14-hdha

(±)14-HDHA是一种羟基二十二碳六烯酸，是DHA在细胞内通过酶促或非酶促反应生成的氧化代谢物，是15-PGDH的特异性底物之一并且可以被进一步氧化为具有抗炎性的14-oxoDHA，在原代肺泡巨噬细胞中，14-HDoHE 本身也能显著抑制 LPS 诱导的 IL-6 mRNA 表达，可能与哮喘等炎症性疾病有关。

Docosahexaenoic acid is a nutritionally-derived ω-3 fatty acid that is abundant in the brain and the retina and is thought to be important in early development and for therapeutic approaches to inflammatory disorders and cancer. 14(S)-HDHA is an oxygenation product of DHA that serves as a precursor to maresin 1 , an anti-inflammatory, pro-resolving mediator that prevents polymorphonuclear neutrophil (PMN) infiltration and stimulates macrophage phagocytosis. At doses as low as 0.2 ng/mouse 14(S)-HDHA administration resulted in reduced infiltration of PMNs into sites of inflammation.

(±)11-HDHA is an autoxidation product of docosahexaenoic acid (DHA) in vitro. It is also produced from incubations of DHA in rat liver, brain, and intestinal microsomes. DHA is metabolized to 11(S)-HDHA by human platelets and canine retina. In addition to 11(S)-HDHA, 14(S)-HDHA is also produced by platelets. 11(S)-HDHA was shown to be an inhibitor of U-46619-induced human platelet aggregation and rabbit and rat aortic smooth muscle contraction with IC50 values of about 50, 4.7, and 7.5 μM, respectively. (±)11-HDHA is a potential marker of oxidative stress in brain and retina where DHA is an abundant polyunsaturated fatty acid.