Oxidative stress plays critical role in the pathogenesis of chronic obstructive pulmonary disease（COPD）

so therapy targeted on oxidative stress is of great importance for COPD.However

since the current used antioxidants are not satisfying

scientists have to find more effective antioxidants for COPD.Hydrogen

the most abundant chemical element in the universe

was recently discovered as a novel therapeutic medical gas

and has shown great antioxidant potential in a series of recent published researches for its feature of selectively reducing toxic reactive oxygen species.Based on these findings

we hypothesize that hydrogen gas therapy might be a novel

effective

safe

and economic treatment for COPD patients in one day.