Hydrogen Saline Protects Lungs from Injury in Mice Study
Hydrogen-rich saline ameliorated LPS-induced acute lung injury via autophagy inhibition through the ROS/AMPK/mTOR pathway in mice
Research hubs: Respiratory System
This research was done in animals. Results in animals often don't carry over to people.

- Evidence type
- Animal study (mouse)
- Authors
- Yong Wang, Jinghua Zhang, Jinsong Bo, Xuefen Wang, Jingnan Zhu
- Journal
- Experimental Biology and Medicine
- Year
- 2019
- PMID
- 31042074
- Study Type
- Mouse
- Delivery
- Saline (Dissolved)
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 24 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
A study suggests that a solution containing high levels of hydrogen gas can help prevent and treat acute lung injury by controlling a cell's waste removal process.
Key Finding
Hydrogen-rich saline reduced lung injury in mice by suppressing overactive autophagy (a cellular cleanup process) through a specific molecular pathway.
Summary
Researchers gave mice with acute lung injury (a serious condition where the lungs become inflamed and damaged) either hydrogen-rich saline or a control treatment. The hydrogen-rich saline reduced lung damage by affecting a cellular cleanup process called autophagy, which was working overtime and making the injury worse. The effect worked through a specific chain of molecular signals in cells.
Practical Takeaway
This is early evidence from mouse studies suggesting hydrogen-rich saline might help with acute lung injury, but it's far too preliminary to draw conclusions for humans. The study was conducted only in mice, and clinical trials in people would be needed before any therapeutic use could be considered. The findings are interesting for researchers but don't yet support any health claims for consumers.
Abstract (excerpt)
Over-activation of autophagy due to increased levels of reactive oxygen species is a key mechanism of lipopolysaccharide-induced acute lung injury. Hydrogen-rich saline, an antioxidant, has been proved to be an effective agent for the prevention of acute lung injury, but the underlying mechanism…