Document Detail


Combination of genistin and fructooligosaccharides prevents bone loss in ovarian hormone deficiency.
MedLine Citation:
PMID:  20132047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We have reported that soy isoflavones are capable of preventing loss of bone mineral density (BMD) in rats due to ovariectomy. The intestinal microflora is important in rendering soy isoflavones bioavailability by facilitating their conversion to equol. Hence, substances that can modulate the intestinal microflora could affect the bioavailability of isoflavones. The purpose of this study was to examine whether combination of genistin and fructooligosaccharides (FOS), a prebiotic, can enhance the effects of soy isoflavones on bone in ovariectomized (OVX) female rats. Forty-eight 90-day-old female Sprague-Dawley rats were either sham-operated (Sham; one group) or Ovx (three groups) and were placed on dietary treatment for 50 days. The Sham and one Ovx group received a control diet, and the remaining Ovx groups received genistin-rich isoflavones diet (Ovx+G) or genistin-rich isoflavones and FOS diet (Ovx+G+FOS). After 50 days, blood and bone specimens were collected for analysis. The genistin-rich isoflavones diet was able to significantly increase the whole-body, right femur, and fourth lumbar BMD by 1.6%, 1.48%, and 1.3%, respectively in comparison with the Ovx control. The combination of genistin-rich isoflavones diet and 5% FOS further increased whole-body, right femur, and fourth lumbar BMD more compared to the genistin-rich isoflavones diet. Our findings suggest that although a genistin-rich isoflavones diet can increase the BMD in rats with Ovx-induced bone loss, combination of genistin-rich isoflavones and FOS had greater effect in preventing bone loss in this rat model.
Authors:
Shirin Hooshmand; Shanil Juma; Bahram H Arjmandi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of medicinal food     Volume:  13     ISSN:  1557-7600     ISO Abbreviation:  J Med Food     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-23     Completed Date:  2010-10-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812512     Medline TA:  J Med Food     Country:  United States    
Other Details:
Languages:  eng     Pagination:  320-5     Citation Subset:  IM    
Affiliation:
Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, Florida 32306-1493, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Bone Density / drug effects*
Bone Density Conservation Agents / pharmacology,  therapeutic use*
Bone and Bones / drug effects,  metabolism
Drug Therapy, Combination
Estrogens / deficiency
Female
Intestines / microbiology
Isoflavones / pharmacology,  therapeutic use*
Oligosaccharides / pharmacology,  therapeutic use*
Osteolysis / metabolism,  prevention & control*
Osteoporosis / drug therapy*,  metabolism
Ovariectomy
Ovary
Phytoestrogens / pharmacology,  therapeutic use
Phytotherapy
Plant Extracts / pharmacology,  therapeutic use*
Prebiotics
Rats
Soybeans / chemistry
Chemical
Reg. No./Substance:
0/Bone Density Conservation Agents; 0/Estrogens; 0/Isoflavones; 0/Oligosaccharides; 0/Phytoestrogens; 0/Plant Extracts; 0/Prebiotics; 529-59-9/genistin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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