Method: The nitric oxide in the outer hair cells of guinea pig cochlea was examined by 4,5-diaminofluorescein diacetate (DAF-2DA).

• 方法:应用新的荧光染料4；5二氨基乙酰乙酸荧光素(4.；5-diaminofluorescein diacetate；DAF-2DA)测定豚鼠耳蜗外毛细胞内一氧化氮的含量。