Effects of Omega-3 Fatty Acids on Risk Factors for Breast Cancer in Pre-menopausal Women

2016-06-28 21:23:21 | BioPortfolio


Healthy premenopausal women were enrolled in a diet intervention study that examined the effect of a combination EPA/DHA supplement on risk factors associated with breast cancer. In a randomized cross-over design, women consumed their habitual diet with a supplement for three menstrual cycles, had three cycles of wash-out and then consumed a low-fat diet with the same supplement. Blood, urine and nipple aspirate fluid were collected periodically over the 10 month protocol and analyzed for biomarkers associated with supplementation and future risk of breast cancer.


Non-pregnant, non-lactating women aged 18+ were recruited by way of posters, to take part in a dietary intervention study that was examining the effects of dietary fat level and fat type on risk factors associated with breast cancer. Women who were normally menstruating, consumed either their habitual diet or a low-fat diet for three menstrual cycles, along with a supplement containing 1.2 g DHA+EPA /day. This was followed by a 3-menstrual cycle washout, where the habitual diet was consumed without a supplement. Subsequently the participants consumed the other diet (either low-fat or habitual) for a further 3 menstrual cycles with the 1.2 g DHA/EPA supplement. Blood, urine and nipple aspirate fluid were colllected at the beginning and end of each intervention period and analyzed for a variety of biomarkers. Diet records were collected continuously over the entire study period and periodic 7-day records examined for collection of detailed nutrition information. Anthropometry was completed at each study visit, and nutritional counselling provided throughout.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Prevention




omega-3 fatty acid




University of Guelph

Results (where available)

View Results


Published on BioPortfolio: 2016-06-28T21:23:21-0400

Clinical Trials [2291 Associated Clinical Trials listed on BioPortfolio]

Omega 3 Fatty Acid Trial

This study is being done to detect the metabolic changes that Omega 3 fatty acid treatment has on the brain and to find out whether magnetic resonance spectroscopy (MRS) scan can detect me...

The Omega-3 Fatty Acid Paediatric Depression Trial

This study investigates the therapeutic efficacy and safety of omega-3 fatty acids rich in eicosapentaenoic acid / docosahexaenoic acid in pediatric depression in a nine months double-blin...

Intervention With Omega Fatty Acids in High-risk Patients

In order to reduce cardiovascular risk, current European guidelines recommend a diet low on saturated fatty acid through replacement with polyunsaturated fatty acids (PUFA). Polyunsaturate...

Omega-3 Fatty Acids for Treating Adults With Major Depression

This study will test the effectiveness of two different kinds of omega-3 fatty acid dietary supplements in treating the symptoms of major depression.

"Health Promoting Effects of the Microalgae Phaeodactylum Tricornutum"

The aim of the research project is to investigate the uptake of omega-3 fatty acids into the blood plasma through the consumption of the microalgae Phaeodactylum tricornutum (PT) in a huma...

PubMed Articles [12193 Associated PubMed Articles listed on BioPortfolio]

Omega-3 and omega-6 polyunsaturated fatty acids for dry eye disease.

Polyunsaturated fatty acid (PUFA) supplements, involving omega-3 and/or omega-6 components, have been proposed as a therapy for dry eye. Omega-3 PUFAs exist in both short- (alpha-linolenic acid [ALA])...

Effects of hemodialysis on blood fatty acids.

Omega-3 (n-3) fatty acids have beneficial cardiovascular effects, perhaps also in chronic kidney disease (CKD) patients. A low omega-3 index is an independent cardiovascular risk factor in end-stage r...

An analysis of omega-3 fatty acid status in a population of pregnant women with obesity, at higher risk of preterm birth.

An updated Cochrane Review showed that maternal supplementation with omega-3 fatty acids reduced preterm birth, offering a potential strategy for prevention. We hypothesised that pregnant women with o...

Randomized Study Design to Test Effects of Vitamin D and Omega-3 Fatty Acid Supplementation as Adjuvant Therapy in Colorectal Cancer Patients.

This study examines the effects of vitamin D and omega-3 fatty acid co-supplementation on inflammation and nutritional status in colorectal cancer patients. Patients were randomly assigned into four g...

Discrepancy Between Fasting Flow-Mediated Dilation and Parameter of Lipids in Blood: A Randomized Exploratory Study of the Effect of Omega-3 Fatty Acid Ethyl Esters on Vascular Endothelial Function in Patients With Hyperlipidemia.

Omega-3 fatty acid ethyl esters (omega-3), an eicosapentaenoic acid and docosahexaenoic acid preparation (Lotriga, Takeda Pharmaceutical Company Limited), are approved in Japan to treat triglyceridemi...

Medical and Biotech [MESH] Definitions

FATTY ACIDS which have the first unsaturated bond in the sixth position from the omega carbon. A typical American diet tends to contain substantially more omega-6 than OMEGA-3 FATTY ACIDS.

A group of fatty acids, often of marine origin, which have the first unsaturated bond in the third position from the omega carbon. These fatty acids are believed to reduce serum triglycerides, prevent insulin resistance, improve lipid profile, prolong bleeding times, reduce platelet counts, and decrease platelet adhesiveness.

An omega-6 fatty acid produced in the body as the delta 6-desaturase metabolite of linoleic acid. It is converted to dihomo-gamma-linolenic acid, a biosynthetic precursor of monoenoic prostaglandins such as PGE1. (From Merck Index, 11th ed)

An unsaturated fatty acid that is the most widely distributed and abundant fatty acid in nature. It is used commercially in the preparation of oleates and lotions, and as a pharmaceutical solvent. (Stedman, 26th ed)

A doubly unsaturated fatty acid, occurring widely in plant glycosides. It is an essential fatty acid in mammalian nutrition and is used in the biosynthesis of prostaglandins and cell membranes. (From Stedman, 26th ed)

More From BioPortfolio on "Effects of Omega-3 Fatty Acids on Risk Factors for Breast Cancer in Pre-menopausal Women"

Quick Search

Relevant Topics

Women's Health
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...

Breast Cancer
Track and monitor developments in breast cancer research and commercial development.  Follow the tabs above to read the latest global news, research, clinical trials on breast cancer and follow companies active in the development of breast cancer tr...

Benign Prostatic Hyperplasia (BPH) Erectile Dysfunction Urology Urology is the branch of medicine concerned with the urinary tract and diseases that affect it. Examples include urethritis, urethrostenosis and incontinence. Urology is a su...

Searches Linking to this Trial