Hydrogen Saline Protected Hearing from Noise in Guinea Pigs
Saturated hydrogen saline protects against noise–induced hearing loss
Research hubs: Brain & Nervous System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (guinea pig)
- Authors
- Lu Yan, Yu Ning, Li Xing–qi, Sun Xue–jun, Wang Qiu–ju, Yang Shi–ming, Zhai Suo–qiang
- Journal
- Journal of Otology
- Year
- 2011
- Study Type
- Guinea Pig
- Participants
- 15
- Delivery
- Saline (Dissolved)
- Dose
- 1 ml/100 g intraperitoneally at 1 hour before noise exposure
- H₂ concentration
- saturated
- Duration
- 8 days
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 1 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Injecting guinea pigs with saturated hydrogen saline before exposing them to loud noise helped protect their hearing.
Key Finding
Guinea pigs treated with hydrogen saline before noise exposure had better hearing thresholds and more than twice as many surviving inner ear hair cells compared to untreated animals.
Summary
Researchers tested whether hydrogen-enriched saline could protect guinea pigs' hearing from loud noise damage. They exposed 15 guinea pigs to very loud impulse noise and gave one group hydrogen saline injections before exposure, while other groups received either normal saline or no treatment. The hydrogen-treated animals showed better hearing function and significantly more surviving hair cells in the inner ear compared to untreated animals.
Practical Takeaway
This animal study suggests hydrogen saline may help protect hearing from acoustic trauma, but it is a small guinea pig study and does not yet indicate whether this would work in humans or through other delivery methods like drinking hydrogen water. Much more research, including human trials, would be needed before any health recommendations could be made.
Abstract (excerpt)
Objective: To study effects of saturated hydrogen saline in preventing noise–induced hearing loss. Methods: Fifteen guinea pigs were randomly divided into 3 groups (5 each), group one was for control, group two was treated with normal saline and group three was treated with saturated hydrogen…