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March 7, 2005 Boston, MA - The anti-inflammatory effect of fish oils appears to be due to a powerful anti-inflammatory compound called resolvin (resolution-phase interaction product) E1, which is produced from eicosapentaenoic acid (EPA), Dr Makoto Arita (Brigham and Women's Hospital and Harvard Medical School, Boston, MA) and colleagues report in the March 7, 2005 issue of the Journal of Experimental Medicine [1]. Arita writes, "At nanomolar levels, resolvin E1 dramatically reduced dermal inflammation, peritonitis, dendritic cell migration, and interleukin (IL)-12 production.

An endogenous regulator of inflammation, resolvin E1, modulates osteoclast differentiation and bone resorption. Herrera BS, Ohira T, Gao L, Omori K, Yang R, Zhu M, Muscara MN, Serhan CN, Van Dyke TE, Gyurko R. Br J Pharmacol. 2008 Dec;155(8):1214-23. Epub 2008 Sep 22. PMID: 18806821

Resolvin E1 selectively interacts with leukotriene B4 receptor BLT1 and ChemR23 to regulate inflammation. Arita M, Ohira T, Sun YP, Elangovan S, Chiang N, Serhan CN. J Immunol. 2007 Mar 15;178(6):3912-7. PMID: 17339491

Identification of endogenous resolvin E1 and other lipid mediators derived from eicosapentaenoic acid via electrospray low-energy tandem mass spectrometry: spectra and fragmentation mechanisms. Lu Y, Hong S, Yang R, Uddin J, Gotlinger KH, Petasis NA, Serhan CN. Rapid Commun Mass Spectrom. 2007;21(1):7-22. PMID: 17131464

Stereochemical assignment, antiinflammatory properties, and receptor for the omega-3 lipid mediator resolvin E1. Arita M, Bianchini F, Aliberti J, Sher A, Chiang N, Hong S, Yang R, Petasis NA, Serhan CN. J Exp Med. 2005 Mar 7;201(5):713-22. PMID: 15753205 oi:10.1084/jem.20042031

Controlling inflammation: a fat chance? Flower RJ, Perretti M. J Exp Med. 2005 Mar 7;201(5):671-4. Review. PMID: 15753201 doi:10.1084/jem.20050222

The contributions of aspirin and microbial oxygenase to the biosynthesis of anti-inflammatory resolvins: novel oxygenase products from omega-3 polyunsaturated fatty acids. Arita M, Clish CB, Serhan CN. Biochem Biophys Res Commun. 2005 Dec 9;338(1):149-57. Epub 2005 Aug 10. Review. PMID: 16112645 doi:10.1016/j.bbrc.2005.07.181    

RvE1 protects from local inflammation and osteoclast- mediated bone destruction in periodontitis. Hasturk H, Kantarci A, Ohira T, Arita M, Ebrahimi N, Chiang N, Petasis NA, Levy BD, Serhan CN, Van Dyke TE. FASEB J. 2006 Feb;20(2):401-3. Epub 2005 Dec 22. PMID: 16373400 doi:10.1096/fj.05-4724fje