What happens when hair cells are damaged?

In humans and other mammals, any damage that results in hair cell death can lead to irreparable hearing loss due to the inability of mature mammalian hair cells to regenerate [10]. In contrast, the hair cells of many non-mammalian vertebrates, such as birds and amphibians, have a significant regenerative capacity [11].

What happens when inner hair cells are damaged?

Inner Hair Cell Loss Disrupts Hearing and Cochlear Function Leading to Sensory Deprivation and Enhanced Central Auditory Gain.

Can a damaged hair cell be repaired?

To fully maintain auditory function, damaged hair cells must be repaired. Broken tip links are repaired in both regenerating and nonregenerating hair cells. Intense noise exposure damages the stereocilia F-actin core, which may be repaired by localized F-actin remodeling.

Can damaged hair cells in ear regenerate?

Unlike their counterparts in other mammals and birds, human hair cells cannot regenerate. So, once hair cells are damaged, hearing loss is likely permanent.

Can you hear without outer hair cells?

Sensorineural (pronounced: sen-so-ree-nyour-ul) hearing loss results from damage to the inner ear (cochlea) or the auditory nerve. The most common type is caused by the outer hair cells not functioning correctly. The person has trouble hearing clearly, understanding speech, and interpreting various sounds.

Can you regain hearing?

The good news is: Although it is impossible to restore hearing, it is possible to treat and improve hearing loss with hearing aids! There are several different types of hearing loss. By far, the most common type is hearing loss that happens due to aging.

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Can hearing damage be reversed?

Once damaged, your auditory nerve and cilia cannot be repaired. But, depending on the severity of the damage, sensorineural hearing loss has been successfully treated with hearing aids or cochlear implants. There is, however, the possibility that your hearing loss isn’t reversible.

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