Hydrogen Inhalation Protects Brain from Stroke Damage in Rats
Inhalation of water electrolysis-derived hydrogen ameliorates cerebral ischemia–reperfusion injury in rats – A possible new hydrogen resource for clinical use
Research hubs: Brain & Nervous System · Cardiovascular System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (rat)
- Authors
- Jin Cui, Xiao Chen, Xiao Zhai, Dongchen Shi, Rongjia Zhang, Xin Zhi, Xiaoqun Li, Zhengrong Gu, Liehu Cao, Weizong Weng, Jun Zhang, Liping Wang, Xuejun Sun, Fang Ji, Jiong Hou, Jiacan Su
- Journal
- Neuroscience
- Year
- 2016
- PMID
- 27555551
- Study Type
- Rat
- Delivery
- Gas
- H₂ concentration
- 66.7%
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 56 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Breathing in hydrogen gas made from water electrolysis can help protect rat brains from damage caused by a stroke.
Key Finding
Hydrogen gas derived from water electrolysis reduced brain damage, cell death, and markers of oxidative stress and inflammation in rats with stroke-like injury.
Summary
Researchers tested whether hydrogen gas produced by passing electricity through water could protect rat brains from damage caused by stroke. They found that rats that breathed this high-concentration hydrogen gas (66.7% hydrogen) had less brain damage, fewer dying brain cells, and lower levels of harmful molecules and inflammation compared to control rats, with no signs of toxicity.
Practical Takeaway
This is early-stage animal research showing promise for a new way to produce hydrogen for potential medical use. However, these results are from rats only, and it remains unknown whether this approach would be safe or effective in humans. Much more research, including human trials, would be needed before any clinical application.
Abstract (excerpt)
Hydrogen is a kind of noble gas with the character to selectively neutralize reactive oxygen species. Former researches proved that low-concentration of hydrogen can be used to ameliorating cerebral ischemia/reperfusion injury. Hydrogen electrolyzed from water has a hydrogen concentration of 66.7%…