Navigation Links
Do soy isoflavones boost bone health?
Date:7/30/2010

This release is available in Spanish.

Scientists already know much about the more than 200 bones that make up your body. But mysteries remain regarding the exact role that many natural compounds in foods might play in strengthening our skeletons. Those compounds include estrogen-like substances known as soybean isoflavones.

Agricultural Research Service (ARS) physiologist Marta D. Van Loan and other researchers learned more about these compounds in a 3-year study--the longest of its kind--reported earlier this year in the American Journal of Clinical Nutrition. Van Loan is with the ARS Western Human Nutrition Research Center at the University of California-Davis.

Because of its potential as a possible substitute for conventional steroid hormone replacement therapy for postmenopausal women, soy has been the subject of more than two dozen studies conducted here and abroad during the past decade. According to Van Loan, some of those investigations suggest that soy enhances bone health.

Van Loan teamed up with Iowa State University researcher D. Lee Alekel and others for the 3-year investigation to determine whether isoflavones extracted from soy protein would protect postmenopausal volunteers against bone loss. Participants in the study took either a placebo tablet or a tablet containing one of two moderate amounts of the isoflavones--80 milligrams (mg) or 120 mg--for the duration of the investigation.

Overall, the isoflavones had no significant positive effect on preventing bone loss. However, the 120-mg treatment showed a modest benefit when evaluated in conjunction with lifestyle factors.

The researchers suggest that the body's response to isoflavones extracted from soy proteins may be different from responses to isoflavones in their natural matrix of soy protein or soy foods, or in a soy-protein supplement. Or, some soy-protein compound other than the extracted isoflavones may have been responsible for the bone-protecting effects seen in some previous studies. Finally, the isoflavone doses used in the 2010 study may not have been high enough to produce a bone-sparing effect.


'/>"/>

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. Multicenter study finds little effect of soy isoflavones on bone loss in postmenopausal women
2. Army can boost mission success by better managing
3. Nanotechnology boosts war on superbugs
4. Diabetes researcher gets $5M boost
5. Boost from McGill, Gates Foundation helps Africans control pharma research
6. Supercomputer provides massive computational boost to biomedical research at TGen
7. Shrimp trawling may boost mercury in red snapper, study suggests
8. Tropical forest carbon monitoring gets big boost
9. A little wine boosts omega-3 in the body: Researchers find a novel mechanism for a healthier heart
10. Research project to boost European fish farming
11. High CO2 boosts plant respiration, potentially affecting climate and crops
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/10/2017)... DUBLIN , Feb 10, 2017 ... PharmaBiotech,s new report "Personalized Medicine - Scientific and Commercial ... ... in personalized medicine. Diagnosis is integrated with therapy for selection ... emphasis on early detection and prevention of disease in modern ...
(Date:2/8/2017)... 7, 2017 Report Highlights ... The global synthetic-biology market reached ... by 2021, growing at a compound annual growth rate (CAGR) ... of the global markets for synthetic biology. - Analyses of ... and projections of compound annual growth rates (CAGRs) through 2021. ...
(Date:2/7/2017)... Ind. , Feb. 7, 2017 Zimmer ... leader in musculoskeletal healthcare, will present at the LEERINK ... New York Palace Hotel on Wednesday, February 15, 2017 ... live webcast of the presentation can be accessed at ... replay following the conference via Zimmer Biomet,s Investor Relations ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... ... February 22, 2017 , ... Seventy-one members ... named Fellows of the Society this year, the Fellows Committee has announced. The ... of optics, photonics, and imaging as well as their service to the Society ...
(Date:2/22/2017)... (PRWEB) , ... February 22, 2017 , ... Park ... free AFM Luncheon for all SPIE attendees and Park customers ... just one block from the San Jose Convention Center. The luncheon will feature ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... provider of women’s health, primary care, and specialty education, announced today it ... Education (ACCME). ACCME’s Accreditation with Commendation is a six-year accreditation and is ...
(Date:2/22/2017)... ... , ... LabRoots , the leading provider of educational and interactive virtual ... announce the launch of a new scholarship for young scientists seeking a degree in ... is open to all high school seniors, 17 years or older; as well as ...
Breaking Biology Technology: