(±)16(17)-DiHDPA is a epoxygenase metabolite of docosahexaenoic acid (HY-B2167). (±)16(17)-DiHDPA inhibits platelet aggregation at concentrations below those affecting thromboxane synthesis[1][2].

EDHF (endothelium-derived hyperpolarizing factor) is an unidentified mediator released from vascular endothelial cells in response to acetylcholine and bradykinin which is distinct from the NOS- (nitric oxide) and COX-derived (prostacyclin) vasodilators.[1],[2]Cytochrome P450 (CYP450) metabolism of polyunsaturated fatty acids produces epoxides such as (±)14(15)-EET which are prime candidates for the actual active mediator.[3] However, the CYP450 […]