Hydrogen gas inhalation protects against cigarette smoke-induced COPD development in mice.
Wenju Lu, Defu Li, Jieying Hu, Huijun Mei, Jiaze Shu, Zhen Long, Liang Yuan, Difei Li, Ruijuan Guan, Yuanyuan Li, Jingyi Xu, Tao Wang, Hongwei Yao, Nanshan Zhong, Zeguang Zheng · Journal of thoracic disease · 2018
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, H₂ decreases H₂O₂ -induced pro-inflammatory cytokine release in human bronchial epithelial cells Under the exposure of 42% H₂, concentration of H₂ in cell culture medium gradually increased with the exposure time, and H₂ concentration in cell culture medium was saturated at 60 min (445±36 ppb) ( Figure 4A ). 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 hydrogen-rich water affected the outcomes measured in mice. H₂ decreases H₂O₂ -induced pro-inflammatory cytokine release in human bronchial epithelial cells Under the exposure of 42% H₂, concentration of H₂ in cell culture medium gradually increased with the exposure time, and H₂ concentration in cell culture medium was saturated at 60 min (445±36 ppb) ( Figure 4A ).
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: 66.7% source-reported H₂ gas concentration; Source-reported hydrogen exposure: 66.7% source-reported H₂ gas concentration; 3.8 L/min H₂ flow (3800 mL/min H₂); reported treatment duration: 60 days. H₂ decreases H₂O₂ -induced pro-inflammatory cytokine release in human bronchial epithelial cells Under the exposure of 42% H₂, concentration of H₂ in cell culture medium gradually increased with the exposure time, and H₂ concentration in cell culture medium was saturated at 60 min (445±36 ppb) ( Figure 4A ). The authors concluded that these findings demonstrated that H₂ inhalation could inhibit CS-induced COPD development in mice, which is associated with reduced ERK1/2 and NF-κB-dependent inflammatory responses. Hydrogen (H₂) has been shown to be anti-oxidative and anti-inflammatory. 16HBE cells were used to evaluate the effects of H₂ on signaling change caused by hydrogen peroxide (H₂O₂).
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 study used a preclinical animal experiment. The hydrogen delivery method was hydrogen-rich water. The source-reported hydrogen concentration was 66.7% source-reported H₂ gas concentration. The reported treatment duration was 60 days.
Limitations and Safety
Reported limitations: These histopathological changes lead to gas trapping and progressive airflow limitation.
Original Study and H2HUBB Research Context
H2HUBB presents this source-grounded research record as one contribution to the broader molecular-hydrogen evidence base. The original scholarly source is available at https://jtd.amegroups.org/article/view/22104/17001.