Hydrogen Gas Reduces Heart Problems in Pulmonary Hypertension Rats
- Authors
- Marina Artemieva, Larisa Kozaeva, Tatyana Kuropatkina, Khaidar Gufranov, Dmitrii Atiakshin, Natalia Medvedeva, Oleg Medvedev
- Journal
- Biomedicines
- Year
- 2026
- DOI
- 10.3390/biomedicines14030494
- Study Type
- Rat
- Outcome
- Positive
- Peer Reviewed
- Yes
- Country
- Russia
- Health Condition
- Pulmonary Hypertension
- Body System
- Cardiovascular
TL;DR
Hydrogen inhalation reduced heart rate response to hypotension and decreased vascular reactivity in a rat model of pulmonary hypertension.
Key Finding
Rats with pulmonary hypertension that breathed hydrogen gas showed a 34% smaller heart rate response to blood pressure-lowering medication and 30% less blood vessel tightening to a stimulating drug compared to rats breathing regular air.
Summary
This study tested whether breathing hydrogen gas could help rats with pulmonary hypertension (high blood pressure in the lungs). Researchers gave some rats hydrogen gas to breathe for 2 hours twice daily over 21 days, while others breathed regular air. They then measured how the rats' hearts and blood vessels responded to certain drugs. Rats that breathed hydrogen showed smaller heart rate increases when their blood pressure dropped, and their blood vessels were less reactive to a drug that normally tightens them. The researchers also found signs of reduced inflammation in the hydrogen-treated rats.
Practical Takeaway
This early animal study suggests hydrogen gas inhalation may help modulate how the body controls blood pressure in pulmonary hypertension, but these results are from rats only and cannot yet be applied to humans. Much more research, including human trials, would be needed to determine if hydrogen therapy could be beneficial for people with this condition.
Abstract (excerpt)
Background/Objectives: Molecular hydrogen (H2), a natural antioxidant, can selectively reduce hydroxyl radicals and peroxynitrite without affecting signaling molecules such as H2O2 and NO. In addition, H2 can inhibit the synthesis of inflammatory cytokines. Human and animal studies have shown that…