Effects of cochlear loading on the motility of active outer hair cells
نویسندگان
چکیده
منابع مشابه
Cochlear outer hair cell motility.
Normal hearing depends on sound amplification within the mammalian cochlea. The amplification, without which the auditory system is effectively deaf, can be traced to the correct functioning of a group of motile sensory hair cells, the outer hair cells of the cochlea. Acting like motor cells, outer hair cells produce forces that are driven by graded changes in membrane potential. The forces dep...
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Outer hair cells, isolated from mammalian cochleas, are known to respond to electrical stimulation with elongation or contraction of the cell's cylindrical soma. It is assumed that such shape changes, when driven by the cell's receptor potential in vivo, are a part of the feedback process that underlies cochlear amplification. To date it has not been possible to demonstrate somatic shape change...
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Cochlear outer hair cells are postulated to modulate auditory transduction by their mechanical properties which presumably are controlled by efferent neurons and regulated by the levels of intracellular calcium. In a number of biological systems these calcium levels are controlled by inositol trisphosphate (InsP3), the second messenger of the phosphoinositide cascade. We have investigated wheth...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2013
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1302911110