Navigation Links
Got fish? Nutrition studies explore health benefits
Date:10/8/2010

This release is available in Spanish.

Some of America's most popular fish--salmon and albacore tuna, for example--are rich in healthful natural compounds known as omega-3 fatty acids. Ongoing studies by U.S. Department of Agriculture (USDA) chemist Darshan S. Kelley and co-investigators are helping uncover new details about how these fish-oil components help protect us from chronic diseases.

Kelley is with the USDA Agricultural Research Service (ARS) Western Human Nutrition Research Center at the University of California-Davis. ARS is the USDA's principal intramural scientific research agency.

In an early study with laboratory mice, Kelley and colleagues investigated the interplay of two omega-3 fatty acids from fish oilDHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid)and a third fatty acid, CLA (as trans-10, cis-12 CLA) found in some dietary supplements.

Kelley's 8-week test with 50 laboratory mice indicated that DHA protected the animals against two harmful side effects of CLA: CLA-induced insulin resistance and CLA-induced non-alcoholic fatty-liver disease. In contrast, EPA offered only partial protection against CLA-induced non-alcoholic fatty liver disease and provided no protection against insulin resistance.

If untreated, insulin resistance can lead to diabetes. An estimated 36 million to 57 million Americans are insulin-resistant. Non-alcoholic fatty liver disease can result in cirrhosis of the liver or liver cancer. The study appeared in a 2007 issue of Metabolic Syndrome and Related Disorders.

In related work, published in a 2009 article in Current Opinion in Clinical Nutrition and Metabolic Care, Kelley and University of California-Davis graduate student Dawn Fedor reviewed results from several dozen EPA and DHA studies. In their review, the scientists indicate that findings reported in the past decade have been inconsistent in regard to the effects of EPA and DHA on insulin resistance in human volunteers.

Their review underscores the need for new investigations, with larger numbers of volunteers. Kelley, for example, would like to determine whether DHA can improve the ability of adult, pre-diabetic volunteers to use insulin efficiently, and thus help delay onset of diabetes. Such research might reveal more about the mechanisms of action that DHA and EPA use, the sites upon which they act in the human body, and the genes that control these mechanisms.


'/>"/>

Contact: Marcia Wood
marcia.wood@ars.usda.gov
301-504-1662
United States Department of Agriculture -- Research, Education and Economics
Source:Eurekalert

Related biology news :

1. Killer catfish? Venomous species surprisingly common, study finds
2. Variety of foods -- the key for child nutrition
3. Color My Pyramid nutrition education program battles obesity in DC schools
4. Nutrition and bone health session to open the IOF World Congress on Osteoporosis in Bangkok
5. Consumer not ready for tailor-made nutrition
6. American Dietetic Association releases 2008 nutrition trends survey
7. Experts discuss applying systematic review to the field of nutrition
8. Rutgers receives US$10 million to establish Institute for Food, Nutrition and Health
9. Nutritional supplementation program helps prevent weight loss among children in African country
10. Results of the third school nutrition dietary assessment study published
11. Fighting obesity and illness with a novel approach to nutrition
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... MONICA, Calif. , April 13, 2017 ... New York will feature emerging and evolving ... Summits. Both Innovation Summits will run alongside the expo ... of speaker sessions, panels and demonstrations focused on trending ... coast,s largest advanced design and manufacturing event will take ...
(Date:4/11/2017)... April 11, 2017 No two people ... at the New York University Tandon School of ... have found that partial similarities between prints are ... in mobile phones and other electronic devices can ... The vulnerability lies in the fact that fingerprint-based ...
(Date:4/5/2017)... 5, 2017 Today HYPR Corp. , ... server component of the HYPR platform is officially ... end-to-end security architecture that empowers biometric authentication across Fortune ... already secured over 15 million users across the financial ... connected home product suites and physical access represent a ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... Netherlands (PRWEB) , ... April 20, 2017 , ... ... Technology today announced their strategic partnership to offer a full spectrum of ... authentication, a comprehensive suite of biometric products and the ground-breaking proactive cybersecurity services ...
(Date:4/20/2017)... , April 20, 2017 /PRNewswire/ - Prometic Life Sciences Inc. (TSX: ... results at the International Liver Congress ("ILC") 2017 of the ... Amsterdam on the positive effects of ... model of obesity and metabolic syndrome. ... According to Dr. Lyne Gagnon, Vice-President of R&D ...
(Date:4/20/2017)... and PETACH TIKVAH, Israel , April 20, ... developer of adult stem cell technologies for neurodegenerative diseases, announced ... present at the Alliance for Regenerative Medicine,s (ARM) 5 th ... April 27, 2017 at 09:40 EDT in Boston ... , MD, MHSc, Chief Medical Officer & Chief Operating Officer, ...
(Date:4/19/2017)... ... 2017 , ... Optofluidics today announced that it's changing its ... changed focus to making analytical tools for biopharmaceutical quality control. “We are excited ... Robert Hart. Founders Bernardo Cordovez, Robert Hart and David Erickson have steered the ...
Breaking Biology Technology: