Pulmonary surfactants(PS) is important to maintain the normal lung function,and surfactant alterations have been implicated in the pathophysiology of acute respiratory distress syndrome(ARDS).

• 肺表面活性物质(PS)在维持正常的肺功能起着重要作用,业已证明,PS异常与急性呼吸窘迫综合征(ARDS)的发病有关。