IL1B and acute respiratory distress syndrome: In seawater instillation-induced ALI in rabbits, molecular hydrogen inhalation alleviated histopathological changes and cell apoptosis; decreased the malondialdehyde content and MPO activity in lung tissues; decreased the levels of TNF-α, IL-1β, and IL-6 in bronchoalveolar lavage fluid; and markedly improved lung endothelial permeability.