Featured Research

from universities, journals, and other organizations

Both Genetics And Diet Influence Cholesterol Levels

Date:
September 7, 2001
Source:
Center For The Advancement Of Health
Summary:
New research on twins shows that genetics plays a predominate role in differences in cholesterol levels between people. However, a person’s diet also is significantly associated with cholesterol level independent of inherited factors.

New research on twins shows that genetics plays a predominate role in differences in cholesterol levels between people. However, a person’s diet also is significantly associated with cholesterol level independent of inherited factors.

Related Articles


Identical twins who differed the most in their dietary intake had corresponding differences in blood cholesterol measures, showing that the association between diet and cholesterol levels was independent of genetic factors, say Jeanne M. McCaffery and Michael F. Pogue-Geile, who conducted the research in the Department of Psychology at the University of Pittsburgh.

This is the first research in twins to demonstrate an environmental association between diet and cholesterol, according to the study published in the September issue of Health Psychology.

“Because [identical] twins share all their genes, differences between [identical] co-twins, and the correlations of these differences seen here must be attributable to environmental effects of some nature,” they say.

The researchers recruited 204 pairs of same-sex twins from the Pittsburgh area to participate in the study. Blood samples were drawn and subjects were instructed to keep a food diary over a three-day period. Subjects ranged in age from 18 to 30.

The researchers also found that identical twins displayed more similarities in cholesterol levels than were seen in fraternal twins, who do not have all of the same genes. This shows that there are important genetic factors that account for variation in cholesterol levels. In fact, genetic factors accounted for the majority of differences in cholesterol levels among these young adults.

Controlling for this variation due to genetic factors allowed the researchers to show that factors such as fat and calorie intake also have an environmental association with total cholesterol, high-density lipoprotein and low-density lipoprotein levels, although this accounts for a smaller proportion of the differences among individuals.

While the results of this study are consistent with recommendations for changes in caloric and fat intake, it was based on existing associations in the community and did not attempt to alter dietary habits. Therefore, the nature of this study does not directly address the effects of dietary changes on cholesterol lowering, says Pogue-Geile.

Jeanne M. McCaffery currently works at Centers for Behavioral and Preventive Medicine at Brown Medical School.

The study was supported with funding from the National Heart, Lung and Blood Institute, the National Institute of Diabetes and Digestive and Kidney Diseases, and the National Institutes of Mental Health.


Story Source:

The above story is based on materials provided by Center For The Advancement Of Health. Note: Materials may be edited for content and length.


Cite This Page:

Center For The Advancement Of Health. "Both Genetics And Diet Influence Cholesterol Levels." ScienceDaily. ScienceDaily, 7 September 2001. <www.sciencedaily.com/releases/2001/09/010907080306.htm>.
Center For The Advancement Of Health. (2001, September 7). Both Genetics And Diet Influence Cholesterol Levels. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2001/09/010907080306.htm
Center For The Advancement Of Health. "Both Genetics And Diet Influence Cholesterol Levels." ScienceDaily. www.sciencedaily.com/releases/2001/09/010907080306.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Texas Nurse Nina Pham Cured of Ebola

Texas Nurse Nina Pham Cured of Ebola

AFP (Oct. 25, 2014) — An American nurse who contracted Ebola while caring for a Liberian patient in Texas has been declared free of the virus and will leave the hospital. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins