Hydrogen Gas Protects Kidneys from Medical Contrast Damage in Rats
Inhalation of Hydrogen Gas Is Beneficial for Preventing Contrast-Induced Acute Kidney Injury in Rats
- Evidence type
- Animal study (rat)
- Authors
- Koichiro Homma, Tadashi Yoshida, Maho Yamashita, Kei Hayashida, Matsuhiko Hayashi, Shingo Hori
- Journal
- Nephron Experimental Nephrology
- Year
- 2015
- DOI
- 10.1159/000369068
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Japan
- Health Condition
- Contrast-Induced Acute Kidney Injury
- Body System
- Renal
This research was done in animals. Results in animals often don't carry over to people.
TL;DR
Breathing in hydrogen gas reduced kidney damage in rats after they were given a substance that usually causes kidney injury.
Key Finding
Rats that inhaled hydrogen gas during contrast dye injection had significantly lower kidney damage markers and better kidney function than control rats, with reduced cell death and oxidative stress in kidney tissue.
Summary
This study tested whether inhaling hydrogen gas could protect rat kidneys from damage caused by contrast dye (a substance used in medical imaging). Rats that inhaled hydrogen gas during contrast dye injection showed less kidney damage, lower markers of kidney stress, and less cell death compared to rats that inhaled regular air. The researchers found that hydrogen gas appeared to work by reducing oxidative stress (harmful chemical reactions) in kidney cells.
Practical Takeaway
This is an early-stage animal study showing hydrogen gas may help protect kidneys from contrast dye injury. However, these results are from rats only and do not yet demonstrate whether this would work in humans. Much more research, including human trials, would be needed before hydrogen gas inhalation could be considered a preventive treatment for contrast-induced kidney injury in patients.
Abstract (excerpt)
Background: The present study aimed at investigating the effect of a novel antioxidant, hydrogen (H2) gas, on the severity of contrast-induced acute kidney injury (CIAKI) in a rat model. Methods: CIAKI was induced in rats by intravenous injection of a contrast medium, Ioversol, in addition…