Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

The Octadecanoids: Synthesis and Bioactivity of 18-Carbon Oxygenated Fatty Acids in Mammals, Bacteria, and Fungi

Johanna Revol-Cavalier, Alessandro Quaranta, John W. Newman, Alan Brash, Mats Hámberg, Craig E. Wheelock

Chemical Reviews · 2024

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Summary

This Chemical Reviews article synthesises current understanding of octadecanoids—oxygenated 18-carbon fatty acid metabolites—across mammalian, bacterial and fungal biology. Whilst octadecanoids are well-characterised plant signalling molecules, the review documents their emerging roles in mammalian inflammation, immunity, coagulation and tissue homeostasis, alongside newer evidence for gut microbiota as significant biosynthetic sources. The authors propose standardised nomenclature, detail analytical and preparative methods, and discuss potential biomarker applications in pathophysiology.

Regional applicability

This is a biochemical and mechanistic review without geographic specificity or field application focus. Its findings on octadecanoid metabolism and bioactivity are applicable internationally, though UK clinical and nutritional research may find utility in the proposed biomarker framework and standardised nomenclature for future dietary and health studies.

Key measures

Octadecanoid chemical structures, biosynthetic enzymatic pathways (COX, LOX, CYP, hydratase), biological activity mechanisms, measurement and preparation methods

Outcomes reported

The review characterises octadecanoid biosynthetic pathways and their enzymatic origins (COX, LOX, CYP) across mammalian, bacterial and fungal systems, and summarises their biological roles in inflammation, immunity, tissue modulation, coagulation and hormone regulation. It proposes standardised nomenclature and describes potential use of octadecanoids as biomarkers of health and disease.

Theme
Nutrition & health
Subject
Dietary fats & fatty acids
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
System type
Laboratory / in vitro
DOI
10.1021/acs.chemrev.3c00520
Catalogue ID
SNmq0elchv-cyafr3

Topic tags

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