Gender-specific inhibition of platelet aggregation following omega-3 fatty acid supplementation

Phang, M., Sinclair, A. J., Lincz, L. F. and Garg, M. L. 2012, Gender-specific inhibition of platelet aggregation following omega-3 fatty acid supplementation, Nutrition, metabolism & cardiovascular diseases, vol. 22, no. 2, pp. 109-114.

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Title Gender-specific inhibition of platelet aggregation following omega-3 fatty acid supplementation
Author(s) Phang, M.
Sinclair, A. J.
Lincz, L. F.
Garg, M. L.
Journal name Nutrition, metabolism & cardiovascular diseases
Volume number 22
Issue number 2
Start page 109
End page 114
Total pages 6
Publisher Medikal Press S.L.R.
Place of publication Napoli, Italy
Publication date 2012-02
ISSN 0939-4753
1590-3729
Keyword(s) docosahexaenoic acid
eicosapentaenoic acid
gender
platelet aggregation
sex hormones
Summary Background and Aims : Increased platelet aggregation is a major risk factor for heart attacks, stroke and thrombosis. Long chain omega-3 polyunsaturated fatty acids (LCn-3PUFA; eicosapentaenoic acid, EPA; docosahexaenoic acid, DHA) reduce platelet aggregation; however studies in the published literature involving EPA and/or DHA supplementation have yielded equivocal results. Recent in vitro studies have demonstrated that inhibition of platelet aggregation by LCn-3PUFA is gender specific. We examined the acute effects of dietary supplementation with EPA or DHA rich oils on platelet aggregation in healthy male and females.

Methods and Results :
A blinded placebo controlled trial involving 15 male and 15 female subjects. Platelet aggregation was measured at 0, 2, 5 and 24 h post-supplementation with a single dose of either a placebo or EPA or DHA rich oil capsules. The relationship between LCn-3PUFA and platelet activity at each time point was examined according to gender vs. treatment. EPA was significantly the most effective in reducing platelet aggregation in males at 2, 5 and 24 h post-supplementation (−11%, −10.6%, −20.5% respectively) whereas DHA was not effective relative to placebo. In contrast, in females, DHA significantly reduced platelet aggregation at 24 h (−13.7%) while EPA was not effective. An inverse relationship between testosterone levels and platelet aggregation following EPA supplementation was observed.

Conclusion : Interactions between sex hormones and omega-3 fatty acids exist to differentially reduce platelet aggregation. For healthy individuals, males may benefit more from EPA supplementation while females are more responsive to DHA.
Language eng
Field of Research 110101 Medical Biochemistry: Amino Acids and Metabolites
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2010, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30029854

Document type: Journal Article
Collection: School of Medicine
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