CYP2J2 and atrial fibrillation: Intriguingly, emerging evidence indicated that eicosapentaenoic acid (EPA, 20:5n‐3) and docosahexaenoic acid (DHA, 22:6n‐3) were also generated via the cytochrome P450 (CYP) epoxygenase pathway, and EPA/DHA were well known to possess anti‐inflammatory and anti‐arrhythmic properties and exert pleiotropic beneficial effects on cardiovascular function,48, 49 which may contribute to the inhibition of CYP2J2 on AF.