Abstract Polyunsaturated fatty acids (PUFA)in logn chain triglycerides (LCT)serve as precursors to the eicosanoids .It is eicosanoids that plays an important role in the pathogenesis of ARDS.

• 摘要 脂肪乳剂中长链甘油三酯所含多价不饱和脂肪酸是多种生物活性物质（如前列腺素等）的前体它们在成人呼吸窘迫综合征（ARDS）发病中起着极为重要的作用。