Acute lung injury/acute respiratory distress syndrome（ALI/ARDS）is a frequent complication in critically ill patients and cause significant mortality.1 Effects of reactive oxygen species（ROS）on alveolar epithelial cells are involved in the pathophysiology of ALI/ARDS.ROS can provoke DNA damage,lipid peroxidation,and activation of various genes coding for proteins involved in inflammation and cell damage.Edaravone（3-methyl-1-phenyl-2-pyrazoline-5-one）is a potent free radical scavenger and has the ability to inhibit lipid peroxidation,thus e...
