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In human newborns, the inner ear is fully mature. Thus, hair cell loss results in loss of hearing at any postnatal stage. The adult mammalian inner ear lacks the capacity to divide or regenerate spontaneously hair cells. [27] This is to say that neither direct transdifferentiation nor mitotic division have the innate ability to restore hair cells.
There are several human tissues that have been successfully or partially induced to regenerate. Many fall under the topic of regenerative medicine, which includes the methods and research conducted with the aim of regenerating the organs and tissues of humans as a result of injury. The major strategies of regenerative medicine include ...
[15] however, studies found that humans and other mammals are unable to replace the damaged hair cells, the loss of hair cells could lead to permanent deafness. [16] In addition to hair cell regeneration, supporting cells also act as mediators to hair cell survival. [11]
Research conducted on horses, dogs, and cats has led to the development of stem cell treatments in veterinary medicine which can target a wide range of injuries and diseases, such as myocardial infarction, stroke, tendon and ligament damage, osteoarthritis, osteochondrosis and muscular dystrophy, both in large animals as well as in humans.
Regenerative medicine deals with the "process of replacing, engineering or regenerating human or animal cells, tissues or organs to restore or establish normal function". [1] This field holds the promise of engineering damaged tissues and organs by stimulating the body's own repair mechanisms to functionally heal previously irreparable tissues ...
A hearing test administered by a medical doctor, otolaryngologist (ENT) or audiologist including pure tone audiometry and speech recognition may be used to determine the extent and nature of hearing loss, and distinguish presbycusis from other kinds of hearing loss. Otoacoustic emissions and evoked response testing may be used to test for audio ...