The function and regeneration ability of the inner ear hair cells in mammals.

Scientists have long believed that mammalian inner ear hair cells are reduced only by aging or injury.
but U.S. researchers recently reported in the American journal Electronic Life that a hair cell responsible for balancing function in the inner ear can be regenerated.
findings may help improve balance and hearing in older people and treat diseases such as deafness caused by toxic side effects.
ear can be divided into auditor cochlear implants and balancer fortriums.
are the key cells of many animal balance systems and auditory systems, located in the inner cochlea and foretrium, divided into I. hair cells and II. hair cells.
for fish and birds, the equilibrium inner ear foretric hair cells have the ability to regenerate autonomously, and the new cells replace the dead cells.
but scientists also lack evidence that mammalian fortrial hair cells can regenerate autonomously.
researchers at the University of Washington and others conducted experiments on whether the foretrial hair cells in adult mice were self-regenerating, fluorescently labeling the supporting cells around the hair cells.
, the researchers did not observe fluorescent markers in type I hair cells, but fluorescent markers were observed in type II hair cells.
suggests that the supporting cells have been transformed into type II hair cells.
, a professor at the University of Washington School of Medicine who was involved in the study, said the findings could help researchers understand the process of regeneration of frontal hair cells and use techniques to promote the regeneration of inner ear hair cells.
in the inner ear, I. hair cells are interwoven with type II. hair cells, which have different molecular, morphological, and physiological characteristics but are associated with the same nerves.
researchers don't know why mammalian type II hair cells have the ability to regenerate, while type I. hair cells don't.
researchers will study this next.
say the function of inner ear hair cells and their ability to regenerate are important for older people.
people's balance and auditory abilities decline with age, and the health of the elderly is compromised.
doctors know how to stimulate the regeneration of human inner ear hair cells, it may help improve balance and hearing in the elderly, and treat diseases such as deafness caused by toxic side effects.
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