Hydrogen inhalation ameliorates lung inflammation in mice with asthma.
Hongchang Li, Xia Qi, Hongyan Xu, Rong Zhou, Xiaochun Liu, Lei Li, Cuiping Hu, Chunli Dai · European journal of medical research · 2025
Research-use notice
Independent study record
Each H2HUBB study page organizes source-linked research details for educational use. Interpretation should remain proportional to the study design, population, controls, and limitations.
H2HUBB TAKEAWAY
In mice, hydrogen inhalation attenuated the immune response; decreased the levels of IL-4, IL-5 and IL-13; and further increased the mRNA expression levels of Treg-associated cytokines, namely, IL-10 and TGF-β1, thereby bolstering the body's inflammatory resistance mechanisms. These preclinical findings add evidence supporting molecular hydrogen's therapeutic potential within the outcomes and biological pathways measured in this model.
What the Findings Mean
H2HUBB reviewed how inhaled hydrogen gas affected the outcomes measured in mice. Hydrogen inhalation attenuated the immune response; decreased the levels of IL-4, IL-5 and IL-13; and further increased the mRNA expression levels of Treg-associated cytokines, namely, IL-10 and TGF-β1, thereby bolstering the body's inflammatory resistance mechanisms.
What the Researchers Studied
The researchers studied mice. The study used a preclinical animal experiment. The comparison condition was control condition or baseline measurements.
What Effects Did Molecular Hydrogen Have?
Source-reported hydrogen concentration: 15% source-reported H₂ gas concentration; Source-reported hydrogen exposure: 15% source-reported H₂ gas concentration; 4 L/min H₂ flow (4000 mL/min H₂); reported treatment duration: 60 min. Hydrogen inhalation attenuated the immune response; decreased the levels of IL-4, IL-5 and IL-13; and further increased the mRNA expression levels of Treg-associated cytokines, namely, IL-10 and TGF-β1, thereby bolstering the body's inflammatory resistance mechanisms. The authors concluded that these findings indicate that hydrogen inhalation effectively suppresses OVA-induced asthma, leading to a substantial improvement in associated lung inflammation, and that the inhalation of hydrogen may be a more feasible approach for future asthma treatment strategies. The histological analysis of lung tissues revealed that OVA induced prominent inflammatory cell infiltration and cell proliferation in the alveolar wall, which were markedly ameliorated in the hydrogen-treated group, indicating reduced pathological damage.
Why These Findings Matter
These preclinical findings add evidence supporting molecular hydrogen's therapeutic potential within the outcomes and biological pathways measured in this model.
How Strong Is This Evidence?
This is preclinical animal evidence from a preclinical animal experiment. It is most informative for the disease model, mechanisms, biomarkers, and outcomes directly measured in the study.
Technical Study Details
H2HUBB classifies this publication as animal study with preclinical animal evidence. The research population or model was mice. The reported sample size was 2. The study used a preclinical animal experiment. The hydrogen delivery method was inhaled hydrogen gas. The source-reported hydrogen concentration was 15% source-reported H₂ gas concentration. The reported treatment duration was 60 min.
Limitations and Safety
No separate limitations or safety findings were identified in the current-study source text available to H2HUBB.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base.