670858.fig.004
Figure 4: Concentration-time curve of protein-unbound salicylic acid in the brain after aspirin administration 30 mg/kg. The control group (aspirin administration only): concentration of SA (●). The acupuncture group (acupuncture stimulation 15 min before aspirin administration): concentration of SA (■). The electro-acupuncture group (electro-acupuncture stimulation 15 min before aspirin administration): concentration of SA (▲). Salicylic acid (SA). Acupuncture (A); electro-acupuncture (EA).