Miyata T, Matsumoto N, Yuki H, Takahama K, Okano Y, Kai H
Department of Pharmacological Sciences, Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Arch Int Pharmacodyn Ther. 1988 Nov-Dec;296:202-9.
Cigarette smoke exposure impaired the mucociliary transport on the tracheal mucosa of pigeons. N-acetylneuraminic acid (NANA), but not lactose, dose-dependently protected against the impairment of the mucociliary transport. The results suggest that NANA, a representative sialic acid existing on the airway epithelium, may participate the defence mechanism in the respiratory tract against irritant gases.
接触香烟烟雾会损害鸽子气管黏膜的黏液纤毛运输功能。N-乙酰神经氨酸(NANA)而非乳糖,能剂量依赖性地保护黏液纤毛运输功能免受损害。结果表明,作为气道上皮细胞上存在的一种代表性唾液酸,NANA可能参与呼吸道针对刺激性气体的防御机制。