Hydrogen Gas Fails to Protect Skin Grafts in Rats
Preconditioning with one-time hydrogen gas does not attenuate skin flap ischemia-reperfusion injury in rat models
Research hubs: Skin & Dermatology 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
- Yan Hao, Xinhang Dong, Hao Liu, You-Bin Wang
- Journal
- Journal of Plastic, Reconstructive & Aesthetic Surgery
- Year
- 2019
- PMID
- 31350216
- Study Type
- Rat
- Participants
- 45
- Delivery
- Gas
- Dose
- 1 hour hydrogen inhalation before 3 hours of ischemia-reperfusion
- Duration
- 3 days
- Outcome
- Neutral
- Peer Reviewed
- Yes
- Cited by
- 8 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Breathing in hydrogen gas before experiencing reduced blood flow and reoxygenation did not prevent tissue damage in rats.
Key Finding
A single one-hour hydrogen gas inhalation session before surgery did not reduce skin tissue damage from loss and restoration of blood flow in rats, with no significant differences in tissue survival rates or blood flow between hydrogen-treated and untreated groups.
Summary
Researchers tested whether breathing hydrogen gas before a surgical procedure could protect skin tissue from damage caused by temporarily cutting off blood supply and then restoring it. In rats, a single one-hour hydrogen breathing session before the procedure did not reduce tissue damage compared to rats that did not receive hydrogen, based on measurements of tissue survival, blood flow, and cellular damage markers.
Practical Takeaway
This rat study suggests that a single, brief hydrogen gas treatment may not be sufficient to protect tissue from ischemia-reperfusion injury, though the findings do not rule out benefits from different dosing schedules, longer treatment periods, or hydrogen delivered at different times. The results are limited to animal models and do not directly apply to human health.
Abstract (excerpt)
Background: Hydrogen gas exists in the atmosphere and was previously considered an inert gas. It has been reported to have protective effects on tissue ischemia-reperfusion (IR) injuries in animal models. The protective mechanism of hydrogen molecules is based on selectively reducing highly strong…