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The study aimed to assess the effects of Sphenopalatine ganglion (SPG) acupuncture on nasal ventilation function and autonomic nervous system in health volunteers. 39 healthy subjects were randomly assigned to either active SPG acupuncture group (AA group) or sham-SPG acupuncture group (SA group). All subjects were assessed for self-reported nasal ventilation, nasal patency (nasal airway resistance (NAR) and nasal cavity volume (NCV), exhaled nasal nitric oxide (nNO), and neuropeptides (substance P(SP), vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY)) in nasal secretions at baseline, 30 minutes, 2 hours, and 24 hours after acupuncture. Significantly more subjects in AA group reported improvements in nasal ventilation at all time points after acupuncture, compared to SA group. NAR and NCV were also significantly lower in AA group than SA group. The level of nNO in AA group was significantly decreased after 24 hours compared to SA group. The level of NPY was significantly increased in AA group at 30 minutes and 2 hours compared to baseline and SA group. The levels of SP and VIP were not significantly different in the two groups. We concluded that SPG acupuncture could help to improve nasal ventilation by increasing sympathetic nerve excitability in healthy volunteers.

scientific reports

Sphenopalatine Ganglion Acupuncture Improves Nasal Ventilation and Modulates Autonomic Nervous Activity in Healthy Volunteers: A Randomized Controlled Study