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The anti-inflammatory compound palmitoylethanolamide inhibits prostaglandin and hydroxyeicosatetraenoic acid production by a macrophage cell line

Linda Gabrielsson, Sandra Gouveia-Figueira, Jenny Häggström, Mireille Alhouayek, Christopher J Fowler. Pharmacol Res Perspect. 2017 Feb 27;5(2):e00300.

Laboratory studyOther animals

Design
Laboratory study
Subjects
RAW264.7 mouse macrophage cell line, stimulated with lipopolysaccharide and interferon-gamma
Dose used in the study
PEA 10 micromol/L
Duration
24 hours
What was measured
COX-2 mRNA, prostaglandin D2 and E2, 11- and 15-HETE, linoleic acid-derived oxylipins, and direct effects on COX-2 enzyme activity.

What the authors reported

PEA did not change COX-2 mRNA levels but reduced prostaglandin D2 and E2 and 11- and 15-HETE, an effect that held even when PEA breakdown to palmitic acid was blocked. Linoleic acid-derived oxylipins were unaffected, and PEA had no direct effect on COX-2 oxygenation of arachidonic acid or 2-AG.

Limits of this study

A cell-line study; it cannot show effect in animals or people. Funding and conflicts not stated in the abstract.

Source

PubMed 28357126 · doi:10.1002/prp2.300

Entry checked against the abstract on PubMed on 2026-09-22. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.