Sensorineural hearing loss is the result of damage to and/or loss of sensory hair
cells in the inner ear.
Topics include active biomechanics of sensory hair
bundles, molecular composition of vestibular hair bundles, the tectorial membrane, hair cell afferent synapses, efferent inhibition of the cochlea, inner ear connexin channels, the epidemiology of deafness, hidden hearing loss, and age-related hearing loss.
The organ of Corti at the basilar membrane is the sensory organ for hearing and is made up of sensory hair
cells along with accessory cells and structures.
These tiny, sensory hair
cells are crucial to helping us detect sound waves - but are very fragile.
There's age-related hearing loss (starts at 60) or presbycusis in which hearing is affected by the loss of sensory hair
cells of the inner ear.
In a new study scientists have been able to regrow the sensory hair
cells found in the cochlea -- a part of the inner ear -- that converts sound vibrations into electrical signals and can be permanently lost due to age or noise damage.
We were able to partially restore hearing, especially at lower frequencies, and save some sensory hair
cells, said Thomas B.
In the inner ear of vertebrates, the balance system consists of three semicircular canals that contain fluid and sensory hair
cells that detect movement of the head.
Last year, we have published the first special issue of "Hearing Loss: Reestablish the Neural Plasticity in Regenerated Spiral Ganglion Neurons and Sensory Hair
Cells", and this year in this second special issue, we are presenting a new series of articles to report the most recent advances in several major areas as summarized below: HC development, HC damage and protection, HC regeneration, SGN development and protection, inherited hearing loss, and inner ear drug delivery.
These melanocytes help maintain the high potassium levels of the fluid surrounding the sensory hair
cells in the ear.
The inner ear of the chick embryo contains presumptive sensory hair
cells and supporting cells (Sokolowski et al., 1993).
Hearing loss (measured as auditory threshold shift) may be temporary (TTS), if a repair mechanism is able to restore the organ of Corti or permanent (PTS) when the sensory hair
cells or auditory neurons die.