In biochemistry,<unk> s are signaling molecules derived from omega-3 (ω-3) or omega-6 (ω-6) fats.
They exert complex control over many bodily systems, especially in inflammation, immunity and as messengers in the central nervous system.  
The networks of controls that depend upon<unk> s are among the most complex in the human body.
The ω-6<unk> s are generally pro-inflammatory; ω-3's are much less so.  
The amounts of these fats in a person's diet will affect the body's<unk> -controlled functions, with effects on cardiovascular disease, triglycerides, blood pressure, and arthritis.  Anti-inflammatory drugs such as aspirin and NSAIDs act by downregulating<unk>  synthesis.
There are four families of<unk> s—the prostaglandins, prostacyclins, the thromboxanes and the leukotrienes.  For each,  there are two or three separate series, derived either from an ω-3 or ω-6 essential fatty acid.  These series' different activities largely explain the health effects of ω-3 and ω-6 fats.
Eicosanoid
Phospholipid
Pectin
Thromboxane
Glycolipid
Amyloid
Antimicrobial peptides
Terpene