Hydrogen Therapy Protects Blood Vessels in Sleep Apnea Patients
Hydrogen rescues vascular endothelial cells in obstructive sleep apnea-hypopnea syndrome by modulating nitric oxide
Research hubs: Cardiovascular System · Respiratory System
- Authors
- Qi Chen, Dandan Jiang, Jie He, Mili Sun
- Journal
- Journal of Thoracic Disease
- Year
- 2025
- PMID
- 41376930
- Study Type
- Rat
- Delivery
- Gas
- Dose
- In vitro: 0.6 mM H2-rich medium for 24 hours; In vivo: 2% H2 inhalation for 1 hour daily for 4 weeks
- H₂ concentration
- 0.6 mM, 2% H2 gas
- Duration
- 4 weeks
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 6 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Hydrogen inhalation protected blood vessels from sleep apnea–related damage by reducing oxidative stress and restoring nitric oxide signaling.
Key Finding
Molecular hydrogen treatment protected blood vessel linings in rats with simulated sleep apnea by reducing oxidative stress and restoring nitric oxide production, which improved blood vessel function.
Summary
Obstructive sleep apnea causes repeated drops in blood oxygen that damage blood vessel linings through oxidative stress (cellular damage from unstable molecules). This study tested whether molecular hydrogen could protect these blood vessels in rats with sleep apnea-like conditions. Researchers found that hydrogen treatment reduced oxidative stress, restored the production of nitric oxide (a molecule that helps blood vessels relax), and reduced inflammation and cell death in blood vessel tissue.
Practical Takeaway
This rat study suggests hydrogen may help protect blood vessels damaged by sleep apnea, but human studies are needed to determine if these benefits apply to people. The findings are preliminary and should not be considered a treatment recommendation for sleep apnea, which requires medical management.
Abstract (excerpt)
Background: Obstructive sleep apnea-hypopnea syndrome (OSAHS) is a highly prevalent disorder characterized by chronic intermittent hypoxia (IH), which induces severe vascular endothelial dysfunction via oxidative stress and disruption of nitric oxide (NO) homeostasis, thereby elevating…