Arachidonic acid (20:4, AA)
MetabolismAA is a polyunsaturated omega-6 fatty acid that serves as a precursor to numerous pro-inflammatory and vasoactive mediators.
Reference range
20400
Low
Normal
High
mg/l
Source: lab benchmark
Reference ranges may vary between labs and assays. Always interpret results with your healthcare provider.
Why this matters
While essential for cell signaling and immune function, excessive Arachidonic Acid (AA) relative to omega-3s promotes chronic inflammation. Monitoring AA helps balance pro- and anti-inflammatory lipid pathways.
How this connects to other biomarkers
- Arachidonic Acid is the precursor to pro-inflammatory eicosanoids (PGE2, LTB4, TXA2) and is balanced against Eicosapentaenoic Acid (20:5, EPA) in the AA / EPA Ratio.
- Elevated AA with high AA / DGLA Ratio indicates active conversion to pro-inflammatory pathways; pair with hs-CRP to gauge clinical impact.
Included in
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