HOME >> BIOLOGY >> NEWS
Study shows marine omega-3 fatty acids have positive effect on muscle mass

Quebec City, May 9, 2007 -- A research team led by Carole Thivierge, from Universit Lavals Institute of Nutraceutics and Functional Foods, shows that omega-3 fatty acids from fish oil have a positive effect on the metabolism of muscle proteins. This finding, published in a recent edition of the Journal of Physiology, could have significant implications in the fields of animal farming as well as human health.

In mammals, the ability to use nutrients from food and convert them into muscle proteins decreases with age. Though the exact cause of this phenomenon is still unclear, insulin resistance of aging muscle cells has been suggested as a possible answer.

Since omega-3 fatty acids are known to improve glucose metabolism in people and animals showing insulin resistance, the researchers decided to test whether omega-3s could also influence protein metabolism.

To do so, they added supplements containing either omega-3s from fish oil or a mixture of cottonseed and olive oils without omega-3s to the regular diet of steers. After five weeks, animals with the marine omega-3 diet showed increased sensitivity to insulin which, in turn, improved protein metabolism: twice the amount of amino acids was used by their bodies to synthesize proteins, especially in muscles. So it appears that omega-3 fatty acids added to the steers diet replaced other fatty acids in muscle cells and improved their functioning.

This finding could have significant implications in the field of animal farming, according to Thivierge, also a professor in Universit Lavals Department of Animal Sciences, who undertook this study in order to find an alternative to hormonal growth stimulation in beef cattle.

At 4 to 6 months of age, calves become less efficient at converting food into muscle mass, which has a negative impact on farming profitability. "Adding fish oil to their diet could prevent this decline by restoring insulin sensitivity in aging animals,"
'"/>

Contact: Jean-Franois Hupp
jean-francois.huppe@dap.ulaval.ca
418-656-7785
Universit Laval
9-May-2007


Page: 1 2

Related biology news :

1. Study begins to reveal clues to the cause and progression of sepsis
2. Study finds gender differences in renal and other genes contributing to blood pressure
3. Study suggests estrogen deficiency can lead to obesity-induced high blood pressure after menopause
4. Study: Sticking to the sand might not be such good, clean fun for beachgoers
5. Study points to new way to predict death risk from torn aorta
6. Study identifies new gene therapy tools for inherited blindness
7. Study finds contaminated water reaching Floridas offshore keys
8. Study sheds light on why humans walk on two legs
9. Study explains how pathogens evolve to escape detection
10. Study finds hereditary link to premenstrual depression
11. Study identifies energy efficiency as reason for evolution of upright walking

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/3/2019)... (PRWEB) , ... June 03, 2019 , ... Stay on ... biotech, medical device and food industries. Access to all webinars is free, so be ... relevant in your field! , Visit http://www.xtalks.com to see our upcoming webinars: ...
(Date:5/31/2019)... ... May 30, 2019 , ... Researchers ... Mayo Clinic, have documented significant differences in the prevalence of hereditary genetic mutations, ... compared to non-Hispanic White women. Results will be presented at the 2019 American ...
(Date:5/31/2019)... ... May 31, 2019 , ... The OilComm ... Houston, TX, announced today that Ben Reiter, Senior Writer at Sports Illustrated and ... October 3rd.     , Reiter predicted the Houston Astros would win the MLB championship ...
Breaking Biology News(10 mins):
(Date:5/31/2019)... ... May 29, 2019 , ... ... USPTO providing proprietary interest to our methodology, processes, and diagnostic techniques. The ... TREATMENT… extends Somnology’s IP rights including our proprietary sleep scoring methodology. The ...
(Date:5/21/2019)... ... 21, 2019 , ... DuPont Nutrition & Biosciences (DuPont) and ... Brewing Conference dedicated to sharing brewing knowledge, strengthening relationships and discussing best practices ... through a partnership with “Ethiopia Invest”, will run through May 23, 2019, in ...
(Date:5/8/2019)... ... May 07, 2019 , ... Standing at 16.2 hands, Atlas is on the large ... a drill team and barrel racing, among other activities. When loping around a corner ... went from being a busy horse to only being able to walk. Fortunately Atlas’ ...
(Date:5/2/2019)... ... 2019 , ... The centuries old practice of brewing beer thrives today across ... and even home brewing clubs scattered across the nation. , But proper beer ... can produce a superb product. Students at South Dakota School of Mines & ...
Breaking Biology Technology:
Cached News: