. Immunofluorescence analysis revealed enhanced neurogenesis in the peri-infarct cortex, with increased Brdu/NeuN and Brdu/GFAP expression indicating both neuronal differentiation and glial proliferation. High-throughput sequencing identified candidate tsRNAs (tRF-1:31-Gly-GCC-2-M2 and tRF-1:31-Gly-CCC-1-M2) potentially mediating therapeutic effects. BDNF and Wnt1 protein expression were markedly upregulated in all treatment groups, with highest levels in the combination group (P<0.01), suggesting activation of neurogenic signaling pathways. Clinical implications: Combined EA and stem cell approaches may offer synergistic neuroprotective effects in stroke rehabilitation, warranting translation to clinical trials examining optimal timing and treatment protocols.