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Humming greatly increases nasal nitric oxide
Eddie Weitzberg1, Jon O N Lundberg
1Department of Anesthesiology and Intensive Care, Karolinska Hospital, Stockholm, Sweden. eddie.weitzberg@ks.se
Summary
Humming significantly boosts nitric oxide (NO) levels in the nose by enhancing sinus ventilation. This suggests humming could be a noninvasive method to assess sinus health and ostial patency.
Area of Science:
- Respiratory physiology
- Otorhinolaryngology
- Medical instrumentation
Background:
- Paranasal sinuses are significant nitric oxide (NO) producers.
- Sinus ventilation is crucial for maintaining NO levels.
- Obstruction of sinus ostia is implicated in sinusitis pathogenesis.
Purpose of the Study:
- To investigate the effect of humming-induced oscillating airflow on nasal NO levels.
- To explore humming as a potential noninvasive method for assessing sinus function.
Main Methods:
- Nasal NO levels were measured using chemiluminescence during humming and quiet exhalations.
- A two-compartment model simulated airflow dynamics between the nose and sinuses.
- Ten healthy subjects participated in the study.
Main Results:
- Nasal NO levels increased 15-fold during humming compared to quiet exhalation.
- Oscillating airflow dramatically enhanced gas exchange between nasal and sinus cavities.
- Humming demonstrated a significant impact on NO production and airflow dynamics.
Conclusions:
- Humming enhances sinus ventilation and increases nasal NO production.
- Nasal NO measurement during humming may serve as a noninvasive test for sinus NO production and ostial patency.
- Further research into the therapeutic potential of humming for sinus health is warranted.