Document Detail

Assessment of blood measures of n-3 polyunsaturated fatty acids with acute fish oil supplementation and washout in men and women.
MedLine Citation:
PMID:  19515545     Owner:  NLM     Status:  MEDLINE    
Changes in n-3 highly unsaturated fatty acids (HUFA, > or =20 carbons and > or =3 carbon-carbon double bonds) at baseline, during fish oil supplementation (4 weeks) and during washout (8 weeks) were compared in venous plasma, erythrocytes, whole blood and fingertip prick blood (weeks 0, 4, 8 and 12) with additional weekly fingertip prick samples. Correlations between the various blood fractions were slightly stronger when n-3 HUFA status was expressed as the percentage of n-3 HUFA in total HUFA as compared with the sum of EPA and DHA. Increases and decreases in n-3 HUFA were more dramatic in plasma, and EPA responded rapidly (within 1 week) with fish oil supplementation and cessation. Sex differences in the proportions of n-3 HUFA in blood were also apparent at baseline with females (n=7) having a tendency for higher docosahexaenoic acid (DHA, 22:6n-3) relative to eicosapentaenoic acid (EPA, 20:5n-3) and n-3 docosapentaenoic acid (DPAn-3, 22:5n-3) as compared with males (n=9). Further n-3 biomarker research in larger populations is required.
A H Metherel; J M Armstrong; A C Patterson; K D Stark
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-06-09
Journal Detail:
Title:  Prostaglandins, leukotrienes, and essential fatty acids     Volume:  81     ISSN:  1532-2823     ISO Abbreviation:  Prostaglandins Leukot. Essent. Fatty Acids     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-07-06     Completed Date:  2009-09-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802730     Medline TA:  Prostaglandins Leukot Essent Fatty Acids     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  23-9     Citation Subset:  IM    
Laboratory of Nutritional and Nutraceutical Research, Department of Kinesiology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1.
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MeSH Terms
Dietary Supplements*
Eicosapentaenoic Acid / blood*
Fatty Acids, Omega-3 / blood
Fatty Acids, Unsaturated / blood*
Fish Oils / administration & dosage*
Sex Factors
Young Adult
Reg. No./Substance:
0/Fatty Acids, Omega-3; 0/Fatty Acids, Unsaturated; 0/Fish Oils; 1553-41-9/Eicosapentaenoic Acid; 25448-00-4/docosapentaenoic acid

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

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