| Unrefined and Refined Black Raspberry Seed Oils Significantly Lower Triglycerides and Moderately Affect Cholesterol Metabolism in Male Syrian Hamsters. | |
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MedLine Citation:
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PMID: 21548801 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Unrefined and refined black raspberry seed oils (RSOs) were examined for their lipid-modulating effects in male Syrian hamsters fed high-cholesterol (0.12% g/g), high-fat (9% g/g) diets. Hamsters fed the refined and the unrefined RSO diets had equivalently lower plasma total cholesterol and high-density lipoprotein (HDL) cholesterol in comparison with the atherogenic coconut oil diet. The unrefined RSO treatment group did not differ in liver total and esterified cholesterol from the coconut oil-fed control animals, but the refined RSO resulted in significantly elevated liver total and esterified cholesterol concentrations. The unrefined RSO diets significantly lowered plasma triglycerides (46%; P=.0126) in comparison with the coconut oil diet, whereas the refined RSO only tended to lower plasma triglyceride (29%; P=.1630). Liver triglyceride concentrations were lower in the unrefined (46%; P=.0002) and refined (36%; P=.0005) RSO-fed animals than the coconut oil group, with the unrefined RSO diet eliciting a lower concentration than the soybean oil diet. Both RSOs demonstrated a null or moderate effect on cholesterol metabolism despite enrichment in linoleic acid, significantly lowering HDL cholesterol but not non-HDL cholesterol. Dramatically, both RSOs significantly reduced hypertriglyceridemia, most likely due to enrichment in α-linolenic acid. As a terrestrial source of α-linolenic acid, black RSOs, both refined and unrefined, provide a promising alternative to fish oil supplementation in management of hypertriglyceridemia, as demonstrated in hamsters fed high levels of dietary triglyceride and cholesterol. |
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Authors:
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Mark M Ash; Kate A Wolford; Trevor J Carden; Keum Taek Hwang; Timothy P Carr |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-6 |
Journal Detail:
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Title: Journal of medicinal food Volume: - ISSN: 1557-7600 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9812512 Medline TA: J Med Food Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1 Department of Nutrition and Health Sciences, University of Nebraska , Lincoln, Nebraska, USA . |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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