Hydrogen Therapy Shows Promise for Early Heart Failure Prevention
- Authors
- Anna Vyacheslavovna Deryugina, Darya Andreevna Danilova, Anastasia Vladimirovna Polozova
- Journal
- Antioxidants
- Year
- 2025
- DOI
- 10.3390/antiox14121418
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Russia
- Health Condition
- Chronic Heart Failure
- Body System
- Cardiovascular
TL;DR
Hydrogen inhalation improved heart microcirculation and reduced oxidative stress, helping protect heart tissue in a model of chronic heart failure.
Key Finding
Inhaling molecular hydrogen improved blood flow in tiny heart blood vessels and reduced oxidative stress and swelling in heart tissue in rats with early-stage heart failure, with multiple daily treatments producing stronger effects than a single treatment.
Summary
Researchers tested whether inhaling molecular hydrogen (H2, a colorless gas) could help protect rat hearts from damage during early heart failure. They exposed rats to a chemical that damages the heart, then had some rats breathe hydrogen gas for 40 minutes either once or daily for 5 days. The hydrogen improved blood flow in tiny blood vessels, reduced harmful chemical damage (oxidative stress) in heart tissue, and prevented swelling in the heart muscle—with better results from multiple treatments than a single one.
Practical Takeaway
This early-stage animal study suggests hydrogen gas inhalation may help protect heart tissue during heart failure development, but these results are from rats only and much more research—including human studies—would be needed before any conclusions about human health benefits. The study does not tell us whether these effects would occur in people or what dose and duration would be appropriate.
Abstract
Oxidative stress is a key factor in the development of chronic heart failure (CHF). Molecular hydrogen (H2) exhibits antioxidant properties, yet the mechanisms by which it alleviates hemodynamic disturbances and ischemic myocardial injury in CHF are not fully understood. This study examined the effects of a single (40-min) and multiple (40-min daily for 5 days) inhalations of H2 in a rat model of CHF induced by catecholamine administration. Microcirculatory function was evaluated using laser Doppler flowmetry and laser fluorescence spectroscopy. Lipid peroxidation levels in plasma and myocardium were measured, and histological analysis of myocardial tissue was performed. The findings demonstrated that H2 inhalation improved microvascular perfusion (p < 0.05) by activating local regulation and restoring central control mechanisms. This contrasts with the decreased perfusion and disrupted adaptive regulation observed in CHF. Notably, oxidative stress and metabolic abnormalities induced in the model were significantly mitigated by H2, with the most substantial effects observed after multiple administrations (p < 0.05). Histological assessments revealed that repeated H2 inhalation reduces myocardial edema and preserves tissue morphology during cardiac remodeling. In conclusion, hydrogen therapy shows potential for delaying CHF progression at early stages by normalizing microcirculation and tissue metabolism.