Daffodil International University

Faculties and Departments => Allied Health Science => Genetic & Biotechnology => Topic started by: Asif.Hossain on October 23, 2013, 07:14:41 PM

Title: Gene Mutation Linked to Old Age Hearing Loss Identified
Post by: Asif.Hossain on October 23, 2013, 07:14:41 PM
Gene Mutation Linked to Old Age Hearing Loss Identified -
Over a 9 year study researchers were able to identify the first genetic biomarker for presbycusis. The genetic mutation carried by those who ultimately suffer from age-related hearin
g loss is linked to speech processing abilities in older people.
(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-frc3/390005_123038391185230_1580534803_n.jpg)
Interestingly, the gene mutation played out differently in women than in men. While the variation had a negative impact for men, it did the opposite for women, who actually had better than average hearing in their elder years. That discovery supports a 2006 finding by another reaserch group that the hormone aldosterone plays a role in hearing capabilities. More info here: http://bit.ly/U79Vxp Journal Article: http://dx.doi.org/10.1016/j.heares.2012.08.016

Image: SEM of stereocilia (mechanosensing hair cells) from human chochlea (inner ear). Wellcome Photo Library