求翻译：Omega-3 fatty acids are also important components of substances known as prostaglandins and leukotrienes. Prostaglandins and leukotrienes are important in immune function, smooth muscle function, platelet aggregation and inflammation. Fish oils have an anti-inflammatory action because prostaglandins and leukotrienes from omega-3 fatty acids have less inflammatory activity than prostaglandins and leukotrienes derived from other types of fatty acids.是什么意思？

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