Genes influence age-related hearing loss

November 14, 2007

Waltham, MA-A new Brandeis University study of twins shows that genes play a significant role in the level of hearing loss that often appears in late middle age. The research, in the Journal of Gerontology: Medical Sciences, examined genetic and environmental factors affecting hearing loss in the frequency range of speech recognition.

"This research confirms the importance of genetic factors in age-associated hearing loss, and the need for vulnerable individuals and their families to take extra care to prevent further hearing damage," said lead author Brandeis neuroscientist Arthur Wingfield.

The research suggests that middle-aged and older people with a genetic vulnerability to hearing loss should be particularly careful about environmental risk factors such as harmful noise and medications whose side-effects could be detrimental to hearing.

The study examined 179 identical and 150 fraternal male twin pairs, ranging in age from 52 to 60 years, as part of the Viet Nam Era Twin Study of Aging (VETSA). About two-thirds of the hearing loss in the individual subjects' better ears could be accounted for by genetic factors. In the subjects' poorer ears, about one-half of the hearing loss was due to genes, the study concluded.

Wingfield, an expert on the relationship between memory performance and hearing loss in older adults, said that even mild hearing loss can indirectly lead to declines in cognitive performance because intellectual energy normally reserved for higher-level comprehension must be directed toward perceptual effort for accurately hearing speech.

Hearing loss is the third most common chronic disability among older adults after arthritis and hypertension.
-end-


Brandeis University

Related Aging Articles from Brightsurf:

Surprises in 'active' aging
Aging is a process that affects not only living beings.

Aging-US: 'From Causes of Aging to Death from COVID-19' by Mikhail V. Blagosklonny
Aging-US recently published ''From Causes of Aging to Death from COVID-19'' by Blagosklonny et al. which reported that COVID-19 is not deadly early in life, but mortality increases exponentially with age - which is the strongest predictor of mortality.

Understanding the effect of aging on the genome
EPFL scientists have measured the molecular footprint that aging leaves on various mouse and human tissues.

Muscle aging: Stronger for longer
With life expectancy increasing, age-related diseases are also on the rise, including sarcopenia, the loss of muscle mass due to aging.

Aging memories may not be 'worse, 'just 'different'
A study from the Department of Psychological & Brain Sciences in Arts & Sciences adds nuance to the idea that an aging memory is a poor one and finds a potential correlation between the way people process the boundaries of events and episodic memory.

A new biomarker for the aging brain
Researchers at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have identified changes in the aging brain related to blood circulation.

Scientists invented an aging vaccine
A new way to prevent autoimmune diseases associated with aging like atherosclerosis, Alzheimer's disease, and Parkinson's disease was described in the article.

The first roadmap for ovarian aging
Infertility likely stems from age-related decline of the ovaries, but the molecular mechanisms that lead to this decline have been unclear.

Researchers discover new cause of cell aging
New research from the USC Viterbi School of Engineering could be key to our understanding of how the aging process works.

Deep Aging Clocks: The emergence of AI-based biomarkers of aging and longevity
The advent of deep biomarkers of aging, longevity and mortality presents a range of non-obvious applications.

Read More: Aging News and Aging Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.