Navigation Links
Low heritability of tinnitus
Date:4/20/2010

The relative importance of genetic factors in tinnitus is low, according to new research from the Norwegian Institute of Public Health. This is the first large population-based study to measure the heritability of tinnitus.

The study looked at prevalence of tinnitus and to what degree it is hereditary. Prevalence of tinnitus was 15.1 percent, which correlates well with findings from other countries.

Tinnitus is a symptom with a variety of underlying causes, such as impaired hearing or exposure to noise and medicines.

Surprisingly low heritability

The new study shows that only 11 percent of the variance of tinnitus in the population are caused by genetic effects, whereas environmental factors account for the remaining 89 percent.

"Such a low heritability is a surprising find because most other diseases studied earlier have been more or less hereditary. We had expected that genetics and the environment would be roughly as important as each other," said Dr Ellen Kvestad at the Division for Mental Health at the Norwegian Institute of Public Health.

The article "Low heritability of tinnitus" was recently published in Archives of Otolaryngology Head and Neck Surgery.

Sub-groups of tinnitus can have higher heredity

In this study it was not possible to differentiate between different clinical forms of tinnitus.

"Our findings do not mean that genes are not important for some forms of tinnitus. Some sub-groups of tinnitus with certain underlying causes can have higher heritability. From our findings alone, resources cannot be allocated to find specific genes that code for tinnitus in general, added Kvestad.


'/>"/>

Contact: Julie Johansen
julie.johansen@fhi.no
Norwegian Institute of Public Health
Source:Eurekalert

Page: 1

Related biology news :

1. The effect of parental education on the heritability of childrens reading disability
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... YORK , Feb. 2, 2016 /PRNewswire/ ... facilities are primarily focused on medical screening ... measure point-of-care parameters. Wearable devices that facilitate ... user,s freedom of movement are being bolstered ... for human biomedical signal acquisition coupled with ...
(Date:2/2/2016)... , Feb. 2, 2016  Based on its ... & Sullivan recognizes US-based Intelligent Retinal Imaging Systems ... Sullivan Award for New Product Innovation. IRIS, a ... North America , is poised to ... growing diabetic retinopathy market. The IRIS technology presents ...
(Date:1/27/2016)...  Rite Track, Inc. a leading semiconductor equipment and ... Ohio announced today the acquisition of PLUS LLC. ... Austin, Texas , will significantly bolster ... installations and technical support offerings for TEL Track Systems. ... "PLUS has provided world class service including refurbishment, enhancements ...
Breaking Biology News(10 mins):
(Date:2/11/2016)...  Wellcentive today announced it has been selected ... -based community care organization (CCO) with more than ... reporting and care management solutions and services. Wellcentive,s ... quality managers, analysts and care managers while providing ... FamilyCare members. Oregon ...
(Date:2/11/2016)... , Feb. 11, 2016   BioInformant announces ... "Stem Cell Research Products, Opportunities, Tools, and Technologies – ... The ... the stem cell industry, BioInformant has more than a ... stem cell market, by stem cell type. This powerful ...
(Date:2/10/2016)... , Febr. 10, 2016 /PRNewswire/ - BioAmber Inc. (NYSE: ... to announce that Mitsui & Co. Ltd., its partner ... acid plant, is investing an additional CDN$25 million in ... its stake from 30% to 40%.  Mitsui will also ... acid produced in Sarnia , providing ...
(Date:2/10/2016)... 2016 ASAE is introducing a hybrid membership ... (AMC) the option of joining or renewing through an ... by staff size, every employee in any size association ... reap all available member benefits.   John ... membership options will allow organizations of any size and ...
Breaking Biology Technology: