How fish oil might reduce inflammation.

ISLAMABAD -- Recent research has revealed a mechanism through which fish oil, which contains omega-3 fatty acids, might reduce inflammation. A study that tested an enriched fish oil supplement found that it increased blood levels of certain anti-inflammatory molecules. The anti-inflammatory molecules are called specialized pro-resolving mediators (SPMs), and they have a powerful effect on white blood cells, as well as controlling blood vessel inflammation. Scientists already knew that the body makes SPMs by breaking down essential fatty acids, including some omega-3 fatty acids. However, the relationship between supplement intake and circulating levels of SPMs remained unclear. So, a team of researchers from the William Harvey Research Institute at Queen Mary University of London in the United Kingdom set out to clarify the relationship by testing the effect of an enriched fish oil supplement in 22 healthy volunteers whose ages ranged from 19 to 37 years. The team conducted the Circulation Research study as a double-blind, placebo controlled trial.

Therefore, neither the participants nor those who gave them the doses and monitored them knew who received fish oil supplements and who received the placebo. "We used the molecules as our biomarkers to show how omega-3 fatty acids are used by our body and to determine if the production of these molecules has a beneficial effect on white blood cells, " says senior study author...