Hydrogen Gas Protects Kidneys from Damage in Animal Study
Protective effects of hydrogen on renal ischemia/reperfusion injury in rats
This research was done in animals. Results in animals often don't carry over to people.

- Evidence type
- Animal study (rat)
- Authors
- K. Zeng, H. Huang, X.Q. Jiang, X.J. Chen, W. Huang
- Journal
- Journal of Sichuan University
- Year
- 2014
- Study Type
- Rat
- Participants
- 18
- Delivery
- Gas
- Dose
- 2.5% hydrogen inhalation initiated 10 min before reperfusion and continued for 130 min till the end of 120-min reperfusion
- H₂ concentration
- 2.5% H2 gas
- Duration
- 1 day or less
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- China
TL;DR
Breathing in hydrogen gas can reduce kidney damage caused by temporary loss and restoration of blood flow in rats.
Key Finding
Inhaling 2.5% hydrogen gas reduced kidney damage markers and improved tissue health in rats experiencing ischemia/reperfusion injury (temporary loss and restoration of blood flow).
Summary
Researchers tested whether inhaling hydrogen gas could protect rat kidneys from damage caused by temporarily cutting off blood flow and then restoring it. Rats that breathed 2.5% hydrogen gas showed less kidney damage, lower levels of harmful molecules (oxidative stress markers), and better tissue appearance compared to rats that didn't receive hydrogen treatment.
Practical Takeaway
This rat study suggests hydrogen inhalation may help protect kidneys from ischemia/reperfusion injury, but these results are preliminary and from animal models only. Human clinical trials would be needed to determine if hydrogen therapy could be effective for kidney protection in people.
Abstract (excerpt)
To investigate the protective effects of hydrogen on renal ischemic/reperfusion injury and its mechanism in rats. Eighteen adult male Sprague-Dawley rats were used and allocated into sham-operated group (Sham group), ischemic reperfusion group (I/R group) and hydrogen treated group (H2 group)…