Hydrogen Gas Prevents Kidney Damage from Blood Flow Loss in Rats
- Authors
- Ekrem AKDENİZ, Yakup BOSTANCI, Ender ÖZDEN, Bilge Can MEYDAN, Ali Faik YILMAZ, Şaban SARIKAYA, Yarkın Kamil YAKUPOĞLU
- Journal
- Turkiye Klinikleri Journal of Medical Sciences
- Year
- 2013
- DOI
- 10.5336/medsci.2012-32626
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Turkey
- Health Condition
- Kidney Ischemia/Reperfusion Injury
- Body System
- Urinary
TL;DR
Breathing in hydrogen gas helped protect rat kidneys from damage caused by temporarily stopping and then restarting blood flow.
Key Finding
Inhaled hydrogen gas significantly reduced kidney damage from ischemia/reperfusion injury in rats, with histological injury scores markedly lower in the hydrogen-treated group compared to untreated controls.
Summary
Researchers tested whether inhaled hydrogen gas could protect rat kidneys from damage caused by temporarily cutting off blood supply and then restoring it (a condition called ischemia/reperfusion injury). Rats that received hydrogen gas before, during, and after the blood supply was cut showed significantly less kidney damage compared to rats that did not receive hydrogen gas. The protective effect was observed both shortly after the injury and two weeks later.
Practical Takeaway
This is an early-stage animal study showing hydrogen gas may help protect kidneys from blood-supply-related injury. However, this was conducted only in rats, so it's unclear whether these results would apply to humans. Much more research, including human trials, would be needed before hydrogen gas could be considered a treatment for kidney injury in clinical settings.
Abstract
Objective: We aimed to show the short- and long-term protective effects of inhaled hydrogen gas on renal ischemia/reperfusion (I/R) injury in a rat model. Material and Methods: Thirty Sprague-Dawley rats were randomly divided into 3 major experimental groups (Group 1, sham; Group 2, I/R; Group 3, hydrogen-I/R). Subsequently, Group 2 and 3 were divided into subgroups as early (E) and late (L) periods. Group 2 and 3 underwent 45 minutes of renal ischemia.Group 3 was administered 182.5 min (175-185 min) 2% hydrogen gas (2 L/min) in total (1 h before ischemia, by ischemia period and 1 h after reperfusion). Left nephrectomy was performed 6 hours after reperfusion in the early groups and at the 14th day of reperfusion in the late groups. We performed histopathological examination. Results: Kidneys from control rats (Group 2) exhibit significant injury characterized by marked histological changes characteristic of I/R injury in the outer medulla and cortex regions. Histological alterations were markedly reduced and all histological scores for renal injury were significantly lower in specimens from the hydrogen-I/R group compared to the control group (p=0.001). Conclusion: In this study, we demonstrated that hydrogen gas significantly attenuated renal I/R injury in early and late periods, and may have therapeutic potential against various clinical conditions involving I/R injury.