Hydrogen Therapy Reduces Asthma Inflammation in Mice Study
Molecular hydrogen alleviates asthma through inhibiting IL-33/ILC2 axis
Research hubs: Respiratory System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (mouse)
- Authors
- Jingxi Zhang, Xiumin Feng, Yunxin Fan, Guanglin Zhu, Chong Bai
- Journal
- Inflammation Research
- Year
- 2021
- PMID
- 33852061
- Study Type
- Mouse
- Delivery
- Gas
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 15 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Breathing in a mixture of hydrogen and oxygen may help reduce asthma symptoms by decreasing inflammation.
Key Finding
Molecular hydrogen reduced asthma-related inflammation and immune cell activation in mouse models and human airway cells, while also helping restore the protective barrier of the airway lining.
Summary
Researchers tested whether molecular hydrogen (H2) could reduce asthma symptoms in mice and human airway cells exposed to allergens. They found that hydrogen treatment lowered levels of inflammatory proteins, reduced a type of immune cell that drives asthma inflammation, and helped repair damage to the airway lining. The effect appeared to work by blocking a specific inflammatory pathway called IL-33/ILC2.
Practical Takeaway
This study provides early evidence in animal and cell models that hydrogen gas may help reduce asthma inflammation through a specific immune mechanism. However, these results are from laboratory and mouse studies only—human clinical trials would be needed to determine if hydrogen could be a useful asthma treatment. The findings are preliminary and should not be considered a basis for self-treatment.
Abstract (excerpt)
Background: Asthma is one of the most common noninfectious chronic diseases characterized by type II inflammation. This study aimed to investigate the effects of molecular hydrogen on the pathogenesis of asthma. Methods: OVA sensitized asthma mouse model and house dust mite treated 16HBE cellular…