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:1/18/2016)... Jan. 18, 2016  Extenua Inc., a pioneering ... the use and access of ubiquitous on-premise and ... with American Cyber.  ... leading transformational C4ISR and Cyber initiatives in support ... latest proven technology solutions," said Steve Visconti ...
(Date:1/13/2016)... , January 13, 2016 /PRNewswire/ ... announced the addition of the  "India ... Estimation & Forecast (2015-2020)"  report ... http://www.researchandmarkets.com/research/7h6hnn/india_biometrics ) has announced the addition ... Identification Market - Estimation & Forecast ...
(Date:1/8/2016)... MANCHESTER, United Kingdom , Jan. 8, 2016 /PRNewswire/ ... sensor-based diagnostic products, today announced the closing of a $9 ... investors.  Proceeds from the financing will be used to accelerate ... device for detecting early-stage pressure ulcers. ... after receiving CE Mark approval. The device,s introduction has been ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... ... February 08, 2016 , ... Franz Inc. ... Graph Database technology, today announced the availability of AllegroGraph 6, the leading Semantic ... Cloudera Certified Technology Program (CCPT). AllegroGraph is the first Semantic Graph ...
(Date:2/6/2016)... ... ... The Center for Excellence in Education (CEE) will sponsor a Bite of Science ... 2016. This Bite of Science session, hosted by the Smithsonian-Mason School of Conservation, ... in Front Royal, VA from 5:00 p.m. to 8:00 p.m. The dinner is for ...
(Date:2/5/2016)... February 5, 2016 Amarantus BioScience ... company focused on developing products for Regenerative Medicine, Neurology ... Pediatric Disease Designation (RPDD) from the US Food and ... MANF. MANF was previously granted orphan drug designation (ODD) ... Amarantus BioScience Holdings, Inc. (OTCQB: AMBS), ...
(Date:2/4/2016)... ... February 04, 2016 , ... ... and triple quad LC-MS, host live demos and poster sessions, and present on ... exhibition. The conference takes place March 6 to 10 at the Georgia World ...
Breaking Biology Technology: