There have actually been quite a few studies conducted on this topic. For the most part, they all seem to agree that omega 3 fatty acids DO have some anti-inflammatory properties. One double-blind study of patients with active RA examined the effects of fish oil capsule supplements in addition to the standard arthritis medications and concluded that fish-oil consumption resulted in the improvement of RA symptoms and a reduction in neutrophil leukotriene B4 production. Another study looked at the long-term effects of omega 3 fatty acid supplementation in people with rheumatoid arthritis and found that a daily intake of 2.6 gm results in significant improvement and may reduce the need for concomitant anti rheumatic medication. Several other studies I read had similar results. Therefore, it does seem that an omega 3 fatty acid supplement may be helpful to people with rheumatoid arthritis - the question that remains now is that of dosage. We still are not sure the dosage that is recommended to produce significant improvement for patients. Further studies need to be conducted to determine this (although the above study suggests 2.6 grams/day so that may be a good approximation).
Sources:
Geusens, Piet, Carine Wouters, Jos Nijs, Yebin Jiang, and Jan Dequeker. "Long-term Effect of Omega-3 Fatty Acid Supplementation in Active Rheumatoid Arthritis." Arthritis & Rheumatism 37.6 (1994): 824-29. Print.
Kremer, JM, W. Jubiz, A. Michalek, RI Rynes, and LE Bartholomew. "Fish-Oil Fatty Acid Supplementation in Active Rheumatoid Arthritis." Ann Intern Med. 4 (1987): 497-502. Print.
Proudman, Susanna M., Leslie G. Cleland, and Michael J. James. "Dietary Omega-3 Fats for Treatment of Inflammatory Joint Disease: Efficacy and Utility." Rheumatic Disease Clinics of North America 34.2 (2008): 469-79. Print.
Adrijana, I found your post interesting because I am currently doing work in type 1 diabetes on a study that found dietary intake of omega-3 polyunsaturated fatty acids to be associated with a reduced risk of islet autoimmunity in children at increased genetic risk for developing type 1 diabetes. Islet autoimmunity is a preclinical phase that often, but not always, precedes a clinical diagnosis of type 1 diabetes. Type 1 diabetes, like rheumatoid arthritis, is an autoimmune disease. In reading your post, I wondered if any research has been done on intake of omega-3 polyunsaturated fatty acids and development of autoantibodies in rheumatoid arthritis. It would be amazing if omega-3 polyunsaturated fatty acids could be used to both treat rheumatoid arthritis and reduce the risk of developing autoantibodies.
ReplyDeleteNorris, J.M., Yin, X., Lamb, M.M., Barriga, K., Seifert, J., Hoffman, M., Orton, H.D., Baron, A.E., Clare-Salzler, M., Chase, H.P., Szabo, N.J., Erlich, H., Eisenbarth, G.S., Rewers, M. (2007). Omega-3 polyunsaturated fatty acid intake and islet autoimmunity in children at increased risk for type 1 diabetes. JAMA, 298(12), 1420-1428.
Yes! It definitely seems like an excellent area of research and if it helps reduce the risk of developing autoantibodies, that could help with many different health issues. I was actually surprised about how many beneficial effects they found with these fatty acids.
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