Manipulations of chloride ion concentration in the organ of corti alter outer hair cell electromotility and cochlear amplification

被引:0
|
作者
Zheng, J. [1 ]
Zou, Y. [1 ]
Nuttall, A. L. [1 ]
Santos-Sacchi, J. [1 ]
机构
[1] Oregon Hlth Sci Univ, Oregon Hearing Res Ctr, Portland, OR 97239 USA
关键词
D O I
10.1142/9789812773456_0016
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
There is evidence that intracellular chloride ions modulate prestin function. This study investigated how chloride ions (Cl-) influence cochlear sensitivity and OHC electromotility. Lowering perilymph Cl- concentration greatly reduced the magnitude of basal turn BM motion and the electrically evoked otoacoustic emissions. These effects could be modulated by tributyltin (TBT, a Cl- ionophore). The results indicate that the electrochemical drive for Cl- is important for normal activity of prestin.
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页码:107 / 108
页数:2
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