Hydrogen Gas Protects Hearts from Heart Attack Damage in Rats
Hydrogen Attenuates Myocardial Injury in Rats by Regulating Oxidative Stress and NLRP3 Inflammasome Mediated Pyroptosis
Research hubs: Cardiovascular System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (rat)
- Authors
- Hongxiao Yang, Shuang Liu, Huijun Du, Zi Hong, Yajing Lv, Chaoqun Nie, Wei Yang, Yunan Gao
- Journal
- International Journal of Medical Sciences
- Year
- 2021
- PMID
- 34400901
- Study Type
- Rat
- Participants
- 64
- Delivery
- Gas
- Dose
- 2% H2 inhalation for 24 hours after ligation
- H₂ concentration
- 2% H2 gas
- Duration
- 1 day or less
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 16 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Breathing in hydrogen gas helped improve heart function and reduce heart damage in rats after a heart attack by lowering inflammation and oxidative stress.
Key Finding
Hydrogen gas inhalation reduced heart damage and improved heart function in rats with acute heart attacks by decreasing oxidative stress (cellular damage from unstable molecules) and reducing inflammation in heart cells.
Summary
This rat study tested whether inhaling hydrogen gas could reduce heart damage from a heart attack. Researchers blocked blood flow to the heart in rats and then gave some of them hydrogen gas to breathe for 24 hours. Rats that received hydrogen showed better heart function, smaller areas of dead heart tissue, less inflammation, and lower levels of damage markers in their blood compared to rats that didn't receive hydrogen.
Practical Takeaway
While this rat study suggests hydrogen gas may protect heart tissue during a heart attack, it is early-stage research that has not been tested in humans. The findings are promising but cannot yet be applied to human heart attack treatment without further clinical trials.
Abstract (excerpt)
Purpose: Hydrogen (H2) is an antioxidant with anti-inflammatory and apoptosis functions.This study aimed to estimate the effects of H2 on acute myocardial infarction (AMI) in rats and its association with the inhibition of oxidative stress and cardiomyocyte pyroptosis. Methods: Sixty-four rats were…