Hearing problems may be programmed at birth

Hearing loss in adulthood may be programmed at birth, and short people may be particularly susceptible, say researchers from Sweden in this week's BMJ.

Their conclusions are based on the theory (known as the thrifty phenotype hypothesis) that events before birth, such as malnutrition or exposure to alcohol or nicotine, may cause disease in adulthood.

They assessed the hearing of 479 men aged 20 to 64, who were exposed to noise in their jobs, and 500 randomly selected male conscripts born in 1974. Factors such as height, weight, exposure to noise, heredity for hearing loss, and other medical disorders including use of drugs were taken into account.

Among the conscripts, shortness was found twice as often in those with hearing loss as in men with normal hearing. Shortness was also associated with a positive heredity for hearing loss but not with noise exposure.

Short workers had worse hearing than expected by age, three times more often than taller workers and were 12 times more often taking drugs.

The thrifty phenotype hypothesis is applicable to hearing loss, say the authors. They suggest that a low level of growth hormone (IGF-1) before birth leads to a reduced number of cells at birth, which results in short stature and earlier onset of age related disorders.


Contact: Emma Dickinson
BMJ-British Medical Journal

Page: 1

Related medicine news :

1. Hearing aid signal not clear? Then switch frequency to FM, finds UCI study
2. Hearing aid research gets federal boost
3. Hearing infants show preference for sign language over pantomime
4. New Research Points The Way To Restoring Noise-Induced Hearing Loss In Mammals, Including Humans
5. Can We Prevent Hearing Loss In Elderly Women?
6. Study Of Women And Hearing Reveals Need For Routine Hearing Tests
7. Magnetic Hearing Aid Could Open New "Window" For Hearing Impaired
8. Drug Prevents Hearing Loss Caused By Brain Tumor Therapy
9. Antioxidant-Enhancing Drug Partly Rescues Noise-Induced Hearing Loss
10. College alcohol problems exceed previous estimates
11. Men with severe sleep breathing disorder have higher risk of heart problems

Post Your Comments:

(Date:11/11/2019)... ... 2019 , ... As Americans celebrate Veterans Day and honor the brave men ... that they also deserve recognition and compassionate care when dealing with an advanced illness. ... is demonstrating its commitment to providing specialized care for Veterans who are facing a ...
(Date:11/11/2019)... , ... November 11, 2019 , ... Last year’s expo ... different countries including big box buyers like Costco, Walmart, and GNC. Exhibitors included ... to name a few. , This year, CBD.io and partners, are ...
(Date:11/11/2019)... ... November 11, 2019 , ... Dr. John V. Prunskis, co-founder ... and Human Services’ (HHS) Pain Management Best Practices Task Force (Pain Task Force) met ... was in follow up to the HHS Pain Task Force’s final report that was ...
(Date:11/9/2019)... ... November 08, 2019 , ... ... care field, is pleased to announce that after the fourth quarter of the ... percentile with a 94.73% average pass rate. The College’s annual pass rate for ...
(Date:11/7/2019)... ... November 06, 2019 , ... Atlantic Ultraviolet Corporation makes it ... to get the flu shot. Since the flu season starts in October until March, ... Fall, where their employees can simply sign-up and get their shot. , Ann Wysocki, ...
Breaking Medicine News(10 mins):
(Date:11/11/2019)... , ... November 11, 2019 ... ... signed a mutual agreement to facilitate the coordination and implementation of joint ... monitoring of medicinal products. These undertakings will empower biomedical professionals to leverage ...
(Date:11/11/2019)... ... November 10, 2019 , ... Carex, a ... its website , which features over 600 available products and improved navigation ... commitment to providing high-quality health and wellness products, alongside, studies showing that ...
(Date:11/9/2019)... Calif. (PRWEB) , ... November 08, 2019 , ... ... facial plastic surgeon with extraordinary surgical skills. As a trained sculptor and painter, ... to create harmonious, natural-looking results for each patient. Dr. Sadati has made appearances ...
Breaking Medicine Technology:
Cached News: