A community for people who want to remain as healthy as possible as we age.

Protein Movement of Hair Bundles in the Inner Ear May Preserve Hearing for Life

(Case Western Reserve University) Hearing is made possible when hair bundles protruding from the tops of hair cells capture the energy of sound waves, converting them into electrical signals that stimulate the auditory nerve to the brain. These hair bundles are made up of individual hair-like projections, or stereocilia, which sway in unison with other stereocilia, and remain permanently with us throughout our lives. Extremely loud noise can force whipsaw motion of the stereocilia, causing them to be damaged and the resulting hearing loss to be permanent. The prevailing theory had been that these hair bundles were made up of cellular scaffolding proteins that do not change or circulate.
Scientists at Case Western Reserve University School of Medicine have discovered that the movement of protein within hair cells of the inner ear shows signs of a repair and renewal mechanism…
The discovery paves the way for one day therapeutically manipulating the movement of these proteins in a way that could reverse hearing loss, a condition that affects approximately 15 percent of Americans between the ages of 20 and 69.
[Click the title, above, to post a comment.]

0 comments:

Post a Comment

Please do not give advice. We can best help each other by telling what works for us, not what we think someone else should do.