On one hand, a certain range of acitivity of NOS might help to restore injured neurons.On the other hand, over expression of NOS might exacerbate the injury of cochlear nerves.

• 结果提示，白噪声暴露后，耳蜗核NOS可能具有多重作用，NOS活性在一定范围内可能促进损伤修复，过量表达可加重耳蜗神经损伤。