| Acute fish oil and soy isoflavone supplementation increase postprandial serum (n-3) polyunsaturated fatty acids and isoflavones but do not affect triacylglycerols or biomarkers of oxidative stress in overweight and obese hypertriglyceridemic men. | |
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MedLine Citation:
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PMID: 19339704 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Chronic consumption of fish and fish oil high in (n-3) PUFA reduces triacylglycerols (TG) but may increase oxidative stress, whereas consumption of soy isoflavones may reduce oxidative stress. Elevated serum TG and oxidative stress are considered cardiovascular disease (CVD) risk factors, but the effects of acute (n-3) PUFA and soy isoflavones on these CVD risk factors are unknown. The purpose of the study was to determine the effects of acutely supplementing a high-fat, high-fructose meal with fish oil and isoflavone placebo (FO) and fish oil placebo and soy isoflavones (ISO). In a randomized, double-blind, placebo-controlled, crossover study, 10 overweight or obese men consumed a high-fat, high-fructose meal with 4 dietary supplement combinations: fish oil placebo and isoflavone placebo (placebo); fish oil and isoflavone placebo (FO); fish oil placebo and isoflavones (ISO); and fish oil and isoflavones (FO + ISO). Serum collected at baseline and at 2, 4, and 6 h postprandially was analyzed for fatty acids, isoflavones, TG, and oxidative stress biomarkers (lipid hydroperoxides, oxidized-LDL, total antioxidant status). FO significantly increased serum (n-3) PUFA and ISO increased serum isoflavones. The study meal significantly increased serum total fatty acids and TG without affecting oxidative stress biomarkers. Serum TG and oxidative stress biomarkers did not differ between treatments. The FO and ISO were bioavailable but did not attenuate the postprandial rise in serum TG. Neither the study meal nor the FO or ISO induced significant changes in oxidative stress biomarkers. The current study adds to a limited literature on the acute effects of FO and ISO interventions on postprandial biomarkers of CVD risk. |
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Authors:
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Heather E C Hanwell; Colin D Kay; Johanna W Lampe; Bruce J Holub; Alison M Duncan |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2009-04-01 |
Journal Detail:
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Title: The Journal of nutrition Volume: 139 ISSN: 1541-6100 ISO Abbreviation: J. Nutr. Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-05-21 Completed Date: 2009-06-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404243 Medline TA: J Nutr Country: United States |
Other Details:
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Languages: eng Pagination: 1128-34 Citation Subset: IM |
Affiliation:
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Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada, N1G 2W1. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Biological Markers Cross-Over Studies Dietary Supplements Double-Blind Method Fatty Acids, Omega-3 / blood* Fish Oils / administration & dosage, pharmacology* Humans Hypertriglyceridemia / blood* Isoflavones / blood, pharmacology* Male Middle Aged Overweight / blood Oxidative Stress / physiology Postprandial Period Soybeans* Triglycerides / blood* |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Fatty Acids, Omega-3; 0/Fish Oils; 0/Isoflavones; 0/Triglycerides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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