Posts Tagged ‘Essential Fatty Acid’

Effect of essential fatty acid omega 3 on toll-like receptors in patients with severe multiple trauma.

Saturday, September 10th, 2011

Source

Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China, 16750666@qq.com.

Abstract

This study examined the effects of ω-3 polyunsaturated fatty acid (ω-3PUFA) on the expression of toll-like receptor 2 (TLR2), toll-like receptor 4 (TLR4) and some related inflammatory factors in peripheral blood mononuclear cells (PBMCs) of patients with early-stage severe multiple trauma. Thirty-two patients who were admitted to the Department of Traumatic Surgery, Tongji Hospital (Wuhan, China) between May 2010 and November 2010, and diagnosed as having severe multiple trauma with a injury severity score (ISS) no less than 16, were enrolled in the study and divided into two groups at random (n=16 in each): ω-3PUFA group and control group in which routine parenteral nutrition supplemented with ω-3PUFA or not was administered to the patients in two groups for consecutive 7 days. Peripheral blood from these patients was collected within 2 h of admission (day 0), and 1, 3, 5 and 7 days after the nutritional support. PBMCs were isolated and used for detection of the mRNA and protein expression of TLR2 and TLR4 by using real-time PCR and flow cytometry respectively, the levels of NF-κB by quantum dots-based immunofluorescence assay, the levels of TNF-α, IL-2, IL-6 and COX-2 by ELISA, respectively. The results showed that the mRNA and protein expression of TLR2 and TLR4 in PBMCs was significantly lower in ω-3PUFA group than in control group 5 and 7 days after nutrition support (both P<0.05). The levels of TNF-α, IL-2, IL-6 and COX-2 were found to be substantially decreased in PBMCs in ω-3PUFA group as compared with control group at 5th and 7th day (P<0.05 for all). It was concluded that ω-3PUFA can remarkably decrease the expression of TLR2, TLR4 and some related inflammatory factors in NF-κB signaling pathway in PBMCs of patients with severe multiple trauma, which suggests that ω-3PUFA may suppress the excessive inflammatory response meditated by the TLRs/NF-κB signaling pathway.

A diet high in Essential Fatty Acids Omega 3 EPA and DHA during pregnancy reduce risk of Cancer

Thursday, August 4th, 2011

Researchers have suggested that if an expectant mother increases her consumption of foods high in omega3 essential fatty acids EPA /DHA or nutrients during her pregnancy, she can potentially reduce the risk of breast cancer in her female offspring.

The research delves into breast cancer risk reductions attributed to the fetus when the mother, while pregnant, increases omega 3 essential fatty acids EPA and DHA within her diet or consumes dietary methyl nutrients (methionine, choline, folate and vitamin B12). Some findings hypothesize that these diet augmentations may even prevent breast cancer from ever developing in the offspring.

The study looked at 45 pregnant rats and randomized them into two groups: one to receive a control and the other to be fed a methyl-supplemented diet. Once the pups were born, they were separated into three additional groups depending on the feeding regime of their mother. When the female pups reached a specific age, they were exposed to a chemical that induced breast cancer and researchers charted when the first tumour appeared and measured all tumour sizes and volumes.

Results demonstrated that the offspring from the methyl-supplemented diet group showed a decrease in tumour incidence and growth when compared to the control group. Also, they had fewer tumours and fewer tumours that multiplied.

“The conclusions of this study suggest that we may be able to prevent the development of breast cancer in daughters of women at risk for breast cancer by supplementing the mother’s diet during pregnancy,” said Dr. Chung Park, North Dakota State University. Essential Fatty Acid Omega 3 EPA has been shown to inhibit tumour development / growth in adult subjects

The research was presented at the Era of Hope conference, a scientific meeting hosted by the Department of Defense Breast Cancer Research Program (BCRP).

Omega 3 Fish Oil benefits Intensifies the positive effect of Tamoxifen

Monday, April 11th, 2011

Female mice that ingested fish oil supplements with breast cancer drug tamoxifen appeared to have slowed the proliferation of their tumors, compared to rodents given corn oil with the drug, according to researchers at Fox Chase Cancer Center.

In the controlled study, the team of scientists found that the omega-3 fatty acids found in fish oil helped to slow gene expression related to tumor growth.

“If a tumor was being treated with tamoxifen, the addition of an omega-3 fatty acid diet seemed to make the tumor, at least at the molecular level, more benign and less aggressive and responsive to tamoxifen,” said lead researcher Jose Russo, M.D. TakeOmega3 due to its unique high EPA formulation with 750mg EPA per capsule and its high purity of 85% omega3 would be the ideal omega3 supplement to take alongside Tamoxifen . TakeOmega3 offers the highest concentration currently available and it is uniquely manufactured in facilities licensed by MHRA (Medical Health & Regulatory Authority) here in UK . No other omega3 supplement currently offers these benefits .

Additionally, the healthy fats appeared to curb immune responses that result in allergies and inflammation. These negative effects have been known to alter the body’s natural defense against cancer.

Next, the researchers hope to investigate how omega-3 fatty acids in a diet can affect risk of breast cancer in women.

Authors of the study noted that an estimated 200,000 women are diagnosed with the disease each year.

Breast cancer is the second most common cancer among women, with more than 200,000 women diagnosed each year. Being exposed to estrogen over a long period of time is one factor that can increase a woman’s risk of developing the disease. One way a woman can combat this risk factor is by taking the breast cancer drug tamoxifen, which interferes with the activity of estrogen. Now, researchers at Fox Chase Cancer Center have found that omega-3 fatty acids — abundant in fish — could be a safe and beneficial booster for tamoxifen therapy.

Jose Russo, MD, director of the Breast Cancer Research Laboratory at Fox Chase, is presenting the new findings at the AACR 102nd Annual Meeting 2011 on April 6.
To investigate how fish oil intensifies the effects of tamoxifen, Russo, in collaboration with a team led by Andrea Manni, MD, from Pennsylvania State University, induced mammary tumors in rats and then divided the animals into four groups. They fed the groups either a 17 percent fish oil diet, with or without tamoxifen, or a 20 percent corn oil diet, with or without tamoxifen, for eight weeks. They then analyzed gene expression patterns in the tumors. Omega-3 fatty acids produced a greater expression of genes related to cellular specialization, or differentiation — a sign of lower cancer severity — compared to corn oil. The combination of fish oil and tamoxifen reduced the expression of genes linked to tumor growth and spreading.

“The fish oil diet also boosted the expression of genes related to immune defenses against tumors, more so than did the corn oil diet. But omega-3 fatty acids simultaneously increased the expression of genes that trigger counterproductive immune responses, such as inflammation and allergic reactions, which curtail the ability of cells to fight cancer and can even promote the migration of tumor cells.

More studies are needed to fully understand the effects of fish oil on the immune system, Russo says. Meanwhile, his team is examining whether omega-3 fatty acids can prevent breast cancer in animals and testing the influence of diet on breast cancer risk in women.

Co-authors on the study include Bidinotto, L.T.; Vanegas, J.E.; Vanden Heuvel, J.P.; Lopez, R.; Santucci-Pereira, J.; Washington, S., Xu; H., Russo I.H.; El-Bayoumy, K.; and Manni, A. from Fox Chase.

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