Document Detail


Flaxseed oil and bone development in growing male and female mice.
MedLine Citation:
PMID:  16207634     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Flaxseed is being increasingly incorporated into foods as a result of its proposed health benefits. Combined with the fact that bone is sensitive to dietary changes in fatty acids, the optimization of bone metabolism during childhood may be influenced by altering the type and amounts of fatty acids consumed. The effects of whole flaxseed or its purified lignan on bone development have been investigated, but positive and/or negative effects of flaxseed oil (FO), rich in alpha-linolenic acid (ALA), on bone development have not been reported. The objective of this study was to elucidate the effects of a 10% FO diet on indices of bone health, including bone mass and biomechanical bone strength. Male and female mice were fed either a 10% flaxseed oil (FO) or a 10% corn oil (CO) diet from postnatal day (PND) 28 until PND 91. Male and female mice fed FO converted ALA to eicosapentanoic acid (EPA) and docosahexanoic acid (DHA) as indicated by significantly higher serum EPA and DHA; however, serum cytokines (interleukin-1beta, interleukin-6, tumor necrosis factor-alpha) with the potential to modulate bone metabolism did not significantly differ among groups. As expected, serum linoleic acid and arachidonic acid were significantly lower among mice fed FO. Feeding FO diet did not result in a higher or lower bone mass or stronger or weaker femurs and lumbar vertebra than in mice fed CO diet in either gender, suggesting that the level of ALA attainable in a 10% flaxseed oil diet is safe with regard to bone development in growing mice.
Authors:
Stacey L Cohen; Wendy E Ward
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of toxicology and environmental health. Part A     Volume:  68     ISSN:  1528-7394     ISO Abbreviation:  J. Toxicol. Environ. Health Part A     Publication Date:  2005 Nov 
Date Detail:
Created Date:  2005-10-06     Completed Date:  2005-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100960995     Medline TA:  J Toxicol Environ Health A     Country:  England    
Other Details:
Languages:  eng     Pagination:  1861-70     Citation Subset:  IM    
Affiliation:
Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animals
Biomechanics
Bone Development / drug effects*
Female
Femur / physiology
Linseed Oil / adverse effects,  metabolism*,  pharmacology*
Male
Mice
Spine / physiology
alpha-Linolenic Acid / blood,  pharmacology
Chemical
Reg. No./Substance:
463-40-1/alpha-Linolenic Acid; 8001-26-1/Linseed Oil

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


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