Docosahexaenoic acid is an ω-3 fatty acid that is abundant in the brain and the retina and is known to be important in early development.[1] [2] Maresin 2 (MaR2) is a 13R,14S-dihydroxy DHA formed by recombinant human macrophage 12-lipoxygenase and soluble epoxide hydrolase co-incubated with DHA. [3] At 1 ng/mouse, MaR2 was shown to reduce neutrophil infiltration by 40% in a mouse model of peritonitis, and at 10 pM, MaR2 can enhance human macrophage phagocytosis of zymosan A by 90%. [3] Analytical and biological comparisons of synthetic MaR2 with endogenously derived MaR2 have confirmed its identity as matching the natural product.[4]

Reference:
[1]. Su, H.-M. Mechanisms of n-3 fatty acid-mediated development and maintenance of learning memory performance. J. Nutr. Biochem. 21(5), 364-373 (2010).
[2]. Wu, T.C., and Chen, P.H. Health consequences of nutrition in childhood and early infancy. Pediatr. Neonatol. 50(4), 135-142 (2009).
[3]. Deng, B., Wang, C.W., Arnardottir, H.H., et al. Maresin biosynthesis and identification of maresin 2, a new anti-inflammatory and pro-resolving mediator from human macrophages. PLoS One 9(7), (2014).
[4]. Serhan, C. . (2007).