hair cell

(redirected from Outer hair cell)
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a sensory epithelial cell present in the organ of Corti

References in periodicals archive ?
Thus, after the compilation using the formula, the final results of the test are displayed as PASS or REFER, which in turn explain the outer hair cell functioning.
We evaluated the ototoxic effect of aminoglycosides on the outer hair cells of newborns in a neonatal intensive care unit (NICU) by means of distortion-product otoacoustic emissions (DPOAE) testing.
After noise exposure, the guinea pigs underwent auditory brainstem response (ABR) threshold measurements, reactive oxygen species (ROS) were detected in their cochleas with electron spin resonance (ESR), and outer hair cells (OHCs) were counted with silvernitrate (AgNO [sub]3 ) staining at 1, 4, and 6 days.
Because there is no commonly accepted gold standard of outer hair cell damage in humans, test accuracy can never be completely known for this method.
These free radicals cause ototoxicity by damaging the outer hair cells of the inner ear.
It has been indicated that the most influenced cells are the outer hair cells.
3) Therefore, if anything goes wrong in the cochlea, it is more apparent in the measures of the outer hair cells which is the origin of the otoacoustic emission and is an extremely sensitive measure of cochlear function.
It has been proposed that changes in hearing function among women may occur as a result of menses-associated variations in cochlear blood flow and/or changes in those outer hair cells that are sensitive to metabolic and hormonal fluctuations.
This leads to permanent damage to the outer hair cells of the cochlea, resulting in permanent hearing loss.
OAE's are a byproduct of sensory outer hair cell transduction and are reflected as echoes into the external auditory canal.
4) Bauer proposed that tinnitus is the result of reversible outer hair cell dysfunction and decoupling stereocilia from the tectorial membrane.
141) Salvi et al showed that leupeptin caused as much as a 60% reduction in outer hair cell loss from acoustic overstimulation (an octave-band noise centered at 4.
According to Spoendlin, three or four fibers end on each outer hair cell, but none ends directly on the inner hair cells.
This disorder is difficult to treat as it is not easy to introduce 'repair genes' into the hair cells to help them function correctly, however, the method employed by the two universities enabled inner and outer hair cells to be improved.
Alcohol: Long-term exposure to alcohol may harm cochlear function, especially the outer hair cells, which can lead to SNHL.